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- /* QLogic qed NIC Driver
- * Copyright (c) 2015 QLogic Corporation
- *
- * This software is available under the terms of the GNU General Public License
- * (GPL) Version 2, available from the file COPYING in the main directory of
- * this source tree.
- */
- #include <linux/stddef.h>
- #include <linux/pci.h>
- #include <linux/kernel.h>
- #include <linux/slab.h>
- #include <linux/version.h>
- #include <linux/delay.h>
- #include <asm/byteorder.h>
- #include <linux/dma-mapping.h>
- #include <linux/string.h>
- #include <linux/module.h>
- #include <linux/interrupt.h>
- #include <linux/workqueue.h>
- #include <linux/ethtool.h>
- #include <linux/etherdevice.h>
- #include <linux/vmalloc.h>
- #include <linux/qed/qed_if.h>
- #include <linux/crash_dump.h>
- #include "qed.h"
- #include "qed_sp.h"
- #include "qed_dev_api.h"
- #include "qed_mcp.h"
- #include "qed_hw.h"
- static const char version[] =
- "QLogic QL4xxx 40G/100G Ethernet Driver qed " DRV_MODULE_VERSION "\n";
- MODULE_DESCRIPTION("QLogic 25G/40G/50G/100G Core Module");
- MODULE_LICENSE("GPL");
- MODULE_VERSION(DRV_MODULE_VERSION);
- #define FW_FILE_VERSION \
- __stringify(FW_MAJOR_VERSION) "." \
- __stringify(FW_MINOR_VERSION) "." \
- __stringify(FW_REVISION_VERSION) "." \
- __stringify(FW_ENGINEERING_VERSION)
- #define QED_FW_FILE_NAME \
- "qed/qed_init_values_zipped-" FW_FILE_VERSION ".bin"
- static int __init qed_init(void)
- {
- pr_notice("qed_init called\n");
- pr_info("%s", version);
- return 0;
- }
- static void __exit qed_cleanup(void)
- {
- pr_notice("qed_cleanup called\n");
- }
- module_init(qed_init);
- module_exit(qed_cleanup);
- /* Check if the DMA controller on the machine can properly handle the DMA
- * addressing required by the device.
- */
- static int qed_set_coherency_mask(struct qed_dev *cdev)
- {
- struct device *dev = &cdev->pdev->dev;
- if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) {
- if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) {
- DP_NOTICE(cdev,
- "Can't request 64-bit consistent allocations\n");
- return -EIO;
- }
- } else if (dma_set_mask(dev, DMA_BIT_MASK(32)) != 0) {
- DP_NOTICE(cdev, "Can't request 64b/32b DMA addresses\n");
- return -EIO;
- }
- return 0;
- }
- static void qed_free_pci(struct qed_dev *cdev)
- {
- struct pci_dev *pdev = cdev->pdev;
- if (cdev->doorbells)
- iounmap(cdev->doorbells);
- if (cdev->regview)
- iounmap(cdev->regview);
- if (atomic_read(&pdev->enable_cnt) == 1)
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- }
- /* Performs PCI initializations as well as initializing PCI-related parameters
- * in the device structrue. Returns 0 in case of success.
- */
- static int qed_init_pci(struct qed_dev *cdev,
- struct pci_dev *pdev)
- {
- int rc;
- cdev->pdev = pdev;
- rc = pci_enable_device(pdev);
- if (rc) {
- DP_NOTICE(cdev, "Cannot enable PCI device\n");
- goto err0;
- }
- if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
- DP_NOTICE(cdev, "No memory region found in bar #0\n");
- rc = -EIO;
- goto err1;
- }
- if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
- DP_NOTICE(cdev, "No memory region found in bar #2\n");
- rc = -EIO;
- goto err1;
- }
- if (atomic_read(&pdev->enable_cnt) == 1) {
- rc = pci_request_regions(pdev, "qed");
- if (rc) {
- DP_NOTICE(cdev,
- "Failed to request PCI memory resources\n");
- goto err1;
- }
- pci_set_master(pdev);
- pci_save_state(pdev);
- }
- if (!pci_is_pcie(pdev)) {
- DP_NOTICE(cdev, "The bus is not PCI Express\n");
- rc = -EIO;
- goto err2;
- }
- cdev->pci_params.pm_cap = pci_find_capability(pdev, PCI_CAP_ID_PM);
- if (cdev->pci_params.pm_cap == 0)
- DP_NOTICE(cdev, "Cannot find power management capability\n");
- rc = qed_set_coherency_mask(cdev);
- if (rc)
- goto err2;
- cdev->pci_params.mem_start = pci_resource_start(pdev, 0);
- cdev->pci_params.mem_end = pci_resource_end(pdev, 0);
- cdev->pci_params.irq = pdev->irq;
- cdev->regview = pci_ioremap_bar(pdev, 0);
- if (!cdev->regview) {
- DP_NOTICE(cdev, "Cannot map register space, aborting\n");
- rc = -ENOMEM;
- goto err2;
- }
- cdev->db_phys_addr = pci_resource_start(cdev->pdev, 2);
- cdev->db_size = pci_resource_len(cdev->pdev, 2);
- cdev->doorbells = ioremap_wc(cdev->db_phys_addr, cdev->db_size);
- if (!cdev->doorbells) {
- DP_NOTICE(cdev, "Cannot map doorbell space\n");
- return -ENOMEM;
- }
- return 0;
- err2:
- pci_release_regions(pdev);
- err1:
- pci_disable_device(pdev);
- err0:
- return rc;
- }
- int qed_fill_dev_info(struct qed_dev *cdev,
- struct qed_dev_info *dev_info)
- {
- struct qed_ptt *ptt;
- memset(dev_info, 0, sizeof(struct qed_dev_info));
- dev_info->num_hwfns = cdev->num_hwfns;
- dev_info->pci_mem_start = cdev->pci_params.mem_start;
- dev_info->pci_mem_end = cdev->pci_params.mem_end;
- dev_info->pci_irq = cdev->pci_params.irq;
- dev_info->is_mf = IS_MF(&cdev->hwfns[0]);
- ether_addr_copy(dev_info->hw_mac, cdev->hwfns[0].hw_info.hw_mac_addr);
- dev_info->fw_major = FW_MAJOR_VERSION;
- dev_info->fw_minor = FW_MINOR_VERSION;
- dev_info->fw_rev = FW_REVISION_VERSION;
- dev_info->fw_eng = FW_ENGINEERING_VERSION;
- dev_info->mf_mode = cdev->mf_mode;
- qed_mcp_get_mfw_ver(cdev, &dev_info->mfw_rev);
- ptt = qed_ptt_acquire(QED_LEADING_HWFN(cdev));
- if (ptt) {
- qed_mcp_get_flash_size(QED_LEADING_HWFN(cdev), ptt,
- &dev_info->flash_size);
- qed_ptt_release(QED_LEADING_HWFN(cdev), ptt);
- }
- return 0;
- }
- static void qed_free_cdev(struct qed_dev *cdev)
- {
- kfree((void *)cdev);
- }
- static struct qed_dev *qed_alloc_cdev(struct pci_dev *pdev)
- {
- struct qed_dev *cdev;
- cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
- if (!cdev)
- return cdev;
- qed_init_struct(cdev);
- return cdev;
- }
- /* Sets the requested power state */
- static int qed_set_power_state(struct qed_dev *cdev,
- pci_power_t state)
- {
- if (!cdev)
- return -ENODEV;
- DP_VERBOSE(cdev, NETIF_MSG_DRV, "Omitting Power state change\n");
- return 0;
- }
- /* probing */
- static struct qed_dev *qed_probe(struct pci_dev *pdev,
- enum qed_protocol protocol,
- u32 dp_module,
- u8 dp_level)
- {
- struct qed_dev *cdev;
- int rc;
- cdev = qed_alloc_cdev(pdev);
- if (!cdev)
- goto err0;
- cdev->protocol = protocol;
- qed_init_dp(cdev, dp_module, dp_level);
- rc = qed_init_pci(cdev, pdev);
- if (rc) {
- DP_ERR(cdev, "init pci failed\n");
- goto err1;
- }
- DP_INFO(cdev, "PCI init completed successfully\n");
- rc = qed_hw_prepare(cdev, QED_PCI_DEFAULT);
- if (rc) {
- DP_ERR(cdev, "hw prepare failed\n");
- goto err2;
- }
- DP_INFO(cdev, "qed_probe completed successffuly\n");
- return cdev;
- err2:
- qed_free_pci(cdev);
- err1:
- qed_free_cdev(cdev);
- err0:
- return NULL;
- }
- static void qed_remove(struct qed_dev *cdev)
- {
- if (!cdev)
- return;
- qed_hw_remove(cdev);
- qed_free_pci(cdev);
- qed_set_power_state(cdev, PCI_D3hot);
- qed_free_cdev(cdev);
- }
- static void qed_disable_msix(struct qed_dev *cdev)
- {
- if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
- pci_disable_msix(cdev->pdev);
- kfree(cdev->int_params.msix_table);
- } else if (cdev->int_params.out.int_mode == QED_INT_MODE_MSI) {
- pci_disable_msi(cdev->pdev);
- }
- memset(&cdev->int_params.out, 0, sizeof(struct qed_int_param));
- }
- static int qed_enable_msix(struct qed_dev *cdev,
- struct qed_int_params *int_params)
- {
- int i, rc, cnt;
- cnt = int_params->in.num_vectors;
- for (i = 0; i < cnt; i++)
- int_params->msix_table[i].entry = i;
- rc = pci_enable_msix_range(cdev->pdev, int_params->msix_table,
- int_params->in.min_msix_cnt, cnt);
- if (rc < cnt && rc >= int_params->in.min_msix_cnt &&
- (rc % cdev->num_hwfns)) {
- pci_disable_msix(cdev->pdev);
- /* If fastpath is initialized, we need at least one interrupt
- * per hwfn [and the slow path interrupts]. New requested number
- * should be a multiple of the number of hwfns.
- */
- cnt = (rc / cdev->num_hwfns) * cdev->num_hwfns;
- DP_NOTICE(cdev,
- "Trying to enable MSI-X with less vectors (%d out of %d)\n",
- cnt, int_params->in.num_vectors);
- rc = pci_enable_msix_exact(cdev->pdev,
- int_params->msix_table, cnt);
- if (!rc)
- rc = cnt;
- }
- if (rc > 0) {
- /* MSI-x configuration was achieved */
- int_params->out.int_mode = QED_INT_MODE_MSIX;
- int_params->out.num_vectors = rc;
- rc = 0;
- } else {
- DP_NOTICE(cdev,
- "Failed to enable MSI-X [Requested %d vectors][rc %d]\n",
- cnt, rc);
- }
- return rc;
- }
- /* This function outputs the int mode and the number of enabled msix vector */
- static int qed_set_int_mode(struct qed_dev *cdev, bool force_mode)
- {
- struct qed_int_params *int_params = &cdev->int_params;
- struct msix_entry *tbl;
- int rc = 0, cnt;
- switch (int_params->in.int_mode) {
- case QED_INT_MODE_MSIX:
- /* Allocate MSIX table */
- cnt = int_params->in.num_vectors;
- int_params->msix_table = kcalloc(cnt, sizeof(*tbl), GFP_KERNEL);
- if (!int_params->msix_table) {
- rc = -ENOMEM;
- goto out;
- }
- /* Enable MSIX */
- rc = qed_enable_msix(cdev, int_params);
- if (!rc)
- goto out;
- DP_NOTICE(cdev, "Failed to enable MSI-X\n");
- kfree(int_params->msix_table);
- if (force_mode)
- goto out;
- /* Fallthrough */
- case QED_INT_MODE_MSI:
- rc = pci_enable_msi(cdev->pdev);
- if (!rc) {
- int_params->out.int_mode = QED_INT_MODE_MSI;
- goto out;
- }
- DP_NOTICE(cdev, "Failed to enable MSI\n");
- if (force_mode)
- goto out;
- /* Fallthrough */
- case QED_INT_MODE_INTA:
- int_params->out.int_mode = QED_INT_MODE_INTA;
- rc = 0;
- goto out;
- default:
- DP_NOTICE(cdev, "Unknown int_mode value %d\n",
- int_params->in.int_mode);
- rc = -EINVAL;
- }
- out:
- cdev->int_coalescing_mode = QED_COAL_MODE_ENABLE;
- return rc;
- }
- static void qed_simd_handler_config(struct qed_dev *cdev, void *token,
- int index, void(*handler)(void *))
- {
- struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
- int relative_idx = index / cdev->num_hwfns;
- hwfn->simd_proto_handler[relative_idx].func = handler;
- hwfn->simd_proto_handler[relative_idx].token = token;
- }
- static void qed_simd_handler_clean(struct qed_dev *cdev, int index)
- {
- struct qed_hwfn *hwfn = &cdev->hwfns[index % cdev->num_hwfns];
- int relative_idx = index / cdev->num_hwfns;
- memset(&hwfn->simd_proto_handler[relative_idx], 0,
- sizeof(struct qed_simd_fp_handler));
- }
- static irqreturn_t qed_msix_sp_int(int irq, void *tasklet)
- {
- tasklet_schedule((struct tasklet_struct *)tasklet);
- return IRQ_HANDLED;
- }
- static irqreturn_t qed_single_int(int irq, void *dev_instance)
- {
- struct qed_dev *cdev = (struct qed_dev *)dev_instance;
- struct qed_hwfn *hwfn;
- irqreturn_t rc = IRQ_NONE;
- u64 status;
- int i, j;
- for (i = 0; i < cdev->num_hwfns; i++) {
- status = qed_int_igu_read_sisr_reg(&cdev->hwfns[i]);
- if (!status)
- continue;
- hwfn = &cdev->hwfns[i];
- /* Slowpath interrupt */
- if (unlikely(status & 0x1)) {
- tasklet_schedule(hwfn->sp_dpc);
- status &= ~0x1;
- rc = IRQ_HANDLED;
- }
- /* Fastpath interrupts */
- for (j = 0; j < 64; j++) {
- if ((0x2ULL << j) & status) {
- struct qed_simd_fp_handler *p_handler =
- &hwfn->simd_proto_handler[j];
- if (p_handler->func)
- p_handler->func(p_handler->token);
- else
- DP_NOTICE(hwfn,
- "Not calling fastpath handler as it is NULL [handler #%d, status 0x%llx]\n",
- j, status);
- status &= ~(0x2ULL << j);
- rc = IRQ_HANDLED;
- }
- }
- if (unlikely(status))
- DP_VERBOSE(hwfn, NETIF_MSG_INTR,
- "got an unknown interrupt status 0x%llx\n",
- status);
- }
- return rc;
- }
- int qed_slowpath_irq_req(struct qed_hwfn *hwfn)
- {
- struct qed_dev *cdev = hwfn->cdev;
- int rc = 0;
- u8 id;
- if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
- id = hwfn->my_id;
- snprintf(hwfn->name, NAME_SIZE, "sp-%d-%02x:%02x.%02x",
- id, cdev->pdev->bus->number,
- PCI_SLOT(cdev->pdev->devfn), hwfn->abs_pf_id);
- rc = request_irq(cdev->int_params.msix_table[id].vector,
- qed_msix_sp_int, 0, hwfn->name, hwfn->sp_dpc);
- if (!rc)
- DP_VERBOSE(hwfn, (NETIF_MSG_INTR | QED_MSG_SP),
- "Requested slowpath MSI-X\n");
- } else {
- unsigned long flags = 0;
- snprintf(cdev->name, NAME_SIZE, "%02x:%02x.%02x",
- cdev->pdev->bus->number, PCI_SLOT(cdev->pdev->devfn),
- PCI_FUNC(cdev->pdev->devfn));
- if (cdev->int_params.out.int_mode == QED_INT_MODE_INTA)
- flags |= IRQF_SHARED;
- rc = request_irq(cdev->pdev->irq, qed_single_int,
- flags, cdev->name, cdev);
- }
- return rc;
- }
- static void qed_slowpath_irq_free(struct qed_dev *cdev)
- {
- int i;
- if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
- for_each_hwfn(cdev, i) {
- if (!cdev->hwfns[i].b_int_requested)
- break;
- synchronize_irq(cdev->int_params.msix_table[i].vector);
- free_irq(cdev->int_params.msix_table[i].vector,
- cdev->hwfns[i].sp_dpc);
- }
- } else {
- if (QED_LEADING_HWFN(cdev)->b_int_requested)
- free_irq(cdev->pdev->irq, cdev);
- }
- qed_int_disable_post_isr_release(cdev);
- }
- static int qed_nic_stop(struct qed_dev *cdev)
- {
- int i, rc;
- rc = qed_hw_stop(cdev);
- for (i = 0; i < cdev->num_hwfns; i++) {
- struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
- if (p_hwfn->b_sp_dpc_enabled) {
- tasklet_disable(p_hwfn->sp_dpc);
- p_hwfn->b_sp_dpc_enabled = false;
- DP_VERBOSE(cdev, NETIF_MSG_IFDOWN,
- "Disabled sp taskelt [hwfn %d] at %p\n",
- i, p_hwfn->sp_dpc);
- }
- }
- return rc;
- }
- static int qed_nic_reset(struct qed_dev *cdev)
- {
- int rc;
- rc = qed_hw_reset(cdev);
- if (rc)
- return rc;
- qed_resc_free(cdev);
- return 0;
- }
- static int qed_nic_setup(struct qed_dev *cdev)
- {
- int rc;
- rc = qed_resc_alloc(cdev);
- if (rc)
- return rc;
- DP_INFO(cdev, "Allocated qed resources\n");
- qed_resc_setup(cdev);
- return rc;
- }
- static int qed_set_int_fp(struct qed_dev *cdev, u16 cnt)
- {
- int limit = 0;
- /* Mark the fastpath as free/used */
- cdev->int_params.fp_initialized = cnt ? true : false;
- if (cdev->int_params.out.int_mode != QED_INT_MODE_MSIX)
- limit = cdev->num_hwfns * 63;
- else if (cdev->int_params.fp_msix_cnt)
- limit = cdev->int_params.fp_msix_cnt;
- if (!limit)
- return -ENOMEM;
- return min_t(int, cnt, limit);
- }
- static int qed_get_int_fp(struct qed_dev *cdev, struct qed_int_info *info)
- {
- memset(info, 0, sizeof(struct qed_int_info));
- if (!cdev->int_params.fp_initialized) {
- DP_INFO(cdev,
- "Protocol driver requested interrupt information, but its support is not yet configured\n");
- return -EINVAL;
- }
- /* Need to expose only MSI-X information; Single IRQ is handled solely
- * by qed.
- */
- if (cdev->int_params.out.int_mode == QED_INT_MODE_MSIX) {
- int msix_base = cdev->int_params.fp_msix_base;
- info->msix_cnt = cdev->int_params.fp_msix_cnt;
- info->msix = &cdev->int_params.msix_table[msix_base];
- }
- return 0;
- }
- static int qed_slowpath_setup_int(struct qed_dev *cdev,
- enum qed_int_mode int_mode)
- {
- int rc, i;
- u8 num_vectors = 0;
- memset(&cdev->int_params, 0, sizeof(struct qed_int_params));
- cdev->int_params.in.int_mode = int_mode;
- for_each_hwfn(cdev, i)
- num_vectors += qed_int_get_num_sbs(&cdev->hwfns[i], NULL) + 1;
- cdev->int_params.in.num_vectors = num_vectors;
- /* We want a minimum of one slowpath and one fastpath vector per hwfn */
- cdev->int_params.in.min_msix_cnt = cdev->num_hwfns * 2;
- if (is_kdump_kernel()) {
- DP_INFO(cdev,
- "Kdump kernel: Limit the max number of requested MSI-X vectors to %hd\n",
- cdev->int_params.in.min_msix_cnt);
- cdev->int_params.in.num_vectors =
- cdev->int_params.in.min_msix_cnt;
- }
- rc = qed_set_int_mode(cdev, false);
- if (rc) {
- DP_ERR(cdev, "qed_slowpath_setup_int ERR\n");
- return rc;
- }
- cdev->int_params.fp_msix_base = cdev->num_hwfns;
- cdev->int_params.fp_msix_cnt = cdev->int_params.out.num_vectors -
- cdev->num_hwfns;
- return 0;
- }
- u32 qed_unzip_data(struct qed_hwfn *p_hwfn, u32 input_len,
- u8 *input_buf, u32 max_size, u8 *unzip_buf)
- {
- int rc;
- p_hwfn->stream->next_in = input_buf;
- p_hwfn->stream->avail_in = input_len;
- p_hwfn->stream->next_out = unzip_buf;
- p_hwfn->stream->avail_out = max_size;
- rc = zlib_inflateInit2(p_hwfn->stream, MAX_WBITS);
- if (rc != Z_OK) {
- DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "zlib init failed, rc = %d\n",
- rc);
- return 0;
- }
- rc = zlib_inflate(p_hwfn->stream, Z_FINISH);
- zlib_inflateEnd(p_hwfn->stream);
- if (rc != Z_OK && rc != Z_STREAM_END) {
- DP_VERBOSE(p_hwfn, NETIF_MSG_DRV, "FW unzip error: %s, rc=%d\n",
- p_hwfn->stream->msg, rc);
- return 0;
- }
- return p_hwfn->stream->total_out / 4;
- }
- static int qed_alloc_stream_mem(struct qed_dev *cdev)
- {
- int i;
- void *workspace;
- for_each_hwfn(cdev, i) {
- struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
- p_hwfn->stream = kzalloc(sizeof(*p_hwfn->stream), GFP_KERNEL);
- if (!p_hwfn->stream)
- return -ENOMEM;
- workspace = vzalloc(zlib_inflate_workspacesize());
- if (!workspace)
- return -ENOMEM;
- p_hwfn->stream->workspace = workspace;
- }
- return 0;
- }
- static void qed_free_stream_mem(struct qed_dev *cdev)
- {
- int i;
- for_each_hwfn(cdev, i) {
- struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
- if (!p_hwfn->stream)
- return;
- vfree(p_hwfn->stream->workspace);
- kfree(p_hwfn->stream);
- }
- }
- static void qed_update_pf_params(struct qed_dev *cdev,
- struct qed_pf_params *params)
- {
- int i;
- for (i = 0; i < cdev->num_hwfns; i++) {
- struct qed_hwfn *p_hwfn = &cdev->hwfns[i];
- p_hwfn->pf_params = *params;
- }
- }
- static int qed_slowpath_start(struct qed_dev *cdev,
- struct qed_slowpath_params *params)
- {
- struct qed_mcp_drv_version drv_version;
- const u8 *data = NULL;
- struct qed_hwfn *hwfn;
- int rc;
- rc = request_firmware(&cdev->firmware, QED_FW_FILE_NAME,
- &cdev->pdev->dev);
- if (rc) {
- DP_NOTICE(cdev,
- "Failed to find fw file - /lib/firmware/%s\n",
- QED_FW_FILE_NAME);
- goto err;
- }
- rc = qed_nic_setup(cdev);
- if (rc)
- goto err;
- rc = qed_slowpath_setup_int(cdev, params->int_mode);
- if (rc)
- goto err1;
- /* Allocate stream for unzipping */
- rc = qed_alloc_stream_mem(cdev);
- if (rc) {
- DP_NOTICE(cdev, "Failed to allocate stream memory\n");
- goto err2;
- }
- /* Start the slowpath */
- data = cdev->firmware->data;
- rc = qed_hw_init(cdev, true, cdev->int_params.out.int_mode,
- true, data);
- if (rc)
- goto err3;
- DP_INFO(cdev,
- "HW initialization and function start completed successfully\n");
- hwfn = QED_LEADING_HWFN(cdev);
- drv_version.version = (params->drv_major << 24) |
- (params->drv_minor << 16) |
- (params->drv_rev << 8) |
- (params->drv_eng);
- strlcpy(drv_version.name, params->name,
- MCP_DRV_VER_STR_SIZE - 4);
- rc = qed_mcp_send_drv_version(hwfn, hwfn->p_main_ptt,
- &drv_version);
- if (rc) {
- DP_NOTICE(cdev, "Failed sending drv version command\n");
- return rc;
- }
- return 0;
- err3:
- qed_free_stream_mem(cdev);
- qed_slowpath_irq_free(cdev);
- err2:
- qed_disable_msix(cdev);
- err1:
- qed_resc_free(cdev);
- err:
- release_firmware(cdev->firmware);
- return rc;
- }
- static int qed_slowpath_stop(struct qed_dev *cdev)
- {
- if (!cdev)
- return -ENODEV;
- qed_free_stream_mem(cdev);
- qed_nic_stop(cdev);
- qed_slowpath_irq_free(cdev);
- qed_disable_msix(cdev);
- qed_nic_reset(cdev);
- release_firmware(cdev->firmware);
- return 0;
- }
- static void qed_set_id(struct qed_dev *cdev, char name[NAME_SIZE],
- char ver_str[VER_SIZE])
- {
- int i;
- memcpy(cdev->name, name, NAME_SIZE);
- for_each_hwfn(cdev, i)
- snprintf(cdev->hwfns[i].name, NAME_SIZE, "%s-%d", name, i);
- memcpy(cdev->ver_str, ver_str, VER_SIZE);
- cdev->drv_type = DRV_ID_DRV_TYPE_LINUX;
- }
- static u32 qed_sb_init(struct qed_dev *cdev,
- struct qed_sb_info *sb_info,
- void *sb_virt_addr,
- dma_addr_t sb_phy_addr, u16 sb_id,
- enum qed_sb_type type)
- {
- struct qed_hwfn *p_hwfn;
- int hwfn_index;
- u16 rel_sb_id;
- u8 n_hwfns;
- u32 rc;
- /* RoCE uses single engine and CMT uses two engines. When using both
- * we force only a single engine. Storage uses only engine 0 too.
- */
- if (type == QED_SB_TYPE_L2_QUEUE)
- n_hwfns = cdev->num_hwfns;
- else
- n_hwfns = 1;
- hwfn_index = sb_id % n_hwfns;
- p_hwfn = &cdev->hwfns[hwfn_index];
- rel_sb_id = sb_id / n_hwfns;
- DP_VERBOSE(cdev, NETIF_MSG_INTR,
- "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
- hwfn_index, rel_sb_id, sb_id);
- rc = qed_int_sb_init(p_hwfn, p_hwfn->p_main_ptt, sb_info,
- sb_virt_addr, sb_phy_addr, rel_sb_id);
- return rc;
- }
- static u32 qed_sb_release(struct qed_dev *cdev,
- struct qed_sb_info *sb_info,
- u16 sb_id)
- {
- struct qed_hwfn *p_hwfn;
- int hwfn_index;
- u16 rel_sb_id;
- u32 rc;
- hwfn_index = sb_id % cdev->num_hwfns;
- p_hwfn = &cdev->hwfns[hwfn_index];
- rel_sb_id = sb_id / cdev->num_hwfns;
- DP_VERBOSE(cdev, NETIF_MSG_INTR,
- "hwfn [%d] <--[init]-- SB %04x [0x%04x upper]\n",
- hwfn_index, rel_sb_id, sb_id);
- rc = qed_int_sb_release(p_hwfn, sb_info, rel_sb_id);
- return rc;
- }
- static int qed_set_link(struct qed_dev *cdev,
- struct qed_link_params *params)
- {
- struct qed_hwfn *hwfn;
- struct qed_mcp_link_params *link_params;
- struct qed_ptt *ptt;
- int rc;
- if (!cdev)
- return -ENODEV;
- /* The link should be set only once per PF */
- hwfn = &cdev->hwfns[0];
- ptt = qed_ptt_acquire(hwfn);
- if (!ptt)
- return -EBUSY;
- link_params = qed_mcp_get_link_params(hwfn);
- if (params->override_flags & QED_LINK_OVERRIDE_SPEED_AUTONEG)
- link_params->speed.autoneg = params->autoneg;
- if (params->override_flags & QED_LINK_OVERRIDE_SPEED_ADV_SPEEDS) {
- link_params->speed.advertised_speeds = 0;
- if ((params->adv_speeds & SUPPORTED_1000baseT_Half) ||
- (params->adv_speeds & SUPPORTED_1000baseT_Full))
- link_params->speed.advertised_speeds |=
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G;
- if (params->adv_speeds & SUPPORTED_10000baseKR_Full)
- link_params->speed.advertised_speeds |=
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G;
- if (params->adv_speeds & SUPPORTED_40000baseLR4_Full)
- link_params->speed.advertised_speeds |=
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G;
- if (params->adv_speeds & 0)
- link_params->speed.advertised_speeds |=
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G;
- if (params->adv_speeds & 0)
- link_params->speed.advertised_speeds |=
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_100G;
- }
- if (params->override_flags & QED_LINK_OVERRIDE_SPEED_FORCED_SPEED)
- link_params->speed.forced_speed = params->forced_speed;
- rc = qed_mcp_set_link(hwfn, ptt, params->link_up);
- qed_ptt_release(hwfn, ptt);
- return rc;
- }
- static int qed_get_port_type(u32 media_type)
- {
- int port_type;
- switch (media_type) {
- case MEDIA_SFPP_10G_FIBER:
- case MEDIA_SFP_1G_FIBER:
- case MEDIA_XFP_FIBER:
- case MEDIA_KR:
- port_type = PORT_FIBRE;
- break;
- case MEDIA_DA_TWINAX:
- port_type = PORT_DA;
- break;
- case MEDIA_BASE_T:
- port_type = PORT_TP;
- break;
- case MEDIA_NOT_PRESENT:
- port_type = PORT_NONE;
- break;
- case MEDIA_UNSPECIFIED:
- default:
- port_type = PORT_OTHER;
- break;
- }
- return port_type;
- }
- static void qed_fill_link(struct qed_hwfn *hwfn,
- struct qed_link_output *if_link)
- {
- struct qed_mcp_link_params params;
- struct qed_mcp_link_state link;
- struct qed_mcp_link_capabilities link_caps;
- u32 media_type;
- memset(if_link, 0, sizeof(*if_link));
- /* Prepare source inputs */
- memcpy(¶ms, qed_mcp_get_link_params(hwfn), sizeof(params));
- memcpy(&link, qed_mcp_get_link_state(hwfn), sizeof(link));
- memcpy(&link_caps, qed_mcp_get_link_capabilities(hwfn),
- sizeof(link_caps));
- /* Set the link parameters to pass to protocol driver */
- if (link.link_up)
- if_link->link_up = true;
- /* TODO - at the moment assume supported and advertised speed equal */
- if_link->supported_caps = SUPPORTED_FIBRE;
- if (params.speed.autoneg)
- if_link->supported_caps |= SUPPORTED_Autoneg;
- if (params.pause.autoneg ||
- (params.pause.forced_rx && params.pause.forced_tx))
- if_link->supported_caps |= SUPPORTED_Asym_Pause;
- if (params.pause.autoneg || params.pause.forced_rx ||
- params.pause.forced_tx)
- if_link->supported_caps |= SUPPORTED_Pause;
- if_link->advertised_caps = if_link->supported_caps;
- if (params.speed.advertised_speeds &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
- if_link->advertised_caps |= SUPPORTED_1000baseT_Half |
- SUPPORTED_1000baseT_Full;
- if (params.speed.advertised_speeds &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
- if_link->advertised_caps |= SUPPORTED_10000baseKR_Full;
- if (params.speed.advertised_speeds &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
- if_link->advertised_caps |= SUPPORTED_40000baseLR4_Full;
- if (params.speed.advertised_speeds &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
- if_link->advertised_caps |= 0;
- if (params.speed.advertised_speeds &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_100G)
- if_link->advertised_caps |= 0;
- if (link_caps.speed_capabilities &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_1G)
- if_link->supported_caps |= SUPPORTED_1000baseT_Half |
- SUPPORTED_1000baseT_Full;
- if (link_caps.speed_capabilities &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_10G)
- if_link->supported_caps |= SUPPORTED_10000baseKR_Full;
- if (link_caps.speed_capabilities &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_40G)
- if_link->supported_caps |= SUPPORTED_40000baseLR4_Full;
- if (link_caps.speed_capabilities &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_50G)
- if_link->supported_caps |= 0;
- if (link_caps.speed_capabilities &
- NVM_CFG1_PORT_DRV_SPEED_CAPABILITY_MASK_100G)
- if_link->supported_caps |= 0;
- if (link.link_up)
- if_link->speed = link.speed;
- /* TODO - fill duplex properly */
- if_link->duplex = DUPLEX_FULL;
- qed_mcp_get_media_type(hwfn->cdev, &media_type);
- if_link->port = qed_get_port_type(media_type);
- if_link->autoneg = params.speed.autoneg;
- if (params.pause.autoneg)
- if_link->pause_config |= QED_LINK_PAUSE_AUTONEG_ENABLE;
- if (params.pause.forced_rx)
- if_link->pause_config |= QED_LINK_PAUSE_RX_ENABLE;
- if (params.pause.forced_tx)
- if_link->pause_config |= QED_LINK_PAUSE_TX_ENABLE;
- /* Link partner capabilities */
- if (link.partner_adv_speed &
- QED_LINK_PARTNER_SPEED_1G_HD)
- if_link->lp_caps |= SUPPORTED_1000baseT_Half;
- if (link.partner_adv_speed &
- QED_LINK_PARTNER_SPEED_1G_FD)
- if_link->lp_caps |= SUPPORTED_1000baseT_Full;
- if (link.partner_adv_speed &
- QED_LINK_PARTNER_SPEED_10G)
- if_link->lp_caps |= SUPPORTED_10000baseKR_Full;
- if (link.partner_adv_speed &
- QED_LINK_PARTNER_SPEED_40G)
- if_link->lp_caps |= SUPPORTED_40000baseLR4_Full;
- if (link.partner_adv_speed &
- QED_LINK_PARTNER_SPEED_50G)
- if_link->lp_caps |= 0;
- if (link.partner_adv_speed &
- QED_LINK_PARTNER_SPEED_100G)
- if_link->lp_caps |= 0;
- if (link.an_complete)
- if_link->lp_caps |= SUPPORTED_Autoneg;
- if (link.partner_adv_pause)
- if_link->lp_caps |= SUPPORTED_Pause;
- if (link.partner_adv_pause == QED_LINK_PARTNER_ASYMMETRIC_PAUSE ||
- link.partner_adv_pause == QED_LINK_PARTNER_BOTH_PAUSE)
- if_link->lp_caps |= SUPPORTED_Asym_Pause;
- }
- static void qed_get_current_link(struct qed_dev *cdev,
- struct qed_link_output *if_link)
- {
- qed_fill_link(&cdev->hwfns[0], if_link);
- }
- void qed_link_update(struct qed_hwfn *hwfn)
- {
- void *cookie = hwfn->cdev->ops_cookie;
- struct qed_common_cb_ops *op = hwfn->cdev->protocol_ops.common;
- struct qed_link_output if_link;
- qed_fill_link(hwfn, &if_link);
- if (IS_LEAD_HWFN(hwfn) && cookie)
- op->link_update(cookie, &if_link);
- }
- static int qed_drain(struct qed_dev *cdev)
- {
- struct qed_hwfn *hwfn;
- struct qed_ptt *ptt;
- int i, rc;
- for_each_hwfn(cdev, i) {
- hwfn = &cdev->hwfns[i];
- ptt = qed_ptt_acquire(hwfn);
- if (!ptt) {
- DP_NOTICE(hwfn, "Failed to drain NIG; No PTT\n");
- return -EBUSY;
- }
- rc = qed_mcp_drain(hwfn, ptt);
- qed_ptt_release(hwfn, ptt);
- if (rc)
- return rc;
- }
- return 0;
- }
- const struct qed_common_ops qed_common_ops_pass = {
- .probe = &qed_probe,
- .remove = &qed_remove,
- .set_power_state = &qed_set_power_state,
- .set_id = &qed_set_id,
- .update_pf_params = &qed_update_pf_params,
- .slowpath_start = &qed_slowpath_start,
- .slowpath_stop = &qed_slowpath_stop,
- .set_fp_int = &qed_set_int_fp,
- .get_fp_int = &qed_get_int_fp,
- .sb_init = &qed_sb_init,
- .sb_release = &qed_sb_release,
- .simd_handler_config = &qed_simd_handler_config,
- .simd_handler_clean = &qed_simd_handler_clean,
- .set_link = &qed_set_link,
- .get_link = &qed_get_current_link,
- .drain = &qed_drain,
- .update_msglvl = &qed_init_dp,
- .chain_alloc = &qed_chain_alloc,
- .chain_free = &qed_chain_free,
- };
- u32 qed_get_protocol_version(enum qed_protocol protocol)
- {
- switch (protocol) {
- case QED_PROTOCOL_ETH:
- return QED_ETH_INTERFACE_VERSION;
- default:
- return 0;
- }
- }
- EXPORT_SYMBOL(qed_get_protocol_version);
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