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|
- /**
- * Copyright (C) 2005 - 2015 Emulex
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation. The full GNU General
- * Public License is included in this distribution in the file called COPYING.
- *
- * Written by: Jayamohan Kallickal (jayamohan.kallickal@avagotech.com)
- *
- * Contact Information:
- * linux-drivers@avagotech.com
- *
- * Emulex
- * 3333 Susan Street
- * Costa Mesa, CA 92626
- */
- #include <linux/reboot.h>
- #include <linux/delay.h>
- #include <linux/slab.h>
- #include <linux/interrupt.h>
- #include <linux/blkdev.h>
- #include <linux/pci.h>
- #include <linux/string.h>
- #include <linux/kernel.h>
- #include <linux/semaphore.h>
- #include <linux/iscsi_boot_sysfs.h>
- #include <linux/module.h>
- #include <linux/bsg-lib.h>
- #include <scsi/libiscsi.h>
- #include <scsi/scsi_bsg_iscsi.h>
- #include <scsi/scsi_netlink.h>
- #include <scsi/scsi_transport_iscsi.h>
- #include <scsi/scsi_transport.h>
- #include <scsi/scsi_cmnd.h>
- #include <scsi/scsi_device.h>
- #include <scsi/scsi_host.h>
- #include <scsi/scsi.h>
- #include "be_main.h"
- #include "be_iscsi.h"
- #include "be_mgmt.h"
- #include "be_cmds.h"
- static unsigned int be_iopoll_budget = 10;
- static unsigned int be_max_phys_size = 64;
- static unsigned int enable_msix = 1;
- MODULE_DESCRIPTION(DRV_DESC " " BUILD_STR);
- MODULE_VERSION(BUILD_STR);
- MODULE_AUTHOR("Emulex Corporation");
- MODULE_LICENSE("GPL");
- module_param(be_iopoll_budget, int, 0);
- module_param(enable_msix, int, 0);
- module_param(be_max_phys_size, uint, S_IRUGO);
- MODULE_PARM_DESC(be_max_phys_size,
- "Maximum Size (In Kilobytes) of physically contiguous "
- "memory that can be allocated. Range is 16 - 128");
- #define beiscsi_disp_param(_name)\
- ssize_t \
- beiscsi_##_name##_disp(struct device *dev,\
- struct device_attribute *attrib, char *buf) \
- { \
- struct Scsi_Host *shost = class_to_shost(dev);\
- struct beiscsi_hba *phba = iscsi_host_priv(shost); \
- uint32_t param_val = 0; \
- param_val = phba->attr_##_name;\
- return snprintf(buf, PAGE_SIZE, "%d\n",\
- phba->attr_##_name);\
- }
- #define beiscsi_change_param(_name, _minval, _maxval, _defaval)\
- int \
- beiscsi_##_name##_change(struct beiscsi_hba *phba, uint32_t val)\
- {\
- if (val >= _minval && val <= _maxval) {\
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
- "BA_%d : beiscsi_"#_name" updated "\
- "from 0x%x ==> 0x%x\n",\
- phba->attr_##_name, val); \
- phba->attr_##_name = val;\
- return 0;\
- } \
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, \
- "BA_%d beiscsi_"#_name" attribute "\
- "cannot be updated to 0x%x, "\
- "range allowed is ["#_minval" - "#_maxval"]\n", val);\
- return -EINVAL;\
- }
- #define beiscsi_store_param(_name) \
- ssize_t \
- beiscsi_##_name##_store(struct device *dev,\
- struct device_attribute *attr, const char *buf,\
- size_t count) \
- { \
- struct Scsi_Host *shost = class_to_shost(dev);\
- struct beiscsi_hba *phba = iscsi_host_priv(shost);\
- uint32_t param_val = 0;\
- if (!isdigit(buf[0]))\
- return -EINVAL;\
- if (sscanf(buf, "%i", ¶m_val) != 1)\
- return -EINVAL;\
- if (beiscsi_##_name##_change(phba, param_val) == 0) \
- return strlen(buf);\
- else \
- return -EINVAL;\
- }
- #define beiscsi_init_param(_name, _minval, _maxval, _defval) \
- int \
- beiscsi_##_name##_init(struct beiscsi_hba *phba, uint32_t val) \
- { \
- if (val >= _minval && val <= _maxval) {\
- phba->attr_##_name = val;\
- return 0;\
- } \
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,\
- "BA_%d beiscsi_"#_name" attribute " \
- "cannot be updated to 0x%x, "\
- "range allowed is ["#_minval" - "#_maxval"]\n", val);\
- phba->attr_##_name = _defval;\
- return -EINVAL;\
- }
- #define BEISCSI_RW_ATTR(_name, _minval, _maxval, _defval, _descp) \
- static uint beiscsi_##_name = _defval;\
- module_param(beiscsi_##_name, uint, S_IRUGO);\
- MODULE_PARM_DESC(beiscsi_##_name, _descp);\
- beiscsi_disp_param(_name)\
- beiscsi_change_param(_name, _minval, _maxval, _defval)\
- beiscsi_store_param(_name)\
- beiscsi_init_param(_name, _minval, _maxval, _defval)\
- DEVICE_ATTR(beiscsi_##_name, S_IRUGO | S_IWUSR,\
- beiscsi_##_name##_disp, beiscsi_##_name##_store)
- /*
- * When new log level added update the
- * the MAX allowed value for log_enable
- */
- BEISCSI_RW_ATTR(log_enable, 0x00,
- 0xFF, 0x00, "Enable logging Bit Mask\n"
- "\t\t\t\tInitialization Events : 0x01\n"
- "\t\t\t\tMailbox Events : 0x02\n"
- "\t\t\t\tMiscellaneous Events : 0x04\n"
- "\t\t\t\tError Handling : 0x08\n"
- "\t\t\t\tIO Path Events : 0x10\n"
- "\t\t\t\tConfiguration Path : 0x20\n"
- "\t\t\t\tiSCSI Protocol : 0x40\n");
- DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL);
- DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL);
- DEVICE_ATTR(beiscsi_fw_ver, S_IRUGO, beiscsi_fw_ver_disp, NULL);
- DEVICE_ATTR(beiscsi_phys_port, S_IRUGO, beiscsi_phys_port_disp, NULL);
- DEVICE_ATTR(beiscsi_active_session_count, S_IRUGO,
- beiscsi_active_session_disp, NULL);
- DEVICE_ATTR(beiscsi_free_session_count, S_IRUGO,
- beiscsi_free_session_disp, NULL);
- struct device_attribute *beiscsi_attrs[] = {
- &dev_attr_beiscsi_log_enable,
- &dev_attr_beiscsi_drvr_ver,
- &dev_attr_beiscsi_adapter_family,
- &dev_attr_beiscsi_fw_ver,
- &dev_attr_beiscsi_active_session_count,
- &dev_attr_beiscsi_free_session_count,
- &dev_attr_beiscsi_phys_port,
- NULL,
- };
- static char const *cqe_desc[] = {
- "RESERVED_DESC",
- "SOL_CMD_COMPLETE",
- "SOL_CMD_KILLED_DATA_DIGEST_ERR",
- "CXN_KILLED_PDU_SIZE_EXCEEDS_DSL",
- "CXN_KILLED_BURST_LEN_MISMATCH",
- "CXN_KILLED_AHS_RCVD",
- "CXN_KILLED_HDR_DIGEST_ERR",
- "CXN_KILLED_UNKNOWN_HDR",
- "CXN_KILLED_STALE_ITT_TTT_RCVD",
- "CXN_KILLED_INVALID_ITT_TTT_RCVD",
- "CXN_KILLED_RST_RCVD",
- "CXN_KILLED_TIMED_OUT",
- "CXN_KILLED_RST_SENT",
- "CXN_KILLED_FIN_RCVD",
- "CXN_KILLED_BAD_UNSOL_PDU_RCVD",
- "CXN_KILLED_BAD_WRB_INDEX_ERROR",
- "CXN_KILLED_OVER_RUN_RESIDUAL",
- "CXN_KILLED_UNDER_RUN_RESIDUAL",
- "CMD_KILLED_INVALID_STATSN_RCVD",
- "CMD_KILLED_INVALID_R2T_RCVD",
- "CMD_CXN_KILLED_LUN_INVALID",
- "CMD_CXN_KILLED_ICD_INVALID",
- "CMD_CXN_KILLED_ITT_INVALID",
- "CMD_CXN_KILLED_SEQ_OUTOFORDER",
- "CMD_CXN_KILLED_INVALID_DATASN_RCVD",
- "CXN_INVALIDATE_NOTIFY",
- "CXN_INVALIDATE_INDEX_NOTIFY",
- "CMD_INVALIDATED_NOTIFY",
- "UNSOL_HDR_NOTIFY",
- "UNSOL_DATA_NOTIFY",
- "UNSOL_DATA_DIGEST_ERROR_NOTIFY",
- "DRIVERMSG_NOTIFY",
- "CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN",
- "SOL_CMD_KILLED_DIF_ERR",
- "CXN_KILLED_SYN_RCVD",
- "CXN_KILLED_IMM_DATA_RCVD"
- };
- static int beiscsi_slave_configure(struct scsi_device *sdev)
- {
- blk_queue_max_segment_size(sdev->request_queue, 65536);
- return 0;
- }
- static int beiscsi_eh_abort(struct scsi_cmnd *sc)
- {
- struct iscsi_cls_session *cls_session;
- struct iscsi_task *aborted_task = (struct iscsi_task *)sc->SCp.ptr;
- struct beiscsi_io_task *aborted_io_task;
- struct iscsi_conn *conn;
- struct beiscsi_conn *beiscsi_conn;
- struct beiscsi_hba *phba;
- struct iscsi_session *session;
- struct invalidate_command_table *inv_tbl;
- struct be_dma_mem nonemb_cmd;
- unsigned int cid, tag, num_invalidate;
- int rc;
- cls_session = starget_to_session(scsi_target(sc->device));
- session = cls_session->dd_data;
- spin_lock_bh(&session->frwd_lock);
- if (!aborted_task || !aborted_task->sc) {
- /* we raced */
- spin_unlock_bh(&session->frwd_lock);
- return SUCCESS;
- }
- aborted_io_task = aborted_task->dd_data;
- if (!aborted_io_task->scsi_cmnd) {
- /* raced or invalid command */
- spin_unlock_bh(&session->frwd_lock);
- return SUCCESS;
- }
- spin_unlock_bh(&session->frwd_lock);
- /* Invalidate WRB Posted for this Task */
- AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
- aborted_io_task->pwrb_handle->pwrb,
- 1);
- conn = aborted_task->conn;
- beiscsi_conn = conn->dd_data;
- phba = beiscsi_conn->phba;
- /* invalidate iocb */
- cid = beiscsi_conn->beiscsi_conn_cid;
- inv_tbl = phba->inv_tbl;
- memset(inv_tbl, 0x0, sizeof(*inv_tbl));
- inv_tbl->cid = cid;
- inv_tbl->icd = aborted_io_task->psgl_handle->sgl_index;
- num_invalidate = 1;
- nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
- sizeof(struct invalidate_commands_params_in),
- &nonemb_cmd.dma);
- if (nonemb_cmd.va == NULL) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
- "BM_%d : Failed to allocate memory for"
- "mgmt_invalidate_icds\n");
- return FAILED;
- }
- nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
- tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
- cid, &nonemb_cmd);
- if (!tag) {
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
- "BM_%d : mgmt_invalidate_icds could not be"
- "submitted\n");
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- return FAILED;
- }
- rc = beiscsi_mccq_compl(phba, tag, NULL, &nonemb_cmd);
- if (rc != -EBUSY)
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- return iscsi_eh_abort(sc);
- }
- static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
- {
- struct iscsi_task *abrt_task;
- struct beiscsi_io_task *abrt_io_task;
- struct iscsi_conn *conn;
- struct beiscsi_conn *beiscsi_conn;
- struct beiscsi_hba *phba;
- struct iscsi_session *session;
- struct iscsi_cls_session *cls_session;
- struct invalidate_command_table *inv_tbl;
- struct be_dma_mem nonemb_cmd;
- unsigned int cid, tag, i, num_invalidate;
- int rc;
- /* invalidate iocbs */
- cls_session = starget_to_session(scsi_target(sc->device));
- session = cls_session->dd_data;
- spin_lock_bh(&session->frwd_lock);
- if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN) {
- spin_unlock_bh(&session->frwd_lock);
- return FAILED;
- }
- conn = session->leadconn;
- beiscsi_conn = conn->dd_data;
- phba = beiscsi_conn->phba;
- cid = beiscsi_conn->beiscsi_conn_cid;
- inv_tbl = phba->inv_tbl;
- memset(inv_tbl, 0x0, sizeof(*inv_tbl) * BE2_CMDS_PER_CXN);
- num_invalidate = 0;
- for (i = 0; i < conn->session->cmds_max; i++) {
- abrt_task = conn->session->cmds[i];
- abrt_io_task = abrt_task->dd_data;
- if (!abrt_task->sc || abrt_task->state == ISCSI_TASK_FREE)
- continue;
- if (sc->device->lun != abrt_task->sc->device->lun)
- continue;
- /* Invalidate WRB Posted for this Task */
- AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
- abrt_io_task->pwrb_handle->pwrb,
- 1);
- inv_tbl->cid = cid;
- inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index;
- num_invalidate++;
- inv_tbl++;
- }
- spin_unlock_bh(&session->frwd_lock);
- inv_tbl = phba->inv_tbl;
- nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
- sizeof(struct invalidate_commands_params_in),
- &nonemb_cmd.dma);
- if (nonemb_cmd.va == NULL) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_EH,
- "BM_%d : Failed to allocate memory for"
- "mgmt_invalidate_icds\n");
- return FAILED;
- }
- nonemb_cmd.size = sizeof(struct invalidate_commands_params_in);
- memset(nonemb_cmd.va, 0, nonemb_cmd.size);
- tag = mgmt_invalidate_icds(phba, inv_tbl, num_invalidate,
- cid, &nonemb_cmd);
- if (!tag) {
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_EH,
- "BM_%d : mgmt_invalidate_icds could not be"
- " submitted\n");
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- return FAILED;
- }
- rc = beiscsi_mccq_compl(phba, tag, NULL, &nonemb_cmd);
- if (rc != -EBUSY)
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- return iscsi_eh_device_reset(sc);
- }
- static ssize_t beiscsi_show_boot_tgt_info(void *data, int type, char *buf)
- {
- struct beiscsi_hba *phba = data;
- struct mgmt_session_info *boot_sess = &phba->boot_sess;
- struct mgmt_conn_info *boot_conn = &boot_sess->conn_list[0];
- char *str = buf;
- int rc;
- switch (type) {
- case ISCSI_BOOT_TGT_NAME:
- rc = sprintf(buf, "%.*s\n",
- (int)strlen(boot_sess->target_name),
- (char *)&boot_sess->target_name);
- break;
- case ISCSI_BOOT_TGT_IP_ADDR:
- if (boot_conn->dest_ipaddr.ip_type == 0x1)
- rc = sprintf(buf, "%pI4\n",
- (char *)&boot_conn->dest_ipaddr.addr);
- else
- rc = sprintf(str, "%pI6\n",
- (char *)&boot_conn->dest_ipaddr.addr);
- break;
- case ISCSI_BOOT_TGT_PORT:
- rc = sprintf(str, "%d\n", boot_conn->dest_port);
- break;
- case ISCSI_BOOT_TGT_CHAP_NAME:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- target_chap_name_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.target_chap_name);
- break;
- case ISCSI_BOOT_TGT_CHAP_SECRET:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- target_secret_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.target_secret);
- break;
- case ISCSI_BOOT_TGT_REV_CHAP_NAME:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- intr_chap_name_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.intr_chap_name);
- break;
- case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
- rc = sprintf(str, "%.*s\n",
- boot_conn->negotiated_login_options.auth_data.chap.
- intr_secret_length,
- (char *)&boot_conn->negotiated_login_options.
- auth_data.chap.intr_secret);
- break;
- case ISCSI_BOOT_TGT_FLAGS:
- rc = sprintf(str, "2\n");
- break;
- case ISCSI_BOOT_TGT_NIC_ASSOC:
- rc = sprintf(str, "0\n");
- break;
- default:
- rc = -ENOSYS;
- break;
- }
- return rc;
- }
- static ssize_t beiscsi_show_boot_ini_info(void *data, int type, char *buf)
- {
- struct beiscsi_hba *phba = data;
- char *str = buf;
- int rc;
- switch (type) {
- case ISCSI_BOOT_INI_INITIATOR_NAME:
- rc = sprintf(str, "%s\n", phba->boot_sess.initiator_iscsiname);
- break;
- default:
- rc = -ENOSYS;
- break;
- }
- return rc;
- }
- static ssize_t beiscsi_show_boot_eth_info(void *data, int type, char *buf)
- {
- struct beiscsi_hba *phba = data;
- char *str = buf;
- int rc;
- switch (type) {
- case ISCSI_BOOT_ETH_FLAGS:
- rc = sprintf(str, "2\n");
- break;
- case ISCSI_BOOT_ETH_INDEX:
- rc = sprintf(str, "0\n");
- break;
- case ISCSI_BOOT_ETH_MAC:
- rc = beiscsi_get_macaddr(str, phba);
- break;
- default:
- rc = -ENOSYS;
- break;
- }
- return rc;
- }
- static umode_t beiscsi_tgt_get_attr_visibility(void *data, int type)
- {
- umode_t rc;
- switch (type) {
- case ISCSI_BOOT_TGT_NAME:
- case ISCSI_BOOT_TGT_IP_ADDR:
- case ISCSI_BOOT_TGT_PORT:
- case ISCSI_BOOT_TGT_CHAP_NAME:
- case ISCSI_BOOT_TGT_CHAP_SECRET:
- case ISCSI_BOOT_TGT_REV_CHAP_NAME:
- case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
- case ISCSI_BOOT_TGT_NIC_ASSOC:
- case ISCSI_BOOT_TGT_FLAGS:
- rc = S_IRUGO;
- break;
- default:
- rc = 0;
- break;
- }
- return rc;
- }
- static umode_t beiscsi_ini_get_attr_visibility(void *data, int type)
- {
- umode_t rc;
- switch (type) {
- case ISCSI_BOOT_INI_INITIATOR_NAME:
- rc = S_IRUGO;
- break;
- default:
- rc = 0;
- break;
- }
- return rc;
- }
- static umode_t beiscsi_eth_get_attr_visibility(void *data, int type)
- {
- umode_t rc;
- switch (type) {
- case ISCSI_BOOT_ETH_FLAGS:
- case ISCSI_BOOT_ETH_MAC:
- case ISCSI_BOOT_ETH_INDEX:
- rc = S_IRUGO;
- break;
- default:
- rc = 0;
- break;
- }
- return rc;
- }
- /*------------------- PCI Driver operations and data ----------------- */
- static const struct pci_device_id beiscsi_pci_id_table[] = {
- { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
- { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
- { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
- { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
- { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
- { PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) },
- { 0 }
- };
- MODULE_DEVICE_TABLE(pci, beiscsi_pci_id_table);
- static struct scsi_host_template beiscsi_sht = {
- .module = THIS_MODULE,
- .name = "Emulex 10Gbe open-iscsi Initiator Driver",
- .proc_name = DRV_NAME,
- .queuecommand = iscsi_queuecommand,
- .change_queue_depth = scsi_change_queue_depth,
- .slave_configure = beiscsi_slave_configure,
- .target_alloc = iscsi_target_alloc,
- .eh_abort_handler = beiscsi_eh_abort,
- .eh_device_reset_handler = beiscsi_eh_device_reset,
- .eh_target_reset_handler = iscsi_eh_session_reset,
- .shost_attrs = beiscsi_attrs,
- .sg_tablesize = BEISCSI_SGLIST_ELEMENTS,
- .can_queue = BE2_IO_DEPTH,
- .this_id = -1,
- .max_sectors = BEISCSI_MAX_SECTORS,
- .cmd_per_lun = BEISCSI_CMD_PER_LUN,
- .use_clustering = ENABLE_CLUSTERING,
- .vendor_id = SCSI_NL_VID_TYPE_PCI | BE_VENDOR_ID,
- .track_queue_depth = 1,
- };
- static struct scsi_transport_template *beiscsi_scsi_transport;
- static struct beiscsi_hba *beiscsi_hba_alloc(struct pci_dev *pcidev)
- {
- struct beiscsi_hba *phba;
- struct Scsi_Host *shost;
- shost = iscsi_host_alloc(&beiscsi_sht, sizeof(*phba), 0);
- if (!shost) {
- dev_err(&pcidev->dev,
- "beiscsi_hba_alloc - iscsi_host_alloc failed\n");
- return NULL;
- }
- shost->max_id = BE2_MAX_SESSIONS;
- shost->max_channel = 0;
- shost->max_cmd_len = BEISCSI_MAX_CMD_LEN;
- shost->max_lun = BEISCSI_NUM_MAX_LUN;
- shost->transportt = beiscsi_scsi_transport;
- phba = iscsi_host_priv(shost);
- memset(phba, 0, sizeof(*phba));
- phba->shost = shost;
- phba->pcidev = pci_dev_get(pcidev);
- pci_set_drvdata(pcidev, phba);
- phba->interface_handle = 0xFFFFFFFF;
- return phba;
- }
- static void beiscsi_unmap_pci_function(struct beiscsi_hba *phba)
- {
- if (phba->csr_va) {
- iounmap(phba->csr_va);
- phba->csr_va = NULL;
- }
- if (phba->db_va) {
- iounmap(phba->db_va);
- phba->db_va = NULL;
- }
- if (phba->pci_va) {
- iounmap(phba->pci_va);
- phba->pci_va = NULL;
- }
- }
- static int beiscsi_map_pci_bars(struct beiscsi_hba *phba,
- struct pci_dev *pcidev)
- {
- u8 __iomem *addr;
- int pcicfg_reg;
- addr = ioremap_nocache(pci_resource_start(pcidev, 2),
- pci_resource_len(pcidev, 2));
- if (addr == NULL)
- return -ENOMEM;
- phba->ctrl.csr = addr;
- phba->csr_va = addr;
- phba->csr_pa.u.a64.address = pci_resource_start(pcidev, 2);
- addr = ioremap_nocache(pci_resource_start(pcidev, 4), 128 * 1024);
- if (addr == NULL)
- goto pci_map_err;
- phba->ctrl.db = addr;
- phba->db_va = addr;
- phba->db_pa.u.a64.address = pci_resource_start(pcidev, 4);
- if (phba->generation == BE_GEN2)
- pcicfg_reg = 1;
- else
- pcicfg_reg = 0;
- addr = ioremap_nocache(pci_resource_start(pcidev, pcicfg_reg),
- pci_resource_len(pcidev, pcicfg_reg));
- if (addr == NULL)
- goto pci_map_err;
- phba->ctrl.pcicfg = addr;
- phba->pci_va = addr;
- phba->pci_pa.u.a64.address = pci_resource_start(pcidev, pcicfg_reg);
- return 0;
- pci_map_err:
- beiscsi_unmap_pci_function(phba);
- return -ENOMEM;
- }
- static int beiscsi_enable_pci(struct pci_dev *pcidev)
- {
- int ret;
- ret = pci_enable_device(pcidev);
- if (ret) {
- dev_err(&pcidev->dev,
- "beiscsi_enable_pci - enable device failed\n");
- return ret;
- }
- ret = pci_request_regions(pcidev, DRV_NAME);
- if (ret) {
- dev_err(&pcidev->dev,
- "beiscsi_enable_pci - request region failed\n");
- goto pci_dev_disable;
- }
- pci_set_master(pcidev);
- ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
- if (ret) {
- ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
- if (ret) {
- dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
- goto pci_region_release;
- } else {
- ret = pci_set_consistent_dma_mask(pcidev,
- DMA_BIT_MASK(32));
- }
- } else {
- ret = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
- if (ret) {
- dev_err(&pcidev->dev, "Could not set PCI DMA Mask\n");
- goto pci_region_release;
- }
- }
- return 0;
- pci_region_release:
- pci_release_regions(pcidev);
- pci_dev_disable:
- pci_disable_device(pcidev);
- return ret;
- }
- static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
- {
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
- struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
- int status = 0;
- ctrl->pdev = pdev;
- status = beiscsi_map_pci_bars(phba, pdev);
- if (status)
- return status;
- mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
- mbox_mem_alloc->va = pci_alloc_consistent(pdev,
- mbox_mem_alloc->size,
- &mbox_mem_alloc->dma);
- if (!mbox_mem_alloc->va) {
- beiscsi_unmap_pci_function(phba);
- return -ENOMEM;
- }
- mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
- mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
- mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
- memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
- spin_lock_init(&ctrl->mbox_lock);
- spin_lock_init(&phba->ctrl.mcc_lock);
- spin_lock_init(&phba->ctrl.mcc_cq_lock);
- return status;
- }
- /**
- * beiscsi_get_params()- Set the config paramters
- * @phba: ptr device priv structure
- **/
- static void beiscsi_get_params(struct beiscsi_hba *phba)
- {
- uint32_t total_cid_count = 0;
- uint32_t total_icd_count = 0;
- uint8_t ulp_num = 0;
- total_cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
- BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- uint32_t align_mask = 0;
- uint32_t icd_post_per_page = 0;
- uint32_t icd_count_unavailable = 0;
- uint32_t icd_start = 0, icd_count = 0;
- uint32_t icd_start_align = 0, icd_count_align = 0;
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
- icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
- /* Get ICD count that can be posted on each page */
- icd_post_per_page = (PAGE_SIZE / (BE2_SGE *
- sizeof(struct iscsi_sge)));
- align_mask = (icd_post_per_page - 1);
- /* Check if icd_start is aligned ICD per page posting */
- if (icd_start % icd_post_per_page) {
- icd_start_align = ((icd_start +
- icd_post_per_page) &
- ~(align_mask));
- phba->fw_config.
- iscsi_icd_start[ulp_num] =
- icd_start_align;
- }
- icd_count_align = (icd_count & ~align_mask);
- /* ICD discarded in the process of alignment */
- if (icd_start_align)
- icd_count_unavailable = ((icd_start_align -
- icd_start) +
- (icd_count -
- icd_count_align));
- /* Updated ICD count available */
- phba->fw_config.iscsi_icd_count[ulp_num] = (icd_count -
- icd_count_unavailable);
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : Aligned ICD values\n"
- "\t ICD Start : %d\n"
- "\t ICD Count : %d\n"
- "\t ICD Discarded : %d\n",
- phba->fw_config.
- iscsi_icd_start[ulp_num],
- phba->fw_config.
- iscsi_icd_count[ulp_num],
- icd_count_unavailable);
- break;
- }
- }
- total_icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
- phba->params.ios_per_ctrl = (total_icd_count -
- (total_cid_count +
- BE2_TMFS + BE2_NOPOUT_REQ));
- phba->params.cxns_per_ctrl = total_cid_count;
- phba->params.asyncpdus_per_ctrl = total_cid_count;
- phba->params.icds_per_ctrl = total_icd_count;
- phba->params.num_sge_per_io = BE2_SGE;
- phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
- phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
- phba->params.eq_timer = 64;
- phba->params.num_eq_entries = 1024;
- phba->params.num_cq_entries = 1024;
- phba->params.wrbs_per_cxn = 256;
- }
- static void hwi_ring_eq_db(struct beiscsi_hba *phba,
- unsigned int id, unsigned int clr_interrupt,
- unsigned int num_processed,
- unsigned char rearm, unsigned char event)
- {
- u32 val = 0;
- if (rearm)
- val |= 1 << DB_EQ_REARM_SHIFT;
- if (clr_interrupt)
- val |= 1 << DB_EQ_CLR_SHIFT;
- if (event)
- val |= 1 << DB_EQ_EVNT_SHIFT;
- val |= num_processed << DB_EQ_NUM_POPPED_SHIFT;
- /* Setting lower order EQ_ID Bits */
- val |= (id & DB_EQ_RING_ID_LOW_MASK);
- /* Setting Higher order EQ_ID Bits */
- val |= (((id >> DB_EQ_HIGH_FEILD_SHIFT) &
- DB_EQ_RING_ID_HIGH_MASK)
- << DB_EQ_HIGH_SET_SHIFT);
- iowrite32(val, phba->db_va + DB_EQ_OFFSET);
- }
- /**
- * be_isr_mcc - The isr routine of the driver.
- * @irq: Not used
- * @dev_id: Pointer to host adapter structure
- */
- static irqreturn_t be_isr_mcc(int irq, void *dev_id)
- {
- struct beiscsi_hba *phba;
- struct be_eq_entry *eqe = NULL;
- struct be_queue_info *eq;
- struct be_queue_info *mcc;
- unsigned int num_eq_processed;
- struct be_eq_obj *pbe_eq;
- unsigned long flags;
- pbe_eq = dev_id;
- eq = &pbe_eq->q;
- phba = pbe_eq->phba;
- mcc = &phba->ctrl.mcc_obj.cq;
- eqe = queue_tail_node(eq);
- num_eq_processed = 0;
- while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
- & EQE_VALID_MASK) {
- if (((eqe->dw[offsetof(struct amap_eq_entry,
- resource_id) / 32] &
- EQE_RESID_MASK) >> 16) == mcc->id) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_mcc_cq = true;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
- }
- AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
- queue_tail_inc(eq);
- eqe = queue_tail_node(eq);
- num_eq_processed++;
- }
- if (pbe_eq->todo_mcc_cq)
- queue_work(phba->wq, &pbe_eq->work_cqs);
- if (num_eq_processed)
- hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 1, 1);
- return IRQ_HANDLED;
- }
- /**
- * be_isr_msix - The isr routine of the driver.
- * @irq: Not used
- * @dev_id: Pointer to host adapter structure
- */
- static irqreturn_t be_isr_msix(int irq, void *dev_id)
- {
- struct beiscsi_hba *phba;
- struct be_eq_entry *eqe = NULL;
- struct be_queue_info *eq;
- struct be_queue_info *cq;
- unsigned int num_eq_processed;
- struct be_eq_obj *pbe_eq;
- pbe_eq = dev_id;
- eq = &pbe_eq->q;
- cq = pbe_eq->cq;
- eqe = queue_tail_node(eq);
- phba = pbe_eq->phba;
- num_eq_processed = 0;
- while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
- & EQE_VALID_MASK) {
- if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
- blk_iopoll_sched(&pbe_eq->iopoll);
- AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
- queue_tail_inc(eq);
- eqe = queue_tail_node(eq);
- num_eq_processed++;
- }
- if (num_eq_processed)
- hwi_ring_eq_db(phba, eq->id, 1, num_eq_processed, 0, 1);
- return IRQ_HANDLED;
- }
- /**
- * be_isr - The isr routine of the driver.
- * @irq: Not used
- * @dev_id: Pointer to host adapter structure
- */
- static irqreturn_t be_isr(int irq, void *dev_id)
- {
- struct beiscsi_hba *phba;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_eq_entry *eqe = NULL;
- struct be_queue_info *eq;
- struct be_queue_info *mcc;
- unsigned long flags, index;
- unsigned int num_mcceq_processed, num_ioeq_processed;
- struct be_ctrl_info *ctrl;
- struct be_eq_obj *pbe_eq;
- int isr;
- phba = dev_id;
- ctrl = &phba->ctrl;
- isr = ioread32(ctrl->csr + CEV_ISR0_OFFSET +
- (PCI_FUNC(ctrl->pdev->devfn) * CEV_ISR_SIZE));
- if (!isr)
- return IRQ_NONE;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- pbe_eq = &phwi_context->be_eq[0];
- eq = &phwi_context->be_eq[0].q;
- mcc = &phba->ctrl.mcc_obj.cq;
- index = 0;
- eqe = queue_tail_node(eq);
- num_ioeq_processed = 0;
- num_mcceq_processed = 0;
- while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
- & EQE_VALID_MASK) {
- if (((eqe->dw[offsetof(struct amap_eq_entry,
- resource_id) / 32] &
- EQE_RESID_MASK) >> 16) == mcc->id) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_mcc_cq = true;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
- num_mcceq_processed++;
- } else {
- if (!blk_iopoll_sched_prep(&pbe_eq->iopoll))
- blk_iopoll_sched(&pbe_eq->iopoll);
- num_ioeq_processed++;
- }
- AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
- queue_tail_inc(eq);
- eqe = queue_tail_node(eq);
- }
- if (num_ioeq_processed || num_mcceq_processed) {
- if (pbe_eq->todo_mcc_cq)
- queue_work(phba->wq, &pbe_eq->work_cqs);
- if ((num_mcceq_processed) && (!num_ioeq_processed))
- hwi_ring_eq_db(phba, eq->id, 0,
- (num_ioeq_processed +
- num_mcceq_processed) , 1, 1);
- else
- hwi_ring_eq_db(phba, eq->id, 0,
- (num_ioeq_processed +
- num_mcceq_processed), 0, 1);
- return IRQ_HANDLED;
- } else
- return IRQ_NONE;
- }
- static int beiscsi_init_irqs(struct beiscsi_hba *phba)
- {
- struct pci_dev *pcidev = phba->pcidev;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- int ret, msix_vec, i, j;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- if (phba->msix_enabled) {
- for (i = 0; i < phba->num_cpus; i++) {
- phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME,
- GFP_KERNEL);
- if (!phba->msi_name[i]) {
- ret = -ENOMEM;
- goto free_msix_irqs;
- }
- sprintf(phba->msi_name[i], "beiscsi_%02x_%02x",
- phba->shost->host_no, i);
- msix_vec = phba->msix_entries[i].vector;
- ret = request_irq(msix_vec, be_isr_msix, 0,
- phba->msi_name[i],
- &phwi_context->be_eq[i]);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_init_irqs-Failed to"
- "register msix for i = %d\n",
- i);
- kfree(phba->msi_name[i]);
- goto free_msix_irqs;
- }
- }
- phba->msi_name[i] = kzalloc(BEISCSI_MSI_NAME, GFP_KERNEL);
- if (!phba->msi_name[i]) {
- ret = -ENOMEM;
- goto free_msix_irqs;
- }
- sprintf(phba->msi_name[i], "beiscsi_mcc_%02x",
- phba->shost->host_no);
- msix_vec = phba->msix_entries[i].vector;
- ret = request_irq(msix_vec, be_isr_mcc, 0, phba->msi_name[i],
- &phwi_context->be_eq[i]);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT ,
- "BM_%d : beiscsi_init_irqs-"
- "Failed to register beiscsi_msix_mcc\n");
- kfree(phba->msi_name[i]);
- goto free_msix_irqs;
- }
- } else {
- ret = request_irq(pcidev->irq, be_isr, IRQF_SHARED,
- "beiscsi", phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_init_irqs-"
- "Failed to register irq\\n");
- return ret;
- }
- }
- return 0;
- free_msix_irqs:
- for (j = i - 1; j >= 0; j--) {
- kfree(phba->msi_name[j]);
- msix_vec = phba->msix_entries[j].vector;
- free_irq(msix_vec, &phwi_context->be_eq[j]);
- }
- return ret;
- }
- void hwi_ring_cq_db(struct beiscsi_hba *phba,
- unsigned int id, unsigned int num_processed,
- unsigned char rearm, unsigned char event)
- {
- u32 val = 0;
- if (rearm)
- val |= 1 << DB_CQ_REARM_SHIFT;
- val |= num_processed << DB_CQ_NUM_POPPED_SHIFT;
- /* Setting lower order CQ_ID Bits */
- val |= (id & DB_CQ_RING_ID_LOW_MASK);
- /* Setting Higher order CQ_ID Bits */
- val |= (((id >> DB_CQ_HIGH_FEILD_SHIFT) &
- DB_CQ_RING_ID_HIGH_MASK)
- << DB_CQ_HIGH_SET_SHIFT);
- iowrite32(val, phba->db_va + DB_CQ_OFFSET);
- }
- static unsigned int
- beiscsi_process_async_pdu(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct pdu_base *ppdu,
- unsigned long pdu_len,
- void *pbuffer, unsigned long buf_len)
- {
- struct iscsi_conn *conn = beiscsi_conn->conn;
- struct iscsi_session *session = conn->session;
- struct iscsi_task *task;
- struct beiscsi_io_task *io_task;
- struct iscsi_hdr *login_hdr;
- switch (ppdu->dw[offsetof(struct amap_pdu_base, opcode) / 32] &
- PDUBASE_OPCODE_MASK) {
- case ISCSI_OP_NOOP_IN:
- pbuffer = NULL;
- buf_len = 0;
- break;
- case ISCSI_OP_ASYNC_EVENT:
- break;
- case ISCSI_OP_REJECT:
- WARN_ON(!pbuffer);
- WARN_ON(!(buf_len == 48));
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : In ISCSI_OP_REJECT\n");
- break;
- case ISCSI_OP_LOGIN_RSP:
- case ISCSI_OP_TEXT_RSP:
- task = conn->login_task;
- io_task = task->dd_data;
- login_hdr = (struct iscsi_hdr *)ppdu;
- login_hdr->itt = io_task->libiscsi_itt;
- break;
- default:
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Unrecognized opcode 0x%x in async msg\n",
- (ppdu->
- dw[offsetof(struct amap_pdu_base, opcode) / 32]
- & PDUBASE_OPCODE_MASK));
- return 1;
- }
- spin_lock_bh(&session->back_lock);
- __iscsi_complete_pdu(conn, (struct iscsi_hdr *)ppdu, pbuffer, buf_len);
- spin_unlock_bh(&session->back_lock);
- return 0;
- }
- static struct sgl_handle *alloc_io_sgl_handle(struct beiscsi_hba *phba)
- {
- struct sgl_handle *psgl_handle;
- if (phba->io_sgl_hndl_avbl) {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
- "BM_%d : In alloc_io_sgl_handle,"
- " io_sgl_alloc_index=%d\n",
- phba->io_sgl_alloc_index);
- psgl_handle = phba->io_sgl_hndl_base[phba->
- io_sgl_alloc_index];
- phba->io_sgl_hndl_base[phba->io_sgl_alloc_index] = NULL;
- phba->io_sgl_hndl_avbl--;
- if (phba->io_sgl_alloc_index == (phba->params.
- ios_per_ctrl - 1))
- phba->io_sgl_alloc_index = 0;
- else
- phba->io_sgl_alloc_index++;
- } else
- psgl_handle = NULL;
- return psgl_handle;
- }
- static void
- free_io_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
- {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
- "BM_%d : In free_,io_sgl_free_index=%d\n",
- phba->io_sgl_free_index);
- if (phba->io_sgl_hndl_base[phba->io_sgl_free_index]) {
- /*
- * this can happen if clean_task is called on a task that
- * failed in xmit_task or alloc_pdu.
- */
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_IO,
- "BM_%d : Double Free in IO SGL io_sgl_free_index=%d,"
- "value there=%p\n", phba->io_sgl_free_index,
- phba->io_sgl_hndl_base
- [phba->io_sgl_free_index]);
- return;
- }
- phba->io_sgl_hndl_base[phba->io_sgl_free_index] = psgl_handle;
- phba->io_sgl_hndl_avbl++;
- if (phba->io_sgl_free_index == (phba->params.ios_per_ctrl - 1))
- phba->io_sgl_free_index = 0;
- else
- phba->io_sgl_free_index++;
- }
- /**
- * alloc_wrb_handle - To allocate a wrb handle
- * @phba: The hba pointer
- * @cid: The cid to use for allocation
- * @pwrb_context: ptr to ptr to wrb context
- *
- * This happens under session_lock until submission to chip
- */
- struct wrb_handle *alloc_wrb_handle(struct beiscsi_hba *phba, unsigned int cid,
- struct hwi_wrb_context **pcontext)
- {
- struct hwi_wrb_context *pwrb_context;
- struct hwi_controller *phwi_ctrlr;
- struct wrb_handle *pwrb_handle;
- uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
- phwi_ctrlr = phba->phwi_ctrlr;
- pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
- if (pwrb_context->wrb_handles_available >= 2) {
- pwrb_handle = pwrb_context->pwrb_handle_base[
- pwrb_context->alloc_index];
- pwrb_context->wrb_handles_available--;
- if (pwrb_context->alloc_index ==
- (phba->params.wrbs_per_cxn - 1))
- pwrb_context->alloc_index = 0;
- else
- pwrb_context->alloc_index++;
- /* Return the context address */
- *pcontext = pwrb_context;
- } else
- pwrb_handle = NULL;
- return pwrb_handle;
- }
- /**
- * free_wrb_handle - To free the wrb handle back to pool
- * @phba: The hba pointer
- * @pwrb_context: The context to free from
- * @pwrb_handle: The wrb_handle to free
- *
- * This happens under session_lock until submission to chip
- */
- static void
- free_wrb_handle(struct beiscsi_hba *phba, struct hwi_wrb_context *pwrb_context,
- struct wrb_handle *pwrb_handle)
- {
- pwrb_context->pwrb_handle_base[pwrb_context->free_index] = pwrb_handle;
- pwrb_context->wrb_handles_available++;
- if (pwrb_context->free_index == (phba->params.wrbs_per_cxn - 1))
- pwrb_context->free_index = 0;
- else
- pwrb_context->free_index++;
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : FREE WRB: pwrb_handle=%p free_index=0x%x"
- "wrb_handles_available=%d\n",
- pwrb_handle, pwrb_context->free_index,
- pwrb_context->wrb_handles_available);
- }
- static struct sgl_handle *alloc_mgmt_sgl_handle(struct beiscsi_hba *phba)
- {
- struct sgl_handle *psgl_handle;
- if (phba->eh_sgl_hndl_avbl) {
- psgl_handle = phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index];
- phba->eh_sgl_hndl_base[phba->eh_sgl_alloc_index] = NULL;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
- "BM_%d : mgmt_sgl_alloc_index=%d=0x%x\n",
- phba->eh_sgl_alloc_index,
- phba->eh_sgl_alloc_index);
- phba->eh_sgl_hndl_avbl--;
- if (phba->eh_sgl_alloc_index ==
- (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl -
- 1))
- phba->eh_sgl_alloc_index = 0;
- else
- phba->eh_sgl_alloc_index++;
- } else
- psgl_handle = NULL;
- return psgl_handle;
- }
- void
- free_mgmt_sgl_handle(struct beiscsi_hba *phba, struct sgl_handle *psgl_handle)
- {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
- "BM_%d : In free_mgmt_sgl_handle,"
- "eh_sgl_free_index=%d\n",
- phba->eh_sgl_free_index);
- if (phba->eh_sgl_hndl_base[phba->eh_sgl_free_index]) {
- /*
- * this can happen if clean_task is called on a task that
- * failed in xmit_task or alloc_pdu.
- */
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
- "BM_%d : Double Free in eh SGL ,"
- "eh_sgl_free_index=%d\n",
- phba->eh_sgl_free_index);
- return;
- }
- phba->eh_sgl_hndl_base[phba->eh_sgl_free_index] = psgl_handle;
- phba->eh_sgl_hndl_avbl++;
- if (phba->eh_sgl_free_index ==
- (phba->params.icds_per_ctrl - phba->params.ios_per_ctrl - 1))
- phba->eh_sgl_free_index = 0;
- else
- phba->eh_sgl_free_index++;
- }
- static void
- be_complete_io(struct beiscsi_conn *beiscsi_conn,
- struct iscsi_task *task,
- struct common_sol_cqe *csol_cqe)
- {
- struct beiscsi_io_task *io_task = task->dd_data;
- struct be_status_bhs *sts_bhs =
- (struct be_status_bhs *)io_task->cmd_bhs;
- struct iscsi_conn *conn = beiscsi_conn->conn;
- unsigned char *sense;
- u32 resid = 0, exp_cmdsn, max_cmdsn;
- u8 rsp, status, flags;
- exp_cmdsn = csol_cqe->exp_cmdsn;
- max_cmdsn = (csol_cqe->exp_cmdsn +
- csol_cqe->cmd_wnd - 1);
- rsp = csol_cqe->i_resp;
- status = csol_cqe->i_sts;
- flags = csol_cqe->i_flags;
- resid = csol_cqe->res_cnt;
- if (!task->sc) {
- if (io_task->scsi_cmnd) {
- scsi_dma_unmap(io_task->scsi_cmnd);
- io_task->scsi_cmnd = NULL;
- }
- return;
- }
- task->sc->result = (DID_OK << 16) | status;
- if (rsp != ISCSI_STATUS_CMD_COMPLETED) {
- task->sc->result = DID_ERROR << 16;
- goto unmap;
- }
- /* bidi not initially supported */
- if (flags & (ISCSI_FLAG_CMD_UNDERFLOW | ISCSI_FLAG_CMD_OVERFLOW)) {
- if (!status && (flags & ISCSI_FLAG_CMD_OVERFLOW))
- task->sc->result = DID_ERROR << 16;
- if (flags & ISCSI_FLAG_CMD_UNDERFLOW) {
- scsi_set_resid(task->sc, resid);
- if (!status && (scsi_bufflen(task->sc) - resid <
- task->sc->underflow))
- task->sc->result = DID_ERROR << 16;
- }
- }
- if (status == SAM_STAT_CHECK_CONDITION) {
- u16 sense_len;
- unsigned short *slen = (unsigned short *)sts_bhs->sense_info;
- sense = sts_bhs->sense_info + sizeof(unsigned short);
- sense_len = be16_to_cpu(*slen);
- memcpy(task->sc->sense_buffer, sense,
- min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
- }
- if (io_task->cmd_bhs->iscsi_hdr.flags & ISCSI_FLAG_CMD_READ)
- conn->rxdata_octets += resid;
- unmap:
- if (io_task->scsi_cmnd) {
- scsi_dma_unmap(io_task->scsi_cmnd);
- io_task->scsi_cmnd = NULL;
- }
- iscsi_complete_scsi_task(task, exp_cmdsn, max_cmdsn);
- }
- static void
- be_complete_logout(struct beiscsi_conn *beiscsi_conn,
- struct iscsi_task *task,
- struct common_sol_cqe *csol_cqe)
- {
- struct iscsi_logout_rsp *hdr;
- struct beiscsi_io_task *io_task = task->dd_data;
- struct iscsi_conn *conn = beiscsi_conn->conn;
- hdr = (struct iscsi_logout_rsp *)task->hdr;
- hdr->opcode = ISCSI_OP_LOGOUT_RSP;
- hdr->t2wait = 5;
- hdr->t2retain = 0;
- hdr->flags = csol_cqe->i_flags;
- hdr->response = csol_cqe->i_resp;
- hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
- hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
- csol_cqe->cmd_wnd - 1);
- hdr->dlength[0] = 0;
- hdr->dlength[1] = 0;
- hdr->dlength[2] = 0;
- hdr->hlength = 0;
- hdr->itt = io_task->libiscsi_itt;
- __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
- }
- static void
- be_complete_tmf(struct beiscsi_conn *beiscsi_conn,
- struct iscsi_task *task,
- struct common_sol_cqe *csol_cqe)
- {
- struct iscsi_tm_rsp *hdr;
- struct iscsi_conn *conn = beiscsi_conn->conn;
- struct beiscsi_io_task *io_task = task->dd_data;
- hdr = (struct iscsi_tm_rsp *)task->hdr;
- hdr->opcode = ISCSI_OP_SCSI_TMFUNC_RSP;
- hdr->flags = csol_cqe->i_flags;
- hdr->response = csol_cqe->i_resp;
- hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
- hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
- csol_cqe->cmd_wnd - 1);
- hdr->itt = io_task->libiscsi_itt;
- __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
- }
- static void
- hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba, struct sol_cqe *psol)
- {
- struct hwi_wrb_context *pwrb_context;
- struct wrb_handle *pwrb_handle = NULL;
- struct hwi_controller *phwi_ctrlr;
- struct iscsi_task *task;
- struct beiscsi_io_task *io_task;
- uint16_t wrb_index, cid, cri_index;
- phwi_ctrlr = phba->phwi_ctrlr;
- if (is_chip_be2_be3r(phba)) {
- wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe,
- wrb_idx, psol);
- cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe,
- cid, psol);
- } else {
- wrb_index = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2,
- wrb_idx, psol);
- cid = AMAP_GET_BITS(struct amap_it_dmsg_cqe_v2,
- cid, psol);
- }
- cri_index = BE_GET_CRI_FROM_CID(cid);
- pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
- pwrb_handle = pwrb_context->pwrb_handle_basestd[wrb_index];
- task = pwrb_handle->pio_handle;
- io_task = task->dd_data;
- memset(io_task->pwrb_handle->pwrb, 0, sizeof(struct iscsi_wrb));
- iscsi_put_task(task);
- }
- static void
- be_complete_nopin_resp(struct beiscsi_conn *beiscsi_conn,
- struct iscsi_task *task,
- struct common_sol_cqe *csol_cqe)
- {
- struct iscsi_nopin *hdr;
- struct iscsi_conn *conn = beiscsi_conn->conn;
- struct beiscsi_io_task *io_task = task->dd_data;
- hdr = (struct iscsi_nopin *)task->hdr;
- hdr->flags = csol_cqe->i_flags;
- hdr->exp_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn);
- hdr->max_cmdsn = cpu_to_be32(csol_cqe->exp_cmdsn +
- csol_cqe->cmd_wnd - 1);
- hdr->opcode = ISCSI_OP_NOOP_IN;
- hdr->itt = io_task->libiscsi_itt;
- __iscsi_complete_pdu(conn, (struct iscsi_hdr *)hdr, NULL, 0);
- }
- static void adapter_get_sol_cqe(struct beiscsi_hba *phba,
- struct sol_cqe *psol,
- struct common_sol_cqe *csol_cqe)
- {
- if (is_chip_be2_be3r(phba)) {
- csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe,
- i_exp_cmd_sn, psol);
- csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe,
- i_res_cnt, psol);
- csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe,
- i_cmd_wnd, psol);
- csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe,
- wrb_index, psol);
- csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe,
- cid, psol);
- csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe,
- hw_sts, psol);
- csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe,
- i_resp, psol);
- csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe,
- i_sts, psol);
- csol_cqe->i_flags = AMAP_GET_BITS(struct amap_sol_cqe,
- i_flags, psol);
- } else {
- csol_cqe->exp_cmdsn = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- i_exp_cmd_sn, psol);
- csol_cqe->res_cnt = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- i_res_cnt, psol);
- csol_cqe->wrb_index = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- wrb_index, psol);
- csol_cqe->cid = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- cid, psol);
- csol_cqe->hw_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- hw_sts, psol);
- csol_cqe->cmd_wnd = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- i_cmd_wnd, psol);
- if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
- cmd_cmpl, psol))
- csol_cqe->i_sts = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- i_sts, psol);
- else
- csol_cqe->i_resp = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- i_sts, psol);
- if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
- u, psol))
- csol_cqe->i_flags = ISCSI_FLAG_CMD_UNDERFLOW;
- if (AMAP_GET_BITS(struct amap_sol_cqe_v2,
- o, psol))
- csol_cqe->i_flags |= ISCSI_FLAG_CMD_OVERFLOW;
- }
- }
- static void hwi_complete_cmd(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba, struct sol_cqe *psol)
- {
- struct hwi_wrb_context *pwrb_context;
- struct wrb_handle *pwrb_handle;
- struct iscsi_wrb *pwrb = NULL;
- struct hwi_controller *phwi_ctrlr;
- struct iscsi_task *task;
- unsigned int type;
- struct iscsi_conn *conn = beiscsi_conn->conn;
- struct iscsi_session *session = conn->session;
- struct common_sol_cqe csol_cqe = {0};
- uint16_t cri_index = 0;
- phwi_ctrlr = phba->phwi_ctrlr;
- /* Copy the elements to a common structure */
- adapter_get_sol_cqe(phba, psol, &csol_cqe);
- cri_index = BE_GET_CRI_FROM_CID(csol_cqe.cid);
- pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
- pwrb_handle = pwrb_context->pwrb_handle_basestd[
- csol_cqe.wrb_index];
- task = pwrb_handle->pio_handle;
- pwrb = pwrb_handle->pwrb;
- type = ((struct beiscsi_io_task *)task->dd_data)->wrb_type;
- spin_lock_bh(&session->back_lock);
- switch (type) {
- case HWH_TYPE_IO:
- case HWH_TYPE_IO_RD:
- if ((task->hdr->opcode & ISCSI_OPCODE_MASK) ==
- ISCSI_OP_NOOP_OUT)
- be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe);
- else
- be_complete_io(beiscsi_conn, task, &csol_cqe);
- break;
- case HWH_TYPE_LOGOUT:
- if ((task->hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT)
- be_complete_logout(beiscsi_conn, task, &csol_cqe);
- else
- be_complete_tmf(beiscsi_conn, task, &csol_cqe);
- break;
- case HWH_TYPE_LOGIN:
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d :\t\t No HWH_TYPE_LOGIN Expected in"
- " hwi_complete_cmd- Solicited path\n");
- break;
- case HWH_TYPE_NOP:
- be_complete_nopin_resp(beiscsi_conn, task, &csol_cqe);
- break;
- default:
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : In hwi_complete_cmd, unknown type = %d"
- "wrb_index 0x%x CID 0x%x\n", type,
- csol_cqe.wrb_index,
- csol_cqe.cid);
- break;
- }
- spin_unlock_bh(&session->back_lock);
- }
- static struct list_head *hwi_get_async_busy_list(struct hwi_async_pdu_context
- *pasync_ctx, unsigned int is_header,
- unsigned int host_write_ptr)
- {
- if (is_header)
- return &pasync_ctx->async_entry[host_write_ptr].
- header_busy_list;
- else
- return &pasync_ctx->async_entry[host_write_ptr].data_busy_list;
- }
- static struct async_pdu_handle *
- hwi_get_async_handle(struct beiscsi_hba *phba,
- struct beiscsi_conn *beiscsi_conn,
- struct hwi_async_pdu_context *pasync_ctx,
- struct i_t_dpdu_cqe *pdpdu_cqe, unsigned int *pcq_index)
- {
- struct be_bus_address phys_addr;
- struct list_head *pbusy_list;
- struct async_pdu_handle *pasync_handle = NULL;
- unsigned char is_header = 0;
- unsigned int index, dpl;
- if (is_chip_be2_be3r(phba)) {
- dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
- dpl, pdpdu_cqe);
- index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe,
- index, pdpdu_cqe);
- } else {
- dpl = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
- dpl, pdpdu_cqe);
- index = AMAP_GET_BITS(struct amap_i_t_dpdu_cqe_v2,
- index, pdpdu_cqe);
- }
- phys_addr.u.a32.address_lo =
- (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
- db_addr_lo) / 32] - dpl);
- phys_addr.u.a32.address_hi =
- pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
- db_addr_hi) / 32];
- phys_addr.u.a64.address =
- *((unsigned long long *)(&phys_addr.u.a64.address));
- switch (pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe, code) / 32]
- & PDUCQE_CODE_MASK) {
- case UNSOL_HDR_NOTIFY:
- is_header = 1;
- pbusy_list = hwi_get_async_busy_list(pasync_ctx,
- is_header, index);
- break;
- case UNSOL_DATA_NOTIFY:
- pbusy_list = hwi_get_async_busy_list(pasync_ctx,
- is_header, index);
- break;
- default:
- pbusy_list = NULL;
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Unexpected code=%d\n",
- pdpdu_cqe->dw[offsetof(struct amap_i_t_dpdu_cqe,
- code) / 32] & PDUCQE_CODE_MASK);
- return NULL;
- }
- WARN_ON(list_empty(pbusy_list));
- list_for_each_entry(pasync_handle, pbusy_list, link) {
- if (pasync_handle->pa.u.a64.address == phys_addr.u.a64.address)
- break;
- }
- WARN_ON(!pasync_handle);
- pasync_handle->cri = BE_GET_ASYNC_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
- pasync_handle->is_header = is_header;
- pasync_handle->buffer_len = dpl;
- *pcq_index = index;
- return pasync_handle;
- }
- static unsigned int
- hwi_update_async_writables(struct beiscsi_hba *phba,
- struct hwi_async_pdu_context *pasync_ctx,
- unsigned int is_header, unsigned int cq_index)
- {
- struct list_head *pbusy_list;
- struct async_pdu_handle *pasync_handle;
- unsigned int num_entries, writables = 0;
- unsigned int *pep_read_ptr, *pwritables;
- num_entries = pasync_ctx->num_entries;
- if (is_header) {
- pep_read_ptr = &pasync_ctx->async_header.ep_read_ptr;
- pwritables = &pasync_ctx->async_header.writables;
- } else {
- pep_read_ptr = &pasync_ctx->async_data.ep_read_ptr;
- pwritables = &pasync_ctx->async_data.writables;
- }
- while ((*pep_read_ptr) != cq_index) {
- (*pep_read_ptr)++;
- *pep_read_ptr = (*pep_read_ptr) % num_entries;
- pbusy_list = hwi_get_async_busy_list(pasync_ctx, is_header,
- *pep_read_ptr);
- if (writables == 0)
- WARN_ON(list_empty(pbusy_list));
- if (!list_empty(pbusy_list)) {
- pasync_handle = list_entry(pbusy_list->next,
- struct async_pdu_handle,
- link);
- WARN_ON(!pasync_handle);
- pasync_handle->consumed = 1;
- }
- writables++;
- }
- if (!writables) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : Duplicate notification received - index 0x%x!!\n",
- cq_index);
- WARN_ON(1);
- }
- *pwritables = *pwritables + writables;
- return 0;
- }
- static void hwi_free_async_msg(struct beiscsi_hba *phba,
- struct hwi_async_pdu_context *pasync_ctx,
- unsigned int cri)
- {
- struct async_pdu_handle *pasync_handle, *tmp_handle;
- struct list_head *plist;
- plist = &pasync_ctx->async_entry[cri].wait_queue.list;
- list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
- list_del(&pasync_handle->link);
- if (pasync_handle->is_header) {
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_header.free_list);
- pasync_ctx->async_header.free_entries++;
- } else {
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_data.free_list);
- pasync_ctx->async_data.free_entries++;
- }
- }
- INIT_LIST_HEAD(&pasync_ctx->async_entry[cri].wait_queue.list);
- pasync_ctx->async_entry[cri].wait_queue.hdr_received = 0;
- pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
- }
- static struct phys_addr *
- hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx,
- unsigned int is_header, unsigned int host_write_ptr)
- {
- struct phys_addr *pasync_sge = NULL;
- if (is_header)
- pasync_sge = pasync_ctx->async_header.ring_base;
- else
- pasync_sge = pasync_ctx->async_data.ring_base;
- return pasync_sge + host_write_ptr;
- }
- static void hwi_post_async_buffers(struct beiscsi_hba *phba,
- unsigned int is_header, uint8_t ulp_num)
- {
- struct hwi_controller *phwi_ctrlr;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_handle;
- struct list_head *pfree_link, *pbusy_list;
- struct phys_addr *pasync_sge;
- unsigned int ring_id, num_entries;
- unsigned int host_write_num, doorbell_offset;
- unsigned int writables;
- unsigned int i = 0;
- u32 doorbell = 0;
- phwi_ctrlr = phba->phwi_ctrlr;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num);
- num_entries = pasync_ctx->num_entries;
- if (is_header) {
- writables = min(pasync_ctx->async_header.writables,
- pasync_ctx->async_header.free_entries);
- pfree_link = pasync_ctx->async_header.free_list.next;
- host_write_num = pasync_ctx->async_header.host_write_ptr;
- ring_id = phwi_ctrlr->default_pdu_hdr[ulp_num].id;
- doorbell_offset = phwi_ctrlr->default_pdu_hdr[ulp_num].
- doorbell_offset;
- } else {
- writables = min(pasync_ctx->async_data.writables,
- pasync_ctx->async_data.free_entries);
- pfree_link = pasync_ctx->async_data.free_list.next;
- host_write_num = pasync_ctx->async_data.host_write_ptr;
- ring_id = phwi_ctrlr->default_pdu_data[ulp_num].id;
- doorbell_offset = phwi_ctrlr->default_pdu_data[ulp_num].
- doorbell_offset;
- }
- writables = (writables / 8) * 8;
- if (writables) {
- for (i = 0; i < writables; i++) {
- pbusy_list =
- hwi_get_async_busy_list(pasync_ctx, is_header,
- host_write_num);
- pasync_handle =
- list_entry(pfree_link, struct async_pdu_handle,
- link);
- WARN_ON(!pasync_handle);
- pasync_handle->consumed = 0;
- pfree_link = pfree_link->next;
- pasync_sge = hwi_get_ring_address(pasync_ctx,
- is_header, host_write_num);
- pasync_sge->hi = pasync_handle->pa.u.a32.address_lo;
- pasync_sge->lo = pasync_handle->pa.u.a32.address_hi;
- list_move(&pasync_handle->link, pbusy_list);
- host_write_num++;
- host_write_num = host_write_num % num_entries;
- }
- if (is_header) {
- pasync_ctx->async_header.host_write_ptr =
- host_write_num;
- pasync_ctx->async_header.free_entries -= writables;
- pasync_ctx->async_header.writables -= writables;
- pasync_ctx->async_header.busy_entries += writables;
- } else {
- pasync_ctx->async_data.host_write_ptr = host_write_num;
- pasync_ctx->async_data.free_entries -= writables;
- pasync_ctx->async_data.writables -= writables;
- pasync_ctx->async_data.busy_entries += writables;
- }
- doorbell |= ring_id & DB_DEF_PDU_RING_ID_MASK;
- doorbell |= 1 << DB_DEF_PDU_REARM_SHIFT;
- doorbell |= 0 << DB_DEF_PDU_EVENT_SHIFT;
- doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK)
- << DB_DEF_PDU_CQPROC_SHIFT;
- iowrite32(doorbell, phba->db_va + doorbell_offset);
- }
- }
- static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
- struct beiscsi_conn *beiscsi_conn,
- struct i_t_dpdu_cqe *pdpdu_cqe)
- {
- struct hwi_controller *phwi_ctrlr;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_handle = NULL;
- unsigned int cq_index = -1;
- uint16_t cri_index = BE_GET_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
- phwi_ctrlr = phba->phwi_ctrlr;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- cri_index));
- pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
- pdpdu_cqe, &cq_index);
- BUG_ON(pasync_handle->is_header != 0);
- if (pasync_handle->consumed == 0)
- hwi_update_async_writables(phba, pasync_ctx,
- pasync_handle->is_header, cq_index);
- hwi_free_async_msg(phba, pasync_ctx, pasync_handle->cri);
- hwi_post_async_buffers(phba, pasync_handle->is_header,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- cri_index));
- }
- static unsigned int
- hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct hwi_async_pdu_context *pasync_ctx, unsigned short cri)
- {
- struct list_head *plist;
- struct async_pdu_handle *pasync_handle;
- void *phdr = NULL;
- unsigned int hdr_len = 0, buf_len = 0;
- unsigned int status, index = 0, offset = 0;
- void *pfirst_buffer = NULL;
- unsigned int num_buf = 0;
- plist = &pasync_ctx->async_entry[cri].wait_queue.list;
- list_for_each_entry(pasync_handle, plist, link) {
- if (index == 0) {
- phdr = pasync_handle->pbuffer;
- hdr_len = pasync_handle->buffer_len;
- } else {
- buf_len = pasync_handle->buffer_len;
- if (!num_buf) {
- pfirst_buffer = pasync_handle->pbuffer;
- num_buf++;
- }
- memcpy(pfirst_buffer + offset,
- pasync_handle->pbuffer, buf_len);
- offset += buf_len;
- }
- index++;
- }
- status = beiscsi_process_async_pdu(beiscsi_conn, phba,
- phdr, hdr_len, pfirst_buffer,
- offset);
- hwi_free_async_msg(phba, pasync_ctx, cri);
- return 0;
- }
- static unsigned int
- hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct async_pdu_handle *pasync_handle)
- {
- struct hwi_async_pdu_context *pasync_ctx;
- struct hwi_controller *phwi_ctrlr;
- unsigned int bytes_needed = 0, status = 0;
- unsigned short cri = pasync_handle->cri;
- struct pdu_base *ppdu;
- phwi_ctrlr = phba->phwi_ctrlr;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- BE_GET_CRI_FROM_CID(beiscsi_conn->
- beiscsi_conn_cid)));
- list_del(&pasync_handle->link);
- if (pasync_handle->is_header) {
- pasync_ctx->async_header.busy_entries--;
- if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
- hwi_free_async_msg(phba, pasync_ctx, cri);
- BUG();
- }
- pasync_ctx->async_entry[cri].wait_queue.bytes_received = 0;
- pasync_ctx->async_entry[cri].wait_queue.hdr_received = 1;
- pasync_ctx->async_entry[cri].wait_queue.hdr_len =
- (unsigned short)pasync_handle->buffer_len;
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_entry[cri].wait_queue.list);
- ppdu = pasync_handle->pbuffer;
- bytes_needed = ((((ppdu->dw[offsetof(struct amap_pdu_base,
- data_len_hi) / 32] & PDUBASE_DATALENHI_MASK) << 8) &
- 0xFFFF0000) | ((be16_to_cpu((ppdu->
- dw[offsetof(struct amap_pdu_base, data_len_lo) / 32]
- & PDUBASE_DATALENLO_MASK) >> 16)) & 0x0000FFFF));
- if (status == 0) {
- pasync_ctx->async_entry[cri].wait_queue.bytes_needed =
- bytes_needed;
- if (bytes_needed == 0)
- status = hwi_fwd_async_msg(beiscsi_conn, phba,
- pasync_ctx, cri);
- }
- } else {
- pasync_ctx->async_data.busy_entries--;
- if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
- list_add_tail(&pasync_handle->link,
- &pasync_ctx->async_entry[cri].wait_queue.
- list);
- pasync_ctx->async_entry[cri].wait_queue.
- bytes_received +=
- (unsigned short)pasync_handle->buffer_len;
- if (pasync_ctx->async_entry[cri].wait_queue.
- bytes_received >=
- pasync_ctx->async_entry[cri].wait_queue.
- bytes_needed)
- status = hwi_fwd_async_msg(beiscsi_conn, phba,
- pasync_ctx, cri);
- }
- }
- return status;
- }
- static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_hba *phba,
- struct i_t_dpdu_cqe *pdpdu_cqe)
- {
- struct hwi_controller *phwi_ctrlr;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_handle = NULL;
- unsigned int cq_index = -1;
- uint16_t cri_index = BE_GET_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
- phwi_ctrlr = phba->phwi_ctrlr;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
- BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
- cri_index));
- pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
- pdpdu_cqe, &cq_index);
- if (pasync_handle->consumed == 0)
- hwi_update_async_writables(phba, pasync_ctx,
- pasync_handle->is_header, cq_index);
- hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
- hwi_post_async_buffers(phba, pasync_handle->is_header,
- BEISCSI_GET_ULP_FROM_CRI(
- phwi_ctrlr, cri_index));
- }
- static void beiscsi_process_mcc_isr(struct beiscsi_hba *phba)
- {
- struct be_queue_info *mcc_cq;
- struct be_mcc_compl *mcc_compl;
- unsigned int num_processed = 0;
- mcc_cq = &phba->ctrl.mcc_obj.cq;
- mcc_compl = queue_tail_node(mcc_cq);
- mcc_compl->flags = le32_to_cpu(mcc_compl->flags);
- while (mcc_compl->flags & CQE_FLAGS_VALID_MASK) {
- if (num_processed >= 32) {
- hwi_ring_cq_db(phba, mcc_cq->id,
- num_processed, 0, 0);
- num_processed = 0;
- }
- if (mcc_compl->flags & CQE_FLAGS_ASYNC_MASK) {
- /* Interpret flags as an async trailer */
- if (is_link_state_evt(mcc_compl->flags))
- /* Interpret compl as a async link evt */
- beiscsi_async_link_state_process(phba,
- (struct be_async_event_link_state *) mcc_compl);
- else {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_MBOX,
- "BM_%d : Unsupported Async Event, flags"
- " = 0x%08x\n",
- mcc_compl->flags);
- if (phba->state & BE_ADAPTER_LINK_UP) {
- phba->state |= BE_ADAPTER_CHECK_BOOT;
- phba->get_boot = BE_GET_BOOT_RETRIES;
- }
- }
- } else if (mcc_compl->flags & CQE_FLAGS_COMPLETED_MASK) {
- be_mcc_compl_process_isr(&phba->ctrl, mcc_compl);
- atomic_dec(&phba->ctrl.mcc_obj.q.used);
- }
- mcc_compl->flags = 0;
- queue_tail_inc(mcc_cq);
- mcc_compl = queue_tail_node(mcc_cq);
- mcc_compl->flags = le32_to_cpu(mcc_compl->flags);
- num_processed++;
- }
- if (num_processed > 0)
- hwi_ring_cq_db(phba, mcc_cq->id, num_processed, 1, 0);
- }
- /**
- * beiscsi_process_cq()- Process the Completion Queue
- * @pbe_eq: Event Q on which the Completion has come
- *
- * return
- * Number of Completion Entries processed.
- **/
- unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
- {
- struct be_queue_info *cq;
- struct sol_cqe *sol;
- struct dmsg_cqe *dmsg;
- unsigned int num_processed = 0;
- unsigned int tot_nump = 0;
- unsigned short code = 0, cid = 0;
- uint16_t cri_index = 0;
- struct beiscsi_conn *beiscsi_conn;
- struct beiscsi_endpoint *beiscsi_ep;
- struct iscsi_endpoint *ep;
- struct beiscsi_hba *phba;
- cq = pbe_eq->cq;
- sol = queue_tail_node(cq);
- phba = pbe_eq->phba;
- while (sol->dw[offsetof(struct amap_sol_cqe, valid) / 32] &
- CQE_VALID_MASK) {
- be_dws_le_to_cpu(sol, sizeof(struct sol_cqe));
- code = (sol->dw[offsetof(struct amap_sol_cqe, code) /
- 32] & CQE_CODE_MASK);
- /* Get the CID */
- if (is_chip_be2_be3r(phba)) {
- cid = AMAP_GET_BITS(struct amap_sol_cqe, cid, sol);
- } else {
- if ((code == DRIVERMSG_NOTIFY) ||
- (code == UNSOL_HDR_NOTIFY) ||
- (code == UNSOL_DATA_NOTIFY))
- cid = AMAP_GET_BITS(
- struct amap_i_t_dpdu_cqe_v2,
- cid, sol);
- else
- cid = AMAP_GET_BITS(struct amap_sol_cqe_v2,
- cid, sol);
- }
- cri_index = BE_GET_CRI_FROM_CID(cid);
- ep = phba->ep_array[cri_index];
- if (ep == NULL) {
- /* connection has already been freed
- * just move on to next one
- */
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : proc cqe of disconn ep: cid %d\n",
- cid);
- goto proc_next_cqe;
- }
- beiscsi_ep = ep->dd_data;
- beiscsi_conn = beiscsi_ep->conn;
- if (num_processed >= 32) {
- hwi_ring_cq_db(phba, cq->id,
- num_processed, 0, 0);
- tot_nump += num_processed;
- num_processed = 0;
- }
- switch (code) {
- case SOL_CMD_COMPLETE:
- hwi_complete_cmd(beiscsi_conn, phba, sol);
- break;
- case DRIVERMSG_NOTIFY:
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Received %s[%d] on CID : %d\n",
- cqe_desc[code], code, cid);
- dmsg = (struct dmsg_cqe *)sol;
- hwi_complete_drvr_msgs(beiscsi_conn, phba, sol);
- break;
- case UNSOL_HDR_NOTIFY:
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Received %s[%d] on CID : %d\n",
- cqe_desc[code], code, cid);
- spin_lock_bh(&phba->async_pdu_lock);
- hwi_process_default_pdu_ring(beiscsi_conn, phba,
- (struct i_t_dpdu_cqe *)sol);
- spin_unlock_bh(&phba->async_pdu_lock);
- break;
- case UNSOL_DATA_NOTIFY:
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : Received %s[%d] on CID : %d\n",
- cqe_desc[code], code, cid);
- spin_lock_bh(&phba->async_pdu_lock);
- hwi_process_default_pdu_ring(beiscsi_conn, phba,
- (struct i_t_dpdu_cqe *)sol);
- spin_unlock_bh(&phba->async_pdu_lock);
- break;
- case CXN_INVALIDATE_INDEX_NOTIFY:
- case CMD_INVALIDATED_NOTIFY:
- case CXN_INVALIDATE_NOTIFY:
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Ignoring %s[%d] on CID : %d\n",
- cqe_desc[code], code, cid);
- break;
- case SOL_CMD_KILLED_DATA_DIGEST_ERR:
- case CMD_KILLED_INVALID_STATSN_RCVD:
- case CMD_KILLED_INVALID_R2T_RCVD:
- case CMD_CXN_KILLED_LUN_INVALID:
- case CMD_CXN_KILLED_ICD_INVALID:
- case CMD_CXN_KILLED_ITT_INVALID:
- case CMD_CXN_KILLED_SEQ_OUTOFORDER:
- case CMD_CXN_KILLED_INVALID_DATASN_RCVD:
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : Cmd Notification %s[%d] on CID : %d\n",
- cqe_desc[code], code, cid);
- break;
- case UNSOL_DATA_DIGEST_ERROR_NOTIFY:
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Dropping %s[%d] on DPDU ring on CID : %d\n",
- cqe_desc[code], code, cid);
- spin_lock_bh(&phba->async_pdu_lock);
- hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
- (struct i_t_dpdu_cqe *) sol);
- spin_unlock_bh(&phba->async_pdu_lock);
- break;
- case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
- case CXN_KILLED_BURST_LEN_MISMATCH:
- case CXN_KILLED_AHS_RCVD:
- case CXN_KILLED_HDR_DIGEST_ERR:
- case CXN_KILLED_UNKNOWN_HDR:
- case CXN_KILLED_STALE_ITT_TTT_RCVD:
- case CXN_KILLED_INVALID_ITT_TTT_RCVD:
- case CXN_KILLED_TIMED_OUT:
- case CXN_KILLED_FIN_RCVD:
- case CXN_KILLED_RST_SENT:
- case CXN_KILLED_RST_RCVD:
- case CXN_KILLED_BAD_UNSOL_PDU_RCVD:
- case CXN_KILLED_BAD_WRB_INDEX_ERROR:
- case CXN_KILLED_OVER_RUN_RESIDUAL:
- case CXN_KILLED_UNDER_RUN_RESIDUAL:
- case CXN_KILLED_CMND_DATA_NOT_ON_SAME_CONN:
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Event %s[%d] received on CID : %d\n",
- cqe_desc[code], code, cid);
- if (beiscsi_conn)
- iscsi_conn_failure(beiscsi_conn->conn,
- ISCSI_ERR_CONN_FAILED);
- break;
- default:
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Invalid CQE Event Received Code : %d"
- "CID 0x%x...\n",
- code, cid);
- break;
- }
- proc_next_cqe:
- AMAP_SET_BITS(struct amap_sol_cqe, valid, sol, 0);
- queue_tail_inc(cq);
- sol = queue_tail_node(cq);
- num_processed++;
- }
- if (num_processed > 0) {
- tot_nump += num_processed;
- hwi_ring_cq_db(phba, cq->id, num_processed, 1, 0);
- }
- return tot_nump;
- }
- void beiscsi_process_all_cqs(struct work_struct *work)
- {
- unsigned long flags;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct beiscsi_hba *phba;
- struct be_eq_obj *pbe_eq =
- container_of(work, struct be_eq_obj, work_cqs);
- phba = pbe_eq->phba;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- if (pbe_eq->todo_mcc_cq) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_mcc_cq = false;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
- beiscsi_process_mcc_isr(phba);
- }
- if (pbe_eq->todo_cq) {
- spin_lock_irqsave(&phba->isr_lock, flags);
- pbe_eq->todo_cq = false;
- spin_unlock_irqrestore(&phba->isr_lock, flags);
- beiscsi_process_cq(pbe_eq);
- }
- /* rearm EQ for further interrupts */
- hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
- }
- static int be_iopoll(struct blk_iopoll *iop, int budget)
- {
- unsigned int ret;
- struct beiscsi_hba *phba;
- struct be_eq_obj *pbe_eq;
- pbe_eq = container_of(iop, struct be_eq_obj, iopoll);
- ret = beiscsi_process_cq(pbe_eq);
- pbe_eq->cq_count += ret;
- if (ret < budget) {
- phba = pbe_eq->phba;
- blk_iopoll_complete(iop);
- beiscsi_log(phba, KERN_INFO,
- BEISCSI_LOG_CONFIG | BEISCSI_LOG_IO,
- "BM_%d : rearm pbe_eq->q.id =%d\n",
- pbe_eq->q.id);
- hwi_ring_eq_db(phba, pbe_eq->q.id, 0, 0, 1, 1);
- }
- return ret;
- }
- static void
- hwi_write_sgl_v2(struct iscsi_wrb *pwrb, struct scatterlist *sg,
- unsigned int num_sg, struct beiscsi_io_task *io_task)
- {
- struct iscsi_sge *psgl;
- unsigned int sg_len, index;
- unsigned int sge_len = 0;
- unsigned long long addr;
- struct scatterlist *l_sg;
- unsigned int offset;
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_lo, pwrb,
- io_task->bhs_pa.u.a32.address_lo);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, iscsi_bhs_addr_hi, pwrb,
- io_task->bhs_pa.u.a32.address_hi);
- l_sg = sg;
- for (index = 0; (index < num_sg) && (index < 2); index++,
- sg = sg_next(sg)) {
- if (index == 0) {
- sg_len = sg_dma_len(sg);
- addr = (u64) sg_dma_address(sg);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- sge0_addr_lo, pwrb,
- lower_32_bits(addr));
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- sge0_addr_hi, pwrb,
- upper_32_bits(addr));
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- sge0_len, pwrb,
- sg_len);
- sge_len = sg_len;
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_r2t_offset,
- pwrb, sge_len);
- sg_len = sg_dma_len(sg);
- addr = (u64) sg_dma_address(sg);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- sge1_addr_lo, pwrb,
- lower_32_bits(addr));
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- sge1_addr_hi, pwrb,
- upper_32_bits(addr));
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- sge1_len, pwrb,
- sg_len);
- }
- }
- psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
- memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
- AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
- io_task->bhs_pa.u.a32.address_hi);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
- io_task->bhs_pa.u.a32.address_lo);
- if (num_sg == 1) {
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
- 1);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
- 0);
- } else if (num_sg == 2) {
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
- 0);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
- 1);
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge0_last, pwrb,
- 0);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sge1_last, pwrb,
- 0);
- }
- sg = l_sg;
- psgl++;
- psgl++;
- offset = 0;
- for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) {
- sg_len = sg_dma_len(sg);
- addr = (u64) sg_dma_address(sg);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
- lower_32_bits(addr));
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
- upper_32_bits(addr));
- AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
- AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
- AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
- offset += sg_len;
- }
- psgl--;
- AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
- }
- static void
- hwi_write_sgl(struct iscsi_wrb *pwrb, struct scatterlist *sg,
- unsigned int num_sg, struct beiscsi_io_task *io_task)
- {
- struct iscsi_sge *psgl;
- unsigned int sg_len, index;
- unsigned int sge_len = 0;
- unsigned long long addr;
- struct scatterlist *l_sg;
- unsigned int offset;
- AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
- io_task->bhs_pa.u.a32.address_lo);
- AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
- io_task->bhs_pa.u.a32.address_hi);
- l_sg = sg;
- for (index = 0; (index < num_sg) && (index < 2); index++,
- sg = sg_next(sg)) {
- if (index == 0) {
- sg_len = sg_dma_len(sg);
- addr = (u64) sg_dma_address(sg);
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
- ((u32)(addr & 0xFFFFFFFF)));
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
- ((u32)(addr >> 32)));
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
- sg_len);
- sge_len = sg_len;
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_r2t_offset,
- pwrb, sge_len);
- sg_len = sg_dma_len(sg);
- addr = (u64) sg_dma_address(sg);
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_lo, pwrb,
- ((u32)(addr & 0xFFFFFFFF)));
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_addr_hi, pwrb,
- ((u32)(addr >> 32)));
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_len, pwrb,
- sg_len);
- }
- }
- psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
- memset(psgl, 0, sizeof(*psgl) * BE2_SGE);
- AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len - 2);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
- io_task->bhs_pa.u.a32.address_hi);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
- io_task->bhs_pa.u.a32.address_lo);
- if (num_sg == 1) {
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
- 1);
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
- 0);
- } else if (num_sg == 2) {
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
- 0);
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
- 1);
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb,
- 0);
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge1_last, pwrb,
- 0);
- }
- sg = l_sg;
- psgl++;
- psgl++;
- offset = 0;
- for (index = 0; index < num_sg; index++, sg = sg_next(sg), psgl++) {
- sg_len = sg_dma_len(sg);
- addr = (u64) sg_dma_address(sg);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
- (addr & 0xFFFFFFFF));
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
- (addr >> 32));
- AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, sg_len);
- AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, offset);
- AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
- offset += sg_len;
- }
- psgl--;
- AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
- }
- /**
- * hwi_write_buffer()- Populate the WRB with task info
- * @pwrb: ptr to the WRB entry
- * @task: iscsi task which is to be executed
- **/
- static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
- {
- struct iscsi_sge *psgl;
- struct beiscsi_io_task *io_task = task->dd_data;
- struct beiscsi_conn *beiscsi_conn = io_task->conn;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- uint8_t dsp_value = 0;
- io_task->bhs_len = sizeof(struct be_nonio_bhs) - 2;
- AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_lo, pwrb,
- io_task->bhs_pa.u.a32.address_lo);
- AMAP_SET_BITS(struct amap_iscsi_wrb, iscsi_bhs_addr_hi, pwrb,
- io_task->bhs_pa.u.a32.address_hi);
- if (task->data) {
- /* Check for the data_count */
- dsp_value = (task->data_count) ? 1 : 0;
- if (is_chip_be2_be3r(phba))
- AMAP_SET_BITS(struct amap_iscsi_wrb, dsp,
- pwrb, dsp_value);
- else
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp,
- pwrb, dsp_value);
- /* Map addr only if there is data_count */
- if (dsp_value) {
- io_task->mtask_addr = pci_map_single(phba->pcidev,
- task->data,
- task->data_count,
- PCI_DMA_TODEVICE);
- io_task->mtask_data_count = task->data_count;
- } else
- io_task->mtask_addr = 0;
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_lo, pwrb,
- lower_32_bits(io_task->mtask_addr));
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_addr_hi, pwrb,
- upper_32_bits(io_task->mtask_addr));
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_len, pwrb,
- task->data_count);
- AMAP_SET_BITS(struct amap_iscsi_wrb, sge0_last, pwrb, 1);
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
- io_task->mtask_addr = 0;
- }
- psgl = (struct iscsi_sge *)io_task->psgl_handle->pfrag;
- AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, io_task->bhs_len);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
- io_task->bhs_pa.u.a32.address_hi);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
- io_task->bhs_pa.u.a32.address_lo);
- if (task->data) {
- psgl++;
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl, 0);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl, 0);
- AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0);
- AMAP_SET_BITS(struct amap_iscsi_sge, sge_offset, psgl, 0);
- AMAP_SET_BITS(struct amap_iscsi_sge, rsvd0, psgl, 0);
- AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 0);
- psgl++;
- if (task->data) {
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, psgl,
- lower_32_bits(io_task->mtask_addr));
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, psgl,
- upper_32_bits(io_task->mtask_addr));
- }
- AMAP_SET_BITS(struct amap_iscsi_sge, len, psgl, 0x106);
- }
- AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
- }
- /**
- * beiscsi_find_mem_req()- Find mem needed
- * @phba: ptr to HBA struct
- **/
- static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
- {
- uint8_t mem_descr_index, ulp_num;
- unsigned int num_cq_pages, num_async_pdu_buf_pages;
- unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
- unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
- num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
- sizeof(struct sol_cqe));
- phba->params.hwi_ws_sz = sizeof(struct hwi_controller);
- phba->mem_req[ISCSI_MEM_GLOBAL_HEADER] = 2 *
- BE_ISCSI_PDU_HEADER_SIZE;
- phba->mem_req[HWI_MEM_ADDN_CONTEXT] =
- sizeof(struct hwi_context_memory);
- phba->mem_req[HWI_MEM_WRB] = sizeof(struct iscsi_wrb)
- * (phba->params.wrbs_per_cxn)
- * phba->params.cxns_per_ctrl;
- wrb_sz_per_cxn = sizeof(struct wrb_handle) *
- (phba->params.wrbs_per_cxn);
- phba->mem_req[HWI_MEM_WRBH] = roundup_pow_of_two((wrb_sz_per_cxn) *
- phba->params.cxns_per_ctrl);
- phba->mem_req[HWI_MEM_SGLH] = sizeof(struct sgl_handle) *
- phba->params.icds_per_ctrl;
- phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
- phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- num_async_pdu_buf_sgl_pages =
- PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
- phba, ulp_num) *
- sizeof(struct phys_addr));
- num_async_pdu_buf_pages =
- PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
- phba, ulp_num) *
- phba->params.defpdu_hdr_sz);
- num_async_pdu_data_pages =
- PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
- phba, ulp_num) *
- phba->params.defpdu_data_sz);
- num_async_pdu_data_sgl_pages =
- PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
- phba, ulp_num) *
- sizeof(struct phys_addr));
- mem_descr_index = (HWI_MEM_TEMPLATE_HDR_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE;
- mem_descr_index = (HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- num_async_pdu_buf_pages *
- PAGE_SIZE;
- mem_descr_index = (HWI_MEM_ASYNC_DATA_BUF_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- num_async_pdu_data_pages *
- PAGE_SIZE;
- mem_descr_index = (HWI_MEM_ASYNC_HEADER_RING_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- num_async_pdu_buf_sgl_pages *
- PAGE_SIZE;
- mem_descr_index = (HWI_MEM_ASYNC_DATA_RING_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- num_async_pdu_data_sgl_pages *
- PAGE_SIZE;
- mem_descr_index = (HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- sizeof(struct async_pdu_handle);
- mem_descr_index = (HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- sizeof(struct async_pdu_handle);
- mem_descr_index = (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phba->mem_req[mem_descr_index] =
- sizeof(struct hwi_async_pdu_context) +
- (BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- sizeof(struct hwi_async_entry));
- }
- }
- }
- static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
- {
- dma_addr_t bus_add;
- struct hwi_controller *phwi_ctrlr;
- struct be_mem_descriptor *mem_descr;
- struct mem_array *mem_arr, *mem_arr_orig;
- unsigned int i, j, alloc_size, curr_alloc_size;
- phba->phwi_ctrlr = kzalloc(phba->params.hwi_ws_sz, GFP_KERNEL);
- if (!phba->phwi_ctrlr)
- return -ENOMEM;
- /* Allocate memory for wrb_context */
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_ctrlr->wrb_context = kzalloc(sizeof(struct hwi_wrb_context) *
- phba->params.cxns_per_ctrl,
- GFP_KERNEL);
- if (!phwi_ctrlr->wrb_context)
- return -ENOMEM;
- phba->init_mem = kcalloc(SE_MEM_MAX, sizeof(*mem_descr),
- GFP_KERNEL);
- if (!phba->init_mem) {
- kfree(phwi_ctrlr->wrb_context);
- kfree(phba->phwi_ctrlr);
- return -ENOMEM;
- }
- mem_arr_orig = kmalloc(sizeof(*mem_arr_orig) * BEISCSI_MAX_FRAGS_INIT,
- GFP_KERNEL);
- if (!mem_arr_orig) {
- kfree(phba->init_mem);
- kfree(phwi_ctrlr->wrb_context);
- kfree(phba->phwi_ctrlr);
- return -ENOMEM;
- }
- mem_descr = phba->init_mem;
- for (i = 0; i < SE_MEM_MAX; i++) {
- if (!phba->mem_req[i]) {
- mem_descr->mem_array = NULL;
- mem_descr++;
- continue;
- }
- j = 0;
- mem_arr = mem_arr_orig;
- alloc_size = phba->mem_req[i];
- memset(mem_arr, 0, sizeof(struct mem_array) *
- BEISCSI_MAX_FRAGS_INIT);
- curr_alloc_size = min(be_max_phys_size * 1024, alloc_size);
- do {
- mem_arr->virtual_address = pci_alloc_consistent(
- phba->pcidev,
- curr_alloc_size,
- &bus_add);
- if (!mem_arr->virtual_address) {
- if (curr_alloc_size <= BE_MIN_MEM_SIZE)
- goto free_mem;
- if (curr_alloc_size -
- rounddown_pow_of_two(curr_alloc_size))
- curr_alloc_size = rounddown_pow_of_two
- (curr_alloc_size);
- else
- curr_alloc_size = curr_alloc_size / 2;
- } else {
- mem_arr->bus_address.u.
- a64.address = (__u64) bus_add;
- mem_arr->size = curr_alloc_size;
- alloc_size -= curr_alloc_size;
- curr_alloc_size = min(be_max_phys_size *
- 1024, alloc_size);
- j++;
- mem_arr++;
- }
- } while (alloc_size);
- mem_descr->num_elements = j;
- mem_descr->size_in_bytes = phba->mem_req[i];
- mem_descr->mem_array = kmalloc(sizeof(*mem_arr) * j,
- GFP_KERNEL);
- if (!mem_descr->mem_array)
- goto free_mem;
- memcpy(mem_descr->mem_array, mem_arr_orig,
- sizeof(struct mem_array) * j);
- mem_descr++;
- }
- kfree(mem_arr_orig);
- return 0;
- free_mem:
- mem_descr->num_elements = j;
- while ((i) || (j)) {
- for (j = mem_descr->num_elements; j > 0; j--) {
- pci_free_consistent(phba->pcidev,
- mem_descr->mem_array[j - 1].size,
- mem_descr->mem_array[j - 1].
- virtual_address,
- (unsigned long)mem_descr->
- mem_array[j - 1].
- bus_address.u.a64.address);
- }
- if (i) {
- i--;
- kfree(mem_descr->mem_array);
- mem_descr--;
- }
- }
- kfree(mem_arr_orig);
- kfree(phba->init_mem);
- kfree(phba->phwi_ctrlr->wrb_context);
- kfree(phba->phwi_ctrlr);
- return -ENOMEM;
- }
- static int beiscsi_get_memory(struct beiscsi_hba *phba)
- {
- beiscsi_find_mem_req(phba);
- return beiscsi_alloc_mem(phba);
- }
- static void iscsi_init_global_templates(struct beiscsi_hba *phba)
- {
- struct pdu_data_out *pdata_out;
- struct pdu_nop_out *pnop_out;
- struct be_mem_descriptor *mem_descr;
- mem_descr = phba->init_mem;
- mem_descr += ISCSI_MEM_GLOBAL_HEADER;
- pdata_out =
- (struct pdu_data_out *)mem_descr->mem_array[0].virtual_address;
- memset(pdata_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
- AMAP_SET_BITS(struct amap_pdu_data_out, opcode, pdata_out,
- IIOC_SCSI_DATA);
- pnop_out =
- (struct pdu_nop_out *)((unsigned char *)mem_descr->mem_array[0].
- virtual_address + BE_ISCSI_PDU_HEADER_SIZE);
- memset(pnop_out, 0, BE_ISCSI_PDU_HEADER_SIZE);
- AMAP_SET_BITS(struct amap_pdu_nop_out, ttt, pnop_out, 0xFFFFFFFF);
- AMAP_SET_BITS(struct amap_pdu_nop_out, f_bit, pnop_out, 1);
- AMAP_SET_BITS(struct amap_pdu_nop_out, i_bit, pnop_out, 0);
- }
- static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
- {
- struct be_mem_descriptor *mem_descr_wrbh, *mem_descr_wrb;
- struct hwi_context_memory *phwi_ctxt;
- struct wrb_handle *pwrb_handle = NULL;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_wrb_context *pwrb_context;
- struct iscsi_wrb *pwrb = NULL;
- unsigned int num_cxn_wrbh = 0;
- unsigned int num_cxn_wrb = 0, j, idx = 0, index;
- mem_descr_wrbh = phba->init_mem;
- mem_descr_wrbh += HWI_MEM_WRBH;
- mem_descr_wrb = phba->init_mem;
- mem_descr_wrb += HWI_MEM_WRB;
- phwi_ctrlr = phba->phwi_ctrlr;
- /* Allocate memory for WRBQ */
- phwi_ctxt = phwi_ctrlr->phwi_ctxt;
- phwi_ctxt->be_wrbq = kzalloc(sizeof(struct be_queue_info) *
- phba->params.cxns_per_ctrl,
- GFP_KERNEL);
- if (!phwi_ctxt->be_wrbq) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : WRBQ Mem Alloc Failed\n");
- return -ENOMEM;
- }
- for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
- pwrb_context = &phwi_ctrlr->wrb_context[index];
- pwrb_context->pwrb_handle_base =
- kzalloc(sizeof(struct wrb_handle *) *
- phba->params.wrbs_per_cxn, GFP_KERNEL);
- if (!pwrb_context->pwrb_handle_base) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Mem Alloc Failed. Failing to load\n");
- goto init_wrb_hndl_failed;
- }
- pwrb_context->pwrb_handle_basestd =
- kzalloc(sizeof(struct wrb_handle *) *
- phba->params.wrbs_per_cxn, GFP_KERNEL);
- if (!pwrb_context->pwrb_handle_basestd) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Mem Alloc Failed. Failing to load\n");
- goto init_wrb_hndl_failed;
- }
- if (!num_cxn_wrbh) {
- pwrb_handle =
- mem_descr_wrbh->mem_array[idx].virtual_address;
- num_cxn_wrbh = ((mem_descr_wrbh->mem_array[idx].size) /
- ((sizeof(struct wrb_handle)) *
- phba->params.wrbs_per_cxn));
- idx++;
- }
- pwrb_context->alloc_index = 0;
- pwrb_context->wrb_handles_available = 0;
- pwrb_context->free_index = 0;
- if (num_cxn_wrbh) {
- for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
- pwrb_context->pwrb_handle_base[j] = pwrb_handle;
- pwrb_context->pwrb_handle_basestd[j] =
- pwrb_handle;
- pwrb_context->wrb_handles_available++;
- pwrb_handle->wrb_index = j;
- pwrb_handle++;
- }
- num_cxn_wrbh--;
- }
- }
- idx = 0;
- for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
- pwrb_context = &phwi_ctrlr->wrb_context[index];
- if (!num_cxn_wrb) {
- pwrb = mem_descr_wrb->mem_array[idx].virtual_address;
- num_cxn_wrb = (mem_descr_wrb->mem_array[idx].size) /
- ((sizeof(struct iscsi_wrb) *
- phba->params.wrbs_per_cxn));
- idx++;
- }
- if (num_cxn_wrb) {
- for (j = 0; j < phba->params.wrbs_per_cxn; j++) {
- pwrb_handle = pwrb_context->pwrb_handle_base[j];
- pwrb_handle->pwrb = pwrb;
- pwrb++;
- }
- num_cxn_wrb--;
- }
- }
- return 0;
- init_wrb_hndl_failed:
- for (j = index; j > 0; j--) {
- pwrb_context = &phwi_ctrlr->wrb_context[j];
- kfree(pwrb_context->pwrb_handle_base);
- kfree(pwrb_context->pwrb_handle_basestd);
- }
- return -ENOMEM;
- }
- static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
- {
- uint8_t ulp_num;
- struct hwi_controller *phwi_ctrlr;
- struct hba_parameters *p = &phba->params;
- struct hwi_async_pdu_context *pasync_ctx;
- struct async_pdu_handle *pasync_header_h, *pasync_data_h;
- unsigned int index, idx, num_per_mem, num_async_data;
- struct be_mem_descriptor *mem_descr;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET));
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num] =
- (struct hwi_async_pdu_context *)
- mem_descr->mem_array[0].virtual_address;
- pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
- memset(pasync_ctx, 0, sizeof(*pasync_ctx));
- pasync_ctx->async_entry =
- (struct hwi_async_entry *)
- ((long unsigned int)pasync_ctx +
- sizeof(struct hwi_async_pdu_context));
- pasync_ctx->num_entries = BEISCSI_GET_CID_COUNT(phba,
- ulp_num);
- pasync_ctx->buffer_size = p->defpdu_hdr_sz;
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- if (mem_descr->mem_array[0].virtual_address) {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_async_pdu_ctx"
- " HWI_MEM_ASYNC_HEADER_BUF_ULP%d va=%p\n",
- ulp_num,
- mem_descr->mem_array[0].
- virtual_address);
- } else
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : No Virtual address for ULP : %d\n",
- ulp_num);
- pasync_ctx->async_header.va_base =
- mem_descr->mem_array[0].virtual_address;
- pasync_ctx->async_header.pa_base.u.a64.address =
- mem_descr->mem_array[0].
- bus_address.u.a64.address;
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- if (mem_descr->mem_array[0].virtual_address) {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_async_pdu_ctx"
- " HWI_MEM_ASYNC_HEADER_RING_ULP%d va=%p\n",
- ulp_num,
- mem_descr->mem_array[0].
- virtual_address);
- } else
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : No Virtual address for ULP : %d\n",
- ulp_num);
- pasync_ctx->async_header.ring_base =
- mem_descr->mem_array[0].virtual_address;
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- if (mem_descr->mem_array[0].virtual_address) {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_async_pdu_ctx"
- " HWI_MEM_ASYNC_HEADER_HANDLE_ULP%d va=%p\n",
- ulp_num,
- mem_descr->mem_array[0].
- virtual_address);
- } else
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : No Virtual address for ULP : %d\n",
- ulp_num);
- pasync_ctx->async_header.handle_base =
- mem_descr->mem_array[0].virtual_address;
- pasync_ctx->async_header.writables = 0;
- INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- if (mem_descr->mem_array[0].virtual_address) {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_async_pdu_ctx"
- " HWI_MEM_ASYNC_DATA_RING_ULP%d va=%p\n",
- ulp_num,
- mem_descr->mem_array[0].
- virtual_address);
- } else
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : No Virtual address for ULP : %d\n",
- ulp_num);
- pasync_ctx->async_data.ring_base =
- mem_descr->mem_array[0].virtual_address;
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- if (!mem_descr->mem_array[0].virtual_address)
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : No Virtual address for ULP : %d\n",
- ulp_num);
- pasync_ctx->async_data.handle_base =
- mem_descr->mem_array[0].virtual_address;
- pasync_ctx->async_data.writables = 0;
- INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
- pasync_header_h =
- (struct async_pdu_handle *)
- pasync_ctx->async_header.handle_base;
- pasync_data_h =
- (struct async_pdu_handle *)
- pasync_ctx->async_data.handle_base;
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_DATA_BUF_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- if (mem_descr->mem_array[0].virtual_address) {
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_async_pdu_ctx"
- " HWI_MEM_ASYNC_DATA_BUF_ULP%d va=%p\n",
- ulp_num,
- mem_descr->mem_array[0].
- virtual_address);
- } else
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : No Virtual address for ULP : %d\n",
- ulp_num);
- idx = 0;
- pasync_ctx->async_data.va_base =
- mem_descr->mem_array[idx].virtual_address;
- pasync_ctx->async_data.pa_base.u.a64.address =
- mem_descr->mem_array[idx].
- bus_address.u.a64.address;
- num_async_data = ((mem_descr->mem_array[idx].size) /
- phba->params.defpdu_data_sz);
- num_per_mem = 0;
- for (index = 0; index < BEISCSI_GET_CID_COUNT
- (phba, ulp_num); index++) {
- pasync_header_h->cri = -1;
- pasync_header_h->index = (char)index;
- INIT_LIST_HEAD(&pasync_header_h->link);
- pasync_header_h->pbuffer =
- (void *)((unsigned long)
- (pasync_ctx->
- async_header.va_base) +
- (p->defpdu_hdr_sz * index));
- pasync_header_h->pa.u.a64.address =
- pasync_ctx->async_header.pa_base.u.a64.
- address + (p->defpdu_hdr_sz * index);
- list_add_tail(&pasync_header_h->link,
- &pasync_ctx->async_header.
- free_list);
- pasync_header_h++;
- pasync_ctx->async_header.free_entries++;
- pasync_ctx->async_header.writables++;
- INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
- wait_queue.list);
- INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
- header_busy_list);
- pasync_data_h->cri = -1;
- pasync_data_h->index = (char)index;
- INIT_LIST_HEAD(&pasync_data_h->link);
- if (!num_async_data) {
- num_per_mem = 0;
- idx++;
- pasync_ctx->async_data.va_base =
- mem_descr->mem_array[idx].
- virtual_address;
- pasync_ctx->async_data.pa_base.u.
- a64.address =
- mem_descr->mem_array[idx].
- bus_address.u.a64.address;
- num_async_data =
- ((mem_descr->mem_array[idx].
- size) /
- phba->params.defpdu_data_sz);
- }
- pasync_data_h->pbuffer =
- (void *)((unsigned long)
- (pasync_ctx->async_data.va_base) +
- (p->defpdu_data_sz * num_per_mem));
- pasync_data_h->pa.u.a64.address =
- pasync_ctx->async_data.pa_base.u.a64.
- address + (p->defpdu_data_sz *
- num_per_mem);
- num_per_mem++;
- num_async_data--;
- list_add_tail(&pasync_data_h->link,
- &pasync_ctx->async_data.
- free_list);
- pasync_data_h++;
- pasync_ctx->async_data.free_entries++;
- pasync_ctx->async_data.writables++;
- INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
- data_busy_list);
- }
- pasync_ctx->async_header.host_write_ptr = 0;
- pasync_ctx->async_header.ep_read_ptr = -1;
- pasync_ctx->async_data.host_write_ptr = 0;
- pasync_ctx->async_data.ep_read_ptr = -1;
- }
- }
- return 0;
- }
- static int
- be_sgl_create_contiguous(void *virtual_address,
- u64 physical_address, u32 length,
- struct be_dma_mem *sgl)
- {
- WARN_ON(!virtual_address);
- WARN_ON(!physical_address);
- WARN_ON(!length);
- WARN_ON(!sgl);
- sgl->va = virtual_address;
- sgl->dma = (unsigned long)physical_address;
- sgl->size = length;
- return 0;
- }
- static void be_sgl_destroy_contiguous(struct be_dma_mem *sgl)
- {
- memset(sgl, 0, sizeof(*sgl));
- }
- static void
- hwi_build_be_sgl_arr(struct beiscsi_hba *phba,
- struct mem_array *pmem, struct be_dma_mem *sgl)
- {
- if (sgl->va)
- be_sgl_destroy_contiguous(sgl);
- be_sgl_create_contiguous(pmem->virtual_address,
- pmem->bus_address.u.a64.address,
- pmem->size, sgl);
- }
- static void
- hwi_build_be_sgl_by_offset(struct beiscsi_hba *phba,
- struct mem_array *pmem, struct be_dma_mem *sgl)
- {
- if (sgl->va)
- be_sgl_destroy_contiguous(sgl);
- be_sgl_create_contiguous((unsigned char *)pmem->virtual_address,
- pmem->bus_address.u.a64.address,
- pmem->size, sgl);
- }
- static int be_fill_queue(struct be_queue_info *q,
- u16 len, u16 entry_size, void *vaddress)
- {
- struct be_dma_mem *mem = &q->dma_mem;
- memset(q, 0, sizeof(*q));
- q->len = len;
- q->entry_size = entry_size;
- mem->size = len * entry_size;
- mem->va = vaddress;
- if (!mem->va)
- return -ENOMEM;
- memset(mem->va, 0, mem->size);
- return 0;
- }
- static int beiscsi_create_eqs(struct beiscsi_hba *phba,
- struct hwi_context_memory *phwi_context)
- {
- unsigned int i, num_eq_pages;
- int ret = 0, eq_for_mcc;
- struct be_queue_info *eq;
- struct be_dma_mem *mem;
- void *eq_vaddress;
- dma_addr_t paddr;
- num_eq_pages = PAGES_REQUIRED(phba->params.num_eq_entries * \
- sizeof(struct be_eq_entry));
- if (phba->msix_enabled)
- eq_for_mcc = 1;
- else
- eq_for_mcc = 0;
- for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
- eq = &phwi_context->be_eq[i].q;
- mem = &eq->dma_mem;
- phwi_context->be_eq[i].phba = phba;
- eq_vaddress = pci_alloc_consistent(phba->pcidev,
- num_eq_pages * PAGE_SIZE,
- &paddr);
- if (!eq_vaddress)
- goto create_eq_error;
- mem->va = eq_vaddress;
- ret = be_fill_queue(eq, phba->params.num_eq_entries,
- sizeof(struct be_eq_entry), eq_vaddress);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : be_fill_queue Failed for EQ\n");
- goto create_eq_error;
- }
- mem->dma = paddr;
- ret = beiscsi_cmd_eq_create(&phba->ctrl, eq,
- phwi_context->cur_eqd);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_cmd_eq_create"
- "Failed for EQ\n");
- goto create_eq_error;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : eqid = %d\n",
- phwi_context->be_eq[i].q.id);
- }
- return 0;
- create_eq_error:
- for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
- eq = &phwi_context->be_eq[i].q;
- mem = &eq->dma_mem;
- if (mem->va)
- pci_free_consistent(phba->pcidev, num_eq_pages
- * PAGE_SIZE,
- mem->va, mem->dma);
- }
- return ret;
- }
- static int beiscsi_create_cqs(struct beiscsi_hba *phba,
- struct hwi_context_memory *phwi_context)
- {
- unsigned int i, num_cq_pages;
- int ret = 0;
- struct be_queue_info *cq, *eq;
- struct be_dma_mem *mem;
- struct be_eq_obj *pbe_eq;
- void *cq_vaddress;
- dma_addr_t paddr;
- num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
- sizeof(struct sol_cqe));
- for (i = 0; i < phba->num_cpus; i++) {
- cq = &phwi_context->be_cq[i];
- eq = &phwi_context->be_eq[i].q;
- pbe_eq = &phwi_context->be_eq[i];
- pbe_eq->cq = cq;
- pbe_eq->phba = phba;
- mem = &cq->dma_mem;
- cq_vaddress = pci_alloc_consistent(phba->pcidev,
- num_cq_pages * PAGE_SIZE,
- &paddr);
- if (!cq_vaddress)
- goto create_cq_error;
- ret = be_fill_queue(cq, phba->params.num_cq_entries,
- sizeof(struct sol_cqe), cq_vaddress);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : be_fill_queue Failed "
- "for ISCSI CQ\n");
- goto create_cq_error;
- }
- mem->dma = paddr;
- ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false,
- false, 0);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_cmd_eq_create"
- "Failed for ISCSI CQ\n");
- goto create_cq_error;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : iscsi cq_id is %d for eq_id %d\n"
- "iSCSI CQ CREATED\n", cq->id, eq->id);
- }
- return 0;
- create_cq_error:
- for (i = 0; i < phba->num_cpus; i++) {
- cq = &phwi_context->be_cq[i];
- mem = &cq->dma_mem;
- if (mem->va)
- pci_free_consistent(phba->pcidev, num_cq_pages
- * PAGE_SIZE,
- mem->va, mem->dma);
- }
- return ret;
- }
- static int
- beiscsi_create_def_hdr(struct beiscsi_hba *phba,
- struct hwi_context_memory *phwi_context,
- struct hwi_controller *phwi_ctrlr,
- unsigned int def_pdu_ring_sz, uint8_t ulp_num)
- {
- unsigned int idx;
- int ret;
- struct be_queue_info *dq, *cq;
- struct be_dma_mem *mem;
- struct be_mem_descriptor *mem_descr;
- void *dq_vaddress;
- idx = 0;
- dq = &phwi_context->be_def_hdrq[ulp_num];
- cq = &phwi_context->be_cq[0];
- mem = &dq->dma_mem;
- mem_descr = phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- dq_vaddress = mem_descr->mem_array[idx].virtual_address;
- ret = be_fill_queue(dq, mem_descr->mem_array[0].size /
- sizeof(struct phys_addr),
- sizeof(struct phys_addr), dq_vaddress);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : be_fill_queue Failed for DEF PDU HDR on ULP : %d\n",
- ulp_num);
- return ret;
- }
- mem->dma = (unsigned long)mem_descr->mem_array[idx].
- bus_address.u.a64.address;
- ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq,
- def_pdu_ring_sz,
- phba->params.defpdu_hdr_sz,
- BEISCSI_DEFQ_HDR, ulp_num);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR on ULP : %d\n",
- ulp_num);
- return ret;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n",
- ulp_num,
- phwi_context->be_def_hdrq[ulp_num].id);
- hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR, ulp_num);
- return 0;
- }
- static int
- beiscsi_create_def_data(struct beiscsi_hba *phba,
- struct hwi_context_memory *phwi_context,
- struct hwi_controller *phwi_ctrlr,
- unsigned int def_pdu_ring_sz, uint8_t ulp_num)
- {
- unsigned int idx;
- int ret;
- struct be_queue_info *dataq, *cq;
- struct be_dma_mem *mem;
- struct be_mem_descriptor *mem_descr;
- void *dq_vaddress;
- idx = 0;
- dataq = &phwi_context->be_def_dataq[ulp_num];
- cq = &phwi_context->be_cq[0];
- mem = &dataq->dma_mem;
- mem_descr = phba->init_mem;
- mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- dq_vaddress = mem_descr->mem_array[idx].virtual_address;
- ret = be_fill_queue(dataq, mem_descr->mem_array[0].size /
- sizeof(struct phys_addr),
- sizeof(struct phys_addr), dq_vaddress);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : be_fill_queue Failed for DEF PDU "
- "DATA on ULP : %d\n",
- ulp_num);
- return ret;
- }
- mem->dma = (unsigned long)mem_descr->mem_array[idx].
- bus_address.u.a64.address;
- ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq,
- def_pdu_ring_sz,
- phba->params.defpdu_data_sz,
- BEISCSI_DEFQ_DATA, ulp_num);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d be_cmd_create_default_pdu_queue"
- " Failed for DEF PDU DATA on ULP : %d\n",
- ulp_num);
- return ret;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : iscsi def data id on ULP : %d is %d\n",
- ulp_num,
- phwi_context->be_def_dataq[ulp_num].id);
- hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA, ulp_num);
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : DEFAULT PDU DATA RING CREATED"
- "on ULP : %d\n", ulp_num);
- return 0;
- }
- static int
- beiscsi_post_template_hdr(struct beiscsi_hba *phba)
- {
- struct be_mem_descriptor *mem_descr;
- struct mem_array *pm_arr;
- struct be_dma_mem sgl;
- int status, ulp_num;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- mem_descr = (struct be_mem_descriptor *)phba->init_mem;
- mem_descr += HWI_MEM_TEMPLATE_HDR_ULP0 +
- (ulp_num * MEM_DESCR_OFFSET);
- pm_arr = mem_descr->mem_array;
- hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
- status = be_cmd_iscsi_post_template_hdr(
- &phba->ctrl, &sgl);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Post Template HDR Failed for"
- "ULP_%d\n", ulp_num);
- return status;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : Template HDR Pages Posted for"
- "ULP_%d\n", ulp_num);
- }
- }
- return 0;
- }
- static int
- beiscsi_post_pages(struct beiscsi_hba *phba)
- {
- struct be_mem_descriptor *mem_descr;
- struct mem_array *pm_arr;
- unsigned int page_offset, i;
- struct be_dma_mem sgl;
- int status, ulp_num = 0;
- mem_descr = phba->init_mem;
- mem_descr += HWI_MEM_SGE;
- pm_arr = mem_descr->mem_array;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
- break;
- page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
- phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE;
- for (i = 0; i < mem_descr->num_elements; i++) {
- hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
- status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
- page_offset,
- (pm_arr->size / PAGE_SIZE));
- page_offset += pm_arr->size / PAGE_SIZE;
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : post sgl failed.\n");
- return status;
- }
- pm_arr++;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : POSTED PAGES\n");
- return 0;
- }
- static void be_queue_free(struct beiscsi_hba *phba, struct be_queue_info *q)
- {
- struct be_dma_mem *mem = &q->dma_mem;
- if (mem->va) {
- pci_free_consistent(phba->pcidev, mem->size,
- mem->va, mem->dma);
- mem->va = NULL;
- }
- }
- static int be_queue_alloc(struct beiscsi_hba *phba, struct be_queue_info *q,
- u16 len, u16 entry_size)
- {
- struct be_dma_mem *mem = &q->dma_mem;
- memset(q, 0, sizeof(*q));
- q->len = len;
- q->entry_size = entry_size;
- mem->size = len * entry_size;
- mem->va = pci_zalloc_consistent(phba->pcidev, mem->size, &mem->dma);
- if (!mem->va)
- return -ENOMEM;
- return 0;
- }
- static int
- beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
- struct hwi_context_memory *phwi_context,
- struct hwi_controller *phwi_ctrlr)
- {
- unsigned int wrb_mem_index, offset, size, num_wrb_rings;
- u64 pa_addr_lo;
- unsigned int idx, num, i, ulp_num;
- struct mem_array *pwrb_arr;
- void *wrb_vaddr;
- struct be_dma_mem sgl;
- struct be_mem_descriptor *mem_descr;
- struct hwi_wrb_context *pwrb_context;
- int status;
- uint8_t ulp_count = 0, ulp_base_num = 0;
- uint16_t cid_count_ulp[BEISCSI_ULP_COUNT] = { 0 };
- idx = 0;
- mem_descr = phba->init_mem;
- mem_descr += HWI_MEM_WRB;
- pwrb_arr = kmalloc(sizeof(*pwrb_arr) * phba->params.cxns_per_ctrl,
- GFP_KERNEL);
- if (!pwrb_arr) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Memory alloc failed in create wrb ring.\n");
- return -ENOMEM;
- }
- wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
- pa_addr_lo = mem_descr->mem_array[idx].bus_address.u.a64.address;
- num_wrb_rings = mem_descr->mem_array[idx].size /
- (phba->params.wrbs_per_cxn * sizeof(struct iscsi_wrb));
- for (num = 0; num < phba->params.cxns_per_ctrl; num++) {
- if (num_wrb_rings) {
- pwrb_arr[num].virtual_address = wrb_vaddr;
- pwrb_arr[num].bus_address.u.a64.address = pa_addr_lo;
- pwrb_arr[num].size = phba->params.wrbs_per_cxn *
- sizeof(struct iscsi_wrb);
- wrb_vaddr += pwrb_arr[num].size;
- pa_addr_lo += pwrb_arr[num].size;
- num_wrb_rings--;
- } else {
- idx++;
- wrb_vaddr = mem_descr->mem_array[idx].virtual_address;
- pa_addr_lo = mem_descr->mem_array[idx].\
- bus_address.u.a64.address;
- num_wrb_rings = mem_descr->mem_array[idx].size /
- (phba->params.wrbs_per_cxn *
- sizeof(struct iscsi_wrb));
- pwrb_arr[num].virtual_address = wrb_vaddr;
- pwrb_arr[num].bus_address.u.a64.address\
- = pa_addr_lo;
- pwrb_arr[num].size = phba->params.wrbs_per_cxn *
- sizeof(struct iscsi_wrb);
- wrb_vaddr += pwrb_arr[num].size;
- pa_addr_lo += pwrb_arr[num].size;
- num_wrb_rings--;
- }
- }
- /* Get the ULP Count */
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- ulp_count++;
- ulp_base_num = ulp_num;
- cid_count_ulp[ulp_num] =
- BEISCSI_GET_CID_COUNT(phba, ulp_num);
- }
- for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
- wrb_mem_index = 0;
- offset = 0;
- size = 0;
- if (ulp_count > 1) {
- ulp_base_num = (ulp_base_num + 1) % BEISCSI_ULP_COUNT;
- if (!cid_count_ulp[ulp_base_num])
- ulp_base_num = (ulp_base_num + 1) %
- BEISCSI_ULP_COUNT;
- cid_count_ulp[ulp_base_num]--;
- }
- hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl);
- status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
- &phwi_context->be_wrbq[i],
- &phwi_ctrlr->wrb_context[i],
- ulp_base_num);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : wrbq create failed.");
- kfree(pwrb_arr);
- return status;
- }
- pwrb_context = &phwi_ctrlr->wrb_context[i];
- BE_SET_CID_TO_CRI(i, pwrb_context->cid);
- }
- kfree(pwrb_arr);
- return 0;
- }
- static void free_wrb_handles(struct beiscsi_hba *phba)
- {
- unsigned int index;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_wrb_context *pwrb_context;
- phwi_ctrlr = phba->phwi_ctrlr;
- for (index = 0; index < phba->params.cxns_per_ctrl; index++) {
- pwrb_context = &phwi_ctrlr->wrb_context[index];
- kfree(pwrb_context->pwrb_handle_base);
- kfree(pwrb_context->pwrb_handle_basestd);
- }
- }
- static void be_mcc_queues_destroy(struct beiscsi_hba *phba)
- {
- struct be_queue_info *q;
- struct be_ctrl_info *ctrl = &phba->ctrl;
- q = &phba->ctrl.mcc_obj.q;
- if (q->created) {
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_MCCQ);
- be_queue_free(phba, q);
- }
- q = &phba->ctrl.mcc_obj.cq;
- if (q->created) {
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
- be_queue_free(phba, q);
- }
- }
- static void hwi_cleanup(struct beiscsi_hba *phba)
- {
- struct be_queue_info *q;
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct hwi_async_pdu_context *pasync_ctx;
- int i, eq_for_mcc, ulp_num;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- be_cmd_iscsi_remove_template_hdr(ctrl);
- for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
- q = &phwi_context->be_wrbq[i];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_WRBQ);
- }
- kfree(phwi_context->be_wrbq);
- free_wrb_handles(phba);
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- q = &phwi_context->be_def_hdrq[ulp_num];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
- q = &phwi_context->be_def_dataq[ulp_num];
- if (q->created)
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
- pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
- }
- }
- beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
- for (i = 0; i < (phba->num_cpus); i++) {
- q = &phwi_context->be_cq[i];
- if (q->created) {
- be_queue_free(phba, q);
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_CQ);
- }
- }
- be_mcc_queues_destroy(phba);
- if (phba->msix_enabled)
- eq_for_mcc = 1;
- else
- eq_for_mcc = 0;
- for (i = 0; i < (phba->num_cpus + eq_for_mcc); i++) {
- q = &phwi_context->be_eq[i].q;
- if (q->created) {
- be_queue_free(phba, q);
- beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
- }
- }
- be_cmd_fw_uninit(ctrl);
- }
- static int be_mcc_queues_create(struct beiscsi_hba *phba,
- struct hwi_context_memory *phwi_context)
- {
- struct be_queue_info *q, *cq;
- struct be_ctrl_info *ctrl = &phba->ctrl;
- /* Alloc MCC compl queue */
- cq = &phba->ctrl.mcc_obj.cq;
- if (be_queue_alloc(phba, cq, MCC_CQ_LEN,
- sizeof(struct be_mcc_compl)))
- goto err;
- /* Ask BE to create MCC compl queue; */
- if (phba->msix_enabled) {
- if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq
- [phba->num_cpus].q, false, true, 0))
- goto mcc_cq_free;
- } else {
- if (beiscsi_cmd_cq_create(ctrl, cq, &phwi_context->be_eq[0].q,
- false, true, 0))
- goto mcc_cq_free;
- }
- /* Alloc MCC queue */
- q = &phba->ctrl.mcc_obj.q;
- if (be_queue_alloc(phba, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
- goto mcc_cq_destroy;
- /* Ask BE to create MCC queue */
- if (beiscsi_cmd_mccq_create(phba, q, cq))
- goto mcc_q_free;
- return 0;
- mcc_q_free:
- be_queue_free(phba, q);
- mcc_cq_destroy:
- beiscsi_cmd_q_destroy(ctrl, cq, QTYPE_CQ);
- mcc_cq_free:
- be_queue_free(phba, cq);
- err:
- return -ENOMEM;
- }
- /**
- * find_num_cpus()- Get the CPU online count
- * @phba: ptr to priv structure
- *
- * CPU count is used for creating EQ.
- **/
- static void find_num_cpus(struct beiscsi_hba *phba)
- {
- int num_cpus = 0;
- num_cpus = num_online_cpus();
- switch (phba->generation) {
- case BE_GEN2:
- case BE_GEN3:
- phba->num_cpus = (num_cpus > BEISCSI_MAX_NUM_CPUS) ?
- BEISCSI_MAX_NUM_CPUS : num_cpus;
- break;
- case BE_GEN4:
- /*
- * If eqid_count == 1 fall back to
- * INTX mechanism
- **/
- if (phba->fw_config.eqid_count == 1) {
- enable_msix = 0;
- phba->num_cpus = 1;
- return;
- }
- phba->num_cpus =
- (num_cpus > (phba->fw_config.eqid_count - 1)) ?
- (phba->fw_config.eqid_count - 1) : num_cpus;
- break;
- default:
- phba->num_cpus = 1;
- }
- }
- static int hwi_init_port(struct beiscsi_hba *phba)
- {
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- unsigned int def_pdu_ring_sz;
- struct be_ctrl_info *ctrl = &phba->ctrl;
- int status, ulp_num;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- phwi_context->max_eqd = 128;
- phwi_context->min_eqd = 0;
- phwi_context->cur_eqd = 0;
- be_cmd_fw_initialize(&phba->ctrl);
- status = beiscsi_create_eqs(phba, phwi_context);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : EQ not created\n");
- goto error;
- }
- status = be_mcc_queues_create(phba, phwi_context);
- if (status != 0)
- goto error;
- status = mgmt_check_supported_fw(ctrl, phba);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Unsupported fw version\n");
- goto error;
- }
- status = beiscsi_create_cqs(phba, phwi_context);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : CQ not created\n");
- goto error;
- }
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- def_pdu_ring_sz =
- BEISCSI_GET_CID_COUNT(phba, ulp_num) *
- sizeof(struct phys_addr);
- status = beiscsi_create_def_hdr(phba, phwi_context,
- phwi_ctrlr,
- def_pdu_ring_sz,
- ulp_num);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Default Header not created for ULP : %d\n",
- ulp_num);
- goto error;
- }
- status = beiscsi_create_def_data(phba, phwi_context,
- phwi_ctrlr,
- def_pdu_ring_sz,
- ulp_num);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Default Data not created for ULP : %d\n",
- ulp_num);
- goto error;
- }
- }
- }
- status = beiscsi_post_pages(phba);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Post SGL Pages Failed\n");
- goto error;
- }
- status = beiscsi_post_template_hdr(phba);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Template HDR Posting for CXN Failed\n");
- }
- status = beiscsi_create_wrb_rings(phba, phwi_context, phwi_ctrlr);
- if (status != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : WRB Rings not created\n");
- goto error;
- }
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- uint16_t async_arr_idx = 0;
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
- uint16_t cri = 0;
- struct hwi_async_pdu_context *pasync_ctx;
- pasync_ctx = HWI_GET_ASYNC_PDU_CTX(
- phwi_ctrlr, ulp_num);
- for (cri = 0; cri <
- phba->params.cxns_per_ctrl; cri++) {
- if (ulp_num == BEISCSI_GET_ULP_FROM_CRI
- (phwi_ctrlr, cri))
- pasync_ctx->cid_to_async_cri_map[
- phwi_ctrlr->wrb_context[cri].cid] =
- async_arr_idx++;
- }
- }
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_port success\n");
- return 0;
- error:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_port failed");
- hwi_cleanup(phba);
- return status;
- }
- static int hwi_init_controller(struct beiscsi_hba *phba)
- {
- struct hwi_controller *phwi_ctrlr;
- phwi_ctrlr = phba->phwi_ctrlr;
- if (1 == phba->init_mem[HWI_MEM_ADDN_CONTEXT].num_elements) {
- phwi_ctrlr->phwi_ctxt = (struct hwi_context_memory *)phba->
- init_mem[HWI_MEM_ADDN_CONTEXT].mem_array[0].virtual_address;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : phwi_ctrlr->phwi_ctxt=%p\n",
- phwi_ctrlr->phwi_ctxt);
- } else {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : HWI_MEM_ADDN_CONTEXT is more "
- "than one element.Failing to load\n");
- return -ENOMEM;
- }
- iscsi_init_global_templates(phba);
- if (beiscsi_init_wrb_handle(phba))
- return -ENOMEM;
- if (hwi_init_async_pdu_ctx(phba)) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_async_pdu_ctx failed\n");
- return -ENOMEM;
- }
- if (hwi_init_port(phba) != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : hwi_init_controller failed\n");
- return -ENOMEM;
- }
- return 0;
- }
- static void beiscsi_free_mem(struct beiscsi_hba *phba)
- {
- struct be_mem_descriptor *mem_descr;
- int i, j;
- mem_descr = phba->init_mem;
- i = 0;
- j = 0;
- for (i = 0; i < SE_MEM_MAX; i++) {
- for (j = mem_descr->num_elements; j > 0; j--) {
- pci_free_consistent(phba->pcidev,
- mem_descr->mem_array[j - 1].size,
- mem_descr->mem_array[j - 1].virtual_address,
- (unsigned long)mem_descr->mem_array[j - 1].
- bus_address.u.a64.address);
- }
- kfree(mem_descr->mem_array);
- mem_descr++;
- }
- kfree(phba->init_mem);
- kfree(phba->phwi_ctrlr->wrb_context);
- kfree(phba->phwi_ctrlr);
- }
- static int beiscsi_init_controller(struct beiscsi_hba *phba)
- {
- int ret = -ENOMEM;
- ret = beiscsi_get_memory(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe -"
- "Failed in beiscsi_alloc_memory\n");
- return ret;
- }
- ret = hwi_init_controller(phba);
- if (ret)
- goto free_init;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : Return success from beiscsi_init_controller");
- return 0;
- free_init:
- beiscsi_free_mem(phba);
- return ret;
- }
- static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
- {
- struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
- struct sgl_handle *psgl_handle;
- struct iscsi_sge *pfrag;
- unsigned int arr_index, i, idx;
- unsigned int ulp_icd_start, ulp_num = 0;
- phba->io_sgl_hndl_avbl = 0;
- phba->eh_sgl_hndl_avbl = 0;
- mem_descr_sglh = phba->init_mem;
- mem_descr_sglh += HWI_MEM_SGLH;
- if (1 == mem_descr_sglh->num_elements) {
- phba->io_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
- phba->params.ios_per_ctrl,
- GFP_KERNEL);
- if (!phba->io_sgl_hndl_base) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Mem Alloc Failed. Failing to load\n");
- return -ENOMEM;
- }
- phba->eh_sgl_hndl_base = kzalloc(sizeof(struct sgl_handle *) *
- (phba->params.icds_per_ctrl -
- phba->params.ios_per_ctrl),
- GFP_KERNEL);
- if (!phba->eh_sgl_hndl_base) {
- kfree(phba->io_sgl_hndl_base);
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Mem Alloc Failed. Failing to load\n");
- return -ENOMEM;
- }
- } else {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : HWI_MEM_SGLH is more than one element."
- "Failing to load\n");
- return -ENOMEM;
- }
- arr_index = 0;
- idx = 0;
- while (idx < mem_descr_sglh->num_elements) {
- psgl_handle = mem_descr_sglh->mem_array[idx].virtual_address;
- for (i = 0; i < (mem_descr_sglh->mem_array[idx].size /
- sizeof(struct sgl_handle)); i++) {
- if (arr_index < phba->params.ios_per_ctrl) {
- phba->io_sgl_hndl_base[arr_index] = psgl_handle;
- phba->io_sgl_hndl_avbl++;
- arr_index++;
- } else {
- phba->eh_sgl_hndl_base[arr_index -
- phba->params.ios_per_ctrl] =
- psgl_handle;
- arr_index++;
- phba->eh_sgl_hndl_avbl++;
- }
- psgl_handle++;
- }
- idx++;
- }
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : phba->io_sgl_hndl_avbl=%d"
- "phba->eh_sgl_hndl_avbl=%d\n",
- phba->io_sgl_hndl_avbl,
- phba->eh_sgl_hndl_avbl);
- mem_descr_sg = phba->init_mem;
- mem_descr_sg += HWI_MEM_SGE;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "\n BM_%d : mem_descr_sg->num_elements=%d\n",
- mem_descr_sg->num_elements);
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
- if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
- break;
- ulp_icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
- arr_index = 0;
- idx = 0;
- while (idx < mem_descr_sg->num_elements) {
- pfrag = mem_descr_sg->mem_array[idx].virtual_address;
- for (i = 0;
- i < (mem_descr_sg->mem_array[idx].size) /
- (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io);
- i++) {
- if (arr_index < phba->params.ios_per_ctrl)
- psgl_handle = phba->io_sgl_hndl_base[arr_index];
- else
- psgl_handle = phba->eh_sgl_hndl_base[arr_index -
- phba->params.ios_per_ctrl];
- psgl_handle->pfrag = pfrag;
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0);
- AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
- pfrag += phba->params.num_sge_per_io;
- psgl_handle->sgl_index = ulp_icd_start + arr_index++;
- }
- idx++;
- }
- phba->io_sgl_free_index = 0;
- phba->io_sgl_alloc_index = 0;
- phba->eh_sgl_free_index = 0;
- phba->eh_sgl_alloc_index = 0;
- return 0;
- }
- static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
- {
- int ret;
- uint16_t i, ulp_num;
- struct ulp_cid_info *ptr_cid_info = NULL;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
- ptr_cid_info = kzalloc(sizeof(struct ulp_cid_info),
- GFP_KERNEL);
- if (!ptr_cid_info) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to allocate memory"
- "for ULP_CID_INFO for ULP : %d\n",
- ulp_num);
- ret = -ENOMEM;
- goto free_memory;
- }
- /* Allocate memory for CID array */
- ptr_cid_info->cid_array = kzalloc(sizeof(void *) *
- BEISCSI_GET_CID_COUNT(phba,
- ulp_num), GFP_KERNEL);
- if (!ptr_cid_info->cid_array) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to allocate memory"
- "for CID_ARRAY for ULP : %d\n",
- ulp_num);
- kfree(ptr_cid_info);
- ptr_cid_info = NULL;
- ret = -ENOMEM;
- goto free_memory;
- }
- ptr_cid_info->avlbl_cids = BEISCSI_GET_CID_COUNT(
- phba, ulp_num);
- /* Save the cid_info_array ptr */
- phba->cid_array_info[ulp_num] = ptr_cid_info;
- }
- }
- phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) *
- phba->params.cxns_per_ctrl, GFP_KERNEL);
- if (!phba->ep_array) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to allocate memory in "
- "hba_setup_cid_tbls\n");
- ret = -ENOMEM;
- goto free_memory;
- }
- phba->conn_table = kzalloc(sizeof(struct beiscsi_conn *) *
- phba->params.cxns_per_ctrl, GFP_KERNEL);
- if (!phba->conn_table) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to allocate memory in"
- "hba_setup_cid_tbls\n");
- kfree(phba->ep_array);
- phba->ep_array = NULL;
- ret = -ENOMEM;
- goto free_memory;
- }
- for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
- ulp_num = phba->phwi_ctrlr->wrb_context[i].ulp_num;
- ptr_cid_info = phba->cid_array_info[ulp_num];
- ptr_cid_info->cid_array[ptr_cid_info->cid_alloc++] =
- phba->phwi_ctrlr->wrb_context[i].cid;
- }
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
- ptr_cid_info = phba->cid_array_info[ulp_num];
- ptr_cid_info->cid_alloc = 0;
- ptr_cid_info->cid_free = 0;
- }
- }
- return 0;
- free_memory:
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
- ptr_cid_info = phba->cid_array_info[ulp_num];
- if (ptr_cid_info) {
- kfree(ptr_cid_info->cid_array);
- kfree(ptr_cid_info);
- phba->cid_array_info[ulp_num] = NULL;
- }
- }
- }
- return ret;
- }
- static void hwi_enable_intr(struct beiscsi_hba *phba)
- {
- struct be_ctrl_info *ctrl = &phba->ctrl;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_queue_info *eq;
- u8 __iomem *addr;
- u32 reg, i;
- u32 enabled;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- addr = (u8 __iomem *) ((u8 __iomem *) ctrl->pcicfg +
- PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
- reg = ioread32(addr);
- enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
- if (!enabled) {
- reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : reg =x%08x addr=%p\n", reg, addr);
- iowrite32(reg, addr);
- }
- if (!phba->msix_enabled) {
- eq = &phwi_context->be_eq[0].q;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : eq->id=%d\n", eq->id);
- hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
- } else {
- for (i = 0; i <= phba->num_cpus; i++) {
- eq = &phwi_context->be_eq[i].q;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : eq->id=%d\n", eq->id);
- hwi_ring_eq_db(phba, eq->id, 0, 0, 1, 1);
- }
- }
- }
- static void hwi_disable_intr(struct beiscsi_hba *phba)
- {
- struct be_ctrl_info *ctrl = &phba->ctrl;
- u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
- u32 reg = ioread32(addr);
- u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
- if (enabled) {
- reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
- iowrite32(reg, addr);
- } else
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
- "BM_%d : In hwi_disable_intr, Already Disabled\n");
- }
- /**
- * beiscsi_get_boot_info()- Get the boot session info
- * @phba: The device priv structure instance
- *
- * Get the boot target info and store in driver priv structure
- *
- * return values
- * Success: 0
- * Failure: Non-Zero Value
- **/
- static int beiscsi_get_boot_info(struct beiscsi_hba *phba)
- {
- struct be_cmd_get_session_resp *session_resp;
- struct be_dma_mem nonemb_cmd;
- unsigned int tag;
- unsigned int s_handle;
- int ret = -ENOMEM;
- /* Get the session handle of the boot target */
- ret = be_mgmt_get_boot_shandle(phba, &s_handle);
- if (ret) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : No boot session\n");
- if (ret == -ENXIO)
- phba->get_boot = 0;
- return ret;
- }
- phba->get_boot = 0;
- nonemb_cmd.va = pci_zalloc_consistent(phba->ctrl.pdev,
- sizeof(*session_resp),
- &nonemb_cmd.dma);
- if (nonemb_cmd.va == NULL) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : Failed to allocate memory for"
- "beiscsi_get_session_info\n");
- return -ENOMEM;
- }
- tag = mgmt_get_session_info(phba, s_handle,
- &nonemb_cmd);
- if (!tag) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : beiscsi_get_session_info"
- " Failed\n");
- goto boot_freemem;
- }
- ret = beiscsi_mccq_compl(phba, tag, NULL, &nonemb_cmd);
- if (ret) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
- "BM_%d : beiscsi_get_session_info Failed");
- if (ret != -EBUSY)
- goto boot_freemem;
- else
- return ret;
- }
- session_resp = nonemb_cmd.va ;
- memcpy(&phba->boot_sess, &session_resp->session_info,
- sizeof(struct mgmt_session_info));
- beiscsi_logout_fw_sess(phba,
- phba->boot_sess.session_handle);
- ret = 0;
- boot_freemem:
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- return ret;
- }
- static void beiscsi_boot_release(void *data)
- {
- struct beiscsi_hba *phba = data;
- scsi_host_put(phba->shost);
- }
- static int beiscsi_setup_boot_info(struct beiscsi_hba *phba)
- {
- struct iscsi_boot_kobj *boot_kobj;
- /* it has been created previously */
- if (phba->boot_kset)
- return 0;
- /* get boot info using mgmt cmd */
- if (beiscsi_get_boot_info(phba))
- /* Try to see if we can carry on without this */
- return 0;
- phba->boot_kset = iscsi_boot_create_host_kset(phba->shost->host_no);
- if (!phba->boot_kset)
- return -ENOMEM;
- /* get a ref because the show function will ref the phba */
- if (!scsi_host_get(phba->shost))
- goto free_kset;
- boot_kobj = iscsi_boot_create_target(phba->boot_kset, 0, phba,
- beiscsi_show_boot_tgt_info,
- beiscsi_tgt_get_attr_visibility,
- beiscsi_boot_release);
- if (!boot_kobj)
- goto put_shost;
- if (!scsi_host_get(phba->shost))
- goto free_kset;
- boot_kobj = iscsi_boot_create_initiator(phba->boot_kset, 0, phba,
- beiscsi_show_boot_ini_info,
- beiscsi_ini_get_attr_visibility,
- beiscsi_boot_release);
- if (!boot_kobj)
- goto put_shost;
- if (!scsi_host_get(phba->shost))
- goto free_kset;
- boot_kobj = iscsi_boot_create_ethernet(phba->boot_kset, 0, phba,
- beiscsi_show_boot_eth_info,
- beiscsi_eth_get_attr_visibility,
- beiscsi_boot_release);
- if (!boot_kobj)
- goto put_shost;
- return 0;
- put_shost:
- scsi_host_put(phba->shost);
- free_kset:
- iscsi_boot_destroy_kset(phba->boot_kset);
- phba->boot_kset = NULL;
- return -ENOMEM;
- }
- static int beiscsi_init_port(struct beiscsi_hba *phba)
- {
- int ret;
- ret = beiscsi_init_controller(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe - Failed in"
- "beiscsi_init_controller\n");
- return ret;
- }
- ret = beiscsi_init_sgl_handle(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe - Failed in"
- "beiscsi_init_sgl_handle\n");
- goto do_cleanup_ctrlr;
- }
- if (hba_setup_cid_tbls(phba)) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed in hba_setup_cid_tbls\n");
- kfree(phba->io_sgl_hndl_base);
- kfree(phba->eh_sgl_hndl_base);
- goto do_cleanup_ctrlr;
- }
- return ret;
- do_cleanup_ctrlr:
- hwi_cleanup(phba);
- return ret;
- }
- static void hwi_purge_eq(struct beiscsi_hba *phba)
- {
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_queue_info *eq;
- struct be_eq_entry *eqe = NULL;
- int i, eq_msix;
- unsigned int num_processed;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- if (phba->msix_enabled)
- eq_msix = 1;
- else
- eq_msix = 0;
- for (i = 0; i < (phba->num_cpus + eq_msix); i++) {
- eq = &phwi_context->be_eq[i].q;
- eqe = queue_tail_node(eq);
- num_processed = 0;
- while (eqe->dw[offsetof(struct amap_eq_entry, valid) / 32]
- & EQE_VALID_MASK) {
- AMAP_SET_BITS(struct amap_eq_entry, valid, eqe, 0);
- queue_tail_inc(eq);
- eqe = queue_tail_node(eq);
- num_processed++;
- }
- if (num_processed)
- hwi_ring_eq_db(phba, eq->id, 1, num_processed, 1, 1);
- }
- }
- static void beiscsi_clean_port(struct beiscsi_hba *phba)
- {
- int mgmt_status, ulp_num;
- struct ulp_cid_info *ptr_cid_info = NULL;
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
- mgmt_status = mgmt_epfw_cleanup(phba, ulp_num);
- if (mgmt_status)
- beiscsi_log(phba, KERN_WARNING,
- BEISCSI_LOG_INIT,
- "BM_%d : mgmt_epfw_cleanup FAILED"
- " for ULP_%d\n", ulp_num);
- }
- }
- hwi_purge_eq(phba);
- hwi_cleanup(phba);
- kfree(phba->io_sgl_hndl_base);
- kfree(phba->eh_sgl_hndl_base);
- kfree(phba->ep_array);
- kfree(phba->conn_table);
- for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
- if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
- ptr_cid_info = phba->cid_array_info[ulp_num];
- if (ptr_cid_info) {
- kfree(ptr_cid_info->cid_array);
- kfree(ptr_cid_info);
- phba->cid_array_info[ulp_num] = NULL;
- }
- }
- }
- }
- /**
- * beiscsi_free_mgmt_task_handles()- Free driver CXN resources
- * @beiscsi_conn: ptr to the conn to be cleaned up
- * @task: ptr to iscsi_task resource to be freed.
- *
- * Free driver mgmt resources binded to CXN.
- **/
- void
- beiscsi_free_mgmt_task_handles(struct beiscsi_conn *beiscsi_conn,
- struct iscsi_task *task)
- {
- struct beiscsi_io_task *io_task;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- struct hwi_wrb_context *pwrb_context;
- struct hwi_controller *phwi_ctrlr;
- uint16_t cri_index = BE_GET_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
- phwi_ctrlr = phba->phwi_ctrlr;
- pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
- io_task = task->dd_data;
- if (io_task->pwrb_handle) {
- memset(io_task->pwrb_handle->pwrb, 0,
- sizeof(struct iscsi_wrb));
- free_wrb_handle(phba, pwrb_context,
- io_task->pwrb_handle);
- io_task->pwrb_handle = NULL;
- }
- if (io_task->psgl_handle) {
- spin_lock_bh(&phba->mgmt_sgl_lock);
- free_mgmt_sgl_handle(phba,
- io_task->psgl_handle);
- io_task->psgl_handle = NULL;
- spin_unlock_bh(&phba->mgmt_sgl_lock);
- }
- if (io_task->mtask_addr) {
- pci_unmap_single(phba->pcidev,
- io_task->mtask_addr,
- io_task->mtask_data_count,
- PCI_DMA_TODEVICE);
- io_task->mtask_addr = 0;
- }
- }
- /**
- * beiscsi_cleanup_task()- Free driver resources of the task
- * @task: ptr to the iscsi task
- *
- **/
- static void beiscsi_cleanup_task(struct iscsi_task *task)
- {
- struct beiscsi_io_task *io_task = task->dd_data;
- struct iscsi_conn *conn = task->conn;
- struct beiscsi_conn *beiscsi_conn = conn->dd_data;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
- struct hwi_wrb_context *pwrb_context;
- struct hwi_controller *phwi_ctrlr;
- uint16_t cri_index = BE_GET_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
- phwi_ctrlr = phba->phwi_ctrlr;
- pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
- if (io_task->cmd_bhs) {
- pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
- io_task->bhs_pa.u.a64.address);
- io_task->cmd_bhs = NULL;
- }
- if (task->sc) {
- if (io_task->pwrb_handle) {
- free_wrb_handle(phba, pwrb_context,
- io_task->pwrb_handle);
- io_task->pwrb_handle = NULL;
- }
- if (io_task->psgl_handle) {
- spin_lock(&phba->io_sgl_lock);
- free_io_sgl_handle(phba, io_task->psgl_handle);
- spin_unlock(&phba->io_sgl_lock);
- io_task->psgl_handle = NULL;
- }
- if (io_task->scsi_cmnd) {
- scsi_dma_unmap(io_task->scsi_cmnd);
- io_task->scsi_cmnd = NULL;
- }
- } else {
- if (!beiscsi_conn->login_in_progress)
- beiscsi_free_mgmt_task_handles(beiscsi_conn, task);
- }
- }
- void
- beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
- struct beiscsi_offload_params *params)
- {
- struct wrb_handle *pwrb_handle;
- struct hwi_wrb_context *pwrb_context = NULL;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- struct iscsi_task *task = beiscsi_conn->task;
- struct iscsi_session *session = task->conn->session;
- u32 doorbell = 0;
- /*
- * We can always use 0 here because it is reserved by libiscsi for
- * login/startup related tasks.
- */
- beiscsi_conn->login_in_progress = 0;
- spin_lock_bh(&session->back_lock);
- beiscsi_cleanup_task(task);
- spin_unlock_bh(&session->back_lock);
- pwrb_handle = alloc_wrb_handle(phba, beiscsi_conn->beiscsi_conn_cid,
- &pwrb_context);
- /* Check for the adapter family */
- if (is_chip_be2_be3r(phba))
- beiscsi_offload_cxn_v0(params, pwrb_handle,
- phba->init_mem,
- pwrb_context);
- else
- beiscsi_offload_cxn_v2(params, pwrb_handle,
- pwrb_context);
- be_dws_le_to_cpu(pwrb_handle->pwrb,
- sizeof(struct iscsi_target_context_update_wrb));
- doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
- doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK)
- << DB_DEF_PDU_WRB_INDEX_SHIFT;
- doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
- iowrite32(doorbell, phba->db_va +
- beiscsi_conn->doorbell_offset);
- }
- static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
- int *index, int *age)
- {
- *index = (int)itt;
- if (age)
- *age = conn->session->age;
- }
- /**
- * beiscsi_alloc_pdu - allocates pdu and related resources
- * @task: libiscsi task
- * @opcode: opcode of pdu for task
- *
- * This is called with the session lock held. It will allocate
- * the wrb and sgl if needed for the command. And it will prep
- * the pdu's itt. beiscsi_parse_pdu will later translate
- * the pdu itt to the libiscsi task itt.
- */
- static int beiscsi_alloc_pdu(struct iscsi_task *task, uint8_t opcode)
- {
- struct beiscsi_io_task *io_task = task->dd_data;
- struct iscsi_conn *conn = task->conn;
- struct beiscsi_conn *beiscsi_conn = conn->dd_data;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- struct hwi_wrb_context *pwrb_context;
- struct hwi_controller *phwi_ctrlr;
- itt_t itt;
- uint16_t cri_index = 0;
- struct beiscsi_session *beiscsi_sess = beiscsi_conn->beiscsi_sess;
- dma_addr_t paddr;
- io_task->cmd_bhs = pci_pool_alloc(beiscsi_sess->bhs_pool,
- GFP_ATOMIC, &paddr);
- if (!io_task->cmd_bhs)
- return -ENOMEM;
- io_task->bhs_pa.u.a64.address = paddr;
- io_task->libiscsi_itt = (itt_t)task->itt;
- io_task->conn = beiscsi_conn;
- task->hdr = (struct iscsi_hdr *)&io_task->cmd_bhs->iscsi_hdr;
- task->hdr_max = sizeof(struct be_cmd_bhs);
- io_task->psgl_handle = NULL;
- io_task->pwrb_handle = NULL;
- if (task->sc) {
- spin_lock(&phba->io_sgl_lock);
- io_task->psgl_handle = alloc_io_sgl_handle(phba);
- spin_unlock(&phba->io_sgl_lock);
- if (!io_task->psgl_handle) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Alloc of IO_SGL_ICD Failed"
- "for the CID : %d\n",
- beiscsi_conn->beiscsi_conn_cid);
- goto free_hndls;
- }
- io_task->pwrb_handle = alloc_wrb_handle(phba,
- beiscsi_conn->beiscsi_conn_cid,
- &io_task->pwrb_context);
- if (!io_task->pwrb_handle) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Alloc of WRB_HANDLE Failed"
- "for the CID : %d\n",
- beiscsi_conn->beiscsi_conn_cid);
- goto free_io_hndls;
- }
- } else {
- io_task->scsi_cmnd = NULL;
- if ((opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGIN) {
- beiscsi_conn->task = task;
- if (!beiscsi_conn->login_in_progress) {
- spin_lock(&phba->mgmt_sgl_lock);
- io_task->psgl_handle = (struct sgl_handle *)
- alloc_mgmt_sgl_handle(phba);
- spin_unlock(&phba->mgmt_sgl_lock);
- if (!io_task->psgl_handle) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO |
- BEISCSI_LOG_CONFIG,
- "BM_%d : Alloc of MGMT_SGL_ICD Failed"
- "for the CID : %d\n",
- beiscsi_conn->
- beiscsi_conn_cid);
- goto free_hndls;
- }
- beiscsi_conn->login_in_progress = 1;
- beiscsi_conn->plogin_sgl_handle =
- io_task->psgl_handle;
- io_task->pwrb_handle =
- alloc_wrb_handle(phba,
- beiscsi_conn->beiscsi_conn_cid,
- &io_task->pwrb_context);
- if (!io_task->pwrb_handle) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO |
- BEISCSI_LOG_CONFIG,
- "BM_%d : Alloc of WRB_HANDLE Failed"
- "for the CID : %d\n",
- beiscsi_conn->
- beiscsi_conn_cid);
- goto free_mgmt_hndls;
- }
- beiscsi_conn->plogin_wrb_handle =
- io_task->pwrb_handle;
- } else {
- io_task->psgl_handle =
- beiscsi_conn->plogin_sgl_handle;
- io_task->pwrb_handle =
- beiscsi_conn->plogin_wrb_handle;
- }
- } else {
- spin_lock(&phba->mgmt_sgl_lock);
- io_task->psgl_handle = alloc_mgmt_sgl_handle(phba);
- spin_unlock(&phba->mgmt_sgl_lock);
- if (!io_task->psgl_handle) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO |
- BEISCSI_LOG_CONFIG,
- "BM_%d : Alloc of MGMT_SGL_ICD Failed"
- "for the CID : %d\n",
- beiscsi_conn->
- beiscsi_conn_cid);
- goto free_hndls;
- }
- io_task->pwrb_handle =
- alloc_wrb_handle(phba,
- beiscsi_conn->beiscsi_conn_cid,
- &io_task->pwrb_context);
- if (!io_task->pwrb_handle) {
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
- "BM_%d : Alloc of WRB_HANDLE Failed"
- "for the CID : %d\n",
- beiscsi_conn->beiscsi_conn_cid);
- goto free_mgmt_hndls;
- }
- }
- }
- itt = (itt_t) cpu_to_be32(((unsigned int)io_task->pwrb_handle->
- wrb_index << 16) | (unsigned int)
- (io_task->psgl_handle->sgl_index));
- io_task->pwrb_handle->pio_handle = task;
- io_task->cmd_bhs->iscsi_hdr.itt = itt;
- return 0;
- free_io_hndls:
- spin_lock(&phba->io_sgl_lock);
- free_io_sgl_handle(phba, io_task->psgl_handle);
- spin_unlock(&phba->io_sgl_lock);
- goto free_hndls;
- free_mgmt_hndls:
- spin_lock(&phba->mgmt_sgl_lock);
- free_mgmt_sgl_handle(phba, io_task->psgl_handle);
- io_task->psgl_handle = NULL;
- spin_unlock(&phba->mgmt_sgl_lock);
- free_hndls:
- phwi_ctrlr = phba->phwi_ctrlr;
- cri_index = BE_GET_CRI_FROM_CID(
- beiscsi_conn->beiscsi_conn_cid);
- pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
- if (io_task->pwrb_handle)
- free_wrb_handle(phba, pwrb_context, io_task->pwrb_handle);
- io_task->pwrb_handle = NULL;
- pci_pool_free(beiscsi_sess->bhs_pool, io_task->cmd_bhs,
- io_task->bhs_pa.u.a64.address);
- io_task->cmd_bhs = NULL;
- return -ENOMEM;
- }
- int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg,
- unsigned int num_sg, unsigned int xferlen,
- unsigned int writedir)
- {
- struct beiscsi_io_task *io_task = task->dd_data;
- struct iscsi_conn *conn = task->conn;
- struct beiscsi_conn *beiscsi_conn = conn->dd_data;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- struct iscsi_wrb *pwrb = NULL;
- unsigned int doorbell = 0;
- pwrb = io_task->pwrb_handle->pwrb;
- io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0;
- io_task->bhs_len = sizeof(struct be_cmd_bhs);
- if (writedir) {
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb,
- INI_WR_CMD);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 1);
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, type, pwrb,
- INI_RD_CMD);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, dsp, pwrb, 0);
- }
- io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb_v2,
- type, pwrb);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, lun, pwrb,
- cpu_to_be16(*(unsigned short *)
- &io_task->cmd_bhs->iscsi_hdr.lun));
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb, xferlen);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb,
- io_task->pwrb_handle->wrb_index);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb,
- be32_to_cpu(task->cmdsn));
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb,
- io_task->psgl_handle->sgl_index);
- hwi_write_sgl_v2(pwrb, sg, num_sg, io_task);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb,
- io_task->pwrb_handle->wrb_index);
- if (io_task->pwrb_context->plast_wrb)
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb,
- io_task->pwrb_context->plast_wrb,
- io_task->pwrb_handle->wrb_index);
- io_task->pwrb_context->plast_wrb = pwrb;
- be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
- doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
- doorbell |= (io_task->pwrb_handle->wrb_index &
- DB_DEF_PDU_WRB_INDEX_MASK) <<
- DB_DEF_PDU_WRB_INDEX_SHIFT;
- doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
- iowrite32(doorbell, phba->db_va +
- beiscsi_conn->doorbell_offset);
- return 0;
- }
- static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
- unsigned int num_sg, unsigned int xferlen,
- unsigned int writedir)
- {
- struct beiscsi_io_task *io_task = task->dd_data;
- struct iscsi_conn *conn = task->conn;
- struct beiscsi_conn *beiscsi_conn = conn->dd_data;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- struct iscsi_wrb *pwrb = NULL;
- unsigned int doorbell = 0;
- pwrb = io_task->pwrb_handle->pwrb;
- io_task->cmd_bhs->iscsi_hdr.exp_statsn = 0;
- io_task->bhs_len = sizeof(struct be_cmd_bhs);
- if (writedir) {
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
- INI_WR_CMD);
- AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 1);
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb, type, pwrb,
- INI_RD_CMD);
- AMAP_SET_BITS(struct amap_iscsi_wrb, dsp, pwrb, 0);
- }
- io_task->wrb_type = AMAP_GET_BITS(struct amap_iscsi_wrb,
- type, pwrb);
- AMAP_SET_BITS(struct amap_iscsi_wrb, lun, pwrb,
- cpu_to_be16(*(unsigned short *)
- &io_task->cmd_bhs->iscsi_hdr.lun));
- AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb, xferlen);
- AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
- io_task->pwrb_handle->wrb_index);
- AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
- be32_to_cpu(task->cmdsn));
- AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
- io_task->psgl_handle->sgl_index);
- hwi_write_sgl(pwrb, sg, num_sg, io_task);
- AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
- io_task->pwrb_handle->wrb_index);
- if (io_task->pwrb_context->plast_wrb)
- AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb,
- io_task->pwrb_context->plast_wrb,
- io_task->pwrb_handle->wrb_index);
- io_task->pwrb_context->plast_wrb = pwrb;
- be_dws_le_to_cpu(pwrb, sizeof(struct iscsi_wrb));
- doorbell |= beiscsi_conn->beiscsi_conn_cid & DB_WRB_POST_CID_MASK;
- doorbell |= (io_task->pwrb_handle->wrb_index &
- DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
- doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
- iowrite32(doorbell, phba->db_va +
- beiscsi_conn->doorbell_offset);
- return 0;
- }
- static int beiscsi_mtask(struct iscsi_task *task)
- {
- struct beiscsi_io_task *io_task = task->dd_data;
- struct iscsi_conn *conn = task->conn;
- struct beiscsi_conn *beiscsi_conn = conn->dd_data;
- struct beiscsi_hba *phba = beiscsi_conn->phba;
- struct iscsi_wrb *pwrb = NULL;
- unsigned int doorbell = 0;
- unsigned int cid;
- unsigned int pwrb_typeoffset = 0;
- cid = beiscsi_conn->beiscsi_conn_cid;
- pwrb = io_task->pwrb_handle->pwrb;
- memset(pwrb, 0, sizeof(*pwrb));
- if (is_chip_be2_be3r(phba)) {
- AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb,
- be32_to_cpu(task->cmdsn));
- AMAP_SET_BITS(struct amap_iscsi_wrb, wrb_idx, pwrb,
- io_task->pwrb_handle->wrb_index);
- AMAP_SET_BITS(struct amap_iscsi_wrb, sgl_icd_idx, pwrb,
- io_task->psgl_handle->sgl_index);
- AMAP_SET_BITS(struct amap_iscsi_wrb, r2t_exp_dtl, pwrb,
- task->data_count);
- AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb, pwrb,
- io_task->pwrb_handle->wrb_index);
- if (io_task->pwrb_context->plast_wrb)
- AMAP_SET_BITS(struct amap_iscsi_wrb, ptr2nextwrb,
- io_task->pwrb_context->plast_wrb,
- io_task->pwrb_handle->wrb_index);
- io_task->pwrb_context->plast_wrb = pwrb;
- pwrb_typeoffset = BE_WRB_TYPE_OFFSET;
- } else {
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, cmdsn_itt, pwrb,
- be32_to_cpu(task->cmdsn));
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, wrb_idx, pwrb,
- io_task->pwrb_handle->wrb_index);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, sgl_idx, pwrb,
- io_task->psgl_handle->sgl_index);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, r2t_exp_dtl, pwrb,
- task->data_count);
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb, pwrb,
- io_task->pwrb_handle->wrb_index);
- if (io_task->pwrb_context->plast_wrb)
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2, ptr2nextwrb,
- io_task->pwrb_context->plast_wrb,
- io_task->pwrb_handle->wrb_index);
- io_task->pwrb_context->plast_wrb = pwrb;
- pwrb_typeoffset = SKH_WRB_TYPE_OFFSET;
- }
- switch (task->hdr->opcode & ISCSI_OPCODE_MASK) {
- case ISCSI_OP_LOGIN:
- AMAP_SET_BITS(struct amap_iscsi_wrb, cmdsn_itt, pwrb, 1);
- ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
- hwi_write_buffer(pwrb, task);
- break;
- case ISCSI_OP_NOOP_OUT:
- if (task->hdr->ttt != ISCSI_RESERVED_TAG) {
- ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
- if (is_chip_be2_be3r(phba))
- AMAP_SET_BITS(struct amap_iscsi_wrb,
- dmsg, pwrb, 1);
- else
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- dmsg, pwrb, 1);
- } else {
- ADAPTER_SET_WRB_TYPE(pwrb, INI_RD_CMD, pwrb_typeoffset);
- if (is_chip_be2_be3r(phba))
- AMAP_SET_BITS(struct amap_iscsi_wrb,
- dmsg, pwrb, 0);
- else
- AMAP_SET_BITS(struct amap_iscsi_wrb_v2,
- dmsg, pwrb, 0);
- }
- hwi_write_buffer(pwrb, task);
- break;
- case ISCSI_OP_TEXT:
- ADAPTER_SET_WRB_TYPE(pwrb, TGT_DM_CMD, pwrb_typeoffset);
- hwi_write_buffer(pwrb, task);
- break;
- case ISCSI_OP_SCSI_TMFUNC:
- ADAPTER_SET_WRB_TYPE(pwrb, INI_TMF_CMD, pwrb_typeoffset);
- hwi_write_buffer(pwrb, task);
- break;
- case ISCSI_OP_LOGOUT:
- ADAPTER_SET_WRB_TYPE(pwrb, HWH_TYPE_LOGOUT, pwrb_typeoffset);
- hwi_write_buffer(pwrb, task);
- break;
- default:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BM_%d : opcode =%d Not supported\n",
- task->hdr->opcode & ISCSI_OPCODE_MASK);
- return -EINVAL;
- }
- /* Set the task type */
- io_task->wrb_type = (is_chip_be2_be3r(phba)) ?
- AMAP_GET_BITS(struct amap_iscsi_wrb, type, pwrb) :
- AMAP_GET_BITS(struct amap_iscsi_wrb_v2, type, pwrb);
- doorbell |= cid & DB_WRB_POST_CID_MASK;
- doorbell |= (io_task->pwrb_handle->wrb_index &
- DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
- doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
- iowrite32(doorbell, phba->db_va +
- beiscsi_conn->doorbell_offset);
- return 0;
- }
- static int beiscsi_task_xmit(struct iscsi_task *task)
- {
- struct beiscsi_io_task *io_task = task->dd_data;
- struct scsi_cmnd *sc = task->sc;
- struct beiscsi_hba *phba = NULL;
- struct scatterlist *sg;
- int num_sg;
- unsigned int writedir = 0, xferlen = 0;
- phba = ((struct beiscsi_conn *)task->conn->dd_data)->phba;
- if (!sc)
- return beiscsi_mtask(task);
- io_task->scsi_cmnd = sc;
- num_sg = scsi_dma_map(sc);
- if (num_sg < 0) {
- struct iscsi_conn *conn = task->conn;
- struct beiscsi_hba *phba = NULL;
- phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
- beiscsi_log(phba, KERN_ERR,
- BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI,
- "BM_%d : scsi_dma_map Failed "
- "Driver_ITT : 0x%x ITT : 0x%x Xferlen : 0x%x\n",
- be32_to_cpu(io_task->cmd_bhs->iscsi_hdr.itt),
- io_task->libiscsi_itt, scsi_bufflen(sc));
- return num_sg;
- }
- xferlen = scsi_bufflen(sc);
- sg = scsi_sglist(sc);
- if (sc->sc_data_direction == DMA_TO_DEVICE)
- writedir = 1;
- else
- writedir = 0;
- return phba->iotask_fn(task, sg, num_sg, xferlen, writedir);
- }
- /**
- * beiscsi_bsg_request - handle bsg request from ISCSI transport
- * @job: job to handle
- */
- static int beiscsi_bsg_request(struct bsg_job *job)
- {
- struct Scsi_Host *shost;
- struct beiscsi_hba *phba;
- struct iscsi_bsg_request *bsg_req = job->request;
- int rc = -EINVAL;
- unsigned int tag;
- struct be_dma_mem nonemb_cmd;
- struct be_cmd_resp_hdr *resp;
- struct iscsi_bsg_reply *bsg_reply = job->reply;
- unsigned short status, extd_status;
- shost = iscsi_job_to_shost(job);
- phba = iscsi_host_priv(shost);
- switch (bsg_req->msgcode) {
- case ISCSI_BSG_HST_VENDOR:
- nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
- job->request_payload.payload_len,
- &nonemb_cmd.dma);
- if (nonemb_cmd.va == NULL) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BM_%d : Failed to allocate memory for "
- "beiscsi_bsg_request\n");
- return -ENOMEM;
- }
- tag = mgmt_vendor_specific_fw_cmd(&phba->ctrl, phba, job,
- &nonemb_cmd);
- if (!tag) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BM_%d : MBX Tag Allocation Failed\n");
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- return -EAGAIN;
- }
- rc = wait_event_interruptible_timeout(
- phba->ctrl.mcc_wait[tag],
- phba->ctrl.mcc_numtag[tag],
- msecs_to_jiffies(
- BEISCSI_HOST_MBX_TIMEOUT));
- extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
- status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
- free_mcc_tag(&phba->ctrl, tag);
- resp = (struct be_cmd_resp_hdr *)nonemb_cmd.va;
- sg_copy_from_buffer(job->reply_payload.sg_list,
- job->reply_payload.sg_cnt,
- nonemb_cmd.va, (resp->response_length
- + sizeof(*resp)));
- bsg_reply->reply_payload_rcv_len = resp->response_length;
- bsg_reply->result = status;
- bsg_job_done(job, bsg_reply->result,
- bsg_reply->reply_payload_rcv_len);
- pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
- nonemb_cmd.va, nonemb_cmd.dma);
- if (status || extd_status) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BM_%d : MBX Cmd Failed"
- " status = %d extd_status = %d\n",
- status, extd_status);
- return -EIO;
- } else {
- rc = 0;
- }
- break;
- default:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
- "BM_%d : Unsupported bsg command: 0x%x\n",
- bsg_req->msgcode);
- break;
- }
- return rc;
- }
- void beiscsi_hba_attrs_init(struct beiscsi_hba *phba)
- {
- /* Set the logging parameter */
- beiscsi_log_enable_init(phba, beiscsi_log_enable);
- }
- /*
- * beiscsi_quiesce()- Cleanup Driver resources
- * @phba: Instance Priv structure
- * @unload_state:i Clean or EEH unload state
- *
- * Free the OS and HW resources held by the driver
- **/
- static void beiscsi_quiesce(struct beiscsi_hba *phba,
- uint32_t unload_state)
- {
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_eq_obj *pbe_eq;
- unsigned int i, msix_vec;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- hwi_disable_intr(phba);
- if (phba->msix_enabled) {
- for (i = 0; i <= phba->num_cpus; i++) {
- msix_vec = phba->msix_entries[i].vector;
- synchronize_irq(msix_vec);
- free_irq(msix_vec, &phwi_context->be_eq[i]);
- kfree(phba->msi_name[i]);
- }
- } else
- if (phba->pcidev->irq) {
- synchronize_irq(phba->pcidev->irq);
- free_irq(phba->pcidev->irq, phba);
- }
- pci_disable_msix(phba->pcidev);
- cancel_delayed_work_sync(&phba->beiscsi_hw_check_task);
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- blk_iopoll_disable(&pbe_eq->iopoll);
- }
- if (unload_state == BEISCSI_CLEAN_UNLOAD) {
- destroy_workqueue(phba->wq);
- beiscsi_clean_port(phba);
- beiscsi_free_mem(phba);
- beiscsi_unmap_pci_function(phba);
- pci_free_consistent(phba->pcidev,
- phba->ctrl.mbox_mem_alloced.size,
- phba->ctrl.mbox_mem_alloced.va,
- phba->ctrl.mbox_mem_alloced.dma);
- } else {
- hwi_purge_eq(phba);
- hwi_cleanup(phba);
- }
- }
- static void beiscsi_remove(struct pci_dev *pcidev)
- {
- struct beiscsi_hba *phba = NULL;
- phba = pci_get_drvdata(pcidev);
- if (!phba) {
- dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
- return;
- }
- beiscsi_destroy_def_ifaces(phba);
- beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD);
- iscsi_boot_destroy_kset(phba->boot_kset);
- iscsi_host_remove(phba->shost);
- pci_dev_put(phba->pcidev);
- iscsi_host_free(phba->shost);
- pci_disable_pcie_error_reporting(pcidev);
- pci_set_drvdata(pcidev, NULL);
- pci_release_regions(pcidev);
- pci_disable_device(pcidev);
- }
- static void beiscsi_shutdown(struct pci_dev *pcidev)
- {
- struct beiscsi_hba *phba = NULL;
- phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
- if (!phba) {
- dev_err(&pcidev->dev, "beiscsi_shutdown called with no phba\n");
- return;
- }
- phba->state = BE_ADAPTER_STATE_SHUTDOWN;
- iscsi_host_for_each_session(phba->shost, be2iscsi_fail_session);
- beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD);
- pci_disable_device(pcidev);
- }
- static void beiscsi_msix_enable(struct beiscsi_hba *phba)
- {
- int i, status;
- for (i = 0; i <= phba->num_cpus; i++)
- phba->msix_entries[i].entry = i;
- status = pci_enable_msix_range(phba->pcidev, phba->msix_entries,
- phba->num_cpus + 1, phba->num_cpus + 1);
- if (status > 0)
- phba->msix_enabled = true;
- return;
- }
- static void be_eqd_update(struct beiscsi_hba *phba)
- {
- struct be_set_eqd set_eqd[MAX_CPUS];
- struct be_aic_obj *aic;
- struct be_eq_obj *pbe_eq;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- int eqd, i, num = 0;
- ulong now;
- u32 pps, delta;
- unsigned int tag;
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- for (i = 0; i <= phba->num_cpus; i++) {
- aic = &phba->aic_obj[i];
- pbe_eq = &phwi_context->be_eq[i];
- now = jiffies;
- if (!aic->jiffs || time_before(now, aic->jiffs) ||
- pbe_eq->cq_count < aic->eq_prev) {
- aic->jiffs = now;
- aic->eq_prev = pbe_eq->cq_count;
- continue;
- }
- delta = jiffies_to_msecs(now - aic->jiffs);
- pps = (((u32)(pbe_eq->cq_count - aic->eq_prev) * 1000) / delta);
- eqd = (pps / 1500) << 2;
- if (eqd < 8)
- eqd = 0;
- eqd = min_t(u32, eqd, phwi_context->max_eqd);
- eqd = max_t(u32, eqd, phwi_context->min_eqd);
- aic->jiffs = now;
- aic->eq_prev = pbe_eq->cq_count;
- if (eqd != aic->prev_eqd) {
- set_eqd[num].delay_multiplier = (eqd * 65)/100;
- set_eqd[num].eq_id = pbe_eq->q.id;
- aic->prev_eqd = eqd;
- num++;
- }
- }
- if (num) {
- tag = be_cmd_modify_eq_delay(phba, set_eqd, num);
- if (tag)
- beiscsi_mccq_compl(phba, tag, NULL, NULL);
- }
- }
- static void be_check_boot_session(struct beiscsi_hba *phba)
- {
- if (beiscsi_setup_boot_info(phba))
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Could not set up "
- "iSCSI boot info on async event.\n");
- }
- /*
- * beiscsi_hw_health_check()- Check adapter health
- * @work: work item to check HW health
- *
- * Check if adapter in an unrecoverable state or not.
- **/
- static void
- beiscsi_hw_health_check(struct work_struct *work)
- {
- struct beiscsi_hba *phba =
- container_of(work, struct beiscsi_hba,
- beiscsi_hw_check_task.work);
- be_eqd_update(phba);
- if (phba->state & BE_ADAPTER_CHECK_BOOT) {
- if ((phba->get_boot > 0) && (!phba->boot_kset)) {
- phba->get_boot--;
- if (!(phba->get_boot % BE_GET_BOOT_TO))
- be_check_boot_session(phba);
- } else {
- phba->state &= ~BE_ADAPTER_CHECK_BOOT;
- phba->get_boot = 0;
- }
- }
- beiscsi_ue_detect(phba);
- schedule_delayed_work(&phba->beiscsi_hw_check_task,
- msecs_to_jiffies(1000));
- }
- static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev,
- pci_channel_state_t state)
- {
- struct beiscsi_hba *phba = NULL;
- phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
- phba->state |= BE_ADAPTER_PCI_ERR;
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : EEH error detected\n");
- beiscsi_quiesce(phba, BEISCSI_EEH_UNLOAD);
- if (state == pci_channel_io_perm_failure) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : EEH : State PERM Failure");
- return PCI_ERS_RESULT_DISCONNECT;
- }
- pci_disable_device(pdev);
- /* The error could cause the FW to trigger a flash debug dump.
- * Resetting the card while flash dump is in progress
- * can cause it not to recover; wait for it to finish.
- * Wait only for first function as it is needed only once per
- * adapter.
- **/
- if (pdev->devfn == 0)
- ssleep(30);
- return PCI_ERS_RESULT_NEED_RESET;
- }
- static pci_ers_result_t beiscsi_eeh_reset(struct pci_dev *pdev)
- {
- struct beiscsi_hba *phba = NULL;
- int status = 0;
- phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : EEH Reset\n");
- status = pci_enable_device(pdev);
- if (status)
- return PCI_ERS_RESULT_DISCONNECT;
- pci_set_master(pdev);
- pci_set_power_state(pdev, PCI_D0);
- pci_restore_state(pdev);
- /* Wait for the CHIP Reset to complete */
- status = be_chk_reset_complete(phba);
- if (!status) {
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
- "BM_%d : EEH Reset Completed\n");
- } else {
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
- "BM_%d : EEH Reset Completion Failure\n");
- return PCI_ERS_RESULT_DISCONNECT;
- }
- pci_cleanup_aer_uncorrect_error_status(pdev);
- return PCI_ERS_RESULT_RECOVERED;
- }
- static void beiscsi_eeh_resume(struct pci_dev *pdev)
- {
- int ret = 0, i;
- struct be_eq_obj *pbe_eq;
- struct beiscsi_hba *phba = NULL;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
- pci_save_state(pdev);
- if (enable_msix)
- find_num_cpus(phba);
- else
- phba->num_cpus = 1;
- if (enable_msix) {
- beiscsi_msix_enable(phba);
- if (!phba->msix_enabled)
- phba->num_cpus = 1;
- }
- ret = beiscsi_cmd_reset_function(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Reset Failed\n");
- goto ret_err;
- }
- ret = be_chk_reset_complete(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to get out of reset.\n");
- goto ret_err;
- }
- beiscsi_get_params(phba);
- phba->shost->max_id = phba->params.cxns_per_ctrl;
- phba->shost->can_queue = phba->params.ios_per_ctrl;
- ret = hwi_init_controller(phba);
- for (i = 0; i < MAX_MCC_CMD; i++) {
- init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
- phba->ctrl.mcc_tag[i] = i + 1;
- phba->ctrl.mcc_numtag[i + 1] = 0;
- phba->ctrl.mcc_tag_available++;
- }
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
- be_iopoll);
- blk_iopoll_enable(&pbe_eq->iopoll);
- }
- i = (phba->msix_enabled) ? i : 0;
- /* Work item for MCC handling */
- pbe_eq = &phwi_context->be_eq[i];
- INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
- ret = beiscsi_init_irqs(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_eeh_resume - "
- "Failed to beiscsi_init_irqs\n");
- goto ret_err;
- }
- hwi_enable_intr(phba);
- phba->state &= ~BE_ADAPTER_PCI_ERR;
- return;
- ret_err:
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : AER EEH Resume Failed\n");
- }
- static int beiscsi_dev_probe(struct pci_dev *pcidev,
- const struct pci_device_id *id)
- {
- struct beiscsi_hba *phba = NULL;
- struct hwi_controller *phwi_ctrlr;
- struct hwi_context_memory *phwi_context;
- struct be_eq_obj *pbe_eq;
- int ret = 0, i;
- ret = beiscsi_enable_pci(pcidev);
- if (ret < 0) {
- dev_err(&pcidev->dev,
- "beiscsi_dev_probe - Failed to enable pci device\n");
- return ret;
- }
- phba = beiscsi_hba_alloc(pcidev);
- if (!phba) {
- dev_err(&pcidev->dev,
- "beiscsi_dev_probe - Failed in beiscsi_hba_alloc\n");
- goto disable_pci;
- }
- /* Enable EEH reporting */
- ret = pci_enable_pcie_error_reporting(pcidev);
- if (ret)
- beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
- "BM_%d : PCIe Error Reporting "
- "Enabling Failed\n");
- pci_save_state(pcidev);
- /* Initialize Driver configuration Paramters */
- beiscsi_hba_attrs_init(phba);
- phba->fw_timeout = false;
- phba->mac_addr_set = false;
- switch (pcidev->device) {
- case BE_DEVICE_ID1:
- case OC_DEVICE_ID1:
- case OC_DEVICE_ID2:
- phba->generation = BE_GEN2;
- phba->iotask_fn = beiscsi_iotask;
- break;
- case BE_DEVICE_ID2:
- case OC_DEVICE_ID3:
- phba->generation = BE_GEN3;
- phba->iotask_fn = beiscsi_iotask;
- break;
- case OC_SKH_ID1:
- phba->generation = BE_GEN4;
- phba->iotask_fn = beiscsi_iotask_v2;
- break;
- default:
- phba->generation = 0;
- }
- ret = be_ctrl_init(phba, pcidev);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe-"
- "Failed in be_ctrl_init\n");
- goto hba_free;
- }
- ret = beiscsi_cmd_reset_function(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Reset Failed\n");
- goto hba_free;
- }
- ret = be_chk_reset_complete(phba);
- if (ret) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Failed to get out of reset.\n");
- goto hba_free;
- }
- spin_lock_init(&phba->io_sgl_lock);
- spin_lock_init(&phba->mgmt_sgl_lock);
- spin_lock_init(&phba->isr_lock);
- spin_lock_init(&phba->async_pdu_lock);
- ret = mgmt_get_fw_config(&phba->ctrl, phba);
- if (ret != 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Error getting fw config\n");
- goto free_port;
- }
- if (enable_msix)
- find_num_cpus(phba);
- else
- phba->num_cpus = 1;
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "BM_%d : num_cpus = %d\n",
- phba->num_cpus);
- if (enable_msix) {
- beiscsi_msix_enable(phba);
- if (!phba->msix_enabled)
- phba->num_cpus = 1;
- }
- phba->shost->max_id = phba->params.cxns_per_ctrl;
- beiscsi_get_params(phba);
- phba->shost->can_queue = phba->params.ios_per_ctrl;
- ret = beiscsi_init_port(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe-"
- "Failed in beiscsi_init_port\n");
- goto free_port;
- }
- for (i = 0; i < MAX_MCC_CMD; i++) {
- init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
- phba->ctrl.mcc_tag[i] = i + 1;
- phba->ctrl.mcc_numtag[i + 1] = 0;
- phba->ctrl.mcc_tag_available++;
- memset(&phba->ctrl.ptag_state[i].tag_mem_state, 0,
- sizeof(struct be_dma_mem));
- }
- phba->ctrl.mcc_alloc_index = phba->ctrl.mcc_free_index = 0;
- snprintf(phba->wq_name, sizeof(phba->wq_name), "beiscsi_%02x_wq",
- phba->shost->host_no);
- phba->wq = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1, phba->wq_name);
- if (!phba->wq) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe-"
- "Failed to allocate work queue\n");
- goto free_twq;
- }
- INIT_DELAYED_WORK(&phba->beiscsi_hw_check_task,
- beiscsi_hw_health_check);
- phwi_ctrlr = phba->phwi_ctrlr;
- phwi_context = phwi_ctrlr->phwi_ctxt;
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
- be_iopoll);
- blk_iopoll_enable(&pbe_eq->iopoll);
- }
- i = (phba->msix_enabled) ? i : 0;
- /* Work item for MCC handling */
- pbe_eq = &phwi_context->be_eq[i];
- INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
- ret = beiscsi_init_irqs(phba);
- if (ret < 0) {
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : beiscsi_dev_probe-"
- "Failed to beiscsi_init_irqs\n");
- goto free_blkenbld;
- }
- hwi_enable_intr(phba);
- if (iscsi_host_add(phba->shost, &phba->pcidev->dev))
- goto free_blkenbld;
- if (beiscsi_setup_boot_info(phba))
- /*
- * log error but continue, because we may not be using
- * iscsi boot.
- */
- beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
- "BM_%d : Could not set up "
- "iSCSI boot info.\n");
- beiscsi_create_def_ifaces(phba);
- schedule_delayed_work(&phba->beiscsi_hw_check_task,
- msecs_to_jiffies(1000));
- beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
- "\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n");
- return 0;
- free_blkenbld:
- destroy_workqueue(phba->wq);
- for (i = 0; i < phba->num_cpus; i++) {
- pbe_eq = &phwi_context->be_eq[i];
- blk_iopoll_disable(&pbe_eq->iopoll);
- }
- free_twq:
- beiscsi_clean_port(phba);
- beiscsi_free_mem(phba);
- free_port:
- pci_free_consistent(phba->pcidev,
- phba->ctrl.mbox_mem_alloced.size,
- phba->ctrl.mbox_mem_alloced.va,
- phba->ctrl.mbox_mem_alloced.dma);
- beiscsi_unmap_pci_function(phba);
- hba_free:
- if (phba->msix_enabled)
- pci_disable_msix(phba->pcidev);
- pci_dev_put(phba->pcidev);
- iscsi_host_free(phba->shost);
- pci_set_drvdata(pcidev, NULL);
- disable_pci:
- pci_release_regions(pcidev);
- pci_disable_device(pcidev);
- return ret;
- }
- static struct pci_error_handlers beiscsi_eeh_handlers = {
- .error_detected = beiscsi_eeh_err_detected,
- .slot_reset = beiscsi_eeh_reset,
- .resume = beiscsi_eeh_resume,
- };
- struct iscsi_transport beiscsi_iscsi_transport = {
- .owner = THIS_MODULE,
- .name = DRV_NAME,
- .caps = CAP_RECOVERY_L0 | CAP_HDRDGST | CAP_TEXT_NEGO |
- CAP_MULTI_R2T | CAP_DATADGST | CAP_DATA_PATH_OFFLOAD,
- .create_session = beiscsi_session_create,
- .destroy_session = beiscsi_session_destroy,
- .create_conn = beiscsi_conn_create,
- .bind_conn = beiscsi_conn_bind,
- .destroy_conn = iscsi_conn_teardown,
- .attr_is_visible = be2iscsi_attr_is_visible,
- .set_iface_param = be2iscsi_iface_set_param,
- .get_iface_param = be2iscsi_iface_get_param,
- .set_param = beiscsi_set_param,
- .get_conn_param = iscsi_conn_get_param,
- .get_session_param = iscsi_session_get_param,
- .get_host_param = beiscsi_get_host_param,
- .start_conn = beiscsi_conn_start,
- .stop_conn = iscsi_conn_stop,
- .send_pdu = iscsi_conn_send_pdu,
- .xmit_task = beiscsi_task_xmit,
- .cleanup_task = beiscsi_cleanup_task,
- .alloc_pdu = beiscsi_alloc_pdu,
- .parse_pdu_itt = beiscsi_parse_pdu,
- .get_stats = beiscsi_conn_get_stats,
- .get_ep_param = beiscsi_ep_get_param,
- .ep_connect = beiscsi_ep_connect,
- .ep_poll = beiscsi_ep_poll,
- .ep_disconnect = beiscsi_ep_disconnect,
- .session_recovery_timedout = iscsi_session_recovery_timedout,
- .bsg_request = beiscsi_bsg_request,
- };
- static struct pci_driver beiscsi_pci_driver = {
- .name = DRV_NAME,
- .probe = beiscsi_dev_probe,
- .remove = beiscsi_remove,
- .shutdown = beiscsi_shutdown,
- .id_table = beiscsi_pci_id_table,
- .err_handler = &beiscsi_eeh_handlers
- };
- static int __init beiscsi_module_init(void)
- {
- int ret;
- beiscsi_scsi_transport =
- iscsi_register_transport(&beiscsi_iscsi_transport);
- if (!beiscsi_scsi_transport) {
- printk(KERN_ERR
- "beiscsi_module_init - Unable to register beiscsi transport.\n");
- return -ENOMEM;
- }
- printk(KERN_INFO "In beiscsi_module_init, tt=%p\n",
- &beiscsi_iscsi_transport);
- ret = pci_register_driver(&beiscsi_pci_driver);
- if (ret) {
- printk(KERN_ERR
- "beiscsi_module_init - Unable to register beiscsi pci driver.\n");
- goto unregister_iscsi_transport;
- }
- return 0;
- unregister_iscsi_transport:
- iscsi_unregister_transport(&beiscsi_iscsi_transport);
- return ret;
- }
- static void __exit beiscsi_module_exit(void)
- {
- pci_unregister_driver(&beiscsi_pci_driver);
- iscsi_unregister_transport(&beiscsi_iscsi_transport);
- }
- module_init(beiscsi_module_init);
- module_exit(beiscsi_module_exit);
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