1 /* Broadcom NetXtreme-C/E network driver. 2 * 3 * Copyright (c) 2014-2016 Broadcom Corporation 4 * Copyright (c) 2016-2017 Broadcom Limited 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation. 9 */ 10 11 #include <linux/module.h> 12 13 #include <linux/stringify.h> 14 #include <linux/kernel.h> 15 #include <linux/timer.h> 16 #include <linux/errno.h> 17 #include <linux/ioport.h> 18 #include <linux/slab.h> 19 #include <linux/vmalloc.h> 20 #include <linux/interrupt.h> 21 #include <linux/pci.h> 22 #include <linux/netdevice.h> 23 #include <linux/etherdevice.h> 24 #include <linux/skbuff.h> 25 #include <linux/dma-mapping.h> 26 #include <linux/bitops.h> 27 #include <linux/io.h> 28 #include <linux/irq.h> 29 #include <linux/delay.h> 30 #include <asm/byteorder.h> 31 #include <asm/page.h> 32 #include <linux/time.h> 33 #include <linux/mii.h> 34 #include <linux/if.h> 35 #include <linux/if_vlan.h> 36 #include <linux/rtc.h> 37 #include <linux/bpf.h> 38 #include <net/ip.h> 39 #include <net/tcp.h> 40 #include <net/udp.h> 41 #include <net/checksum.h> 42 #include <net/ip6_checksum.h> 43 #include <net/udp_tunnel.h> 44 #include <linux/workqueue.h> 45 #include <linux/prefetch.h> 46 #include <linux/cache.h> 47 #include <linux/log2.h> 48 #include <linux/aer.h> 49 #include <linux/bitmap.h> 50 #include <linux/cpu_rmap.h> 51 52 #include "bnxt_hsi.h" 53 #include "bnxt.h" 54 #include "bnxt_ulp.h" 55 #include "bnxt_sriov.h" 56 #include "bnxt_ethtool.h" 57 #include "bnxt_dcb.h" 58 #include "bnxt_xdp.h" 59 60 #define BNXT_TX_TIMEOUT (5 * HZ) 61 62 static const char version[] = 63 "Broadcom NetXtreme-C/E driver " DRV_MODULE_NAME " v" DRV_MODULE_VERSION "\n"; 64 65 MODULE_LICENSE("GPL"); 66 MODULE_DESCRIPTION("Broadcom BCM573xx network driver"); 67 MODULE_VERSION(DRV_MODULE_VERSION); 68 69 #define BNXT_RX_OFFSET (NET_SKB_PAD + NET_IP_ALIGN) 70 #define BNXT_RX_DMA_OFFSET NET_SKB_PAD 71 #define BNXT_RX_COPY_THRESH 256 72 73 #define BNXT_TX_PUSH_THRESH 164 74 75 enum board_idx { 76 BCM57301, 77 BCM57302, 78 BCM57304, 79 BCM57417_NPAR, 80 BCM58700, 81 BCM57311, 82 BCM57312, 83 BCM57402, 84 BCM57404, 85 BCM57406, 86 BCM57402_NPAR, 87 BCM57407, 88 BCM57412, 89 BCM57414, 90 BCM57416, 91 BCM57417, 92 BCM57412_NPAR, 93 BCM57314, 94 BCM57417_SFP, 95 BCM57416_SFP, 96 BCM57404_NPAR, 97 BCM57406_NPAR, 98 BCM57407_SFP, 99 BCM57407_NPAR, 100 BCM57414_NPAR, 101 BCM57416_NPAR, 102 BCM57452, 103 BCM57454, 104 NETXTREME_E_VF, 105 NETXTREME_C_VF, 106 }; 107 108 /* indexed by enum above */ 109 static const struct { 110 char *name; 111 } board_info[] = { 112 { "Broadcom BCM57301 NetXtreme-C 10Gb Ethernet" }, 113 { "Broadcom BCM57302 NetXtreme-C 10Gb/25Gb Ethernet" }, 114 { "Broadcom BCM57304 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, 115 { "Broadcom BCM57417 NetXtreme-E Ethernet Partition" }, 116 { "Broadcom BCM58700 Nitro 1Gb/2.5Gb/10Gb Ethernet" }, 117 { "Broadcom BCM57311 NetXtreme-C 10Gb Ethernet" }, 118 { "Broadcom BCM57312 NetXtreme-C 10Gb/25Gb Ethernet" }, 119 { "Broadcom BCM57402 NetXtreme-E 10Gb Ethernet" }, 120 { "Broadcom BCM57404 NetXtreme-E 10Gb/25Gb Ethernet" }, 121 { "Broadcom BCM57406 NetXtreme-E 10GBase-T Ethernet" }, 122 { "Broadcom BCM57402 NetXtreme-E Ethernet Partition" }, 123 { "Broadcom BCM57407 NetXtreme-E 10GBase-T Ethernet" }, 124 { "Broadcom BCM57412 NetXtreme-E 10Gb Ethernet" }, 125 { "Broadcom BCM57414 NetXtreme-E 10Gb/25Gb Ethernet" }, 126 { "Broadcom BCM57416 NetXtreme-E 10GBase-T Ethernet" }, 127 { "Broadcom BCM57417 NetXtreme-E 10GBase-T Ethernet" }, 128 { "Broadcom BCM57412 NetXtreme-E Ethernet Partition" }, 129 { "Broadcom BCM57314 NetXtreme-C 10Gb/25Gb/40Gb/50Gb Ethernet" }, 130 { "Broadcom BCM57417 NetXtreme-E 10Gb/25Gb Ethernet" }, 131 { "Broadcom BCM57416 NetXtreme-E 10Gb Ethernet" }, 132 { "Broadcom BCM57404 NetXtreme-E Ethernet Partition" }, 133 { "Broadcom BCM57406 NetXtreme-E Ethernet Partition" }, 134 { "Broadcom BCM57407 NetXtreme-E 25Gb Ethernet" }, 135 { "Broadcom BCM57407 NetXtreme-E Ethernet Partition" }, 136 { "Broadcom BCM57414 NetXtreme-E Ethernet Partition" }, 137 { "Broadcom BCM57416 NetXtreme-E Ethernet Partition" }, 138 { "Broadcom BCM57452 NetXtreme-E 10Gb/25Gb/40Gb/50Gb Ethernet" }, 139 { "Broadcom BCM57454 NetXtreme-E 10Gb/25Gb/40Gb/50Gb/100Gb Ethernet" }, 140 { "Broadcom NetXtreme-E Ethernet Virtual Function" }, 141 { "Broadcom NetXtreme-C Ethernet Virtual Function" }, 142 }; 143 144 static const struct pci_device_id bnxt_pci_tbl[] = { 145 { PCI_VDEVICE(BROADCOM, 0x16c0), .driver_data = BCM57417_NPAR }, 146 { PCI_VDEVICE(BROADCOM, 0x16c8), .driver_data = BCM57301 }, 147 { PCI_VDEVICE(BROADCOM, 0x16c9), .driver_data = BCM57302 }, 148 { PCI_VDEVICE(BROADCOM, 0x16ca), .driver_data = BCM57304 }, 149 { PCI_VDEVICE(BROADCOM, 0x16cc), .driver_data = BCM57417_NPAR }, 150 { PCI_VDEVICE(BROADCOM, 0x16cd), .driver_data = BCM58700 }, 151 { PCI_VDEVICE(BROADCOM, 0x16ce), .driver_data = BCM57311 }, 152 { PCI_VDEVICE(BROADCOM, 0x16cf), .driver_data = BCM57312 }, 153 { PCI_VDEVICE(BROADCOM, 0x16d0), .driver_data = BCM57402 }, 154 { PCI_VDEVICE(BROADCOM, 0x16d1), .driver_data = BCM57404 }, 155 { PCI_VDEVICE(BROADCOM, 0x16d2), .driver_data = BCM57406 }, 156 { PCI_VDEVICE(BROADCOM, 0x16d4), .driver_data = BCM57402_NPAR }, 157 { PCI_VDEVICE(BROADCOM, 0x16d5), .driver_data = BCM57407 }, 158 { PCI_VDEVICE(BROADCOM, 0x16d6), .driver_data = BCM57412 }, 159 { PCI_VDEVICE(BROADCOM, 0x16d7), .driver_data = BCM57414 }, 160 { PCI_VDEVICE(BROADCOM, 0x16d8), .driver_data = BCM57416 }, 161 { PCI_VDEVICE(BROADCOM, 0x16d9), .driver_data = BCM57417 }, 162 { PCI_VDEVICE(BROADCOM, 0x16de), .driver_data = BCM57412_NPAR }, 163 { PCI_VDEVICE(BROADCOM, 0x16df), .driver_data = BCM57314 }, 164 { PCI_VDEVICE(BROADCOM, 0x16e2), .driver_data = BCM57417_SFP }, 165 { PCI_VDEVICE(BROADCOM, 0x16e3), .driver_data = BCM57416_SFP }, 166 { PCI_VDEVICE(BROADCOM, 0x16e7), .driver_data = BCM57404_NPAR }, 167 { PCI_VDEVICE(BROADCOM, 0x16e8), .driver_data = BCM57406_NPAR }, 168 { PCI_VDEVICE(BROADCOM, 0x16e9), .driver_data = BCM57407_SFP }, 169 { PCI_VDEVICE(BROADCOM, 0x16ea), .driver_data = BCM57407_NPAR }, 170 { PCI_VDEVICE(BROADCOM, 0x16eb), .driver_data = BCM57412_NPAR }, 171 { PCI_VDEVICE(BROADCOM, 0x16ec), .driver_data = BCM57414_NPAR }, 172 { PCI_VDEVICE(BROADCOM, 0x16ed), .driver_data = BCM57414_NPAR }, 173 { PCI_VDEVICE(BROADCOM, 0x16ee), .driver_data = BCM57416_NPAR }, 174 { PCI_VDEVICE(BROADCOM, 0x16ef), .driver_data = BCM57416_NPAR }, 175 { PCI_VDEVICE(BROADCOM, 0x16f1), .driver_data = BCM57452 }, 176 { PCI_VDEVICE(BROADCOM, 0x1614), .driver_data = BCM57454 }, 177 #ifdef CONFIG_BNXT_SRIOV 178 { PCI_VDEVICE(BROADCOM, 0x16c1), .driver_data = NETXTREME_E_VF }, 179 { PCI_VDEVICE(BROADCOM, 0x16cb), .driver_data = NETXTREME_C_VF }, 180 { PCI_VDEVICE(BROADCOM, 0x16d3), .driver_data = NETXTREME_E_VF }, 181 { PCI_VDEVICE(BROADCOM, 0x16dc), .driver_data = NETXTREME_E_VF }, 182 { PCI_VDEVICE(BROADCOM, 0x16e1), .driver_data = NETXTREME_C_VF }, 183 { PCI_VDEVICE(BROADCOM, 0x16e5), .driver_data = NETXTREME_C_VF }, 184 #endif 185 { 0 } 186 }; 187 188 MODULE_DEVICE_TABLE(pci, bnxt_pci_tbl); 189 190 static const u16 bnxt_vf_req_snif[] = { 191 HWRM_FUNC_CFG, 192 HWRM_PORT_PHY_QCFG, 193 HWRM_CFA_L2_FILTER_ALLOC, 194 }; 195 196 static const u16 bnxt_async_events_arr[] = { 197 ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE, 198 ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD, 199 ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED, 200 ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE, 201 ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE, 202 }; 203 204 static bool bnxt_vf_pciid(enum board_idx idx) 205 { 206 return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF); 207 } 208 209 #define DB_CP_REARM_FLAGS (DB_KEY_CP | DB_IDX_VALID) 210 #define DB_CP_FLAGS (DB_KEY_CP | DB_IDX_VALID | DB_IRQ_DIS) 211 #define DB_CP_IRQ_DIS_FLAGS (DB_KEY_CP | DB_IRQ_DIS) 212 213 #define BNXT_CP_DB_REARM(db, raw_cons) \ 214 writel(DB_CP_REARM_FLAGS | RING_CMP(raw_cons), db) 215 216 #define BNXT_CP_DB(db, raw_cons) \ 217 writel(DB_CP_FLAGS | RING_CMP(raw_cons), db) 218 219 #define BNXT_CP_DB_IRQ_DIS(db) \ 220 writel(DB_CP_IRQ_DIS_FLAGS, db) 221 222 const u16 bnxt_lhint_arr[] = { 223 TX_BD_FLAGS_LHINT_512_AND_SMALLER, 224 TX_BD_FLAGS_LHINT_512_TO_1023, 225 TX_BD_FLAGS_LHINT_1024_TO_2047, 226 TX_BD_FLAGS_LHINT_1024_TO_2047, 227 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 228 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 229 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 230 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 231 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 232 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 233 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 234 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 235 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 236 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 237 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 238 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 239 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 240 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 241 TX_BD_FLAGS_LHINT_2048_AND_LARGER, 242 }; 243 244 static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev) 245 { 246 struct bnxt *bp = netdev_priv(dev); 247 struct tx_bd *txbd; 248 struct tx_bd_ext *txbd1; 249 struct netdev_queue *txq; 250 int i; 251 dma_addr_t mapping; 252 unsigned int length, pad = 0; 253 u32 len, free_size, vlan_tag_flags, cfa_action, flags; 254 u16 prod, last_frag; 255 struct pci_dev *pdev = bp->pdev; 256 struct bnxt_tx_ring_info *txr; 257 struct bnxt_sw_tx_bd *tx_buf; 258 259 i = skb_get_queue_mapping(skb); 260 if (unlikely(i >= bp->tx_nr_rings)) { 261 dev_kfree_skb_any(skb); 262 return NETDEV_TX_OK; 263 } 264 265 txq = netdev_get_tx_queue(dev, i); 266 txr = &bp->tx_ring[bp->tx_ring_map[i]]; 267 prod = txr->tx_prod; 268 269 free_size = bnxt_tx_avail(bp, txr); 270 if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) { 271 netif_tx_stop_queue(txq); 272 return NETDEV_TX_BUSY; 273 } 274 275 length = skb->len; 276 len = skb_headlen(skb); 277 last_frag = skb_shinfo(skb)->nr_frags; 278 279 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 280 281 txbd->tx_bd_opaque = prod; 282 283 tx_buf = &txr->tx_buf_ring[prod]; 284 tx_buf->skb = skb; 285 tx_buf->nr_frags = last_frag; 286 287 vlan_tag_flags = 0; 288 cfa_action = 0; 289 if (skb_vlan_tag_present(skb)) { 290 vlan_tag_flags = TX_BD_CFA_META_KEY_VLAN | 291 skb_vlan_tag_get(skb); 292 /* Currently supports 8021Q, 8021AD vlan offloads 293 * QINQ1, QINQ2, QINQ3 vlan headers are deprecated 294 */ 295 if (skb->vlan_proto == htons(ETH_P_8021Q)) 296 vlan_tag_flags |= 1 << TX_BD_CFA_META_TPID_SHIFT; 297 } 298 299 if (free_size == bp->tx_ring_size && length <= bp->tx_push_thresh) { 300 struct tx_push_buffer *tx_push_buf = txr->tx_push; 301 struct tx_push_bd *tx_push = &tx_push_buf->push_bd; 302 struct tx_bd_ext *tx_push1 = &tx_push->txbd2; 303 void *pdata = tx_push_buf->data; 304 u64 *end; 305 int j, push_len; 306 307 /* Set COAL_NOW to be ready quickly for the next push */ 308 tx_push->tx_bd_len_flags_type = 309 cpu_to_le32((length << TX_BD_LEN_SHIFT) | 310 TX_BD_TYPE_LONG_TX_BD | 311 TX_BD_FLAGS_LHINT_512_AND_SMALLER | 312 TX_BD_FLAGS_COAL_NOW | 313 TX_BD_FLAGS_PACKET_END | 314 (2 << TX_BD_FLAGS_BD_CNT_SHIFT)); 315 316 if (skb->ip_summed == CHECKSUM_PARTIAL) 317 tx_push1->tx_bd_hsize_lflags = 318 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); 319 else 320 tx_push1->tx_bd_hsize_lflags = 0; 321 322 tx_push1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags); 323 tx_push1->tx_bd_cfa_action = cpu_to_le32(cfa_action); 324 325 end = pdata + length; 326 end = PTR_ALIGN(end, 8) - 1; 327 *end = 0; 328 329 skb_copy_from_linear_data(skb, pdata, len); 330 pdata += len; 331 for (j = 0; j < last_frag; j++) { 332 skb_frag_t *frag = &skb_shinfo(skb)->frags[j]; 333 void *fptr; 334 335 fptr = skb_frag_address_safe(frag); 336 if (!fptr) 337 goto normal_tx; 338 339 memcpy(pdata, fptr, skb_frag_size(frag)); 340 pdata += skb_frag_size(frag); 341 } 342 343 txbd->tx_bd_len_flags_type = tx_push->tx_bd_len_flags_type; 344 txbd->tx_bd_haddr = txr->data_mapping; 345 prod = NEXT_TX(prod); 346 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 347 memcpy(txbd, tx_push1, sizeof(*txbd)); 348 prod = NEXT_TX(prod); 349 tx_push->doorbell = 350 cpu_to_le32(DB_KEY_TX_PUSH | DB_LONG_TX_PUSH | prod); 351 txr->tx_prod = prod; 352 353 tx_buf->is_push = 1; 354 netdev_tx_sent_queue(txq, skb->len); 355 wmb(); /* Sync is_push and byte queue before pushing data */ 356 357 push_len = (length + sizeof(*tx_push) + 7) / 8; 358 if (push_len > 16) { 359 __iowrite64_copy(txr->tx_doorbell, tx_push_buf, 16); 360 __iowrite32_copy(txr->tx_doorbell + 4, tx_push_buf + 1, 361 (push_len - 16) << 1); 362 } else { 363 __iowrite64_copy(txr->tx_doorbell, tx_push_buf, 364 push_len); 365 } 366 367 goto tx_done; 368 } 369 370 normal_tx: 371 if (length < BNXT_MIN_PKT_SIZE) { 372 pad = BNXT_MIN_PKT_SIZE - length; 373 if (skb_pad(skb, pad)) { 374 /* SKB already freed. */ 375 tx_buf->skb = NULL; 376 return NETDEV_TX_OK; 377 } 378 length = BNXT_MIN_PKT_SIZE; 379 } 380 381 mapping = dma_map_single(&pdev->dev, skb->data, len, DMA_TO_DEVICE); 382 383 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) { 384 dev_kfree_skb_any(skb); 385 tx_buf->skb = NULL; 386 return NETDEV_TX_OK; 387 } 388 389 dma_unmap_addr_set(tx_buf, mapping, mapping); 390 flags = (len << TX_BD_LEN_SHIFT) | TX_BD_TYPE_LONG_TX_BD | 391 ((last_frag + 2) << TX_BD_FLAGS_BD_CNT_SHIFT); 392 393 txbd->tx_bd_haddr = cpu_to_le64(mapping); 394 395 prod = NEXT_TX(prod); 396 txbd1 = (struct tx_bd_ext *) 397 &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 398 399 txbd1->tx_bd_hsize_lflags = 0; 400 if (skb_is_gso(skb)) { 401 u32 hdr_len; 402 403 if (skb->encapsulation) 404 hdr_len = skb_inner_network_offset(skb) + 405 skb_inner_network_header_len(skb) + 406 inner_tcp_hdrlen(skb); 407 else 408 hdr_len = skb_transport_offset(skb) + 409 tcp_hdrlen(skb); 410 411 txbd1->tx_bd_hsize_lflags = cpu_to_le32(TX_BD_FLAGS_LSO | 412 TX_BD_FLAGS_T_IPID | 413 (hdr_len << (TX_BD_HSIZE_SHIFT - 1))); 414 length = skb_shinfo(skb)->gso_size; 415 txbd1->tx_bd_mss = cpu_to_le32(length); 416 length += hdr_len; 417 } else if (skb->ip_summed == CHECKSUM_PARTIAL) { 418 txbd1->tx_bd_hsize_lflags = 419 cpu_to_le32(TX_BD_FLAGS_TCP_UDP_CHKSUM); 420 txbd1->tx_bd_mss = 0; 421 } 422 423 length >>= 9; 424 flags |= bnxt_lhint_arr[length]; 425 txbd->tx_bd_len_flags_type = cpu_to_le32(flags); 426 427 txbd1->tx_bd_cfa_meta = cpu_to_le32(vlan_tag_flags); 428 txbd1->tx_bd_cfa_action = cpu_to_le32(cfa_action); 429 for (i = 0; i < last_frag; i++) { 430 skb_frag_t *frag = &skb_shinfo(skb)->frags[i]; 431 432 prod = NEXT_TX(prod); 433 txbd = &txr->tx_desc_ring[TX_RING(prod)][TX_IDX(prod)]; 434 435 len = skb_frag_size(frag); 436 mapping = skb_frag_dma_map(&pdev->dev, frag, 0, len, 437 DMA_TO_DEVICE); 438 439 if (unlikely(dma_mapping_error(&pdev->dev, mapping))) 440 goto tx_dma_error; 441 442 tx_buf = &txr->tx_buf_ring[prod]; 443 dma_unmap_addr_set(tx_buf, mapping, mapping); 444 445 txbd->tx_bd_haddr = cpu_to_le64(mapping); 446 447 flags = len << TX_BD_LEN_SHIFT; 448 txbd->tx_bd_len_flags_type = cpu_to_le32(flags); 449 } 450 451 flags &= ~TX_BD_LEN; 452 txbd->tx_bd_len_flags_type = 453 cpu_to_le32(((len + pad) << TX_BD_LEN_SHIFT) | flags | 454 TX_BD_FLAGS_PACKET_END); 455 456 netdev_tx_sent_queue(txq, skb->len); 457 458 /* Sync BD data before updating doorbell */ 459 wmb(); 460 461 prod = NEXT_TX(prod); 462 txr->tx_prod = prod; 463 464 writel(DB_KEY_TX | prod, txr->tx_doorbell); 465 writel(DB_KEY_TX | prod, txr->tx_doorbell); 466 467 tx_done: 468 469 mmiowb(); 470 471 if (unlikely(bnxt_tx_avail(bp, txr) <= MAX_SKB_FRAGS + 1)) { 472 netif_tx_stop_queue(txq); 473 474 /* netif_tx_stop_queue() must be done before checking 475 * tx index in bnxt_tx_avail() below, because in 476 * bnxt_tx_int(), we update tx index before checking for 477 * netif_tx_queue_stopped(). 478 */ 479 smp_mb(); 480 if (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh) 481 netif_tx_wake_queue(txq); 482 } 483 return NETDEV_TX_OK; 484 485 tx_dma_error: 486 last_frag = i; 487 488 /* start back at beginning and unmap skb */ 489 prod = txr->tx_prod; 490 tx_buf = &txr->tx_buf_ring[prod]; 491 tx_buf->skb = NULL; 492 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), 493 skb_headlen(skb), PCI_DMA_TODEVICE); 494 prod = NEXT_TX(prod); 495 496 /* unmap remaining mapped pages */ 497 for (i = 0; i < last_frag; i++) { 498 prod = NEXT_TX(prod); 499 tx_buf = &txr->tx_buf_ring[prod]; 500 dma_unmap_page(&pdev->dev, dma_unmap_addr(tx_buf, mapping), 501 skb_frag_size(&skb_shinfo(skb)->frags[i]), 502 PCI_DMA_TODEVICE); 503 } 504 505 dev_kfree_skb_any(skb); 506 return NETDEV_TX_OK; 507 } 508 509 static void bnxt_tx_int(struct bnxt *bp, struct bnxt_napi *bnapi, int nr_pkts) 510 { 511 struct bnxt_tx_ring_info *txr = bnapi->tx_ring; 512 struct netdev_queue *txq = netdev_get_tx_queue(bp->dev, txr->txq_index); 513 u16 cons = txr->tx_cons; 514 struct pci_dev *pdev = bp->pdev; 515 int i; 516 unsigned int tx_bytes = 0; 517 518 for (i = 0; i < nr_pkts; i++) { 519 struct bnxt_sw_tx_bd *tx_buf; 520 struct sk_buff *skb; 521 int j, last; 522 523 tx_buf = &txr->tx_buf_ring[cons]; 524 cons = NEXT_TX(cons); 525 skb = tx_buf->skb; 526 tx_buf->skb = NULL; 527 528 if (tx_buf->is_push) { 529 tx_buf->is_push = 0; 530 goto next_tx_int; 531 } 532 533 dma_unmap_single(&pdev->dev, dma_unmap_addr(tx_buf, mapping), 534 skb_headlen(skb), PCI_DMA_TODEVICE); 535 last = tx_buf->nr_frags; 536 537 for (j = 0; j < last; j++) { 538 cons = NEXT_TX(cons); 539 tx_buf = &txr->tx_buf_ring[cons]; 540 dma_unmap_page( 541 &pdev->dev, 542 dma_unmap_addr(tx_buf, mapping), 543 skb_frag_size(&skb_shinfo(skb)->frags[j]), 544 PCI_DMA_TODEVICE); 545 } 546 547 next_tx_int: 548 cons = NEXT_TX(cons); 549 550 tx_bytes += skb->len; 551 dev_kfree_skb_any(skb); 552 } 553 554 netdev_tx_completed_queue(txq, nr_pkts, tx_bytes); 555 txr->tx_cons = cons; 556 557 /* Need to make the tx_cons update visible to bnxt_start_xmit() 558 * before checking for netif_tx_queue_stopped(). Without the 559 * memory barrier, there is a small possibility that bnxt_start_xmit() 560 * will miss it and cause the queue to be stopped forever. 561 */ 562 smp_mb(); 563 564 if (unlikely(netif_tx_queue_stopped(txq)) && 565 (bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh)) { 566 __netif_tx_lock(txq, smp_processor_id()); 567 if (netif_tx_queue_stopped(txq) && 568 bnxt_tx_avail(bp, txr) > bp->tx_wake_thresh && 569 txr->dev_state != BNXT_DEV_STATE_CLOSING) 570 netif_tx_wake_queue(txq); 571 __netif_tx_unlock(txq); 572 } 573 } 574 575 static struct page *__bnxt_alloc_rx_page(struct bnxt *bp, dma_addr_t *mapping, 576 gfp_t gfp) 577 { 578 struct device *dev = &bp->pdev->dev; 579 struct page *page; 580 581 page = alloc_page(gfp); 582 if (!page) 583 return NULL; 584 585 *mapping = dma_map_page(dev, page, 0, PAGE_SIZE, bp->rx_dir); 586 if (dma_mapping_error(dev, *mapping)) { 587 __free_page(page); 588 return NULL; 589 } 590 *mapping += bp->rx_dma_offset; 591 return page; 592 } 593 594 static inline u8 *__bnxt_alloc_rx_data(struct bnxt *bp, dma_addr_t *mapping, 595 gfp_t gfp) 596 { 597 u8 *data; 598 struct pci_dev *pdev = bp->pdev; 599 600 data = kmalloc(bp->rx_buf_size, gfp); 601 if (!data) 602 return NULL; 603 604 *mapping = dma_map_single(&pdev->dev, data + bp->rx_dma_offset, 605 bp->rx_buf_use_size, bp->rx_dir); 606 607 if (dma_mapping_error(&pdev->dev, *mapping)) { 608 kfree(data); 609 data = NULL; 610 } 611 return data; 612 } 613 614 int bnxt_alloc_rx_data(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 615 u16 prod, gfp_t gfp) 616 { 617 struct rx_bd *rxbd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 618 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[prod]; 619 dma_addr_t mapping; 620 621 if (BNXT_RX_PAGE_MODE(bp)) { 622 struct page *page = __bnxt_alloc_rx_page(bp, &mapping, gfp); 623 624 if (!page) 625 return -ENOMEM; 626 627 rx_buf->data = page; 628 rx_buf->data_ptr = page_address(page) + bp->rx_offset; 629 } else { 630 u8 *data = __bnxt_alloc_rx_data(bp, &mapping, gfp); 631 632 if (!data) 633 return -ENOMEM; 634 635 rx_buf->data = data; 636 rx_buf->data_ptr = data + bp->rx_offset; 637 } 638 rx_buf->mapping = mapping; 639 640 rxbd->rx_bd_haddr = cpu_to_le64(mapping); 641 return 0; 642 } 643 644 void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data) 645 { 646 u16 prod = rxr->rx_prod; 647 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; 648 struct rx_bd *cons_bd, *prod_bd; 649 650 prod_rx_buf = &rxr->rx_buf_ring[prod]; 651 cons_rx_buf = &rxr->rx_buf_ring[cons]; 652 653 prod_rx_buf->data = data; 654 prod_rx_buf->data_ptr = cons_rx_buf->data_ptr; 655 656 prod_rx_buf->mapping = cons_rx_buf->mapping; 657 658 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 659 cons_bd = &rxr->rx_desc_ring[RX_RING(cons)][RX_IDX(cons)]; 660 661 prod_bd->rx_bd_haddr = cons_bd->rx_bd_haddr; 662 } 663 664 static inline u16 bnxt_find_next_agg_idx(struct bnxt_rx_ring_info *rxr, u16 idx) 665 { 666 u16 next, max = rxr->rx_agg_bmap_size; 667 668 next = find_next_zero_bit(rxr->rx_agg_bmap, max, idx); 669 if (next >= max) 670 next = find_first_zero_bit(rxr->rx_agg_bmap, max); 671 return next; 672 } 673 674 static inline int bnxt_alloc_rx_page(struct bnxt *bp, 675 struct bnxt_rx_ring_info *rxr, 676 u16 prod, gfp_t gfp) 677 { 678 struct rx_bd *rxbd = 679 &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 680 struct bnxt_sw_rx_agg_bd *rx_agg_buf; 681 struct pci_dev *pdev = bp->pdev; 682 struct page *page; 683 dma_addr_t mapping; 684 u16 sw_prod = rxr->rx_sw_agg_prod; 685 unsigned int offset = 0; 686 687 if (PAGE_SIZE > BNXT_RX_PAGE_SIZE) { 688 page = rxr->rx_page; 689 if (!page) { 690 page = alloc_page(gfp); 691 if (!page) 692 return -ENOMEM; 693 rxr->rx_page = page; 694 rxr->rx_page_offset = 0; 695 } 696 offset = rxr->rx_page_offset; 697 rxr->rx_page_offset += BNXT_RX_PAGE_SIZE; 698 if (rxr->rx_page_offset == PAGE_SIZE) 699 rxr->rx_page = NULL; 700 else 701 get_page(page); 702 } else { 703 page = alloc_page(gfp); 704 if (!page) 705 return -ENOMEM; 706 } 707 708 mapping = dma_map_page(&pdev->dev, page, offset, BNXT_RX_PAGE_SIZE, 709 PCI_DMA_FROMDEVICE); 710 if (dma_mapping_error(&pdev->dev, mapping)) { 711 __free_page(page); 712 return -EIO; 713 } 714 715 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) 716 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); 717 718 __set_bit(sw_prod, rxr->rx_agg_bmap); 719 rx_agg_buf = &rxr->rx_agg_ring[sw_prod]; 720 rxr->rx_sw_agg_prod = NEXT_RX_AGG(sw_prod); 721 722 rx_agg_buf->page = page; 723 rx_agg_buf->offset = offset; 724 rx_agg_buf->mapping = mapping; 725 rxbd->rx_bd_haddr = cpu_to_le64(mapping); 726 rxbd->rx_bd_opaque = sw_prod; 727 return 0; 728 } 729 730 static void bnxt_reuse_rx_agg_bufs(struct bnxt_napi *bnapi, u16 cp_cons, 731 u32 agg_bufs) 732 { 733 struct bnxt *bp = bnapi->bp; 734 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 735 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 736 u16 prod = rxr->rx_agg_prod; 737 u16 sw_prod = rxr->rx_sw_agg_prod; 738 u32 i; 739 740 for (i = 0; i < agg_bufs; i++) { 741 u16 cons; 742 struct rx_agg_cmp *agg; 743 struct bnxt_sw_rx_agg_bd *cons_rx_buf, *prod_rx_buf; 744 struct rx_bd *prod_bd; 745 struct page *page; 746 747 agg = (struct rx_agg_cmp *) 748 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 749 cons = agg->rx_agg_cmp_opaque; 750 __clear_bit(cons, rxr->rx_agg_bmap); 751 752 if (unlikely(test_bit(sw_prod, rxr->rx_agg_bmap))) 753 sw_prod = bnxt_find_next_agg_idx(rxr, sw_prod); 754 755 __set_bit(sw_prod, rxr->rx_agg_bmap); 756 prod_rx_buf = &rxr->rx_agg_ring[sw_prod]; 757 cons_rx_buf = &rxr->rx_agg_ring[cons]; 758 759 /* It is possible for sw_prod to be equal to cons, so 760 * set cons_rx_buf->page to NULL first. 761 */ 762 page = cons_rx_buf->page; 763 cons_rx_buf->page = NULL; 764 prod_rx_buf->page = page; 765 prod_rx_buf->offset = cons_rx_buf->offset; 766 767 prod_rx_buf->mapping = cons_rx_buf->mapping; 768 769 prod_bd = &rxr->rx_agg_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 770 771 prod_bd->rx_bd_haddr = cpu_to_le64(cons_rx_buf->mapping); 772 prod_bd->rx_bd_opaque = sw_prod; 773 774 prod = NEXT_RX_AGG(prod); 775 sw_prod = NEXT_RX_AGG(sw_prod); 776 cp_cons = NEXT_CMP(cp_cons); 777 } 778 rxr->rx_agg_prod = prod; 779 rxr->rx_sw_agg_prod = sw_prod; 780 } 781 782 static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp, 783 struct bnxt_rx_ring_info *rxr, 784 u16 cons, void *data, u8 *data_ptr, 785 dma_addr_t dma_addr, 786 unsigned int offset_and_len) 787 { 788 unsigned int payload = offset_and_len >> 16; 789 unsigned int len = offset_and_len & 0xffff; 790 struct skb_frag_struct *frag; 791 struct page *page = data; 792 u16 prod = rxr->rx_prod; 793 struct sk_buff *skb; 794 int off, err; 795 796 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 797 if (unlikely(err)) { 798 bnxt_reuse_rx_data(rxr, cons, data); 799 return NULL; 800 } 801 dma_addr -= bp->rx_dma_offset; 802 dma_unmap_page(&bp->pdev->dev, dma_addr, PAGE_SIZE, bp->rx_dir); 803 804 if (unlikely(!payload)) 805 payload = eth_get_headlen(data_ptr, len); 806 807 skb = napi_alloc_skb(&rxr->bnapi->napi, payload); 808 if (!skb) { 809 __free_page(page); 810 return NULL; 811 } 812 813 off = (void *)data_ptr - page_address(page); 814 skb_add_rx_frag(skb, 0, page, off, len, PAGE_SIZE); 815 memcpy(skb->data - NET_IP_ALIGN, data_ptr - NET_IP_ALIGN, 816 payload + NET_IP_ALIGN); 817 818 frag = &skb_shinfo(skb)->frags[0]; 819 skb_frag_size_sub(frag, payload); 820 frag->page_offset += payload; 821 skb->data_len -= payload; 822 skb->tail += payload; 823 824 return skb; 825 } 826 827 static struct sk_buff *bnxt_rx_skb(struct bnxt *bp, 828 struct bnxt_rx_ring_info *rxr, u16 cons, 829 void *data, u8 *data_ptr, 830 dma_addr_t dma_addr, 831 unsigned int offset_and_len) 832 { 833 u16 prod = rxr->rx_prod; 834 struct sk_buff *skb; 835 int err; 836 837 err = bnxt_alloc_rx_data(bp, rxr, prod, GFP_ATOMIC); 838 if (unlikely(err)) { 839 bnxt_reuse_rx_data(rxr, cons, data); 840 return NULL; 841 } 842 843 skb = build_skb(data, 0); 844 dma_unmap_single(&bp->pdev->dev, dma_addr, bp->rx_buf_use_size, 845 bp->rx_dir); 846 if (!skb) { 847 kfree(data); 848 return NULL; 849 } 850 851 skb_reserve(skb, bp->rx_offset); 852 skb_put(skb, offset_and_len & 0xffff); 853 return skb; 854 } 855 856 static struct sk_buff *bnxt_rx_pages(struct bnxt *bp, struct bnxt_napi *bnapi, 857 struct sk_buff *skb, u16 cp_cons, 858 u32 agg_bufs) 859 { 860 struct pci_dev *pdev = bp->pdev; 861 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 862 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 863 u16 prod = rxr->rx_agg_prod; 864 u32 i; 865 866 for (i = 0; i < agg_bufs; i++) { 867 u16 cons, frag_len; 868 struct rx_agg_cmp *agg; 869 struct bnxt_sw_rx_agg_bd *cons_rx_buf; 870 struct page *page; 871 dma_addr_t mapping; 872 873 agg = (struct rx_agg_cmp *) 874 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 875 cons = agg->rx_agg_cmp_opaque; 876 frag_len = (le32_to_cpu(agg->rx_agg_cmp_len_flags_type) & 877 RX_AGG_CMP_LEN) >> RX_AGG_CMP_LEN_SHIFT; 878 879 cons_rx_buf = &rxr->rx_agg_ring[cons]; 880 skb_fill_page_desc(skb, i, cons_rx_buf->page, 881 cons_rx_buf->offset, frag_len); 882 __clear_bit(cons, rxr->rx_agg_bmap); 883 884 /* It is possible for bnxt_alloc_rx_page() to allocate 885 * a sw_prod index that equals the cons index, so we 886 * need to clear the cons entry now. 887 */ 888 mapping = cons_rx_buf->mapping; 889 page = cons_rx_buf->page; 890 cons_rx_buf->page = NULL; 891 892 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_ATOMIC) != 0) { 893 struct skb_shared_info *shinfo; 894 unsigned int nr_frags; 895 896 shinfo = skb_shinfo(skb); 897 nr_frags = --shinfo->nr_frags; 898 __skb_frag_set_page(&shinfo->frags[nr_frags], NULL); 899 900 dev_kfree_skb(skb); 901 902 cons_rx_buf->page = page; 903 904 /* Update prod since possibly some pages have been 905 * allocated already. 906 */ 907 rxr->rx_agg_prod = prod; 908 bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs - i); 909 return NULL; 910 } 911 912 dma_unmap_page(&pdev->dev, mapping, BNXT_RX_PAGE_SIZE, 913 PCI_DMA_FROMDEVICE); 914 915 skb->data_len += frag_len; 916 skb->len += frag_len; 917 skb->truesize += PAGE_SIZE; 918 919 prod = NEXT_RX_AGG(prod); 920 cp_cons = NEXT_CMP(cp_cons); 921 } 922 rxr->rx_agg_prod = prod; 923 return skb; 924 } 925 926 static int bnxt_agg_bufs_valid(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, 927 u8 agg_bufs, u32 *raw_cons) 928 { 929 u16 last; 930 struct rx_agg_cmp *agg; 931 932 *raw_cons = ADV_RAW_CMP(*raw_cons, agg_bufs); 933 last = RING_CMP(*raw_cons); 934 agg = (struct rx_agg_cmp *) 935 &cpr->cp_desc_ring[CP_RING(last)][CP_IDX(last)]; 936 return RX_AGG_CMP_VALID(agg, *raw_cons); 937 } 938 939 static inline struct sk_buff *bnxt_copy_skb(struct bnxt_napi *bnapi, u8 *data, 940 unsigned int len, 941 dma_addr_t mapping) 942 { 943 struct bnxt *bp = bnapi->bp; 944 struct pci_dev *pdev = bp->pdev; 945 struct sk_buff *skb; 946 947 skb = napi_alloc_skb(&bnapi->napi, len); 948 if (!skb) 949 return NULL; 950 951 dma_sync_single_for_cpu(&pdev->dev, mapping, bp->rx_copy_thresh, 952 bp->rx_dir); 953 954 memcpy(skb->data - NET_IP_ALIGN, data - NET_IP_ALIGN, 955 len + NET_IP_ALIGN); 956 957 dma_sync_single_for_device(&pdev->dev, mapping, bp->rx_copy_thresh, 958 bp->rx_dir); 959 960 skb_put(skb, len); 961 return skb; 962 } 963 964 static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_napi *bnapi, 965 u32 *raw_cons, void *cmp) 966 { 967 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 968 struct rx_cmp *rxcmp = cmp; 969 u32 tmp_raw_cons = *raw_cons; 970 u8 cmp_type, agg_bufs = 0; 971 972 cmp_type = RX_CMP_TYPE(rxcmp); 973 974 if (cmp_type == CMP_TYPE_RX_L2_CMP) { 975 agg_bufs = (le32_to_cpu(rxcmp->rx_cmp_misc_v1) & 976 RX_CMP_AGG_BUFS) >> 977 RX_CMP_AGG_BUFS_SHIFT; 978 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 979 struct rx_tpa_end_cmp *tpa_end = cmp; 980 981 agg_bufs = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) & 982 RX_TPA_END_CMP_AGG_BUFS) >> 983 RX_TPA_END_CMP_AGG_BUFS_SHIFT; 984 } 985 986 if (agg_bufs) { 987 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) 988 return -EBUSY; 989 } 990 *raw_cons = tmp_raw_cons; 991 return 0; 992 } 993 994 static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr) 995 { 996 if (!rxr->bnapi->in_reset) { 997 rxr->bnapi->in_reset = true; 998 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); 999 schedule_work(&bp->sp_task); 1000 } 1001 rxr->rx_next_cons = 0xffff; 1002 } 1003 1004 static void bnxt_tpa_start(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, 1005 struct rx_tpa_start_cmp *tpa_start, 1006 struct rx_tpa_start_cmp_ext *tpa_start1) 1007 { 1008 u8 agg_id = TPA_START_AGG_ID(tpa_start); 1009 u16 cons, prod; 1010 struct bnxt_tpa_info *tpa_info; 1011 struct bnxt_sw_rx_bd *cons_rx_buf, *prod_rx_buf; 1012 struct rx_bd *prod_bd; 1013 dma_addr_t mapping; 1014 1015 cons = tpa_start->rx_tpa_start_cmp_opaque; 1016 prod = rxr->rx_prod; 1017 cons_rx_buf = &rxr->rx_buf_ring[cons]; 1018 prod_rx_buf = &rxr->rx_buf_ring[prod]; 1019 tpa_info = &rxr->rx_tpa[agg_id]; 1020 1021 if (unlikely(cons != rxr->rx_next_cons)) { 1022 bnxt_sched_reset(bp, rxr); 1023 return; 1024 } 1025 1026 prod_rx_buf->data = tpa_info->data; 1027 prod_rx_buf->data_ptr = tpa_info->data_ptr; 1028 1029 mapping = tpa_info->mapping; 1030 prod_rx_buf->mapping = mapping; 1031 1032 prod_bd = &rxr->rx_desc_ring[RX_RING(prod)][RX_IDX(prod)]; 1033 1034 prod_bd->rx_bd_haddr = cpu_to_le64(mapping); 1035 1036 tpa_info->data = cons_rx_buf->data; 1037 tpa_info->data_ptr = cons_rx_buf->data_ptr; 1038 cons_rx_buf->data = NULL; 1039 tpa_info->mapping = cons_rx_buf->mapping; 1040 1041 tpa_info->len = 1042 le32_to_cpu(tpa_start->rx_tpa_start_cmp_len_flags_type) >> 1043 RX_TPA_START_CMP_LEN_SHIFT; 1044 if (likely(TPA_START_HASH_VALID(tpa_start))) { 1045 u32 hash_type = TPA_START_HASH_TYPE(tpa_start); 1046 1047 tpa_info->hash_type = PKT_HASH_TYPE_L4; 1048 tpa_info->gso_type = SKB_GSO_TCPV4; 1049 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */ 1050 if (hash_type == 3) 1051 tpa_info->gso_type = SKB_GSO_TCPV6; 1052 tpa_info->rss_hash = 1053 le32_to_cpu(tpa_start->rx_tpa_start_cmp_rss_hash); 1054 } else { 1055 tpa_info->hash_type = PKT_HASH_TYPE_NONE; 1056 tpa_info->gso_type = 0; 1057 if (netif_msg_rx_err(bp)) 1058 netdev_warn(bp->dev, "TPA packet without valid hash\n"); 1059 } 1060 tpa_info->flags2 = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_flags2); 1061 tpa_info->metadata = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_metadata); 1062 tpa_info->hdr_info = le32_to_cpu(tpa_start1->rx_tpa_start_cmp_hdr_info); 1063 1064 rxr->rx_prod = NEXT_RX(prod); 1065 cons = NEXT_RX(cons); 1066 rxr->rx_next_cons = NEXT_RX(cons); 1067 cons_rx_buf = &rxr->rx_buf_ring[cons]; 1068 1069 bnxt_reuse_rx_data(rxr, cons, cons_rx_buf->data); 1070 rxr->rx_prod = NEXT_RX(rxr->rx_prod); 1071 cons_rx_buf->data = NULL; 1072 } 1073 1074 static void bnxt_abort_tpa(struct bnxt *bp, struct bnxt_napi *bnapi, 1075 u16 cp_cons, u32 agg_bufs) 1076 { 1077 if (agg_bufs) 1078 bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs); 1079 } 1080 1081 static struct sk_buff *bnxt_gro_func_5731x(struct bnxt_tpa_info *tpa_info, 1082 int payload_off, int tcp_ts, 1083 struct sk_buff *skb) 1084 { 1085 #ifdef CONFIG_INET 1086 struct tcphdr *th; 1087 int len, nw_off; 1088 u16 outer_ip_off, inner_ip_off, inner_mac_off; 1089 u32 hdr_info = tpa_info->hdr_info; 1090 bool loopback = false; 1091 1092 inner_ip_off = BNXT_TPA_INNER_L3_OFF(hdr_info); 1093 inner_mac_off = BNXT_TPA_INNER_L2_OFF(hdr_info); 1094 outer_ip_off = BNXT_TPA_OUTER_L3_OFF(hdr_info); 1095 1096 /* If the packet is an internal loopback packet, the offsets will 1097 * have an extra 4 bytes. 1098 */ 1099 if (inner_mac_off == 4) { 1100 loopback = true; 1101 } else if (inner_mac_off > 4) { 1102 __be16 proto = *((__be16 *)(skb->data + inner_ip_off - 1103 ETH_HLEN - 2)); 1104 1105 /* We only support inner iPv4/ipv6. If we don't see the 1106 * correct protocol ID, it must be a loopback packet where 1107 * the offsets are off by 4. 1108 */ 1109 if (proto != htons(ETH_P_IP) && proto != htons(ETH_P_IPV6)) 1110 loopback = true; 1111 } 1112 if (loopback) { 1113 /* internal loopback packet, subtract all offsets by 4 */ 1114 inner_ip_off -= 4; 1115 inner_mac_off -= 4; 1116 outer_ip_off -= 4; 1117 } 1118 1119 nw_off = inner_ip_off - ETH_HLEN; 1120 skb_set_network_header(skb, nw_off); 1121 if (tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_IP_TYPE) { 1122 struct ipv6hdr *iph = ipv6_hdr(skb); 1123 1124 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); 1125 len = skb->len - skb_transport_offset(skb); 1126 th = tcp_hdr(skb); 1127 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); 1128 } else { 1129 struct iphdr *iph = ip_hdr(skb); 1130 1131 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); 1132 len = skb->len - skb_transport_offset(skb); 1133 th = tcp_hdr(skb); 1134 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); 1135 } 1136 1137 if (inner_mac_off) { /* tunnel */ 1138 struct udphdr *uh = NULL; 1139 __be16 proto = *((__be16 *)(skb->data + outer_ip_off - 1140 ETH_HLEN - 2)); 1141 1142 if (proto == htons(ETH_P_IP)) { 1143 struct iphdr *iph = (struct iphdr *)skb->data; 1144 1145 if (iph->protocol == IPPROTO_UDP) 1146 uh = (struct udphdr *)(iph + 1); 1147 } else { 1148 struct ipv6hdr *iph = (struct ipv6hdr *)skb->data; 1149 1150 if (iph->nexthdr == IPPROTO_UDP) 1151 uh = (struct udphdr *)(iph + 1); 1152 } 1153 if (uh) { 1154 if (uh->check) 1155 skb_shinfo(skb)->gso_type |= 1156 SKB_GSO_UDP_TUNNEL_CSUM; 1157 else 1158 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL; 1159 } 1160 } 1161 #endif 1162 return skb; 1163 } 1164 1165 #define BNXT_IPV4_HDR_SIZE (sizeof(struct iphdr) + sizeof(struct tcphdr)) 1166 #define BNXT_IPV6_HDR_SIZE (sizeof(struct ipv6hdr) + sizeof(struct tcphdr)) 1167 1168 static struct sk_buff *bnxt_gro_func_5730x(struct bnxt_tpa_info *tpa_info, 1169 int payload_off, int tcp_ts, 1170 struct sk_buff *skb) 1171 { 1172 #ifdef CONFIG_INET 1173 struct tcphdr *th; 1174 int len, nw_off, tcp_opt_len = 0; 1175 1176 if (tcp_ts) 1177 tcp_opt_len = 12; 1178 1179 if (tpa_info->gso_type == SKB_GSO_TCPV4) { 1180 struct iphdr *iph; 1181 1182 nw_off = payload_off - BNXT_IPV4_HDR_SIZE - tcp_opt_len - 1183 ETH_HLEN; 1184 skb_set_network_header(skb, nw_off); 1185 iph = ip_hdr(skb); 1186 skb_set_transport_header(skb, nw_off + sizeof(struct iphdr)); 1187 len = skb->len - skb_transport_offset(skb); 1188 th = tcp_hdr(skb); 1189 th->check = ~tcp_v4_check(len, iph->saddr, iph->daddr, 0); 1190 } else if (tpa_info->gso_type == SKB_GSO_TCPV6) { 1191 struct ipv6hdr *iph; 1192 1193 nw_off = payload_off - BNXT_IPV6_HDR_SIZE - tcp_opt_len - 1194 ETH_HLEN; 1195 skb_set_network_header(skb, nw_off); 1196 iph = ipv6_hdr(skb); 1197 skb_set_transport_header(skb, nw_off + sizeof(struct ipv6hdr)); 1198 len = skb->len - skb_transport_offset(skb); 1199 th = tcp_hdr(skb); 1200 th->check = ~tcp_v6_check(len, &iph->saddr, &iph->daddr, 0); 1201 } else { 1202 dev_kfree_skb_any(skb); 1203 return NULL; 1204 } 1205 1206 if (nw_off) { /* tunnel */ 1207 struct udphdr *uh = NULL; 1208 1209 if (skb->protocol == htons(ETH_P_IP)) { 1210 struct iphdr *iph = (struct iphdr *)skb->data; 1211 1212 if (iph->protocol == IPPROTO_UDP) 1213 uh = (struct udphdr *)(iph + 1); 1214 } else { 1215 struct ipv6hdr *iph = (struct ipv6hdr *)skb->data; 1216 1217 if (iph->nexthdr == IPPROTO_UDP) 1218 uh = (struct udphdr *)(iph + 1); 1219 } 1220 if (uh) { 1221 if (uh->check) 1222 skb_shinfo(skb)->gso_type |= 1223 SKB_GSO_UDP_TUNNEL_CSUM; 1224 else 1225 skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL; 1226 } 1227 } 1228 #endif 1229 return skb; 1230 } 1231 1232 static inline struct sk_buff *bnxt_gro_skb(struct bnxt *bp, 1233 struct bnxt_tpa_info *tpa_info, 1234 struct rx_tpa_end_cmp *tpa_end, 1235 struct rx_tpa_end_cmp_ext *tpa_end1, 1236 struct sk_buff *skb) 1237 { 1238 #ifdef CONFIG_INET 1239 int payload_off; 1240 u16 segs; 1241 1242 segs = TPA_END_TPA_SEGS(tpa_end); 1243 if (segs == 1) 1244 return skb; 1245 1246 NAPI_GRO_CB(skb)->count = segs; 1247 skb_shinfo(skb)->gso_size = 1248 le32_to_cpu(tpa_end1->rx_tpa_end_cmp_seg_len); 1249 skb_shinfo(skb)->gso_type = tpa_info->gso_type; 1250 payload_off = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) & 1251 RX_TPA_END_CMP_PAYLOAD_OFFSET) >> 1252 RX_TPA_END_CMP_PAYLOAD_OFFSET_SHIFT; 1253 skb = bp->gro_func(tpa_info, payload_off, TPA_END_GRO_TS(tpa_end), skb); 1254 if (likely(skb)) 1255 tcp_gro_complete(skb); 1256 #endif 1257 return skb; 1258 } 1259 1260 static inline struct sk_buff *bnxt_tpa_end(struct bnxt *bp, 1261 struct bnxt_napi *bnapi, 1262 u32 *raw_cons, 1263 struct rx_tpa_end_cmp *tpa_end, 1264 struct rx_tpa_end_cmp_ext *tpa_end1, 1265 u8 *event) 1266 { 1267 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 1268 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1269 u8 agg_id = TPA_END_AGG_ID(tpa_end); 1270 u8 *data_ptr, agg_bufs; 1271 u16 cp_cons = RING_CMP(*raw_cons); 1272 unsigned int len; 1273 struct bnxt_tpa_info *tpa_info; 1274 dma_addr_t mapping; 1275 struct sk_buff *skb; 1276 void *data; 1277 1278 if (unlikely(bnapi->in_reset)) { 1279 int rc = bnxt_discard_rx(bp, bnapi, raw_cons, tpa_end); 1280 1281 if (rc < 0) 1282 return ERR_PTR(-EBUSY); 1283 return NULL; 1284 } 1285 1286 tpa_info = &rxr->rx_tpa[agg_id]; 1287 data = tpa_info->data; 1288 data_ptr = tpa_info->data_ptr; 1289 prefetch(data_ptr); 1290 len = tpa_info->len; 1291 mapping = tpa_info->mapping; 1292 1293 agg_bufs = (le32_to_cpu(tpa_end->rx_tpa_end_cmp_misc_v1) & 1294 RX_TPA_END_CMP_AGG_BUFS) >> RX_TPA_END_CMP_AGG_BUFS_SHIFT; 1295 1296 if (agg_bufs) { 1297 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, raw_cons)) 1298 return ERR_PTR(-EBUSY); 1299 1300 *event |= BNXT_AGG_EVENT; 1301 cp_cons = NEXT_CMP(cp_cons); 1302 } 1303 1304 if (unlikely(agg_bufs > MAX_SKB_FRAGS)) { 1305 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs); 1306 netdev_warn(bp->dev, "TPA frags %d exceeded MAX_SKB_FRAGS %d\n", 1307 agg_bufs, (int)MAX_SKB_FRAGS); 1308 return NULL; 1309 } 1310 1311 if (len <= bp->rx_copy_thresh) { 1312 skb = bnxt_copy_skb(bnapi, data_ptr, len, mapping); 1313 if (!skb) { 1314 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs); 1315 return NULL; 1316 } 1317 } else { 1318 u8 *new_data; 1319 dma_addr_t new_mapping; 1320 1321 new_data = __bnxt_alloc_rx_data(bp, &new_mapping, GFP_ATOMIC); 1322 if (!new_data) { 1323 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs); 1324 return NULL; 1325 } 1326 1327 tpa_info->data = new_data; 1328 tpa_info->data_ptr = new_data + bp->rx_offset; 1329 tpa_info->mapping = new_mapping; 1330 1331 skb = build_skb(data, 0); 1332 dma_unmap_single(&bp->pdev->dev, mapping, bp->rx_buf_use_size, 1333 bp->rx_dir); 1334 1335 if (!skb) { 1336 kfree(data); 1337 bnxt_abort_tpa(bp, bnapi, cp_cons, agg_bufs); 1338 return NULL; 1339 } 1340 skb_reserve(skb, bp->rx_offset); 1341 skb_put(skb, len); 1342 } 1343 1344 if (agg_bufs) { 1345 skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs); 1346 if (!skb) { 1347 /* Page reuse already handled by bnxt_rx_pages(). */ 1348 return NULL; 1349 } 1350 } 1351 skb->protocol = eth_type_trans(skb, bp->dev); 1352 1353 if (tpa_info->hash_type != PKT_HASH_TYPE_NONE) 1354 skb_set_hash(skb, tpa_info->rss_hash, tpa_info->hash_type); 1355 1356 if ((tpa_info->flags2 & RX_CMP_FLAGS2_META_FORMAT_VLAN) && 1357 (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) { 1358 u16 vlan_proto = tpa_info->metadata >> 1359 RX_CMP_FLAGS2_METADATA_TPID_SFT; 1360 u16 vtag = tpa_info->metadata & RX_CMP_FLAGS2_METADATA_VID_MASK; 1361 1362 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag); 1363 } 1364 1365 skb_checksum_none_assert(skb); 1366 if (likely(tpa_info->flags2 & RX_TPA_START_CMP_FLAGS2_L4_CS_CALC)) { 1367 skb->ip_summed = CHECKSUM_UNNECESSARY; 1368 skb->csum_level = 1369 (tpa_info->flags2 & RX_CMP_FLAGS2_T_L4_CS_CALC) >> 3; 1370 } 1371 1372 if (TPA_END_GRO(tpa_end)) 1373 skb = bnxt_gro_skb(bp, tpa_info, tpa_end, tpa_end1, skb); 1374 1375 return skb; 1376 } 1377 1378 /* returns the following: 1379 * 1 - 1 packet successfully received 1380 * 0 - successful TPA_START, packet not completed yet 1381 * -EBUSY - completion ring does not have all the agg buffers yet 1382 * -ENOMEM - packet aborted due to out of memory 1383 * -EIO - packet aborted due to hw error indicated in BD 1384 */ 1385 static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons, 1386 u8 *event) 1387 { 1388 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 1389 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1390 struct net_device *dev = bp->dev; 1391 struct rx_cmp *rxcmp; 1392 struct rx_cmp_ext *rxcmp1; 1393 u32 tmp_raw_cons = *raw_cons; 1394 u16 cons, prod, cp_cons = RING_CMP(tmp_raw_cons); 1395 struct bnxt_sw_rx_bd *rx_buf; 1396 unsigned int len; 1397 u8 *data_ptr, agg_bufs, cmp_type; 1398 dma_addr_t dma_addr; 1399 struct sk_buff *skb; 1400 void *data; 1401 int rc = 0; 1402 u32 misc; 1403 1404 rxcmp = (struct rx_cmp *) 1405 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 1406 1407 tmp_raw_cons = NEXT_RAW_CMP(tmp_raw_cons); 1408 cp_cons = RING_CMP(tmp_raw_cons); 1409 rxcmp1 = (struct rx_cmp_ext *) 1410 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 1411 1412 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 1413 return -EBUSY; 1414 1415 cmp_type = RX_CMP_TYPE(rxcmp); 1416 1417 prod = rxr->rx_prod; 1418 1419 if (cmp_type == CMP_TYPE_RX_L2_TPA_START_CMP) { 1420 bnxt_tpa_start(bp, rxr, (struct rx_tpa_start_cmp *)rxcmp, 1421 (struct rx_tpa_start_cmp_ext *)rxcmp1); 1422 1423 *event |= BNXT_RX_EVENT; 1424 goto next_rx_no_prod; 1425 1426 } else if (cmp_type == CMP_TYPE_RX_L2_TPA_END_CMP) { 1427 skb = bnxt_tpa_end(bp, bnapi, &tmp_raw_cons, 1428 (struct rx_tpa_end_cmp *)rxcmp, 1429 (struct rx_tpa_end_cmp_ext *)rxcmp1, event); 1430 1431 if (unlikely(IS_ERR(skb))) 1432 return -EBUSY; 1433 1434 rc = -ENOMEM; 1435 if (likely(skb)) { 1436 skb_record_rx_queue(skb, bnapi->index); 1437 napi_gro_receive(&bnapi->napi, skb); 1438 rc = 1; 1439 } 1440 *event |= BNXT_RX_EVENT; 1441 goto next_rx_no_prod; 1442 } 1443 1444 cons = rxcmp->rx_cmp_opaque; 1445 rx_buf = &rxr->rx_buf_ring[cons]; 1446 data = rx_buf->data; 1447 data_ptr = rx_buf->data_ptr; 1448 if (unlikely(cons != rxr->rx_next_cons)) { 1449 int rc1 = bnxt_discard_rx(bp, bnapi, raw_cons, rxcmp); 1450 1451 bnxt_sched_reset(bp, rxr); 1452 return rc1; 1453 } 1454 prefetch(data_ptr); 1455 1456 misc = le32_to_cpu(rxcmp->rx_cmp_misc_v1); 1457 agg_bufs = (misc & RX_CMP_AGG_BUFS) >> RX_CMP_AGG_BUFS_SHIFT; 1458 1459 if (agg_bufs) { 1460 if (!bnxt_agg_bufs_valid(bp, cpr, agg_bufs, &tmp_raw_cons)) 1461 return -EBUSY; 1462 1463 cp_cons = NEXT_CMP(cp_cons); 1464 *event |= BNXT_AGG_EVENT; 1465 } 1466 *event |= BNXT_RX_EVENT; 1467 1468 rx_buf->data = NULL; 1469 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) { 1470 bnxt_reuse_rx_data(rxr, cons, data); 1471 if (agg_bufs) 1472 bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs); 1473 1474 rc = -EIO; 1475 goto next_rx; 1476 } 1477 1478 len = le32_to_cpu(rxcmp->rx_cmp_len_flags_type) >> RX_CMP_LEN_SHIFT; 1479 dma_addr = rx_buf->mapping; 1480 1481 if (bnxt_rx_xdp(bp, rxr, cons, data, &data_ptr, &len, event)) { 1482 rc = 1; 1483 goto next_rx; 1484 } 1485 1486 if (len <= bp->rx_copy_thresh) { 1487 skb = bnxt_copy_skb(bnapi, data_ptr, len, dma_addr); 1488 bnxt_reuse_rx_data(rxr, cons, data); 1489 if (!skb) { 1490 rc = -ENOMEM; 1491 goto next_rx; 1492 } 1493 } else { 1494 u32 payload; 1495 1496 if (rx_buf->data_ptr == data_ptr) 1497 payload = misc & RX_CMP_PAYLOAD_OFFSET; 1498 else 1499 payload = 0; 1500 skb = bp->rx_skb_func(bp, rxr, cons, data, data_ptr, dma_addr, 1501 payload | len); 1502 if (!skb) { 1503 rc = -ENOMEM; 1504 goto next_rx; 1505 } 1506 } 1507 1508 if (agg_bufs) { 1509 skb = bnxt_rx_pages(bp, bnapi, skb, cp_cons, agg_bufs); 1510 if (!skb) { 1511 rc = -ENOMEM; 1512 goto next_rx; 1513 } 1514 } 1515 1516 if (RX_CMP_HASH_VALID(rxcmp)) { 1517 u32 hash_type = RX_CMP_HASH_TYPE(rxcmp); 1518 enum pkt_hash_types type = PKT_HASH_TYPE_L4; 1519 1520 /* RSS profiles 1 and 3 with extract code 0 for inner 4-tuple */ 1521 if (hash_type != 1 && hash_type != 3) 1522 type = PKT_HASH_TYPE_L3; 1523 skb_set_hash(skb, le32_to_cpu(rxcmp->rx_cmp_rss_hash), type); 1524 } 1525 1526 skb->protocol = eth_type_trans(skb, dev); 1527 1528 if ((rxcmp1->rx_cmp_flags2 & 1529 cpu_to_le32(RX_CMP_FLAGS2_META_FORMAT_VLAN)) && 1530 (skb->dev->features & NETIF_F_HW_VLAN_CTAG_RX)) { 1531 u32 meta_data = le32_to_cpu(rxcmp1->rx_cmp_meta_data); 1532 u16 vtag = meta_data & RX_CMP_FLAGS2_METADATA_VID_MASK; 1533 u16 vlan_proto = meta_data >> RX_CMP_FLAGS2_METADATA_TPID_SFT; 1534 1535 __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vtag); 1536 } 1537 1538 skb_checksum_none_assert(skb); 1539 if (RX_CMP_L4_CS_OK(rxcmp1)) { 1540 if (dev->features & NETIF_F_RXCSUM) { 1541 skb->ip_summed = CHECKSUM_UNNECESSARY; 1542 skb->csum_level = RX_CMP_ENCAP(rxcmp1); 1543 } 1544 } else { 1545 if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L4_CS_ERR_BITS) { 1546 if (dev->features & NETIF_F_RXCSUM) 1547 cpr->rx_l4_csum_errors++; 1548 } 1549 } 1550 1551 skb_record_rx_queue(skb, bnapi->index); 1552 napi_gro_receive(&bnapi->napi, skb); 1553 rc = 1; 1554 1555 next_rx: 1556 rxr->rx_prod = NEXT_RX(prod); 1557 rxr->rx_next_cons = NEXT_RX(cons); 1558 1559 next_rx_no_prod: 1560 *raw_cons = tmp_raw_cons; 1561 1562 return rc; 1563 } 1564 1565 #define BNXT_GET_EVENT_PORT(data) \ 1566 ((data) & \ 1567 ASYNC_EVENT_CMPL_PORT_CONN_NOT_ALLOWED_EVENT_DATA1_PORT_ID_MASK) 1568 1569 static int bnxt_async_event_process(struct bnxt *bp, 1570 struct hwrm_async_event_cmpl *cmpl) 1571 { 1572 u16 event_id = le16_to_cpu(cmpl->event_id); 1573 1574 /* TODO CHIMP_FW: Define event id's for link change, error etc */ 1575 switch (event_id) { 1576 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE: { 1577 u32 data1 = le32_to_cpu(cmpl->event_data1); 1578 struct bnxt_link_info *link_info = &bp->link_info; 1579 1580 if (BNXT_VF(bp)) 1581 goto async_event_process_exit; 1582 if (data1 & 0x20000) { 1583 u16 fw_speed = link_info->force_link_speed; 1584 u32 speed = bnxt_fw_to_ethtool_speed(fw_speed); 1585 1586 netdev_warn(bp->dev, "Link speed %d no longer supported\n", 1587 speed); 1588 } 1589 set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event); 1590 /* fall thru */ 1591 } 1592 case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE: 1593 set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event); 1594 break; 1595 case ASYNC_EVENT_CMPL_EVENT_ID_PF_DRVR_UNLOAD: 1596 set_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event); 1597 break; 1598 case ASYNC_EVENT_CMPL_EVENT_ID_PORT_CONN_NOT_ALLOWED: { 1599 u32 data1 = le32_to_cpu(cmpl->event_data1); 1600 u16 port_id = BNXT_GET_EVENT_PORT(data1); 1601 1602 if (BNXT_VF(bp)) 1603 break; 1604 1605 if (bp->pf.port_id != port_id) 1606 break; 1607 1608 set_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event); 1609 break; 1610 } 1611 case ASYNC_EVENT_CMPL_EVENT_ID_VF_CFG_CHANGE: 1612 if (BNXT_PF(bp)) 1613 goto async_event_process_exit; 1614 set_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event); 1615 break; 1616 default: 1617 goto async_event_process_exit; 1618 } 1619 schedule_work(&bp->sp_task); 1620 async_event_process_exit: 1621 bnxt_ulp_async_events(bp, cmpl); 1622 return 0; 1623 } 1624 1625 static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp) 1626 { 1627 u16 cmpl_type = TX_CMP_TYPE(txcmp), vf_id, seq_id; 1628 struct hwrm_cmpl *h_cmpl = (struct hwrm_cmpl *)txcmp; 1629 struct hwrm_fwd_req_cmpl *fwd_req_cmpl = 1630 (struct hwrm_fwd_req_cmpl *)txcmp; 1631 1632 switch (cmpl_type) { 1633 case CMPL_BASE_TYPE_HWRM_DONE: 1634 seq_id = le16_to_cpu(h_cmpl->sequence_id); 1635 if (seq_id == bp->hwrm_intr_seq_id) 1636 bp->hwrm_intr_seq_id = HWRM_SEQ_ID_INVALID; 1637 else 1638 netdev_err(bp->dev, "Invalid hwrm seq id %d\n", seq_id); 1639 break; 1640 1641 case CMPL_BASE_TYPE_HWRM_FWD_REQ: 1642 vf_id = le16_to_cpu(fwd_req_cmpl->source_id); 1643 1644 if ((vf_id < bp->pf.first_vf_id) || 1645 (vf_id >= bp->pf.first_vf_id + bp->pf.active_vfs)) { 1646 netdev_err(bp->dev, "Msg contains invalid VF id %x\n", 1647 vf_id); 1648 return -EINVAL; 1649 } 1650 1651 set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap); 1652 set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event); 1653 schedule_work(&bp->sp_task); 1654 break; 1655 1656 case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT: 1657 bnxt_async_event_process(bp, 1658 (struct hwrm_async_event_cmpl *)txcmp); 1659 1660 default: 1661 break; 1662 } 1663 1664 return 0; 1665 } 1666 1667 static irqreturn_t bnxt_msix(int irq, void *dev_instance) 1668 { 1669 struct bnxt_napi *bnapi = dev_instance; 1670 struct bnxt *bp = bnapi->bp; 1671 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 1672 u32 cons = RING_CMP(cpr->cp_raw_cons); 1673 1674 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]); 1675 napi_schedule(&bnapi->napi); 1676 return IRQ_HANDLED; 1677 } 1678 1679 static inline int bnxt_has_work(struct bnxt *bp, struct bnxt_cp_ring_info *cpr) 1680 { 1681 u32 raw_cons = cpr->cp_raw_cons; 1682 u16 cons = RING_CMP(raw_cons); 1683 struct tx_cmp *txcmp; 1684 1685 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 1686 1687 return TX_CMP_VALID(txcmp, raw_cons); 1688 } 1689 1690 static irqreturn_t bnxt_inta(int irq, void *dev_instance) 1691 { 1692 struct bnxt_napi *bnapi = dev_instance; 1693 struct bnxt *bp = bnapi->bp; 1694 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 1695 u32 cons = RING_CMP(cpr->cp_raw_cons); 1696 u32 int_status; 1697 1698 prefetch(&cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]); 1699 1700 if (!bnxt_has_work(bp, cpr)) { 1701 int_status = readl(bp->bar0 + BNXT_CAG_REG_LEGACY_INT_STATUS); 1702 /* return if erroneous interrupt */ 1703 if (!(int_status & (0x10000 << cpr->cp_ring_struct.fw_ring_id))) 1704 return IRQ_NONE; 1705 } 1706 1707 /* disable ring IRQ */ 1708 BNXT_CP_DB_IRQ_DIS(cpr->cp_doorbell); 1709 1710 /* Return here if interrupt is shared and is disabled. */ 1711 if (unlikely(atomic_read(&bp->intr_sem) != 0)) 1712 return IRQ_HANDLED; 1713 1714 napi_schedule(&bnapi->napi); 1715 return IRQ_HANDLED; 1716 } 1717 1718 static int bnxt_poll_work(struct bnxt *bp, struct bnxt_napi *bnapi, int budget) 1719 { 1720 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 1721 u32 raw_cons = cpr->cp_raw_cons; 1722 u32 cons; 1723 int tx_pkts = 0; 1724 int rx_pkts = 0; 1725 u8 event = 0; 1726 struct tx_cmp *txcmp; 1727 1728 while (1) { 1729 int rc; 1730 1731 cons = RING_CMP(raw_cons); 1732 txcmp = &cpr->cp_desc_ring[CP_RING(cons)][CP_IDX(cons)]; 1733 1734 if (!TX_CMP_VALID(txcmp, raw_cons)) 1735 break; 1736 1737 /* The valid test of the entry must be done first before 1738 * reading any further. 1739 */ 1740 dma_rmb(); 1741 if (TX_CMP_TYPE(txcmp) == CMP_TYPE_TX_L2_CMP) { 1742 tx_pkts++; 1743 /* return full budget so NAPI will complete. */ 1744 if (unlikely(tx_pkts > bp->tx_wake_thresh)) 1745 rx_pkts = budget; 1746 } else if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { 1747 rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &event); 1748 if (likely(rc >= 0)) 1749 rx_pkts += rc; 1750 else if (rc == -EBUSY) /* partial completion */ 1751 break; 1752 } else if (unlikely((TX_CMP_TYPE(txcmp) == 1753 CMPL_BASE_TYPE_HWRM_DONE) || 1754 (TX_CMP_TYPE(txcmp) == 1755 CMPL_BASE_TYPE_HWRM_FWD_REQ) || 1756 (TX_CMP_TYPE(txcmp) == 1757 CMPL_BASE_TYPE_HWRM_ASYNC_EVENT))) { 1758 bnxt_hwrm_handler(bp, txcmp); 1759 } 1760 raw_cons = NEXT_RAW_CMP(raw_cons); 1761 1762 if (rx_pkts == budget) 1763 break; 1764 } 1765 1766 if (event & BNXT_TX_EVENT) { 1767 struct bnxt_tx_ring_info *txr = bnapi->tx_ring; 1768 void __iomem *db = txr->tx_doorbell; 1769 u16 prod = txr->tx_prod; 1770 1771 /* Sync BD data before updating doorbell */ 1772 wmb(); 1773 1774 writel(DB_KEY_TX | prod, db); 1775 writel(DB_KEY_TX | prod, db); 1776 } 1777 1778 cpr->cp_raw_cons = raw_cons; 1779 /* ACK completion ring before freeing tx ring and producing new 1780 * buffers in rx/agg rings to prevent overflowing the completion 1781 * ring. 1782 */ 1783 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons); 1784 1785 if (tx_pkts) 1786 bnapi->tx_int(bp, bnapi, tx_pkts); 1787 1788 if (event & BNXT_RX_EVENT) { 1789 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1790 1791 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell); 1792 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell); 1793 if (event & BNXT_AGG_EVENT) { 1794 writel(DB_KEY_RX | rxr->rx_agg_prod, 1795 rxr->rx_agg_doorbell); 1796 writel(DB_KEY_RX | rxr->rx_agg_prod, 1797 rxr->rx_agg_doorbell); 1798 } 1799 } 1800 return rx_pkts; 1801 } 1802 1803 static int bnxt_poll_nitroa0(struct napi_struct *napi, int budget) 1804 { 1805 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 1806 struct bnxt *bp = bnapi->bp; 1807 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 1808 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 1809 struct tx_cmp *txcmp; 1810 struct rx_cmp_ext *rxcmp1; 1811 u32 cp_cons, tmp_raw_cons; 1812 u32 raw_cons = cpr->cp_raw_cons; 1813 u32 rx_pkts = 0; 1814 u8 event = 0; 1815 1816 while (1) { 1817 int rc; 1818 1819 cp_cons = RING_CMP(raw_cons); 1820 txcmp = &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 1821 1822 if (!TX_CMP_VALID(txcmp, raw_cons)) 1823 break; 1824 1825 if ((TX_CMP_TYPE(txcmp) & 0x30) == 0x10) { 1826 tmp_raw_cons = NEXT_RAW_CMP(raw_cons); 1827 cp_cons = RING_CMP(tmp_raw_cons); 1828 rxcmp1 = (struct rx_cmp_ext *) 1829 &cpr->cp_desc_ring[CP_RING(cp_cons)][CP_IDX(cp_cons)]; 1830 1831 if (!RX_CMP_VALID(rxcmp1, tmp_raw_cons)) 1832 break; 1833 1834 /* force an error to recycle the buffer */ 1835 rxcmp1->rx_cmp_cfa_code_errors_v2 |= 1836 cpu_to_le32(RX_CMPL_ERRORS_CRC_ERROR); 1837 1838 rc = bnxt_rx_pkt(bp, bnapi, &raw_cons, &event); 1839 if (likely(rc == -EIO)) 1840 rx_pkts++; 1841 else if (rc == -EBUSY) /* partial completion */ 1842 break; 1843 } else if (unlikely(TX_CMP_TYPE(txcmp) == 1844 CMPL_BASE_TYPE_HWRM_DONE)) { 1845 bnxt_hwrm_handler(bp, txcmp); 1846 } else { 1847 netdev_err(bp->dev, 1848 "Invalid completion received on special ring\n"); 1849 } 1850 raw_cons = NEXT_RAW_CMP(raw_cons); 1851 1852 if (rx_pkts == budget) 1853 break; 1854 } 1855 1856 cpr->cp_raw_cons = raw_cons; 1857 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons); 1858 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell); 1859 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell); 1860 1861 if (event & BNXT_AGG_EVENT) { 1862 writel(DB_KEY_RX | rxr->rx_agg_prod, rxr->rx_agg_doorbell); 1863 writel(DB_KEY_RX | rxr->rx_agg_prod, rxr->rx_agg_doorbell); 1864 } 1865 1866 if (!bnxt_has_work(bp, cpr) && rx_pkts < budget) { 1867 napi_complete_done(napi, rx_pkts); 1868 BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons); 1869 } 1870 return rx_pkts; 1871 } 1872 1873 static int bnxt_poll(struct napi_struct *napi, int budget) 1874 { 1875 struct bnxt_napi *bnapi = container_of(napi, struct bnxt_napi, napi); 1876 struct bnxt *bp = bnapi->bp; 1877 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 1878 int work_done = 0; 1879 1880 while (1) { 1881 work_done += bnxt_poll_work(bp, bnapi, budget - work_done); 1882 1883 if (work_done >= budget) 1884 break; 1885 1886 if (!bnxt_has_work(bp, cpr)) { 1887 if (napi_complete_done(napi, work_done)) 1888 BNXT_CP_DB_REARM(cpr->cp_doorbell, 1889 cpr->cp_raw_cons); 1890 break; 1891 } 1892 } 1893 mmiowb(); 1894 return work_done; 1895 } 1896 1897 static void bnxt_free_tx_skbs(struct bnxt *bp) 1898 { 1899 int i, max_idx; 1900 struct pci_dev *pdev = bp->pdev; 1901 1902 if (!bp->tx_ring) 1903 return; 1904 1905 max_idx = bp->tx_nr_pages * TX_DESC_CNT; 1906 for (i = 0; i < bp->tx_nr_rings; i++) { 1907 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 1908 int j; 1909 1910 for (j = 0; j < max_idx;) { 1911 struct bnxt_sw_tx_bd *tx_buf = &txr->tx_buf_ring[j]; 1912 struct sk_buff *skb = tx_buf->skb; 1913 int k, last; 1914 1915 if (!skb) { 1916 j++; 1917 continue; 1918 } 1919 1920 tx_buf->skb = NULL; 1921 1922 if (tx_buf->is_push) { 1923 dev_kfree_skb(skb); 1924 j += 2; 1925 continue; 1926 } 1927 1928 dma_unmap_single(&pdev->dev, 1929 dma_unmap_addr(tx_buf, mapping), 1930 skb_headlen(skb), 1931 PCI_DMA_TODEVICE); 1932 1933 last = tx_buf->nr_frags; 1934 j += 2; 1935 for (k = 0; k < last; k++, j++) { 1936 int ring_idx = j & bp->tx_ring_mask; 1937 skb_frag_t *frag = &skb_shinfo(skb)->frags[k]; 1938 1939 tx_buf = &txr->tx_buf_ring[ring_idx]; 1940 dma_unmap_page( 1941 &pdev->dev, 1942 dma_unmap_addr(tx_buf, mapping), 1943 skb_frag_size(frag), PCI_DMA_TODEVICE); 1944 } 1945 dev_kfree_skb(skb); 1946 } 1947 netdev_tx_reset_queue(netdev_get_tx_queue(bp->dev, i)); 1948 } 1949 } 1950 1951 static void bnxt_free_rx_skbs(struct bnxt *bp) 1952 { 1953 int i, max_idx, max_agg_idx; 1954 struct pci_dev *pdev = bp->pdev; 1955 1956 if (!bp->rx_ring) 1957 return; 1958 1959 max_idx = bp->rx_nr_pages * RX_DESC_CNT; 1960 max_agg_idx = bp->rx_agg_nr_pages * RX_DESC_CNT; 1961 for (i = 0; i < bp->rx_nr_rings; i++) { 1962 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 1963 int j; 1964 1965 if (rxr->rx_tpa) { 1966 for (j = 0; j < MAX_TPA; j++) { 1967 struct bnxt_tpa_info *tpa_info = 1968 &rxr->rx_tpa[j]; 1969 u8 *data = tpa_info->data; 1970 1971 if (!data) 1972 continue; 1973 1974 dma_unmap_single(&pdev->dev, tpa_info->mapping, 1975 bp->rx_buf_use_size, 1976 bp->rx_dir); 1977 1978 tpa_info->data = NULL; 1979 1980 kfree(data); 1981 } 1982 } 1983 1984 for (j = 0; j < max_idx; j++) { 1985 struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[j]; 1986 dma_addr_t mapping = rx_buf->mapping; 1987 void *data = rx_buf->data; 1988 1989 if (!data) 1990 continue; 1991 1992 rx_buf->data = NULL; 1993 1994 if (BNXT_RX_PAGE_MODE(bp)) { 1995 mapping -= bp->rx_dma_offset; 1996 dma_unmap_page(&pdev->dev, mapping, 1997 PAGE_SIZE, bp->rx_dir); 1998 __free_page(data); 1999 } else { 2000 dma_unmap_single(&pdev->dev, mapping, 2001 bp->rx_buf_use_size, 2002 bp->rx_dir); 2003 kfree(data); 2004 } 2005 } 2006 2007 for (j = 0; j < max_agg_idx; j++) { 2008 struct bnxt_sw_rx_agg_bd *rx_agg_buf = 2009 &rxr->rx_agg_ring[j]; 2010 struct page *page = rx_agg_buf->page; 2011 2012 if (!page) 2013 continue; 2014 2015 dma_unmap_page(&pdev->dev, rx_agg_buf->mapping, 2016 BNXT_RX_PAGE_SIZE, PCI_DMA_FROMDEVICE); 2017 2018 rx_agg_buf->page = NULL; 2019 __clear_bit(j, rxr->rx_agg_bmap); 2020 2021 __free_page(page); 2022 } 2023 if (rxr->rx_page) { 2024 __free_page(rxr->rx_page); 2025 rxr->rx_page = NULL; 2026 } 2027 } 2028 } 2029 2030 static void bnxt_free_skbs(struct bnxt *bp) 2031 { 2032 bnxt_free_tx_skbs(bp); 2033 bnxt_free_rx_skbs(bp); 2034 } 2035 2036 static void bnxt_free_ring(struct bnxt *bp, struct bnxt_ring_struct *ring) 2037 { 2038 struct pci_dev *pdev = bp->pdev; 2039 int i; 2040 2041 for (i = 0; i < ring->nr_pages; i++) { 2042 if (!ring->pg_arr[i]) 2043 continue; 2044 2045 dma_free_coherent(&pdev->dev, ring->page_size, 2046 ring->pg_arr[i], ring->dma_arr[i]); 2047 2048 ring->pg_arr[i] = NULL; 2049 } 2050 if (ring->pg_tbl) { 2051 dma_free_coherent(&pdev->dev, ring->nr_pages * 8, 2052 ring->pg_tbl, ring->pg_tbl_map); 2053 ring->pg_tbl = NULL; 2054 } 2055 if (ring->vmem_size && *ring->vmem) { 2056 vfree(*ring->vmem); 2057 *ring->vmem = NULL; 2058 } 2059 } 2060 2061 static int bnxt_alloc_ring(struct bnxt *bp, struct bnxt_ring_struct *ring) 2062 { 2063 int i; 2064 struct pci_dev *pdev = bp->pdev; 2065 2066 if (ring->nr_pages > 1) { 2067 ring->pg_tbl = dma_alloc_coherent(&pdev->dev, 2068 ring->nr_pages * 8, 2069 &ring->pg_tbl_map, 2070 GFP_KERNEL); 2071 if (!ring->pg_tbl) 2072 return -ENOMEM; 2073 } 2074 2075 for (i = 0; i < ring->nr_pages; i++) { 2076 ring->pg_arr[i] = dma_alloc_coherent(&pdev->dev, 2077 ring->page_size, 2078 &ring->dma_arr[i], 2079 GFP_KERNEL); 2080 if (!ring->pg_arr[i]) 2081 return -ENOMEM; 2082 2083 if (ring->nr_pages > 1) 2084 ring->pg_tbl[i] = cpu_to_le64(ring->dma_arr[i]); 2085 } 2086 2087 if (ring->vmem_size) { 2088 *ring->vmem = vzalloc(ring->vmem_size); 2089 if (!(*ring->vmem)) 2090 return -ENOMEM; 2091 } 2092 return 0; 2093 } 2094 2095 static void bnxt_free_rx_rings(struct bnxt *bp) 2096 { 2097 int i; 2098 2099 if (!bp->rx_ring) 2100 return; 2101 2102 for (i = 0; i < bp->rx_nr_rings; i++) { 2103 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 2104 struct bnxt_ring_struct *ring; 2105 2106 if (rxr->xdp_prog) 2107 bpf_prog_put(rxr->xdp_prog); 2108 2109 kfree(rxr->rx_tpa); 2110 rxr->rx_tpa = NULL; 2111 2112 kfree(rxr->rx_agg_bmap); 2113 rxr->rx_agg_bmap = NULL; 2114 2115 ring = &rxr->rx_ring_struct; 2116 bnxt_free_ring(bp, ring); 2117 2118 ring = &rxr->rx_agg_ring_struct; 2119 bnxt_free_ring(bp, ring); 2120 } 2121 } 2122 2123 static int bnxt_alloc_rx_rings(struct bnxt *bp) 2124 { 2125 int i, rc, agg_rings = 0, tpa_rings = 0; 2126 2127 if (!bp->rx_ring) 2128 return -ENOMEM; 2129 2130 if (bp->flags & BNXT_FLAG_AGG_RINGS) 2131 agg_rings = 1; 2132 2133 if (bp->flags & BNXT_FLAG_TPA) 2134 tpa_rings = 1; 2135 2136 for (i = 0; i < bp->rx_nr_rings; i++) { 2137 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 2138 struct bnxt_ring_struct *ring; 2139 2140 ring = &rxr->rx_ring_struct; 2141 2142 rc = bnxt_alloc_ring(bp, ring); 2143 if (rc) 2144 return rc; 2145 2146 if (agg_rings) { 2147 u16 mem_size; 2148 2149 ring = &rxr->rx_agg_ring_struct; 2150 rc = bnxt_alloc_ring(bp, ring); 2151 if (rc) 2152 return rc; 2153 2154 rxr->rx_agg_bmap_size = bp->rx_agg_ring_mask + 1; 2155 mem_size = rxr->rx_agg_bmap_size / 8; 2156 rxr->rx_agg_bmap = kzalloc(mem_size, GFP_KERNEL); 2157 if (!rxr->rx_agg_bmap) 2158 return -ENOMEM; 2159 2160 if (tpa_rings) { 2161 rxr->rx_tpa = kcalloc(MAX_TPA, 2162 sizeof(struct bnxt_tpa_info), 2163 GFP_KERNEL); 2164 if (!rxr->rx_tpa) 2165 return -ENOMEM; 2166 } 2167 } 2168 } 2169 return 0; 2170 } 2171 2172 static void bnxt_free_tx_rings(struct bnxt *bp) 2173 { 2174 int i; 2175 struct pci_dev *pdev = bp->pdev; 2176 2177 if (!bp->tx_ring) 2178 return; 2179 2180 for (i = 0; i < bp->tx_nr_rings; i++) { 2181 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 2182 struct bnxt_ring_struct *ring; 2183 2184 if (txr->tx_push) { 2185 dma_free_coherent(&pdev->dev, bp->tx_push_size, 2186 txr->tx_push, txr->tx_push_mapping); 2187 txr->tx_push = NULL; 2188 } 2189 2190 ring = &txr->tx_ring_struct; 2191 2192 bnxt_free_ring(bp, ring); 2193 } 2194 } 2195 2196 static int bnxt_alloc_tx_rings(struct bnxt *bp) 2197 { 2198 int i, j, rc; 2199 struct pci_dev *pdev = bp->pdev; 2200 2201 bp->tx_push_size = 0; 2202 if (bp->tx_push_thresh) { 2203 int push_size; 2204 2205 push_size = L1_CACHE_ALIGN(sizeof(struct tx_push_bd) + 2206 bp->tx_push_thresh); 2207 2208 if (push_size > 256) { 2209 push_size = 0; 2210 bp->tx_push_thresh = 0; 2211 } 2212 2213 bp->tx_push_size = push_size; 2214 } 2215 2216 for (i = 0, j = 0; i < bp->tx_nr_rings; i++) { 2217 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 2218 struct bnxt_ring_struct *ring; 2219 2220 ring = &txr->tx_ring_struct; 2221 2222 rc = bnxt_alloc_ring(bp, ring); 2223 if (rc) 2224 return rc; 2225 2226 if (bp->tx_push_size) { 2227 dma_addr_t mapping; 2228 2229 /* One pre-allocated DMA buffer to backup 2230 * TX push operation 2231 */ 2232 txr->tx_push = dma_alloc_coherent(&pdev->dev, 2233 bp->tx_push_size, 2234 &txr->tx_push_mapping, 2235 GFP_KERNEL); 2236 2237 if (!txr->tx_push) 2238 return -ENOMEM; 2239 2240 mapping = txr->tx_push_mapping + 2241 sizeof(struct tx_push_bd); 2242 txr->data_mapping = cpu_to_le64(mapping); 2243 2244 memset(txr->tx_push, 0, sizeof(struct tx_push_bd)); 2245 } 2246 ring->queue_id = bp->q_info[j].queue_id; 2247 if (i < bp->tx_nr_rings_xdp) 2248 continue; 2249 if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1)) 2250 j++; 2251 } 2252 return 0; 2253 } 2254 2255 static void bnxt_free_cp_rings(struct bnxt *bp) 2256 { 2257 int i; 2258 2259 if (!bp->bnapi) 2260 return; 2261 2262 for (i = 0; i < bp->cp_nr_rings; i++) { 2263 struct bnxt_napi *bnapi = bp->bnapi[i]; 2264 struct bnxt_cp_ring_info *cpr; 2265 struct bnxt_ring_struct *ring; 2266 2267 if (!bnapi) 2268 continue; 2269 2270 cpr = &bnapi->cp_ring; 2271 ring = &cpr->cp_ring_struct; 2272 2273 bnxt_free_ring(bp, ring); 2274 } 2275 } 2276 2277 static int bnxt_alloc_cp_rings(struct bnxt *bp) 2278 { 2279 int i, rc; 2280 2281 for (i = 0; i < bp->cp_nr_rings; i++) { 2282 struct bnxt_napi *bnapi = bp->bnapi[i]; 2283 struct bnxt_cp_ring_info *cpr; 2284 struct bnxt_ring_struct *ring; 2285 2286 if (!bnapi) 2287 continue; 2288 2289 cpr = &bnapi->cp_ring; 2290 ring = &cpr->cp_ring_struct; 2291 2292 rc = bnxt_alloc_ring(bp, ring); 2293 if (rc) 2294 return rc; 2295 } 2296 return 0; 2297 } 2298 2299 static void bnxt_init_ring_struct(struct bnxt *bp) 2300 { 2301 int i; 2302 2303 for (i = 0; i < bp->cp_nr_rings; i++) { 2304 struct bnxt_napi *bnapi = bp->bnapi[i]; 2305 struct bnxt_cp_ring_info *cpr; 2306 struct bnxt_rx_ring_info *rxr; 2307 struct bnxt_tx_ring_info *txr; 2308 struct bnxt_ring_struct *ring; 2309 2310 if (!bnapi) 2311 continue; 2312 2313 cpr = &bnapi->cp_ring; 2314 ring = &cpr->cp_ring_struct; 2315 ring->nr_pages = bp->cp_nr_pages; 2316 ring->page_size = HW_CMPD_RING_SIZE; 2317 ring->pg_arr = (void **)cpr->cp_desc_ring; 2318 ring->dma_arr = cpr->cp_desc_mapping; 2319 ring->vmem_size = 0; 2320 2321 rxr = bnapi->rx_ring; 2322 if (!rxr) 2323 goto skip_rx; 2324 2325 ring = &rxr->rx_ring_struct; 2326 ring->nr_pages = bp->rx_nr_pages; 2327 ring->page_size = HW_RXBD_RING_SIZE; 2328 ring->pg_arr = (void **)rxr->rx_desc_ring; 2329 ring->dma_arr = rxr->rx_desc_mapping; 2330 ring->vmem_size = SW_RXBD_RING_SIZE * bp->rx_nr_pages; 2331 ring->vmem = (void **)&rxr->rx_buf_ring; 2332 2333 ring = &rxr->rx_agg_ring_struct; 2334 ring->nr_pages = bp->rx_agg_nr_pages; 2335 ring->page_size = HW_RXBD_RING_SIZE; 2336 ring->pg_arr = (void **)rxr->rx_agg_desc_ring; 2337 ring->dma_arr = rxr->rx_agg_desc_mapping; 2338 ring->vmem_size = SW_RXBD_AGG_RING_SIZE * bp->rx_agg_nr_pages; 2339 ring->vmem = (void **)&rxr->rx_agg_ring; 2340 2341 skip_rx: 2342 txr = bnapi->tx_ring; 2343 if (!txr) 2344 continue; 2345 2346 ring = &txr->tx_ring_struct; 2347 ring->nr_pages = bp->tx_nr_pages; 2348 ring->page_size = HW_RXBD_RING_SIZE; 2349 ring->pg_arr = (void **)txr->tx_desc_ring; 2350 ring->dma_arr = txr->tx_desc_mapping; 2351 ring->vmem_size = SW_TXBD_RING_SIZE * bp->tx_nr_pages; 2352 ring->vmem = (void **)&txr->tx_buf_ring; 2353 } 2354 } 2355 2356 static void bnxt_init_rxbd_pages(struct bnxt_ring_struct *ring, u32 type) 2357 { 2358 int i; 2359 u32 prod; 2360 struct rx_bd **rx_buf_ring; 2361 2362 rx_buf_ring = (struct rx_bd **)ring->pg_arr; 2363 for (i = 0, prod = 0; i < ring->nr_pages; i++) { 2364 int j; 2365 struct rx_bd *rxbd; 2366 2367 rxbd = rx_buf_ring[i]; 2368 if (!rxbd) 2369 continue; 2370 2371 for (j = 0; j < RX_DESC_CNT; j++, rxbd++, prod++) { 2372 rxbd->rx_bd_len_flags_type = cpu_to_le32(type); 2373 rxbd->rx_bd_opaque = prod; 2374 } 2375 } 2376 } 2377 2378 static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr) 2379 { 2380 struct net_device *dev = bp->dev; 2381 struct bnxt_rx_ring_info *rxr; 2382 struct bnxt_ring_struct *ring; 2383 u32 prod, type; 2384 int i; 2385 2386 type = (bp->rx_buf_use_size << RX_BD_LEN_SHIFT) | 2387 RX_BD_TYPE_RX_PACKET_BD | RX_BD_FLAGS_EOP; 2388 2389 if (NET_IP_ALIGN == 2) 2390 type |= RX_BD_FLAGS_SOP; 2391 2392 rxr = &bp->rx_ring[ring_nr]; 2393 ring = &rxr->rx_ring_struct; 2394 bnxt_init_rxbd_pages(ring, type); 2395 2396 if (BNXT_RX_PAGE_MODE(bp) && bp->xdp_prog) { 2397 rxr->xdp_prog = bpf_prog_add(bp->xdp_prog, 1); 2398 if (IS_ERR(rxr->xdp_prog)) { 2399 int rc = PTR_ERR(rxr->xdp_prog); 2400 2401 rxr->xdp_prog = NULL; 2402 return rc; 2403 } 2404 } 2405 prod = rxr->rx_prod; 2406 for (i = 0; i < bp->rx_ring_size; i++) { 2407 if (bnxt_alloc_rx_data(bp, rxr, prod, GFP_KERNEL) != 0) { 2408 netdev_warn(dev, "init'ed rx ring %d with %d/%d skbs only\n", 2409 ring_nr, i, bp->rx_ring_size); 2410 break; 2411 } 2412 prod = NEXT_RX(prod); 2413 } 2414 rxr->rx_prod = prod; 2415 ring->fw_ring_id = INVALID_HW_RING_ID; 2416 2417 ring = &rxr->rx_agg_ring_struct; 2418 ring->fw_ring_id = INVALID_HW_RING_ID; 2419 2420 if (!(bp->flags & BNXT_FLAG_AGG_RINGS)) 2421 return 0; 2422 2423 type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) | 2424 RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP; 2425 2426 bnxt_init_rxbd_pages(ring, type); 2427 2428 prod = rxr->rx_agg_prod; 2429 for (i = 0; i < bp->rx_agg_ring_size; i++) { 2430 if (bnxt_alloc_rx_page(bp, rxr, prod, GFP_KERNEL) != 0) { 2431 netdev_warn(dev, "init'ed rx ring %d with %d/%d pages only\n", 2432 ring_nr, i, bp->rx_ring_size); 2433 break; 2434 } 2435 prod = NEXT_RX_AGG(prod); 2436 } 2437 rxr->rx_agg_prod = prod; 2438 2439 if (bp->flags & BNXT_FLAG_TPA) { 2440 if (rxr->rx_tpa) { 2441 u8 *data; 2442 dma_addr_t mapping; 2443 2444 for (i = 0; i < MAX_TPA; i++) { 2445 data = __bnxt_alloc_rx_data(bp, &mapping, 2446 GFP_KERNEL); 2447 if (!data) 2448 return -ENOMEM; 2449 2450 rxr->rx_tpa[i].data = data; 2451 rxr->rx_tpa[i].data_ptr = data + bp->rx_offset; 2452 rxr->rx_tpa[i].mapping = mapping; 2453 } 2454 } else { 2455 netdev_err(bp->dev, "No resource allocated for LRO/GRO\n"); 2456 return -ENOMEM; 2457 } 2458 } 2459 2460 return 0; 2461 } 2462 2463 static void bnxt_init_cp_rings(struct bnxt *bp) 2464 { 2465 int i; 2466 2467 for (i = 0; i < bp->cp_nr_rings; i++) { 2468 struct bnxt_cp_ring_info *cpr = &bp->bnapi[i]->cp_ring; 2469 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 2470 2471 ring->fw_ring_id = INVALID_HW_RING_ID; 2472 } 2473 } 2474 2475 static int bnxt_init_rx_rings(struct bnxt *bp) 2476 { 2477 int i, rc = 0; 2478 2479 if (BNXT_RX_PAGE_MODE(bp)) { 2480 bp->rx_offset = NET_IP_ALIGN + XDP_PACKET_HEADROOM; 2481 bp->rx_dma_offset = XDP_PACKET_HEADROOM; 2482 } else { 2483 bp->rx_offset = BNXT_RX_OFFSET; 2484 bp->rx_dma_offset = BNXT_RX_DMA_OFFSET; 2485 } 2486 2487 for (i = 0; i < bp->rx_nr_rings; i++) { 2488 rc = bnxt_init_one_rx_ring(bp, i); 2489 if (rc) 2490 break; 2491 } 2492 2493 return rc; 2494 } 2495 2496 static int bnxt_init_tx_rings(struct bnxt *bp) 2497 { 2498 u16 i; 2499 2500 bp->tx_wake_thresh = max_t(int, bp->tx_ring_size / 2, 2501 MAX_SKB_FRAGS + 1); 2502 2503 for (i = 0; i < bp->tx_nr_rings; i++) { 2504 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 2505 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 2506 2507 ring->fw_ring_id = INVALID_HW_RING_ID; 2508 } 2509 2510 return 0; 2511 } 2512 2513 static void bnxt_free_ring_grps(struct bnxt *bp) 2514 { 2515 kfree(bp->grp_info); 2516 bp->grp_info = NULL; 2517 } 2518 2519 static int bnxt_init_ring_grps(struct bnxt *bp, bool irq_re_init) 2520 { 2521 int i; 2522 2523 if (irq_re_init) { 2524 bp->grp_info = kcalloc(bp->cp_nr_rings, 2525 sizeof(struct bnxt_ring_grp_info), 2526 GFP_KERNEL); 2527 if (!bp->grp_info) 2528 return -ENOMEM; 2529 } 2530 for (i = 0; i < bp->cp_nr_rings; i++) { 2531 if (irq_re_init) 2532 bp->grp_info[i].fw_stats_ctx = INVALID_HW_RING_ID; 2533 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; 2534 bp->grp_info[i].rx_fw_ring_id = INVALID_HW_RING_ID; 2535 bp->grp_info[i].agg_fw_ring_id = INVALID_HW_RING_ID; 2536 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; 2537 } 2538 return 0; 2539 } 2540 2541 static void bnxt_free_vnics(struct bnxt *bp) 2542 { 2543 kfree(bp->vnic_info); 2544 bp->vnic_info = NULL; 2545 bp->nr_vnics = 0; 2546 } 2547 2548 static int bnxt_alloc_vnics(struct bnxt *bp) 2549 { 2550 int num_vnics = 1; 2551 2552 #ifdef CONFIG_RFS_ACCEL 2553 if (bp->flags & BNXT_FLAG_RFS) 2554 num_vnics += bp->rx_nr_rings; 2555 #endif 2556 2557 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 2558 num_vnics++; 2559 2560 bp->vnic_info = kcalloc(num_vnics, sizeof(struct bnxt_vnic_info), 2561 GFP_KERNEL); 2562 if (!bp->vnic_info) 2563 return -ENOMEM; 2564 2565 bp->nr_vnics = num_vnics; 2566 return 0; 2567 } 2568 2569 static void bnxt_init_vnics(struct bnxt *bp) 2570 { 2571 int i; 2572 2573 for (i = 0; i < bp->nr_vnics; i++) { 2574 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 2575 2576 vnic->fw_vnic_id = INVALID_HW_RING_ID; 2577 vnic->fw_rss_cos_lb_ctx[0] = INVALID_HW_RING_ID; 2578 vnic->fw_rss_cos_lb_ctx[1] = INVALID_HW_RING_ID; 2579 vnic->fw_l2_ctx_id = INVALID_HW_RING_ID; 2580 2581 if (bp->vnic_info[i].rss_hash_key) { 2582 if (i == 0) 2583 prandom_bytes(vnic->rss_hash_key, 2584 HW_HASH_KEY_SIZE); 2585 else 2586 memcpy(vnic->rss_hash_key, 2587 bp->vnic_info[0].rss_hash_key, 2588 HW_HASH_KEY_SIZE); 2589 } 2590 } 2591 } 2592 2593 static int bnxt_calc_nr_ring_pages(u32 ring_size, int desc_per_pg) 2594 { 2595 int pages; 2596 2597 pages = ring_size / desc_per_pg; 2598 2599 if (!pages) 2600 return 1; 2601 2602 pages++; 2603 2604 while (pages & (pages - 1)) 2605 pages++; 2606 2607 return pages; 2608 } 2609 2610 void bnxt_set_tpa_flags(struct bnxt *bp) 2611 { 2612 bp->flags &= ~BNXT_FLAG_TPA; 2613 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) 2614 return; 2615 if (bp->dev->features & NETIF_F_LRO) 2616 bp->flags |= BNXT_FLAG_LRO; 2617 if (bp->dev->features & NETIF_F_GRO) 2618 bp->flags |= BNXT_FLAG_GRO; 2619 } 2620 2621 /* bp->rx_ring_size, bp->tx_ring_size, dev->mtu, BNXT_FLAG_{G|L}RO flags must 2622 * be set on entry. 2623 */ 2624 void bnxt_set_ring_params(struct bnxt *bp) 2625 { 2626 u32 ring_size, rx_size, rx_space; 2627 u32 agg_factor = 0, agg_ring_size = 0; 2628 2629 /* 8 for CRC and VLAN */ 2630 rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8); 2631 2632 rx_space = rx_size + NET_SKB_PAD + 2633 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 2634 2635 bp->rx_copy_thresh = BNXT_RX_COPY_THRESH; 2636 ring_size = bp->rx_ring_size; 2637 bp->rx_agg_ring_size = 0; 2638 bp->rx_agg_nr_pages = 0; 2639 2640 if (bp->flags & BNXT_FLAG_TPA) 2641 agg_factor = min_t(u32, 4, 65536 / BNXT_RX_PAGE_SIZE); 2642 2643 bp->flags &= ~BNXT_FLAG_JUMBO; 2644 if (rx_space > PAGE_SIZE && !(bp->flags & BNXT_FLAG_NO_AGG_RINGS)) { 2645 u32 jumbo_factor; 2646 2647 bp->flags |= BNXT_FLAG_JUMBO; 2648 jumbo_factor = PAGE_ALIGN(bp->dev->mtu - 40) >> PAGE_SHIFT; 2649 if (jumbo_factor > agg_factor) 2650 agg_factor = jumbo_factor; 2651 } 2652 agg_ring_size = ring_size * agg_factor; 2653 2654 if (agg_ring_size) { 2655 bp->rx_agg_nr_pages = bnxt_calc_nr_ring_pages(agg_ring_size, 2656 RX_DESC_CNT); 2657 if (bp->rx_agg_nr_pages > MAX_RX_AGG_PAGES) { 2658 u32 tmp = agg_ring_size; 2659 2660 bp->rx_agg_nr_pages = MAX_RX_AGG_PAGES; 2661 agg_ring_size = MAX_RX_AGG_PAGES * RX_DESC_CNT - 1; 2662 netdev_warn(bp->dev, "rx agg ring size %d reduced to %d.\n", 2663 tmp, agg_ring_size); 2664 } 2665 bp->rx_agg_ring_size = agg_ring_size; 2666 bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1; 2667 rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN); 2668 rx_space = rx_size + NET_SKB_PAD + 2669 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); 2670 } 2671 2672 bp->rx_buf_use_size = rx_size; 2673 bp->rx_buf_size = rx_space; 2674 2675 bp->rx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, RX_DESC_CNT); 2676 bp->rx_ring_mask = (bp->rx_nr_pages * RX_DESC_CNT) - 1; 2677 2678 ring_size = bp->tx_ring_size; 2679 bp->tx_nr_pages = bnxt_calc_nr_ring_pages(ring_size, TX_DESC_CNT); 2680 bp->tx_ring_mask = (bp->tx_nr_pages * TX_DESC_CNT) - 1; 2681 2682 ring_size = bp->rx_ring_size * (2 + agg_factor) + bp->tx_ring_size; 2683 bp->cp_ring_size = ring_size; 2684 2685 bp->cp_nr_pages = bnxt_calc_nr_ring_pages(ring_size, CP_DESC_CNT); 2686 if (bp->cp_nr_pages > MAX_CP_PAGES) { 2687 bp->cp_nr_pages = MAX_CP_PAGES; 2688 bp->cp_ring_size = MAX_CP_PAGES * CP_DESC_CNT - 1; 2689 netdev_warn(bp->dev, "completion ring size %d reduced to %d.\n", 2690 ring_size, bp->cp_ring_size); 2691 } 2692 bp->cp_bit = bp->cp_nr_pages * CP_DESC_CNT; 2693 bp->cp_ring_mask = bp->cp_bit - 1; 2694 } 2695 2696 int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode) 2697 { 2698 if (page_mode) { 2699 if (bp->dev->mtu > BNXT_MAX_PAGE_MODE_MTU) 2700 return -EOPNOTSUPP; 2701 bp->dev->max_mtu = BNXT_MAX_PAGE_MODE_MTU; 2702 bp->flags &= ~BNXT_FLAG_AGG_RINGS; 2703 bp->flags |= BNXT_FLAG_NO_AGG_RINGS | BNXT_FLAG_RX_PAGE_MODE; 2704 bp->dev->hw_features &= ~NETIF_F_LRO; 2705 bp->dev->features &= ~NETIF_F_LRO; 2706 bp->rx_dir = DMA_BIDIRECTIONAL; 2707 bp->rx_skb_func = bnxt_rx_page_skb; 2708 } else { 2709 bp->dev->max_mtu = BNXT_MAX_MTU; 2710 bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE; 2711 bp->rx_dir = DMA_FROM_DEVICE; 2712 bp->rx_skb_func = bnxt_rx_skb; 2713 } 2714 return 0; 2715 } 2716 2717 static void bnxt_free_vnic_attributes(struct bnxt *bp) 2718 { 2719 int i; 2720 struct bnxt_vnic_info *vnic; 2721 struct pci_dev *pdev = bp->pdev; 2722 2723 if (!bp->vnic_info) 2724 return; 2725 2726 for (i = 0; i < bp->nr_vnics; i++) { 2727 vnic = &bp->vnic_info[i]; 2728 2729 kfree(vnic->fw_grp_ids); 2730 vnic->fw_grp_ids = NULL; 2731 2732 kfree(vnic->uc_list); 2733 vnic->uc_list = NULL; 2734 2735 if (vnic->mc_list) { 2736 dma_free_coherent(&pdev->dev, vnic->mc_list_size, 2737 vnic->mc_list, vnic->mc_list_mapping); 2738 vnic->mc_list = NULL; 2739 } 2740 2741 if (vnic->rss_table) { 2742 dma_free_coherent(&pdev->dev, PAGE_SIZE, 2743 vnic->rss_table, 2744 vnic->rss_table_dma_addr); 2745 vnic->rss_table = NULL; 2746 } 2747 2748 vnic->rss_hash_key = NULL; 2749 vnic->flags = 0; 2750 } 2751 } 2752 2753 static int bnxt_alloc_vnic_attributes(struct bnxt *bp) 2754 { 2755 int i, rc = 0, size; 2756 struct bnxt_vnic_info *vnic; 2757 struct pci_dev *pdev = bp->pdev; 2758 int max_rings; 2759 2760 for (i = 0; i < bp->nr_vnics; i++) { 2761 vnic = &bp->vnic_info[i]; 2762 2763 if (vnic->flags & BNXT_VNIC_UCAST_FLAG) { 2764 int mem_size = (BNXT_MAX_UC_ADDRS - 1) * ETH_ALEN; 2765 2766 if (mem_size > 0) { 2767 vnic->uc_list = kmalloc(mem_size, GFP_KERNEL); 2768 if (!vnic->uc_list) { 2769 rc = -ENOMEM; 2770 goto out; 2771 } 2772 } 2773 } 2774 2775 if (vnic->flags & BNXT_VNIC_MCAST_FLAG) { 2776 vnic->mc_list_size = BNXT_MAX_MC_ADDRS * ETH_ALEN; 2777 vnic->mc_list = 2778 dma_alloc_coherent(&pdev->dev, 2779 vnic->mc_list_size, 2780 &vnic->mc_list_mapping, 2781 GFP_KERNEL); 2782 if (!vnic->mc_list) { 2783 rc = -ENOMEM; 2784 goto out; 2785 } 2786 } 2787 2788 if (vnic->flags & BNXT_VNIC_RSS_FLAG) 2789 max_rings = bp->rx_nr_rings; 2790 else 2791 max_rings = 1; 2792 2793 vnic->fw_grp_ids = kcalloc(max_rings, sizeof(u16), GFP_KERNEL); 2794 if (!vnic->fw_grp_ids) { 2795 rc = -ENOMEM; 2796 goto out; 2797 } 2798 2799 if ((bp->flags & BNXT_FLAG_NEW_RSS_CAP) && 2800 !(vnic->flags & BNXT_VNIC_RSS_FLAG)) 2801 continue; 2802 2803 /* Allocate rss table and hash key */ 2804 vnic->rss_table = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, 2805 &vnic->rss_table_dma_addr, 2806 GFP_KERNEL); 2807 if (!vnic->rss_table) { 2808 rc = -ENOMEM; 2809 goto out; 2810 } 2811 2812 size = L1_CACHE_ALIGN(HW_HASH_INDEX_SIZE * sizeof(u16)); 2813 2814 vnic->rss_hash_key = ((void *)vnic->rss_table) + size; 2815 vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + size; 2816 } 2817 return 0; 2818 2819 out: 2820 return rc; 2821 } 2822 2823 static void bnxt_free_hwrm_resources(struct bnxt *bp) 2824 { 2825 struct pci_dev *pdev = bp->pdev; 2826 2827 dma_free_coherent(&pdev->dev, PAGE_SIZE, bp->hwrm_cmd_resp_addr, 2828 bp->hwrm_cmd_resp_dma_addr); 2829 2830 bp->hwrm_cmd_resp_addr = NULL; 2831 if (bp->hwrm_dbg_resp_addr) { 2832 dma_free_coherent(&pdev->dev, HWRM_DBG_REG_BUF_SIZE, 2833 bp->hwrm_dbg_resp_addr, 2834 bp->hwrm_dbg_resp_dma_addr); 2835 2836 bp->hwrm_dbg_resp_addr = NULL; 2837 } 2838 } 2839 2840 static int bnxt_alloc_hwrm_resources(struct bnxt *bp) 2841 { 2842 struct pci_dev *pdev = bp->pdev; 2843 2844 bp->hwrm_cmd_resp_addr = dma_alloc_coherent(&pdev->dev, PAGE_SIZE, 2845 &bp->hwrm_cmd_resp_dma_addr, 2846 GFP_KERNEL); 2847 if (!bp->hwrm_cmd_resp_addr) 2848 return -ENOMEM; 2849 bp->hwrm_dbg_resp_addr = dma_alloc_coherent(&pdev->dev, 2850 HWRM_DBG_REG_BUF_SIZE, 2851 &bp->hwrm_dbg_resp_dma_addr, 2852 GFP_KERNEL); 2853 if (!bp->hwrm_dbg_resp_addr) 2854 netdev_warn(bp->dev, "fail to alloc debug register dma mem\n"); 2855 2856 return 0; 2857 } 2858 2859 static void bnxt_free_stats(struct bnxt *bp) 2860 { 2861 u32 size, i; 2862 struct pci_dev *pdev = bp->pdev; 2863 2864 if (bp->hw_rx_port_stats) { 2865 dma_free_coherent(&pdev->dev, bp->hw_port_stats_size, 2866 bp->hw_rx_port_stats, 2867 bp->hw_rx_port_stats_map); 2868 bp->hw_rx_port_stats = NULL; 2869 bp->flags &= ~BNXT_FLAG_PORT_STATS; 2870 } 2871 2872 if (!bp->bnapi) 2873 return; 2874 2875 size = sizeof(struct ctx_hw_stats); 2876 2877 for (i = 0; i < bp->cp_nr_rings; i++) { 2878 struct bnxt_napi *bnapi = bp->bnapi[i]; 2879 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2880 2881 if (cpr->hw_stats) { 2882 dma_free_coherent(&pdev->dev, size, cpr->hw_stats, 2883 cpr->hw_stats_map); 2884 cpr->hw_stats = NULL; 2885 } 2886 } 2887 } 2888 2889 static int bnxt_alloc_stats(struct bnxt *bp) 2890 { 2891 u32 size, i; 2892 struct pci_dev *pdev = bp->pdev; 2893 2894 size = sizeof(struct ctx_hw_stats); 2895 2896 for (i = 0; i < bp->cp_nr_rings; i++) { 2897 struct bnxt_napi *bnapi = bp->bnapi[i]; 2898 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 2899 2900 cpr->hw_stats = dma_alloc_coherent(&pdev->dev, size, 2901 &cpr->hw_stats_map, 2902 GFP_KERNEL); 2903 if (!cpr->hw_stats) 2904 return -ENOMEM; 2905 2906 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; 2907 } 2908 2909 if (BNXT_PF(bp) && bp->chip_num != CHIP_NUM_58700) { 2910 bp->hw_port_stats_size = sizeof(struct rx_port_stats) + 2911 sizeof(struct tx_port_stats) + 1024; 2912 2913 bp->hw_rx_port_stats = 2914 dma_alloc_coherent(&pdev->dev, bp->hw_port_stats_size, 2915 &bp->hw_rx_port_stats_map, 2916 GFP_KERNEL); 2917 if (!bp->hw_rx_port_stats) 2918 return -ENOMEM; 2919 2920 bp->hw_tx_port_stats = (void *)(bp->hw_rx_port_stats + 1) + 2921 512; 2922 bp->hw_tx_port_stats_map = bp->hw_rx_port_stats_map + 2923 sizeof(struct rx_port_stats) + 512; 2924 bp->flags |= BNXT_FLAG_PORT_STATS; 2925 } 2926 return 0; 2927 } 2928 2929 static void bnxt_clear_ring_indices(struct bnxt *bp) 2930 { 2931 int i; 2932 2933 if (!bp->bnapi) 2934 return; 2935 2936 for (i = 0; i < bp->cp_nr_rings; i++) { 2937 struct bnxt_napi *bnapi = bp->bnapi[i]; 2938 struct bnxt_cp_ring_info *cpr; 2939 struct bnxt_rx_ring_info *rxr; 2940 struct bnxt_tx_ring_info *txr; 2941 2942 if (!bnapi) 2943 continue; 2944 2945 cpr = &bnapi->cp_ring; 2946 cpr->cp_raw_cons = 0; 2947 2948 txr = bnapi->tx_ring; 2949 if (txr) { 2950 txr->tx_prod = 0; 2951 txr->tx_cons = 0; 2952 } 2953 2954 rxr = bnapi->rx_ring; 2955 if (rxr) { 2956 rxr->rx_prod = 0; 2957 rxr->rx_agg_prod = 0; 2958 rxr->rx_sw_agg_prod = 0; 2959 rxr->rx_next_cons = 0; 2960 } 2961 } 2962 } 2963 2964 static void bnxt_free_ntp_fltrs(struct bnxt *bp, bool irq_reinit) 2965 { 2966 #ifdef CONFIG_RFS_ACCEL 2967 int i; 2968 2969 /* Under rtnl_lock and all our NAPIs have been disabled. It's 2970 * safe to delete the hash table. 2971 */ 2972 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { 2973 struct hlist_head *head; 2974 struct hlist_node *tmp; 2975 struct bnxt_ntuple_filter *fltr; 2976 2977 head = &bp->ntp_fltr_hash_tbl[i]; 2978 hlist_for_each_entry_safe(fltr, tmp, head, hash) { 2979 hlist_del(&fltr->hash); 2980 kfree(fltr); 2981 } 2982 } 2983 if (irq_reinit) { 2984 kfree(bp->ntp_fltr_bmap); 2985 bp->ntp_fltr_bmap = NULL; 2986 } 2987 bp->ntp_fltr_count = 0; 2988 #endif 2989 } 2990 2991 static int bnxt_alloc_ntp_fltrs(struct bnxt *bp) 2992 { 2993 #ifdef CONFIG_RFS_ACCEL 2994 int i, rc = 0; 2995 2996 if (!(bp->flags & BNXT_FLAG_RFS)) 2997 return 0; 2998 2999 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) 3000 INIT_HLIST_HEAD(&bp->ntp_fltr_hash_tbl[i]); 3001 3002 bp->ntp_fltr_count = 0; 3003 bp->ntp_fltr_bmap = kzalloc(BITS_TO_LONGS(BNXT_NTP_FLTR_MAX_FLTR), 3004 GFP_KERNEL); 3005 3006 if (!bp->ntp_fltr_bmap) 3007 rc = -ENOMEM; 3008 3009 return rc; 3010 #else 3011 return 0; 3012 #endif 3013 } 3014 3015 static void bnxt_free_mem(struct bnxt *bp, bool irq_re_init) 3016 { 3017 bnxt_free_vnic_attributes(bp); 3018 bnxt_free_tx_rings(bp); 3019 bnxt_free_rx_rings(bp); 3020 bnxt_free_cp_rings(bp); 3021 bnxt_free_ntp_fltrs(bp, irq_re_init); 3022 if (irq_re_init) { 3023 bnxt_free_stats(bp); 3024 bnxt_free_ring_grps(bp); 3025 bnxt_free_vnics(bp); 3026 kfree(bp->tx_ring_map); 3027 bp->tx_ring_map = NULL; 3028 kfree(bp->tx_ring); 3029 bp->tx_ring = NULL; 3030 kfree(bp->rx_ring); 3031 bp->rx_ring = NULL; 3032 kfree(bp->bnapi); 3033 bp->bnapi = NULL; 3034 } else { 3035 bnxt_clear_ring_indices(bp); 3036 } 3037 } 3038 3039 static int bnxt_alloc_mem(struct bnxt *bp, bool irq_re_init) 3040 { 3041 int i, j, rc, size, arr_size; 3042 void *bnapi; 3043 3044 if (irq_re_init) { 3045 /* Allocate bnapi mem pointer array and mem block for 3046 * all queues 3047 */ 3048 arr_size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi *) * 3049 bp->cp_nr_rings); 3050 size = L1_CACHE_ALIGN(sizeof(struct bnxt_napi)); 3051 bnapi = kzalloc(arr_size + size * bp->cp_nr_rings, GFP_KERNEL); 3052 if (!bnapi) 3053 return -ENOMEM; 3054 3055 bp->bnapi = bnapi; 3056 bnapi += arr_size; 3057 for (i = 0; i < bp->cp_nr_rings; i++, bnapi += size) { 3058 bp->bnapi[i] = bnapi; 3059 bp->bnapi[i]->index = i; 3060 bp->bnapi[i]->bp = bp; 3061 } 3062 3063 bp->rx_ring = kcalloc(bp->rx_nr_rings, 3064 sizeof(struct bnxt_rx_ring_info), 3065 GFP_KERNEL); 3066 if (!bp->rx_ring) 3067 return -ENOMEM; 3068 3069 for (i = 0; i < bp->rx_nr_rings; i++) { 3070 bp->rx_ring[i].bnapi = bp->bnapi[i]; 3071 bp->bnapi[i]->rx_ring = &bp->rx_ring[i]; 3072 } 3073 3074 bp->tx_ring = kcalloc(bp->tx_nr_rings, 3075 sizeof(struct bnxt_tx_ring_info), 3076 GFP_KERNEL); 3077 if (!bp->tx_ring) 3078 return -ENOMEM; 3079 3080 bp->tx_ring_map = kcalloc(bp->tx_nr_rings, sizeof(u16), 3081 GFP_KERNEL); 3082 3083 if (!bp->tx_ring_map) 3084 return -ENOMEM; 3085 3086 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 3087 j = 0; 3088 else 3089 j = bp->rx_nr_rings; 3090 3091 for (i = 0; i < bp->tx_nr_rings; i++, j++) { 3092 bp->tx_ring[i].bnapi = bp->bnapi[j]; 3093 bp->bnapi[j]->tx_ring = &bp->tx_ring[i]; 3094 bp->tx_ring_map[i] = bp->tx_nr_rings_xdp + i; 3095 if (i >= bp->tx_nr_rings_xdp) { 3096 bp->tx_ring[i].txq_index = i - 3097 bp->tx_nr_rings_xdp; 3098 bp->bnapi[j]->tx_int = bnxt_tx_int; 3099 } else { 3100 bp->bnapi[j]->flags |= BNXT_NAPI_FLAG_XDP; 3101 bp->bnapi[j]->tx_int = bnxt_tx_int_xdp; 3102 } 3103 } 3104 3105 rc = bnxt_alloc_stats(bp); 3106 if (rc) 3107 goto alloc_mem_err; 3108 3109 rc = bnxt_alloc_ntp_fltrs(bp); 3110 if (rc) 3111 goto alloc_mem_err; 3112 3113 rc = bnxt_alloc_vnics(bp); 3114 if (rc) 3115 goto alloc_mem_err; 3116 } 3117 3118 bnxt_init_ring_struct(bp); 3119 3120 rc = bnxt_alloc_rx_rings(bp); 3121 if (rc) 3122 goto alloc_mem_err; 3123 3124 rc = bnxt_alloc_tx_rings(bp); 3125 if (rc) 3126 goto alloc_mem_err; 3127 3128 rc = bnxt_alloc_cp_rings(bp); 3129 if (rc) 3130 goto alloc_mem_err; 3131 3132 bp->vnic_info[0].flags |= BNXT_VNIC_RSS_FLAG | BNXT_VNIC_MCAST_FLAG | 3133 BNXT_VNIC_UCAST_FLAG; 3134 rc = bnxt_alloc_vnic_attributes(bp); 3135 if (rc) 3136 goto alloc_mem_err; 3137 return 0; 3138 3139 alloc_mem_err: 3140 bnxt_free_mem(bp, true); 3141 return rc; 3142 } 3143 3144 static void bnxt_disable_int(struct bnxt *bp) 3145 { 3146 int i; 3147 3148 if (!bp->bnapi) 3149 return; 3150 3151 for (i = 0; i < bp->cp_nr_rings; i++) { 3152 struct bnxt_napi *bnapi = bp->bnapi[i]; 3153 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3154 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 3155 3156 if (ring->fw_ring_id != INVALID_HW_RING_ID) 3157 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons); 3158 } 3159 } 3160 3161 static void bnxt_disable_int_sync(struct bnxt *bp) 3162 { 3163 int i; 3164 3165 atomic_inc(&bp->intr_sem); 3166 3167 bnxt_disable_int(bp); 3168 for (i = 0; i < bp->cp_nr_rings; i++) 3169 synchronize_irq(bp->irq_tbl[i].vector); 3170 } 3171 3172 static void bnxt_enable_int(struct bnxt *bp) 3173 { 3174 int i; 3175 3176 atomic_set(&bp->intr_sem, 0); 3177 for (i = 0; i < bp->cp_nr_rings; i++) { 3178 struct bnxt_napi *bnapi = bp->bnapi[i]; 3179 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 3180 3181 BNXT_CP_DB_REARM(cpr->cp_doorbell, cpr->cp_raw_cons); 3182 } 3183 } 3184 3185 void bnxt_hwrm_cmd_hdr_init(struct bnxt *bp, void *request, u16 req_type, 3186 u16 cmpl_ring, u16 target_id) 3187 { 3188 struct input *req = request; 3189 3190 req->req_type = cpu_to_le16(req_type); 3191 req->cmpl_ring = cpu_to_le16(cmpl_ring); 3192 req->target_id = cpu_to_le16(target_id); 3193 req->resp_addr = cpu_to_le64(bp->hwrm_cmd_resp_dma_addr); 3194 } 3195 3196 static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void *msg, u32 msg_len, 3197 int timeout, bool silent) 3198 { 3199 int i, intr_process, rc, tmo_count; 3200 struct input *req = msg; 3201 u32 *data = msg; 3202 __le32 *resp_len, *valid; 3203 u16 cp_ring_id, len = 0; 3204 struct hwrm_err_output *resp = bp->hwrm_cmd_resp_addr; 3205 3206 req->seq_id = cpu_to_le16(bp->hwrm_cmd_seq++); 3207 memset(resp, 0, PAGE_SIZE); 3208 cp_ring_id = le16_to_cpu(req->cmpl_ring); 3209 intr_process = (cp_ring_id == INVALID_HW_RING_ID) ? 0 : 1; 3210 3211 /* Write request msg to hwrm channel */ 3212 __iowrite32_copy(bp->bar0, data, msg_len / 4); 3213 3214 for (i = msg_len; i < BNXT_HWRM_MAX_REQ_LEN; i += 4) 3215 writel(0, bp->bar0 + i); 3216 3217 /* currently supports only one outstanding message */ 3218 if (intr_process) 3219 bp->hwrm_intr_seq_id = le16_to_cpu(req->seq_id); 3220 3221 /* Ring channel doorbell */ 3222 writel(1, bp->bar0 + 0x100); 3223 3224 if (!timeout) 3225 timeout = DFLT_HWRM_CMD_TIMEOUT; 3226 3227 i = 0; 3228 tmo_count = timeout * 40; 3229 if (intr_process) { 3230 /* Wait until hwrm response cmpl interrupt is processed */ 3231 while (bp->hwrm_intr_seq_id != HWRM_SEQ_ID_INVALID && 3232 i++ < tmo_count) { 3233 usleep_range(25, 40); 3234 } 3235 3236 if (bp->hwrm_intr_seq_id != HWRM_SEQ_ID_INVALID) { 3237 netdev_err(bp->dev, "Resp cmpl intr err msg: 0x%x\n", 3238 le16_to_cpu(req->req_type)); 3239 return -1; 3240 } 3241 } else { 3242 /* Check if response len is updated */ 3243 resp_len = bp->hwrm_cmd_resp_addr + HWRM_RESP_LEN_OFFSET; 3244 for (i = 0; i < tmo_count; i++) { 3245 len = (le32_to_cpu(*resp_len) & HWRM_RESP_LEN_MASK) >> 3246 HWRM_RESP_LEN_SFT; 3247 if (len) 3248 break; 3249 usleep_range(25, 40); 3250 } 3251 3252 if (i >= tmo_count) { 3253 netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d\n", 3254 timeout, le16_to_cpu(req->req_type), 3255 le16_to_cpu(req->seq_id), len); 3256 return -1; 3257 } 3258 3259 /* Last word of resp contains valid bit */ 3260 valid = bp->hwrm_cmd_resp_addr + len - 4; 3261 for (i = 0; i < 5; i++) { 3262 if (le32_to_cpu(*valid) & HWRM_RESP_VALID_MASK) 3263 break; 3264 udelay(1); 3265 } 3266 3267 if (i >= 5) { 3268 netdev_err(bp->dev, "Error (timeout: %d) msg {0x%x 0x%x} len:%d v:%d\n", 3269 timeout, le16_to_cpu(req->req_type), 3270 le16_to_cpu(req->seq_id), len, *valid); 3271 return -1; 3272 } 3273 } 3274 3275 rc = le16_to_cpu(resp->error_code); 3276 if (rc && !silent) 3277 netdev_err(bp->dev, "hwrm req_type 0x%x seq id 0x%x error 0x%x\n", 3278 le16_to_cpu(resp->req_type), 3279 le16_to_cpu(resp->seq_id), rc); 3280 return rc; 3281 } 3282 3283 int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) 3284 { 3285 return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false); 3286 } 3287 3288 int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout) 3289 { 3290 int rc; 3291 3292 mutex_lock(&bp->hwrm_cmd_lock); 3293 rc = _hwrm_send_message(bp, msg, msg_len, timeout); 3294 mutex_unlock(&bp->hwrm_cmd_lock); 3295 return rc; 3296 } 3297 3298 int hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len, 3299 int timeout) 3300 { 3301 int rc; 3302 3303 mutex_lock(&bp->hwrm_cmd_lock); 3304 rc = bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true); 3305 mutex_unlock(&bp->hwrm_cmd_lock); 3306 return rc; 3307 } 3308 3309 int bnxt_hwrm_func_rgtr_async_events(struct bnxt *bp, unsigned long *bmap, 3310 int bmap_size) 3311 { 3312 struct hwrm_func_drv_rgtr_input req = {0}; 3313 DECLARE_BITMAP(async_events_bmap, 256); 3314 u32 *events = (u32 *)async_events_bmap; 3315 int i; 3316 3317 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_RGTR, -1, -1); 3318 3319 req.enables = 3320 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD); 3321 3322 memset(async_events_bmap, 0, sizeof(async_events_bmap)); 3323 for (i = 0; i < ARRAY_SIZE(bnxt_async_events_arr); i++) 3324 __set_bit(bnxt_async_events_arr[i], async_events_bmap); 3325 3326 if (bmap && bmap_size) { 3327 for (i = 0; i < bmap_size; i++) { 3328 if (test_bit(i, bmap)) 3329 __set_bit(i, async_events_bmap); 3330 } 3331 } 3332 3333 for (i = 0; i < 8; i++) 3334 req.async_event_fwd[i] |= cpu_to_le32(events[i]); 3335 3336 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3337 } 3338 3339 static int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp) 3340 { 3341 struct hwrm_func_drv_rgtr_input req = {0}; 3342 3343 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_RGTR, -1, -1); 3344 3345 req.enables = 3346 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE | 3347 FUNC_DRV_RGTR_REQ_ENABLES_VER); 3348 3349 req.os_type = cpu_to_le16(FUNC_DRV_RGTR_REQ_OS_TYPE_LINUX); 3350 req.ver_maj = DRV_VER_MAJ; 3351 req.ver_min = DRV_VER_MIN; 3352 req.ver_upd = DRV_VER_UPD; 3353 3354 if (BNXT_PF(bp)) { 3355 DECLARE_BITMAP(vf_req_snif_bmap, 256); 3356 u32 *data = (u32 *)vf_req_snif_bmap; 3357 int i; 3358 3359 memset(vf_req_snif_bmap, 0, sizeof(vf_req_snif_bmap)); 3360 for (i = 0; i < ARRAY_SIZE(bnxt_vf_req_snif); i++) 3361 __set_bit(bnxt_vf_req_snif[i], vf_req_snif_bmap); 3362 3363 for (i = 0; i < 8; i++) 3364 req.vf_req_fwd[i] = cpu_to_le32(data[i]); 3365 3366 req.enables |= 3367 cpu_to_le32(FUNC_DRV_RGTR_REQ_ENABLES_VF_REQ_FWD); 3368 } 3369 3370 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3371 } 3372 3373 static int bnxt_hwrm_func_drv_unrgtr(struct bnxt *bp) 3374 { 3375 struct hwrm_func_drv_unrgtr_input req = {0}; 3376 3377 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_DRV_UNRGTR, -1, -1); 3378 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3379 } 3380 3381 static int bnxt_hwrm_tunnel_dst_port_free(struct bnxt *bp, u8 tunnel_type) 3382 { 3383 u32 rc = 0; 3384 struct hwrm_tunnel_dst_port_free_input req = {0}; 3385 3386 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_FREE, -1, -1); 3387 req.tunnel_type = tunnel_type; 3388 3389 switch (tunnel_type) { 3390 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN: 3391 req.tunnel_dst_port_id = bp->vxlan_fw_dst_port_id; 3392 break; 3393 case TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE: 3394 req.tunnel_dst_port_id = bp->nge_fw_dst_port_id; 3395 break; 3396 default: 3397 break; 3398 } 3399 3400 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3401 if (rc) 3402 netdev_err(bp->dev, "hwrm_tunnel_dst_port_free failed. rc:%d\n", 3403 rc); 3404 return rc; 3405 } 3406 3407 static int bnxt_hwrm_tunnel_dst_port_alloc(struct bnxt *bp, __be16 port, 3408 u8 tunnel_type) 3409 { 3410 u32 rc = 0; 3411 struct hwrm_tunnel_dst_port_alloc_input req = {0}; 3412 struct hwrm_tunnel_dst_port_alloc_output *resp = bp->hwrm_cmd_resp_addr; 3413 3414 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_TUNNEL_DST_PORT_ALLOC, -1, -1); 3415 3416 req.tunnel_type = tunnel_type; 3417 req.tunnel_dst_port_val = port; 3418 3419 mutex_lock(&bp->hwrm_cmd_lock); 3420 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3421 if (rc) { 3422 netdev_err(bp->dev, "hwrm_tunnel_dst_port_alloc failed. rc:%d\n", 3423 rc); 3424 goto err_out; 3425 } 3426 3427 switch (tunnel_type) { 3428 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_VXLAN: 3429 bp->vxlan_fw_dst_port_id = resp->tunnel_dst_port_id; 3430 break; 3431 case TUNNEL_DST_PORT_ALLOC_REQ_TUNNEL_TYPE_GENEVE: 3432 bp->nge_fw_dst_port_id = resp->tunnel_dst_port_id; 3433 break; 3434 default: 3435 break; 3436 } 3437 3438 err_out: 3439 mutex_unlock(&bp->hwrm_cmd_lock); 3440 return rc; 3441 } 3442 3443 static int bnxt_hwrm_cfa_l2_set_rx_mask(struct bnxt *bp, u16 vnic_id) 3444 { 3445 struct hwrm_cfa_l2_set_rx_mask_input req = {0}; 3446 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 3447 3448 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_SET_RX_MASK, -1, -1); 3449 req.vnic_id = cpu_to_le32(vnic->fw_vnic_id); 3450 3451 req.num_mc_entries = cpu_to_le32(vnic->mc_list_count); 3452 req.mc_tbl_addr = cpu_to_le64(vnic->mc_list_mapping); 3453 req.mask = cpu_to_le32(vnic->rx_mask); 3454 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3455 } 3456 3457 #ifdef CONFIG_RFS_ACCEL 3458 static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp, 3459 struct bnxt_ntuple_filter *fltr) 3460 { 3461 struct hwrm_cfa_ntuple_filter_free_input req = {0}; 3462 3463 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_FREE, -1, -1); 3464 req.ntuple_filter_id = fltr->filter_id; 3465 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3466 } 3467 3468 #define BNXT_NTP_FLTR_FLAGS \ 3469 (CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_L2_FILTER_ID | \ 3470 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_ETHERTYPE | \ 3471 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_MACADDR | \ 3472 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IPADDR_TYPE | \ 3473 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR | \ 3474 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_IPADDR_MASK | \ 3475 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR | \ 3476 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_IPADDR_MASK | \ 3477 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_IP_PROTOCOL | \ 3478 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT | \ 3479 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_SRC_PORT_MASK | \ 3480 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT | \ 3481 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \ 3482 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID) 3483 3484 #define BNXT_NTP_TUNNEL_FLTR_FLAG \ 3485 CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE 3486 3487 static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp, 3488 struct bnxt_ntuple_filter *fltr) 3489 { 3490 int rc = 0; 3491 struct hwrm_cfa_ntuple_filter_alloc_input req = {0}; 3492 struct hwrm_cfa_ntuple_filter_alloc_output *resp = 3493 bp->hwrm_cmd_resp_addr; 3494 struct flow_keys *keys = &fltr->fkeys; 3495 struct bnxt_vnic_info *vnic = &bp->vnic_info[fltr->rxq + 1]; 3496 3497 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_NTUPLE_FILTER_ALLOC, -1, -1); 3498 req.l2_filter_id = bp->vnic_info[0].fw_l2_filter_id[fltr->l2_fltr_idx]; 3499 3500 req.enables = cpu_to_le32(BNXT_NTP_FLTR_FLAGS); 3501 3502 req.ethertype = htons(ETH_P_IP); 3503 memcpy(req.src_macaddr, fltr->src_mac_addr, ETH_ALEN); 3504 req.ip_addr_type = CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV4; 3505 req.ip_protocol = keys->basic.ip_proto; 3506 3507 if (keys->basic.n_proto == htons(ETH_P_IPV6)) { 3508 int i; 3509 3510 req.ethertype = htons(ETH_P_IPV6); 3511 req.ip_addr_type = 3512 CFA_NTUPLE_FILTER_ALLOC_REQ_IP_ADDR_TYPE_IPV6; 3513 *(struct in6_addr *)&req.src_ipaddr[0] = 3514 keys->addrs.v6addrs.src; 3515 *(struct in6_addr *)&req.dst_ipaddr[0] = 3516 keys->addrs.v6addrs.dst; 3517 for (i = 0; i < 4; i++) { 3518 req.src_ipaddr_mask[i] = cpu_to_be32(0xffffffff); 3519 req.dst_ipaddr_mask[i] = cpu_to_be32(0xffffffff); 3520 } 3521 } else { 3522 req.src_ipaddr[0] = keys->addrs.v4addrs.src; 3523 req.src_ipaddr_mask[0] = cpu_to_be32(0xffffffff); 3524 req.dst_ipaddr[0] = keys->addrs.v4addrs.dst; 3525 req.dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff); 3526 } 3527 if (keys->control.flags & FLOW_DIS_ENCAPSULATION) { 3528 req.enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG); 3529 req.tunnel_type = 3530 CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL; 3531 } 3532 3533 req.src_port = keys->ports.src; 3534 req.src_port_mask = cpu_to_be16(0xffff); 3535 req.dst_port = keys->ports.dst; 3536 req.dst_port_mask = cpu_to_be16(0xffff); 3537 3538 req.dst_id = cpu_to_le16(vnic->fw_vnic_id); 3539 mutex_lock(&bp->hwrm_cmd_lock); 3540 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3541 if (!rc) 3542 fltr->filter_id = resp->ntuple_filter_id; 3543 mutex_unlock(&bp->hwrm_cmd_lock); 3544 return rc; 3545 } 3546 #endif 3547 3548 static int bnxt_hwrm_set_vnic_filter(struct bnxt *bp, u16 vnic_id, u16 idx, 3549 u8 *mac_addr) 3550 { 3551 u32 rc = 0; 3552 struct hwrm_cfa_l2_filter_alloc_input req = {0}; 3553 struct hwrm_cfa_l2_filter_alloc_output *resp = bp->hwrm_cmd_resp_addr; 3554 3555 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_ALLOC, -1, -1); 3556 req.flags = cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX); 3557 if (!BNXT_CHIP_TYPE_NITRO_A0(bp)) 3558 req.flags |= 3559 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST); 3560 req.dst_id = cpu_to_le16(bp->vnic_info[vnic_id].fw_vnic_id); 3561 req.enables = 3562 cpu_to_le32(CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR | 3563 CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID | 3564 CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK); 3565 memcpy(req.l2_addr, mac_addr, ETH_ALEN); 3566 req.l2_addr_mask[0] = 0xff; 3567 req.l2_addr_mask[1] = 0xff; 3568 req.l2_addr_mask[2] = 0xff; 3569 req.l2_addr_mask[3] = 0xff; 3570 req.l2_addr_mask[4] = 0xff; 3571 req.l2_addr_mask[5] = 0xff; 3572 3573 mutex_lock(&bp->hwrm_cmd_lock); 3574 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3575 if (!rc) 3576 bp->vnic_info[vnic_id].fw_l2_filter_id[idx] = 3577 resp->l2_filter_id; 3578 mutex_unlock(&bp->hwrm_cmd_lock); 3579 return rc; 3580 } 3581 3582 static int bnxt_hwrm_clear_vnic_filter(struct bnxt *bp) 3583 { 3584 u16 i, j, num_of_vnics = 1; /* only vnic 0 supported */ 3585 int rc = 0; 3586 3587 /* Any associated ntuple filters will also be cleared by firmware. */ 3588 mutex_lock(&bp->hwrm_cmd_lock); 3589 for (i = 0; i < num_of_vnics; i++) { 3590 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 3591 3592 for (j = 0; j < vnic->uc_filter_count; j++) { 3593 struct hwrm_cfa_l2_filter_free_input req = {0}; 3594 3595 bnxt_hwrm_cmd_hdr_init(bp, &req, 3596 HWRM_CFA_L2_FILTER_FREE, -1, -1); 3597 3598 req.l2_filter_id = vnic->fw_l2_filter_id[j]; 3599 3600 rc = _hwrm_send_message(bp, &req, sizeof(req), 3601 HWRM_CMD_TIMEOUT); 3602 } 3603 vnic->uc_filter_count = 0; 3604 } 3605 mutex_unlock(&bp->hwrm_cmd_lock); 3606 3607 return rc; 3608 } 3609 3610 static int bnxt_hwrm_vnic_set_tpa(struct bnxt *bp, u16 vnic_id, u32 tpa_flags) 3611 { 3612 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 3613 struct hwrm_vnic_tpa_cfg_input req = {0}; 3614 3615 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_TPA_CFG, -1, -1); 3616 3617 if (tpa_flags) { 3618 u16 mss = bp->dev->mtu - 40; 3619 u32 nsegs, n, segs = 0, flags; 3620 3621 flags = VNIC_TPA_CFG_REQ_FLAGS_TPA | 3622 VNIC_TPA_CFG_REQ_FLAGS_ENCAP_TPA | 3623 VNIC_TPA_CFG_REQ_FLAGS_RSC_WND_UPDATE | 3624 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_ECN | 3625 VNIC_TPA_CFG_REQ_FLAGS_AGG_WITH_SAME_GRE_SEQ; 3626 if (tpa_flags & BNXT_FLAG_GRO) 3627 flags |= VNIC_TPA_CFG_REQ_FLAGS_GRO; 3628 3629 req.flags = cpu_to_le32(flags); 3630 3631 req.enables = 3632 cpu_to_le32(VNIC_TPA_CFG_REQ_ENABLES_MAX_AGG_SEGS | 3633 VNIC_TPA_CFG_REQ_ENABLES_MAX_AGGS | 3634 VNIC_TPA_CFG_REQ_ENABLES_MIN_AGG_LEN); 3635 3636 /* Number of segs are log2 units, and first packet is not 3637 * included as part of this units. 3638 */ 3639 if (mss <= BNXT_RX_PAGE_SIZE) { 3640 n = BNXT_RX_PAGE_SIZE / mss; 3641 nsegs = (MAX_SKB_FRAGS - 1) * n; 3642 } else { 3643 n = mss / BNXT_RX_PAGE_SIZE; 3644 if (mss & (BNXT_RX_PAGE_SIZE - 1)) 3645 n++; 3646 nsegs = (MAX_SKB_FRAGS - n) / n; 3647 } 3648 3649 segs = ilog2(nsegs); 3650 req.max_agg_segs = cpu_to_le16(segs); 3651 req.max_aggs = cpu_to_le16(VNIC_TPA_CFG_REQ_MAX_AGGS_MAX); 3652 3653 req.min_agg_len = cpu_to_le32(512); 3654 } 3655 req.vnic_id = cpu_to_le16(vnic->fw_vnic_id); 3656 3657 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3658 } 3659 3660 static int bnxt_hwrm_vnic_set_rss(struct bnxt *bp, u16 vnic_id, bool set_rss) 3661 { 3662 u32 i, j, max_rings; 3663 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 3664 struct hwrm_vnic_rss_cfg_input req = {0}; 3665 3666 if (vnic->fw_rss_cos_lb_ctx[0] == INVALID_HW_RING_ID) 3667 return 0; 3668 3669 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_CFG, -1, -1); 3670 if (set_rss) { 3671 req.hash_type = cpu_to_le32(bp->rss_hash_cfg); 3672 if (vnic->flags & BNXT_VNIC_RSS_FLAG) { 3673 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 3674 max_rings = bp->rx_nr_rings - 1; 3675 else 3676 max_rings = bp->rx_nr_rings; 3677 } else { 3678 max_rings = 1; 3679 } 3680 3681 /* Fill the RSS indirection table with ring group ids */ 3682 for (i = 0, j = 0; i < HW_HASH_INDEX_SIZE; i++, j++) { 3683 if (j == max_rings) 3684 j = 0; 3685 vnic->rss_table[i] = cpu_to_le16(vnic->fw_grp_ids[j]); 3686 } 3687 3688 req.ring_grp_tbl_addr = cpu_to_le64(vnic->rss_table_dma_addr); 3689 req.hash_key_tbl_addr = 3690 cpu_to_le64(vnic->rss_hash_key_dma_addr); 3691 } 3692 req.rss_ctx_idx = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); 3693 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3694 } 3695 3696 static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id) 3697 { 3698 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 3699 struct hwrm_vnic_plcmodes_cfg_input req = {0}; 3700 3701 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_PLCMODES_CFG, -1, -1); 3702 req.flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT | 3703 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 | 3704 VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6); 3705 req.enables = 3706 cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID | 3707 VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID); 3708 /* thresholds not implemented in firmware yet */ 3709 req.jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh); 3710 req.hds_threshold = cpu_to_le16(bp->rx_copy_thresh); 3711 req.vnic_id = cpu_to_le32(vnic->fw_vnic_id); 3712 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3713 } 3714 3715 static void bnxt_hwrm_vnic_ctx_free_one(struct bnxt *bp, u16 vnic_id, 3716 u16 ctx_idx) 3717 { 3718 struct hwrm_vnic_rss_cos_lb_ctx_free_input req = {0}; 3719 3720 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_FREE, -1, -1); 3721 req.rss_cos_lb_ctx_id = 3722 cpu_to_le16(bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx]); 3723 3724 hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3725 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = INVALID_HW_RING_ID; 3726 } 3727 3728 static void bnxt_hwrm_vnic_ctx_free(struct bnxt *bp) 3729 { 3730 int i, j; 3731 3732 for (i = 0; i < bp->nr_vnics; i++) { 3733 struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; 3734 3735 for (j = 0; j < BNXT_MAX_CTX_PER_VNIC; j++) { 3736 if (vnic->fw_rss_cos_lb_ctx[j] != INVALID_HW_RING_ID) 3737 bnxt_hwrm_vnic_ctx_free_one(bp, i, j); 3738 } 3739 } 3740 bp->rsscos_nr_ctxs = 0; 3741 } 3742 3743 static int bnxt_hwrm_vnic_ctx_alloc(struct bnxt *bp, u16 vnic_id, u16 ctx_idx) 3744 { 3745 int rc; 3746 struct hwrm_vnic_rss_cos_lb_ctx_alloc_input req = {0}; 3747 struct hwrm_vnic_rss_cos_lb_ctx_alloc_output *resp = 3748 bp->hwrm_cmd_resp_addr; 3749 3750 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_RSS_COS_LB_CTX_ALLOC, -1, 3751 -1); 3752 3753 mutex_lock(&bp->hwrm_cmd_lock); 3754 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3755 if (!rc) 3756 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[ctx_idx] = 3757 le16_to_cpu(resp->rss_cos_lb_ctx_id); 3758 mutex_unlock(&bp->hwrm_cmd_lock); 3759 3760 return rc; 3761 } 3762 3763 int bnxt_hwrm_vnic_cfg(struct bnxt *bp, u16 vnic_id) 3764 { 3765 unsigned int ring = 0, grp_idx; 3766 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 3767 struct hwrm_vnic_cfg_input req = {0}; 3768 u16 def_vlan = 0; 3769 3770 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_CFG, -1, -1); 3771 3772 req.enables = cpu_to_le32(VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP); 3773 /* Only RSS support for now TBD: COS & LB */ 3774 if (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID) { 3775 req.rss_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[0]); 3776 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | 3777 VNIC_CFG_REQ_ENABLES_MRU); 3778 } else if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) { 3779 req.rss_rule = 3780 cpu_to_le16(bp->vnic_info[0].fw_rss_cos_lb_ctx[0]); 3781 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_RSS_RULE | 3782 VNIC_CFG_REQ_ENABLES_MRU); 3783 req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_RSS_DFLT_CR_MODE); 3784 } else { 3785 req.rss_rule = cpu_to_le16(0xffff); 3786 } 3787 3788 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && 3789 (vnic->fw_rss_cos_lb_ctx[0] != INVALID_HW_RING_ID)) { 3790 req.cos_rule = cpu_to_le16(vnic->fw_rss_cos_lb_ctx[1]); 3791 req.enables |= cpu_to_le32(VNIC_CFG_REQ_ENABLES_COS_RULE); 3792 } else { 3793 req.cos_rule = cpu_to_le16(0xffff); 3794 } 3795 3796 if (vnic->flags & BNXT_VNIC_RSS_FLAG) 3797 ring = 0; 3798 else if (vnic->flags & BNXT_VNIC_RFS_FLAG) 3799 ring = vnic_id - 1; 3800 else if ((vnic_id == 1) && BNXT_CHIP_TYPE_NITRO_A0(bp)) 3801 ring = bp->rx_nr_rings - 1; 3802 3803 grp_idx = bp->rx_ring[ring].bnapi->index; 3804 req.vnic_id = cpu_to_le16(vnic->fw_vnic_id); 3805 req.dflt_ring_grp = cpu_to_le16(bp->grp_info[grp_idx].fw_grp_id); 3806 3807 req.lb_rule = cpu_to_le16(0xffff); 3808 req.mru = cpu_to_le16(bp->dev->mtu + ETH_HLEN + ETH_FCS_LEN + 3809 VLAN_HLEN); 3810 3811 #ifdef CONFIG_BNXT_SRIOV 3812 if (BNXT_VF(bp)) 3813 def_vlan = bp->vf.vlan; 3814 #endif 3815 if ((bp->flags & BNXT_FLAG_STRIP_VLAN) || def_vlan) 3816 req.flags |= cpu_to_le32(VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE); 3817 if (!vnic_id && bnxt_ulp_registered(bp->edev, BNXT_ROCE_ULP)) 3818 req.flags |= 3819 cpu_to_le32(VNIC_CFG_REQ_FLAGS_ROCE_DUAL_VNIC_MODE); 3820 3821 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3822 } 3823 3824 static int bnxt_hwrm_vnic_free_one(struct bnxt *bp, u16 vnic_id) 3825 { 3826 u32 rc = 0; 3827 3828 if (bp->vnic_info[vnic_id].fw_vnic_id != INVALID_HW_RING_ID) { 3829 struct hwrm_vnic_free_input req = {0}; 3830 3831 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_FREE, -1, -1); 3832 req.vnic_id = 3833 cpu_to_le32(bp->vnic_info[vnic_id].fw_vnic_id); 3834 3835 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3836 if (rc) 3837 return rc; 3838 bp->vnic_info[vnic_id].fw_vnic_id = INVALID_HW_RING_ID; 3839 } 3840 return rc; 3841 } 3842 3843 static void bnxt_hwrm_vnic_free(struct bnxt *bp) 3844 { 3845 u16 i; 3846 3847 for (i = 0; i < bp->nr_vnics; i++) 3848 bnxt_hwrm_vnic_free_one(bp, i); 3849 } 3850 3851 static int bnxt_hwrm_vnic_alloc(struct bnxt *bp, u16 vnic_id, 3852 unsigned int start_rx_ring_idx, 3853 unsigned int nr_rings) 3854 { 3855 int rc = 0; 3856 unsigned int i, j, grp_idx, end_idx = start_rx_ring_idx + nr_rings; 3857 struct hwrm_vnic_alloc_input req = {0}; 3858 struct hwrm_vnic_alloc_output *resp = bp->hwrm_cmd_resp_addr; 3859 3860 /* map ring groups to this vnic */ 3861 for (i = start_rx_ring_idx, j = 0; i < end_idx; i++, j++) { 3862 grp_idx = bp->rx_ring[i].bnapi->index; 3863 if (bp->grp_info[grp_idx].fw_grp_id == INVALID_HW_RING_ID) { 3864 netdev_err(bp->dev, "Not enough ring groups avail:%x req:%x\n", 3865 j, nr_rings); 3866 break; 3867 } 3868 bp->vnic_info[vnic_id].fw_grp_ids[j] = 3869 bp->grp_info[grp_idx].fw_grp_id; 3870 } 3871 3872 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[0] = INVALID_HW_RING_ID; 3873 bp->vnic_info[vnic_id].fw_rss_cos_lb_ctx[1] = INVALID_HW_RING_ID; 3874 if (vnic_id == 0) 3875 req.flags = cpu_to_le32(VNIC_ALLOC_REQ_FLAGS_DEFAULT); 3876 3877 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_ALLOC, -1, -1); 3878 3879 mutex_lock(&bp->hwrm_cmd_lock); 3880 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3881 if (!rc) 3882 bp->vnic_info[vnic_id].fw_vnic_id = le32_to_cpu(resp->vnic_id); 3883 mutex_unlock(&bp->hwrm_cmd_lock); 3884 return rc; 3885 } 3886 3887 static int bnxt_hwrm_vnic_qcaps(struct bnxt *bp) 3888 { 3889 struct hwrm_vnic_qcaps_output *resp = bp->hwrm_cmd_resp_addr; 3890 struct hwrm_vnic_qcaps_input req = {0}; 3891 int rc; 3892 3893 if (bp->hwrm_spec_code < 0x10600) 3894 return 0; 3895 3896 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VNIC_QCAPS, -1, -1); 3897 mutex_lock(&bp->hwrm_cmd_lock); 3898 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 3899 if (!rc) { 3900 if (resp->flags & 3901 cpu_to_le32(VNIC_QCAPS_RESP_FLAGS_RSS_DFLT_CR_CAP)) 3902 bp->flags |= BNXT_FLAG_NEW_RSS_CAP; 3903 } 3904 mutex_unlock(&bp->hwrm_cmd_lock); 3905 return rc; 3906 } 3907 3908 static int bnxt_hwrm_ring_grp_alloc(struct bnxt *bp) 3909 { 3910 u16 i; 3911 u32 rc = 0; 3912 3913 mutex_lock(&bp->hwrm_cmd_lock); 3914 for (i = 0; i < bp->rx_nr_rings; i++) { 3915 struct hwrm_ring_grp_alloc_input req = {0}; 3916 struct hwrm_ring_grp_alloc_output *resp = 3917 bp->hwrm_cmd_resp_addr; 3918 unsigned int grp_idx = bp->rx_ring[i].bnapi->index; 3919 3920 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_ALLOC, -1, -1); 3921 3922 req.cr = cpu_to_le16(bp->grp_info[grp_idx].cp_fw_ring_id); 3923 req.rr = cpu_to_le16(bp->grp_info[grp_idx].rx_fw_ring_id); 3924 req.ar = cpu_to_le16(bp->grp_info[grp_idx].agg_fw_ring_id); 3925 req.sc = cpu_to_le16(bp->grp_info[grp_idx].fw_stats_ctx); 3926 3927 rc = _hwrm_send_message(bp, &req, sizeof(req), 3928 HWRM_CMD_TIMEOUT); 3929 if (rc) 3930 break; 3931 3932 bp->grp_info[grp_idx].fw_grp_id = 3933 le32_to_cpu(resp->ring_group_id); 3934 } 3935 mutex_unlock(&bp->hwrm_cmd_lock); 3936 return rc; 3937 } 3938 3939 static int bnxt_hwrm_ring_grp_free(struct bnxt *bp) 3940 { 3941 u16 i; 3942 u32 rc = 0; 3943 struct hwrm_ring_grp_free_input req = {0}; 3944 3945 if (!bp->grp_info) 3946 return 0; 3947 3948 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_GRP_FREE, -1, -1); 3949 3950 mutex_lock(&bp->hwrm_cmd_lock); 3951 for (i = 0; i < bp->cp_nr_rings; i++) { 3952 if (bp->grp_info[i].fw_grp_id == INVALID_HW_RING_ID) 3953 continue; 3954 req.ring_group_id = 3955 cpu_to_le32(bp->grp_info[i].fw_grp_id); 3956 3957 rc = _hwrm_send_message(bp, &req, sizeof(req), 3958 HWRM_CMD_TIMEOUT); 3959 if (rc) 3960 break; 3961 bp->grp_info[i].fw_grp_id = INVALID_HW_RING_ID; 3962 } 3963 mutex_unlock(&bp->hwrm_cmd_lock); 3964 return rc; 3965 } 3966 3967 static int hwrm_ring_alloc_send_msg(struct bnxt *bp, 3968 struct bnxt_ring_struct *ring, 3969 u32 ring_type, u32 map_index, 3970 u32 stats_ctx_id) 3971 { 3972 int rc = 0, err = 0; 3973 struct hwrm_ring_alloc_input req = {0}; 3974 struct hwrm_ring_alloc_output *resp = bp->hwrm_cmd_resp_addr; 3975 u16 ring_id; 3976 3977 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_ALLOC, -1, -1); 3978 3979 req.enables = 0; 3980 if (ring->nr_pages > 1) { 3981 req.page_tbl_addr = cpu_to_le64(ring->pg_tbl_map); 3982 /* Page size is in log2 units */ 3983 req.page_size = BNXT_PAGE_SHIFT; 3984 req.page_tbl_depth = 1; 3985 } else { 3986 req.page_tbl_addr = cpu_to_le64(ring->dma_arr[0]); 3987 } 3988 req.fbo = 0; 3989 /* Association of ring index with doorbell index and MSIX number */ 3990 req.logical_id = cpu_to_le16(map_index); 3991 3992 switch (ring_type) { 3993 case HWRM_RING_ALLOC_TX: 3994 req.ring_type = RING_ALLOC_REQ_RING_TYPE_TX; 3995 /* Association of transmit ring with completion ring */ 3996 req.cmpl_ring_id = 3997 cpu_to_le16(bp->grp_info[map_index].cp_fw_ring_id); 3998 req.length = cpu_to_le32(bp->tx_ring_mask + 1); 3999 req.stat_ctx_id = cpu_to_le32(stats_ctx_id); 4000 req.queue_id = cpu_to_le16(ring->queue_id); 4001 break; 4002 case HWRM_RING_ALLOC_RX: 4003 req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX; 4004 req.length = cpu_to_le32(bp->rx_ring_mask + 1); 4005 break; 4006 case HWRM_RING_ALLOC_AGG: 4007 req.ring_type = RING_ALLOC_REQ_RING_TYPE_RX; 4008 req.length = cpu_to_le32(bp->rx_agg_ring_mask + 1); 4009 break; 4010 case HWRM_RING_ALLOC_CMPL: 4011 req.ring_type = RING_ALLOC_REQ_RING_TYPE_L2_CMPL; 4012 req.length = cpu_to_le32(bp->cp_ring_mask + 1); 4013 if (bp->flags & BNXT_FLAG_USING_MSIX) 4014 req.int_mode = RING_ALLOC_REQ_INT_MODE_MSIX; 4015 break; 4016 default: 4017 netdev_err(bp->dev, "hwrm alloc invalid ring type %d\n", 4018 ring_type); 4019 return -1; 4020 } 4021 4022 mutex_lock(&bp->hwrm_cmd_lock); 4023 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4024 err = le16_to_cpu(resp->error_code); 4025 ring_id = le16_to_cpu(resp->ring_id); 4026 mutex_unlock(&bp->hwrm_cmd_lock); 4027 4028 if (rc || err) { 4029 switch (ring_type) { 4030 case RING_FREE_REQ_RING_TYPE_L2_CMPL: 4031 netdev_err(bp->dev, "hwrm_ring_alloc cp failed. rc:%x err:%x\n", 4032 rc, err); 4033 return -1; 4034 4035 case RING_FREE_REQ_RING_TYPE_RX: 4036 netdev_err(bp->dev, "hwrm_ring_alloc rx failed. rc:%x err:%x\n", 4037 rc, err); 4038 return -1; 4039 4040 case RING_FREE_REQ_RING_TYPE_TX: 4041 netdev_err(bp->dev, "hwrm_ring_alloc tx failed. rc:%x err:%x\n", 4042 rc, err); 4043 return -1; 4044 4045 default: 4046 netdev_err(bp->dev, "Invalid ring\n"); 4047 return -1; 4048 } 4049 } 4050 ring->fw_ring_id = ring_id; 4051 return rc; 4052 } 4053 4054 static int bnxt_hwrm_set_async_event_cr(struct bnxt *bp, int idx) 4055 { 4056 int rc; 4057 4058 if (BNXT_PF(bp)) { 4059 struct hwrm_func_cfg_input req = {0}; 4060 4061 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1); 4062 req.fid = cpu_to_le16(0xffff); 4063 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR); 4064 req.async_event_cr = cpu_to_le16(idx); 4065 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4066 } else { 4067 struct hwrm_func_vf_cfg_input req = {0}; 4068 4069 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_VF_CFG, -1, -1); 4070 req.enables = 4071 cpu_to_le32(FUNC_VF_CFG_REQ_ENABLES_ASYNC_EVENT_CR); 4072 req.async_event_cr = cpu_to_le16(idx); 4073 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4074 } 4075 return rc; 4076 } 4077 4078 static int bnxt_hwrm_ring_alloc(struct bnxt *bp) 4079 { 4080 int i, rc = 0; 4081 4082 for (i = 0; i < bp->cp_nr_rings; i++) { 4083 struct bnxt_napi *bnapi = bp->bnapi[i]; 4084 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4085 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 4086 4087 cpr->cp_doorbell = bp->bar1 + i * 0x80; 4088 rc = hwrm_ring_alloc_send_msg(bp, ring, HWRM_RING_ALLOC_CMPL, i, 4089 INVALID_STATS_CTX_ID); 4090 if (rc) 4091 goto err_out; 4092 BNXT_CP_DB(cpr->cp_doorbell, cpr->cp_raw_cons); 4093 bp->grp_info[i].cp_fw_ring_id = ring->fw_ring_id; 4094 4095 if (!i) { 4096 rc = bnxt_hwrm_set_async_event_cr(bp, ring->fw_ring_id); 4097 if (rc) 4098 netdev_warn(bp->dev, "Failed to set async event completion ring.\n"); 4099 } 4100 } 4101 4102 for (i = 0; i < bp->tx_nr_rings; i++) { 4103 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 4104 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 4105 u32 map_idx = txr->bnapi->index; 4106 u16 fw_stats_ctx = bp->grp_info[map_idx].fw_stats_ctx; 4107 4108 rc = hwrm_ring_alloc_send_msg(bp, ring, HWRM_RING_ALLOC_TX, 4109 map_idx, fw_stats_ctx); 4110 if (rc) 4111 goto err_out; 4112 txr->tx_doorbell = bp->bar1 + map_idx * 0x80; 4113 } 4114 4115 for (i = 0; i < bp->rx_nr_rings; i++) { 4116 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 4117 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; 4118 u32 map_idx = rxr->bnapi->index; 4119 4120 rc = hwrm_ring_alloc_send_msg(bp, ring, HWRM_RING_ALLOC_RX, 4121 map_idx, INVALID_STATS_CTX_ID); 4122 if (rc) 4123 goto err_out; 4124 rxr->rx_doorbell = bp->bar1 + map_idx * 0x80; 4125 writel(DB_KEY_RX | rxr->rx_prod, rxr->rx_doorbell); 4126 bp->grp_info[map_idx].rx_fw_ring_id = ring->fw_ring_id; 4127 } 4128 4129 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 4130 for (i = 0; i < bp->rx_nr_rings; i++) { 4131 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 4132 struct bnxt_ring_struct *ring = 4133 &rxr->rx_agg_ring_struct; 4134 u32 grp_idx = rxr->bnapi->index; 4135 u32 map_idx = grp_idx + bp->rx_nr_rings; 4136 4137 rc = hwrm_ring_alloc_send_msg(bp, ring, 4138 HWRM_RING_ALLOC_AGG, 4139 map_idx, 4140 INVALID_STATS_CTX_ID); 4141 if (rc) 4142 goto err_out; 4143 4144 rxr->rx_agg_doorbell = bp->bar1 + map_idx * 0x80; 4145 writel(DB_KEY_RX | rxr->rx_agg_prod, 4146 rxr->rx_agg_doorbell); 4147 bp->grp_info[grp_idx].agg_fw_ring_id = ring->fw_ring_id; 4148 } 4149 } 4150 err_out: 4151 return rc; 4152 } 4153 4154 static int hwrm_ring_free_send_msg(struct bnxt *bp, 4155 struct bnxt_ring_struct *ring, 4156 u32 ring_type, int cmpl_ring_id) 4157 { 4158 int rc; 4159 struct hwrm_ring_free_input req = {0}; 4160 struct hwrm_ring_free_output *resp = bp->hwrm_cmd_resp_addr; 4161 u16 error_code; 4162 4163 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_RING_FREE, cmpl_ring_id, -1); 4164 req.ring_type = ring_type; 4165 req.ring_id = cpu_to_le16(ring->fw_ring_id); 4166 4167 mutex_lock(&bp->hwrm_cmd_lock); 4168 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4169 error_code = le16_to_cpu(resp->error_code); 4170 mutex_unlock(&bp->hwrm_cmd_lock); 4171 4172 if (rc || error_code) { 4173 switch (ring_type) { 4174 case RING_FREE_REQ_RING_TYPE_L2_CMPL: 4175 netdev_err(bp->dev, "hwrm_ring_free cp failed. rc:%d\n", 4176 rc); 4177 return rc; 4178 case RING_FREE_REQ_RING_TYPE_RX: 4179 netdev_err(bp->dev, "hwrm_ring_free rx failed. rc:%d\n", 4180 rc); 4181 return rc; 4182 case RING_FREE_REQ_RING_TYPE_TX: 4183 netdev_err(bp->dev, "hwrm_ring_free tx failed. rc:%d\n", 4184 rc); 4185 return rc; 4186 default: 4187 netdev_err(bp->dev, "Invalid ring\n"); 4188 return -1; 4189 } 4190 } 4191 return 0; 4192 } 4193 4194 static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path) 4195 { 4196 int i; 4197 4198 if (!bp->bnapi) 4199 return; 4200 4201 for (i = 0; i < bp->tx_nr_rings; i++) { 4202 struct bnxt_tx_ring_info *txr = &bp->tx_ring[i]; 4203 struct bnxt_ring_struct *ring = &txr->tx_ring_struct; 4204 u32 grp_idx = txr->bnapi->index; 4205 u32 cmpl_ring_id = bp->grp_info[grp_idx].cp_fw_ring_id; 4206 4207 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 4208 hwrm_ring_free_send_msg(bp, ring, 4209 RING_FREE_REQ_RING_TYPE_TX, 4210 close_path ? cmpl_ring_id : 4211 INVALID_HW_RING_ID); 4212 ring->fw_ring_id = INVALID_HW_RING_ID; 4213 } 4214 } 4215 4216 for (i = 0; i < bp->rx_nr_rings; i++) { 4217 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 4218 struct bnxt_ring_struct *ring = &rxr->rx_ring_struct; 4219 u32 grp_idx = rxr->bnapi->index; 4220 u32 cmpl_ring_id = bp->grp_info[grp_idx].cp_fw_ring_id; 4221 4222 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 4223 hwrm_ring_free_send_msg(bp, ring, 4224 RING_FREE_REQ_RING_TYPE_RX, 4225 close_path ? cmpl_ring_id : 4226 INVALID_HW_RING_ID); 4227 ring->fw_ring_id = INVALID_HW_RING_ID; 4228 bp->grp_info[grp_idx].rx_fw_ring_id = 4229 INVALID_HW_RING_ID; 4230 } 4231 } 4232 4233 for (i = 0; i < bp->rx_nr_rings; i++) { 4234 struct bnxt_rx_ring_info *rxr = &bp->rx_ring[i]; 4235 struct bnxt_ring_struct *ring = &rxr->rx_agg_ring_struct; 4236 u32 grp_idx = rxr->bnapi->index; 4237 u32 cmpl_ring_id = bp->grp_info[grp_idx].cp_fw_ring_id; 4238 4239 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 4240 hwrm_ring_free_send_msg(bp, ring, 4241 RING_FREE_REQ_RING_TYPE_RX, 4242 close_path ? cmpl_ring_id : 4243 INVALID_HW_RING_ID); 4244 ring->fw_ring_id = INVALID_HW_RING_ID; 4245 bp->grp_info[grp_idx].agg_fw_ring_id = 4246 INVALID_HW_RING_ID; 4247 } 4248 } 4249 4250 /* The completion rings are about to be freed. After that the 4251 * IRQ doorbell will not work anymore. So we need to disable 4252 * IRQ here. 4253 */ 4254 bnxt_disable_int_sync(bp); 4255 4256 for (i = 0; i < bp->cp_nr_rings; i++) { 4257 struct bnxt_napi *bnapi = bp->bnapi[i]; 4258 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4259 struct bnxt_ring_struct *ring = &cpr->cp_ring_struct; 4260 4261 if (ring->fw_ring_id != INVALID_HW_RING_ID) { 4262 hwrm_ring_free_send_msg(bp, ring, 4263 RING_FREE_REQ_RING_TYPE_L2_CMPL, 4264 INVALID_HW_RING_ID); 4265 ring->fw_ring_id = INVALID_HW_RING_ID; 4266 bp->grp_info[i].cp_fw_ring_id = INVALID_HW_RING_ID; 4267 } 4268 } 4269 } 4270 4271 /* Caller must hold bp->hwrm_cmd_lock */ 4272 int __bnxt_hwrm_get_tx_rings(struct bnxt *bp, u16 fid, int *tx_rings) 4273 { 4274 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr; 4275 struct hwrm_func_qcfg_input req = {0}; 4276 int rc; 4277 4278 if (bp->hwrm_spec_code < 0x10601) 4279 return 0; 4280 4281 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1); 4282 req.fid = cpu_to_le16(fid); 4283 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4284 if (!rc) 4285 *tx_rings = le16_to_cpu(resp->alloc_tx_rings); 4286 4287 return rc; 4288 } 4289 4290 static int bnxt_hwrm_reserve_tx_rings(struct bnxt *bp, int *tx_rings) 4291 { 4292 struct hwrm_func_cfg_input req = {0}; 4293 int rc; 4294 4295 if (bp->hwrm_spec_code < 0x10601) 4296 return 0; 4297 4298 if (BNXT_VF(bp)) 4299 return 0; 4300 4301 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_CFG, -1, -1); 4302 req.fid = cpu_to_le16(0xffff); 4303 req.enables = cpu_to_le32(FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS); 4304 req.num_tx_rings = cpu_to_le16(*tx_rings); 4305 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4306 if (rc) 4307 return rc; 4308 4309 mutex_lock(&bp->hwrm_cmd_lock); 4310 rc = __bnxt_hwrm_get_tx_rings(bp, 0xffff, tx_rings); 4311 mutex_unlock(&bp->hwrm_cmd_lock); 4312 return rc; 4313 } 4314 4315 static void bnxt_hwrm_set_coal_params(struct bnxt *bp, u32 max_bufs, 4316 u32 buf_tmrs, u16 flags, 4317 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req) 4318 { 4319 req->flags = cpu_to_le16(flags); 4320 req->num_cmpl_dma_aggr = cpu_to_le16((u16)max_bufs); 4321 req->num_cmpl_dma_aggr_during_int = cpu_to_le16(max_bufs >> 16); 4322 req->cmpl_aggr_dma_tmr = cpu_to_le16((u16)buf_tmrs); 4323 req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(buf_tmrs >> 16); 4324 /* Minimum time between 2 interrupts set to buf_tmr x 2 */ 4325 req->int_lat_tmr_min = cpu_to_le16((u16)buf_tmrs * 2); 4326 req->int_lat_tmr_max = cpu_to_le16((u16)buf_tmrs * 4); 4327 req->num_cmpl_aggr_int = cpu_to_le16((u16)max_bufs * 4); 4328 } 4329 4330 int bnxt_hwrm_set_coal(struct bnxt *bp) 4331 { 4332 int i, rc = 0; 4333 struct hwrm_ring_cmpl_ring_cfg_aggint_params_input req_rx = {0}, 4334 req_tx = {0}, *req; 4335 u16 max_buf, max_buf_irq; 4336 u16 buf_tmr, buf_tmr_irq; 4337 u32 flags; 4338 4339 bnxt_hwrm_cmd_hdr_init(bp, &req_rx, 4340 HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS, -1, -1); 4341 bnxt_hwrm_cmd_hdr_init(bp, &req_tx, 4342 HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS, -1, -1); 4343 4344 /* Each rx completion (2 records) should be DMAed immediately. 4345 * DMA 1/4 of the completion buffers at a time. 4346 */ 4347 max_buf = min_t(u16, bp->rx_coal_bufs / 4, 2); 4348 /* max_buf must not be zero */ 4349 max_buf = clamp_t(u16, max_buf, 1, 63); 4350 max_buf_irq = clamp_t(u16, bp->rx_coal_bufs_irq, 1, 63); 4351 buf_tmr = BNXT_USEC_TO_COAL_TIMER(bp->rx_coal_ticks); 4352 /* buf timer set to 1/4 of interrupt timer */ 4353 buf_tmr = max_t(u16, buf_tmr / 4, 1); 4354 buf_tmr_irq = BNXT_USEC_TO_COAL_TIMER(bp->rx_coal_ticks_irq); 4355 buf_tmr_irq = max_t(u16, buf_tmr_irq, 1); 4356 4357 flags = RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET; 4358 4359 /* RING_IDLE generates more IRQs for lower latency. Enable it only 4360 * if coal_ticks is less than 25 us. 4361 */ 4362 if (bp->rx_coal_ticks < 25) 4363 flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE; 4364 4365 bnxt_hwrm_set_coal_params(bp, max_buf_irq << 16 | max_buf, 4366 buf_tmr_irq << 16 | buf_tmr, flags, &req_rx); 4367 4368 /* max_buf must not be zero */ 4369 max_buf = clamp_t(u16, bp->tx_coal_bufs, 1, 63); 4370 max_buf_irq = clamp_t(u16, bp->tx_coal_bufs_irq, 1, 63); 4371 buf_tmr = BNXT_USEC_TO_COAL_TIMER(bp->tx_coal_ticks); 4372 /* buf timer set to 1/4 of interrupt timer */ 4373 buf_tmr = max_t(u16, buf_tmr / 4, 1); 4374 buf_tmr_irq = BNXT_USEC_TO_COAL_TIMER(bp->tx_coal_ticks_irq); 4375 buf_tmr_irq = max_t(u16, buf_tmr_irq, 1); 4376 4377 flags = RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_TIMER_RESET; 4378 bnxt_hwrm_set_coal_params(bp, max_buf_irq << 16 | max_buf, 4379 buf_tmr_irq << 16 | buf_tmr, flags, &req_tx); 4380 4381 mutex_lock(&bp->hwrm_cmd_lock); 4382 for (i = 0; i < bp->cp_nr_rings; i++) { 4383 struct bnxt_napi *bnapi = bp->bnapi[i]; 4384 4385 req = &req_rx; 4386 if (!bnapi->rx_ring) 4387 req = &req_tx; 4388 req->ring_id = cpu_to_le16(bp->grp_info[i].cp_fw_ring_id); 4389 4390 rc = _hwrm_send_message(bp, req, sizeof(*req), 4391 HWRM_CMD_TIMEOUT); 4392 if (rc) 4393 break; 4394 } 4395 mutex_unlock(&bp->hwrm_cmd_lock); 4396 return rc; 4397 } 4398 4399 static int bnxt_hwrm_stat_ctx_free(struct bnxt *bp) 4400 { 4401 int rc = 0, i; 4402 struct hwrm_stat_ctx_free_input req = {0}; 4403 4404 if (!bp->bnapi) 4405 return 0; 4406 4407 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 4408 return 0; 4409 4410 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_FREE, -1, -1); 4411 4412 mutex_lock(&bp->hwrm_cmd_lock); 4413 for (i = 0; i < bp->cp_nr_rings; i++) { 4414 struct bnxt_napi *bnapi = bp->bnapi[i]; 4415 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4416 4417 if (cpr->hw_stats_ctx_id != INVALID_STATS_CTX_ID) { 4418 req.stat_ctx_id = cpu_to_le32(cpr->hw_stats_ctx_id); 4419 4420 rc = _hwrm_send_message(bp, &req, sizeof(req), 4421 HWRM_CMD_TIMEOUT); 4422 if (rc) 4423 break; 4424 4425 cpr->hw_stats_ctx_id = INVALID_STATS_CTX_ID; 4426 } 4427 } 4428 mutex_unlock(&bp->hwrm_cmd_lock); 4429 return rc; 4430 } 4431 4432 static int bnxt_hwrm_stat_ctx_alloc(struct bnxt *bp) 4433 { 4434 int rc = 0, i; 4435 struct hwrm_stat_ctx_alloc_input req = {0}; 4436 struct hwrm_stat_ctx_alloc_output *resp = bp->hwrm_cmd_resp_addr; 4437 4438 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 4439 return 0; 4440 4441 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_STAT_CTX_ALLOC, -1, -1); 4442 4443 req.update_period_ms = cpu_to_le32(bp->stats_coal_ticks / 1000); 4444 4445 mutex_lock(&bp->hwrm_cmd_lock); 4446 for (i = 0; i < bp->cp_nr_rings; i++) { 4447 struct bnxt_napi *bnapi = bp->bnapi[i]; 4448 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 4449 4450 req.stats_dma_addr = cpu_to_le64(cpr->hw_stats_map); 4451 4452 rc = _hwrm_send_message(bp, &req, sizeof(req), 4453 HWRM_CMD_TIMEOUT); 4454 if (rc) 4455 break; 4456 4457 cpr->hw_stats_ctx_id = le32_to_cpu(resp->stat_ctx_id); 4458 4459 bp->grp_info[i].fw_stats_ctx = cpr->hw_stats_ctx_id; 4460 } 4461 mutex_unlock(&bp->hwrm_cmd_lock); 4462 return rc; 4463 } 4464 4465 static int bnxt_hwrm_func_qcfg(struct bnxt *bp) 4466 { 4467 struct hwrm_func_qcfg_input req = {0}; 4468 struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr; 4469 int rc; 4470 4471 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCFG, -1, -1); 4472 req.fid = cpu_to_le16(0xffff); 4473 mutex_lock(&bp->hwrm_cmd_lock); 4474 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4475 if (rc) 4476 goto func_qcfg_exit; 4477 4478 #ifdef CONFIG_BNXT_SRIOV 4479 if (BNXT_VF(bp)) { 4480 struct bnxt_vf_info *vf = &bp->vf; 4481 4482 vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK; 4483 } 4484 #endif 4485 if (BNXT_PF(bp) && (le16_to_cpu(resp->flags) & 4486 FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED)) 4487 bp->flags |= BNXT_FLAG_FW_LLDP_AGENT; 4488 4489 switch (resp->port_partition_type) { 4490 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0: 4491 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5: 4492 case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR2_0: 4493 bp->port_partition_type = resp->port_partition_type; 4494 break; 4495 } 4496 4497 func_qcfg_exit: 4498 mutex_unlock(&bp->hwrm_cmd_lock); 4499 return rc; 4500 } 4501 4502 static int bnxt_hwrm_func_qcaps(struct bnxt *bp) 4503 { 4504 int rc = 0; 4505 struct hwrm_func_qcaps_input req = {0}; 4506 struct hwrm_func_qcaps_output *resp = bp->hwrm_cmd_resp_addr; 4507 4508 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_QCAPS, -1, -1); 4509 req.fid = cpu_to_le16(0xffff); 4510 4511 mutex_lock(&bp->hwrm_cmd_lock); 4512 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4513 if (rc) 4514 goto hwrm_func_qcaps_exit; 4515 4516 if (resp->flags & cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_ROCE_V1_SUPPORTED)) 4517 bp->flags |= BNXT_FLAG_ROCEV1_CAP; 4518 if (resp->flags & cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_ROCE_V2_SUPPORTED)) 4519 bp->flags |= BNXT_FLAG_ROCEV2_CAP; 4520 4521 bp->tx_push_thresh = 0; 4522 if (resp->flags & 4523 cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_PUSH_MODE_SUPPORTED)) 4524 bp->tx_push_thresh = BNXT_TX_PUSH_THRESH; 4525 4526 if (BNXT_PF(bp)) { 4527 struct bnxt_pf_info *pf = &bp->pf; 4528 4529 pf->fw_fid = le16_to_cpu(resp->fid); 4530 pf->port_id = le16_to_cpu(resp->port_id); 4531 bp->dev->dev_port = pf->port_id; 4532 memcpy(pf->mac_addr, resp->mac_address, ETH_ALEN); 4533 memcpy(bp->dev->dev_addr, pf->mac_addr, ETH_ALEN); 4534 pf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); 4535 pf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); 4536 pf->max_tx_rings = le16_to_cpu(resp->max_tx_rings); 4537 pf->max_rx_rings = le16_to_cpu(resp->max_rx_rings); 4538 pf->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps); 4539 if (!pf->max_hw_ring_grps) 4540 pf->max_hw_ring_grps = pf->max_tx_rings; 4541 pf->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); 4542 pf->max_vnics = le16_to_cpu(resp->max_vnics); 4543 pf->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); 4544 pf->first_vf_id = le16_to_cpu(resp->first_vf_id); 4545 pf->max_vfs = le16_to_cpu(resp->max_vfs); 4546 pf->max_encap_records = le32_to_cpu(resp->max_encap_records); 4547 pf->max_decap_records = le32_to_cpu(resp->max_decap_records); 4548 pf->max_tx_em_flows = le32_to_cpu(resp->max_tx_em_flows); 4549 pf->max_tx_wm_flows = le32_to_cpu(resp->max_tx_wm_flows); 4550 pf->max_rx_em_flows = le32_to_cpu(resp->max_rx_em_flows); 4551 pf->max_rx_wm_flows = le32_to_cpu(resp->max_rx_wm_flows); 4552 if (resp->flags & 4553 cpu_to_le32(FUNC_QCAPS_RESP_FLAGS_WOL_MAGICPKT_SUPPORTED)) 4554 bp->flags |= BNXT_FLAG_WOL_CAP; 4555 } else { 4556 #ifdef CONFIG_BNXT_SRIOV 4557 struct bnxt_vf_info *vf = &bp->vf; 4558 4559 vf->fw_fid = le16_to_cpu(resp->fid); 4560 4561 vf->max_rsscos_ctxs = le16_to_cpu(resp->max_rsscos_ctx); 4562 vf->max_cp_rings = le16_to_cpu(resp->max_cmpl_rings); 4563 vf->max_tx_rings = le16_to_cpu(resp->max_tx_rings); 4564 vf->max_rx_rings = le16_to_cpu(resp->max_rx_rings); 4565 vf->max_hw_ring_grps = le32_to_cpu(resp->max_hw_ring_grps); 4566 if (!vf->max_hw_ring_grps) 4567 vf->max_hw_ring_grps = vf->max_tx_rings; 4568 vf->max_l2_ctxs = le16_to_cpu(resp->max_l2_ctxs); 4569 vf->max_vnics = le16_to_cpu(resp->max_vnics); 4570 vf->max_stat_ctxs = le16_to_cpu(resp->max_stat_ctx); 4571 4572 memcpy(vf->mac_addr, resp->mac_address, ETH_ALEN); 4573 mutex_unlock(&bp->hwrm_cmd_lock); 4574 4575 if (is_valid_ether_addr(vf->mac_addr)) { 4576 /* overwrite netdev dev_adr with admin VF MAC */ 4577 memcpy(bp->dev->dev_addr, vf->mac_addr, ETH_ALEN); 4578 } else { 4579 eth_hw_addr_random(bp->dev); 4580 rc = bnxt_approve_mac(bp, bp->dev->dev_addr); 4581 } 4582 return rc; 4583 #endif 4584 } 4585 4586 hwrm_func_qcaps_exit: 4587 mutex_unlock(&bp->hwrm_cmd_lock); 4588 return rc; 4589 } 4590 4591 static int bnxt_hwrm_func_reset(struct bnxt *bp) 4592 { 4593 struct hwrm_func_reset_input req = {0}; 4594 4595 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FUNC_RESET, -1, -1); 4596 req.enables = 0; 4597 4598 return hwrm_send_message(bp, &req, sizeof(req), HWRM_RESET_TIMEOUT); 4599 } 4600 4601 static int bnxt_hwrm_queue_qportcfg(struct bnxt *bp) 4602 { 4603 int rc = 0; 4604 struct hwrm_queue_qportcfg_input req = {0}; 4605 struct hwrm_queue_qportcfg_output *resp = bp->hwrm_cmd_resp_addr; 4606 u8 i, *qptr; 4607 4608 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_QPORTCFG, -1, -1); 4609 4610 mutex_lock(&bp->hwrm_cmd_lock); 4611 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4612 if (rc) 4613 goto qportcfg_exit; 4614 4615 if (!resp->max_configurable_queues) { 4616 rc = -EINVAL; 4617 goto qportcfg_exit; 4618 } 4619 bp->max_tc = resp->max_configurable_queues; 4620 bp->max_lltc = resp->max_configurable_lossless_queues; 4621 if (bp->max_tc > BNXT_MAX_QUEUE) 4622 bp->max_tc = BNXT_MAX_QUEUE; 4623 4624 if (resp->queue_cfg_info & QUEUE_QPORTCFG_RESP_QUEUE_CFG_INFO_ASYM_CFG) 4625 bp->max_tc = 1; 4626 4627 if (bp->max_lltc > bp->max_tc) 4628 bp->max_lltc = bp->max_tc; 4629 4630 qptr = &resp->queue_id0; 4631 for (i = 0; i < bp->max_tc; i++) { 4632 bp->q_info[i].queue_id = *qptr++; 4633 bp->q_info[i].queue_profile = *qptr++; 4634 } 4635 4636 qportcfg_exit: 4637 mutex_unlock(&bp->hwrm_cmd_lock); 4638 return rc; 4639 } 4640 4641 static int bnxt_hwrm_ver_get(struct bnxt *bp) 4642 { 4643 int rc; 4644 struct hwrm_ver_get_input req = {0}; 4645 struct hwrm_ver_get_output *resp = bp->hwrm_cmd_resp_addr; 4646 4647 bp->hwrm_max_req_len = HWRM_MAX_REQ_LEN; 4648 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_VER_GET, -1, -1); 4649 req.hwrm_intf_maj = HWRM_VERSION_MAJOR; 4650 req.hwrm_intf_min = HWRM_VERSION_MINOR; 4651 req.hwrm_intf_upd = HWRM_VERSION_UPDATE; 4652 mutex_lock(&bp->hwrm_cmd_lock); 4653 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4654 if (rc) 4655 goto hwrm_ver_get_exit; 4656 4657 memcpy(&bp->ver_resp, resp, sizeof(struct hwrm_ver_get_output)); 4658 4659 bp->hwrm_spec_code = resp->hwrm_intf_maj << 16 | 4660 resp->hwrm_intf_min << 8 | resp->hwrm_intf_upd; 4661 if (resp->hwrm_intf_maj < 1) { 4662 netdev_warn(bp->dev, "HWRM interface %d.%d.%d is older than 1.0.0.\n", 4663 resp->hwrm_intf_maj, resp->hwrm_intf_min, 4664 resp->hwrm_intf_upd); 4665 netdev_warn(bp->dev, "Please update firmware with HWRM interface 1.0.0 or newer.\n"); 4666 } 4667 snprintf(bp->fw_ver_str, BC_HWRM_STR_LEN, "%d.%d.%d/%d.%d.%d", 4668 resp->hwrm_fw_maj, resp->hwrm_fw_min, resp->hwrm_fw_bld, 4669 resp->hwrm_intf_maj, resp->hwrm_intf_min, resp->hwrm_intf_upd); 4670 4671 bp->hwrm_cmd_timeout = le16_to_cpu(resp->def_req_timeout); 4672 if (!bp->hwrm_cmd_timeout) 4673 bp->hwrm_cmd_timeout = DFLT_HWRM_CMD_TIMEOUT; 4674 4675 if (resp->hwrm_intf_maj >= 1) 4676 bp->hwrm_max_req_len = le16_to_cpu(resp->max_req_win_len); 4677 4678 bp->chip_num = le16_to_cpu(resp->chip_num); 4679 if (bp->chip_num == CHIP_NUM_58700 && !resp->chip_rev && 4680 !resp->chip_metal) 4681 bp->flags |= BNXT_FLAG_CHIP_NITRO_A0; 4682 4683 hwrm_ver_get_exit: 4684 mutex_unlock(&bp->hwrm_cmd_lock); 4685 return rc; 4686 } 4687 4688 int bnxt_hwrm_fw_set_time(struct bnxt *bp) 4689 { 4690 #if IS_ENABLED(CONFIG_RTC_LIB) 4691 struct hwrm_fw_set_time_input req = {0}; 4692 struct rtc_time tm; 4693 struct timeval tv; 4694 4695 if (bp->hwrm_spec_code < 0x10400) 4696 return -EOPNOTSUPP; 4697 4698 do_gettimeofday(&tv); 4699 rtc_time_to_tm(tv.tv_sec, &tm); 4700 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_FW_SET_TIME, -1, -1); 4701 req.year = cpu_to_le16(1900 + tm.tm_year); 4702 req.month = 1 + tm.tm_mon; 4703 req.day = tm.tm_mday; 4704 req.hour = tm.tm_hour; 4705 req.minute = tm.tm_min; 4706 req.second = tm.tm_sec; 4707 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4708 #else 4709 return -EOPNOTSUPP; 4710 #endif 4711 } 4712 4713 static int bnxt_hwrm_port_qstats(struct bnxt *bp) 4714 { 4715 int rc; 4716 struct bnxt_pf_info *pf = &bp->pf; 4717 struct hwrm_port_qstats_input req = {0}; 4718 4719 if (!(bp->flags & BNXT_FLAG_PORT_STATS)) 4720 return 0; 4721 4722 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_QSTATS, -1, -1); 4723 req.port_id = cpu_to_le16(pf->port_id); 4724 req.tx_stat_host_addr = cpu_to_le64(bp->hw_tx_port_stats_map); 4725 req.rx_stat_host_addr = cpu_to_le64(bp->hw_rx_port_stats_map); 4726 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 4727 return rc; 4728 } 4729 4730 static void bnxt_hwrm_free_tunnel_ports(struct bnxt *bp) 4731 { 4732 if (bp->vxlan_port_cnt) { 4733 bnxt_hwrm_tunnel_dst_port_free( 4734 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN); 4735 } 4736 bp->vxlan_port_cnt = 0; 4737 if (bp->nge_port_cnt) { 4738 bnxt_hwrm_tunnel_dst_port_free( 4739 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE); 4740 } 4741 bp->nge_port_cnt = 0; 4742 } 4743 4744 static int bnxt_set_tpa(struct bnxt *bp, bool set_tpa) 4745 { 4746 int rc, i; 4747 u32 tpa_flags = 0; 4748 4749 if (set_tpa) 4750 tpa_flags = bp->flags & BNXT_FLAG_TPA; 4751 for (i = 0; i < bp->nr_vnics; i++) { 4752 rc = bnxt_hwrm_vnic_set_tpa(bp, i, tpa_flags); 4753 if (rc) { 4754 netdev_err(bp->dev, "hwrm vnic set tpa failure rc for vnic %d: %x\n", 4755 i, rc); 4756 return rc; 4757 } 4758 } 4759 return 0; 4760 } 4761 4762 static void bnxt_hwrm_clear_vnic_rss(struct bnxt *bp) 4763 { 4764 int i; 4765 4766 for (i = 0; i < bp->nr_vnics; i++) 4767 bnxt_hwrm_vnic_set_rss(bp, i, false); 4768 } 4769 4770 static void bnxt_hwrm_resource_free(struct bnxt *bp, bool close_path, 4771 bool irq_re_init) 4772 { 4773 if (bp->vnic_info) { 4774 bnxt_hwrm_clear_vnic_filter(bp); 4775 /* clear all RSS setting before free vnic ctx */ 4776 bnxt_hwrm_clear_vnic_rss(bp); 4777 bnxt_hwrm_vnic_ctx_free(bp); 4778 /* before free the vnic, undo the vnic tpa settings */ 4779 if (bp->flags & BNXT_FLAG_TPA) 4780 bnxt_set_tpa(bp, false); 4781 bnxt_hwrm_vnic_free(bp); 4782 } 4783 bnxt_hwrm_ring_free(bp, close_path); 4784 bnxt_hwrm_ring_grp_free(bp); 4785 if (irq_re_init) { 4786 bnxt_hwrm_stat_ctx_free(bp); 4787 bnxt_hwrm_free_tunnel_ports(bp); 4788 } 4789 } 4790 4791 static int bnxt_setup_vnic(struct bnxt *bp, u16 vnic_id) 4792 { 4793 struct bnxt_vnic_info *vnic = &bp->vnic_info[vnic_id]; 4794 int rc; 4795 4796 if (vnic->flags & BNXT_VNIC_RFS_NEW_RSS_FLAG) 4797 goto skip_rss_ctx; 4798 4799 /* allocate context for vnic */ 4800 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 0); 4801 if (rc) { 4802 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", 4803 vnic_id, rc); 4804 goto vnic_setup_err; 4805 } 4806 bp->rsscos_nr_ctxs++; 4807 4808 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 4809 rc = bnxt_hwrm_vnic_ctx_alloc(bp, vnic_id, 1); 4810 if (rc) { 4811 netdev_err(bp->dev, "hwrm vnic %d cos ctx alloc failure rc: %x\n", 4812 vnic_id, rc); 4813 goto vnic_setup_err; 4814 } 4815 bp->rsscos_nr_ctxs++; 4816 } 4817 4818 skip_rss_ctx: 4819 /* configure default vnic, ring grp */ 4820 rc = bnxt_hwrm_vnic_cfg(bp, vnic_id); 4821 if (rc) { 4822 netdev_err(bp->dev, "hwrm vnic %d cfg failure rc: %x\n", 4823 vnic_id, rc); 4824 goto vnic_setup_err; 4825 } 4826 4827 /* Enable RSS hashing on vnic */ 4828 rc = bnxt_hwrm_vnic_set_rss(bp, vnic_id, true); 4829 if (rc) { 4830 netdev_err(bp->dev, "hwrm vnic %d set rss failure rc: %x\n", 4831 vnic_id, rc); 4832 goto vnic_setup_err; 4833 } 4834 4835 if (bp->flags & BNXT_FLAG_AGG_RINGS) { 4836 rc = bnxt_hwrm_vnic_set_hds(bp, vnic_id); 4837 if (rc) { 4838 netdev_err(bp->dev, "hwrm vnic %d set hds failure rc: %x\n", 4839 vnic_id, rc); 4840 } 4841 } 4842 4843 vnic_setup_err: 4844 return rc; 4845 } 4846 4847 static int bnxt_alloc_rfs_vnics(struct bnxt *bp) 4848 { 4849 #ifdef CONFIG_RFS_ACCEL 4850 int i, rc = 0; 4851 4852 for (i = 0; i < bp->rx_nr_rings; i++) { 4853 struct bnxt_vnic_info *vnic; 4854 u16 vnic_id = i + 1; 4855 u16 ring_id = i; 4856 4857 if (vnic_id >= bp->nr_vnics) 4858 break; 4859 4860 vnic = &bp->vnic_info[vnic_id]; 4861 vnic->flags |= BNXT_VNIC_RFS_FLAG; 4862 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) 4863 vnic->flags |= BNXT_VNIC_RFS_NEW_RSS_FLAG; 4864 rc = bnxt_hwrm_vnic_alloc(bp, vnic_id, ring_id, 1); 4865 if (rc) { 4866 netdev_err(bp->dev, "hwrm vnic %d alloc failure rc: %x\n", 4867 vnic_id, rc); 4868 break; 4869 } 4870 rc = bnxt_setup_vnic(bp, vnic_id); 4871 if (rc) 4872 break; 4873 } 4874 return rc; 4875 #else 4876 return 0; 4877 #endif 4878 } 4879 4880 /* Allow PF and VF with default VLAN to be in promiscuous mode */ 4881 static bool bnxt_promisc_ok(struct bnxt *bp) 4882 { 4883 #ifdef CONFIG_BNXT_SRIOV 4884 if (BNXT_VF(bp) && !bp->vf.vlan) 4885 return false; 4886 #endif 4887 return true; 4888 } 4889 4890 static int bnxt_setup_nitroa0_vnic(struct bnxt *bp) 4891 { 4892 unsigned int rc = 0; 4893 4894 rc = bnxt_hwrm_vnic_alloc(bp, 1, bp->rx_nr_rings - 1, 1); 4895 if (rc) { 4896 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", 4897 rc); 4898 return rc; 4899 } 4900 4901 rc = bnxt_hwrm_vnic_cfg(bp, 1); 4902 if (rc) { 4903 netdev_err(bp->dev, "Cannot allocate special vnic for NS2 A0: %x\n", 4904 rc); 4905 return rc; 4906 } 4907 return rc; 4908 } 4909 4910 static int bnxt_cfg_rx_mode(struct bnxt *); 4911 static bool bnxt_mc_list_updated(struct bnxt *, u32 *); 4912 4913 static int bnxt_init_chip(struct bnxt *bp, bool irq_re_init) 4914 { 4915 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 4916 int rc = 0; 4917 unsigned int rx_nr_rings = bp->rx_nr_rings; 4918 4919 if (irq_re_init) { 4920 rc = bnxt_hwrm_stat_ctx_alloc(bp); 4921 if (rc) { 4922 netdev_err(bp->dev, "hwrm stat ctx alloc failure rc: %x\n", 4923 rc); 4924 goto err_out; 4925 } 4926 } 4927 4928 rc = bnxt_hwrm_ring_alloc(bp); 4929 if (rc) { 4930 netdev_err(bp->dev, "hwrm ring alloc failure rc: %x\n", rc); 4931 goto err_out; 4932 } 4933 4934 rc = bnxt_hwrm_ring_grp_alloc(bp); 4935 if (rc) { 4936 netdev_err(bp->dev, "hwrm_ring_grp alloc failure: %x\n", rc); 4937 goto err_out; 4938 } 4939 4940 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 4941 rx_nr_rings--; 4942 4943 /* default vnic 0 */ 4944 rc = bnxt_hwrm_vnic_alloc(bp, 0, 0, rx_nr_rings); 4945 if (rc) { 4946 netdev_err(bp->dev, "hwrm vnic alloc failure rc: %x\n", rc); 4947 goto err_out; 4948 } 4949 4950 rc = bnxt_setup_vnic(bp, 0); 4951 if (rc) 4952 goto err_out; 4953 4954 if (bp->flags & BNXT_FLAG_RFS) { 4955 rc = bnxt_alloc_rfs_vnics(bp); 4956 if (rc) 4957 goto err_out; 4958 } 4959 4960 if (bp->flags & BNXT_FLAG_TPA) { 4961 rc = bnxt_set_tpa(bp, true); 4962 if (rc) 4963 goto err_out; 4964 } 4965 4966 if (BNXT_VF(bp)) 4967 bnxt_update_vf_mac(bp); 4968 4969 /* Filter for default vnic 0 */ 4970 rc = bnxt_hwrm_set_vnic_filter(bp, 0, 0, bp->dev->dev_addr); 4971 if (rc) { 4972 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", rc); 4973 goto err_out; 4974 } 4975 vnic->uc_filter_count = 1; 4976 4977 vnic->rx_mask = CFA_L2_SET_RX_MASK_REQ_MASK_BCAST; 4978 4979 if ((bp->dev->flags & IFF_PROMISC) && bnxt_promisc_ok(bp)) 4980 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 4981 4982 if (bp->dev->flags & IFF_ALLMULTI) { 4983 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 4984 vnic->mc_list_count = 0; 4985 } else { 4986 u32 mask = 0; 4987 4988 bnxt_mc_list_updated(bp, &mask); 4989 vnic->rx_mask |= mask; 4990 } 4991 4992 rc = bnxt_cfg_rx_mode(bp); 4993 if (rc) 4994 goto err_out; 4995 4996 rc = bnxt_hwrm_set_coal(bp); 4997 if (rc) 4998 netdev_warn(bp->dev, "HWRM set coalescing failure rc: %x\n", 4999 rc); 5000 5001 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 5002 rc = bnxt_setup_nitroa0_vnic(bp); 5003 if (rc) 5004 netdev_err(bp->dev, "Special vnic setup failure for NS2 A0 rc: %x\n", 5005 rc); 5006 } 5007 5008 if (BNXT_VF(bp)) { 5009 bnxt_hwrm_func_qcfg(bp); 5010 netdev_update_features(bp->dev); 5011 } 5012 5013 return 0; 5014 5015 err_out: 5016 bnxt_hwrm_resource_free(bp, 0, true); 5017 5018 return rc; 5019 } 5020 5021 static int bnxt_shutdown_nic(struct bnxt *bp, bool irq_re_init) 5022 { 5023 bnxt_hwrm_resource_free(bp, 1, irq_re_init); 5024 return 0; 5025 } 5026 5027 static int bnxt_init_nic(struct bnxt *bp, bool irq_re_init) 5028 { 5029 bnxt_init_cp_rings(bp); 5030 bnxt_init_rx_rings(bp); 5031 bnxt_init_tx_rings(bp); 5032 bnxt_init_ring_grps(bp, irq_re_init); 5033 bnxt_init_vnics(bp); 5034 5035 return bnxt_init_chip(bp, irq_re_init); 5036 } 5037 5038 static int bnxt_set_real_num_queues(struct bnxt *bp) 5039 { 5040 int rc; 5041 struct net_device *dev = bp->dev; 5042 5043 rc = netif_set_real_num_tx_queues(dev, bp->tx_nr_rings - 5044 bp->tx_nr_rings_xdp); 5045 if (rc) 5046 return rc; 5047 5048 rc = netif_set_real_num_rx_queues(dev, bp->rx_nr_rings); 5049 if (rc) 5050 return rc; 5051 5052 #ifdef CONFIG_RFS_ACCEL 5053 if (bp->flags & BNXT_FLAG_RFS) 5054 dev->rx_cpu_rmap = alloc_irq_cpu_rmap(bp->rx_nr_rings); 5055 #endif 5056 5057 return rc; 5058 } 5059 5060 static int bnxt_trim_rings(struct bnxt *bp, int *rx, int *tx, int max, 5061 bool shared) 5062 { 5063 int _rx = *rx, _tx = *tx; 5064 5065 if (shared) { 5066 *rx = min_t(int, _rx, max); 5067 *tx = min_t(int, _tx, max); 5068 } else { 5069 if (max < 2) 5070 return -ENOMEM; 5071 5072 while (_rx + _tx > max) { 5073 if (_rx > _tx && _rx > 1) 5074 _rx--; 5075 else if (_tx > 1) 5076 _tx--; 5077 } 5078 *rx = _rx; 5079 *tx = _tx; 5080 } 5081 return 0; 5082 } 5083 5084 static void bnxt_setup_msix(struct bnxt *bp) 5085 { 5086 const int len = sizeof(bp->irq_tbl[0].name); 5087 struct net_device *dev = bp->dev; 5088 int tcs, i; 5089 5090 tcs = netdev_get_num_tc(dev); 5091 if (tcs > 1) { 5092 int i, off, count; 5093 5094 for (i = 0; i < tcs; i++) { 5095 count = bp->tx_nr_rings_per_tc; 5096 off = i * count; 5097 netdev_set_tc_queue(dev, i, count, off); 5098 } 5099 } 5100 5101 for (i = 0; i < bp->cp_nr_rings; i++) { 5102 char *attr; 5103 5104 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 5105 attr = "TxRx"; 5106 else if (i < bp->rx_nr_rings) 5107 attr = "rx"; 5108 else 5109 attr = "tx"; 5110 5111 snprintf(bp->irq_tbl[i].name, len, "%s-%s-%d", dev->name, attr, 5112 i); 5113 bp->irq_tbl[i].handler = bnxt_msix; 5114 } 5115 } 5116 5117 static void bnxt_setup_inta(struct bnxt *bp) 5118 { 5119 const int len = sizeof(bp->irq_tbl[0].name); 5120 5121 if (netdev_get_num_tc(bp->dev)) 5122 netdev_reset_tc(bp->dev); 5123 5124 snprintf(bp->irq_tbl[0].name, len, "%s-%s-%d", bp->dev->name, "TxRx", 5125 0); 5126 bp->irq_tbl[0].handler = bnxt_inta; 5127 } 5128 5129 static int bnxt_setup_int_mode(struct bnxt *bp) 5130 { 5131 int rc; 5132 5133 if (bp->flags & BNXT_FLAG_USING_MSIX) 5134 bnxt_setup_msix(bp); 5135 else 5136 bnxt_setup_inta(bp); 5137 5138 rc = bnxt_set_real_num_queues(bp); 5139 return rc; 5140 } 5141 5142 #ifdef CONFIG_RFS_ACCEL 5143 static unsigned int bnxt_get_max_func_rss_ctxs(struct bnxt *bp) 5144 { 5145 #if defined(CONFIG_BNXT_SRIOV) 5146 if (BNXT_VF(bp)) 5147 return bp->vf.max_rsscos_ctxs; 5148 #endif 5149 return bp->pf.max_rsscos_ctxs; 5150 } 5151 5152 static unsigned int bnxt_get_max_func_vnics(struct bnxt *bp) 5153 { 5154 #if defined(CONFIG_BNXT_SRIOV) 5155 if (BNXT_VF(bp)) 5156 return bp->vf.max_vnics; 5157 #endif 5158 return bp->pf.max_vnics; 5159 } 5160 #endif 5161 5162 unsigned int bnxt_get_max_func_stat_ctxs(struct bnxt *bp) 5163 { 5164 #if defined(CONFIG_BNXT_SRIOV) 5165 if (BNXT_VF(bp)) 5166 return bp->vf.max_stat_ctxs; 5167 #endif 5168 return bp->pf.max_stat_ctxs; 5169 } 5170 5171 void bnxt_set_max_func_stat_ctxs(struct bnxt *bp, unsigned int max) 5172 { 5173 #if defined(CONFIG_BNXT_SRIOV) 5174 if (BNXT_VF(bp)) 5175 bp->vf.max_stat_ctxs = max; 5176 else 5177 #endif 5178 bp->pf.max_stat_ctxs = max; 5179 } 5180 5181 unsigned int bnxt_get_max_func_cp_rings(struct bnxt *bp) 5182 { 5183 #if defined(CONFIG_BNXT_SRIOV) 5184 if (BNXT_VF(bp)) 5185 return bp->vf.max_cp_rings; 5186 #endif 5187 return bp->pf.max_cp_rings; 5188 } 5189 5190 void bnxt_set_max_func_cp_rings(struct bnxt *bp, unsigned int max) 5191 { 5192 #if defined(CONFIG_BNXT_SRIOV) 5193 if (BNXT_VF(bp)) 5194 bp->vf.max_cp_rings = max; 5195 else 5196 #endif 5197 bp->pf.max_cp_rings = max; 5198 } 5199 5200 static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp) 5201 { 5202 #if defined(CONFIG_BNXT_SRIOV) 5203 if (BNXT_VF(bp)) 5204 return min_t(unsigned int, bp->vf.max_irqs, 5205 bp->vf.max_cp_rings); 5206 #endif 5207 return min_t(unsigned int, bp->pf.max_irqs, bp->pf.max_cp_rings); 5208 } 5209 5210 void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs) 5211 { 5212 #if defined(CONFIG_BNXT_SRIOV) 5213 if (BNXT_VF(bp)) 5214 bp->vf.max_irqs = max_irqs; 5215 else 5216 #endif 5217 bp->pf.max_irqs = max_irqs; 5218 } 5219 5220 static int bnxt_init_msix(struct bnxt *bp) 5221 { 5222 int i, total_vecs, rc = 0, min = 1; 5223 struct msix_entry *msix_ent; 5224 5225 total_vecs = bnxt_get_max_func_irqs(bp); 5226 msix_ent = kcalloc(total_vecs, sizeof(struct msix_entry), GFP_KERNEL); 5227 if (!msix_ent) 5228 return -ENOMEM; 5229 5230 for (i = 0; i < total_vecs; i++) { 5231 msix_ent[i].entry = i; 5232 msix_ent[i].vector = 0; 5233 } 5234 5235 if (!(bp->flags & BNXT_FLAG_SHARED_RINGS)) 5236 min = 2; 5237 5238 total_vecs = pci_enable_msix_range(bp->pdev, msix_ent, min, total_vecs); 5239 if (total_vecs < 0) { 5240 rc = -ENODEV; 5241 goto msix_setup_exit; 5242 } 5243 5244 bp->irq_tbl = kcalloc(total_vecs, sizeof(struct bnxt_irq), GFP_KERNEL); 5245 if (bp->irq_tbl) { 5246 for (i = 0; i < total_vecs; i++) 5247 bp->irq_tbl[i].vector = msix_ent[i].vector; 5248 5249 bp->total_irqs = total_vecs; 5250 /* Trim rings based upon num of vectors allocated */ 5251 rc = bnxt_trim_rings(bp, &bp->rx_nr_rings, &bp->tx_nr_rings, 5252 total_vecs, min == 1); 5253 if (rc) 5254 goto msix_setup_exit; 5255 5256 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 5257 bp->cp_nr_rings = (min == 1) ? 5258 max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) : 5259 bp->tx_nr_rings + bp->rx_nr_rings; 5260 5261 } else { 5262 rc = -ENOMEM; 5263 goto msix_setup_exit; 5264 } 5265 bp->flags |= BNXT_FLAG_USING_MSIX; 5266 kfree(msix_ent); 5267 return 0; 5268 5269 msix_setup_exit: 5270 netdev_err(bp->dev, "bnxt_init_msix err: %x\n", rc); 5271 kfree(bp->irq_tbl); 5272 bp->irq_tbl = NULL; 5273 pci_disable_msix(bp->pdev); 5274 kfree(msix_ent); 5275 return rc; 5276 } 5277 5278 static int bnxt_init_inta(struct bnxt *bp) 5279 { 5280 bp->irq_tbl = kcalloc(1, sizeof(struct bnxt_irq), GFP_KERNEL); 5281 if (!bp->irq_tbl) 5282 return -ENOMEM; 5283 5284 bp->total_irqs = 1; 5285 bp->rx_nr_rings = 1; 5286 bp->tx_nr_rings = 1; 5287 bp->cp_nr_rings = 1; 5288 bp->tx_nr_rings_per_tc = bp->tx_nr_rings; 5289 bp->flags |= BNXT_FLAG_SHARED_RINGS; 5290 bp->irq_tbl[0].vector = bp->pdev->irq; 5291 return 0; 5292 } 5293 5294 static int bnxt_init_int_mode(struct bnxt *bp) 5295 { 5296 int rc = 0; 5297 5298 if (bp->flags & BNXT_FLAG_MSIX_CAP) 5299 rc = bnxt_init_msix(bp); 5300 5301 if (!(bp->flags & BNXT_FLAG_USING_MSIX) && BNXT_PF(bp)) { 5302 /* fallback to INTA */ 5303 rc = bnxt_init_inta(bp); 5304 } 5305 return rc; 5306 } 5307 5308 static void bnxt_clear_int_mode(struct bnxt *bp) 5309 { 5310 if (bp->flags & BNXT_FLAG_USING_MSIX) 5311 pci_disable_msix(bp->pdev); 5312 5313 kfree(bp->irq_tbl); 5314 bp->irq_tbl = NULL; 5315 bp->flags &= ~BNXT_FLAG_USING_MSIX; 5316 } 5317 5318 static void bnxt_free_irq(struct bnxt *bp) 5319 { 5320 struct bnxt_irq *irq; 5321 int i; 5322 5323 #ifdef CONFIG_RFS_ACCEL 5324 free_irq_cpu_rmap(bp->dev->rx_cpu_rmap); 5325 bp->dev->rx_cpu_rmap = NULL; 5326 #endif 5327 if (!bp->irq_tbl) 5328 return; 5329 5330 for (i = 0; i < bp->cp_nr_rings; i++) { 5331 irq = &bp->irq_tbl[i]; 5332 if (irq->requested) 5333 free_irq(irq->vector, bp->bnapi[i]); 5334 irq->requested = 0; 5335 } 5336 } 5337 5338 static int bnxt_request_irq(struct bnxt *bp) 5339 { 5340 int i, j, rc = 0; 5341 unsigned long flags = 0; 5342 #ifdef CONFIG_RFS_ACCEL 5343 struct cpu_rmap *rmap = bp->dev->rx_cpu_rmap; 5344 #endif 5345 5346 if (!(bp->flags & BNXT_FLAG_USING_MSIX)) 5347 flags = IRQF_SHARED; 5348 5349 for (i = 0, j = 0; i < bp->cp_nr_rings; i++) { 5350 struct bnxt_irq *irq = &bp->irq_tbl[i]; 5351 #ifdef CONFIG_RFS_ACCEL 5352 if (rmap && bp->bnapi[i]->rx_ring) { 5353 rc = irq_cpu_rmap_add(rmap, irq->vector); 5354 if (rc) 5355 netdev_warn(bp->dev, "failed adding irq rmap for ring %d\n", 5356 j); 5357 j++; 5358 } 5359 #endif 5360 rc = request_irq(irq->vector, irq->handler, flags, irq->name, 5361 bp->bnapi[i]); 5362 if (rc) 5363 break; 5364 5365 irq->requested = 1; 5366 } 5367 return rc; 5368 } 5369 5370 static void bnxt_del_napi(struct bnxt *bp) 5371 { 5372 int i; 5373 5374 if (!bp->bnapi) 5375 return; 5376 5377 for (i = 0; i < bp->cp_nr_rings; i++) { 5378 struct bnxt_napi *bnapi = bp->bnapi[i]; 5379 5380 napi_hash_del(&bnapi->napi); 5381 netif_napi_del(&bnapi->napi); 5382 } 5383 /* We called napi_hash_del() before netif_napi_del(), we need 5384 * to respect an RCU grace period before freeing napi structures. 5385 */ 5386 synchronize_net(); 5387 } 5388 5389 static void bnxt_init_napi(struct bnxt *bp) 5390 { 5391 int i; 5392 unsigned int cp_nr_rings = bp->cp_nr_rings; 5393 struct bnxt_napi *bnapi; 5394 5395 if (bp->flags & BNXT_FLAG_USING_MSIX) { 5396 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) 5397 cp_nr_rings--; 5398 for (i = 0; i < cp_nr_rings; i++) { 5399 bnapi = bp->bnapi[i]; 5400 netif_napi_add(bp->dev, &bnapi->napi, 5401 bnxt_poll, 64); 5402 } 5403 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 5404 bnapi = bp->bnapi[cp_nr_rings]; 5405 netif_napi_add(bp->dev, &bnapi->napi, 5406 bnxt_poll_nitroa0, 64); 5407 } 5408 } else { 5409 bnapi = bp->bnapi[0]; 5410 netif_napi_add(bp->dev, &bnapi->napi, bnxt_poll, 64); 5411 } 5412 } 5413 5414 static void bnxt_disable_napi(struct bnxt *bp) 5415 { 5416 int i; 5417 5418 if (!bp->bnapi) 5419 return; 5420 5421 for (i = 0; i < bp->cp_nr_rings; i++) 5422 napi_disable(&bp->bnapi[i]->napi); 5423 } 5424 5425 static void bnxt_enable_napi(struct bnxt *bp) 5426 { 5427 int i; 5428 5429 for (i = 0; i < bp->cp_nr_rings; i++) { 5430 bp->bnapi[i]->in_reset = false; 5431 napi_enable(&bp->bnapi[i]->napi); 5432 } 5433 } 5434 5435 void bnxt_tx_disable(struct bnxt *bp) 5436 { 5437 int i; 5438 struct bnxt_tx_ring_info *txr; 5439 struct netdev_queue *txq; 5440 5441 if (bp->tx_ring) { 5442 for (i = 0; i < bp->tx_nr_rings; i++) { 5443 txr = &bp->tx_ring[i]; 5444 txq = netdev_get_tx_queue(bp->dev, i); 5445 txr->dev_state = BNXT_DEV_STATE_CLOSING; 5446 } 5447 } 5448 /* Stop all TX queues */ 5449 netif_tx_disable(bp->dev); 5450 netif_carrier_off(bp->dev); 5451 } 5452 5453 void bnxt_tx_enable(struct bnxt *bp) 5454 { 5455 int i; 5456 struct bnxt_tx_ring_info *txr; 5457 struct netdev_queue *txq; 5458 5459 for (i = 0; i < bp->tx_nr_rings; i++) { 5460 txr = &bp->tx_ring[i]; 5461 txq = netdev_get_tx_queue(bp->dev, i); 5462 txr->dev_state = 0; 5463 } 5464 netif_tx_wake_all_queues(bp->dev); 5465 if (bp->link_info.link_up) 5466 netif_carrier_on(bp->dev); 5467 } 5468 5469 static void bnxt_report_link(struct bnxt *bp) 5470 { 5471 if (bp->link_info.link_up) { 5472 const char *duplex; 5473 const char *flow_ctrl; 5474 u16 speed, fec; 5475 5476 netif_carrier_on(bp->dev); 5477 if (bp->link_info.duplex == BNXT_LINK_DUPLEX_FULL) 5478 duplex = "full"; 5479 else 5480 duplex = "half"; 5481 if (bp->link_info.pause == BNXT_LINK_PAUSE_BOTH) 5482 flow_ctrl = "ON - receive & transmit"; 5483 else if (bp->link_info.pause == BNXT_LINK_PAUSE_TX) 5484 flow_ctrl = "ON - transmit"; 5485 else if (bp->link_info.pause == BNXT_LINK_PAUSE_RX) 5486 flow_ctrl = "ON - receive"; 5487 else 5488 flow_ctrl = "none"; 5489 speed = bnxt_fw_to_ethtool_speed(bp->link_info.link_speed); 5490 netdev_info(bp->dev, "NIC Link is Up, %d Mbps %s duplex, Flow control: %s\n", 5491 speed, duplex, flow_ctrl); 5492 if (bp->flags & BNXT_FLAG_EEE_CAP) 5493 netdev_info(bp->dev, "EEE is %s\n", 5494 bp->eee.eee_active ? "active" : 5495 "not active"); 5496 fec = bp->link_info.fec_cfg; 5497 if (!(fec & PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED)) 5498 netdev_info(bp->dev, "FEC autoneg %s encodings: %s\n", 5499 (fec & BNXT_FEC_AUTONEG) ? "on" : "off", 5500 (fec & BNXT_FEC_ENC_BASE_R) ? "BaseR" : 5501 (fec & BNXT_FEC_ENC_RS) ? "RS" : "None"); 5502 } else { 5503 netif_carrier_off(bp->dev); 5504 netdev_err(bp->dev, "NIC Link is Down\n"); 5505 } 5506 } 5507 5508 static int bnxt_hwrm_phy_qcaps(struct bnxt *bp) 5509 { 5510 int rc = 0; 5511 struct hwrm_port_phy_qcaps_input req = {0}; 5512 struct hwrm_port_phy_qcaps_output *resp = bp->hwrm_cmd_resp_addr; 5513 struct bnxt_link_info *link_info = &bp->link_info; 5514 5515 if (bp->hwrm_spec_code < 0x10201) 5516 return 0; 5517 5518 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCAPS, -1, -1); 5519 5520 mutex_lock(&bp->hwrm_cmd_lock); 5521 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5522 if (rc) 5523 goto hwrm_phy_qcaps_exit; 5524 5525 if (resp->eee_supported & PORT_PHY_QCAPS_RESP_EEE_SUPPORTED) { 5526 struct ethtool_eee *eee = &bp->eee; 5527 u16 fw_speeds = le16_to_cpu(resp->supported_speeds_eee_mode); 5528 5529 bp->flags |= BNXT_FLAG_EEE_CAP; 5530 eee->supported = _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); 5531 bp->lpi_tmr_lo = le32_to_cpu(resp->tx_lpi_timer_low) & 5532 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_LOW_MASK; 5533 bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) & 5534 PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK; 5535 } 5536 if (resp->supported_speeds_auto_mode) 5537 link_info->support_auto_speeds = 5538 le16_to_cpu(resp->supported_speeds_auto_mode); 5539 5540 hwrm_phy_qcaps_exit: 5541 mutex_unlock(&bp->hwrm_cmd_lock); 5542 return rc; 5543 } 5544 5545 static int bnxt_update_link(struct bnxt *bp, bool chng_link_state) 5546 { 5547 int rc = 0; 5548 struct bnxt_link_info *link_info = &bp->link_info; 5549 struct hwrm_port_phy_qcfg_input req = {0}; 5550 struct hwrm_port_phy_qcfg_output *resp = bp->hwrm_cmd_resp_addr; 5551 u8 link_up = link_info->link_up; 5552 u16 diff; 5553 5554 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_QCFG, -1, -1); 5555 5556 mutex_lock(&bp->hwrm_cmd_lock); 5557 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5558 if (rc) { 5559 mutex_unlock(&bp->hwrm_cmd_lock); 5560 return rc; 5561 } 5562 5563 memcpy(&link_info->phy_qcfg_resp, resp, sizeof(*resp)); 5564 link_info->phy_link_status = resp->link; 5565 link_info->duplex = resp->duplex; 5566 link_info->pause = resp->pause; 5567 link_info->auto_mode = resp->auto_mode; 5568 link_info->auto_pause_setting = resp->auto_pause; 5569 link_info->lp_pause = resp->link_partner_adv_pause; 5570 link_info->force_pause_setting = resp->force_pause; 5571 link_info->duplex_setting = resp->duplex; 5572 if (link_info->phy_link_status == BNXT_LINK_LINK) 5573 link_info->link_speed = le16_to_cpu(resp->link_speed); 5574 else 5575 link_info->link_speed = 0; 5576 link_info->force_link_speed = le16_to_cpu(resp->force_link_speed); 5577 link_info->support_speeds = le16_to_cpu(resp->support_speeds); 5578 link_info->auto_link_speeds = le16_to_cpu(resp->auto_link_speed_mask); 5579 link_info->lp_auto_link_speeds = 5580 le16_to_cpu(resp->link_partner_adv_speeds); 5581 link_info->preemphasis = le32_to_cpu(resp->preemphasis); 5582 link_info->phy_ver[0] = resp->phy_maj; 5583 link_info->phy_ver[1] = resp->phy_min; 5584 link_info->phy_ver[2] = resp->phy_bld; 5585 link_info->media_type = resp->media_type; 5586 link_info->phy_type = resp->phy_type; 5587 link_info->transceiver = resp->xcvr_pkg_type; 5588 link_info->phy_addr = resp->eee_config_phy_addr & 5589 PORT_PHY_QCFG_RESP_PHY_ADDR_MASK; 5590 link_info->module_status = resp->module_status; 5591 5592 if (bp->flags & BNXT_FLAG_EEE_CAP) { 5593 struct ethtool_eee *eee = &bp->eee; 5594 u16 fw_speeds; 5595 5596 eee->eee_active = 0; 5597 if (resp->eee_config_phy_addr & 5598 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ACTIVE) { 5599 eee->eee_active = 1; 5600 fw_speeds = le16_to_cpu( 5601 resp->link_partner_adv_eee_link_speed_mask); 5602 eee->lp_advertised = 5603 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); 5604 } 5605 5606 /* Pull initial EEE config */ 5607 if (!chng_link_state) { 5608 if (resp->eee_config_phy_addr & 5609 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_ENABLED) 5610 eee->eee_enabled = 1; 5611 5612 fw_speeds = le16_to_cpu(resp->adv_eee_link_speed_mask); 5613 eee->advertised = 5614 _bnxt_fw_to_ethtool_adv_spds(fw_speeds, 0); 5615 5616 if (resp->eee_config_phy_addr & 5617 PORT_PHY_QCFG_RESP_EEE_CONFIG_EEE_TX_LPI) { 5618 __le32 tmr; 5619 5620 eee->tx_lpi_enabled = 1; 5621 tmr = resp->xcvr_identifier_type_tx_lpi_timer; 5622 eee->tx_lpi_timer = le32_to_cpu(tmr) & 5623 PORT_PHY_QCFG_RESP_TX_LPI_TIMER_MASK; 5624 } 5625 } 5626 } 5627 5628 link_info->fec_cfg = PORT_PHY_QCFG_RESP_FEC_CFG_FEC_NONE_SUPPORTED; 5629 if (bp->hwrm_spec_code >= 0x10504) 5630 link_info->fec_cfg = le16_to_cpu(resp->fec_cfg); 5631 5632 /* TODO: need to add more logic to report VF link */ 5633 if (chng_link_state) { 5634 if (link_info->phy_link_status == BNXT_LINK_LINK) 5635 link_info->link_up = 1; 5636 else 5637 link_info->link_up = 0; 5638 if (link_up != link_info->link_up) 5639 bnxt_report_link(bp); 5640 } else { 5641 /* alwasy link down if not require to update link state */ 5642 link_info->link_up = 0; 5643 } 5644 mutex_unlock(&bp->hwrm_cmd_lock); 5645 5646 diff = link_info->support_auto_speeds ^ link_info->advertising; 5647 if ((link_info->support_auto_speeds | diff) != 5648 link_info->support_auto_speeds) { 5649 /* An advertised speed is no longer supported, so we need to 5650 * update the advertisement settings. Caller holds RTNL 5651 * so we can modify link settings. 5652 */ 5653 link_info->advertising = link_info->support_auto_speeds; 5654 if (link_info->autoneg & BNXT_AUTONEG_SPEED) 5655 bnxt_hwrm_set_link_setting(bp, true, false); 5656 } 5657 return 0; 5658 } 5659 5660 static void bnxt_get_port_module_status(struct bnxt *bp) 5661 { 5662 struct bnxt_link_info *link_info = &bp->link_info; 5663 struct hwrm_port_phy_qcfg_output *resp = &link_info->phy_qcfg_resp; 5664 u8 module_status; 5665 5666 if (bnxt_update_link(bp, true)) 5667 return; 5668 5669 module_status = link_info->module_status; 5670 switch (module_status) { 5671 case PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX: 5672 case PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN: 5673 case PORT_PHY_QCFG_RESP_MODULE_STATUS_WARNINGMSG: 5674 netdev_warn(bp->dev, "Unqualified SFP+ module detected on port %d\n", 5675 bp->pf.port_id); 5676 if (bp->hwrm_spec_code >= 0x10201) { 5677 netdev_warn(bp->dev, "Module part number %s\n", 5678 resp->phy_vendor_partnumber); 5679 } 5680 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_DISABLETX) 5681 netdev_warn(bp->dev, "TX is disabled\n"); 5682 if (module_status == PORT_PHY_QCFG_RESP_MODULE_STATUS_PWRDOWN) 5683 netdev_warn(bp->dev, "SFP+ module is shutdown\n"); 5684 } 5685 } 5686 5687 static void 5688 bnxt_hwrm_set_pause_common(struct bnxt *bp, struct hwrm_port_phy_cfg_input *req) 5689 { 5690 if (bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) { 5691 if (bp->hwrm_spec_code >= 0x10201) 5692 req->auto_pause = 5693 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE; 5694 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) 5695 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_RX; 5696 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) 5697 req->auto_pause |= PORT_PHY_CFG_REQ_AUTO_PAUSE_TX; 5698 req->enables |= 5699 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); 5700 } else { 5701 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_RX) 5702 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_RX; 5703 if (bp->link_info.req_flow_ctrl & BNXT_LINK_PAUSE_TX) 5704 req->force_pause |= PORT_PHY_CFG_REQ_FORCE_PAUSE_TX; 5705 req->enables |= 5706 cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_FORCE_PAUSE); 5707 if (bp->hwrm_spec_code >= 0x10201) { 5708 req->auto_pause = req->force_pause; 5709 req->enables |= cpu_to_le32( 5710 PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE); 5711 } 5712 } 5713 } 5714 5715 static void bnxt_hwrm_set_link_common(struct bnxt *bp, 5716 struct hwrm_port_phy_cfg_input *req) 5717 { 5718 u8 autoneg = bp->link_info.autoneg; 5719 u16 fw_link_speed = bp->link_info.req_link_speed; 5720 u16 advertising = bp->link_info.advertising; 5721 5722 if (autoneg & BNXT_AUTONEG_SPEED) { 5723 req->auto_mode |= 5724 PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK; 5725 5726 req->enables |= cpu_to_le32( 5727 PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK); 5728 req->auto_link_speed_mask = cpu_to_le16(advertising); 5729 5730 req->enables |= cpu_to_le32(PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE); 5731 req->flags |= 5732 cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESTART_AUTONEG); 5733 } else { 5734 req->force_link_speed = cpu_to_le16(fw_link_speed); 5735 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE); 5736 } 5737 5738 /* tell chimp that the setting takes effect immediately */ 5739 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_RESET_PHY); 5740 } 5741 5742 int bnxt_hwrm_set_pause(struct bnxt *bp) 5743 { 5744 struct hwrm_port_phy_cfg_input req = {0}; 5745 int rc; 5746 5747 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1); 5748 bnxt_hwrm_set_pause_common(bp, &req); 5749 5750 if ((bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL) || 5751 bp->link_info.force_link_chng) 5752 bnxt_hwrm_set_link_common(bp, &req); 5753 5754 mutex_lock(&bp->hwrm_cmd_lock); 5755 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5756 if (!rc && !(bp->link_info.autoneg & BNXT_AUTONEG_FLOW_CTRL)) { 5757 /* since changing of pause setting doesn't trigger any link 5758 * change event, the driver needs to update the current pause 5759 * result upon successfully return of the phy_cfg command 5760 */ 5761 bp->link_info.pause = 5762 bp->link_info.force_pause_setting = bp->link_info.req_flow_ctrl; 5763 bp->link_info.auto_pause_setting = 0; 5764 if (!bp->link_info.force_link_chng) 5765 bnxt_report_link(bp); 5766 } 5767 bp->link_info.force_link_chng = false; 5768 mutex_unlock(&bp->hwrm_cmd_lock); 5769 return rc; 5770 } 5771 5772 static void bnxt_hwrm_set_eee(struct bnxt *bp, 5773 struct hwrm_port_phy_cfg_input *req) 5774 { 5775 struct ethtool_eee *eee = &bp->eee; 5776 5777 if (eee->eee_enabled) { 5778 u16 eee_speeds; 5779 u32 flags = PORT_PHY_CFG_REQ_FLAGS_EEE_ENABLE; 5780 5781 if (eee->tx_lpi_enabled) 5782 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_ENABLE; 5783 else 5784 flags |= PORT_PHY_CFG_REQ_FLAGS_EEE_TX_LPI_DISABLE; 5785 5786 req->flags |= cpu_to_le32(flags); 5787 eee_speeds = bnxt_get_fw_auto_link_speeds(eee->advertised); 5788 req->eee_link_speed_mask = cpu_to_le16(eee_speeds); 5789 req->tx_lpi_timer = cpu_to_le32(eee->tx_lpi_timer); 5790 } else { 5791 req->flags |= cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_EEE_DISABLE); 5792 } 5793 } 5794 5795 int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool set_pause, bool set_eee) 5796 { 5797 struct hwrm_port_phy_cfg_input req = {0}; 5798 5799 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1); 5800 if (set_pause) 5801 bnxt_hwrm_set_pause_common(bp, &req); 5802 5803 bnxt_hwrm_set_link_common(bp, &req); 5804 5805 if (set_eee) 5806 bnxt_hwrm_set_eee(bp, &req); 5807 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5808 } 5809 5810 static int bnxt_hwrm_shutdown_link(struct bnxt *bp) 5811 { 5812 struct hwrm_port_phy_cfg_input req = {0}; 5813 5814 if (!BNXT_SINGLE_PF(bp)) 5815 return 0; 5816 5817 if (pci_num_vf(bp->pdev)) 5818 return 0; 5819 5820 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1); 5821 req.flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DWN); 5822 return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5823 } 5824 5825 static int bnxt_hwrm_port_led_qcaps(struct bnxt *bp) 5826 { 5827 struct hwrm_port_led_qcaps_output *resp = bp->hwrm_cmd_resp_addr; 5828 struct hwrm_port_led_qcaps_input req = {0}; 5829 struct bnxt_pf_info *pf = &bp->pf; 5830 int rc; 5831 5832 if (BNXT_VF(bp) || bp->hwrm_spec_code < 0x10601) 5833 return 0; 5834 5835 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_LED_QCAPS, -1, -1); 5836 req.port_id = cpu_to_le16(pf->port_id); 5837 mutex_lock(&bp->hwrm_cmd_lock); 5838 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5839 if (rc) { 5840 mutex_unlock(&bp->hwrm_cmd_lock); 5841 return rc; 5842 } 5843 if (resp->num_leds > 0 && resp->num_leds < BNXT_MAX_LED) { 5844 int i; 5845 5846 bp->num_leds = resp->num_leds; 5847 memcpy(bp->leds, &resp->led0_id, sizeof(bp->leds[0]) * 5848 bp->num_leds); 5849 for (i = 0; i < bp->num_leds; i++) { 5850 struct bnxt_led_info *led = &bp->leds[i]; 5851 __le16 caps = led->led_state_caps; 5852 5853 if (!led->led_group_id || 5854 !BNXT_LED_ALT_BLINK_CAP(caps)) { 5855 bp->num_leds = 0; 5856 break; 5857 } 5858 } 5859 } 5860 mutex_unlock(&bp->hwrm_cmd_lock); 5861 return 0; 5862 } 5863 5864 int bnxt_hwrm_alloc_wol_fltr(struct bnxt *bp) 5865 { 5866 struct hwrm_wol_filter_alloc_input req = {0}; 5867 struct hwrm_wol_filter_alloc_output *resp = bp->hwrm_cmd_resp_addr; 5868 int rc; 5869 5870 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_WOL_FILTER_ALLOC, -1, -1); 5871 req.port_id = cpu_to_le16(bp->pf.port_id); 5872 req.wol_type = WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT; 5873 req.enables = cpu_to_le32(WOL_FILTER_ALLOC_REQ_ENABLES_MAC_ADDRESS); 5874 memcpy(req.mac_address, bp->dev->dev_addr, ETH_ALEN); 5875 mutex_lock(&bp->hwrm_cmd_lock); 5876 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5877 if (!rc) 5878 bp->wol_filter_id = resp->wol_filter_id; 5879 mutex_unlock(&bp->hwrm_cmd_lock); 5880 return rc; 5881 } 5882 5883 int bnxt_hwrm_free_wol_fltr(struct bnxt *bp) 5884 { 5885 struct hwrm_wol_filter_free_input req = {0}; 5886 int rc; 5887 5888 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_WOL_FILTER_FREE, -1, -1); 5889 req.port_id = cpu_to_le16(bp->pf.port_id); 5890 req.enables = cpu_to_le32(WOL_FILTER_FREE_REQ_ENABLES_WOL_FILTER_ID); 5891 req.wol_filter_id = bp->wol_filter_id; 5892 rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5893 return rc; 5894 } 5895 5896 static u16 bnxt_hwrm_get_wol_fltrs(struct bnxt *bp, u16 handle) 5897 { 5898 struct hwrm_wol_filter_qcfg_input req = {0}; 5899 struct hwrm_wol_filter_qcfg_output *resp = bp->hwrm_cmd_resp_addr; 5900 u16 next_handle = 0; 5901 int rc; 5902 5903 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_WOL_FILTER_QCFG, -1, -1); 5904 req.port_id = cpu_to_le16(bp->pf.port_id); 5905 req.handle = cpu_to_le16(handle); 5906 mutex_lock(&bp->hwrm_cmd_lock); 5907 rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); 5908 if (!rc) { 5909 next_handle = le16_to_cpu(resp->next_handle); 5910 if (next_handle != 0) { 5911 if (resp->wol_type == 5912 WOL_FILTER_ALLOC_REQ_WOL_TYPE_MAGICPKT) { 5913 bp->wol = 1; 5914 bp->wol_filter_id = resp->wol_filter_id; 5915 } 5916 } 5917 } 5918 mutex_unlock(&bp->hwrm_cmd_lock); 5919 return next_handle; 5920 } 5921 5922 static void bnxt_get_wol_settings(struct bnxt *bp) 5923 { 5924 u16 handle = 0; 5925 5926 if (!BNXT_PF(bp) || !(bp->flags & BNXT_FLAG_WOL_CAP)) 5927 return; 5928 5929 do { 5930 handle = bnxt_hwrm_get_wol_fltrs(bp, handle); 5931 } while (handle && handle != 0xffff); 5932 } 5933 5934 static bool bnxt_eee_config_ok(struct bnxt *bp) 5935 { 5936 struct ethtool_eee *eee = &bp->eee; 5937 struct bnxt_link_info *link_info = &bp->link_info; 5938 5939 if (!(bp->flags & BNXT_FLAG_EEE_CAP)) 5940 return true; 5941 5942 if (eee->eee_enabled) { 5943 u32 advertising = 5944 _bnxt_fw_to_ethtool_adv_spds(link_info->advertising, 0); 5945 5946 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { 5947 eee->eee_enabled = 0; 5948 return false; 5949 } 5950 if (eee->advertised & ~advertising) { 5951 eee->advertised = advertising & eee->supported; 5952 return false; 5953 } 5954 } 5955 return true; 5956 } 5957 5958 static int bnxt_update_phy_setting(struct bnxt *bp) 5959 { 5960 int rc; 5961 bool update_link = false; 5962 bool update_pause = false; 5963 bool update_eee = false; 5964 struct bnxt_link_info *link_info = &bp->link_info; 5965 5966 rc = bnxt_update_link(bp, true); 5967 if (rc) { 5968 netdev_err(bp->dev, "failed to update link (rc: %x)\n", 5969 rc); 5970 return rc; 5971 } 5972 if (!BNXT_SINGLE_PF(bp)) 5973 return 0; 5974 5975 if ((link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && 5976 (link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH) != 5977 link_info->req_flow_ctrl) 5978 update_pause = true; 5979 if (!(link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) && 5980 link_info->force_pause_setting != link_info->req_flow_ctrl) 5981 update_pause = true; 5982 if (!(link_info->autoneg & BNXT_AUTONEG_SPEED)) { 5983 if (BNXT_AUTO_MODE(link_info->auto_mode)) 5984 update_link = true; 5985 if (link_info->req_link_speed != link_info->force_link_speed) 5986 update_link = true; 5987 if (link_info->req_duplex != link_info->duplex_setting) 5988 update_link = true; 5989 } else { 5990 if (link_info->auto_mode == BNXT_LINK_AUTO_NONE) 5991 update_link = true; 5992 if (link_info->advertising != link_info->auto_link_speeds) 5993 update_link = true; 5994 } 5995 5996 /* The last close may have shutdown the link, so need to call 5997 * PHY_CFG to bring it back up. 5998 */ 5999 if (!netif_carrier_ok(bp->dev)) 6000 update_link = true; 6001 6002 if (!bnxt_eee_config_ok(bp)) 6003 update_eee = true; 6004 6005 if (update_link) 6006 rc = bnxt_hwrm_set_link_setting(bp, update_pause, update_eee); 6007 else if (update_pause) 6008 rc = bnxt_hwrm_set_pause(bp); 6009 if (rc) { 6010 netdev_err(bp->dev, "failed to update phy setting (rc: %x)\n", 6011 rc); 6012 return rc; 6013 } 6014 6015 return rc; 6016 } 6017 6018 /* Common routine to pre-map certain register block to different GRC window. 6019 * A PF has 16 4K windows and a VF has 4 4K windows. However, only 15 windows 6020 * in PF and 3 windows in VF that can be customized to map in different 6021 * register blocks. 6022 */ 6023 static void bnxt_preset_reg_win(struct bnxt *bp) 6024 { 6025 if (BNXT_PF(bp)) { 6026 /* CAG registers map to GRC window #4 */ 6027 writel(BNXT_CAG_REG_BASE, 6028 bp->bar0 + BNXT_GRCPF_REG_WINDOW_BASE_OUT + 12); 6029 } 6030 } 6031 6032 static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 6033 { 6034 int rc = 0; 6035 6036 bnxt_preset_reg_win(bp); 6037 netif_carrier_off(bp->dev); 6038 if (irq_re_init) { 6039 rc = bnxt_setup_int_mode(bp); 6040 if (rc) { 6041 netdev_err(bp->dev, "bnxt_setup_int_mode err: %x\n", 6042 rc); 6043 return rc; 6044 } 6045 } 6046 if ((bp->flags & BNXT_FLAG_RFS) && 6047 !(bp->flags & BNXT_FLAG_USING_MSIX)) { 6048 /* disable RFS if falling back to INTA */ 6049 bp->dev->hw_features &= ~NETIF_F_NTUPLE; 6050 bp->flags &= ~BNXT_FLAG_RFS; 6051 } 6052 6053 rc = bnxt_alloc_mem(bp, irq_re_init); 6054 if (rc) { 6055 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); 6056 goto open_err_free_mem; 6057 } 6058 6059 if (irq_re_init) { 6060 bnxt_init_napi(bp); 6061 rc = bnxt_request_irq(bp); 6062 if (rc) { 6063 netdev_err(bp->dev, "bnxt_request_irq err: %x\n", rc); 6064 goto open_err; 6065 } 6066 } 6067 6068 bnxt_enable_napi(bp); 6069 6070 rc = bnxt_init_nic(bp, irq_re_init); 6071 if (rc) { 6072 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); 6073 goto open_err; 6074 } 6075 6076 if (link_re_init) { 6077 rc = bnxt_update_phy_setting(bp); 6078 if (rc) 6079 netdev_warn(bp->dev, "failed to update phy settings\n"); 6080 } 6081 6082 if (irq_re_init) 6083 udp_tunnel_get_rx_info(bp->dev); 6084 6085 set_bit(BNXT_STATE_OPEN, &bp->state); 6086 bnxt_enable_int(bp); 6087 /* Enable TX queues */ 6088 bnxt_tx_enable(bp); 6089 mod_timer(&bp->timer, jiffies + bp->current_interval); 6090 /* Poll link status and check for SFP+ module status */ 6091 bnxt_get_port_module_status(bp); 6092 6093 return 0; 6094 6095 open_err: 6096 bnxt_disable_napi(bp); 6097 bnxt_del_napi(bp); 6098 6099 open_err_free_mem: 6100 bnxt_free_skbs(bp); 6101 bnxt_free_irq(bp); 6102 bnxt_free_mem(bp, true); 6103 return rc; 6104 } 6105 6106 /* rtnl_lock held */ 6107 int bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 6108 { 6109 int rc = 0; 6110 6111 rc = __bnxt_open_nic(bp, irq_re_init, link_re_init); 6112 if (rc) { 6113 netdev_err(bp->dev, "nic open fail (rc: %x)\n", rc); 6114 dev_close(bp->dev); 6115 } 6116 return rc; 6117 } 6118 6119 /* rtnl_lock held, open the NIC half way by allocating all resources, but 6120 * NAPI, IRQ, and TX are not enabled. This is mainly used for offline 6121 * self tests. 6122 */ 6123 int bnxt_half_open_nic(struct bnxt *bp) 6124 { 6125 int rc = 0; 6126 6127 rc = bnxt_alloc_mem(bp, false); 6128 if (rc) { 6129 netdev_err(bp->dev, "bnxt_alloc_mem err: %x\n", rc); 6130 goto half_open_err; 6131 } 6132 rc = bnxt_init_nic(bp, false); 6133 if (rc) { 6134 netdev_err(bp->dev, "bnxt_init_nic err: %x\n", rc); 6135 goto half_open_err; 6136 } 6137 return 0; 6138 6139 half_open_err: 6140 bnxt_free_skbs(bp); 6141 bnxt_free_mem(bp, false); 6142 dev_close(bp->dev); 6143 return rc; 6144 } 6145 6146 /* rtnl_lock held, this call can only be made after a previous successful 6147 * call to bnxt_half_open_nic(). 6148 */ 6149 void bnxt_half_close_nic(struct bnxt *bp) 6150 { 6151 bnxt_hwrm_resource_free(bp, false, false); 6152 bnxt_free_skbs(bp); 6153 bnxt_free_mem(bp, false); 6154 } 6155 6156 static int bnxt_open(struct net_device *dev) 6157 { 6158 struct bnxt *bp = netdev_priv(dev); 6159 6160 return __bnxt_open_nic(bp, true, true); 6161 } 6162 6163 int bnxt_close_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init) 6164 { 6165 int rc = 0; 6166 6167 #ifdef CONFIG_BNXT_SRIOV 6168 if (bp->sriov_cfg) { 6169 rc = wait_event_interruptible_timeout(bp->sriov_cfg_wait, 6170 !bp->sriov_cfg, 6171 BNXT_SRIOV_CFG_WAIT_TMO); 6172 if (rc) 6173 netdev_warn(bp->dev, "timeout waiting for SRIOV config operation to complete!\n"); 6174 } 6175 #endif 6176 /* Change device state to avoid TX queue wake up's */ 6177 bnxt_tx_disable(bp); 6178 6179 clear_bit(BNXT_STATE_OPEN, &bp->state); 6180 smp_mb__after_atomic(); 6181 while (test_bit(BNXT_STATE_IN_SP_TASK, &bp->state)) 6182 msleep(20); 6183 6184 /* Flush rings and and disable interrupts */ 6185 bnxt_shutdown_nic(bp, irq_re_init); 6186 6187 /* TODO CHIMP_FW: Link/PHY related cleanup if (link_re_init) */ 6188 6189 bnxt_disable_napi(bp); 6190 del_timer_sync(&bp->timer); 6191 bnxt_free_skbs(bp); 6192 6193 if (irq_re_init) { 6194 bnxt_free_irq(bp); 6195 bnxt_del_napi(bp); 6196 } 6197 bnxt_free_mem(bp, irq_re_init); 6198 return rc; 6199 } 6200 6201 static int bnxt_close(struct net_device *dev) 6202 { 6203 struct bnxt *bp = netdev_priv(dev); 6204 6205 bnxt_close_nic(bp, true, true); 6206 bnxt_hwrm_shutdown_link(bp); 6207 return 0; 6208 } 6209 6210 /* rtnl_lock held */ 6211 static int bnxt_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) 6212 { 6213 switch (cmd) { 6214 case SIOCGMIIPHY: 6215 /* fallthru */ 6216 case SIOCGMIIREG: { 6217 if (!netif_running(dev)) 6218 return -EAGAIN; 6219 6220 return 0; 6221 } 6222 6223 case SIOCSMIIREG: 6224 if (!netif_running(dev)) 6225 return -EAGAIN; 6226 6227 return 0; 6228 6229 default: 6230 /* do nothing */ 6231 break; 6232 } 6233 return -EOPNOTSUPP; 6234 } 6235 6236 static void 6237 bnxt_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 6238 { 6239 u32 i; 6240 struct bnxt *bp = netdev_priv(dev); 6241 6242 if (!bp->bnapi) 6243 return; 6244 6245 /* TODO check if we need to synchronize with bnxt_close path */ 6246 for (i = 0; i < bp->cp_nr_rings; i++) { 6247 struct bnxt_napi *bnapi = bp->bnapi[i]; 6248 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 6249 struct ctx_hw_stats *hw_stats = cpr->hw_stats; 6250 6251 stats->rx_packets += le64_to_cpu(hw_stats->rx_ucast_pkts); 6252 stats->rx_packets += le64_to_cpu(hw_stats->rx_mcast_pkts); 6253 stats->rx_packets += le64_to_cpu(hw_stats->rx_bcast_pkts); 6254 6255 stats->tx_packets += le64_to_cpu(hw_stats->tx_ucast_pkts); 6256 stats->tx_packets += le64_to_cpu(hw_stats->tx_mcast_pkts); 6257 stats->tx_packets += le64_to_cpu(hw_stats->tx_bcast_pkts); 6258 6259 stats->rx_bytes += le64_to_cpu(hw_stats->rx_ucast_bytes); 6260 stats->rx_bytes += le64_to_cpu(hw_stats->rx_mcast_bytes); 6261 stats->rx_bytes += le64_to_cpu(hw_stats->rx_bcast_bytes); 6262 6263 stats->tx_bytes += le64_to_cpu(hw_stats->tx_ucast_bytes); 6264 stats->tx_bytes += le64_to_cpu(hw_stats->tx_mcast_bytes); 6265 stats->tx_bytes += le64_to_cpu(hw_stats->tx_bcast_bytes); 6266 6267 stats->rx_missed_errors += 6268 le64_to_cpu(hw_stats->rx_discard_pkts); 6269 6270 stats->multicast += le64_to_cpu(hw_stats->rx_mcast_pkts); 6271 6272 stats->tx_dropped += le64_to_cpu(hw_stats->tx_drop_pkts); 6273 } 6274 6275 if (bp->flags & BNXT_FLAG_PORT_STATS) { 6276 struct rx_port_stats *rx = bp->hw_rx_port_stats; 6277 struct tx_port_stats *tx = bp->hw_tx_port_stats; 6278 6279 stats->rx_crc_errors = le64_to_cpu(rx->rx_fcs_err_frames); 6280 stats->rx_frame_errors = le64_to_cpu(rx->rx_align_err_frames); 6281 stats->rx_length_errors = le64_to_cpu(rx->rx_undrsz_frames) + 6282 le64_to_cpu(rx->rx_ovrsz_frames) + 6283 le64_to_cpu(rx->rx_runt_frames); 6284 stats->rx_errors = le64_to_cpu(rx->rx_false_carrier_frames) + 6285 le64_to_cpu(rx->rx_jbr_frames); 6286 stats->collisions = le64_to_cpu(tx->tx_total_collisions); 6287 stats->tx_fifo_errors = le64_to_cpu(tx->tx_fifo_underruns); 6288 stats->tx_errors = le64_to_cpu(tx->tx_err); 6289 } 6290 } 6291 6292 static bool bnxt_mc_list_updated(struct bnxt *bp, u32 *rx_mask) 6293 { 6294 struct net_device *dev = bp->dev; 6295 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 6296 struct netdev_hw_addr *ha; 6297 u8 *haddr; 6298 int mc_count = 0; 6299 bool update = false; 6300 int off = 0; 6301 6302 netdev_for_each_mc_addr(ha, dev) { 6303 if (mc_count >= BNXT_MAX_MC_ADDRS) { 6304 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 6305 vnic->mc_list_count = 0; 6306 return false; 6307 } 6308 haddr = ha->addr; 6309 if (!ether_addr_equal(haddr, vnic->mc_list + off)) { 6310 memcpy(vnic->mc_list + off, haddr, ETH_ALEN); 6311 update = true; 6312 } 6313 off += ETH_ALEN; 6314 mc_count++; 6315 } 6316 if (mc_count) 6317 *rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST; 6318 6319 if (mc_count != vnic->mc_list_count) { 6320 vnic->mc_list_count = mc_count; 6321 update = true; 6322 } 6323 return update; 6324 } 6325 6326 static bool bnxt_uc_list_updated(struct bnxt *bp) 6327 { 6328 struct net_device *dev = bp->dev; 6329 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 6330 struct netdev_hw_addr *ha; 6331 int off = 0; 6332 6333 if (netdev_uc_count(dev) != (vnic->uc_filter_count - 1)) 6334 return true; 6335 6336 netdev_for_each_uc_addr(ha, dev) { 6337 if (!ether_addr_equal(ha->addr, vnic->uc_list + off)) 6338 return true; 6339 6340 off += ETH_ALEN; 6341 } 6342 return false; 6343 } 6344 6345 static void bnxt_set_rx_mode(struct net_device *dev) 6346 { 6347 struct bnxt *bp = netdev_priv(dev); 6348 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 6349 u32 mask = vnic->rx_mask; 6350 bool mc_update = false; 6351 bool uc_update; 6352 6353 if (!netif_running(dev)) 6354 return; 6355 6356 mask &= ~(CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS | 6357 CFA_L2_SET_RX_MASK_REQ_MASK_MCAST | 6358 CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST); 6359 6360 if ((dev->flags & IFF_PROMISC) && bnxt_promisc_ok(bp)) 6361 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 6362 6363 uc_update = bnxt_uc_list_updated(bp); 6364 6365 if (dev->flags & IFF_ALLMULTI) { 6366 mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST; 6367 vnic->mc_list_count = 0; 6368 } else { 6369 mc_update = bnxt_mc_list_updated(bp, &mask); 6370 } 6371 6372 if (mask != vnic->rx_mask || uc_update || mc_update) { 6373 vnic->rx_mask = mask; 6374 6375 set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event); 6376 schedule_work(&bp->sp_task); 6377 } 6378 } 6379 6380 static int bnxt_cfg_rx_mode(struct bnxt *bp) 6381 { 6382 struct net_device *dev = bp->dev; 6383 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 6384 struct netdev_hw_addr *ha; 6385 int i, off = 0, rc; 6386 bool uc_update; 6387 6388 netif_addr_lock_bh(dev); 6389 uc_update = bnxt_uc_list_updated(bp); 6390 netif_addr_unlock_bh(dev); 6391 6392 if (!uc_update) 6393 goto skip_uc; 6394 6395 mutex_lock(&bp->hwrm_cmd_lock); 6396 for (i = 1; i < vnic->uc_filter_count; i++) { 6397 struct hwrm_cfa_l2_filter_free_input req = {0}; 6398 6399 bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_CFA_L2_FILTER_FREE, -1, 6400 -1); 6401 6402 req.l2_filter_id = vnic->fw_l2_filter_id[i]; 6403 6404 rc = _hwrm_send_message(bp, &req, sizeof(req), 6405 HWRM_CMD_TIMEOUT); 6406 } 6407 mutex_unlock(&bp->hwrm_cmd_lock); 6408 6409 vnic->uc_filter_count = 1; 6410 6411 netif_addr_lock_bh(dev); 6412 if (netdev_uc_count(dev) > (BNXT_MAX_UC_ADDRS - 1)) { 6413 vnic->rx_mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS; 6414 } else { 6415 netdev_for_each_uc_addr(ha, dev) { 6416 memcpy(vnic->uc_list + off, ha->addr, ETH_ALEN); 6417 off += ETH_ALEN; 6418 vnic->uc_filter_count++; 6419 } 6420 } 6421 netif_addr_unlock_bh(dev); 6422 6423 for (i = 1, off = 0; i < vnic->uc_filter_count; i++, off += ETH_ALEN) { 6424 rc = bnxt_hwrm_set_vnic_filter(bp, 0, i, vnic->uc_list + off); 6425 if (rc) { 6426 netdev_err(bp->dev, "HWRM vnic filter failure rc: %x\n", 6427 rc); 6428 vnic->uc_filter_count = i; 6429 return rc; 6430 } 6431 } 6432 6433 skip_uc: 6434 rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, 0); 6435 if (rc) 6436 netdev_err(bp->dev, "HWRM cfa l2 rx mask failure rc: %x\n", 6437 rc); 6438 6439 return rc; 6440 } 6441 6442 /* If the chip and firmware supports RFS */ 6443 static bool bnxt_rfs_supported(struct bnxt *bp) 6444 { 6445 if (BNXT_PF(bp) && !BNXT_CHIP_TYPE_NITRO_A0(bp)) 6446 return true; 6447 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) 6448 return true; 6449 return false; 6450 } 6451 6452 /* If runtime conditions support RFS */ 6453 static bool bnxt_rfs_capable(struct bnxt *bp) 6454 { 6455 #ifdef CONFIG_RFS_ACCEL 6456 int vnics, max_vnics, max_rss_ctxs; 6457 6458 if (!(bp->flags & BNXT_FLAG_MSIX_CAP)) 6459 return false; 6460 6461 vnics = 1 + bp->rx_nr_rings; 6462 max_vnics = bnxt_get_max_func_vnics(bp); 6463 max_rss_ctxs = bnxt_get_max_func_rss_ctxs(bp); 6464 6465 /* RSS contexts not a limiting factor */ 6466 if (bp->flags & BNXT_FLAG_NEW_RSS_CAP) 6467 max_rss_ctxs = max_vnics; 6468 if (vnics > max_vnics || vnics > max_rss_ctxs) { 6469 netdev_warn(bp->dev, 6470 "Not enough resources to support NTUPLE filters, enough resources for up to %d rx rings\n", 6471 min(max_rss_ctxs - 1, max_vnics - 1)); 6472 return false; 6473 } 6474 6475 return true; 6476 #else 6477 return false; 6478 #endif 6479 } 6480 6481 static netdev_features_t bnxt_fix_features(struct net_device *dev, 6482 netdev_features_t features) 6483 { 6484 struct bnxt *bp = netdev_priv(dev); 6485 6486 if ((features & NETIF_F_NTUPLE) && !bnxt_rfs_capable(bp)) 6487 features &= ~NETIF_F_NTUPLE; 6488 6489 /* Both CTAG and STAG VLAN accelaration on the RX side have to be 6490 * turned on or off together. 6491 */ 6492 if ((features & (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) != 6493 (NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_STAG_RX)) { 6494 if (dev->features & NETIF_F_HW_VLAN_CTAG_RX) 6495 features &= ~(NETIF_F_HW_VLAN_CTAG_RX | 6496 NETIF_F_HW_VLAN_STAG_RX); 6497 else 6498 features |= NETIF_F_HW_VLAN_CTAG_RX | 6499 NETIF_F_HW_VLAN_STAG_RX; 6500 } 6501 #ifdef CONFIG_BNXT_SRIOV 6502 if (BNXT_VF(bp)) { 6503 if (bp->vf.vlan) { 6504 features &= ~(NETIF_F_HW_VLAN_CTAG_RX | 6505 NETIF_F_HW_VLAN_STAG_RX); 6506 } 6507 } 6508 #endif 6509 return features; 6510 } 6511 6512 static int bnxt_set_features(struct net_device *dev, netdev_features_t features) 6513 { 6514 struct bnxt *bp = netdev_priv(dev); 6515 u32 flags = bp->flags; 6516 u32 changes; 6517 int rc = 0; 6518 bool re_init = false; 6519 bool update_tpa = false; 6520 6521 flags &= ~BNXT_FLAG_ALL_CONFIG_FEATS; 6522 if ((features & NETIF_F_GRO) && !BNXT_CHIP_TYPE_NITRO_A0(bp)) 6523 flags |= BNXT_FLAG_GRO; 6524 if (features & NETIF_F_LRO) 6525 flags |= BNXT_FLAG_LRO; 6526 6527 if (bp->flags & BNXT_FLAG_NO_AGG_RINGS) 6528 flags &= ~BNXT_FLAG_TPA; 6529 6530 if (features & NETIF_F_HW_VLAN_CTAG_RX) 6531 flags |= BNXT_FLAG_STRIP_VLAN; 6532 6533 if (features & NETIF_F_NTUPLE) 6534 flags |= BNXT_FLAG_RFS; 6535 6536 changes = flags ^ bp->flags; 6537 if (changes & BNXT_FLAG_TPA) { 6538 update_tpa = true; 6539 if ((bp->flags & BNXT_FLAG_TPA) == 0 || 6540 (flags & BNXT_FLAG_TPA) == 0) 6541 re_init = true; 6542 } 6543 6544 if (changes & ~BNXT_FLAG_TPA) 6545 re_init = true; 6546 6547 if (flags != bp->flags) { 6548 u32 old_flags = bp->flags; 6549 6550 bp->flags = flags; 6551 6552 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 6553 if (update_tpa) 6554 bnxt_set_ring_params(bp); 6555 return rc; 6556 } 6557 6558 if (re_init) { 6559 bnxt_close_nic(bp, false, false); 6560 if (update_tpa) 6561 bnxt_set_ring_params(bp); 6562 6563 return bnxt_open_nic(bp, false, false); 6564 } 6565 if (update_tpa) { 6566 rc = bnxt_set_tpa(bp, 6567 (flags & BNXT_FLAG_TPA) ? 6568 true : false); 6569 if (rc) 6570 bp->flags = old_flags; 6571 } 6572 } 6573 return rc; 6574 } 6575 6576 static void bnxt_dump_tx_sw_state(struct bnxt_napi *bnapi) 6577 { 6578 struct bnxt_tx_ring_info *txr = bnapi->tx_ring; 6579 int i = bnapi->index; 6580 6581 if (!txr) 6582 return; 6583 6584 netdev_info(bnapi->bp->dev, "[%d]: tx{fw_ring: %d prod: %x cons: %x}\n", 6585 i, txr->tx_ring_struct.fw_ring_id, txr->tx_prod, 6586 txr->tx_cons); 6587 } 6588 6589 static void bnxt_dump_rx_sw_state(struct bnxt_napi *bnapi) 6590 { 6591 struct bnxt_rx_ring_info *rxr = bnapi->rx_ring; 6592 int i = bnapi->index; 6593 6594 if (!rxr) 6595 return; 6596 6597 netdev_info(bnapi->bp->dev, "[%d]: rx{fw_ring: %d prod: %x} rx_agg{fw_ring: %d agg_prod: %x sw_agg_prod: %x}\n", 6598 i, rxr->rx_ring_struct.fw_ring_id, rxr->rx_prod, 6599 rxr->rx_agg_ring_struct.fw_ring_id, rxr->rx_agg_prod, 6600 rxr->rx_sw_agg_prod); 6601 } 6602 6603 static void bnxt_dump_cp_sw_state(struct bnxt_napi *bnapi) 6604 { 6605 struct bnxt_cp_ring_info *cpr = &bnapi->cp_ring; 6606 int i = bnapi->index; 6607 6608 netdev_info(bnapi->bp->dev, "[%d]: cp{fw_ring: %d raw_cons: %x}\n", 6609 i, cpr->cp_ring_struct.fw_ring_id, cpr->cp_raw_cons); 6610 } 6611 6612 static void bnxt_dbg_dump_states(struct bnxt *bp) 6613 { 6614 int i; 6615 struct bnxt_napi *bnapi; 6616 6617 for (i = 0; i < bp->cp_nr_rings; i++) { 6618 bnapi = bp->bnapi[i]; 6619 if (netif_msg_drv(bp)) { 6620 bnxt_dump_tx_sw_state(bnapi); 6621 bnxt_dump_rx_sw_state(bnapi); 6622 bnxt_dump_cp_sw_state(bnapi); 6623 } 6624 } 6625 } 6626 6627 static void bnxt_reset_task(struct bnxt *bp, bool silent) 6628 { 6629 if (!silent) 6630 bnxt_dbg_dump_states(bp); 6631 if (netif_running(bp->dev)) { 6632 int rc; 6633 6634 if (!silent) 6635 bnxt_ulp_stop(bp); 6636 bnxt_close_nic(bp, false, false); 6637 rc = bnxt_open_nic(bp, false, false); 6638 if (!silent && !rc) 6639 bnxt_ulp_start(bp); 6640 } 6641 } 6642 6643 static void bnxt_tx_timeout(struct net_device *dev) 6644 { 6645 struct bnxt *bp = netdev_priv(dev); 6646 6647 netdev_err(bp->dev, "TX timeout detected, starting reset task!\n"); 6648 set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event); 6649 schedule_work(&bp->sp_task); 6650 } 6651 6652 #ifdef CONFIG_NET_POLL_CONTROLLER 6653 static void bnxt_poll_controller(struct net_device *dev) 6654 { 6655 struct bnxt *bp = netdev_priv(dev); 6656 int i; 6657 6658 for (i = 0; i < bp->cp_nr_rings; i++) { 6659 struct bnxt_irq *irq = &bp->irq_tbl[i]; 6660 6661 disable_irq(irq->vector); 6662 irq->handler(irq->vector, bp->bnapi[i]); 6663 enable_irq(irq->vector); 6664 } 6665 } 6666 #endif 6667 6668 static void bnxt_timer(unsigned long data) 6669 { 6670 struct bnxt *bp = (struct bnxt *)data; 6671 struct net_device *dev = bp->dev; 6672 6673 if (!netif_running(dev)) 6674 return; 6675 6676 if (atomic_read(&bp->intr_sem) != 0) 6677 goto bnxt_restart_timer; 6678 6679 if (bp->link_info.link_up && (bp->flags & BNXT_FLAG_PORT_STATS)) { 6680 set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event); 6681 schedule_work(&bp->sp_task); 6682 } 6683 bnxt_restart_timer: 6684 mod_timer(&bp->timer, jiffies + bp->current_interval); 6685 } 6686 6687 static void bnxt_rtnl_lock_sp(struct bnxt *bp) 6688 { 6689 /* We are called from bnxt_sp_task which has BNXT_STATE_IN_SP_TASK 6690 * set. If the device is being closed, bnxt_close() may be holding 6691 * rtnl() and waiting for BNXT_STATE_IN_SP_TASK to clear. So we 6692 * must clear BNXT_STATE_IN_SP_TASK before holding rtnl(). 6693 */ 6694 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 6695 rtnl_lock(); 6696 } 6697 6698 static void bnxt_rtnl_unlock_sp(struct bnxt *bp) 6699 { 6700 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 6701 rtnl_unlock(); 6702 } 6703 6704 /* Only called from bnxt_sp_task() */ 6705 static void bnxt_reset(struct bnxt *bp, bool silent) 6706 { 6707 bnxt_rtnl_lock_sp(bp); 6708 if (test_bit(BNXT_STATE_OPEN, &bp->state)) 6709 bnxt_reset_task(bp, silent); 6710 bnxt_rtnl_unlock_sp(bp); 6711 } 6712 6713 static void bnxt_cfg_ntp_filters(struct bnxt *); 6714 6715 static void bnxt_sp_task(struct work_struct *work) 6716 { 6717 struct bnxt *bp = container_of(work, struct bnxt, sp_task); 6718 6719 set_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 6720 smp_mb__after_atomic(); 6721 if (!test_bit(BNXT_STATE_OPEN, &bp->state)) { 6722 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 6723 return; 6724 } 6725 6726 if (test_and_clear_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event)) 6727 bnxt_cfg_rx_mode(bp); 6728 6729 if (test_and_clear_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event)) 6730 bnxt_cfg_ntp_filters(bp); 6731 if (test_and_clear_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event)) 6732 bnxt_hwrm_exec_fwd_req(bp); 6733 if (test_and_clear_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event)) { 6734 bnxt_hwrm_tunnel_dst_port_alloc( 6735 bp, bp->vxlan_port, 6736 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN); 6737 } 6738 if (test_and_clear_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event)) { 6739 bnxt_hwrm_tunnel_dst_port_free( 6740 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_VXLAN); 6741 } 6742 if (test_and_clear_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event)) { 6743 bnxt_hwrm_tunnel_dst_port_alloc( 6744 bp, bp->nge_port, 6745 TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE); 6746 } 6747 if (test_and_clear_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event)) { 6748 bnxt_hwrm_tunnel_dst_port_free( 6749 bp, TUNNEL_DST_PORT_FREE_REQ_TUNNEL_TYPE_GENEVE); 6750 } 6751 if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event)) 6752 bnxt_hwrm_port_qstats(bp); 6753 6754 /* These functions below will clear BNXT_STATE_IN_SP_TASK. They 6755 * must be the last functions to be called before exiting. 6756 */ 6757 if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) { 6758 int rc = 0; 6759 6760 if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, 6761 &bp->sp_event)) 6762 bnxt_hwrm_phy_qcaps(bp); 6763 6764 bnxt_rtnl_lock_sp(bp); 6765 if (test_bit(BNXT_STATE_OPEN, &bp->state)) 6766 rc = bnxt_update_link(bp, true); 6767 bnxt_rtnl_unlock_sp(bp); 6768 if (rc) 6769 netdev_err(bp->dev, "SP task can't update link (rc: %x)\n", 6770 rc); 6771 } 6772 if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) { 6773 bnxt_rtnl_lock_sp(bp); 6774 if (test_bit(BNXT_STATE_OPEN, &bp->state)) 6775 bnxt_get_port_module_status(bp); 6776 bnxt_rtnl_unlock_sp(bp); 6777 } 6778 if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event)) 6779 bnxt_reset(bp, false); 6780 6781 if (test_and_clear_bit(BNXT_RESET_TASK_SILENT_SP_EVENT, &bp->sp_event)) 6782 bnxt_reset(bp, true); 6783 6784 smp_mb__before_atomic(); 6785 clear_bit(BNXT_STATE_IN_SP_TASK, &bp->state); 6786 } 6787 6788 /* Under rtnl_lock */ 6789 int bnxt_reserve_rings(struct bnxt *bp, int tx, int rx, int tcs, int tx_xdp) 6790 { 6791 int max_rx, max_tx, tx_sets = 1; 6792 int tx_rings_needed; 6793 bool sh = true; 6794 int rc; 6795 6796 if (!(bp->flags & BNXT_FLAG_SHARED_RINGS)) 6797 sh = false; 6798 6799 if (tcs) 6800 tx_sets = tcs; 6801 6802 rc = bnxt_get_max_rings(bp, &max_rx, &max_tx, sh); 6803 if (rc) 6804 return rc; 6805 6806 if (max_rx < rx) 6807 return -ENOMEM; 6808 6809 tx_rings_needed = tx * tx_sets + tx_xdp; 6810 if (max_tx < tx_rings_needed) 6811 return -ENOMEM; 6812 6813 if (bnxt_hwrm_reserve_tx_rings(bp, &tx_rings_needed) || 6814 tx_rings_needed < (tx * tx_sets + tx_xdp)) 6815 return -ENOMEM; 6816 return 0; 6817 } 6818 6819 static void bnxt_unmap_bars(struct bnxt *bp, struct pci_dev *pdev) 6820 { 6821 if (bp->bar2) { 6822 pci_iounmap(pdev, bp->bar2); 6823 bp->bar2 = NULL; 6824 } 6825 6826 if (bp->bar1) { 6827 pci_iounmap(pdev, bp->bar1); 6828 bp->bar1 = NULL; 6829 } 6830 6831 if (bp->bar0) { 6832 pci_iounmap(pdev, bp->bar0); 6833 bp->bar0 = NULL; 6834 } 6835 } 6836 6837 static void bnxt_cleanup_pci(struct bnxt *bp) 6838 { 6839 bnxt_unmap_bars(bp, bp->pdev); 6840 pci_release_regions(bp->pdev); 6841 pci_disable_device(bp->pdev); 6842 } 6843 6844 static int bnxt_init_board(struct pci_dev *pdev, struct net_device *dev) 6845 { 6846 int rc; 6847 struct bnxt *bp = netdev_priv(dev); 6848 6849 SET_NETDEV_DEV(dev, &pdev->dev); 6850 6851 /* enable device (incl. PCI PM wakeup), and bus-mastering */ 6852 rc = pci_enable_device(pdev); 6853 if (rc) { 6854 dev_err(&pdev->dev, "Cannot enable PCI device, aborting\n"); 6855 goto init_err; 6856 } 6857 6858 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { 6859 dev_err(&pdev->dev, 6860 "Cannot find PCI device base address, aborting\n"); 6861 rc = -ENODEV; 6862 goto init_err_disable; 6863 } 6864 6865 rc = pci_request_regions(pdev, DRV_MODULE_NAME); 6866 if (rc) { 6867 dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n"); 6868 goto init_err_disable; 6869 } 6870 6871 if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) != 0 && 6872 dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)) != 0) { 6873 dev_err(&pdev->dev, "System does not support DMA, aborting\n"); 6874 goto init_err_disable; 6875 } 6876 6877 pci_set_master(pdev); 6878 6879 bp->dev = dev; 6880 bp->pdev = pdev; 6881 6882 bp->bar0 = pci_ioremap_bar(pdev, 0); 6883 if (!bp->bar0) { 6884 dev_err(&pdev->dev, "Cannot map device registers, aborting\n"); 6885 rc = -ENOMEM; 6886 goto init_err_release; 6887 } 6888 6889 bp->bar1 = pci_ioremap_bar(pdev, 2); 6890 if (!bp->bar1) { 6891 dev_err(&pdev->dev, "Cannot map doorbell registers, aborting\n"); 6892 rc = -ENOMEM; 6893 goto init_err_release; 6894 } 6895 6896 bp->bar2 = pci_ioremap_bar(pdev, 4); 6897 if (!bp->bar2) { 6898 dev_err(&pdev->dev, "Cannot map bar4 registers, aborting\n"); 6899 rc = -ENOMEM; 6900 goto init_err_release; 6901 } 6902 6903 pci_enable_pcie_error_reporting(pdev); 6904 6905 INIT_WORK(&bp->sp_task, bnxt_sp_task); 6906 6907 spin_lock_init(&bp->ntp_fltr_lock); 6908 6909 bp->rx_ring_size = BNXT_DEFAULT_RX_RING_SIZE; 6910 bp->tx_ring_size = BNXT_DEFAULT_TX_RING_SIZE; 6911 6912 /* tick values in micro seconds */ 6913 bp->rx_coal_ticks = 12; 6914 bp->rx_coal_bufs = 30; 6915 bp->rx_coal_ticks_irq = 1; 6916 bp->rx_coal_bufs_irq = 2; 6917 6918 bp->tx_coal_ticks = 25; 6919 bp->tx_coal_bufs = 30; 6920 bp->tx_coal_ticks_irq = 2; 6921 bp->tx_coal_bufs_irq = 2; 6922 6923 bp->stats_coal_ticks = BNXT_DEF_STATS_COAL_TICKS; 6924 6925 init_timer(&bp->timer); 6926 bp->timer.data = (unsigned long)bp; 6927 bp->timer.function = bnxt_timer; 6928 bp->current_interval = BNXT_TIMER_INTERVAL; 6929 6930 clear_bit(BNXT_STATE_OPEN, &bp->state); 6931 return 0; 6932 6933 init_err_release: 6934 bnxt_unmap_bars(bp, pdev); 6935 pci_release_regions(pdev); 6936 6937 init_err_disable: 6938 pci_disable_device(pdev); 6939 6940 init_err: 6941 return rc; 6942 } 6943 6944 /* rtnl_lock held */ 6945 static int bnxt_change_mac_addr(struct net_device *dev, void *p) 6946 { 6947 struct sockaddr *addr = p; 6948 struct bnxt *bp = netdev_priv(dev); 6949 int rc = 0; 6950 6951 if (!is_valid_ether_addr(addr->sa_data)) 6952 return -EADDRNOTAVAIL; 6953 6954 rc = bnxt_approve_mac(bp, addr->sa_data); 6955 if (rc) 6956 return rc; 6957 6958 if (ether_addr_equal(addr->sa_data, dev->dev_addr)) 6959 return 0; 6960 6961 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); 6962 if (netif_running(dev)) { 6963 bnxt_close_nic(bp, false, false); 6964 rc = bnxt_open_nic(bp, false, false); 6965 } 6966 6967 return rc; 6968 } 6969 6970 /* rtnl_lock held */ 6971 static int bnxt_change_mtu(struct net_device *dev, int new_mtu) 6972 { 6973 struct bnxt *bp = netdev_priv(dev); 6974 6975 if (netif_running(dev)) 6976 bnxt_close_nic(bp, false, false); 6977 6978 dev->mtu = new_mtu; 6979 bnxt_set_ring_params(bp); 6980 6981 if (netif_running(dev)) 6982 return bnxt_open_nic(bp, false, false); 6983 6984 return 0; 6985 } 6986 6987 int bnxt_setup_mq_tc(struct net_device *dev, u8 tc) 6988 { 6989 struct bnxt *bp = netdev_priv(dev); 6990 bool sh = false; 6991 int rc; 6992 6993 if (tc > bp->max_tc) { 6994 netdev_err(dev, "Too many traffic classes requested: %d. Max supported is %d.\n", 6995 tc, bp->max_tc); 6996 return -EINVAL; 6997 } 6998 6999 if (netdev_get_num_tc(dev) == tc) 7000 return 0; 7001 7002 if (bp->flags & BNXT_FLAG_SHARED_RINGS) 7003 sh = true; 7004 7005 rc = bnxt_reserve_rings(bp, bp->tx_nr_rings_per_tc, bp->rx_nr_rings, 7006 tc, bp->tx_nr_rings_xdp); 7007 if (rc) 7008 return rc; 7009 7010 /* Needs to close the device and do hw resource re-allocations */ 7011 if (netif_running(bp->dev)) 7012 bnxt_close_nic(bp, true, false); 7013 7014 if (tc) { 7015 bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc; 7016 netdev_set_num_tc(dev, tc); 7017 } else { 7018 bp->tx_nr_rings = bp->tx_nr_rings_per_tc; 7019 netdev_reset_tc(dev); 7020 } 7021 bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) : 7022 bp->tx_nr_rings + bp->rx_nr_rings; 7023 bp->num_stat_ctxs = bp->cp_nr_rings; 7024 7025 if (netif_running(bp->dev)) 7026 return bnxt_open_nic(bp, true, false); 7027 7028 return 0; 7029 } 7030 7031 static int bnxt_setup_tc(struct net_device *dev, u32 handle, __be16 proto, 7032 struct tc_to_netdev *ntc) 7033 { 7034 if (ntc->type != TC_SETUP_MQPRIO) 7035 return -EINVAL; 7036 7037 ntc->mqprio->hw = TC_MQPRIO_HW_OFFLOAD_TCS; 7038 7039 return bnxt_setup_mq_tc(dev, ntc->mqprio->num_tc); 7040 } 7041 7042 #ifdef CONFIG_RFS_ACCEL 7043 static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1, 7044 struct bnxt_ntuple_filter *f2) 7045 { 7046 struct flow_keys *keys1 = &f1->fkeys; 7047 struct flow_keys *keys2 = &f2->fkeys; 7048 7049 if (keys1->addrs.v4addrs.src == keys2->addrs.v4addrs.src && 7050 keys1->addrs.v4addrs.dst == keys2->addrs.v4addrs.dst && 7051 keys1->ports.ports == keys2->ports.ports && 7052 keys1->basic.ip_proto == keys2->basic.ip_proto && 7053 keys1->basic.n_proto == keys2->basic.n_proto && 7054 keys1->control.flags == keys2->control.flags && 7055 ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr) && 7056 ether_addr_equal(f1->dst_mac_addr, f2->dst_mac_addr)) 7057 return true; 7058 7059 return false; 7060 } 7061 7062 static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, 7063 u16 rxq_index, u32 flow_id) 7064 { 7065 struct bnxt *bp = netdev_priv(dev); 7066 struct bnxt_ntuple_filter *fltr, *new_fltr; 7067 struct flow_keys *fkeys; 7068 struct ethhdr *eth = (struct ethhdr *)skb_mac_header(skb); 7069 int rc = 0, idx, bit_id, l2_idx = 0; 7070 struct hlist_head *head; 7071 7072 if (!ether_addr_equal(dev->dev_addr, eth->h_dest)) { 7073 struct bnxt_vnic_info *vnic = &bp->vnic_info[0]; 7074 int off = 0, j; 7075 7076 netif_addr_lock_bh(dev); 7077 for (j = 0; j < vnic->uc_filter_count; j++, off += ETH_ALEN) { 7078 if (ether_addr_equal(eth->h_dest, 7079 vnic->uc_list + off)) { 7080 l2_idx = j + 1; 7081 break; 7082 } 7083 } 7084 netif_addr_unlock_bh(dev); 7085 if (!l2_idx) 7086 return -EINVAL; 7087 } 7088 new_fltr = kzalloc(sizeof(*new_fltr), GFP_ATOMIC); 7089 if (!new_fltr) 7090 return -ENOMEM; 7091 7092 fkeys = &new_fltr->fkeys; 7093 if (!skb_flow_dissect_flow_keys(skb, fkeys, 0)) { 7094 rc = -EPROTONOSUPPORT; 7095 goto err_free; 7096 } 7097 7098 if ((fkeys->basic.n_proto != htons(ETH_P_IP) && 7099 fkeys->basic.n_proto != htons(ETH_P_IPV6)) || 7100 ((fkeys->basic.ip_proto != IPPROTO_TCP) && 7101 (fkeys->basic.ip_proto != IPPROTO_UDP))) { 7102 rc = -EPROTONOSUPPORT; 7103 goto err_free; 7104 } 7105 if (fkeys->basic.n_proto == htons(ETH_P_IPV6) && 7106 bp->hwrm_spec_code < 0x10601) { 7107 rc = -EPROTONOSUPPORT; 7108 goto err_free; 7109 } 7110 if ((fkeys->control.flags & FLOW_DIS_ENCAPSULATION) && 7111 bp->hwrm_spec_code < 0x10601) { 7112 rc = -EPROTONOSUPPORT; 7113 goto err_free; 7114 } 7115 7116 memcpy(new_fltr->dst_mac_addr, eth->h_dest, ETH_ALEN); 7117 memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN); 7118 7119 idx = skb_get_hash_raw(skb) & BNXT_NTP_FLTR_HASH_MASK; 7120 head = &bp->ntp_fltr_hash_tbl[idx]; 7121 rcu_read_lock(); 7122 hlist_for_each_entry_rcu(fltr, head, hash) { 7123 if (bnxt_fltr_match(fltr, new_fltr)) { 7124 rcu_read_unlock(); 7125 rc = 0; 7126 goto err_free; 7127 } 7128 } 7129 rcu_read_unlock(); 7130 7131 spin_lock_bh(&bp->ntp_fltr_lock); 7132 bit_id = bitmap_find_free_region(bp->ntp_fltr_bmap, 7133 BNXT_NTP_FLTR_MAX_FLTR, 0); 7134 if (bit_id < 0) { 7135 spin_unlock_bh(&bp->ntp_fltr_lock); 7136 rc = -ENOMEM; 7137 goto err_free; 7138 } 7139 7140 new_fltr->sw_id = (u16)bit_id; 7141 new_fltr->flow_id = flow_id; 7142 new_fltr->l2_fltr_idx = l2_idx; 7143 new_fltr->rxq = rxq_index; 7144 hlist_add_head_rcu(&new_fltr->hash, head); 7145 bp->ntp_fltr_count++; 7146 spin_unlock_bh(&bp->ntp_fltr_lock); 7147 7148 set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event); 7149 schedule_work(&bp->sp_task); 7150 7151 return new_fltr->sw_id; 7152 7153 err_free: 7154 kfree(new_fltr); 7155 return rc; 7156 } 7157 7158 static void bnxt_cfg_ntp_filters(struct bnxt *bp) 7159 { 7160 int i; 7161 7162 for (i = 0; i < BNXT_NTP_FLTR_HASH_SIZE; i++) { 7163 struct hlist_head *head; 7164 struct hlist_node *tmp; 7165 struct bnxt_ntuple_filter *fltr; 7166 int rc; 7167 7168 head = &bp->ntp_fltr_hash_tbl[i]; 7169 hlist_for_each_entry_safe(fltr, tmp, head, hash) { 7170 bool del = false; 7171 7172 if (test_bit(BNXT_FLTR_VALID, &fltr->state)) { 7173 if (rps_may_expire_flow(bp->dev, fltr->rxq, 7174 fltr->flow_id, 7175 fltr->sw_id)) { 7176 bnxt_hwrm_cfa_ntuple_filter_free(bp, 7177 fltr); 7178 del = true; 7179 } 7180 } else { 7181 rc = bnxt_hwrm_cfa_ntuple_filter_alloc(bp, 7182 fltr); 7183 if (rc) 7184 del = true; 7185 else 7186 set_bit(BNXT_FLTR_VALID, &fltr->state); 7187 } 7188 7189 if (del) { 7190 spin_lock_bh(&bp->ntp_fltr_lock); 7191 hlist_del_rcu(&fltr->hash); 7192 bp->ntp_fltr_count--; 7193 spin_unlock_bh(&bp->ntp_fltr_lock); 7194 synchronize_rcu(); 7195 clear_bit(fltr->sw_id, bp->ntp_fltr_bmap); 7196 kfree(fltr); 7197 } 7198 } 7199 } 7200 if (test_and_clear_bit(BNXT_HWRM_PF_UNLOAD_SP_EVENT, &bp->sp_event)) 7201 netdev_info(bp->dev, "Receive PF driver unload event!"); 7202 } 7203 7204 #else 7205 7206 static void bnxt_cfg_ntp_filters(struct bnxt *bp) 7207 { 7208 } 7209 7210 #endif /* CONFIG_RFS_ACCEL */ 7211 7212 static void bnxt_udp_tunnel_add(struct net_device *dev, 7213 struct udp_tunnel_info *ti) 7214 { 7215 struct bnxt *bp = netdev_priv(dev); 7216 7217 if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET) 7218 return; 7219 7220 if (!netif_running(dev)) 7221 return; 7222 7223 switch (ti->type) { 7224 case UDP_TUNNEL_TYPE_VXLAN: 7225 if (bp->vxlan_port_cnt && bp->vxlan_port != ti->port) 7226 return; 7227 7228 bp->vxlan_port_cnt++; 7229 if (bp->vxlan_port_cnt == 1) { 7230 bp->vxlan_port = ti->port; 7231 set_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event); 7232 schedule_work(&bp->sp_task); 7233 } 7234 break; 7235 case UDP_TUNNEL_TYPE_GENEVE: 7236 if (bp->nge_port_cnt && bp->nge_port != ti->port) 7237 return; 7238 7239 bp->nge_port_cnt++; 7240 if (bp->nge_port_cnt == 1) { 7241 bp->nge_port = ti->port; 7242 set_bit(BNXT_GENEVE_ADD_PORT_SP_EVENT, &bp->sp_event); 7243 } 7244 break; 7245 default: 7246 return; 7247 } 7248 7249 schedule_work(&bp->sp_task); 7250 } 7251 7252 static void bnxt_udp_tunnel_del(struct net_device *dev, 7253 struct udp_tunnel_info *ti) 7254 { 7255 struct bnxt *bp = netdev_priv(dev); 7256 7257 if (ti->sa_family != AF_INET6 && ti->sa_family != AF_INET) 7258 return; 7259 7260 if (!netif_running(dev)) 7261 return; 7262 7263 switch (ti->type) { 7264 case UDP_TUNNEL_TYPE_VXLAN: 7265 if (!bp->vxlan_port_cnt || bp->vxlan_port != ti->port) 7266 return; 7267 bp->vxlan_port_cnt--; 7268 7269 if (bp->vxlan_port_cnt != 0) 7270 return; 7271 7272 set_bit(BNXT_VXLAN_DEL_PORT_SP_EVENT, &bp->sp_event); 7273 break; 7274 case UDP_TUNNEL_TYPE_GENEVE: 7275 if (!bp->nge_port_cnt || bp->nge_port != ti->port) 7276 return; 7277 bp->nge_port_cnt--; 7278 7279 if (bp->nge_port_cnt != 0) 7280 return; 7281 7282 set_bit(BNXT_GENEVE_DEL_PORT_SP_EVENT, &bp->sp_event); 7283 break; 7284 default: 7285 return; 7286 } 7287 7288 schedule_work(&bp->sp_task); 7289 } 7290 7291 static const struct net_device_ops bnxt_netdev_ops = { 7292 .ndo_open = bnxt_open, 7293 .ndo_start_xmit = bnxt_start_xmit, 7294 .ndo_stop = bnxt_close, 7295 .ndo_get_stats64 = bnxt_get_stats64, 7296 .ndo_set_rx_mode = bnxt_set_rx_mode, 7297 .ndo_do_ioctl = bnxt_ioctl, 7298 .ndo_validate_addr = eth_validate_addr, 7299 .ndo_set_mac_address = bnxt_change_mac_addr, 7300 .ndo_change_mtu = bnxt_change_mtu, 7301 .ndo_fix_features = bnxt_fix_features, 7302 .ndo_set_features = bnxt_set_features, 7303 .ndo_tx_timeout = bnxt_tx_timeout, 7304 #ifdef CONFIG_BNXT_SRIOV 7305 .ndo_get_vf_config = bnxt_get_vf_config, 7306 .ndo_set_vf_mac = bnxt_set_vf_mac, 7307 .ndo_set_vf_vlan = bnxt_set_vf_vlan, 7308 .ndo_set_vf_rate = bnxt_set_vf_bw, 7309 .ndo_set_vf_link_state = bnxt_set_vf_link_state, 7310 .ndo_set_vf_spoofchk = bnxt_set_vf_spoofchk, 7311 #endif 7312 #ifdef CONFIG_NET_POLL_CONTROLLER 7313 .ndo_poll_controller = bnxt_poll_controller, 7314 #endif 7315 .ndo_setup_tc = bnxt_setup_tc, 7316 #ifdef CONFIG_RFS_ACCEL 7317 .ndo_rx_flow_steer = bnxt_rx_flow_steer, 7318 #endif 7319 .ndo_udp_tunnel_add = bnxt_udp_tunnel_add, 7320 .ndo_udp_tunnel_del = bnxt_udp_tunnel_del, 7321 .ndo_xdp = bnxt_xdp, 7322 }; 7323 7324 static void bnxt_remove_one(struct pci_dev *pdev) 7325 { 7326 struct net_device *dev = pci_get_drvdata(pdev); 7327 struct bnxt *bp = netdev_priv(dev); 7328 7329 if (BNXT_PF(bp)) 7330 bnxt_sriov_disable(bp); 7331 7332 pci_disable_pcie_error_reporting(pdev); 7333 unregister_netdev(dev); 7334 cancel_work_sync(&bp->sp_task); 7335 bp->sp_event = 0; 7336 7337 bnxt_clear_int_mode(bp); 7338 bnxt_hwrm_func_drv_unrgtr(bp); 7339 bnxt_free_hwrm_resources(bp); 7340 bnxt_ethtool_free(bp); 7341 bnxt_dcb_free(bp); 7342 kfree(bp->edev); 7343 bp->edev = NULL; 7344 if (bp->xdp_prog) 7345 bpf_prog_put(bp->xdp_prog); 7346 bnxt_cleanup_pci(bp); 7347 free_netdev(dev); 7348 } 7349 7350 static int bnxt_probe_phy(struct bnxt *bp) 7351 { 7352 int rc = 0; 7353 struct bnxt_link_info *link_info = &bp->link_info; 7354 7355 rc = bnxt_hwrm_phy_qcaps(bp); 7356 if (rc) { 7357 netdev_err(bp->dev, "Probe phy can't get phy capabilities (rc: %x)\n", 7358 rc); 7359 return rc; 7360 } 7361 7362 rc = bnxt_update_link(bp, false); 7363 if (rc) { 7364 netdev_err(bp->dev, "Probe phy can't update link (rc: %x)\n", 7365 rc); 7366 return rc; 7367 } 7368 7369 /* Older firmware does not have supported_auto_speeds, so assume 7370 * that all supported speeds can be autonegotiated. 7371 */ 7372 if (link_info->auto_link_speeds && !link_info->support_auto_speeds) 7373 link_info->support_auto_speeds = link_info->support_speeds; 7374 7375 /*initialize the ethool setting copy with NVM settings */ 7376 if (BNXT_AUTO_MODE(link_info->auto_mode)) { 7377 link_info->autoneg = BNXT_AUTONEG_SPEED; 7378 if (bp->hwrm_spec_code >= 0x10201) { 7379 if (link_info->auto_pause_setting & 7380 PORT_PHY_CFG_REQ_AUTO_PAUSE_AUTONEG_PAUSE) 7381 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; 7382 } else { 7383 link_info->autoneg |= BNXT_AUTONEG_FLOW_CTRL; 7384 } 7385 link_info->advertising = link_info->auto_link_speeds; 7386 } else { 7387 link_info->req_link_speed = link_info->force_link_speed; 7388 link_info->req_duplex = link_info->duplex_setting; 7389 } 7390 if (link_info->autoneg & BNXT_AUTONEG_FLOW_CTRL) 7391 link_info->req_flow_ctrl = 7392 link_info->auto_pause_setting & BNXT_LINK_PAUSE_BOTH; 7393 else 7394 link_info->req_flow_ctrl = link_info->force_pause_setting; 7395 return rc; 7396 } 7397 7398 static int bnxt_get_max_irq(struct pci_dev *pdev) 7399 { 7400 u16 ctrl; 7401 7402 if (!pdev->msix_cap) 7403 return 1; 7404 7405 pci_read_config_word(pdev, pdev->msix_cap + PCI_MSIX_FLAGS, &ctrl); 7406 return (ctrl & PCI_MSIX_FLAGS_QSIZE) + 1; 7407 } 7408 7409 static void _bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, 7410 int *max_cp) 7411 { 7412 int max_ring_grps = 0; 7413 7414 #ifdef CONFIG_BNXT_SRIOV 7415 if (!BNXT_PF(bp)) { 7416 *max_tx = bp->vf.max_tx_rings; 7417 *max_rx = bp->vf.max_rx_rings; 7418 *max_cp = min_t(int, bp->vf.max_irqs, bp->vf.max_cp_rings); 7419 *max_cp = min_t(int, *max_cp, bp->vf.max_stat_ctxs); 7420 max_ring_grps = bp->vf.max_hw_ring_grps; 7421 } else 7422 #endif 7423 { 7424 *max_tx = bp->pf.max_tx_rings; 7425 *max_rx = bp->pf.max_rx_rings; 7426 *max_cp = min_t(int, bp->pf.max_irqs, bp->pf.max_cp_rings); 7427 *max_cp = min_t(int, *max_cp, bp->pf.max_stat_ctxs); 7428 max_ring_grps = bp->pf.max_hw_ring_grps; 7429 } 7430 if (BNXT_CHIP_TYPE_NITRO_A0(bp) && BNXT_PF(bp)) { 7431 *max_cp -= 1; 7432 *max_rx -= 2; 7433 } 7434 if (bp->flags & BNXT_FLAG_AGG_RINGS) 7435 *max_rx >>= 1; 7436 *max_rx = min_t(int, *max_rx, max_ring_grps); 7437 } 7438 7439 int bnxt_get_max_rings(struct bnxt *bp, int *max_rx, int *max_tx, bool shared) 7440 { 7441 int rx, tx, cp; 7442 7443 _bnxt_get_max_rings(bp, &rx, &tx, &cp); 7444 if (!rx || !tx || !cp) 7445 return -ENOMEM; 7446 7447 *max_rx = rx; 7448 *max_tx = tx; 7449 return bnxt_trim_rings(bp, max_rx, max_tx, cp, shared); 7450 } 7451 7452 static int bnxt_get_dflt_rings(struct bnxt *bp, int *max_rx, int *max_tx, 7453 bool shared) 7454 { 7455 int rc; 7456 7457 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); 7458 if (rc && (bp->flags & BNXT_FLAG_AGG_RINGS)) { 7459 /* Not enough rings, try disabling agg rings. */ 7460 bp->flags &= ~BNXT_FLAG_AGG_RINGS; 7461 rc = bnxt_get_max_rings(bp, max_rx, max_tx, shared); 7462 if (rc) 7463 return rc; 7464 bp->flags |= BNXT_FLAG_NO_AGG_RINGS; 7465 bp->dev->hw_features &= ~NETIF_F_LRO; 7466 bp->dev->features &= ~NETIF_F_LRO; 7467 bnxt_set_ring_params(bp); 7468 } 7469 7470 if (bp->flags & BNXT_FLAG_ROCE_CAP) { 7471 int max_cp, max_stat, max_irq; 7472 7473 /* Reserve minimum resources for RoCE */ 7474 max_cp = bnxt_get_max_func_cp_rings(bp); 7475 max_stat = bnxt_get_max_func_stat_ctxs(bp); 7476 max_irq = bnxt_get_max_func_irqs(bp); 7477 if (max_cp <= BNXT_MIN_ROCE_CP_RINGS || 7478 max_irq <= BNXT_MIN_ROCE_CP_RINGS || 7479 max_stat <= BNXT_MIN_ROCE_STAT_CTXS) 7480 return 0; 7481 7482 max_cp -= BNXT_MIN_ROCE_CP_RINGS; 7483 max_irq -= BNXT_MIN_ROCE_CP_RINGS; 7484 max_stat -= BNXT_MIN_ROCE_STAT_CTXS; 7485 max_cp = min_t(int, max_cp, max_irq); 7486 max_cp = min_t(int, max_cp, max_stat); 7487 rc = bnxt_trim_rings(bp, max_rx, max_tx, max_cp, shared); 7488 if (rc) 7489 rc = 0; 7490 } 7491 return rc; 7492 } 7493 7494 static int bnxt_set_dflt_rings(struct bnxt *bp) 7495 { 7496 int dflt_rings, max_rx_rings, max_tx_rings, rc; 7497 bool sh = true; 7498 7499 if (sh) 7500 bp->flags |= BNXT_FLAG_SHARED_RINGS; 7501 dflt_rings = netif_get_num_default_rss_queues(); 7502 rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh); 7503 if (rc) 7504 return rc; 7505 bp->rx_nr_rings = min_t(int, dflt_rings, max_rx_rings); 7506 bp->tx_nr_rings_per_tc = min_t(int, dflt_rings, max_tx_rings); 7507 7508 rc = bnxt_hwrm_reserve_tx_rings(bp, &bp->tx_nr_rings_per_tc); 7509 if (rc) 7510 netdev_warn(bp->dev, "Unable to reserve tx rings\n"); 7511 7512 bp->tx_nr_rings = bp->tx_nr_rings_per_tc; 7513 bp->cp_nr_rings = sh ? max_t(int, bp->tx_nr_rings, bp->rx_nr_rings) : 7514 bp->tx_nr_rings + bp->rx_nr_rings; 7515 bp->num_stat_ctxs = bp->cp_nr_rings; 7516 if (BNXT_CHIP_TYPE_NITRO_A0(bp)) { 7517 bp->rx_nr_rings++; 7518 bp->cp_nr_rings++; 7519 } 7520 return rc; 7521 } 7522 7523 void bnxt_restore_pf_fw_resources(struct bnxt *bp) 7524 { 7525 ASSERT_RTNL(); 7526 bnxt_hwrm_func_qcaps(bp); 7527 bnxt_subtract_ulp_resources(bp, BNXT_ROCE_ULP); 7528 } 7529 7530 static void bnxt_parse_log_pcie_link(struct bnxt *bp) 7531 { 7532 enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN; 7533 enum pci_bus_speed speed = PCI_SPEED_UNKNOWN; 7534 7535 if (pcie_get_minimum_link(bp->pdev, &speed, &width) || 7536 speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN) 7537 netdev_info(bp->dev, "Failed to determine PCIe Link Info\n"); 7538 else 7539 netdev_info(bp->dev, "PCIe: Speed %s Width x%d\n", 7540 speed == PCIE_SPEED_2_5GT ? "2.5GT/s" : 7541 speed == PCIE_SPEED_5_0GT ? "5.0GT/s" : 7542 speed == PCIE_SPEED_8_0GT ? "8.0GT/s" : 7543 "Unknown", width); 7544 } 7545 7546 static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 7547 { 7548 static int version_printed; 7549 struct net_device *dev; 7550 struct bnxt *bp; 7551 int rc, max_irqs; 7552 7553 if (pci_is_bridge(pdev)) 7554 return -ENODEV; 7555 7556 if (version_printed++ == 0) 7557 pr_info("%s", version); 7558 7559 max_irqs = bnxt_get_max_irq(pdev); 7560 dev = alloc_etherdev_mq(sizeof(*bp), max_irqs); 7561 if (!dev) 7562 return -ENOMEM; 7563 7564 bp = netdev_priv(dev); 7565 7566 if (bnxt_vf_pciid(ent->driver_data)) 7567 bp->flags |= BNXT_FLAG_VF; 7568 7569 if (pdev->msix_cap) 7570 bp->flags |= BNXT_FLAG_MSIX_CAP; 7571 7572 rc = bnxt_init_board(pdev, dev); 7573 if (rc < 0) 7574 goto init_err_free; 7575 7576 dev->netdev_ops = &bnxt_netdev_ops; 7577 dev->watchdog_timeo = BNXT_TX_TIMEOUT; 7578 dev->ethtool_ops = &bnxt_ethtool_ops; 7579 pci_set_drvdata(pdev, dev); 7580 7581 rc = bnxt_alloc_hwrm_resources(bp); 7582 if (rc) 7583 goto init_err_pci_clean; 7584 7585 mutex_init(&bp->hwrm_cmd_lock); 7586 rc = bnxt_hwrm_ver_get(bp); 7587 if (rc) 7588 goto init_err_pci_clean; 7589 7590 rc = bnxt_hwrm_func_reset(bp); 7591 if (rc) 7592 goto init_err_pci_clean; 7593 7594 bnxt_hwrm_fw_set_time(bp); 7595 7596 dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | 7597 NETIF_F_TSO | NETIF_F_TSO6 | 7598 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | 7599 NETIF_F_GSO_IPXIP4 | 7600 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | 7601 NETIF_F_GSO_PARTIAL | NETIF_F_RXHASH | 7602 NETIF_F_RXCSUM | NETIF_F_GRO; 7603 7604 if (!BNXT_CHIP_TYPE_NITRO_A0(bp)) 7605 dev->hw_features |= NETIF_F_LRO; 7606 7607 dev->hw_enc_features = 7608 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | 7609 NETIF_F_TSO | NETIF_F_TSO6 | 7610 NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_GRE | 7611 NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_GSO_GRE_CSUM | 7612 NETIF_F_GSO_IPXIP4 | NETIF_F_GSO_PARTIAL; 7613 dev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM | 7614 NETIF_F_GSO_GRE_CSUM; 7615 dev->vlan_features = dev->hw_features | NETIF_F_HIGHDMA; 7616 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_TX | 7617 NETIF_F_HW_VLAN_STAG_RX | NETIF_F_HW_VLAN_STAG_TX; 7618 dev->features |= dev->hw_features | NETIF_F_HIGHDMA; 7619 dev->priv_flags |= IFF_UNICAST_FLT; 7620 7621 /* MTU range: 60 - 9500 */ 7622 dev->min_mtu = ETH_ZLEN; 7623 dev->max_mtu = BNXT_MAX_MTU; 7624 7625 bnxt_dcb_init(bp); 7626 7627 #ifdef CONFIG_BNXT_SRIOV 7628 init_waitqueue_head(&bp->sriov_cfg_wait); 7629 #endif 7630 bp->gro_func = bnxt_gro_func_5730x; 7631 if (BNXT_CHIP_NUM_57X1X(bp->chip_num)) 7632 bp->gro_func = bnxt_gro_func_5731x; 7633 7634 rc = bnxt_hwrm_func_drv_rgtr(bp); 7635 if (rc) 7636 goto init_err_pci_clean; 7637 7638 rc = bnxt_hwrm_func_rgtr_async_events(bp, NULL, 0); 7639 if (rc) 7640 goto init_err_pci_clean; 7641 7642 bp->ulp_probe = bnxt_ulp_probe; 7643 7644 /* Get the MAX capabilities for this function */ 7645 rc = bnxt_hwrm_func_qcaps(bp); 7646 if (rc) { 7647 netdev_err(bp->dev, "hwrm query capability failure rc: %x\n", 7648 rc); 7649 rc = -1; 7650 goto init_err_pci_clean; 7651 } 7652 7653 rc = bnxt_hwrm_queue_qportcfg(bp); 7654 if (rc) { 7655 netdev_err(bp->dev, "hwrm query qportcfg failure rc: %x\n", 7656 rc); 7657 rc = -1; 7658 goto init_err_pci_clean; 7659 } 7660 7661 bnxt_hwrm_func_qcfg(bp); 7662 bnxt_hwrm_port_led_qcaps(bp); 7663 bnxt_ethtool_init(bp); 7664 7665 bnxt_set_rx_skb_mode(bp, false); 7666 bnxt_set_tpa_flags(bp); 7667 bnxt_set_ring_params(bp); 7668 bnxt_set_max_func_irqs(bp, max_irqs); 7669 rc = bnxt_set_dflt_rings(bp); 7670 if (rc) { 7671 netdev_err(bp->dev, "Not enough rings available.\n"); 7672 rc = -ENOMEM; 7673 goto init_err_pci_clean; 7674 } 7675 7676 /* Default RSS hash cfg. */ 7677 bp->rss_hash_cfg = VNIC_RSS_CFG_REQ_HASH_TYPE_IPV4 | 7678 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV4 | 7679 VNIC_RSS_CFG_REQ_HASH_TYPE_IPV6 | 7680 VNIC_RSS_CFG_REQ_HASH_TYPE_TCP_IPV6; 7681 if (!BNXT_CHIP_NUM_57X0X(bp->chip_num) && 7682 !BNXT_CHIP_TYPE_NITRO_A0(bp) && 7683 bp->hwrm_spec_code >= 0x10501) { 7684 bp->flags |= BNXT_FLAG_UDP_RSS_CAP; 7685 bp->rss_hash_cfg |= VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV4 | 7686 VNIC_RSS_CFG_REQ_HASH_TYPE_UDP_IPV6; 7687 } 7688 7689 bnxt_hwrm_vnic_qcaps(bp); 7690 if (bnxt_rfs_supported(bp)) { 7691 dev->hw_features |= NETIF_F_NTUPLE; 7692 if (bnxt_rfs_capable(bp)) { 7693 bp->flags |= BNXT_FLAG_RFS; 7694 dev->features |= NETIF_F_NTUPLE; 7695 } 7696 } 7697 7698 if (dev->hw_features & NETIF_F_HW_VLAN_CTAG_RX) 7699 bp->flags |= BNXT_FLAG_STRIP_VLAN; 7700 7701 rc = bnxt_probe_phy(bp); 7702 if (rc) 7703 goto init_err_pci_clean; 7704 7705 rc = bnxt_init_int_mode(bp); 7706 if (rc) 7707 goto init_err_pci_clean; 7708 7709 bnxt_get_wol_settings(bp); 7710 if (bp->flags & BNXT_FLAG_WOL_CAP) 7711 device_set_wakeup_enable(&pdev->dev, bp->wol); 7712 else 7713 device_set_wakeup_capable(&pdev->dev, false); 7714 7715 rc = register_netdev(dev); 7716 if (rc) 7717 goto init_err_clr_int; 7718 7719 netdev_info(dev, "%s found at mem %lx, node addr %pM\n", 7720 board_info[ent->driver_data].name, 7721 (long)pci_resource_start(pdev, 0), dev->dev_addr); 7722 7723 bnxt_parse_log_pcie_link(bp); 7724 7725 return 0; 7726 7727 init_err_clr_int: 7728 bnxt_clear_int_mode(bp); 7729 7730 init_err_pci_clean: 7731 bnxt_cleanup_pci(bp); 7732 7733 init_err_free: 7734 free_netdev(dev); 7735 return rc; 7736 } 7737 7738 static void bnxt_shutdown(struct pci_dev *pdev) 7739 { 7740 struct net_device *dev = pci_get_drvdata(pdev); 7741 struct bnxt *bp; 7742 7743 if (!dev) 7744 return; 7745 7746 rtnl_lock(); 7747 bp = netdev_priv(dev); 7748 if (!bp) 7749 goto shutdown_exit; 7750 7751 if (netif_running(dev)) 7752 dev_close(dev); 7753 7754 if (system_state == SYSTEM_POWER_OFF) { 7755 bnxt_clear_int_mode(bp); 7756 pci_wake_from_d3(pdev, bp->wol); 7757 pci_set_power_state(pdev, PCI_D3hot); 7758 } 7759 7760 shutdown_exit: 7761 rtnl_unlock(); 7762 } 7763 7764 #ifdef CONFIG_PM_SLEEP 7765 static int bnxt_suspend(struct device *device) 7766 { 7767 struct pci_dev *pdev = to_pci_dev(device); 7768 struct net_device *dev = pci_get_drvdata(pdev); 7769 struct bnxt *bp = netdev_priv(dev); 7770 int rc = 0; 7771 7772 rtnl_lock(); 7773 if (netif_running(dev)) { 7774 netif_device_detach(dev); 7775 rc = bnxt_close(dev); 7776 } 7777 bnxt_hwrm_func_drv_unrgtr(bp); 7778 rtnl_unlock(); 7779 return rc; 7780 } 7781 7782 static int bnxt_resume(struct device *device) 7783 { 7784 struct pci_dev *pdev = to_pci_dev(device); 7785 struct net_device *dev = pci_get_drvdata(pdev); 7786 struct bnxt *bp = netdev_priv(dev); 7787 int rc = 0; 7788 7789 rtnl_lock(); 7790 if (bnxt_hwrm_ver_get(bp) || bnxt_hwrm_func_drv_rgtr(bp)) { 7791 rc = -ENODEV; 7792 goto resume_exit; 7793 } 7794 rc = bnxt_hwrm_func_reset(bp); 7795 if (rc) { 7796 rc = -EBUSY; 7797 goto resume_exit; 7798 } 7799 bnxt_get_wol_settings(bp); 7800 if (netif_running(dev)) { 7801 rc = bnxt_open(dev); 7802 if (!rc) 7803 netif_device_attach(dev); 7804 } 7805 7806 resume_exit: 7807 rtnl_unlock(); 7808 return rc; 7809 } 7810 7811 static SIMPLE_DEV_PM_OPS(bnxt_pm_ops, bnxt_suspend, bnxt_resume); 7812 #define BNXT_PM_OPS (&bnxt_pm_ops) 7813 7814 #else 7815 7816 #define BNXT_PM_OPS NULL 7817 7818 #endif /* CONFIG_PM_SLEEP */ 7819 7820 /** 7821 * bnxt_io_error_detected - called when PCI error is detected 7822 * @pdev: Pointer to PCI device 7823 * @state: The current pci connection state 7824 * 7825 * This function is called after a PCI bus error affecting 7826 * this device has been detected. 7827 */ 7828 static pci_ers_result_t bnxt_io_error_detected(struct pci_dev *pdev, 7829 pci_channel_state_t state) 7830 { 7831 struct net_device *netdev = pci_get_drvdata(pdev); 7832 struct bnxt *bp = netdev_priv(netdev); 7833 7834 netdev_info(netdev, "PCI I/O error detected\n"); 7835 7836 rtnl_lock(); 7837 netif_device_detach(netdev); 7838 7839 bnxt_ulp_stop(bp); 7840 7841 if (state == pci_channel_io_perm_failure) { 7842 rtnl_unlock(); 7843 return PCI_ERS_RESULT_DISCONNECT; 7844 } 7845 7846 if (netif_running(netdev)) 7847 bnxt_close(netdev); 7848 7849 pci_disable_device(pdev); 7850 rtnl_unlock(); 7851 7852 /* Request a slot slot reset. */ 7853 return PCI_ERS_RESULT_NEED_RESET; 7854 } 7855 7856 /** 7857 * bnxt_io_slot_reset - called after the pci bus has been reset. 7858 * @pdev: Pointer to PCI device 7859 * 7860 * Restart the card from scratch, as if from a cold-boot. 7861 * At this point, the card has exprienced a hard reset, 7862 * followed by fixups by BIOS, and has its config space 7863 * set up identically to what it was at cold boot. 7864 */ 7865 static pci_ers_result_t bnxt_io_slot_reset(struct pci_dev *pdev) 7866 { 7867 struct net_device *netdev = pci_get_drvdata(pdev); 7868 struct bnxt *bp = netdev_priv(netdev); 7869 int err = 0; 7870 pci_ers_result_t result = PCI_ERS_RESULT_DISCONNECT; 7871 7872 netdev_info(bp->dev, "PCI Slot Reset\n"); 7873 7874 rtnl_lock(); 7875 7876 if (pci_enable_device(pdev)) { 7877 dev_err(&pdev->dev, 7878 "Cannot re-enable PCI device after reset.\n"); 7879 } else { 7880 pci_set_master(pdev); 7881 7882 err = bnxt_hwrm_func_reset(bp); 7883 if (!err && netif_running(netdev)) 7884 err = bnxt_open(netdev); 7885 7886 if (!err) { 7887 result = PCI_ERS_RESULT_RECOVERED; 7888 bnxt_ulp_start(bp); 7889 } 7890 } 7891 7892 if (result != PCI_ERS_RESULT_RECOVERED && netif_running(netdev)) 7893 dev_close(netdev); 7894 7895 rtnl_unlock(); 7896 7897 err = pci_cleanup_aer_uncorrect_error_status(pdev); 7898 if (err) { 7899 dev_err(&pdev->dev, 7900 "pci_cleanup_aer_uncorrect_error_status failed 0x%0x\n", 7901 err); /* non-fatal, continue */ 7902 } 7903 7904 return PCI_ERS_RESULT_RECOVERED; 7905 } 7906 7907 /** 7908 * bnxt_io_resume - called when traffic can start flowing again. 7909 * @pdev: Pointer to PCI device 7910 * 7911 * This callback is called when the error recovery driver tells 7912 * us that its OK to resume normal operation. 7913 */ 7914 static void bnxt_io_resume(struct pci_dev *pdev) 7915 { 7916 struct net_device *netdev = pci_get_drvdata(pdev); 7917 7918 rtnl_lock(); 7919 7920 netif_device_attach(netdev); 7921 7922 rtnl_unlock(); 7923 } 7924 7925 static const struct pci_error_handlers bnxt_err_handler = { 7926 .error_detected = bnxt_io_error_detected, 7927 .slot_reset = bnxt_io_slot_reset, 7928 .resume = bnxt_io_resume 7929 }; 7930 7931 static struct pci_driver bnxt_pci_driver = { 7932 .name = DRV_MODULE_NAME, 7933 .id_table = bnxt_pci_tbl, 7934 .probe = bnxt_init_one, 7935 .remove = bnxt_remove_one, 7936 .shutdown = bnxt_shutdown, 7937 .driver.pm = BNXT_PM_OPS, 7938 .err_handler = &bnxt_err_handler, 7939 #if defined(CONFIG_BNXT_SRIOV) 7940 .sriov_configure = bnxt_sriov_configure, 7941 #endif 7942 }; 7943 7944 module_pci_driver(bnxt_pci_driver); 7945