Lines Matching +full:disable +full:- +full:eop
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2019 - 2022 Beijing WangXun Technology Co., Ltd. */
32 /* L3: ip non-tunnel */
48 /* IPv4 --> IPv4/IPv6 */
60 /* IPv4 --> GRE/NAT --> NONE/IPv4/IPv6 */
73 /* IPv4 --> GRE/NAT --> MAC --> NONE/IPv4/IPv6 */
86 /* IPv4 --> GRE/NAT --> MAC+VLAN --> NONE/IPv4/IPv6 */
99 /* IPv6 --> IPv4/IPv6 */
111 /* IPv6 --> GRE/NAT -> NONE/IPv4/IPv6 */
124 /* IPv6 --> GRE/NAT -> MAC -> NONE/IPv4/IPv6 */
137 /* IPv6 --> GRE/NAT -> MAC--> NONE/IPv */
156 /* wx_test_staterr - tests bits in Rx descriptor status and error fields */
160 return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits); in wx_test_staterr()
166 struct sk_buff *skb = rx_buffer->skb; in wx_dma_sync_frag()
167 skb_frag_t *frag = &skb_shinfo(skb)->frags[0]; in wx_dma_sync_frag()
169 dma_sync_single_range_for_cpu(rx_ring->dev, in wx_dma_sync_frag()
170 WX_CB(skb)->dma, in wx_dma_sync_frag()
176 if (unlikely(WX_CB(skb)->page_released)) in wx_dma_sync_frag()
177 page_pool_put_full_page(rx_ring->page_pool, rx_buffer->page, false); in wx_dma_sync_frag()
188 rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean]; in wx_get_rx_buffer()
189 size = le16_to_cpu(rx_desc->wb.upper.length); in wx_get_rx_buffer()
192 *rx_buffer_pgcnt = page_count(rx_buffer->page); in wx_get_rx_buffer()
197 prefetchw(rx_buffer->page); in wx_get_rx_buffer()
198 *skb = rx_buffer->skb; in wx_get_rx_buffer()
202 * Only unmap it when EOP is reached in wx_get_rx_buffer()
213 dma_sync_single_range_for_cpu(rx_ring->dev, in wx_get_rx_buffer()
214 rx_buffer->dma, in wx_get_rx_buffer()
215 rx_buffer->page_offset, in wx_get_rx_buffer()
227 if (!IS_ERR(skb) && WX_CB(skb)->dma == rx_buffer->dma) in wx_put_rx_buffer()
229 WX_CB(skb)->page_released = true; in wx_put_rx_buffer()
232 rx_buffer->page = NULL; in wx_put_rx_buffer()
233 rx_buffer->skb = NULL; in wx_put_rx_buffer()
240 unsigned int size = le16_to_cpu(rx_desc->wb.upper.length); in wx_build_skb()
246 struct sk_buff *skb = rx_buffer->skb; in wx_build_skb()
249 void *page_addr = page_address(rx_buffer->page) + in wx_build_skb()
250 rx_buffer->page_offset; in wx_build_skb()
259 skb = napi_alloc_skb(&rx_ring->q_vector->napi, WX_RXBUFFER_256); in wx_build_skb()
263 /* we will be copying header into skb->data in in wx_build_skb()
267 prefetchw(skb->data); in wx_build_skb()
272 page_pool_put_full_page(rx_ring->page_pool, rx_buffer->page, true); in wx_build_skb()
279 WX_CB(skb)->dma = rx_buffer->dma; in wx_build_skb()
281 skb_add_rx_frag(skb, 0, rx_buffer->page, in wx_build_skb()
282 rx_buffer->page_offset, in wx_build_skb()
287 skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, rx_buffer->page, in wx_build_skb()
288 rx_buffer->page_offset, size, truesize); in wx_build_skb()
294 rx_buffer->page_offset ^= truesize; in wx_build_skb()
297 rx_buffer->page_offset += truesize; in wx_build_skb()
306 struct page *page = bi->page; in wx_alloc_mapped_page()
313 page = page_pool_dev_alloc_pages(rx_ring->page_pool); in wx_alloc_mapped_page()
317 bi->page_dma = dma; in wx_alloc_mapped_page()
318 bi->page = page; in wx_alloc_mapped_page()
319 bi->page_offset = 0; in wx_alloc_mapped_page()
325 * wx_alloc_rx_buffers - Replace used receive buffers
331 u16 i = rx_ring->next_to_use; in wx_alloc_rx_buffers()
340 bi = &rx_ring->rx_buffer_info[i]; in wx_alloc_rx_buffers()
341 i -= rx_ring->count; in wx_alloc_rx_buffers()
348 dma_sync_single_range_for_device(rx_ring->dev, bi->dma, in wx_alloc_rx_buffers()
349 bi->page_offset, in wx_alloc_rx_buffers()
353 rx_desc->read.pkt_addr = in wx_alloc_rx_buffers()
354 cpu_to_le64(bi->page_dma + bi->page_offset); in wx_alloc_rx_buffers()
361 bi = rx_ring->rx_buffer_info; in wx_alloc_rx_buffers()
362 i -= rx_ring->count; in wx_alloc_rx_buffers()
366 rx_desc->wb.upper.status_error = 0; in wx_alloc_rx_buffers()
368 cleaned_count--; in wx_alloc_rx_buffers()
371 i += rx_ring->count; in wx_alloc_rx_buffers()
373 if (rx_ring->next_to_use != i) { in wx_alloc_rx_buffers()
374 rx_ring->next_to_use = i; in wx_alloc_rx_buffers()
376 rx_ring->next_to_alloc = i; in wx_alloc_rx_buffers()
380 * applicable for weak-ordered memory model archs, in wx_alloc_rx_buffers()
381 * such as IA-64). in wx_alloc_rx_buffers()
384 writel(i, rx_ring->tail); in wx_alloc_rx_buffers()
390 u16 ntc = ring->next_to_clean; in wx_desc_unused()
391 u16 ntu = ring->next_to_use; in wx_desc_unused()
393 return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1; in wx_desc_unused()
397 * wx_is_non_eop - process handling of non-EOP buffers
402 * This function updates next to clean. If the buffer is an EOP buffer
405 * that this is in fact a non-EOP buffer.
411 u32 ntc = rx_ring->next_to_clean + 1; in wx_is_non_eop()
414 ntc = (ntc < rx_ring->count) ? ntc : 0; in wx_is_non_eop()
415 rx_ring->next_to_clean = ntc; in wx_is_non_eop()
423 rx_ring->rx_buffer_info[ntc].skb = skb; in wx_is_non_eop()
424 rx_ring->rx_stats.non_eop_descs++; in wx_is_non_eop()
431 skb_frag_t *frag = &skb_shinfo(skb)->frags[0]; in wx_pull_tail()
442 * 60 bytes if the skb->len is less than 60 for skb_pad. in wx_pull_tail()
444 pull_len = eth_get_headlen(skb->dev, va, WX_RXBUFFER_256); in wx_pull_tail()
452 skb->data_len -= pull_len; in wx_pull_tail()
453 skb->tail += pull_len; in wx_pull_tail()
457 * wx_cleanup_headers - Correct corrupted or empty headers
459 * @rx_desc: pointer to the EOP Rx descriptor
478 struct net_device *netdev = rx_ring->netdev; in wx_cleanup_headers()
483 !(netdev->features & NETIF_F_RXALL))) { in wx_cleanup_headers()
505 if (!(ring->netdev->features & NETIF_F_RXHASH)) in wx_rx_hash()
508 rss_type = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & in wx_rx_hash()
514 skb_set_hash(skb, le32_to_cpu(rx_desc->wb.lower.hi_dword.rss), in wx_rx_hash()
520 * wx_rx_checksum - indicate in skb if hw indicated a good cksum
533 if (!(ring->netdev->features & NETIF_F_RXCSUM)) in wx_rx_checksum()
541 ring->rx_stats.csum_err++; in wx_rx_checksum()
555 ring->rx_stats.csum_err++; in wx_rx_checksum()
560 skb->ip_summed = CHECKSUM_UNNECESSARY; in wx_rx_checksum()
568 ring->rx_stats.csum_good_cnt++; in wx_rx_checksum()
577 if ((ring->netdev->features & in wx_rx_vlan()
580 idx = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info) & in wx_rx_vlan()
582 ethertype = ring->q_vector->wx->tpid[idx]; in wx_rx_vlan()
584 le16_to_cpu(rx_desc->wb.upper.vlan)); in wx_rx_vlan()
589 * wx_process_skb_fields - Populate skb header fields from Rx descriptor
591 * @rx_desc: pointer to the EOP Rx descriptor
605 skb_record_rx_queue(skb, rx_ring->queue_index); in wx_process_skb_fields()
606 skb->protocol = eth_type_trans(skb, rx_ring->netdev); in wx_process_skb_fields()
610 * wx_clean_rx_irq - Clean completed descriptors from Rx ring - bounce buf
641 rx_desc = WX_RX_DESC(rx_ring, rx_ring->next_to_clean); in wx_clean_rx_irq()
658 rx_ring->rx_stats.alloc_rx_buff_failed++; in wx_clean_rx_irq()
674 total_rx_bytes += skb->len; in wx_clean_rx_irq()
678 napi_gro_receive(&q_vector->napi, skb); in wx_clean_rx_irq()
684 u64_stats_update_begin(&rx_ring->syncp); in wx_clean_rx_irq()
685 rx_ring->stats.packets += total_rx_packets; in wx_clean_rx_irq()
686 rx_ring->stats.bytes += total_rx_bytes; in wx_clean_rx_irq()
687 u64_stats_update_end(&rx_ring->syncp); in wx_clean_rx_irq()
688 q_vector->rx.total_packets += total_rx_packets; in wx_clean_rx_irq()
689 q_vector->rx.total_bytes += total_rx_bytes; in wx_clean_rx_irq()
696 return netdev_get_tx_queue(ring->netdev, ring->queue_index); in wx_txring_txq()
700 * wx_clean_tx_irq - Reclaim resources after transmit completes
708 unsigned int budget = q_vector->wx->tx_work_limit; in wx_clean_tx_irq()
710 unsigned int i = tx_ring->next_to_clean; in wx_clean_tx_irq()
714 if (!netif_carrier_ok(tx_ring->netdev)) in wx_clean_tx_irq()
717 tx_buffer = &tx_ring->tx_buffer_info[i]; in wx_clean_tx_irq()
719 i -= tx_ring->count; in wx_clean_tx_irq()
722 union wx_tx_desc *eop_desc = tx_buffer->next_to_watch; in wx_clean_tx_irq()
732 if (!(eop_desc->wb.status & cpu_to_le32(WX_TXD_STAT_DD))) in wx_clean_tx_irq()
736 tx_buffer->next_to_watch = NULL; in wx_clean_tx_irq()
739 total_bytes += tx_buffer->bytecount; in wx_clean_tx_irq()
740 total_packets += tx_buffer->gso_segs; in wx_clean_tx_irq()
743 napi_consume_skb(tx_buffer->skb, napi_budget); in wx_clean_tx_irq()
746 dma_unmap_single(tx_ring->dev, in wx_clean_tx_irq()
760 i -= tx_ring->count; in wx_clean_tx_irq()
761 tx_buffer = tx_ring->tx_buffer_info; in wx_clean_tx_irq()
767 dma_unmap_page(tx_ring->dev, in wx_clean_tx_irq()
780 i -= tx_ring->count; in wx_clean_tx_irq()
781 tx_buffer = tx_ring->tx_buffer_info; in wx_clean_tx_irq()
789 budget--; in wx_clean_tx_irq()
792 i += tx_ring->count; in wx_clean_tx_irq()
793 tx_ring->next_to_clean = i; in wx_clean_tx_irq()
794 u64_stats_update_begin(&tx_ring->syncp); in wx_clean_tx_irq()
795 tx_ring->stats.bytes += total_bytes; in wx_clean_tx_irq()
796 tx_ring->stats.packets += total_packets; in wx_clean_tx_irq()
797 u64_stats_update_end(&tx_ring->syncp); in wx_clean_tx_irq()
798 q_vector->tx.total_bytes += total_bytes; in wx_clean_tx_irq()
799 q_vector->tx.total_packets += total_packets; in wx_clean_tx_irq()
805 if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) && in wx_clean_tx_irq()
812 if (__netif_subqueue_stopped(tx_ring->netdev, in wx_clean_tx_irq()
813 tx_ring->queue_index) && in wx_clean_tx_irq()
814 netif_running(tx_ring->netdev)) { in wx_clean_tx_irq()
815 netif_wake_subqueue(tx_ring->netdev, in wx_clean_tx_irq()
816 tx_ring->queue_index); in wx_clean_tx_irq()
817 ++tx_ring->tx_stats.restart_queue; in wx_clean_tx_irq()
825 * wx_poll - NAPI polling RX/TX cleanup routine
835 struct wx *wx = q_vector->wx; in wx_poll()
839 wx_for_each_ring(ring, q_vector->tx) { in wx_poll()
851 if (q_vector->rx.count > 1) in wx_poll()
852 per_ring_budget = max(budget / q_vector->rx.count, 1); in wx_poll()
856 wx_for_each_ring(ring, q_vector->rx) { in wx_poll()
870 if (netif_running(wx->netdev)) in wx_poll()
871 wx_intr_enable(wx, WX_INTR_Q(q_vector->v_idx)); in wx_poll()
874 return min(work_done, budget - 1); in wx_poll()
882 netif_stop_subqueue(tx_ring->netdev, tx_ring->queue_index); in wx_maybe_stop_tx()
891 return -EBUSY; in wx_maybe_stop_tx()
893 /* A reprieve! - use start_queue because it doesn't call schedule */ in wx_maybe_stop_tx()
894 netif_start_subqueue(tx_ring->netdev, tx_ring->queue_index); in wx_maybe_stop_tx()
895 ++tx_ring->tx_stats.restart_queue; in wx_maybe_stop_tx()
934 tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status); in wx_tx_olinfo_status()
941 struct sk_buff *skb = first->skb; in wx_tx_map()
943 u32 tx_flags = first->tx_flags; in wx_tx_map()
944 u16 i = tx_ring->next_to_use; in wx_tx_map()
953 wx_tx_olinfo_status(tx_desc, tx_flags, skb->len - hdr_len); in wx_tx_map()
956 data_len = skb->data_len; in wx_tx_map()
957 dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE); in wx_tx_map()
961 for (frag = &skb_shinfo(skb)->frags[0];; frag++) { in wx_tx_map()
962 if (dma_mapping_error(tx_ring->dev, dma)) in wx_tx_map()
969 tx_desc->read.buffer_addr = cpu_to_le64(dma); in wx_tx_map()
972 tx_desc->read.cmd_type_len = in wx_tx_map()
977 if (i == tx_ring->count) { in wx_tx_map()
981 tx_desc->read.olinfo_status = 0; in wx_tx_map()
984 size -= WX_MAX_DATA_PER_TXD; in wx_tx_map()
986 tx_desc->read.buffer_addr = cpu_to_le64(dma); in wx_tx_map()
992 tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type ^ size); in wx_tx_map()
996 if (i == tx_ring->count) { in wx_tx_map()
1000 tx_desc->read.olinfo_status = 0; in wx_tx_map()
1004 data_len -= size; in wx_tx_map()
1006 dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size, in wx_tx_map()
1009 tx_buffer = &tx_ring->tx_buffer_info[i]; in wx_tx_map()
1012 /* write last descriptor with RS and EOP bits */ in wx_tx_map()
1014 tx_desc->read.cmd_type_len = cpu_to_le32(cmd_type); in wx_tx_map()
1016 netdev_tx_sent_queue(wx_txring_txq(tx_ring), first->bytecount); in wx_tx_map()
1021 * are new descriptors to fetch. (Only applicable for weak-ordered in wx_tx_map()
1022 * memory model archs, such as IA-64). in wx_tx_map()
1030 first->next_to_watch = tx_desc; in wx_tx_map()
1033 if (i == tx_ring->count) in wx_tx_map()
1036 tx_ring->next_to_use = i; in wx_tx_map()
1041 writel(i, tx_ring->tail); in wx_tx_map()
1045 dev_err(tx_ring->dev, "TX DMA map failed\n"); in wx_tx_map()
1049 tx_buffer = &tx_ring->tx_buffer_info[i]; in wx_tx_map()
1051 dma_unmap_page(tx_ring->dev, in wx_tx_map()
1059 i += tx_ring->count; in wx_tx_map()
1060 i--; in wx_tx_map()
1063 dev_kfree_skb_any(first->skb); in wx_tx_map()
1064 first->skb = NULL; in wx_tx_map()
1066 tx_ring->next_to_use = i; in wx_tx_map()
1073 u16 i = tx_ring->next_to_use; in wx_tx_ctxtdesc()
1077 tx_ring->next_to_use = (i < tx_ring->count) ? i : 0; in wx_tx_ctxtdesc()
1081 context_desc->vlan_macip_lens = cpu_to_le32(vlan_macip_lens); in wx_tx_ctxtdesc()
1082 context_desc->seqnum_seed = cpu_to_le32(fcoe_sof_eof); in wx_tx_ctxtdesc()
1083 context_desc->type_tucmd_mlhl = cpu_to_le32(type_tucmd); in wx_tx_ctxtdesc()
1084 context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx); in wx_tx_ctxtdesc()
1089 struct ipv6hdr *hdr = (struct ipv6hdr *)(skb->data + offset); in wx_get_ipv6_proto()
1091 *nexthdr = hdr->nexthdr; in wx_get_ipv6_proto()
1103 *nexthdr = hp->nexthdr; in wx_get_ipv6_proto()
1116 struct sk_buff *skb = first->skb; in wx_encode_tx_desc_ptype()
1118 if (skb->encapsulation) { in wx_encode_tx_desc_ptype()
1121 switch (first->protocol) { in wx_encode_tx_desc_ptype()
1123 tun_prot = ip_hdr(skb)->protocol; in wx_encode_tx_desc_ptype()
1139 if (skb->inner_protocol_type != ENCAP_TYPE_ETHER || in wx_encode_tx_desc_ptype()
1140 skb->inner_protocol != htons(ETH_P_TEB)) { in wx_encode_tx_desc_ptype()
1143 if (((struct ethhdr *)skb_inner_mac_header(skb))->h_proto in wx_encode_tx_desc_ptype()
1152 if (skb->inner_protocol == htons(ETH_P_IP) || in wx_encode_tx_desc_ptype()
1153 skb->inner_protocol == htons(ETH_P_IPV6)) { in wx_encode_tx_desc_ptype()
1156 if (((struct ethhdr *)skb_inner_mac_header(skb))->h_proto in wx_encode_tx_desc_ptype()
1166 switch (hdr.ipv4->version) { in wx_encode_tx_desc_ptype()
1168 l4_prot = hdr.ipv4->protocol; in wx_encode_tx_desc_ptype()
1178 switch (first->protocol) { in wx_encode_tx_desc_ptype()
1180 l4_prot = ip_hdr(skb)->protocol; in wx_encode_tx_desc_ptype()
1213 struct net_device *netdev = tx_ring->netdev; in wx_tso()
1215 struct sk_buff *skb = first->skb; in wx_tso()
1216 bool enc = skb->encapsulation; in wx_tso()
1223 if (skb->ip_summed != CHECKSUM_PARTIAL) in wx_tso()
1235 if (iph->version == 4) { in wx_tso()
1237 iph->tot_len = 0; in wx_tso()
1238 iph->check = 0; in wx_tso()
1239 tcph->check = ~csum_tcpudp_magic(iph->saddr, in wx_tso()
1240 iph->daddr, 0, in wx_tso()
1242 first->tx_flags |= WX_TX_FLAGS_TSO | in wx_tso()
1246 } else if (iph->version == 6 && skb_is_gso_v6(skb)) { in wx_tso()
1249 ipv6h->payload_len = 0; in wx_tso()
1250 tcph->check = ~csum_ipv6_magic(&ipv6h->saddr, in wx_tso()
1251 &ipv6h->daddr, 0, in wx_tso()
1253 first->tx_flags |= WX_TX_FLAGS_TSO | in wx_tso()
1260 *hdr_len = enc ? (skb_inner_transport_header(skb) - skb->data) : in wx_tso()
1265 first->gso_segs = skb_shinfo(skb)->gso_segs; in wx_tso()
1266 first->bytecount += (first->gso_segs - 1) * *hdr_len; in wx_tso()
1270 mss_l4len_idx |= skb_shinfo(skb)->gso_size << WX_TXD_MSS_SHIFT; in wx_tso()
1274 switch (first->protocol) { in wx_tso()
1276 tun_prot = ip_hdr(skb)->protocol; in wx_tso()
1277 first->tx_flags |= WX_TX_FLAGS_OUTER_IPV4; in wx_tso()
1280 tun_prot = ipv6_hdr(skb)->nexthdr; in wx_tso()
1290 (((skb_inner_mac_header(skb) - in wx_tso()
1298 (((skb_inner_mac_header(skb) - in wx_tso()
1303 tunhdr_eiplen_tunlen = (((char *)inner_ip_hdr(skb) - in wx_tso()
1316 vlan_macip_lens |= first->tx_flags & WX_TX_FLAGS_VLAN_MASK; in wx_tso()
1319 if (skb->vlan_proto == htons(ETH_P_8021AD) && in wx_tso()
1320 netdev->features & NETIF_F_HW_VLAN_STAG_TX) in wx_tso()
1321 type_tucmd |= WX_SET_FLAG(first->tx_flags, in wx_tso()
1334 struct net_device *netdev = tx_ring->netdev; in wx_tx_csum()
1336 struct sk_buff *skb = first->skb; in wx_tx_csum()
1339 if (skb->ip_summed != CHECKSUM_PARTIAL) { in wx_tx_csum()
1340 if (!(first->tx_flags & WX_TX_FLAGS_HW_VLAN) && in wx_tx_csum()
1341 !(first->tx_flags & WX_TX_FLAGS_CC)) in wx_tx_csum()
1357 if (skb->encapsulation) { in wx_tx_csum()
1362 switch (first->protocol) { in wx_tx_csum()
1364 tun_prot = ip_hdr(skb)->protocol; in wx_tx_csum()
1367 tun_prot = ipv6_hdr(skb)->nexthdr; in wx_tx_csum()
1378 (((skb_inner_mac_header(skb) - in wx_tx_csum()
1386 (((skb_inner_mac_header(skb) - in wx_tx_csum()
1391 tunhdr_eiplen_tunlen = (((char *)inner_ip_hdr(skb) - in wx_tx_csum()
1406 switch (network_hdr.ipv4->version) { in wx_tx_csum()
1408 vlan_macip_lens |= (transport_hdr.raw - network_hdr.raw) >> 1; in wx_tx_csum()
1409 l4_prot = network_hdr.ipv4->protocol; in wx_tx_csum()
1412 vlan_macip_lens |= (transport_hdr.raw - network_hdr.raw) >> 1; in wx_tx_csum()
1413 l4_prot = network_hdr.ipv6->nexthdr; in wx_tx_csum()
1421 mss_l4len_idx = (transport_hdr.tcphdr->doff * 4) << in wx_tx_csum()
1437 first->tx_flags |= WX_TX_FLAGS_CSUM; in wx_tx_csum()
1439 first->tx_flags |= WX_TX_FLAGS_CC; in wx_tx_csum()
1441 vlan_macip_lens |= first->tx_flags & WX_TX_FLAGS_VLAN_MASK; in wx_tx_csum()
1444 if (skb->vlan_proto == htons(ETH_P_8021AD) && in wx_tx_csum()
1445 netdev->features & NETIF_F_HW_VLAN_STAG_TX) in wx_tx_csum()
1446 type_tucmd |= WX_SET_FLAG(first->tx_flags, in wx_tx_csum()
1469 for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) in wx_xmit_frame_ring()
1470 count += TXD_USE_COUNT(skb_frag_size(&skb_shinfo(skb)-> in wx_xmit_frame_ring()
1474 tx_ring->tx_stats.tx_busy++; in wx_xmit_frame_ring()
1479 first = &tx_ring->tx_buffer_info[tx_ring->next_to_use]; in wx_xmit_frame_ring()
1480 first->skb = skb; in wx_xmit_frame_ring()
1481 first->bytecount = skb->len; in wx_xmit_frame_ring()
1482 first->gso_segs = 1; in wx_xmit_frame_ring()
1491 first->tx_flags = tx_flags; in wx_xmit_frame_ring()
1492 first->protocol = vlan_get_protocol(skb); in wx_xmit_frame_ring()
1505 dev_kfree_skb_any(first->skb); in wx_xmit_frame_ring()
1506 first->skb = NULL; in wx_xmit_frame_ring()
1514 unsigned int r_idx = skb->queue_mapping; in wx_xmit_frame()
1529 if (r_idx >= wx->num_tx_queues) in wx_xmit_frame()
1530 r_idx = r_idx % wx->num_tx_queues; in wx_xmit_frame()
1531 tx_ring = wx->tx_ring[r_idx]; in wx_xmit_frame()
1542 for (q_idx = 0; q_idx < wx->num_q_vectors; q_idx++) { in wx_napi_enable_all()
1543 q_vector = wx->q_vector[q_idx]; in wx_napi_enable_all()
1544 napi_enable(&q_vector->napi); in wx_napi_enable_all()
1554 for (q_idx = 0; q_idx < wx->num_q_vectors; q_idx++) { in wx_napi_disable_all()
1555 q_vector = wx->q_vector[q_idx]; in wx_napi_disable_all()
1556 napi_disable(&q_vector->napi); in wx_napi_disable_all()
1574 f = &wx->ring_feature[RING_F_RSS]; in wx_set_rss_queues()
1575 f->indices = f->limit; in wx_set_rss_queues()
1577 wx->num_rx_queues = f->limit; in wx_set_rss_queues()
1578 wx->num_tx_queues = f->limit; in wx_set_rss_queues()
1584 wx->num_rx_queues = 1; in wx_set_num_queues()
1585 wx->num_tx_queues = 1; in wx_set_num_queues()
1586 wx->queues_per_pool = 1; in wx_set_num_queues()
1592 * wx_acquire_msix_vectors - acquire MSI-X vectors
1595 * Attempts to acquire a suitable range of MSI-X vector interrupts. Will
1596 * return a negative error code if unable to acquire MSI-X vectors for any
1605 nvecs = max(wx->num_rx_queues, wx->num_tx_queues); in wx_acquire_msix_vectors()
1607 nvecs = min_t(int, nvecs, wx->mac.max_msix_vectors); in wx_acquire_msix_vectors()
1609 wx->msix_q_entries = kcalloc(nvecs, sizeof(struct msix_entry), in wx_acquire_msix_vectors()
1611 if (!wx->msix_q_entries) in wx_acquire_msix_vectors()
1612 return -ENOMEM; in wx_acquire_msix_vectors()
1614 /* One for non-queue interrupts */ in wx_acquire_msix_vectors()
1617 if (!wx->msix_in_use) { in wx_acquire_msix_vectors()
1618 wx->msix_entry = kcalloc(1, sizeof(struct msix_entry), in wx_acquire_msix_vectors()
1620 if (!wx->msix_entry) { in wx_acquire_msix_vectors()
1621 kfree(wx->msix_q_entries); in wx_acquire_msix_vectors()
1622 wx->msix_q_entries = NULL; in wx_acquire_msix_vectors()
1623 return -ENOMEM; in wx_acquire_msix_vectors()
1627 nvecs = pci_alloc_irq_vectors_affinity(wx->pdev, nvecs, in wx_acquire_msix_vectors()
1632 wx_err(wx, "Failed to allocate MSI-X interrupts. Err: %d\n", nvecs); in wx_acquire_msix_vectors()
1633 kfree(wx->msix_q_entries); in wx_acquire_msix_vectors()
1634 wx->msix_q_entries = NULL; in wx_acquire_msix_vectors()
1635 kfree(wx->msix_entry); in wx_acquire_msix_vectors()
1636 wx->msix_entry = NULL; in wx_acquire_msix_vectors()
1640 wx->msix_entry->entry = 0; in wx_acquire_msix_vectors()
1641 wx->msix_entry->vector = pci_irq_vector(wx->pdev, 0); in wx_acquire_msix_vectors()
1642 nvecs -= 1; in wx_acquire_msix_vectors()
1644 wx->msix_q_entries[i].entry = i; in wx_acquire_msix_vectors()
1645 wx->msix_q_entries[i].vector = pci_irq_vector(wx->pdev, i + 1); in wx_acquire_msix_vectors()
1648 wx->num_q_vectors = nvecs; in wx_acquire_msix_vectors()
1654 * wx_set_interrupt_capability - set MSI-X or MSI if supported
1662 struct pci_dev *pdev = wx->pdev; in wx_set_interrupt_capability()
1665 /* We will try to get MSI-X interrupts first */ in wx_set_interrupt_capability()
1667 if (ret == 0 || (ret == -ENOMEM)) in wx_set_interrupt_capability()
1670 /* Disable RSS */ in wx_set_interrupt_capability()
1671 dev_warn(&wx->pdev->dev, "Disabling RSS support\n"); in wx_set_interrupt_capability()
1672 wx->ring_feature[RING_F_RSS].limit = 1; in wx_set_interrupt_capability()
1681 if (pdev->msi_enabled) in wx_set_interrupt_capability()
1690 pdev->irq = pci_irq_vector(pdev, 0); in wx_set_interrupt_capability()
1696 * wx_cache_ring_rss - Descriptor ring to register mapping for RSS
1699 * Cache the descriptor ring offsets for RSS, ATR, FCoE, and SR-IOV.
1706 for (i = 0; i < wx->num_rx_queues; i++) in wx_cache_ring_rss()
1707 wx->rx_ring[i]->reg_idx = i; in wx_cache_ring_rss()
1709 for (i = 0; i < wx->num_tx_queues; i++) in wx_cache_ring_rss()
1710 wx->tx_ring[i]->reg_idx = i; in wx_cache_ring_rss()
1715 ring->next = head->ring; in wx_add_ring()
1716 head->ring = ring; in wx_add_ring()
1717 head->count++; in wx_add_ring()
1721 * wx_alloc_q_vector - Allocate memory for a single interrupt vector
1730 * We allocate one q_vector. If allocation fails we return -ENOMEM.
1747 return -ENOMEM; in wx_alloc_q_vector()
1750 netif_napi_add(wx->netdev, &q_vector->napi, in wx_alloc_q_vector()
1754 wx->q_vector[v_idx] = q_vector; in wx_alloc_q_vector()
1755 q_vector->wx = wx; in wx_alloc_q_vector()
1756 q_vector->v_idx = v_idx; in wx_alloc_q_vector()
1758 q_vector->numa_node = cpu_to_node(v_idx); in wx_alloc_q_vector()
1761 ring = q_vector->ring; in wx_alloc_q_vector()
1763 if (wx->mac.type == wx_mac_sp) in wx_alloc_q_vector()
1770 q_vector->itr = wx->tx_itr_setting ? in wx_alloc_q_vector()
1771 default_itr : wx->tx_itr_setting; in wx_alloc_q_vector()
1774 q_vector->itr = wx->rx_itr_setting ? in wx_alloc_q_vector()
1775 default_itr : wx->rx_itr_setting; in wx_alloc_q_vector()
1779 ring->dev = &wx->pdev->dev; in wx_alloc_q_vector()
1780 ring->netdev = wx->netdev; in wx_alloc_q_vector()
1783 ring->q_vector = q_vector; in wx_alloc_q_vector()
1786 wx_add_ring(ring, &q_vector->tx); in wx_alloc_q_vector()
1789 ring->count = wx->tx_ring_count; in wx_alloc_q_vector()
1791 ring->queue_index = txr_idx; in wx_alloc_q_vector()
1794 wx->tx_ring[txr_idx] = ring; in wx_alloc_q_vector()
1797 txr_count--; in wx_alloc_q_vector()
1806 ring->dev = &wx->pdev->dev; in wx_alloc_q_vector()
1807 ring->netdev = wx->netdev; in wx_alloc_q_vector()
1810 ring->q_vector = q_vector; in wx_alloc_q_vector()
1813 wx_add_ring(ring, &q_vector->rx); in wx_alloc_q_vector()
1816 ring->count = wx->rx_ring_count; in wx_alloc_q_vector()
1817 ring->queue_index = rxr_idx; in wx_alloc_q_vector()
1820 wx->rx_ring[rxr_idx] = ring; in wx_alloc_q_vector()
1823 rxr_count--; in wx_alloc_q_vector()
1834 * wx_free_q_vector - Free memory allocated for specific interrupt vector
1844 struct wx_q_vector *q_vector = wx->q_vector[v_idx]; in wx_free_q_vector()
1847 wx_for_each_ring(ring, q_vector->tx) in wx_free_q_vector()
1848 wx->tx_ring[ring->queue_index] = NULL; in wx_free_q_vector()
1850 wx_for_each_ring(ring, q_vector->rx) in wx_free_q_vector()
1851 wx->rx_ring[ring->queue_index] = NULL; in wx_free_q_vector()
1853 wx->q_vector[v_idx] = NULL; in wx_free_q_vector()
1854 netif_napi_del(&q_vector->napi); in wx_free_q_vector()
1859 * wx_alloc_q_vectors - Allocate memory for interrupt vectors
1863 * return -ENOMEM.
1868 unsigned int rxr_remaining = wx->num_rx_queues; in wx_alloc_q_vectors()
1869 unsigned int txr_remaining = wx->num_tx_queues; in wx_alloc_q_vectors()
1870 unsigned int q_vectors = wx->num_q_vectors; in wx_alloc_q_vectors()
1875 rqpv = DIV_ROUND_UP(rxr_remaining, q_vectors - v_idx); in wx_alloc_q_vectors()
1876 tqpv = DIV_ROUND_UP(txr_remaining, q_vectors - v_idx); in wx_alloc_q_vectors()
1885 rxr_remaining -= rqpv; in wx_alloc_q_vectors()
1886 txr_remaining -= tqpv; in wx_alloc_q_vectors()
1894 wx->num_tx_queues = 0; in wx_alloc_q_vectors()
1895 wx->num_rx_queues = 0; in wx_alloc_q_vectors()
1896 wx->num_q_vectors = 0; in wx_alloc_q_vectors()
1898 while (v_idx--) in wx_alloc_q_vectors()
1901 return -ENOMEM; in wx_alloc_q_vectors()
1905 * wx_free_q_vectors - Free memory allocated for interrupt vectors
1914 int v_idx = wx->num_q_vectors; in wx_free_q_vectors()
1916 wx->num_tx_queues = 0; in wx_free_q_vectors()
1917 wx->num_rx_queues = 0; in wx_free_q_vectors()
1918 wx->num_q_vectors = 0; in wx_free_q_vectors()
1920 while (v_idx--) in wx_free_q_vectors()
1926 struct pci_dev *pdev = wx->pdev; in wx_reset_interrupt_capability()
1928 if (!pdev->msi_enabled && !pdev->msix_enabled) in wx_reset_interrupt_capability()
1931 if (pdev->msix_enabled) { in wx_reset_interrupt_capability()
1932 kfree(wx->msix_q_entries); in wx_reset_interrupt_capability()
1933 wx->msix_q_entries = NULL; in wx_reset_interrupt_capability()
1934 if (!wx->msix_in_use) { in wx_reset_interrupt_capability()
1935 kfree(wx->msix_entry); in wx_reset_interrupt_capability()
1936 wx->msix_entry = NULL; in wx_reset_interrupt_capability()
1939 pci_free_irq_vectors(wx->pdev); in wx_reset_interrupt_capability()
1944 * wx_clear_interrupt_scheme - Clear the current interrupt scheme settings
1948 * to pre-load conditions
1990 if (q_vector->rx.ring || q_vector->tx.ring) in wx_msix_clean_rings()
1991 napi_schedule_irqoff(&q_vector->napi); in wx_msix_clean_rings()
1999 struct pci_dev *pdev = wx->pdev; in wx_free_irq()
2002 if (!(pdev->msix_enabled)) { in wx_free_irq()
2003 free_irq(pdev->irq, wx); in wx_free_irq()
2007 for (vector = 0; vector < wx->num_q_vectors; vector++) { in wx_free_irq()
2008 struct wx_q_vector *q_vector = wx->q_vector[vector]; in wx_free_irq()
2009 struct msix_entry *entry = &wx->msix_q_entries[vector]; in wx_free_irq()
2012 if (!q_vector->rx.ring && !q_vector->tx.ring) in wx_free_irq()
2015 free_irq(entry->vector, q_vector); in wx_free_irq()
2018 if (wx->mac.type == wx_mac_em) in wx_free_irq()
2019 free_irq(wx->msix_entry->vector, wx); in wx_free_irq()
2024 * wx_setup_isb_resources - allocate interrupt status resources
2031 struct pci_dev *pdev = wx->pdev; in wx_setup_isb_resources()
2033 wx->isb_mem = dma_alloc_coherent(&pdev->dev, in wx_setup_isb_resources()
2035 &wx->isb_dma, in wx_setup_isb_resources()
2037 if (!wx->isb_mem) { in wx_setup_isb_resources()
2039 return -ENOMEM; in wx_setup_isb_resources()
2047 * wx_free_isb_resources - allocate all queues Rx resources
2054 struct pci_dev *pdev = wx->pdev; in wx_free_isb_resources()
2056 dma_free_coherent(&pdev->dev, sizeof(u32) * 4, in wx_free_isb_resources()
2057 wx->isb_mem, wx->isb_dma); in wx_free_isb_resources()
2058 wx->isb_mem = NULL; in wx_free_isb_resources()
2066 cur_tag = wx->isb_mem[WX_ISB_HEADER]; in wx_misc_isb()
2067 wx->isb_tag[idx] = cur_tag; in wx_misc_isb()
2069 return (__force u32)cpu_to_le32(wx->isb_mem[idx]); in wx_misc_isb()
2074 * wx_set_ivar - set the IVAR registers, mapping interrupt causes to vectors
2076 * @direction: 0 for Rx, 1 for Tx, -1 for other causes
2086 if (direction == -1) { in wx_set_ivar()
2107 * wx_write_eitr - write EITR register in hardware specific way
2116 struct wx *wx = q_vector->wx; in wx_write_eitr()
2117 int v_idx = q_vector->v_idx; in wx_write_eitr()
2120 if (wx->mac.type == wx_mac_sp) in wx_write_eitr()
2121 itr_reg = q_vector->itr & WX_SP_MAX_EITR; in wx_write_eitr()
2123 itr_reg = q_vector->itr & WX_EM_MAX_EITR; in wx_write_eitr()
2131 * wx_configure_vectors - Configure vectors for hardware
2134 * wx_configure_vectors sets up the hardware to properly generate MSI-X/MSI/LEGACY
2139 struct pci_dev *pdev = wx->pdev; in wx_configure_vectors()
2143 if (pdev->msix_enabled) { in wx_configure_vectors()
2146 /* use EIAM to auto-mask when MSI-X interrupt is asserted in wx_configure_vectors()
2151 /* legacy interrupts, use EIAM to auto-mask when reading EICR, in wx_configure_vectors()
2160 for (v_idx = 0; v_idx < wx->num_q_vectors; v_idx++) { in wx_configure_vectors()
2161 struct wx_q_vector *q_vector = wx->q_vector[v_idx]; in wx_configure_vectors()
2164 wx_for_each_ring(ring, q_vector->rx) in wx_configure_vectors()
2165 wx_set_ivar(wx, 0, ring->reg_idx, v_idx); in wx_configure_vectors()
2167 wx_for_each_ring(ring, q_vector->tx) in wx_configure_vectors()
2168 wx_set_ivar(wx, 1, ring->reg_idx, v_idx); in wx_configure_vectors()
2173 wx_set_ivar(wx, -1, 0, 0); in wx_configure_vectors()
2174 if (pdev->msix_enabled) in wx_configure_vectors()
2180 * wx_clean_rx_ring - Free Rx Buffers per Queue
2186 u16 i = rx_ring->next_to_clean; in wx_clean_rx_ring()
2188 rx_buffer = &rx_ring->rx_buffer_info[i]; in wx_clean_rx_ring()
2191 while (i != rx_ring->next_to_alloc) { in wx_clean_rx_ring()
2192 if (rx_buffer->skb) { in wx_clean_rx_ring()
2193 struct sk_buff *skb = rx_buffer->skb; in wx_clean_rx_ring()
2195 if (WX_CB(skb)->page_released) in wx_clean_rx_ring()
2196 page_pool_put_full_page(rx_ring->page_pool, rx_buffer->page, false); in wx_clean_rx_ring()
2204 dma_sync_single_range_for_cpu(rx_ring->dev, in wx_clean_rx_ring()
2205 rx_buffer->dma, in wx_clean_rx_ring()
2206 rx_buffer->page_offset, in wx_clean_rx_ring()
2211 page_pool_put_full_page(rx_ring->page_pool, rx_buffer->page, false); in wx_clean_rx_ring()
2215 if (i == rx_ring->count) { in wx_clean_rx_ring()
2217 rx_buffer = rx_ring->rx_buffer_info; in wx_clean_rx_ring()
2221 rx_ring->next_to_alloc = 0; in wx_clean_rx_ring()
2222 rx_ring->next_to_clean = 0; in wx_clean_rx_ring()
2223 rx_ring->next_to_use = 0; in wx_clean_rx_ring()
2227 * wx_clean_all_rx_rings - Free Rx Buffers for all queues
2234 for (i = 0; i < wx->num_rx_queues; i++) in wx_clean_all_rx_rings()
2235 wx_clean_rx_ring(wx->rx_ring[i]); in wx_clean_all_rx_rings()
2240 * wx_free_rx_resources - Free Rx Resources
2248 kvfree(rx_ring->rx_buffer_info); in wx_free_rx_resources()
2249 rx_ring->rx_buffer_info = NULL; in wx_free_rx_resources()
2252 if (!rx_ring->desc) in wx_free_rx_resources()
2255 dma_free_coherent(rx_ring->dev, rx_ring->size, in wx_free_rx_resources()
2256 rx_ring->desc, rx_ring->dma); in wx_free_rx_resources()
2258 rx_ring->desc = NULL; in wx_free_rx_resources()
2260 if (rx_ring->page_pool) { in wx_free_rx_resources()
2261 page_pool_destroy(rx_ring->page_pool); in wx_free_rx_resources()
2262 rx_ring->page_pool = NULL; in wx_free_rx_resources()
2267 * wx_free_all_rx_resources - Free Rx Resources for All Queues
2276 for (i = 0; i < wx->num_rx_queues; i++) in wx_free_all_rx_resources()
2277 wx_free_rx_resources(wx->rx_ring[i]); in wx_free_all_rx_resources()
2281 * wx_clean_tx_ring - Free Tx Buffers
2287 u16 i = tx_ring->next_to_clean; in wx_clean_tx_ring()
2289 tx_buffer = &tx_ring->tx_buffer_info[i]; in wx_clean_tx_ring()
2291 while (i != tx_ring->next_to_use) { in wx_clean_tx_ring()
2295 dev_kfree_skb_any(tx_buffer->skb); in wx_clean_tx_ring()
2298 dma_unmap_single(tx_ring->dev, in wx_clean_tx_ring()
2304 eop_desc = tx_buffer->next_to_watch; in wx_clean_tx_ring()
2312 if (unlikely(i == tx_ring->count)) { in wx_clean_tx_ring()
2314 tx_buffer = tx_ring->tx_buffer_info; in wx_clean_tx_ring()
2320 dma_unmap_page(tx_ring->dev, in wx_clean_tx_ring()
2329 if (unlikely(i == tx_ring->count)) { in wx_clean_tx_ring()
2331 tx_buffer = tx_ring->tx_buffer_info; in wx_clean_tx_ring()
2338 tx_ring->next_to_use = 0; in wx_clean_tx_ring()
2339 tx_ring->next_to_clean = 0; in wx_clean_tx_ring()
2343 * wx_clean_all_tx_rings - Free Tx Buffers for all queues
2350 for (i = 0; i < wx->num_tx_queues; i++) in wx_clean_all_tx_rings()
2351 wx_clean_tx_ring(wx->tx_ring[i]); in wx_clean_all_tx_rings()
2356 * wx_free_tx_resources - Free Tx Resources per Queue
2364 kvfree(tx_ring->tx_buffer_info); in wx_free_tx_resources()
2365 tx_ring->tx_buffer_info = NULL; in wx_free_tx_resources()
2368 if (!tx_ring->desc) in wx_free_tx_resources()
2371 dma_free_coherent(tx_ring->dev, tx_ring->size, in wx_free_tx_resources()
2372 tx_ring->desc, tx_ring->dma); in wx_free_tx_resources()
2373 tx_ring->desc = NULL; in wx_free_tx_resources()
2377 * wx_free_all_tx_resources - Free Tx Resources for All Queues
2386 for (i = 0; i < wx->num_tx_queues; i++) in wx_free_all_tx_resources()
2387 wx_free_tx_resources(wx->tx_ring[i]); in wx_free_all_tx_resources()
2405 .pool_size = rx_ring->size, in wx_alloc_page_pool()
2406 .nid = dev_to_node(rx_ring->dev), in wx_alloc_page_pool()
2407 .dev = rx_ring->dev, in wx_alloc_page_pool()
2413 rx_ring->page_pool = page_pool_create(&pp_params); in wx_alloc_page_pool()
2414 if (IS_ERR(rx_ring->page_pool)) { in wx_alloc_page_pool()
2415 ret = PTR_ERR(rx_ring->page_pool); in wx_alloc_page_pool()
2416 rx_ring->page_pool = NULL; in wx_alloc_page_pool()
2423 * wx_setup_rx_resources - allocate Rx resources (Descriptors)
2430 struct device *dev = rx_ring->dev; in wx_setup_rx_resources()
2435 size = sizeof(struct wx_rx_buffer) * rx_ring->count; in wx_setup_rx_resources()
2437 if (rx_ring->q_vector) in wx_setup_rx_resources()
2438 numa_node = rx_ring->q_vector->numa_node; in wx_setup_rx_resources()
2440 rx_ring->rx_buffer_info = kvmalloc_node(size, GFP_KERNEL, numa_node); in wx_setup_rx_resources()
2441 if (!rx_ring->rx_buffer_info) in wx_setup_rx_resources()
2442 rx_ring->rx_buffer_info = kvmalloc(size, GFP_KERNEL); in wx_setup_rx_resources()
2443 if (!rx_ring->rx_buffer_info) in wx_setup_rx_resources()
2447 rx_ring->size = rx_ring->count * sizeof(union wx_rx_desc); in wx_setup_rx_resources()
2448 rx_ring->size = ALIGN(rx_ring->size, 4096); in wx_setup_rx_resources()
2451 rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, in wx_setup_rx_resources()
2452 &rx_ring->dma, GFP_KERNEL); in wx_setup_rx_resources()
2453 if (!rx_ring->desc) { in wx_setup_rx_resources()
2455 rx_ring->desc = dma_alloc_coherent(dev, rx_ring->size, in wx_setup_rx_resources()
2456 &rx_ring->dma, GFP_KERNEL); in wx_setup_rx_resources()
2459 if (!rx_ring->desc) in wx_setup_rx_resources()
2462 rx_ring->next_to_clean = 0; in wx_setup_rx_resources()
2463 rx_ring->next_to_use = 0; in wx_setup_rx_resources()
2467 dev_err(rx_ring->dev, "Page pool creation failed: %d\n", ret); in wx_setup_rx_resources()
2474 dma_free_coherent(dev, rx_ring->size, rx_ring->desc, rx_ring->dma); in wx_setup_rx_resources()
2476 kvfree(rx_ring->rx_buffer_info); in wx_setup_rx_resources()
2477 rx_ring->rx_buffer_info = NULL; in wx_setup_rx_resources()
2479 return -ENOMEM; in wx_setup_rx_resources()
2483 * wx_setup_all_rx_resources - allocate all queues Rx resources
2496 for (i = 0; i < wx->num_rx_queues; i++) { in wx_setup_all_rx_resources()
2497 err = wx_setup_rx_resources(wx->rx_ring[i]); in wx_setup_all_rx_resources()
2508 while (i--) in wx_setup_all_rx_resources()
2509 wx_free_rx_resources(wx->rx_ring[i]); in wx_setup_all_rx_resources()
2514 * wx_setup_tx_resources - allocate Tx resources (Descriptors)
2521 struct device *dev = tx_ring->dev; in wx_setup_tx_resources()
2526 size = sizeof(struct wx_tx_buffer) * tx_ring->count; in wx_setup_tx_resources()
2528 if (tx_ring->q_vector) in wx_setup_tx_resources()
2529 numa_node = tx_ring->q_vector->numa_node; in wx_setup_tx_resources()
2531 tx_ring->tx_buffer_info = kvmalloc_node(size, GFP_KERNEL, numa_node); in wx_setup_tx_resources()
2532 if (!tx_ring->tx_buffer_info) in wx_setup_tx_resources()
2533 tx_ring->tx_buffer_info = kvmalloc(size, GFP_KERNEL); in wx_setup_tx_resources()
2534 if (!tx_ring->tx_buffer_info) in wx_setup_tx_resources()
2538 tx_ring->size = tx_ring->count * sizeof(union wx_tx_desc); in wx_setup_tx_resources()
2539 tx_ring->size = ALIGN(tx_ring->size, 4096); in wx_setup_tx_resources()
2542 tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, in wx_setup_tx_resources()
2543 &tx_ring->dma, GFP_KERNEL); in wx_setup_tx_resources()
2544 if (!tx_ring->desc) { in wx_setup_tx_resources()
2546 tx_ring->desc = dma_alloc_coherent(dev, tx_ring->size, in wx_setup_tx_resources()
2547 &tx_ring->dma, GFP_KERNEL); in wx_setup_tx_resources()
2550 if (!tx_ring->desc) in wx_setup_tx_resources()
2553 tx_ring->next_to_use = 0; in wx_setup_tx_resources()
2554 tx_ring->next_to_clean = 0; in wx_setup_tx_resources()
2559 kvfree(tx_ring->tx_buffer_info); in wx_setup_tx_resources()
2560 tx_ring->tx_buffer_info = NULL; in wx_setup_tx_resources()
2562 return -ENOMEM; in wx_setup_tx_resources()
2566 * wx_setup_all_tx_resources - allocate all queues Tx resources
2579 for (i = 0; i < wx->num_tx_queues; i++) { in wx_setup_all_tx_resources()
2580 err = wx_setup_tx_resources(wx->tx_ring[i]); in wx_setup_all_tx_resources()
2591 while (i--) in wx_setup_all_tx_resources()
2592 wx_free_tx_resources(wx->tx_ring[i]); in wx_setup_all_tx_resources()
2626 * wx_get_stats64 - Get System Network Statistics
2640 for (i = 0; i < wx->num_rx_queues; i++) { in wx_get_stats64()
2641 struct wx_ring *ring = READ_ONCE(wx->rx_ring[i]); in wx_get_stats64()
2647 start = u64_stats_fetch_begin(&ring->syncp); in wx_get_stats64()
2648 packets = ring->stats.packets; in wx_get_stats64()
2649 bytes = ring->stats.bytes; in wx_get_stats64()
2650 } while (u64_stats_fetch_retry(&ring->syncp, start)); in wx_get_stats64()
2651 stats->rx_packets += packets; in wx_get_stats64()
2652 stats->rx_bytes += bytes; in wx_get_stats64()
2656 for (i = 0; i < wx->num_tx_queues; i++) { in wx_get_stats64()
2657 struct wx_ring *ring = READ_ONCE(wx->tx_ring[i]); in wx_get_stats64()
2663 start = u64_stats_fetch_begin(&ring->syncp); in wx_get_stats64()
2664 packets = ring->stats.packets; in wx_get_stats64()
2665 bytes = ring->stats.bytes; in wx_get_stats64()
2666 } while (u64_stats_fetch_retry(&ring->syncp, in wx_get_stats64()
2668 stats->tx_packets += packets; in wx_get_stats64()
2669 stats->tx_bytes += bytes; in wx_get_stats64()
2675 hwstats = &wx->stats; in wx_get_stats64()
2676 stats->rx_errors = hwstats->crcerrs + hwstats->rlec; in wx_get_stats64()
2677 stats->multicast = hwstats->qmprc; in wx_get_stats64()
2678 stats->rx_length_errors = hwstats->rlec; in wx_get_stats64()
2679 stats->rx_crc_errors = hwstats->crcerrs; in wx_get_stats64()
2685 netdev_features_t changed = netdev->features ^ features; in wx_set_features()
2691 wx->rss_enabled = true; in wx_set_features()
2694 wx->rss_enabled = false; in wx_set_features()
2716 if (new_tx_count != wx->tx_ring_count) { in wx_set_ring()
2717 for (i = 0; i < wx->num_tx_queues; i++) { in wx_set_ring()
2718 memcpy(&temp_ring[i], wx->tx_ring[i], in wx_set_ring()
2726 i--; in wx_set_ring()
2733 for (i = 0; i < wx->num_tx_queues; i++) { in wx_set_ring()
2734 wx_free_tx_resources(wx->tx_ring[i]); in wx_set_ring()
2736 memcpy(wx->tx_ring[i], &temp_ring[i], in wx_set_ring()
2740 wx->tx_ring_count = new_tx_count; in wx_set_ring()
2744 if (new_rx_count != wx->rx_ring_count) { in wx_set_ring()
2745 for (i = 0; i < wx->num_rx_queues; i++) { in wx_set_ring()
2746 memcpy(&temp_ring[i], wx->rx_ring[i], in wx_set_ring()
2754 i--; in wx_set_ring()
2761 for (i = 0; i < wx->num_rx_queues; i++) { in wx_set_ring()
2762 wx_free_rx_resources(wx->rx_ring[i]); in wx_set_ring()
2763 memcpy(wx->rx_ring[i], &temp_ring[i], in wx_set_ring()
2767 wx->rx_ring_count = new_rx_count; in wx_set_ring()