1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540154115421543154415451546154715481549155015511552155315541555155615571558155915601561156215631564156515661567156815691570157115721573157415751576157715781579158015811582158315841585158615871588158915901591159215931594159515961597159815991600160116021603160416051606160716081609161016111612161316141615161616171618161916201621162216231624162516261627162816291630163116321633163416351636163716381639164016411642164316441645164616471648164916501651165216531654165516561657165816591660166116621663166416651666166716681669167016711672167316741675167616771678167916801681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750175117521753175417551756175717581759176017611762176317641765176617671768176917701771177217731774177517761777177817791780178117821783178417851786178717881789179017911792179317941795179617971798179918001801180218031804180518061807180818091810181118121813181418151816181718181819182018211822182318241825182618271828182918301831183218331834183518361837183818391840184118421843184418451846184718481849185018511852185318541855185618571858185918601861186218631864186518661867186818691870187118721873187418751876187718781879188018811882188318841885188618871888188918901891189218931894189518961897189818991900190119021903190419051906190719081909191019111912191319141915191619171918191919201921192219231924192519261927192819291930193119321933 |
- /*
- * Copyright (C) 2003 - 2009 NetXen, Inc.
- * Copyright (C) 2009 - QLogic Corporation.
- * 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
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
- * The full GNU General Public License is included in this distribution
- * in the file called "COPYING".
- *
- */
- #include <linux/netdevice.h>
- #include <linux/delay.h>
- #include <linux/slab.h>
- #include <linux/if_vlan.h>
- #include <net/checksum.h>
- #include "netxen_nic.h"
- #include "netxen_nic_hw.h"
- struct crb_addr_pair {
- u32 addr;
- u32 data;
- };
- #define NETXEN_MAX_CRB_XFORM 60
- static unsigned int crb_addr_xform[NETXEN_MAX_CRB_XFORM];
- #define NETXEN_ADDR_ERROR (0xffffffff)
- #define crb_addr_transform(name) \
- crb_addr_xform[NETXEN_HW_PX_MAP_CRB_##name] = \
- NETXEN_HW_CRB_HUB_AGT_ADR_##name << 20
- #define NETXEN_NIC_XDMA_RESET 0x8000ff
- static void
- netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
- struct nx_host_rds_ring *rds_ring);
- static int netxen_p3_has_mn(struct netxen_adapter *adapter);
- static void crb_addr_transform_setup(void)
- {
- crb_addr_transform(XDMA);
- crb_addr_transform(TIMR);
- crb_addr_transform(SRE);
- crb_addr_transform(SQN3);
- crb_addr_transform(SQN2);
- crb_addr_transform(SQN1);
- crb_addr_transform(SQN0);
- crb_addr_transform(SQS3);
- crb_addr_transform(SQS2);
- crb_addr_transform(SQS1);
- crb_addr_transform(SQS0);
- crb_addr_transform(RPMX7);
- crb_addr_transform(RPMX6);
- crb_addr_transform(RPMX5);
- crb_addr_transform(RPMX4);
- crb_addr_transform(RPMX3);
- crb_addr_transform(RPMX2);
- crb_addr_transform(RPMX1);
- crb_addr_transform(RPMX0);
- crb_addr_transform(ROMUSB);
- crb_addr_transform(SN);
- crb_addr_transform(QMN);
- crb_addr_transform(QMS);
- crb_addr_transform(PGNI);
- crb_addr_transform(PGND);
- crb_addr_transform(PGN3);
- crb_addr_transform(PGN2);
- crb_addr_transform(PGN1);
- crb_addr_transform(PGN0);
- crb_addr_transform(PGSI);
- crb_addr_transform(PGSD);
- crb_addr_transform(PGS3);
- crb_addr_transform(PGS2);
- crb_addr_transform(PGS1);
- crb_addr_transform(PGS0);
- crb_addr_transform(PS);
- crb_addr_transform(PH);
- crb_addr_transform(NIU);
- crb_addr_transform(I2Q);
- crb_addr_transform(EG);
- crb_addr_transform(MN);
- crb_addr_transform(MS);
- crb_addr_transform(CAS2);
- crb_addr_transform(CAS1);
- crb_addr_transform(CAS0);
- crb_addr_transform(CAM);
- crb_addr_transform(C2C1);
- crb_addr_transform(C2C0);
- crb_addr_transform(SMB);
- crb_addr_transform(OCM0);
- crb_addr_transform(I2C0);
- }
- void netxen_release_rx_buffers(struct netxen_adapter *adapter)
- {
- struct netxen_recv_context *recv_ctx;
- struct nx_host_rds_ring *rds_ring;
- struct netxen_rx_buffer *rx_buf;
- int i, ring;
- recv_ctx = &adapter->recv_ctx;
- for (ring = 0; ring < adapter->max_rds_rings; ring++) {
- rds_ring = &recv_ctx->rds_rings[ring];
- for (i = 0; i < rds_ring->num_desc; ++i) {
- rx_buf = &(rds_ring->rx_buf_arr[i]);
- if (rx_buf->state == NETXEN_BUFFER_FREE)
- continue;
- pci_unmap_single(adapter->pdev,
- rx_buf->dma,
- rds_ring->dma_size,
- PCI_DMA_FROMDEVICE);
- if (rx_buf->skb != NULL)
- dev_kfree_skb_any(rx_buf->skb);
- }
- }
- }
- void netxen_release_tx_buffers(struct netxen_adapter *adapter)
- {
- struct netxen_cmd_buffer *cmd_buf;
- struct netxen_skb_frag *buffrag;
- int i, j;
- struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
- spin_lock_bh(&adapter->tx_clean_lock);
- cmd_buf = tx_ring->cmd_buf_arr;
- for (i = 0; i < tx_ring->num_desc; i++) {
- buffrag = cmd_buf->frag_array;
- if (buffrag->dma) {
- pci_unmap_single(adapter->pdev, buffrag->dma,
- buffrag->length, PCI_DMA_TODEVICE);
- buffrag->dma = 0ULL;
- }
- for (j = 1; j < cmd_buf->frag_count; j++) {
- buffrag++;
- if (buffrag->dma) {
- pci_unmap_page(adapter->pdev, buffrag->dma,
- buffrag->length,
- PCI_DMA_TODEVICE);
- buffrag->dma = 0ULL;
- }
- }
- if (cmd_buf->skb) {
- dev_kfree_skb_any(cmd_buf->skb);
- cmd_buf->skb = NULL;
- }
- cmd_buf++;
- }
- spin_unlock_bh(&adapter->tx_clean_lock);
- }
- void netxen_free_sw_resources(struct netxen_adapter *adapter)
- {
- struct netxen_recv_context *recv_ctx;
- struct nx_host_rds_ring *rds_ring;
- struct nx_host_tx_ring *tx_ring;
- int ring;
- recv_ctx = &adapter->recv_ctx;
- if (recv_ctx->rds_rings == NULL)
- goto skip_rds;
- for (ring = 0; ring < adapter->max_rds_rings; ring++) {
- rds_ring = &recv_ctx->rds_rings[ring];
- vfree(rds_ring->rx_buf_arr);
- rds_ring->rx_buf_arr = NULL;
- }
- kfree(recv_ctx->rds_rings);
- skip_rds:
- if (adapter->tx_ring == NULL)
- return;
- tx_ring = adapter->tx_ring;
- vfree(tx_ring->cmd_buf_arr);
- kfree(tx_ring);
- adapter->tx_ring = NULL;
- }
- int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
- {
- struct netxen_recv_context *recv_ctx;
- struct nx_host_rds_ring *rds_ring;
- struct nx_host_sds_ring *sds_ring;
- struct nx_host_tx_ring *tx_ring;
- struct netxen_rx_buffer *rx_buf;
- int ring, i;
- struct netxen_cmd_buffer *cmd_buf_arr;
- struct net_device *netdev = adapter->netdev;
- tx_ring = kzalloc(sizeof(struct nx_host_tx_ring), GFP_KERNEL);
- if (tx_ring == NULL)
- return -ENOMEM;
- adapter->tx_ring = tx_ring;
- tx_ring->num_desc = adapter->num_txd;
- tx_ring->txq = netdev_get_tx_queue(netdev, 0);
- cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
- if (cmd_buf_arr == NULL)
- goto err_out;
- tx_ring->cmd_buf_arr = cmd_buf_arr;
- recv_ctx = &adapter->recv_ctx;
- rds_ring = kcalloc(adapter->max_rds_rings,
- sizeof(struct nx_host_rds_ring), GFP_KERNEL);
- if (rds_ring == NULL)
- goto err_out;
- recv_ctx->rds_rings = rds_ring;
- for (ring = 0; ring < adapter->max_rds_rings; ring++) {
- rds_ring = &recv_ctx->rds_rings[ring];
- switch (ring) {
- case RCV_RING_NORMAL:
- rds_ring->num_desc = adapter->num_rxd;
- if (adapter->ahw.cut_through) {
- rds_ring->dma_size =
- NX_CT_DEFAULT_RX_BUF_LEN;
- rds_ring->skb_size =
- NX_CT_DEFAULT_RX_BUF_LEN;
- } else {
- if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
- rds_ring->dma_size =
- NX_P3_RX_BUF_MAX_LEN;
- else
- rds_ring->dma_size =
- NX_P2_RX_BUF_MAX_LEN;
- rds_ring->skb_size =
- rds_ring->dma_size + NET_IP_ALIGN;
- }
- break;
- case RCV_RING_JUMBO:
- rds_ring->num_desc = adapter->num_jumbo_rxd;
- if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
- rds_ring->dma_size =
- NX_P3_RX_JUMBO_BUF_MAX_LEN;
- else
- rds_ring->dma_size =
- NX_P2_RX_JUMBO_BUF_MAX_LEN;
- if (adapter->capabilities & NX_CAP0_HW_LRO)
- rds_ring->dma_size += NX_LRO_BUFFER_EXTRA;
- rds_ring->skb_size =
- rds_ring->dma_size + NET_IP_ALIGN;
- break;
- case RCV_RING_LRO:
- rds_ring->num_desc = adapter->num_lro_rxd;
- rds_ring->dma_size = NX_RX_LRO_BUFFER_LENGTH;
- rds_ring->skb_size = rds_ring->dma_size + NET_IP_ALIGN;
- break;
- }
- rds_ring->rx_buf_arr = vzalloc(RCV_BUFF_RINGSIZE(rds_ring));
- if (rds_ring->rx_buf_arr == NULL)
- /* free whatever was already allocated */
- goto err_out;
- INIT_LIST_HEAD(&rds_ring->free_list);
- /*
- * Now go through all of them, set reference handles
- * and put them in the queues.
- */
- rx_buf = rds_ring->rx_buf_arr;
- for (i = 0; i < rds_ring->num_desc; i++) {
- list_add_tail(&rx_buf->list,
- &rds_ring->free_list);
- rx_buf->ref_handle = i;
- rx_buf->state = NETXEN_BUFFER_FREE;
- rx_buf++;
- }
- spin_lock_init(&rds_ring->lock);
- }
- for (ring = 0; ring < adapter->max_sds_rings; ring++) {
- sds_ring = &recv_ctx->sds_rings[ring];
- sds_ring->irq = adapter->msix_entries[ring].vector;
- sds_ring->adapter = adapter;
- sds_ring->num_desc = adapter->num_rxd;
- for (i = 0; i < NUM_RCV_DESC_RINGS; i++)
- INIT_LIST_HEAD(&sds_ring->free_list[i]);
- }
- return 0;
- err_out:
- netxen_free_sw_resources(adapter);
- return -ENOMEM;
- }
- /*
- * netxen_decode_crb_addr(0 - utility to translate from internal Phantom CRB
- * address to external PCI CRB address.
- */
- static u32 netxen_decode_crb_addr(u32 addr)
- {
- int i;
- u32 base_addr, offset, pci_base;
- crb_addr_transform_setup();
- pci_base = NETXEN_ADDR_ERROR;
- base_addr = addr & 0xfff00000;
- offset = addr & 0x000fffff;
- for (i = 0; i < NETXEN_MAX_CRB_XFORM; i++) {
- if (crb_addr_xform[i] == base_addr) {
- pci_base = i << 20;
- break;
- }
- }
- if (pci_base == NETXEN_ADDR_ERROR)
- return pci_base;
- else
- return pci_base + offset;
- }
- #define NETXEN_MAX_ROM_WAIT_USEC 100
- static int netxen_wait_rom_done(struct netxen_adapter *adapter)
- {
- long timeout = 0;
- long done = 0;
- cond_resched();
- while (done == 0) {
- done = NXRD32(adapter, NETXEN_ROMUSB_GLB_STATUS);
- done &= 2;
- if (++timeout >= NETXEN_MAX_ROM_WAIT_USEC) {
- dev_err(&adapter->pdev->dev,
- "Timeout reached waiting for rom done");
- return -EIO;
- }
- udelay(1);
- }
- return 0;
- }
- static int do_rom_fast_read(struct netxen_adapter *adapter,
- int addr, int *valp)
- {
- NXWR32(adapter, NETXEN_ROMUSB_ROM_ADDRESS, addr);
- NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
- NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 3);
- NXWR32(adapter, NETXEN_ROMUSB_ROM_INSTR_OPCODE, 0xb);
- if (netxen_wait_rom_done(adapter)) {
- printk("Error waiting for rom done\n");
- return -EIO;
- }
- /* reset abyte_cnt and dummy_byte_cnt */
- NXWR32(adapter, NETXEN_ROMUSB_ROM_ABYTE_CNT, 0);
- udelay(10);
- NXWR32(adapter, NETXEN_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
- *valp = NXRD32(adapter, NETXEN_ROMUSB_ROM_RDATA);
- return 0;
- }
- static int do_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
- u8 *bytes, size_t size)
- {
- int addridx;
- int ret = 0;
- for (addridx = addr; addridx < (addr + size); addridx += 4) {
- int v;
- ret = do_rom_fast_read(adapter, addridx, &v);
- if (ret != 0)
- break;
- *(__le32 *)bytes = cpu_to_le32(v);
- bytes += 4;
- }
- return ret;
- }
- int
- netxen_rom_fast_read_words(struct netxen_adapter *adapter, int addr,
- u8 *bytes, size_t size)
- {
- int ret;
- ret = netxen_rom_lock(adapter);
- if (ret < 0)
- return ret;
- ret = do_rom_fast_read_words(adapter, addr, bytes, size);
- netxen_rom_unlock(adapter);
- return ret;
- }
- int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp)
- {
- int ret;
- if (netxen_rom_lock(adapter) != 0)
- return -EIO;
- ret = do_rom_fast_read(adapter, addr, valp);
- netxen_rom_unlock(adapter);
- return ret;
- }
- #define NETXEN_BOARDTYPE 0x4008
- #define NETXEN_BOARDNUM 0x400c
- #define NETXEN_CHIPNUM 0x4010
- int netxen_pinit_from_rom(struct netxen_adapter *adapter)
- {
- int addr, val;
- int i, n, init_delay = 0;
- struct crb_addr_pair *buf;
- unsigned offset;
- u32 off;
- /* resetall */
- netxen_rom_lock(adapter);
- NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0xfeffffff);
- netxen_rom_unlock(adapter);
- if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
- if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
- (n != 0xcafecafe) ||
- netxen_rom_fast_read(adapter, 4, &n) != 0) {
- printk(KERN_ERR "%s: ERROR Reading crb_init area: "
- "n: %08x\n", netxen_nic_driver_name, n);
- return -EIO;
- }
- offset = n & 0xffffU;
- n = (n >> 16) & 0xffffU;
- } else {
- if (netxen_rom_fast_read(adapter, 0, &n) != 0 ||
- !(n & 0x80000000)) {
- printk(KERN_ERR "%s: ERROR Reading crb_init area: "
- "n: %08x\n", netxen_nic_driver_name, n);
- return -EIO;
- }
- offset = 1;
- n &= ~0x80000000;
- }
- if (n >= 1024) {
- printk(KERN_ERR "%s:n=0x%x Error! NetXen card flash not"
- " initialized.\n", __func__, n);
- return -EIO;
- }
- buf = kcalloc(n, sizeof(struct crb_addr_pair), GFP_KERNEL);
- if (buf == NULL)
- return -ENOMEM;
- for (i = 0; i < n; i++) {
- if (netxen_rom_fast_read(adapter, 8*i + 4*offset, &val) != 0 ||
- netxen_rom_fast_read(adapter, 8*i + 4*offset + 4, &addr) != 0) {
- kfree(buf);
- return -EIO;
- }
- buf[i].addr = addr;
- buf[i].data = val;
- }
- for (i = 0; i < n; i++) {
- off = netxen_decode_crb_addr(buf[i].addr);
- if (off == NETXEN_ADDR_ERROR) {
- printk(KERN_ERR"CRB init value out of range %x\n",
- buf[i].addr);
- continue;
- }
- off += NETXEN_PCI_CRBSPACE;
- if (off & 1)
- continue;
- /* skipping cold reboot MAGIC */
- if (off == NETXEN_CAM_RAM(0x1fc))
- continue;
- if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
- if (off == (NETXEN_CRB_I2C0 + 0x1c))
- continue;
- /* do not reset PCI */
- if (off == (ROMUSB_GLB + 0xbc))
- continue;
- if (off == (ROMUSB_GLB + 0xa8))
- continue;
- if (off == (ROMUSB_GLB + 0xc8)) /* core clock */
- continue;
- if (off == (ROMUSB_GLB + 0x24)) /* MN clock */
- continue;
- if (off == (ROMUSB_GLB + 0x1c)) /* MS clock */
- continue;
- if ((off & 0x0ff00000) == NETXEN_CRB_DDR_NET)
- continue;
- if (off == (NETXEN_CRB_PEG_NET_1 + 0x18) &&
- !NX_IS_REVISION_P3P(adapter->ahw.revision_id))
- buf[i].data = 0x1020;
- /* skip the function enable register */
- if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION))
- continue;
- if (off == NETXEN_PCIE_REG(PCIE_SETUP_FUNCTION2))
- continue;
- if ((off & 0x0ff00000) == NETXEN_CRB_SMB)
- continue;
- }
- init_delay = 1;
- /* After writing this register, HW needs time for CRB */
- /* to quiet down (else crb_window returns 0xffffffff) */
- if (off == NETXEN_ROMUSB_GLB_SW_RESET) {
- init_delay = 1000;
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
- /* hold xdma in reset also */
- buf[i].data = NETXEN_NIC_XDMA_RESET;
- buf[i].data = 0x8000ff;
- }
- }
- NXWR32(adapter, off, buf[i].data);
- msleep(init_delay);
- }
- kfree(buf);
- /* disable_peg_cache_all */
- /* unreset_net_cache */
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
- val = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
- NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, (val & 0xffffff0f));
- }
- /* p2dn replyCount */
- NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0xec, 0x1e);
- /* disable_peg_cache 0 */
- NXWR32(adapter, NETXEN_CRB_PEG_NET_D + 0x4c, 8);
- /* disable_peg_cache 1 */
- NXWR32(adapter, NETXEN_CRB_PEG_NET_I + 0x4c, 8);
- /* peg_clr_all */
- /* peg_clr 0 */
- NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x8, 0);
- NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0xc, 0);
- /* peg_clr 1 */
- NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0x8, 0);
- NXWR32(adapter, NETXEN_CRB_PEG_NET_1 + 0xc, 0);
- /* peg_clr 2 */
- NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0x8, 0);
- NXWR32(adapter, NETXEN_CRB_PEG_NET_2 + 0xc, 0);
- /* peg_clr 3 */
- NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0x8, 0);
- NXWR32(adapter, NETXEN_CRB_PEG_NET_3 + 0xc, 0);
- return 0;
- }
- static struct uni_table_desc *nx_get_table_desc(const u8 *unirom, int section)
- {
- uint32_t i;
- struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
- __le32 entries = cpu_to_le32(directory->num_entries);
- for (i = 0; i < entries; i++) {
- __le32 offs = cpu_to_le32(directory->findex) +
- (i * cpu_to_le32(directory->entry_size));
- __le32 tab_type = cpu_to_le32(*((u32 *)&unirom[offs] + 8));
- if (tab_type == section)
- return (struct uni_table_desc *) &unirom[offs];
- }
- return NULL;
- }
- #define QLCNIC_FILEHEADER_SIZE (14 * 4)
- static int
- netxen_nic_validate_header(struct netxen_adapter *adapter)
- {
- const u8 *unirom = adapter->fw->data;
- struct uni_table_desc *directory = (struct uni_table_desc *) &unirom[0];
- u32 fw_file_size = adapter->fw->size;
- u32 tab_size;
- __le32 entries;
- __le32 entry_size;
- if (fw_file_size < QLCNIC_FILEHEADER_SIZE)
- return -EINVAL;
- entries = cpu_to_le32(directory->num_entries);
- entry_size = cpu_to_le32(directory->entry_size);
- tab_size = cpu_to_le32(directory->findex) + (entries * entry_size);
- if (fw_file_size < tab_size)
- return -EINVAL;
- return 0;
- }
- static int
- netxen_nic_validate_bootld(struct netxen_adapter *adapter)
- {
- struct uni_table_desc *tab_desc;
- struct uni_data_desc *descr;
- const u8 *unirom = adapter->fw->data;
- __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
- NX_UNI_BOOTLD_IDX_OFF));
- u32 offs;
- u32 tab_size;
- u32 data_size;
- tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_BOOTLD);
- if (!tab_desc)
- return -EINVAL;
- tab_size = cpu_to_le32(tab_desc->findex) +
- (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
- if (adapter->fw->size < tab_size)
- return -EINVAL;
- offs = cpu_to_le32(tab_desc->findex) +
- (cpu_to_le32(tab_desc->entry_size) * (idx));
- descr = (struct uni_data_desc *)&unirom[offs];
- data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
- if (adapter->fw->size < data_size)
- return -EINVAL;
- return 0;
- }
- static int
- netxen_nic_validate_fw(struct netxen_adapter *adapter)
- {
- struct uni_table_desc *tab_desc;
- struct uni_data_desc *descr;
- const u8 *unirom = adapter->fw->data;
- __le32 idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
- NX_UNI_FIRMWARE_IDX_OFF));
- u32 offs;
- u32 tab_size;
- u32 data_size;
- tab_desc = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_FW);
- if (!tab_desc)
- return -EINVAL;
- tab_size = cpu_to_le32(tab_desc->findex) +
- (cpu_to_le32(tab_desc->entry_size) * (idx + 1));
- if (adapter->fw->size < tab_size)
- return -EINVAL;
- offs = cpu_to_le32(tab_desc->findex) +
- (cpu_to_le32(tab_desc->entry_size) * (idx));
- descr = (struct uni_data_desc *)&unirom[offs];
- data_size = cpu_to_le32(descr->findex) + cpu_to_le32(descr->size);
- if (adapter->fw->size < data_size)
- return -EINVAL;
- return 0;
- }
- static int
- netxen_nic_validate_product_offs(struct netxen_adapter *adapter)
- {
- struct uni_table_desc *ptab_descr;
- const u8 *unirom = adapter->fw->data;
- int mn_present = (NX_IS_REVISION_P2(adapter->ahw.revision_id)) ?
- 1 : netxen_p3_has_mn(adapter);
- __le32 entries;
- __le32 entry_size;
- u32 tab_size;
- u32 i;
- ptab_descr = nx_get_table_desc(unirom, NX_UNI_DIR_SECT_PRODUCT_TBL);
- if (ptab_descr == NULL)
- return -EINVAL;
- entries = cpu_to_le32(ptab_descr->num_entries);
- entry_size = cpu_to_le32(ptab_descr->entry_size);
- tab_size = cpu_to_le32(ptab_descr->findex) + (entries * entry_size);
- if (adapter->fw->size < tab_size)
- return -EINVAL;
- nomn:
- for (i = 0; i < entries; i++) {
- __le32 flags, file_chiprev, offs;
- u8 chiprev = adapter->ahw.revision_id;
- uint32_t flagbit;
- offs = cpu_to_le32(ptab_descr->findex) +
- (i * cpu_to_le32(ptab_descr->entry_size));
- flags = cpu_to_le32(*((int *)&unirom[offs] + NX_UNI_FLAGS_OFF));
- file_chiprev = cpu_to_le32(*((int *)&unirom[offs] +
- NX_UNI_CHIP_REV_OFF));
- flagbit = mn_present ? 1 : 2;
- if ((chiprev == file_chiprev) &&
- ((1ULL << flagbit) & flags)) {
- adapter->file_prd_off = offs;
- return 0;
- }
- }
- if (mn_present && NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
- mn_present = 0;
- goto nomn;
- }
- return -EINVAL;
- }
- static int
- netxen_nic_validate_unified_romimage(struct netxen_adapter *adapter)
- {
- if (netxen_nic_validate_header(adapter)) {
- dev_err(&adapter->pdev->dev,
- "unified image: header validation failed\n");
- return -EINVAL;
- }
- if (netxen_nic_validate_product_offs(adapter)) {
- dev_err(&adapter->pdev->dev,
- "unified image: product validation failed\n");
- return -EINVAL;
- }
- if (netxen_nic_validate_bootld(adapter)) {
- dev_err(&adapter->pdev->dev,
- "unified image: bootld validation failed\n");
- return -EINVAL;
- }
- if (netxen_nic_validate_fw(adapter)) {
- dev_err(&adapter->pdev->dev,
- "unified image: firmware validation failed\n");
- return -EINVAL;
- }
- return 0;
- }
- static struct uni_data_desc *nx_get_data_desc(struct netxen_adapter *adapter,
- u32 section, u32 idx_offset)
- {
- const u8 *unirom = adapter->fw->data;
- int idx = cpu_to_le32(*((int *)&unirom[adapter->file_prd_off] +
- idx_offset));
- struct uni_table_desc *tab_desc;
- __le32 offs;
- tab_desc = nx_get_table_desc(unirom, section);
- if (tab_desc == NULL)
- return NULL;
- offs = cpu_to_le32(tab_desc->findex) +
- (cpu_to_le32(tab_desc->entry_size) * idx);
- return (struct uni_data_desc *)&unirom[offs];
- }
- static u8 *
- nx_get_bootld_offs(struct netxen_adapter *adapter)
- {
- u32 offs = NETXEN_BOOTLD_START;
- if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
- offs = cpu_to_le32((nx_get_data_desc(adapter,
- NX_UNI_DIR_SECT_BOOTLD,
- NX_UNI_BOOTLD_IDX_OFF))->findex);
- return (u8 *)&adapter->fw->data[offs];
- }
- static u8 *
- nx_get_fw_offs(struct netxen_adapter *adapter)
- {
- u32 offs = NETXEN_IMAGE_START;
- if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
- offs = cpu_to_le32((nx_get_data_desc(adapter,
- NX_UNI_DIR_SECT_FW,
- NX_UNI_FIRMWARE_IDX_OFF))->findex);
- return (u8 *)&adapter->fw->data[offs];
- }
- static __le32
- nx_get_fw_size(struct netxen_adapter *adapter)
- {
- if (adapter->fw_type == NX_UNIFIED_ROMIMAGE)
- return cpu_to_le32((nx_get_data_desc(adapter,
- NX_UNI_DIR_SECT_FW,
- NX_UNI_FIRMWARE_IDX_OFF))->size);
- else
- return cpu_to_le32(
- *(u32 *)&adapter->fw->data[NX_FW_SIZE_OFFSET]);
- }
- static __le32
- nx_get_fw_version(struct netxen_adapter *adapter)
- {
- struct uni_data_desc *fw_data_desc;
- const struct firmware *fw = adapter->fw;
- __le32 major, minor, sub;
- const u8 *ver_str;
- int i, ret = 0;
- if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
- fw_data_desc = nx_get_data_desc(adapter,
- NX_UNI_DIR_SECT_FW, NX_UNI_FIRMWARE_IDX_OFF);
- ver_str = fw->data + cpu_to_le32(fw_data_desc->findex) +
- cpu_to_le32(fw_data_desc->size) - 17;
- for (i = 0; i < 12; i++) {
- if (!strncmp(&ver_str[i], "REV=", 4)) {
- ret = sscanf(&ver_str[i+4], "%u.%u.%u ",
- &major, &minor, &sub);
- break;
- }
- }
- if (ret != 3)
- return 0;
- return major + (minor << 8) + (sub << 16);
- } else
- return cpu_to_le32(*(u32 *)&fw->data[NX_FW_VERSION_OFFSET]);
- }
- static __le32
- nx_get_bios_version(struct netxen_adapter *adapter)
- {
- const struct firmware *fw = adapter->fw;
- __le32 bios_ver, prd_off = adapter->file_prd_off;
- if (adapter->fw_type == NX_UNIFIED_ROMIMAGE) {
- bios_ver = cpu_to_le32(*((u32 *) (&fw->data[prd_off])
- + NX_UNI_BIOS_VERSION_OFF));
- return (bios_ver << 16) + ((bios_ver >> 8) & 0xff00) +
- (bios_ver >> 24);
- } else
- return cpu_to_le32(*(u32 *)&fw->data[NX_BIOS_VERSION_OFFSET]);
- }
- int
- netxen_need_fw_reset(struct netxen_adapter *adapter)
- {
- u32 count, old_count;
- u32 val, version, major, minor, build;
- int i, timeout;
- u8 fw_type;
- /* NX2031 firmware doesn't support heartbit */
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
- return 1;
- if (adapter->need_fw_reset)
- return 1;
- /* last attempt had failed */
- if (NXRD32(adapter, CRB_CMDPEG_STATE) == PHAN_INITIALIZE_FAILED)
- return 1;
- old_count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
- for (i = 0; i < 10; i++) {
- timeout = msleep_interruptible(200);
- if (timeout) {
- NXWR32(adapter, CRB_CMDPEG_STATE,
- PHAN_INITIALIZE_FAILED);
- return -EINTR;
- }
- count = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
- if (count != old_count)
- break;
- }
- /* firmware is dead */
- if (count == old_count)
- return 1;
- /* check if we have got newer or different file firmware */
- if (adapter->fw) {
- val = nx_get_fw_version(adapter);
- version = NETXEN_DECODE_VERSION(val);
- major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
- minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
- build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
- if (version > NETXEN_VERSION_CODE(major, minor, build))
- return 1;
- if (version == NETXEN_VERSION_CODE(major, minor, build) &&
- adapter->fw_type != NX_UNIFIED_ROMIMAGE) {
- val = NXRD32(adapter, NETXEN_MIU_MN_CONTROL);
- fw_type = (val & 0x4) ?
- NX_P3_CT_ROMIMAGE : NX_P3_MN_ROMIMAGE;
- if (adapter->fw_type != fw_type)
- return 1;
- }
- }
- return 0;
- }
- #define NETXEN_MIN_P3_FW_SUPP NETXEN_VERSION_CODE(4, 0, 505)
- int
- netxen_check_flash_fw_compatibility(struct netxen_adapter *adapter)
- {
- u32 flash_fw_ver, min_fw_ver;
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
- return 0;
- if (netxen_rom_fast_read(adapter,
- NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
- dev_err(&adapter->pdev->dev, "Unable to read flash fw"
- "version\n");
- return -EIO;
- }
- flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
- min_fw_ver = NETXEN_MIN_P3_FW_SUPP;
- if (flash_fw_ver >= min_fw_ver)
- return 0;
- dev_info(&adapter->pdev->dev, "Flash fw[%d.%d.%d] is < min fw supported"
- "[4.0.505]. Please update firmware on flash\n",
- _major(flash_fw_ver), _minor(flash_fw_ver),
- _build(flash_fw_ver));
- return -EINVAL;
- }
- static char *fw_name[] = {
- NX_P2_MN_ROMIMAGE_NAME,
- NX_P3_CT_ROMIMAGE_NAME,
- NX_P3_MN_ROMIMAGE_NAME,
- NX_UNIFIED_ROMIMAGE_NAME,
- NX_FLASH_ROMIMAGE_NAME,
- };
- int
- netxen_load_firmware(struct netxen_adapter *adapter)
- {
- u64 *ptr64;
- u32 i, flashaddr, size;
- const struct firmware *fw = adapter->fw;
- struct pci_dev *pdev = adapter->pdev;
- dev_info(&pdev->dev, "loading firmware from %s\n",
- fw_name[adapter->fw_type]);
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
- NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 1);
- if (fw) {
- __le64 data;
- size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
- ptr64 = (u64 *)nx_get_bootld_offs(adapter);
- flashaddr = NETXEN_BOOTLD_START;
- for (i = 0; i < size; i++) {
- data = cpu_to_le64(ptr64[i]);
- if (adapter->pci_mem_write(adapter, flashaddr, data))
- return -EIO;
- flashaddr += 8;
- }
- size = (__force u32)nx_get_fw_size(adapter) / 8;
- ptr64 = (u64 *)nx_get_fw_offs(adapter);
- flashaddr = NETXEN_IMAGE_START;
- for (i = 0; i < size; i++) {
- data = cpu_to_le64(ptr64[i]);
- if (adapter->pci_mem_write(adapter,
- flashaddr, data))
- return -EIO;
- flashaddr += 8;
- }
- size = (__force u32)nx_get_fw_size(adapter) % 8;
- if (size) {
- data = cpu_to_le64(ptr64[i]);
- if (adapter->pci_mem_write(adapter,
- flashaddr, data))
- return -EIO;
- }
- } else {
- u64 data;
- u32 hi, lo;
- size = (NETXEN_IMAGE_START - NETXEN_BOOTLD_START) / 8;
- flashaddr = NETXEN_BOOTLD_START;
- for (i = 0; i < size; i++) {
- if (netxen_rom_fast_read(adapter,
- flashaddr, (int *)&lo) != 0)
- return -EIO;
- if (netxen_rom_fast_read(adapter,
- flashaddr + 4, (int *)&hi) != 0)
- return -EIO;
- /* hi, lo are already in host endian byteorder */
- data = (((u64)hi << 32) | lo);
- if (adapter->pci_mem_write(adapter,
- flashaddr, data))
- return -EIO;
- flashaddr += 8;
- }
- }
- msleep(1);
- if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
- NXWR32(adapter, NETXEN_CRB_PEG_NET_0 + 0x18, 0x1020);
- NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001e);
- } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
- NXWR32(adapter, NETXEN_ROMUSB_GLB_SW_RESET, 0x80001d);
- else {
- NXWR32(adapter, NETXEN_ROMUSB_GLB_CHIP_CLK_CTRL, 0x3fff);
- NXWR32(adapter, NETXEN_ROMUSB_GLB_CAS_RST, 0);
- }
- return 0;
- }
- static int
- netxen_validate_firmware(struct netxen_adapter *adapter)
- {
- __le32 val;
- __le32 flash_fw_ver;
- u32 file_fw_ver, min_ver, bios;
- struct pci_dev *pdev = adapter->pdev;
- const struct firmware *fw = adapter->fw;
- u8 fw_type = adapter->fw_type;
- u32 crbinit_fix_fw;
- if (fw_type == NX_UNIFIED_ROMIMAGE) {
- if (netxen_nic_validate_unified_romimage(adapter))
- return -EINVAL;
- } else {
- val = cpu_to_le32(*(u32 *)&fw->data[NX_FW_MAGIC_OFFSET]);
- if ((__force u32)val != NETXEN_BDINFO_MAGIC)
- return -EINVAL;
- if (fw->size < NX_FW_MIN_SIZE)
- return -EINVAL;
- }
- val = nx_get_fw_version(adapter);
- if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
- min_ver = NETXEN_MIN_P3_FW_SUPP;
- else
- min_ver = NETXEN_VERSION_CODE(3, 4, 216);
- file_fw_ver = NETXEN_DECODE_VERSION(val);
- if ((_major(file_fw_ver) > _NETXEN_NIC_LINUX_MAJOR) ||
- (file_fw_ver < min_ver)) {
- dev_err(&pdev->dev,
- "%s: firmware version %d.%d.%d unsupported\n",
- fw_name[fw_type], _major(file_fw_ver), _minor(file_fw_ver),
- _build(file_fw_ver));
- return -EINVAL;
- }
- val = nx_get_bios_version(adapter);
- netxen_rom_fast_read(adapter, NX_BIOS_VERSION_OFFSET, (int *)&bios);
- if ((__force u32)val != bios) {
- dev_err(&pdev->dev, "%s: firmware bios is incompatible\n",
- fw_name[fw_type]);
- return -EINVAL;
- }
- if (netxen_rom_fast_read(adapter,
- NX_FW_VERSION_OFFSET, (int *)&flash_fw_ver)) {
- dev_err(&pdev->dev, "Unable to read flash fw version\n");
- return -EIO;
- }
- flash_fw_ver = NETXEN_DECODE_VERSION(flash_fw_ver);
- /* New fw from file is not allowed, if fw on flash is < 4.0.554 */
- crbinit_fix_fw = NETXEN_VERSION_CODE(4, 0, 554);
- if (file_fw_ver >= crbinit_fix_fw && flash_fw_ver < crbinit_fix_fw &&
- NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
- dev_err(&pdev->dev, "Incompatibility detected between driver "
- "and firmware version on flash. This configuration "
- "is not recommended. Please update the firmware on "
- "flash immediately\n");
- return -EINVAL;
- }
- /* check if flashed firmware is newer only for no-mn and P2 case*/
- if (!netxen_p3_has_mn(adapter) ||
- NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
- if (flash_fw_ver > file_fw_ver) {
- dev_info(&pdev->dev, "%s: firmware is older than flash\n",
- fw_name[fw_type]);
- return -EINVAL;
- }
- }
- NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
- return 0;
- }
- static void
- nx_get_next_fwtype(struct netxen_adapter *adapter)
- {
- u8 fw_type;
- switch (adapter->fw_type) {
- case NX_UNKNOWN_ROMIMAGE:
- fw_type = NX_UNIFIED_ROMIMAGE;
- break;
- case NX_UNIFIED_ROMIMAGE:
- if (NX_IS_REVISION_P3P(adapter->ahw.revision_id))
- fw_type = NX_FLASH_ROMIMAGE;
- else if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
- fw_type = NX_P2_MN_ROMIMAGE;
- else if (netxen_p3_has_mn(adapter))
- fw_type = NX_P3_MN_ROMIMAGE;
- else
- fw_type = NX_P3_CT_ROMIMAGE;
- break;
- case NX_P3_MN_ROMIMAGE:
- fw_type = NX_P3_CT_ROMIMAGE;
- break;
- case NX_P2_MN_ROMIMAGE:
- case NX_P3_CT_ROMIMAGE:
- default:
- fw_type = NX_FLASH_ROMIMAGE;
- break;
- }
- adapter->fw_type = fw_type;
- }
- static int
- netxen_p3_has_mn(struct netxen_adapter *adapter)
- {
- u32 capability, flashed_ver;
- capability = 0;
- /* NX2031 always had MN */
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
- return 1;
- netxen_rom_fast_read(adapter,
- NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
- flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
- if (flashed_ver >= NETXEN_VERSION_CODE(4, 0, 220)) {
- capability = NXRD32(adapter, NX_PEG_TUNE_CAPABILITY);
- if (capability & NX_PEG_TUNE_MN_PRESENT)
- return 1;
- }
- return 0;
- }
- void netxen_request_firmware(struct netxen_adapter *adapter)
- {
- struct pci_dev *pdev = adapter->pdev;
- int rc = 0;
- adapter->fw_type = NX_UNKNOWN_ROMIMAGE;
- next:
- nx_get_next_fwtype(adapter);
- if (adapter->fw_type == NX_FLASH_ROMIMAGE) {
- adapter->fw = NULL;
- } else {
- rc = request_firmware(&adapter->fw,
- fw_name[adapter->fw_type], &pdev->dev);
- if (rc != 0)
- goto next;
- rc = netxen_validate_firmware(adapter);
- if (rc != 0) {
- release_firmware(adapter->fw);
- msleep(1);
- goto next;
- }
- }
- }
- void
- netxen_release_firmware(struct netxen_adapter *adapter)
- {
- release_firmware(adapter->fw);
- adapter->fw = NULL;
- }
- int netxen_init_dummy_dma(struct netxen_adapter *adapter)
- {
- u64 addr;
- u32 hi, lo;
- if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
- return 0;
- adapter->dummy_dma.addr = pci_alloc_consistent(adapter->pdev,
- NETXEN_HOST_DUMMY_DMA_SIZE,
- &adapter->dummy_dma.phys_addr);
- if (adapter->dummy_dma.addr == NULL) {
- dev_err(&adapter->pdev->dev,
- "ERROR: Could not allocate dummy DMA memory\n");
- return -ENOMEM;
- }
- addr = (uint64_t) adapter->dummy_dma.phys_addr;
- hi = (addr >> 32) & 0xffffffff;
- lo = addr & 0xffffffff;
- NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_HI, hi);
- NXWR32(adapter, CRB_HOST_DUMMY_BUF_ADDR_LO, lo);
- return 0;
- }
- /*
- * NetXen DMA watchdog control:
- *
- * Bit 0 : enabled => R/O: 1 watchdog active, 0 inactive
- * Bit 1 : disable_request => 1 req disable dma watchdog
- * Bit 2 : enable_request => 1 req enable dma watchdog
- * Bit 3-31 : unused
- */
- void netxen_free_dummy_dma(struct netxen_adapter *adapter)
- {
- int i = 100;
- u32 ctrl;
- if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
- return;
- if (!adapter->dummy_dma.addr)
- return;
- ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
- if ((ctrl & 0x1) != 0) {
- NXWR32(adapter, NETXEN_DMA_WATCHDOG_CTRL, (ctrl | 0x2));
- while ((ctrl & 0x1) != 0) {
- msleep(50);
- ctrl = NXRD32(adapter, NETXEN_DMA_WATCHDOG_CTRL);
- if (--i == 0)
- break;
- }
- }
- if (i) {
- pci_free_consistent(adapter->pdev,
- NETXEN_HOST_DUMMY_DMA_SIZE,
- adapter->dummy_dma.addr,
- adapter->dummy_dma.phys_addr);
- adapter->dummy_dma.addr = NULL;
- } else
- dev_err(&adapter->pdev->dev, "dma_watchdog_shutdown failed\n");
- }
- int netxen_phantom_init(struct netxen_adapter *adapter, int pegtune_val)
- {
- u32 val = 0;
- int retries = 60;
- if (pegtune_val)
- return 0;
- do {
- val = NXRD32(adapter, CRB_CMDPEG_STATE);
- switch (val) {
- case PHAN_INITIALIZE_COMPLETE:
- case PHAN_INITIALIZE_ACK:
- return 0;
- case PHAN_INITIALIZE_FAILED:
- goto out_err;
- default:
- break;
- }
- msleep(500);
- } while (--retries);
- NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
- out_err:
- dev_warn(&adapter->pdev->dev, "firmware init failed\n");
- return -EIO;
- }
- static int
- netxen_receive_peg_ready(struct netxen_adapter *adapter)
- {
- u32 val = 0;
- int retries = 2000;
- do {
- val = NXRD32(adapter, CRB_RCVPEG_STATE);
- if (val == PHAN_PEG_RCV_INITIALIZED)
- return 0;
- msleep(10);
- } while (--retries);
- if (!retries) {
- printk(KERN_ERR "Receive Peg initialization not "
- "complete, state: 0x%x.\n", val);
- return -EIO;
- }
- return 0;
- }
- int netxen_init_firmware(struct netxen_adapter *adapter)
- {
- int err;
- err = netxen_receive_peg_ready(adapter);
- if (err)
- return err;
- NXWR32(adapter, CRB_NIC_CAPABILITIES_HOST, INTR_SCHEME_PERPORT);
- NXWR32(adapter, CRB_MPORT_MODE, MPORT_MULTI_FUNCTION_MODE);
- NXWR32(adapter, CRB_CMDPEG_STATE, PHAN_INITIALIZE_ACK);
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
- NXWR32(adapter, CRB_NIC_MSI_MODE_HOST, MSI_MODE_MULTIFUNC);
- return err;
- }
- static void
- netxen_handle_linkevent(struct netxen_adapter *adapter, nx_fw_msg_t *msg)
- {
- u32 cable_OUI;
- u16 cable_len;
- u16 link_speed;
- u8 link_status, module, duplex, autoneg;
- struct net_device *netdev = adapter->netdev;
- adapter->has_link_events = 1;
- cable_OUI = msg->body[1] & 0xffffffff;
- cable_len = (msg->body[1] >> 32) & 0xffff;
- link_speed = (msg->body[1] >> 48) & 0xffff;
- link_status = msg->body[2] & 0xff;
- duplex = (msg->body[2] >> 16) & 0xff;
- autoneg = (msg->body[2] >> 24) & 0xff;
- module = (msg->body[2] >> 8) & 0xff;
- if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLE) {
- printk(KERN_INFO "%s: unsupported cable: OUI 0x%x, length %d\n",
- netdev->name, cable_OUI, cable_len);
- } else if (module == LINKEVENT_MODULE_TWINAX_UNSUPPORTED_CABLELEN) {
- printk(KERN_INFO "%s: unsupported cable length %d\n",
- netdev->name, cable_len);
- }
- /* update link parameters */
- if (duplex == LINKEVENT_FULL_DUPLEX)
- adapter->link_duplex = DUPLEX_FULL;
- else
- adapter->link_duplex = DUPLEX_HALF;
- adapter->module_type = module;
- adapter->link_autoneg = autoneg;
- adapter->link_speed = link_speed;
- netxen_advert_link_change(adapter, link_status);
- }
- static void
- netxen_handle_fw_message(int desc_cnt, int index,
- struct nx_host_sds_ring *sds_ring)
- {
- nx_fw_msg_t msg;
- struct status_desc *desc;
- int i = 0, opcode;
- while (desc_cnt > 0 && i < 8) {
- desc = &sds_ring->desc_head[index];
- msg.words[i++] = le64_to_cpu(desc->status_desc_data[0]);
- msg.words[i++] = le64_to_cpu(desc->status_desc_data[1]);
- index = get_next_index(index, sds_ring->num_desc);
- desc_cnt--;
- }
- opcode = netxen_get_nic_msg_opcode(msg.body[0]);
- switch (opcode) {
- case NX_NIC_C2H_OPCODE_GET_LINKEVENT_RESPONSE:
- netxen_handle_linkevent(sds_ring->adapter, &msg);
- break;
- default:
- break;
- }
- }
- static int
- netxen_alloc_rx_skb(struct netxen_adapter *adapter,
- struct nx_host_rds_ring *rds_ring,
- struct netxen_rx_buffer *buffer)
- {
- struct sk_buff *skb;
- dma_addr_t dma;
- struct pci_dev *pdev = adapter->pdev;
- buffer->skb = netdev_alloc_skb(adapter->netdev, rds_ring->skb_size);
- if (!buffer->skb)
- return 1;
- skb = buffer->skb;
- if (!adapter->ahw.cut_through)
- skb_reserve(skb, 2);
- dma = pci_map_single(pdev, skb->data,
- rds_ring->dma_size, PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(pdev, dma)) {
- dev_kfree_skb_any(skb);
- buffer->skb = NULL;
- return 1;
- }
- buffer->skb = skb;
- buffer->dma = dma;
- buffer->state = NETXEN_BUFFER_BUSY;
- return 0;
- }
- static struct sk_buff *netxen_process_rxbuf(struct netxen_adapter *adapter,
- struct nx_host_rds_ring *rds_ring, u16 index, u16 cksum)
- {
- struct netxen_rx_buffer *buffer;
- struct sk_buff *skb;
- buffer = &rds_ring->rx_buf_arr[index];
- pci_unmap_single(adapter->pdev, buffer->dma, rds_ring->dma_size,
- PCI_DMA_FROMDEVICE);
- skb = buffer->skb;
- if (!skb)
- goto no_skb;
- if (likely((adapter->netdev->features & NETIF_F_RXCSUM)
- && cksum == STATUS_CKSUM_OK)) {
- adapter->stats.csummed++;
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- } else
- skb->ip_summed = CHECKSUM_NONE;
- buffer->skb = NULL;
- no_skb:
- buffer->state = NETXEN_BUFFER_FREE;
- return skb;
- }
- static struct netxen_rx_buffer *
- netxen_process_rcv(struct netxen_adapter *adapter,
- struct nx_host_sds_ring *sds_ring,
- int ring, u64 sts_data0)
- {
- struct net_device *netdev = adapter->netdev;
- struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
- struct netxen_rx_buffer *buffer;
- struct sk_buff *skb;
- struct nx_host_rds_ring *rds_ring;
- int index, length, cksum, pkt_offset;
- if (unlikely(ring >= adapter->max_rds_rings))
- return NULL;
- rds_ring = &recv_ctx->rds_rings[ring];
- index = netxen_get_sts_refhandle(sts_data0);
- if (unlikely(index >= rds_ring->num_desc))
- return NULL;
- buffer = &rds_ring->rx_buf_arr[index];
- length = netxen_get_sts_totallength(sts_data0);
- cksum = netxen_get_sts_status(sts_data0);
- pkt_offset = netxen_get_sts_pkt_offset(sts_data0);
- skb = netxen_process_rxbuf(adapter, rds_ring, index, cksum);
- if (!skb)
- return buffer;
- if (length > rds_ring->skb_size)
- skb_put(skb, rds_ring->skb_size);
- else
- skb_put(skb, length);
- if (pkt_offset)
- skb_pull(skb, pkt_offset);
- skb->protocol = eth_type_trans(skb, netdev);
- napi_gro_receive(&sds_ring->napi, skb);
- adapter->stats.rx_pkts++;
- adapter->stats.rxbytes += length;
- return buffer;
- }
- #define TCP_HDR_SIZE 20
- #define TCP_TS_OPTION_SIZE 12
- #define TCP_TS_HDR_SIZE (TCP_HDR_SIZE + TCP_TS_OPTION_SIZE)
- static struct netxen_rx_buffer *
- netxen_process_lro(struct netxen_adapter *adapter,
- struct nx_host_sds_ring *sds_ring,
- int ring, u64 sts_data0, u64 sts_data1)
- {
- struct net_device *netdev = adapter->netdev;
- struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
- struct netxen_rx_buffer *buffer;
- struct sk_buff *skb;
- struct nx_host_rds_ring *rds_ring;
- struct iphdr *iph;
- struct tcphdr *th;
- bool push, timestamp;
- int l2_hdr_offset, l4_hdr_offset;
- int index;
- u16 lro_length, length, data_offset;
- u32 seq_number;
- u8 vhdr_len = 0;
- if (unlikely(ring >= adapter->max_rds_rings))
- return NULL;
- rds_ring = &recv_ctx->rds_rings[ring];
- index = netxen_get_lro_sts_refhandle(sts_data0);
- if (unlikely(index >= rds_ring->num_desc))
- return NULL;
- buffer = &rds_ring->rx_buf_arr[index];
- timestamp = netxen_get_lro_sts_timestamp(sts_data0);
- lro_length = netxen_get_lro_sts_length(sts_data0);
- l2_hdr_offset = netxen_get_lro_sts_l2_hdr_offset(sts_data0);
- l4_hdr_offset = netxen_get_lro_sts_l4_hdr_offset(sts_data0);
- push = netxen_get_lro_sts_push_flag(sts_data0);
- seq_number = netxen_get_lro_sts_seq_number(sts_data1);
- skb = netxen_process_rxbuf(adapter, rds_ring, index, STATUS_CKSUM_OK);
- if (!skb)
- return buffer;
- if (timestamp)
- data_offset = l4_hdr_offset + TCP_TS_HDR_SIZE;
- else
- data_offset = l4_hdr_offset + TCP_HDR_SIZE;
- skb_put(skb, lro_length + data_offset);
- skb_pull(skb, l2_hdr_offset);
- skb->protocol = eth_type_trans(skb, netdev);
- if (skb->protocol == htons(ETH_P_8021Q))
- vhdr_len = VLAN_HLEN;
- iph = (struct iphdr *)(skb->data + vhdr_len);
- th = (struct tcphdr *)((skb->data + vhdr_len) + (iph->ihl << 2));
- length = (iph->ihl << 2) + (th->doff << 2) + lro_length;
- csum_replace2(&iph->check, iph->tot_len, htons(length));
- iph->tot_len = htons(length);
- th->psh = push;
- th->seq = htonl(seq_number);
- length = skb->len;
- if (adapter->flags & NETXEN_FW_MSS_CAP)
- skb_shinfo(skb)->gso_size = netxen_get_lro_sts_mss(sts_data1);
- netif_receive_skb(skb);
- adapter->stats.lro_pkts++;
- adapter->stats.rxbytes += length;
- return buffer;
- }
- #define netxen_merge_rx_buffers(list, head) \
- do { list_splice_tail_init(list, head); } while (0);
- int
- netxen_process_rcv_ring(struct nx_host_sds_ring *sds_ring, int max)
- {
- struct netxen_adapter *adapter = sds_ring->adapter;
- struct list_head *cur;
- struct status_desc *desc;
- struct netxen_rx_buffer *rxbuf;
- u32 consumer = sds_ring->consumer;
- int count = 0;
- u64 sts_data0, sts_data1;
- int opcode, ring = 0, desc_cnt;
- while (count < max) {
- desc = &sds_ring->desc_head[consumer];
- sts_data0 = le64_to_cpu(desc->status_desc_data[0]);
- if (!(sts_data0 & STATUS_OWNER_HOST))
- break;
- desc_cnt = netxen_get_sts_desc_cnt(sts_data0);
- opcode = netxen_get_sts_opcode(sts_data0);
- switch (opcode) {
- case NETXEN_NIC_RXPKT_DESC:
- case NETXEN_OLD_RXPKT_DESC:
- case NETXEN_NIC_SYN_OFFLOAD:
- ring = netxen_get_sts_type(sts_data0);
- rxbuf = netxen_process_rcv(adapter, sds_ring,
- ring, sts_data0);
- break;
- case NETXEN_NIC_LRO_DESC:
- ring = netxen_get_lro_sts_type(sts_data0);
- sts_data1 = le64_to_cpu(desc->status_desc_data[1]);
- rxbuf = netxen_process_lro(adapter, sds_ring,
- ring, sts_data0, sts_data1);
- break;
- case NETXEN_NIC_RESPONSE_DESC:
- netxen_handle_fw_message(desc_cnt, consumer, sds_ring);
- default:
- goto skip;
- }
- WARN_ON(desc_cnt > 1);
- if (rxbuf)
- list_add_tail(&rxbuf->list, &sds_ring->free_list[ring]);
- skip:
- for (; desc_cnt > 0; desc_cnt--) {
- desc = &sds_ring->desc_head[consumer];
- desc->status_desc_data[0] =
- cpu_to_le64(STATUS_OWNER_PHANTOM);
- consumer = get_next_index(consumer, sds_ring->num_desc);
- }
- count++;
- }
- for (ring = 0; ring < adapter->max_rds_rings; ring++) {
- struct nx_host_rds_ring *rds_ring =
- &adapter->recv_ctx.rds_rings[ring];
- if (!list_empty(&sds_ring->free_list[ring])) {
- list_for_each(cur, &sds_ring->free_list[ring]) {
- rxbuf = list_entry(cur,
- struct netxen_rx_buffer, list);
- netxen_alloc_rx_skb(adapter, rds_ring, rxbuf);
- }
- spin_lock(&rds_ring->lock);
- netxen_merge_rx_buffers(&sds_ring->free_list[ring],
- &rds_ring->free_list);
- spin_unlock(&rds_ring->lock);
- }
- netxen_post_rx_buffers_nodb(adapter, rds_ring);
- }
- if (count) {
- sds_ring->consumer = consumer;
- NXWRIO(adapter, sds_ring->crb_sts_consumer, consumer);
- }
- return count;
- }
- /* Process Command status ring */
- int netxen_process_cmd_ring(struct netxen_adapter *adapter)
- {
- u32 sw_consumer, hw_consumer;
- int count = 0, i;
- struct netxen_cmd_buffer *buffer;
- struct pci_dev *pdev = adapter->pdev;
- struct net_device *netdev = adapter->netdev;
- struct netxen_skb_frag *frag;
- int done = 0;
- struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
- if (!spin_trylock_bh(&adapter->tx_clean_lock))
- return 1;
- sw_consumer = tx_ring->sw_consumer;
- hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
- while (sw_consumer != hw_consumer) {
- buffer = &tx_ring->cmd_buf_arr[sw_consumer];
- if (buffer->skb) {
- frag = &buffer->frag_array[0];
- pci_unmap_single(pdev, frag->dma, frag->length,
- PCI_DMA_TODEVICE);
- frag->dma = 0ULL;
- for (i = 1; i < buffer->frag_count; i++) {
- frag++; /* Get the next frag */
- pci_unmap_page(pdev, frag->dma, frag->length,
- PCI_DMA_TODEVICE);
- frag->dma = 0ULL;
- }
- adapter->stats.xmitfinished++;
- dev_kfree_skb_any(buffer->skb);
- buffer->skb = NULL;
- }
- sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
- if (++count >= MAX_STATUS_HANDLE)
- break;
- }
- tx_ring->sw_consumer = sw_consumer;
- if (count && netif_running(netdev)) {
- smp_mb();
- if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev))
- if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
- netif_wake_queue(netdev);
- adapter->tx_timeo_cnt = 0;
- }
- /*
- * If everything is freed up to consumer then check if the ring is full
- * If the ring is full then check if more needs to be freed and
- * schedule the call back again.
- *
- * This happens when there are 2 CPUs. One could be freeing and the
- * other filling it. If the ring is full when we get out of here and
- * the card has already interrupted the host then the host can miss the
- * interrupt.
- *
- * There is still a possible race condition and the host could miss an
- * interrupt. The card has to take care of this.
- */
- hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
- done = (sw_consumer == hw_consumer);
- spin_unlock_bh(&adapter->tx_clean_lock);
- return done;
- }
- void
- netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
- struct nx_host_rds_ring *rds_ring)
- {
- struct rcv_desc *pdesc;
- struct netxen_rx_buffer *buffer;
- int producer, count = 0;
- netxen_ctx_msg msg = 0;
- struct list_head *head;
- producer = rds_ring->producer;
- head = &rds_ring->free_list;
- while (!list_empty(head)) {
- buffer = list_entry(head->next, struct netxen_rx_buffer, list);
- if (!buffer->skb) {
- if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
- break;
- }
- count++;
- list_del(&buffer->list);
- /* make a rcv descriptor */
- pdesc = &rds_ring->desc_head[producer];
- pdesc->addr_buffer = cpu_to_le64(buffer->dma);
- pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
- pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
- producer = get_next_index(producer, rds_ring->num_desc);
- }
- if (count) {
- rds_ring->producer = producer;
- NXWRIO(adapter, rds_ring->crb_rcv_producer,
- (producer-1) & (rds_ring->num_desc-1));
- if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
- /*
- * Write a doorbell msg to tell phanmon of change in
- * receive ring producer
- * Only for firmware version < 4.0.0
- */
- netxen_set_msg_peg_id(msg, NETXEN_RCV_PEG_DB_ID);
- netxen_set_msg_privid(msg);
- netxen_set_msg_count(msg,
- ((producer - 1) &
- (rds_ring->num_desc - 1)));
- netxen_set_msg_ctxid(msg, adapter->portnum);
- netxen_set_msg_opcode(msg, NETXEN_RCV_PRODUCER(ringid));
- NXWRIO(adapter, DB_NORMALIZE(adapter,
- NETXEN_RCV_PRODUCER_OFFSET), msg);
- }
- }
- }
- static void
- netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
- struct nx_host_rds_ring *rds_ring)
- {
- struct rcv_desc *pdesc;
- struct netxen_rx_buffer *buffer;
- int producer, count = 0;
- struct list_head *head;
- if (!spin_trylock(&rds_ring->lock))
- return;
- producer = rds_ring->producer;
- head = &rds_ring->free_list;
- while (!list_empty(head)) {
- buffer = list_entry(head->next, struct netxen_rx_buffer, list);
- if (!buffer->skb) {
- if (netxen_alloc_rx_skb(adapter, rds_ring, buffer))
- break;
- }
- count++;
- list_del(&buffer->list);
- /* make a rcv descriptor */
- pdesc = &rds_ring->desc_head[producer];
- pdesc->reference_handle = cpu_to_le16(buffer->ref_handle);
- pdesc->buffer_length = cpu_to_le32(rds_ring->dma_size);
- pdesc->addr_buffer = cpu_to_le64(buffer->dma);
- producer = get_next_index(producer, rds_ring->num_desc);
- }
- if (count) {
- rds_ring->producer = producer;
- NXWRIO(adapter, rds_ring->crb_rcv_producer,
- (producer - 1) & (rds_ring->num_desc - 1));
- }
- spin_unlock(&rds_ring->lock);
- }
- void netxen_nic_clear_stats(struct netxen_adapter *adapter)
- {
- memset(&adapter->stats, 0, sizeof(adapter->stats));
- }
|