drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c

   1 /*
   2  * QLogic qlcnic NIC Driver
   3  * Copyright (c) 2009-2013 QLogic Corporation
   4  *
   5  * See LICENSE.qlcnic for copyright and licensing details.
   6  */
   7
   8 #include "qlcnic.h"
   9 #include "qlcnic_hdr.h"
  10
  11 #include <linux/slab.h>
  12 #include <net/ip.h>
  13 #include <linux/bitops.h>
  14
  15 #define MASK(n) ((1ULL<<(n))-1)
  16 #define OCM_WIN_P3P(addr) (addr & 0xffc0000)
  17
  18 #define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  19
  20 #define CRB_BLK(off)    ((off >> 20) & 0x3f)
  21 #define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  22 #define CRB_WINDOW_2M   (0x130060)
  23 #define CRB_HI(off)     ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
  24 #define CRB_INDIRECT_2M (0x1e0000UL)
  25
  26 struct qlcnic_ms_reg_ctrl {
  27         u32 ocm_window;
  28         u32 control;
  29         u32 hi;
  30         u32 low;
  31         u32 rd[4];
  32         u32 wd[4];
  33         u64 off;
  34 };
  35
  36 #ifndef readq
  37 static inline u64 readq(void __iomem *addr)
  38 {
  39         return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
  40 }
  41 #endif
  42
  43 #ifndef writeq
  44 static inline void writeq(u64 val, void __iomem *addr)
  45 {
  46         writel(((u32) (val)), (addr));
  47         writel(((u32) (val >> 32)), (addr + 4));
  48 }
  49 #endif
  50
  51 static struct crb_128M_2M_block_map
  52 crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
  53     {{{0, 0,         0,         0} } },         /* 0: PCI */
  54     {{{1, 0x0100000, 0x0102000, 0x120000},      /* 1: PCIE */
  55           {1, 0x0110000, 0x0120000, 0x130000},
  56           {1, 0x0120000, 0x0122000, 0x124000},
  57           {1, 0x0130000, 0x0132000, 0x126000},
  58           {1, 0x0140000, 0x0142000, 0x128000},
  59           {1, 0x0150000, 0x0152000, 0x12a000},
  60           {1, 0x0160000, 0x0170000, 0x110000},
  61           {1, 0x0170000, 0x0172000, 0x12e000},
  62           {0, 0x0000000, 0x0000000, 0x000000},
  63           {0, 0x0000000, 0x0000000, 0x000000},
  64           {0, 0x0000000, 0x0000000, 0x000000},
  65           {0, 0x0000000, 0x0000000, 0x000000},
  66           {0, 0x0000000, 0x0000000, 0x000000},
  67           {0, 0x0000000, 0x0000000, 0x000000},
  68           {1, 0x01e0000, 0x01e0800, 0x122000},
  69           {0, 0x0000000, 0x0000000, 0x000000} } },
  70         {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
  71     {{{0, 0,         0,         0} } },     /* 3: */
  72     {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
  73     {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
  74     {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
  75     {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
  76     {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
  77       {0, 0x0000000, 0x0000000, 0x000000},
  78       {0, 0x0000000, 0x0000000, 0x000000},
  79       {0, 0x0000000, 0x0000000, 0x000000},
  80       {0, 0x0000000, 0x0000000, 0x000000},
  81       {0, 0x0000000, 0x0000000, 0x000000},
  82       {0, 0x0000000, 0x0000000, 0x000000},
  83       {0, 0x0000000, 0x0000000, 0x000000},
  84       {0, 0x0000000, 0x0000000, 0x000000},
  85       {0, 0x0000000, 0x0000000, 0x000000},
  86       {0, 0x0000000, 0x0000000, 0x000000},
  87       {0, 0x0000000, 0x0000000, 0x000000},
  88       {0, 0x0000000, 0x0000000, 0x000000},
  89       {0, 0x0000000, 0x0000000, 0x000000},
  90       {0, 0x0000000, 0x0000000, 0x000000},
  91       {1, 0x08f0000, 0x08f2000, 0x172000} } },
  92     {{{1, 0x0900000, 0x0902000, 0x174000},      /* 9: SQM1*/
  93       {0, 0x0000000, 0x0000000, 0x000000},
  94       {0, 0x0000000, 0x0000000, 0x000000},
  95       {0, 0x0000000, 0x0000000, 0x000000},
  96       {0, 0x0000000, 0x0000000, 0x000000},
  97       {0, 0x0000000, 0x0000000, 0x000000},
  98       {0, 0x0000000, 0x0000000, 0x000000},
  99       {0, 0x0000000, 0x0000000, 0x000000},
 100       {0, 0x0000000, 0x0000000, 0x000000},
 101       {0, 0x0000000, 0x0000000, 0x000000},
 102       {0, 0x0000000, 0x0000000, 0x000000},
 103       {0, 0x0000000, 0x0000000, 0x000000},
 104       {0, 0x0000000, 0x0000000, 0x000000},
 105       {0, 0x0000000, 0x0000000, 0x000000},
 106       {0, 0x0000000, 0x0000000, 0x000000},
 107       {1, 0x09f0000, 0x09f2000, 0x176000} } },
 108     {{{0, 0x0a00000, 0x0a02000, 0x178000},      /* 10: SQM2*/
 109       {0, 0x0000000, 0x0000000, 0x000000},
 110       {0, 0x0000000, 0x0000000, 0x000000},
 111       {0, 0x0000000, 0x0000000, 0x000000},
 112       {0, 0x0000000, 0x0000000, 0x000000},
 113       {0, 0x0000000, 0x0000000, 0x000000},
 114       {0, 0x0000000, 0x0000000, 0x000000},
 115       {0, 0x0000000, 0x0000000, 0x000000},
 116       {0, 0x0000000, 0x0000000, 0x000000},
 117       {0, 0x0000000, 0x0000000, 0x000000},
 118       {0, 0x0000000, 0x0000000, 0x000000},
 119       {0, 0x0000000, 0x0000000, 0x000000},
 120       {0, 0x0000000, 0x0000000, 0x000000},
 121       {0, 0x0000000, 0x0000000, 0x000000},
 122       {0, 0x0000000, 0x0000000, 0x000000},
 123       {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 124     {{{0, 0x0b00000, 0x0b02000, 0x17c000},      /* 11: SQM3*/
 125       {0, 0x0000000, 0x0000000, 0x000000},
 126       {0, 0x0000000, 0x0000000, 0x000000},
 127       {0, 0x0000000, 0x0000000, 0x000000},
 128       {0, 0x0000000, 0x0000000, 0x000000},
 129       {0, 0x0000000, 0x0000000, 0x000000},
 130       {0, 0x0000000, 0x0000000, 0x000000},
 131       {0, 0x0000000, 0x0000000, 0x000000},
 132       {0, 0x0000000, 0x0000000, 0x000000},
 133       {0, 0x0000000, 0x0000000, 0x000000},
 134       {0, 0x0000000, 0x0000000, 0x000000},
 135       {0, 0x0000000, 0x0000000, 0x000000},
 136       {0, 0x0000000, 0x0000000, 0x000000},
 137       {0, 0x0000000, 0x0000000, 0x000000},
 138       {0, 0x0000000, 0x0000000, 0x000000},
 139       {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 140         {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 141         {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 142         {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 143         {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 144         {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 145         {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 146         {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 147         {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 148         {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 149         {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 150         {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 151         {{{0, 0,         0,         0} } },     /* 23: */
 152         {{{0, 0,         0,         0} } },     /* 24: */
 153         {{{0, 0,         0,         0} } },     /* 25: */
 154         {{{0, 0,         0,         0} } },     /* 26: */
 155         {{{0, 0,         0,         0} } },     /* 27: */
 156         {{{0, 0,         0,         0} } },     /* 28: */
 157         {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 158     {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 159     {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 160         {{{0} } },                              /* 32: PCI */
 161         {{{1, 0x2100000, 0x2102000, 0x120000},  /* 33: PCIE */
 162           {1, 0x2110000, 0x2120000, 0x130000},
 163           {1, 0x2120000, 0x2122000, 0x124000},
 164           {1, 0x2130000, 0x2132000, 0x126000},
 165           {1, 0x2140000, 0x2142000, 0x128000},
 166           {1, 0x2150000, 0x2152000, 0x12a000},
 167           {1, 0x2160000, 0x2170000, 0x110000},
 168           {1, 0x2170000, 0x2172000, 0x12e000},
 169           {0, 0x0000000, 0x0000000, 0x000000},
 170           {0, 0x0000000, 0x0000000, 0x000000},
 171           {0, 0x0000000, 0x0000000, 0x000000},
 172           {0, 0x0000000, 0x0000000, 0x000000},
 173           {0, 0x0000000, 0x0000000, 0x000000},
 174           {0, 0x0000000, 0x0000000, 0x000000},
 175           {0, 0x0000000, 0x0000000, 0x000000},
 176           {0, 0x0000000, 0x0000000, 0x000000} } },
 177         {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 178         {{{0} } },                              /* 35: */
 179         {{{0} } },                              /* 36: */
 180         {{{0} } },                              /* 37: */
 181         {{{0} } },                              /* 38: */
 182         {{{0} } },                              /* 39: */
 183         {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 184         {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 185         {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 186         {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 187         {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 188         {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 189         {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 190         {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 191         {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 192         {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 193         {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 194         {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 195         {{{0} } },                              /* 52: */
 196         {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 197         {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 198         {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 199         {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 200         {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 201         {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 202         {{{0} } },                              /* 59: I2C0 */
 203         {{{0} } },                              /* 60: I2C1 */
 204         {{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
 205         {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 206         {{{1, 0x3f00000, 0x3f01000, 0x168000} } }       /* 63: P2NR0 */
 207 };
 208
 209 /*
 210  * top 12 bits of crb internal address (hub, agent)
 211  */
 212 static const unsigned crb_hub_agt[64] = {
 213         0,
 214         QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
 215         QLCNIC_HW_CRB_HUB_AGT_ADR_MN,
 216         QLCNIC_HW_CRB_HUB_AGT_ADR_MS,
 217         0,
 218         QLCNIC_HW_CRB_HUB_AGT_ADR_SRE,
 219         QLCNIC_HW_CRB_HUB_AGT_ADR_NIU,
 220         QLCNIC_HW_CRB_HUB_AGT_ADR_QMN,
 221         QLCNIC_HW_CRB_HUB_AGT_ADR_SQN0,
 222         QLCNIC_HW_CRB_HUB_AGT_ADR_SQN1,
 223         QLCNIC_HW_CRB_HUB_AGT_ADR_SQN2,
 224         QLCNIC_HW_CRB_HUB_AGT_ADR_SQN3,
 225         QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
 226         QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
 227         QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
 228         QLCNIC_HW_CRB_HUB_AGT_ADR_PGN4,
 229         QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
 230         QLCNIC_HW_CRB_HUB_AGT_ADR_PGN0,
 231         QLCNIC_HW_CRB_HUB_AGT_ADR_PGN1,
 232         QLCNIC_HW_CRB_HUB_AGT_ADR_PGN2,
 233         QLCNIC_HW_CRB_HUB_AGT_ADR_PGN3,
 234         QLCNIC_HW_CRB_HUB_AGT_ADR_PGND,
 235         QLCNIC_HW_CRB_HUB_AGT_ADR_PGNI,
 236         QLCNIC_HW_CRB_HUB_AGT_ADR_PGS0,
 237         QLCNIC_HW_CRB_HUB_AGT_ADR_PGS1,
 238         QLCNIC_HW_CRB_HUB_AGT_ADR_PGS2,
 239         QLCNIC_HW_CRB_HUB_AGT_ADR_PGS3,
 240         0,
 241         QLCNIC_HW_CRB_HUB_AGT_ADR_PGSI,
 242         QLCNIC_HW_CRB_HUB_AGT_ADR_SN,
 243         0,
 244         QLCNIC_HW_CRB_HUB_AGT_ADR_EG,
 245         0,
 246         QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
 247         QLCNIC_HW_CRB_HUB_AGT_ADR_CAM,
 248         0,
 249         0,
 250         0,
 251         0,
 252         0,
 253         QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
 254         0,
 255         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX1,
 256         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX2,
 257         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX3,
 258         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX4,
 259         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX5,
 260         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX6,
 261         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX7,
 262         QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
 263         QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
 264         QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
 265         0,
 266         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX0,
 267         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX8,
 268         QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX9,
 269         QLCNIC_HW_CRB_HUB_AGT_ADR_OCM0,
 270         0,
 271         QLCNIC_HW_CRB_HUB_AGT_ADR_SMB,
 272         QLCNIC_HW_CRB_HUB_AGT_ADR_I2C0,
 273         QLCNIC_HW_CRB_HUB_AGT_ADR_I2C1,
 274         0,
 275         QLCNIC_HW_CRB_HUB_AGT_ADR_PGNC,
 276         0,
 277 };
 278
 279 static const u32 msi_tgt_status[8] = {
 280         ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
 281         ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
 282         ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
 283         ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
 284 };
 285
 286 /*  PCI Windowing for DDR regions.  */
 287
 288 #define QLCNIC_PCIE_SEM_TIMEOUT 10000
 289
 290 static void qlcnic_read_window_reg(u32 addr, void __iomem *bar0, u32 *data)
 291 {
 292         u32 dest;
 293         void __iomem *val;
 294
 295         dest = addr & 0xFFFF0000;
 296         val = bar0 + QLCNIC_FW_DUMP_REG1;
 297         writel(dest, val);
 298         readl(val);
 299         val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
 300         *data = readl(val);
 301 }
 302
 303 static void qlcnic_write_window_reg(u32 addr, void __iomem *bar0, u32 data)
 304 {
 305         u32 dest;
 306         void __iomem *val;
 307
 308         dest = addr & 0xFFFF0000;
 309         val = bar0 + QLCNIC_FW_DUMP_REG1;
 310         writel(dest, val);
 311         readl(val);
 312         val = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
 313         writel(data, val);
 314         readl(val);
 315 }
 316
 317 int
 318 qlcnic_pcie_sem_lock(struct qlcnic_adapter *adapter, int sem, u32 id_reg)
 319 {
 320         int done = 0, timeout = 0;
 321
 322         while (!done) {
 323                 done = QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_LOCK(sem)));
 324                 if (done == 1)
 325                         break;
 326                 if (++timeout >= QLCNIC_PCIE_SEM_TIMEOUT) {
 327                         dev_err(&adapter->pdev->dev,
 328                                 "Failed to acquire sem=%d lock; holdby=%d\n",
 329                                 sem, id_reg ? QLCRD32(adapter, id_reg) : -1);
 330                         return -EIO;
 331                 }
 332                 msleep(1);
 333         }
 334
 335         if (id_reg)
 336                 QLCWR32(adapter, id_reg, adapter->portnum);
 337
 338         return 0;
 339 }
 340
 341 void
 342 qlcnic_pcie_sem_unlock(struct qlcnic_adapter *adapter, int sem)
 343 {
 344         QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 345 }
 346
 347 int qlcnic_ind_rd(struct qlcnic_adapter *adapter, u32 addr)
 348 {
 349         u32 data;
 350
 351         if (qlcnic_82xx_check(adapter))
 352                 qlcnic_read_window_reg(addr, adapter->ahw->pci_base0, &data);
 353         else {
 354                 data = qlcnic_83xx_rd_reg_indirect(adapter, addr);
 355                 if (data == -EIO)
 356                         return -EIO;
 357         }
 358         return data;
 359 }
 360
 361 void qlcnic_ind_wr(struct qlcnic_adapter *adapter, u32 addr, u32 data)
 362 {
 363         if (qlcnic_82xx_check(adapter))
 364                 qlcnic_write_window_reg(addr, adapter->ahw->pci_base0, data);
 365         else
 366                 qlcnic_83xx_wrt_reg_indirect(adapter, addr, data);
 367 }
 368
 369 static int
 370 qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
 371                 struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
 372 {
 373         u32 i, producer;
 374         struct qlcnic_cmd_buffer *pbuf;
 375         struct cmd_desc_type0 *cmd_desc;
 376         struct qlcnic_host_tx_ring *tx_ring;
 377
 378         i = 0;
 379
 380         if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 381                 return -EIO;
 382
 383         tx_ring = adapter->tx_ring;
 384         __netif_tx_lock_bh(tx_ring->txq);
 385
 386         producer = tx_ring->producer;
 387
 388         if (nr_desc >= qlcnic_tx_avail(tx_ring)) {
 389                 netif_tx_stop_queue(tx_ring->txq);
 390                 smp_mb();
 391                 if (qlcnic_tx_avail(tx_ring) > nr_desc) {
 392                         if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
 393                                 netif_tx_wake_queue(tx_ring->txq);
 394                 } else {
 395                         adapter->stats.xmit_off++;
 396                         __netif_tx_unlock_bh(tx_ring->txq);
 397                         return -EBUSY;
 398                 }
 399         }
 400
 401         do {
 402                 cmd_desc = &cmd_desc_arr[i];
 403
 404                 pbuf = &tx_ring->cmd_buf_arr[producer];
 405                 pbuf->skb = NULL;
 406                 pbuf->frag_count = 0;
 407
 408                 memcpy(&tx_ring->desc_head[producer],
 409                        cmd_desc, sizeof(struct cmd_desc_type0));
 410
 411                 producer = get_next_index(producer, tx_ring->num_desc);
 412                 i++;
 413
 414         } while (i != nr_desc);
 415
 416         tx_ring->producer = producer;
 417
 418         qlcnic_update_cmd_producer(tx_ring);
 419
 420         __netif_tx_unlock_bh(tx_ring->txq);
 421
 422         return 0;
 423 }
 424
 425 int qlcnic_82xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
 426                                    __le16 vlan_id, u8 op)
 427 {
 428         struct qlcnic_nic_req req;
 429         struct qlcnic_mac_req *mac_req;
 430         struct qlcnic_vlan_req *vlan_req;
 431         u64 word;
 432
 433         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 434         req.qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
 435
 436         word = QLCNIC_MAC_EVENT | ((u64)adapter->portnum << 16);
 437         req.req_hdr = cpu_to_le64(word);
 438
 439         mac_req = (struct qlcnic_mac_req *)&req.words[0];
 440         mac_req->op = op;
 441         memcpy(mac_req->mac_addr, addr, 6);
 442
 443         vlan_req = (struct qlcnic_vlan_req *)&req.words[1];
 444         vlan_req->vlan_id = vlan_id;
 445
 446         return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 447 }
 448
 449 int qlcnic_nic_del_mac(struct qlcnic_adapter *adapter, const u8 *addr)
 450 {
 451         struct list_head *head;
 452         struct qlcnic_mac_list_s *cur;
 453         int err = -EINVAL;
 454
 455         /* Delete MAC from the existing list */
 456         list_for_each(head, &adapter->mac_list) {
 457                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 458                 if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) {
 459                         err = qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
 460                                                         0, QLCNIC_MAC_DEL);
 461                         if (err)
 462                                 return err;
 463                         list_del(&cur->list);
 464                         kfree(cur);
 465                         return err;
 466                 }
 467         }
 468         return err;
 469 }
 470
 471 int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr)
 472 {
 473         struct list_head *head;
 474         struct qlcnic_mac_list_s *cur;
 475
 476         /* look up if already exists */
 477         list_for_each(head, &adapter->mac_list) {
 478                 cur = list_entry(head, struct qlcnic_mac_list_s, list);
 479                 if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0)
 480                         return 0;
 481         }
 482
 483         cur = kzalloc(sizeof(struct qlcnic_mac_list_s), GFP_ATOMIC);
 484         if (cur == NULL)
 485                 return -ENOMEM;
 486
 487         memcpy(cur->mac_addr, addr, ETH_ALEN);
 488
 489         if (qlcnic_sre_macaddr_change(adapter,
 490                                 cur->mac_addr, 0, QLCNIC_MAC_ADD)) {
 491                 kfree(cur);
 492                 return -EIO;
 493         }
 494
 495         list_add_tail(&cur->list, &adapter->mac_list);
 496         return 0;
 497 }
 498
 499 void __qlcnic_set_multi(struct net_device *netdev)
 500 {
 501         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 502         struct netdev_hw_addr *ha;
 503         static const u8 bcast_addr[ETH_ALEN] = {
 504                 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 505         };
 506         u32 mode = VPORT_MISS_MODE_DROP;
 507
 508         if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 509                 return;
 510
 511         if (!qlcnic_sriov_vf_check(adapter))
 512                 qlcnic_nic_add_mac(adapter, adapter->mac_addr);
 513         qlcnic_nic_add_mac(adapter, bcast_addr);
 514
 515         if (netdev->flags & IFF_PROMISC) {
 516                 if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
 517                         mode = VPORT_MISS_MODE_ACCEPT_ALL;
 518                 goto send_fw_cmd;
 519         }
 520
 521         if ((netdev->flags & IFF_ALLMULTI) ||
 522             (netdev_mc_count(netdev) > adapter->ahw->max_mc_count)) {
 523                 mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 524                 goto send_fw_cmd;
 525         }
 526
 527         if (!netdev_mc_empty(netdev) && !qlcnic_sriov_vf_check(adapter)) {
 528                 netdev_for_each_mc_addr(ha, netdev) {
 529                         qlcnic_nic_add_mac(adapter, ha->addr);
 530                 }
 531         }
 532
 533         if (qlcnic_sriov_vf_check(adapter))
 534                 qlcnic_vf_add_mc_list(netdev);
 535
 536 send_fw_cmd:
 537         if (!qlcnic_sriov_vf_check(adapter)) {
 538                 if (mode == VPORT_MISS_MODE_ACCEPT_ALL &&
 539                     !adapter->fdb_mac_learn) {
 540                         qlcnic_alloc_lb_filters_mem(adapter);
 541                         adapter->drv_mac_learn = true;
 542                 } else {
 543                         adapter->drv_mac_learn = false;
 544                 }
 545         }
 546
 547         qlcnic_nic_set_promisc(adapter, mode);
 548 }
 549
 550 void qlcnic_set_multi(struct net_device *netdev)
 551 {
 552         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 553         struct netdev_hw_addr *ha;
 554         struct qlcnic_mac_list_s *cur;
 555
 556         if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 557                 return;
 558         if (qlcnic_sriov_vf_check(adapter)) {
 559                 if (!netdev_mc_empty(netdev)) {
 560                         netdev_for_each_mc_addr(ha, netdev) {
 561                                 cur = kzalloc(sizeof(struct qlcnic_mac_list_s),
 562                                               GFP_ATOMIC);
 563                                 memcpy(cur->mac_addr,
 564                                        ha->addr, ETH_ALEN);
 565                                 list_add_tail(&cur->list, &adapter->vf_mc_list);
 566                         }
 567                 }
 568                 qlcnic_sriov_vf_schedule_multi(adapter->netdev);
 569                 return;
 570         }
 571         __qlcnic_set_multi(netdev);
 572 }
 573
 574 int qlcnic_82xx_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
 575 {
 576         struct qlcnic_nic_req req;
 577         u64 word;
 578
 579         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 580
 581         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 582
 583         word = QLCNIC_H2C_OPCODE_SET_MAC_RECEIVE_MODE |
 584                         ((u64)adapter->portnum << 16);
 585         req.req_hdr = cpu_to_le64(word);
 586
 587         req.words[0] = cpu_to_le64(mode);
 588
 589         return qlcnic_send_cmd_descs(adapter,
 590                                 (struct cmd_desc_type0 *)&req, 1);
 591 }
 592
 593 void qlcnic_free_mac_list(struct qlcnic_adapter *adapter)
 594 {
 595         struct qlcnic_mac_list_s *cur;
 596         struct list_head *head = &adapter->mac_list;
 597
 598         while (!list_empty(head)) {
 599                 cur = list_entry(head->next, struct qlcnic_mac_list_s, list);
 600                 qlcnic_sre_macaddr_change(adapter,
 601                                 cur->mac_addr, 0, QLCNIC_MAC_DEL);
 602                 list_del(&cur->list);
 603                 kfree(cur);
 604         }
 605 }
 606
 607 void qlcnic_prune_lb_filters(struct qlcnic_adapter *adapter)
 608 {
 609         struct qlcnic_filter *tmp_fil;
 610         struct hlist_node *n;
 611         struct hlist_head *head;
 612         int i;
 613         unsigned long time;
 614         u8 cmd;
 615
 616         for (i = 0; i < adapter->fhash.fbucket_size; i++) {
 617                 head = &(adapter->fhash.fhead[i]);
 618                 hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
 619                         cmd =  tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
 620                                                   QLCNIC_MAC_DEL;
 621                         time = tmp_fil->ftime;
 622                         if (jiffies > (QLCNIC_FILTER_AGE * HZ + time)) {
 623                                 qlcnic_sre_macaddr_change(adapter,
 624                                                           tmp_fil->faddr,
 625                                                           tmp_fil->vlan_id,
 626                                                           cmd);
 627                                 spin_lock_bh(&adapter->mac_learn_lock);
 628                                 adapter->fhash.fnum--;
 629                                 hlist_del(&tmp_fil->fnode);
 630                                 spin_unlock_bh(&adapter->mac_learn_lock);
 631                                 kfree(tmp_fil);
 632                         }
 633                 }
 634         }
 635         for (i = 0; i < adapter->rx_fhash.fbucket_size; i++) {
 636                 head = &(adapter->rx_fhash.fhead[i]);
 637
 638                 hlist_for_each_entry_safe(tmp_fil, n, head, fnode)
 639                 {
 640                         time = tmp_fil->ftime;
 641                         if (jiffies > (QLCNIC_FILTER_AGE * HZ + time)) {
 642                                 spin_lock_bh(&adapter->rx_mac_learn_lock);
 643                                 adapter->rx_fhash.fnum--;
 644                                 hlist_del(&tmp_fil->fnode);
 645                                 spin_unlock_bh(&adapter->rx_mac_learn_lock);
 646                                 kfree(tmp_fil);
 647                         }
 648                 }
 649         }
 650 }
 651
 652 void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter)
 653 {
 654         struct qlcnic_filter *tmp_fil;
 655         struct hlist_node *n;
 656         struct hlist_head *head;
 657         int i;
 658         u8 cmd;
 659
 660         for (i = 0; i < adapter->fhash.fbucket_size; i++) {
 661                 head = &(adapter->fhash.fhead[i]);
 662                 hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
 663                         cmd =  tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
 664                                                   QLCNIC_MAC_DEL;
 665                         qlcnic_sre_macaddr_change(adapter,
 666                                                   tmp_fil->faddr,
 667                                                   tmp_fil->vlan_id,
 668                                                   cmd);
 669                         spin_lock_bh(&adapter->mac_learn_lock);
 670                         adapter->fhash.fnum--;
 671                         hlist_del(&tmp_fil->fnode);
 672                         spin_unlock_bh(&adapter->mac_learn_lock);
 673                         kfree(tmp_fil);
 674                 }
 675         }
 676 }
 677
 678 static int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u8 flag)
 679 {
 680         struct qlcnic_nic_req req;
 681         int rv;
 682
 683         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 684
 685         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 686         req.req_hdr = cpu_to_le64(QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
 687                 ((u64) adapter->portnum << 16) | ((u64) 0x1 << 32));
 688
 689         req.words[0] = cpu_to_le64(flag);
 690
 691         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 692         if (rv != 0)
 693                 dev_err(&adapter->pdev->dev, "%sting loopback mode failed\n",
 694                                 flag ? "Set" : "Reset");
 695         return rv;
 696 }
 697
 698 int qlcnic_82xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 699 {
 700         if (qlcnic_set_fw_loopback(adapter, mode))
 701                 return -EIO;
 702
 703         if (qlcnic_nic_set_promisc(adapter,
 704                                    VPORT_MISS_MODE_ACCEPT_ALL)) {
 705                 qlcnic_set_fw_loopback(adapter, 0);
 706                 return -EIO;
 707         }
 708
 709         msleep(1000);
 710         return 0;
 711 }
 712
 713 int qlcnic_82xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 714 {
 715         struct net_device *netdev = adapter->netdev;
 716
 717         mode = VPORT_MISS_MODE_DROP;
 718         qlcnic_set_fw_loopback(adapter, 0);
 719
 720         if (netdev->flags & IFF_PROMISC)
 721                 mode = VPORT_MISS_MODE_ACCEPT_ALL;
 722         else if (netdev->flags & IFF_ALLMULTI)
 723                 mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 724
 725         qlcnic_nic_set_promisc(adapter, mode);
 726         msleep(1000);
 727         return 0;
 728 }
 729
 730 /*
 731  * Send the interrupt coalescing parameter set by ethtool to the card.
 732  */
 733 void qlcnic_82xx_config_intr_coalesce(struct qlcnic_adapter *adapter)
 734 {
 735         struct qlcnic_nic_req req;
 736         int rv;
 737
 738         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 739
 740         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 741
 742         req.req_hdr = cpu_to_le64(QLCNIC_CONFIG_INTR_COALESCE |
 743                 ((u64) adapter->portnum << 16));
 744
 745         req.words[0] = cpu_to_le64(((u64) adapter->ahw->coal.flag) << 32);
 746         req.words[2] = cpu_to_le64(adapter->ahw->coal.rx_packets |
 747                         ((u64) adapter->ahw->coal.rx_time_us) << 16);
 748         req.words[5] = cpu_to_le64(adapter->ahw->coal.timer_out |
 749                         ((u64) adapter->ahw->coal.type) << 32 |
 750                         ((u64) adapter->ahw->coal.sts_ring_mask) << 40);
 751         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 752         if (rv != 0)
 753                 dev_err(&adapter->netdev->dev,
 754                         "Could not send interrupt coalescing parameters\n");
 755 }
 756
 757 #define QLCNIC_ENABLE_IPV4_LRO          1
 758 #define QLCNIC_ENABLE_IPV6_LRO          2
 759 #define QLCNIC_NO_DEST_IPV4_CHECK       (1 << 8)
 760 #define QLCNIC_NO_DEST_IPV6_CHECK       (2 << 8)
 761
 762 int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
 763 {
 764         struct qlcnic_nic_req req;
 765         u64 word;
 766         int rv;
 767
 768         if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 769                 return 0;
 770
 771         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 772
 773         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 774
 775         word = QLCNIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
 776         req.req_hdr = cpu_to_le64(word);
 777
 778         word = 0;
 779         if (enable) {
 780                 word = QLCNIC_ENABLE_IPV4_LRO | QLCNIC_NO_DEST_IPV4_CHECK;
 781                 if (adapter->ahw->capabilities2 & QLCNIC_FW_CAP2_HW_LRO_IPV6)
 782                         word |= QLCNIC_ENABLE_IPV6_LRO |
 783                                 QLCNIC_NO_DEST_IPV6_CHECK;
 784         }
 785
 786         req.words[0] = cpu_to_le64(word);
 787
 788         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 789         if (rv != 0)
 790                 dev_err(&adapter->netdev->dev,
 791                         "Could not send configure hw lro request\n");
 792
 793         return rv;
 794 }
 795
 796 int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
 797 {
 798         struct qlcnic_nic_req req;
 799         u64 word;
 800         int rv;
 801
 802         if (!!(adapter->flags & QLCNIC_BRIDGE_ENABLED) == enable)
 803                 return 0;
 804
 805         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 806
 807         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 808
 809         word = QLCNIC_H2C_OPCODE_CONFIG_BRIDGING |
 810                 ((u64)adapter->portnum << 16);
 811         req.req_hdr = cpu_to_le64(word);
 812
 813         req.words[0] = cpu_to_le64(enable);
 814
 815         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 816         if (rv != 0)
 817                 dev_err(&adapter->netdev->dev,
 818                         "Could not send configure bridge mode request\n");
 819
 820         adapter->flags ^= QLCNIC_BRIDGE_ENABLED;
 821
 822         return rv;
 823 }
 824
 825
 826 #define QLCNIC_RSS_HASHTYPE_IP_TCP      0x3
 827 #define QLCNIC_ENABLE_TYPE_C_RSS        BIT_10
 828 #define QLCNIC_RSS_FEATURE_FLAG (1ULL << 63)
 829 #define QLCNIC_RSS_IND_TABLE_MASK       0x7ULL
 830
 831 int qlcnic_82xx_config_rss(struct qlcnic_adapter *adapter, int enable)
 832 {
 833         struct qlcnic_nic_req req;
 834         u64 word;
 835         int i, rv;
 836
 837         static const u64 key[] = {
 838                 0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
 839                 0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
 840                 0x255b0ec26d5a56daULL
 841         };
 842
 843         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 844         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 845
 846         word = QLCNIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
 847         req.req_hdr = cpu_to_le64(word);
 848
 849         /*
 850          * RSS request:
 851          * bits 3-0: hash_method
 852          *      5-4: hash_type_ipv4
 853          *      7-6: hash_type_ipv6
 854          *        8: enable
 855          *        9: use indirection table
 856          *       10: type-c rss
 857          *       11: udp rss
 858          *    47-12: reserved
 859          *    62-48: indirection table mask
 860          *       63: feature flag
 861          */
 862         word =  ((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
 863                 ((u64)(QLCNIC_RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
 864                 ((u64)(enable & 0x1) << 8) |
 865                 ((u64)QLCNIC_RSS_IND_TABLE_MASK << 48) |
 866                 (u64)QLCNIC_ENABLE_TYPE_C_RSS |
 867                 (u64)QLCNIC_RSS_FEATURE_FLAG;
 868
 869         req.words[0] = cpu_to_le64(word);
 870         for (i = 0; i < 5; i++)
 871                 req.words[i+1] = cpu_to_le64(key[i]);
 872
 873         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 874         if (rv != 0)
 875                 dev_err(&adapter->netdev->dev, "could not configure RSS\n");
 876
 877         return rv;
 878 }
 879
 880 void qlcnic_82xx_config_ipaddr(struct qlcnic_adapter *adapter,
 881                                __be32 ip, int cmd)
 882 {
 883         struct qlcnic_nic_req req;
 884         struct qlcnic_ipaddr *ipa;
 885         u64 word;
 886         int rv;
 887
 888         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 889         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 890
 891         word = QLCNIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
 892         req.req_hdr = cpu_to_le64(word);
 893
 894         req.words[0] = cpu_to_le64(cmd);
 895         ipa = (struct qlcnic_ipaddr *)&req.words[1];
 896         ipa->ipv4 = ip;
 897
 898         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 899         if (rv != 0)
 900                 dev_err(&adapter->netdev->dev,
 901                                 "could not notify %s IP 0x%x reuqest\n",
 902                                 (cmd == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
 903 }
 904
 905 int qlcnic_82xx_linkevent_request(struct qlcnic_adapter *adapter, int enable)
 906 {
 907         struct qlcnic_nic_req req;
 908         u64 word;
 909         int rv;
 910         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 911         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 912
 913         word = QLCNIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
 914         req.req_hdr = cpu_to_le64(word);
 915         req.words[0] = cpu_to_le64(enable | (enable << 8));
 916         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 917         if (rv != 0)
 918                 dev_err(&adapter->netdev->dev,
 919                                 "could not configure link notification\n");
 920
 921         return rv;
 922 }
 923
 924 int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter)
 925 {
 926         struct qlcnic_nic_req req;
 927         u64 word;
 928         int rv;
 929
 930         if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 931                 return 0;
 932
 933         memset(&req, 0, sizeof(struct qlcnic_nic_req));
 934         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 935
 936         word = QLCNIC_H2C_OPCODE_LRO_REQUEST |
 937                 ((u64)adapter->portnum << 16) |
 938                 ((u64)QLCNIC_LRO_REQUEST_CLEANUP << 56) ;
 939
 940         req.req_hdr = cpu_to_le64(word);
 941
 942         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 943         if (rv != 0)
 944                 dev_err(&adapter->netdev->dev,
 945                                  "could not cleanup lro flows\n");
 946
 947         return rv;
 948 }
 949
 950 /*
 951  * qlcnic_change_mtu - Change the Maximum Transfer Unit
 952  * @returns 0 on success, negative on failure
 953  */
 954
 955 int qlcnic_change_mtu(struct net_device *netdev, int mtu)
 956 {
 957         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 958         int rc = 0;
 959
 960         if (mtu < P3P_MIN_MTU || mtu > P3P_MAX_MTU) {
 961                 dev_err(&adapter->netdev->dev, "%d bytes < mtu < %d bytes"
 962                         " not supported\n", P3P_MAX_MTU, P3P_MIN_MTU);
 963                 return -EINVAL;
 964         }
 965
 966         rc = qlcnic_fw_cmd_set_mtu(adapter, mtu);
 967
 968         if (!rc)
 969                 netdev->mtu = mtu;
 970
 971         return rc;
 972 }
 973
 974
 975 netdev_features_t qlcnic_fix_features(struct net_device *netdev,
 976         netdev_features_t features)
 977 {
 978         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 979
 980         if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
 981             qlcnic_82xx_check(adapter)) {
 982                 netdev_features_t changed = features ^ netdev->features;
 983                 features ^= changed & (NETIF_F_ALL_CSUM | NETIF_F_RXCSUM);
 984         }
 985
 986         if (!(features & NETIF_F_RXCSUM))
 987                 features &= ~NETIF_F_LRO;
 988
 989         return features;
 990 }
 991
 992
 993 int qlcnic_set_features(struct net_device *netdev, netdev_features_t features)
 994 {
 995         struct qlcnic_adapter *adapter = netdev_priv(netdev);
 996         netdev_features_t changed = netdev->features ^ features;
 997         int hw_lro = (features & NETIF_F_LRO) ? QLCNIC_LRO_ENABLED : 0;
 998
 999         if (!(changed & NETIF_F_LRO))
1000                 return 0;
1001
1002         netdev->features ^= NETIF_F_LRO;
1003
1004         if (qlcnic_config_hw_lro(adapter, hw_lro))
1005                 return -EIO;
1006
1007         if (!hw_lro && qlcnic_82xx_check(adapter)) {
1008                 if (qlcnic_send_lro_cleanup(adapter))
1009                         return -EIO;
1010         }
1011
1012         return 0;
1013 }
1014
1015 /*
1016  * Changes the CRB window to the specified window.
1017  */
1018  /* Returns < 0 if off is not valid,
1019  *       1 if window access is needed. 'off' is set to offset from
1020  *         CRB space in 128M pci map
1021  *       0 if no window access is needed. 'off' is set to 2M addr
1022  * In: 'off' is offset from base in 128M pci map
1023  */
1024 static int qlcnic_pci_get_crb_addr_2M(struct qlcnic_hardware_context *ahw,
1025                                       ulong off, void __iomem **addr)
1026 {
1027         const struct crb_128M_2M_sub_block_map *m;
1028
1029         if ((off >= QLCNIC_CRB_MAX) || (off < QLCNIC_PCI_CRBSPACE))
1030                 return -EINVAL;
1031
1032         off -= QLCNIC_PCI_CRBSPACE;
1033
1034         /*
1035          * Try direct map
1036          */
1037         m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
1038
1039         if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
1040                 *addr = ahw->pci_base0 + m->start_2M +
1041                         (off - m->start_128M);
1042                 return 0;
1043         }
1044
1045         /*
1046          * Not in direct map, use crb window
1047          */
1048         *addr = ahw->pci_base0 + CRB_INDIRECT_2M + (off & MASK(16));
1049         return 1;
1050 }
1051
1052 /*
1053  * In: 'off' is offset from CRB space in 128M pci map
1054  * Out: 'off' is 2M pci map addr
1055  * side effect: lock crb window
1056  */
1057 static int
1058 qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
1059 {
1060         u32 window;
1061         void __iomem *addr = adapter->ahw->pci_base0 + CRB_WINDOW_2M;
1062
1063         off -= QLCNIC_PCI_CRBSPACE;
1064
1065         window = CRB_HI(off);
1066         if (window == 0) {
1067                 dev_err(&adapter->pdev->dev, "Invalid offset 0x%lx\n", off);
1068                 return -EIO;
1069         }
1070
1071         writel(window, addr);
1072         if (readl(addr) != window) {
1073                 if (printk_ratelimit())
1074                         dev_warn(&adapter->pdev->dev,
1075                                 "failed to set CRB window to %d off 0x%lx\n",
1076                                 window, off);
1077                 return -EIO;
1078         }
1079         return 0;
1080 }
1081
1082 int qlcnic_82xx_hw_write_wx_2M(struct qlcnic_adapter *adapter, ulong off,
1083                                u32 data)
1084 {
1085         unsigned long flags;
1086         int rv;
1087         void __iomem *addr = NULL;
1088
1089         rv = qlcnic_pci_get_crb_addr_2M(adapter->ahw, off, &addr);
1090
1091         if (rv == 0) {
1092                 writel(data, addr);
1093                 return 0;
1094         }
1095
1096         if (rv > 0) {
1097                 /* indirect access */
1098                 write_lock_irqsave(&adapter->ahw->crb_lock, flags);
1099                 crb_win_lock(adapter);
1100                 rv = qlcnic_pci_set_crbwindow_2M(adapter, off);
1101                 if (!rv)
1102                         writel(data, addr);
1103                 crb_win_unlock(adapter);
1104                 write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
1105                 return rv;
1106         }
1107
1108         dev_err(&adapter->pdev->dev,
1109                         "%s: invalid offset: 0x%016lx\n", __func__, off);
1110         dump_stack();
1111         return -EIO;
1112 }
1113
1114 int qlcnic_82xx_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off)
1115 {
1116         unsigned long flags;
1117         int rv;
1118         u32 data = -1;
1119         void __iomem *addr = NULL;
1120
1121         rv = qlcnic_pci_get_crb_addr_2M(adapter->ahw, off, &addr);
1122
1123         if (rv == 0)
1124                 return readl(addr);
1125
1126         if (rv > 0) {
1127                 /* indirect access */
1128                 write_lock_irqsave(&adapter->ahw->crb_lock, flags);
1129                 crb_win_lock(adapter);
1130                 if (!qlcnic_pci_set_crbwindow_2M(adapter, off))
1131                         data = readl(addr);
1132                 crb_win_unlock(adapter);
1133                 write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
1134                 return data;
1135         }
1136
1137         dev_err(&adapter->pdev->dev,
1138                         "%s: invalid offset: 0x%016lx\n", __func__, off);
1139         dump_stack();
1140         return -1;
1141 }
1142
1143 void __iomem *qlcnic_get_ioaddr(struct qlcnic_hardware_context *ahw,
1144                                 u32 offset)
1145 {
1146         void __iomem *addr = NULL;
1147
1148         WARN_ON(qlcnic_pci_get_crb_addr_2M(ahw, offset, &addr));
1149
1150         return addr;
1151 }
1152
1153 static int qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter,
1154                                         u32 window, u64 off, u64 *data, int op)
1155 {
1156         void __iomem *addr;
1157         u32 start;
1158
1159         mutex_lock(&adapter->ahw->mem_lock);
1160
1161         writel(window, adapter->ahw->ocm_win_crb);
1162         /* read back to flush */
1163         readl(adapter->ahw->ocm_win_crb);
1164         start = QLCNIC_PCI_OCM0_2M + off;
1165
1166         addr = adapter->ahw->pci_base0 + start;
1167
1168         if (op == 0)    /* read */
1169                 *data = readq(addr);
1170         else            /* write */
1171                 writeq(*data, addr);
1172
1173         /* Set window to 0 */
1174         writel(0, adapter->ahw->ocm_win_crb);
1175         readl(adapter->ahw->ocm_win_crb);
1176
1177         mutex_unlock(&adapter->ahw->mem_lock);
1178         return 0;
1179 }
1180
1181 void
1182 qlcnic_pci_camqm_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
1183 {
1184         void __iomem *addr = adapter->ahw->pci_base0 +
1185                 QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1186
1187         mutex_lock(&adapter->ahw->mem_lock);
1188         *data = readq(addr);
1189         mutex_unlock(&adapter->ahw->mem_lock);
1190 }
1191
1192 void
1193 qlcnic_pci_camqm_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
1194 {
1195         void __iomem *addr = adapter->ahw->pci_base0 +
1196                 QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1197
1198         mutex_lock(&adapter->ahw->mem_lock);
1199         writeq(data, addr);
1200         mutex_unlock(&adapter->ahw->mem_lock);
1201 }
1202
1203
1204
1205 /* Set MS memory control data for different adapters */
1206 static void qlcnic_set_ms_controls(struct qlcnic_adapter *adapter, u64 off,
1207                                    struct qlcnic_ms_reg_ctrl *ms)
1208 {
1209         ms->control = QLCNIC_MS_CTRL;
1210         ms->low = QLCNIC_MS_ADDR_LO;
1211         ms->hi = QLCNIC_MS_ADDR_HI;
1212         if (off & 0xf) {
1213                 ms->wd[0] = QLCNIC_MS_WRTDATA_LO;
1214                 ms->rd[0] = QLCNIC_MS_RDDATA_LO;
1215                 ms->wd[1] = QLCNIC_MS_WRTDATA_HI;
1216                 ms->rd[1] = QLCNIC_MS_RDDATA_HI;
1217                 ms->wd[2] = QLCNIC_MS_WRTDATA_ULO;
1218                 ms->wd[3] = QLCNIC_MS_WRTDATA_UHI;
1219                 ms->rd[2] = QLCNIC_MS_RDDATA_ULO;
1220                 ms->rd[3] = QLCNIC_MS_RDDATA_UHI;
1221         } else {
1222                 ms->wd[0] = QLCNIC_MS_WRTDATA_ULO;
1223                 ms->rd[0] = QLCNIC_MS_RDDATA_ULO;
1224                 ms->wd[1] = QLCNIC_MS_WRTDATA_UHI;
1225                 ms->rd[1] = QLCNIC_MS_RDDATA_UHI;
1226                 ms->wd[2] = QLCNIC_MS_WRTDATA_LO;
1227                 ms->wd[3] = QLCNIC_MS_WRTDATA_HI;
1228                 ms->rd[2] = QLCNIC_MS_RDDATA_LO;
1229                 ms->rd[3] = QLCNIC_MS_RDDATA_HI;
1230         }
1231
1232         ms->ocm_window = OCM_WIN_P3P(off);
1233         ms->off = GET_MEM_OFFS_2M(off);
1234 }
1235
1236 int qlcnic_pci_mem_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
1237 {
1238         int j, ret = 0;
1239         u32 temp, off8;
1240         struct qlcnic_ms_reg_ctrl ms;
1241
1242         /* Only 64-bit aligned access */
1243         if (off & 7)
1244                 return -EIO;
1245
1246         memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
1247         if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1248                             QLCNIC_ADDR_QDR_NET_MAX) ||
1249               ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
1250                             QLCNIC_ADDR_DDR_NET_MAX)))
1251                 return -EIO;
1252
1253         qlcnic_set_ms_controls(adapter, off, &ms);
1254
1255         if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
1256                 return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
1257                                                     ms.off, &data, 1);
1258
1259         off8 = off & ~0xf;
1260
1261         mutex_lock(&adapter->ahw->mem_lock);
1262
1263         qlcnic_ind_wr(adapter, ms.low, off8);
1264         qlcnic_ind_wr(adapter, ms.hi, 0);
1265
1266         qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
1267         qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
1268
1269         for (j = 0; j < MAX_CTL_CHECK; j++) {
1270                 temp = qlcnic_ind_rd(adapter, ms.control);
1271                 if ((temp & TA_CTL_BUSY) == 0)
1272                         break;
1273         }
1274
1275         if (j >= MAX_CTL_CHECK) {
1276                 ret = -EIO;
1277                 goto done;
1278         }
1279
1280         /* This is the modify part of read-modify-write */
1281         qlcnic_ind_wr(adapter, ms.wd[0], qlcnic_ind_rd(adapter, ms.rd[0]));
1282         qlcnic_ind_wr(adapter, ms.wd[1], qlcnic_ind_rd(adapter, ms.rd[1]));
1283         /* This is the write part of read-modify-write */
1284         qlcnic_ind_wr(adapter, ms.wd[2], data & 0xffffffff);
1285         qlcnic_ind_wr(adapter, ms.wd[3], (data >> 32) & 0xffffffff);
1286
1287         qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_ENABLE);
1288         qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_WRITE_START);
1289
1290         for (j = 0; j < MAX_CTL_CHECK; j++) {
1291                 temp = qlcnic_ind_rd(adapter, ms.control);
1292                 if ((temp & TA_CTL_BUSY) == 0)
1293                         break;
1294         }
1295
1296         if (j >= MAX_CTL_CHECK) {
1297                 if (printk_ratelimit())
1298                         dev_err(&adapter->pdev->dev,
1299                                         "failed to write through agent\n");
1300                 ret = -EIO;
1301         } else
1302                 ret = 0;
1303
1304 done:
1305         mutex_unlock(&adapter->ahw->mem_lock);
1306
1307         return ret;
1308 }
1309
1310 int qlcnic_pci_mem_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
1311 {
1312         int j, ret;
1313         u32 temp, off8;
1314         u64 val;
1315         struct qlcnic_ms_reg_ctrl ms;
1316
1317         /* Only 64-bit aligned access */
1318         if (off & 7)
1319                 return -EIO;
1320         if (!(ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1321                             QLCNIC_ADDR_QDR_NET_MAX) ||
1322               ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET,
1323                             QLCNIC_ADDR_DDR_NET_MAX)))
1324                 return -EIO;
1325
1326         memset(&ms, 0, sizeof(struct qlcnic_ms_reg_ctrl));
1327         qlcnic_set_ms_controls(adapter, off, &ms);
1328
1329         if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
1330                 return qlcnic_pci_mem_access_direct(adapter, ms.ocm_window,
1331                                                     ms.off, data, 0);
1332
1333         mutex_lock(&adapter->ahw->mem_lock);
1334
1335         off8 = off & ~0xf;
1336
1337         qlcnic_ind_wr(adapter, ms.low, off8);
1338         qlcnic_ind_wr(adapter, ms.hi, 0);
1339
1340         qlcnic_ind_wr(adapter, ms.control, TA_CTL_ENABLE);
1341         qlcnic_ind_wr(adapter, ms.control, QLCNIC_TA_START_ENABLE);
1342
1343         for (j = 0; j < MAX_CTL_CHECK; j++) {
1344                 temp = qlcnic_ind_rd(adapter, ms.control);
1345                 if ((temp & TA_CTL_BUSY) == 0)
1346                         break;
1347         }
1348
1349         if (j >= MAX_CTL_CHECK) {
1350                 if (printk_ratelimit())
1351                         dev_err(&adapter->pdev->dev,
1352                                         "failed to read through agent\n");
1353                 ret = -EIO;
1354         } else {
1355
1356                 temp = qlcnic_ind_rd(adapter, ms.rd[3]);
1357                 val = (u64)temp << 32;
1358                 val |= qlcnic_ind_rd(adapter, ms.rd[2]);
1359                 *data = val;
1360                 ret = 0;
1361         }
1362
1363         mutex_unlock(&adapter->ahw->mem_lock);
1364
1365         return ret;
1366 }
1367
1368 int qlcnic_82xx_get_board_info(struct qlcnic_adapter *adapter)
1369 {
1370         int offset, board_type, magic;
1371         struct pci_dev *pdev = adapter->pdev;
1372
1373         offset = QLCNIC_FW_MAGIC_OFFSET;
1374         if (qlcnic_rom_fast_read(adapter, offset, &magic))
1375                 return -EIO;
1376
1377         if (magic != QLCNIC_BDINFO_MAGIC) {
1378                 dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1379                         magic);
1380                 return -EIO;
1381         }
1382
1383         offset = QLCNIC_BRDTYPE_OFFSET;
1384         if (qlcnic_rom_fast_read(adapter, offset, &board_type))
1385                 return -EIO;
1386
1387         adapter->ahw->board_type = board_type;
1388
1389         if (board_type == QLCNIC_BRDTYPE_P3P_4_GB_MM) {
1390                 u32 gpio = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_PAD_GPIO_I);
1391                 if ((gpio & 0x8000) == 0)
1392                         board_type = QLCNIC_BRDTYPE_P3P_10G_TP;
1393         }
1394
1395         switch (board_type) {
1396         case QLCNIC_BRDTYPE_P3P_HMEZ:
1397         case QLCNIC_BRDTYPE_P3P_XG_LOM:
1398         case QLCNIC_BRDTYPE_P3P_10G_CX4:
1399         case QLCNIC_BRDTYPE_P3P_10G_CX4_LP:
1400         case QLCNIC_BRDTYPE_P3P_IMEZ:
1401         case QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS:
1402         case QLCNIC_BRDTYPE_P3P_10G_SFP_CT:
1403         case QLCNIC_BRDTYPE_P3P_10G_SFP_QT:
1404         case QLCNIC_BRDTYPE_P3P_10G_XFP:
1405         case QLCNIC_BRDTYPE_P3P_10000_BASE_T:
1406                 adapter->ahw->port_type = QLCNIC_XGBE;
1407                 break;
1408         case QLCNIC_BRDTYPE_P3P_REF_QG:
1409         case QLCNIC_BRDTYPE_P3P_4_GB:
1410         case QLCNIC_BRDTYPE_P3P_4_GB_MM:
1411                 adapter->ahw->port_type = QLCNIC_GBE;
1412                 break;
1413         case QLCNIC_BRDTYPE_P3P_10G_TP:
1414                 adapter->ahw->port_type = (adapter->portnum < 2) ?
1415                         QLCNIC_XGBE : QLCNIC_GBE;
1416                 break;
1417         default:
1418                 dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1419                 adapter->ahw->port_type = QLCNIC_XGBE;
1420                 break;
1421         }
1422
1423         return 0;
1424 }
1425
1426 int
1427 qlcnic_wol_supported(struct qlcnic_adapter *adapter)
1428 {
1429         u32 wol_cfg;
1430
1431         wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG_NV);
1432         if (wol_cfg & (1UL << adapter->portnum)) {
1433                 wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG);
1434                 if (wol_cfg & (1 << adapter->portnum))
1435                         return 1;
1436         }
1437
1438         return 0;
1439 }
1440
1441 int qlcnic_82xx_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
1442 {
1443         struct qlcnic_nic_req   req;
1444         int rv;
1445         u64 word;
1446
1447         memset(&req, 0, sizeof(struct qlcnic_nic_req));
1448         req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
1449
1450         word = QLCNIC_H2C_OPCODE_CONFIG_LED | ((u64)adapter->portnum << 16);
1451         req.req_hdr = cpu_to_le64(word);
1452
1453         req.words[0] = cpu_to_le64(((u64)rate << 32) | adapter->portnum);
1454         req.words[1] = cpu_to_le64(state);
1455
1456         rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
1457         if (rv)
1458                 dev_err(&adapter->pdev->dev, "LED configuration failed.\n");
1459
1460         return rv;
1461 }
1462
1463 void qlcnic_82xx_get_func_no(struct qlcnic_adapter *adapter)
1464 {
1465         void __iomem *msix_base_addr;
1466         u32 func;
1467         u32 msix_base;
1468
1469         pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
1470         msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
1471         msix_base = readl(msix_base_addr);
1472         func = (func - msix_base) / QLCNIC_MSIX_TBL_PGSIZE;
1473         adapter->ahw->pci_func = func;
1474 }
1475
1476 void qlcnic_82xx_read_crb(struct qlcnic_adapter *adapter, char *buf,
1477                           loff_t offset, size_t size)
1478 {
1479         u32 data;
1480         u64 qmdata;
1481
1482         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
1483                 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
1484                 memcpy(buf, &qmdata, size);
1485         } else {
1486                 data = QLCRD32(adapter, offset);
1487                 memcpy(buf, &data, size);
1488         }
1489 }
1490
1491 void qlcnic_82xx_write_crb(struct qlcnic_adapter *adapter, char *buf,
1492                            loff_t offset, size_t size)
1493 {
1494         u32 data;
1495         u64 qmdata;
1496
1497         if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
1498                 memcpy(&qmdata, buf, size);
1499                 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
1500         } else {
1501                 memcpy(&data, buf, size);
1502                 QLCWR32(adapter, offset, data);
1503         }
1504 }
1505
1506 int qlcnic_82xx_api_lock(struct qlcnic_adapter *adapter)
1507 {
1508         return qlcnic_pcie_sem_lock(adapter, 5, 0);
1509 }
1510
1511 void qlcnic_82xx_api_unlock(struct qlcnic_adapter *adapter)
1512 {
1513         qlcnic_pcie_sem_unlock(adapter, 5);
1514 }