diff options
Diffstat (limited to 'drivers/net/ethernet/qlogic/qede/qede_main.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede_main.c | 2507 |
1 files changed, 129 insertions, 2378 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index aecdd1c5c0ea..3a78c3f25157 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -1,11 +1,34 @@ /* QLogic qede NIC Driver -* Copyright (c) 2015 QLogic Corporation -* -* This software is available under the terms of the GNU General Public License -* (GPL) Version 2, available from the file COPYING in the main directory of -* this source tree. -*/ - + * Copyright (c) 2015-2017 QLogic Corporation + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and /or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ #include <linux/module.h> #include <linux/pci.h> #include <linux/version.h> @@ -36,8 +59,10 @@ #include <linux/random.h> #include <net/ip6_checksum.h> #include <linux/bitops.h> +#include <linux/vmalloc.h> #include <linux/qed/qede_roce.h> #include "qede.h" +#include "qede_ptp.h" static char version[] = "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n"; @@ -154,8 +179,12 @@ static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param) { struct qede_dev *edev = netdev_priv(pci_get_drvdata(pdev)); struct qed_dev_info *qed_info = &edev->dev_info.common; + struct qed_update_vport_params *vport_params; int rc; + vport_params = vzalloc(sizeof(*vport_params)); + if (!vport_params) + return -ENOMEM; DP_VERBOSE(edev, QED_MSG_IOV, "Requested %d VFs\n", num_vfs_param); rc = edev->ops->iov->configure(edev->cdev, num_vfs_param); @@ -163,15 +192,13 @@ static int qede_sriov_configure(struct pci_dev *pdev, int num_vfs_param) /* Enable/Disable Tx switching for PF */ if ((rc == num_vfs_param) && netif_running(edev->ndev) && qed_info->mf_mode != QED_MF_NPAR && qed_info->tx_switching) { - struct qed_update_vport_params params; - - memset(¶ms, 0, sizeof(params)); - params.vport_id = 0; - params.update_tx_switching_flg = 1; - params.tx_switching_flg = num_vfs_param ? 1 : 0; - edev->ops->vport_update(edev->cdev, ¶ms); + vport_params->vport_id = 0; + vport_params->update_tx_switching_flg = 1; + vport_params->tx_switching_flg = num_vfs_param ? 1 : 0; + edev->ops->vport_update(edev->cdev, vport_params); } + vfree(vport_params); return rc; } #endif @@ -187,18 +214,6 @@ static struct pci_driver qede_pci_driver = { #endif }; -static void qede_force_mac(void *dev, u8 *mac, bool forced) -{ - struct qede_dev *edev = dev; - - /* MAC hints take effect only if we haven't set one already */ - if (is_valid_ether_addr(edev->ndev->dev_addr) && !forced) - return; - - ether_addr_copy(edev->ndev->dev_addr, mac); - ether_addr_copy(edev->primary_mac, mac); -} - static struct qed_eth_cb_ops qede_ll_ops = { { .link_update = qede_link_update, @@ -294,1643 +309,8 @@ static void __exit qede_cleanup(void) module_init(qede_init); module_exit(qede_cleanup); -/* ------------------------------------------------------------------------- - * START OF FAST-PATH - * ------------------------------------------------------------------------- - */ - -/* Unmap the data and free skb */ -static int qede_free_tx_pkt(struct qede_dev *edev, - struct qede_tx_queue *txq, int *len) -{ - u16 idx = txq->sw_tx_cons & NUM_TX_BDS_MAX; - struct sk_buff *skb = txq->sw_tx_ring.skbs[idx].skb; - struct eth_tx_1st_bd *first_bd; - struct eth_tx_bd *tx_data_bd; - int bds_consumed = 0; - int nbds; - bool data_split = txq->sw_tx_ring.skbs[idx].flags & QEDE_TSO_SPLIT_BD; - int i, split_bd_len = 0; - - if (unlikely(!skb)) { - DP_ERR(edev, - "skb is null for txq idx=%d txq->sw_tx_cons=%d txq->sw_tx_prod=%d\n", - idx, txq->sw_tx_cons, txq->sw_tx_prod); - return -1; - } - - *len = skb->len; - - first_bd = (struct eth_tx_1st_bd *)qed_chain_consume(&txq->tx_pbl); - - bds_consumed++; - - nbds = first_bd->data.nbds; - - if (data_split) { - struct eth_tx_bd *split = (struct eth_tx_bd *) - qed_chain_consume(&txq->tx_pbl); - split_bd_len = BD_UNMAP_LEN(split); - bds_consumed++; - } - dma_unmap_single(&edev->pdev->dev, BD_UNMAP_ADDR(first_bd), - BD_UNMAP_LEN(first_bd) + split_bd_len, DMA_TO_DEVICE); - - /* Unmap the data of the skb frags */ - for (i = 0; i < skb_shinfo(skb)->nr_frags; i++, bds_consumed++) { - tx_data_bd = (struct eth_tx_bd *) - qed_chain_consume(&txq->tx_pbl); - dma_unmap_page(&edev->pdev->dev, BD_UNMAP_ADDR(tx_data_bd), - BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); - } - - while (bds_consumed++ < nbds) - qed_chain_consume(&txq->tx_pbl); - - /* Free skb */ - dev_kfree_skb_any(skb); - txq->sw_tx_ring.skbs[idx].skb = NULL; - txq->sw_tx_ring.skbs[idx].flags = 0; - - return 0; -} - -/* Unmap the data and free skb when mapping failed during start_xmit */ -static void qede_free_failed_tx_pkt(struct qede_tx_queue *txq, - struct eth_tx_1st_bd *first_bd, - int nbd, bool data_split) -{ - u16 idx = txq->sw_tx_prod & NUM_TX_BDS_MAX; - struct sk_buff *skb = txq->sw_tx_ring.skbs[idx].skb; - struct eth_tx_bd *tx_data_bd; - int i, split_bd_len = 0; - - /* Return prod to its position before this skb was handled */ - qed_chain_set_prod(&txq->tx_pbl, - le16_to_cpu(txq->tx_db.data.bd_prod), first_bd); - - first_bd = (struct eth_tx_1st_bd *)qed_chain_produce(&txq->tx_pbl); - - if (data_split) { - struct eth_tx_bd *split = (struct eth_tx_bd *) - qed_chain_produce(&txq->tx_pbl); - split_bd_len = BD_UNMAP_LEN(split); - nbd--; - } - - dma_unmap_single(txq->dev, BD_UNMAP_ADDR(first_bd), - BD_UNMAP_LEN(first_bd) + split_bd_len, DMA_TO_DEVICE); - - /* Unmap the data of the skb frags */ - for (i = 0; i < nbd; i++) { - tx_data_bd = (struct eth_tx_bd *) - qed_chain_produce(&txq->tx_pbl); - if (tx_data_bd->nbytes) - dma_unmap_page(txq->dev, - BD_UNMAP_ADDR(tx_data_bd), - BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); - } - - /* Return again prod to its position before this skb was handled */ - qed_chain_set_prod(&txq->tx_pbl, - le16_to_cpu(txq->tx_db.data.bd_prod), first_bd); - - /* Free skb */ - dev_kfree_skb_any(skb); - txq->sw_tx_ring.skbs[idx].skb = NULL; - txq->sw_tx_ring.skbs[idx].flags = 0; -} - -static u32 qede_xmit_type(struct sk_buff *skb, int *ipv6_ext) -{ - u32 rc = XMIT_L4_CSUM; - __be16 l3_proto; - - if (skb->ip_summed != CHECKSUM_PARTIAL) - return XMIT_PLAIN; - - l3_proto = vlan_get_protocol(skb); - if (l3_proto == htons(ETH_P_IPV6) && - (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPV6)) - *ipv6_ext = 1; - - if (skb->encapsulation) { - rc |= XMIT_ENC; - if (skb_is_gso(skb)) { - unsigned short gso_type = skb_shinfo(skb)->gso_type; - - if ((gso_type & SKB_GSO_UDP_TUNNEL_CSUM) || - (gso_type & SKB_GSO_GRE_CSUM)) - rc |= XMIT_ENC_GSO_L4_CSUM; - - rc |= XMIT_LSO; - return rc; - } - } - - if (skb_is_gso(skb)) - rc |= XMIT_LSO; - - return rc; -} - -static void qede_set_params_for_ipv6_ext(struct sk_buff *skb, - struct eth_tx_2nd_bd *second_bd, - struct eth_tx_3rd_bd *third_bd) -{ - u8 l4_proto; - u16 bd2_bits1 = 0, bd2_bits2 = 0; - - bd2_bits1 |= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT); - - bd2_bits2 |= ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) & - ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK) - << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT; - - bd2_bits1 |= (ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH << - ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT); - - if (vlan_get_protocol(skb) == htons(ETH_P_IPV6)) - l4_proto = ipv6_hdr(skb)->nexthdr; - else - l4_proto = ip_hdr(skb)->protocol; - - if (l4_proto == IPPROTO_UDP) - bd2_bits1 |= 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT; - - if (third_bd) - third_bd->data.bitfields |= - cpu_to_le16(((tcp_hdrlen(skb) / 4) & - ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK) << - ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT); - - second_bd->data.bitfields1 = cpu_to_le16(bd2_bits1); - second_bd->data.bitfields2 = cpu_to_le16(bd2_bits2); -} - -static int map_frag_to_bd(struct qede_tx_queue *txq, - skb_frag_t *frag, struct eth_tx_bd *bd) -{ - dma_addr_t mapping; - - /* Map skb non-linear frag data for DMA */ - mapping = skb_frag_dma_map(txq->dev, frag, 0, - skb_frag_size(frag), DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(txq->dev, mapping))) - return -ENOMEM; - - /* Setup the data pointer of the frag data */ - BD_SET_UNMAP_ADDR_LEN(bd, mapping, skb_frag_size(frag)); - - return 0; -} - -static u16 qede_get_skb_hlen(struct sk_buff *skb, bool is_encap_pkt) -{ - if (is_encap_pkt) - return (skb_inner_transport_header(skb) + - inner_tcp_hdrlen(skb) - skb->data); - else - return (skb_transport_header(skb) + - tcp_hdrlen(skb) - skb->data); -} - -/* +2 for 1st BD for headers and 2nd BD for headlen (if required) */ -#if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET) -static bool qede_pkt_req_lin(struct sk_buff *skb, u8 xmit_type) -{ - int allowed_frags = ETH_TX_MAX_BDS_PER_NON_LSO_PACKET - 1; - - if (xmit_type & XMIT_LSO) { - int hlen; - - hlen = qede_get_skb_hlen(skb, xmit_type & XMIT_ENC); - - /* linear payload would require its own BD */ - if (skb_headlen(skb) > hlen) - allowed_frags--; - } - - return (skb_shinfo(skb)->nr_frags > allowed_frags); -} -#endif - -static inline void qede_update_tx_producer(struct qede_tx_queue *txq) -{ - /* wmb makes sure that the BDs data is updated before updating the - * producer, otherwise FW may read old data from the BDs. - */ - wmb(); - barrier(); - writel(txq->tx_db.raw, txq->doorbell_addr); - - /* mmiowb is needed to synchronize doorbell writes from more than one - * processor. It guarantees that the write arrives to the device before - * the queue lock is released and another start_xmit is called (possibly - * on another CPU). Without this barrier, the next doorbell can bypass - * this doorbell. This is applicable to IA64/Altix systems. - */ - mmiowb(); -} - -static int qede_xdp_xmit(struct qede_dev *edev, struct qede_fastpath *fp, - struct sw_rx_data *metadata, u16 padding, u16 length) -{ - struct qede_tx_queue *txq = fp->xdp_tx; - u16 idx = txq->sw_tx_prod & NUM_TX_BDS_MAX; - struct eth_tx_1st_bd *first_bd; - - if (!qed_chain_get_elem_left(&txq->tx_pbl)) { - txq->stopped_cnt++; - return -ENOMEM; - } - - first_bd = (struct eth_tx_1st_bd *)qed_chain_produce(&txq->tx_pbl); - - memset(first_bd, 0, sizeof(*first_bd)); - first_bd->data.bd_flags.bitfields = - BIT(ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT); - first_bd->data.bitfields |= - (length & ETH_TX_DATA_1ST_BD_PKT_LEN_MASK) << - ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT; - first_bd->data.nbds = 1; - - /* We can safely ignore the offset, as it's 0 for XDP */ - BD_SET_UNMAP_ADDR_LEN(first_bd, metadata->mapping + padding, length); - - /* Synchronize the buffer back to device, as program [probably] - * has changed it. - */ - dma_sync_single_for_device(&edev->pdev->dev, - metadata->mapping + padding, - length, PCI_DMA_TODEVICE); - - txq->sw_tx_ring.pages[idx] = metadata->data; - txq->sw_tx_prod++; - - /* Mark the fastpath for future XDP doorbell */ - fp->xdp_xmit = 1; - - return 0; -} - -/* Main transmit function */ -static netdev_tx_t qede_start_xmit(struct sk_buff *skb, - struct net_device *ndev) -{ - struct qede_dev *edev = netdev_priv(ndev); - struct netdev_queue *netdev_txq; - struct qede_tx_queue *txq; - struct eth_tx_1st_bd *first_bd; - struct eth_tx_2nd_bd *second_bd = NULL; - struct eth_tx_3rd_bd *third_bd = NULL; - struct eth_tx_bd *tx_data_bd = NULL; - u16 txq_index; - u8 nbd = 0; - dma_addr_t mapping; - int rc, frag_idx = 0, ipv6_ext = 0; - u8 xmit_type; - u16 idx; - u16 hlen; - bool data_split = false; - - /* Get tx-queue context and netdev index */ - txq_index = skb_get_queue_mapping(skb); - WARN_ON(txq_index >= QEDE_TSS_COUNT(edev)); - txq = edev->fp_array[edev->fp_num_rx + txq_index].txq; - netdev_txq = netdev_get_tx_queue(ndev, txq_index); - - WARN_ON(qed_chain_get_elem_left(&txq->tx_pbl) < (MAX_SKB_FRAGS + 1)); - - xmit_type = qede_xmit_type(skb, &ipv6_ext); - -#if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET) - if (qede_pkt_req_lin(skb, xmit_type)) { - if (skb_linearize(skb)) { - DP_NOTICE(edev, - "SKB linearization failed - silently dropping this SKB\n"); - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; - } - } -#endif - - /* Fill the entry in the SW ring and the BDs in the FW ring */ - idx = txq->sw_tx_prod & NUM_TX_BDS_MAX; - txq->sw_tx_ring.skbs[idx].skb = skb; - first_bd = (struct eth_tx_1st_bd *) - qed_chain_produce(&txq->tx_pbl); - memset(first_bd, 0, sizeof(*first_bd)); - first_bd->data.bd_flags.bitfields = - 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT; - - /* Map skb linear data for DMA and set in the first BD */ - mapping = dma_map_single(txq->dev, skb->data, - skb_headlen(skb), DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(txq->dev, mapping))) { - DP_NOTICE(edev, "SKB mapping failed\n"); - qede_free_failed_tx_pkt(txq, first_bd, 0, false); - qede_update_tx_producer(txq); - return NETDEV_TX_OK; - } - nbd++; - BD_SET_UNMAP_ADDR_LEN(first_bd, mapping, skb_headlen(skb)); - - /* In case there is IPv6 with extension headers or LSO we need 2nd and - * 3rd BDs. - */ - if (unlikely((xmit_type & XMIT_LSO) | ipv6_ext)) { - second_bd = (struct eth_tx_2nd_bd *) - qed_chain_produce(&txq->tx_pbl); - memset(second_bd, 0, sizeof(*second_bd)); - - nbd++; - third_bd = (struct eth_tx_3rd_bd *) - qed_chain_produce(&txq->tx_pbl); - memset(third_bd, 0, sizeof(*third_bd)); - - nbd++; - /* We need to fill in additional data in second_bd... */ - tx_data_bd = (struct eth_tx_bd *)second_bd; - } - - if (skb_vlan_tag_present(skb)) { - first_bd->data.vlan = cpu_to_le16(skb_vlan_tag_get(skb)); - first_bd->data.bd_flags.bitfields |= - 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT; - } - - /* Fill the parsing flags & params according to the requested offload */ - if (xmit_type & XMIT_L4_CSUM) { - /* We don't re-calculate IP checksum as it is already done by - * the upper stack - */ - first_bd->data.bd_flags.bitfields |= - 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT; - - if (xmit_type & XMIT_ENC) { - first_bd->data.bd_flags.bitfields |= - 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT; - first_bd->data.bitfields |= - 1 << ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT; - } - - /* Legacy FW had flipped behavior in regard to this bit - - * I.e., needed to set to prevent FW from touching encapsulated - * packets when it didn't need to. - */ - if (unlikely(txq->is_legacy)) - first_bd->data.bitfields ^= - 1 << ETH_TX_DATA_1ST_BD_TUNN_FLAG_SHIFT; - - /* If the packet is IPv6 with extension header, indicate that - * to FW and pass few params, since the device cracker doesn't - * support parsing IPv6 with extension header/s. - */ - if (unlikely(ipv6_ext)) - qede_set_params_for_ipv6_ext(skb, second_bd, third_bd); - } - - if (xmit_type & XMIT_LSO) { - first_bd->data.bd_flags.bitfields |= - (1 << ETH_TX_1ST_BD_FLAGS_LSO_SHIFT); - third_bd->data.lso_mss = - cpu_to_le16(skb_shinfo(skb)->gso_size); - - if (unlikely(xmit_type & XMIT_ENC)) { - first_bd->data.bd_flags.bitfields |= - 1 << ETH_TX_1ST_BD_FLAGS_TUNN_IP_CSUM_SHIFT; - - if (xmit_type & XMIT_ENC_GSO_L4_CSUM) { - u8 tmp = ETH_TX_1ST_BD_FLAGS_TUNN_L4_CSUM_SHIFT; - - first_bd->data.bd_flags.bitfields |= 1 << tmp; - } - hlen = qede_get_skb_hlen(skb, true); - } else { - first_bd->data.bd_flags.bitfields |= - 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT; - hlen = qede_get_skb_hlen(skb, false); - } - - /* @@@TBD - if will not be removed need to check */ - third_bd->data.bitfields |= - cpu_to_le16((1 << ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT)); - - /* Make life easier for FW guys who can't deal with header and - * data on same BD. If we need to split, use the second bd... - */ - if (unlikely(skb_headlen(skb) > hlen)) { - DP_VERBOSE(edev, NETIF_MSG_TX_QUEUED, - "TSO split header size is %d (%x:%x)\n", - first_bd->nbytes, first_bd->addr.hi, - first_bd->addr.lo); - - mapping = HILO_U64(le32_to_cpu(first_bd->addr.hi), - le32_to_cpu(first_bd->addr.lo)) + - hlen; - - BD_SET_UNMAP_ADDR_LEN(tx_data_bd, mapping, - le16_to_cpu(first_bd->nbytes) - - hlen); - - /* this marks the BD as one that has no - * individual mapping - */ - txq->sw_tx_ring.skbs[idx].flags |= QEDE_TSO_SPLIT_BD; - - first_bd->nbytes = cpu_to_le16(hlen); - - tx_data_bd = (struct eth_tx_bd *)third_bd; - data_split = true; - } - } else { - first_bd->data.bitfields |= - (skb->len & ETH_TX_DATA_1ST_BD_PKT_LEN_MASK) << - ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT; - } - - /* Handle fragmented skb */ - /* special handle for frags inside 2nd and 3rd bds.. */ - while (tx_data_bd && frag_idx < skb_shinfo(skb)->nr_frags) { - rc = map_frag_to_bd(txq, - &skb_shinfo(skb)->frags[frag_idx], - tx_data_bd); - if (rc) { - qede_free_failed_tx_pkt(txq, first_bd, nbd, data_split); - qede_update_tx_producer(txq); - return NETDEV_TX_OK; - } - - if (tx_data_bd == (struct eth_tx_bd *)second_bd) - tx_data_bd = (struct eth_tx_bd *)third_bd; - else - tx_data_bd = NULL; - - frag_idx++; - } - - /* map last frags into 4th, 5th .... */ - for (; frag_idx < skb_shinfo(skb)->nr_frags; frag_idx++, nbd++) { - tx_data_bd = (struct eth_tx_bd *) - qed_chain_produce(&txq->tx_pbl); - - memset(tx_data_bd, 0, sizeof(*tx_data_bd)); - - rc = map_frag_to_bd(txq, - &skb_shinfo(skb)->frags[frag_idx], - tx_data_bd); - if (rc) { - qede_free_failed_tx_pkt(txq, first_bd, nbd, data_split); - qede_update_tx_producer(txq); - return NETDEV_TX_OK; - } - } - - /* update the first BD with the actual num BDs */ - first_bd->data.nbds = nbd; - - netdev_tx_sent_queue(netdev_txq, skb->len); - - skb_tx_timestamp(skb); - - /* Advance packet producer only before sending the packet since mapping - * of pages may fail. - */ - txq->sw_tx_prod++; - - /* 'next page' entries are counted in the producer value */ - txq->tx_db.data.bd_prod = - cpu_to_le16(qed_chain_get_prod_idx(&txq->tx_pbl)); - - if (!skb->xmit_more || netif_xmit_stopped(netdev_txq)) - qede_update_tx_producer(txq); - - if (unlikely(qed_chain_get_elem_left(&txq->tx_pbl) - < (MAX_SKB_FRAGS + 1))) { - if (skb->xmit_more) - qede_update_tx_producer(txq); - - netif_tx_stop_queue(netdev_txq); - txq->stopped_cnt++; - DP_VERBOSE(edev, NETIF_MSG_TX_QUEUED, - "Stop queue was called\n"); - /* paired memory barrier is in qede_tx_int(), we have to keep - * ordering of set_bit() in netif_tx_stop_queue() and read of - * fp->bd_tx_cons - */ - smp_mb(); - - if (qed_chain_get_elem_left(&txq->tx_pbl) - >= (MAX_SKB_FRAGS + 1) && - (edev->state == QEDE_STATE_OPEN)) { - netif_tx_wake_queue(netdev_txq); - DP_VERBOSE(edev, NETIF_MSG_TX_QUEUED, - "Wake queue was called\n"); - } - } - - return NETDEV_TX_OK; -} - -int qede_txq_has_work(struct qede_tx_queue *txq) -{ - u16 hw_bd_cons; - - /* Tell compiler that consumer and producer can change */ - barrier(); - hw_bd_cons = le16_to_cpu(*txq->hw_cons_ptr); - if (qed_chain_get_cons_idx(&txq->tx_pbl) == hw_bd_cons + 1) - return 0; - - return hw_bd_cons != qed_chain_get_cons_idx(&txq->tx_pbl); -} - -static void qede_xdp_tx_int(struct qede_dev *edev, struct qede_tx_queue *txq) -{ - struct eth_tx_1st_bd *bd; - u16 hw_bd_cons; - - hw_bd_cons = le16_to_cpu(*txq->hw_cons_ptr); - barrier(); - - while (hw_bd_cons != qed_chain_get_cons_idx(&txq->tx_pbl)) { - bd = (struct eth_tx_1st_bd *)qed_chain_consume(&txq->tx_pbl); - - dma_unmap_single(&edev->pdev->dev, BD_UNMAP_ADDR(bd), - PAGE_SIZE, DMA_BIDIRECTIONAL); - __free_page(txq->sw_tx_ring.pages[txq->sw_tx_cons & - NUM_TX_BDS_MAX]); - - txq->sw_tx_cons++; - txq->xmit_pkts++; - } -} - -static int qede_tx_int(struct qede_dev *edev, struct qede_tx_queue *txq) -{ - struct netdev_queue *netdev_txq; - u16 hw_bd_cons; - unsigned int pkts_compl = 0, bytes_compl = 0; - int rc; - - netdev_txq = netdev_get_tx_queue(edev->ndev, txq->index); - - hw_bd_cons = le16_to_cpu(*txq->hw_cons_ptr); - barrier(); - - while (hw_bd_cons != qed_chain_get_cons_idx(&txq->tx_pbl)) { - int len = 0; - - rc = qede_free_tx_pkt(edev, txq, &len); - if (rc) { - DP_NOTICE(edev, "hw_bd_cons = %d, chain_cons=%d\n", - hw_bd_cons, - qed_chain_get_cons_idx(&txq->tx_pbl)); - break; - } - - bytes_compl += len; - pkts_compl++; - txq->sw_tx_cons++; - txq->xmit_pkts++; - } - - netdev_tx_completed_queue(netdev_txq, pkts_compl, bytes_compl); - - /* Need to make the tx_bd_cons update visible to start_xmit() - * before checking for netif_tx_queue_stopped(). Without the - * memory barrier, there is a small possibility that - * start_xmit() will miss it and cause the queue to be stopped - * forever. - * On the other hand we need an rmb() here to ensure the proper - * ordering of bit testing in the following - * netif_tx_queue_stopped(txq) call. - */ - smp_mb(); - - if (unlikely(netif_tx_queue_stopped(netdev_txq))) { - /* Taking tx_lock is needed to prevent reenabling the queue - * while it's empty. This could have happen if rx_action() gets - * suspended in qede_tx_int() after the condition before - * netif_tx_wake_queue(), while tx_action (qede_start_xmit()): - * - * stops the queue->sees fresh tx_bd_cons->releases the queue-> - * sends some packets consuming the whole queue again-> - * stops the queue - */ - - __netif_tx_lock(netdev_txq, smp_processor_id()); - - if ((netif_tx_queue_stopped(netdev_txq)) && - (edev->state == QEDE_STATE_OPEN) && - (qed_chain_get_elem_left(&txq->tx_pbl) - >= (MAX_SKB_FRAGS + 1))) { - netif_tx_wake_queue(netdev_txq); - DP_VERBOSE(edev, NETIF_MSG_TX_DONE, - "Wake queue was called\n"); - } - - __netif_tx_unlock(netdev_txq); - } - - return 0; -} - -bool qede_has_rx_work(struct qede_rx_queue *rxq) -{ - u16 hw_comp_cons, sw_comp_cons; - - /* Tell compiler that status block fields can change */ - barrier(); - - hw_comp_cons = le16_to_cpu(*rxq->hw_cons_ptr); - sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring); - - return hw_comp_cons != sw_comp_cons; -} - -static inline void qede_rx_bd_ring_consume(struct qede_rx_queue *rxq) -{ - qed_chain_consume(&rxq->rx_bd_ring); - rxq->sw_rx_cons++; -} - -/* This function reuses the buffer(from an offset) from - * consumer index to producer index in the bd ring - */ -static inline void qede_reuse_page(struct qede_rx_queue *rxq, - struct sw_rx_data *curr_cons) -{ - struct eth_rx_bd *rx_bd_prod = qed_chain_produce(&rxq->rx_bd_ring); - struct sw_rx_data *curr_prod; - dma_addr_t new_mapping; - - curr_prod = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX]; - *curr_prod = *curr_cons; - - new_mapping = curr_prod->mapping + curr_prod->page_offset; - - rx_bd_prod->addr.hi = cpu_to_le32(upper_32_bits(new_mapping)); - rx_bd_prod->addr.lo = cpu_to_le32(lower_32_bits(new_mapping)); - - rxq->sw_rx_prod++; - curr_cons->data = NULL; -} - -/* In case of allocation failures reuse buffers - * from consumer index to produce buffers for firmware - */ -void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, u8 count) -{ - struct sw_rx_data *curr_cons; - - for (; count > 0; count--) { - curr_cons = &rxq->sw_rx_ring[rxq->sw_rx_cons & NUM_RX_BDS_MAX]; - qede_reuse_page(rxq, curr_cons); - qede_rx_bd_ring_consume(rxq); - } -} - -static int qede_alloc_rx_buffer(struct qede_rx_queue *rxq) -{ - struct sw_rx_data *sw_rx_data; - struct eth_rx_bd *rx_bd; - dma_addr_t mapping; - struct page *data; - - data = alloc_pages(GFP_ATOMIC, 0); - if (unlikely(!data)) - return -ENOMEM; - - /* Map the entire page as it would be used - * for multiple RX buffer segment size mapping. - */ - mapping = dma_map_page(rxq->dev, data, 0, - PAGE_SIZE, rxq->data_direction); - if (unlikely(dma_mapping_error(rxq->dev, mapping))) { - __free_page(data); - return -ENOMEM; - } - - sw_rx_data = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX]; - sw_rx_data->page_offset = 0; - sw_rx_data->data = data; - sw_rx_data->mapping = mapping; - - /* Advance PROD and get BD pointer */ - rx_bd = (struct eth_rx_bd *)qed_chain_produce(&rxq->rx_bd_ring); - WARN_ON(!rx_bd); - rx_bd->addr.hi = cpu_to_le32(upper_32_bits(mapping)); - rx_bd->addr.lo = cpu_to_le32(lower_32_bits(mapping)); - - rxq->sw_rx_prod++; - - return 0; -} - -static inline int qede_realloc_rx_buffer(struct qede_rx_queue *rxq, - struct sw_rx_data *curr_cons) -{ - /* Move to the next segment in the page */ - curr_cons->page_offset += rxq->rx_buf_seg_size; - - if (curr_cons->page_offset == PAGE_SIZE) { - if (unlikely(qede_alloc_rx_buffer(rxq))) { - /* Since we failed to allocate new buffer - * current buffer can be used again. - */ - curr_cons->page_offset -= rxq->rx_buf_seg_size; - - return -ENOMEM; - } - - dma_unmap_page(rxq->dev, curr_cons->mapping, - PAGE_SIZE, rxq->data_direction); - } else { - /* Increment refcount of the page as we don't want - * network stack to take the ownership of the page - * which can be recycled multiple times by the driver. - */ - page_ref_inc(curr_cons->data); - qede_reuse_page(rxq, curr_cons); - } - - return 0; -} - -void qede_update_rx_prod(struct qede_dev *edev, struct qede_rx_queue *rxq) -{ - u16 bd_prod = qed_chain_get_prod_idx(&rxq->rx_bd_ring); - u16 cqe_prod = qed_chain_get_prod_idx(&rxq->rx_comp_ring); - struct eth_rx_prod_data rx_prods = {0}; - - /* Update producers */ - rx_prods.bd_prod = cpu_to_le16(bd_prod); - rx_prods.cqe_prod = cpu_to_le16(cqe_prod); - - /* Make sure that the BD and SGE data is updated before updating the - * producers since FW might read the BD/SGE right after the producer - * is updated. - */ - wmb(); - - internal_ram_wr(rxq->hw_rxq_prod_addr, sizeof(rx_prods), - (u32 *)&rx_prods); - - /* mmiowb is needed to synchronize doorbell writes from more than one - * processor. It guarantees that the write arrives to the device before - * the napi lock is released and another qede_poll is called (possibly - * on another CPU). Without this barrier, the next doorbell can bypass - * this doorbell. This is applicable to IA64/Altix systems. - */ - mmiowb(); -} - -static void qede_get_rxhash(struct sk_buff *skb, u8 bitfields, __le32 rss_hash) -{ - enum pkt_hash_types hash_type = PKT_HASH_TYPE_NONE; - enum rss_hash_type htype; - u32 hash = 0; - - htype = GET_FIELD(bitfields, ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE); - if (htype) { - hash_type = ((htype == RSS_HASH_TYPE_IPV4) || - (htype == RSS_HASH_TYPE_IPV6)) ? - PKT_HASH_TYPE_L3 : PKT_HASH_TYPE_L4; - hash = le32_to_cpu(rss_hash); - } - skb_set_hash(skb, hash, hash_type); -} - -static void qede_set_skb_csum(struct sk_buff *skb, u8 csum_flag) -{ - skb_checksum_none_assert(skb); - - if (csum_flag & QEDE_CSUM_UNNECESSARY) - skb->ip_summed = CHECKSUM_UNNECESSARY; - - if (csum_flag & QEDE_TUNN_CSUM_UNNECESSARY) - skb->csum_level = 1; -} - -static inline void qede_skb_receive(struct qede_dev *edev, - struct qede_fastpath *fp, - struct qede_rx_queue *rxq, - struct sk_buff *skb, u16 vlan_tag) -{ - if (vlan_tag) - __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_tag); - - napi_gro_receive(&fp->napi, skb); - fp->rxq->rcv_pkts++; -} - -static void qede_set_gro_params(struct qede_dev *edev, - struct sk_buff *skb, - struct eth_fast_path_rx_tpa_start_cqe *cqe) -{ - u16 parsing_flags = le16_to_cpu(cqe->pars_flags.flags); - - if (((parsing_flags >> PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT) & - PARSING_AND_ERR_FLAGS_L3TYPE_MASK) == 2) - skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; - else - skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; - - skb_shinfo(skb)->gso_size = __le16_to_cpu(cqe->len_on_first_bd) - - cqe->header_len; -} - -static int qede_fill_frag_skb(struct qede_dev *edev, - struct qede_rx_queue *rxq, - u8 tpa_agg_index, u16 len_on_bd) -{ - struct sw_rx_data *current_bd = &rxq->sw_rx_ring[rxq->sw_rx_cons & - NUM_RX_BDS_MAX]; - struct qede_agg_info *tpa_info = &rxq->tpa_info[tpa_agg_index]; - struct sk_buff *skb = tpa_info->skb; - - if (unlikely(tpa_info->state != QEDE_AGG_STATE_START)) - goto out; - - /* Add one frag and update the appropriate fields in the skb */ - skb_fill_page_desc(skb, tpa_info->frag_id++, - current_bd->data, current_bd->page_offset, - len_on_bd); - - if (unlikely(qede_realloc_rx_buffer(rxq, current_bd))) { - /* Incr page ref count to reuse on allocation failure - * so that it doesn't get freed while freeing SKB. - */ - page_ref_inc(current_bd->data); - goto out; - } - - qed_chain_consume(&rxq->rx_bd_ring); - rxq->sw_rx_cons++; - - skb->data_len += len_on_bd; - skb->truesize += rxq->rx_buf_seg_size; - skb->len += len_on_bd; - - return 0; - -out: - tpa_info->state = QEDE_AGG_STATE_ERROR; - qede_recycle_rx_bd_ring(rxq, 1); - - return -ENOMEM; -} - -static void qede_tpa_start(struct qede_dev *edev, - struct qede_rx_queue *rxq, - struct eth_fast_path_rx_tpa_start_cqe *cqe) -{ - struct qede_agg_info *tpa_info = &rxq->tpa_info[cqe->tpa_agg_index]; - struct eth_rx_bd *rx_bd_cons = qed_chain_consume(&rxq->rx_bd_ring); - struct eth_rx_bd *rx_bd_prod = qed_chain_produce(&rxq->rx_bd_ring); - struct sw_rx_data *replace_buf = &tpa_info->buffer; - dma_addr_t mapping = tpa_info->buffer_mapping; - struct sw_rx_data *sw_rx_data_cons; - struct sw_rx_data *sw_rx_data_prod; - - sw_rx_data_cons = &rxq->sw_rx_ring[rxq->sw_rx_cons & NUM_RX_BDS_MAX]; - sw_rx_data_prod = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX]; - - /* Use pre-allocated replacement buffer - we can't release the agg. - * start until its over and we don't want to risk allocation failing - * here, so re-allocate when aggregation will be over. - */ - sw_rx_data_prod->mapping = replace_buf->mapping; - - sw_rx_data_prod->data = replace_buf->data; - rx_bd_prod->addr.hi = cpu_to_le32(upper_32_bits(mapping)); - rx_bd_prod->addr.lo = cpu_to_le32(lower_32_bits(mapping)); - sw_rx_data_prod->page_offset = replace_buf->page_offset; - - rxq->sw_rx_prod++; - - /* move partial skb from cons to pool (don't unmap yet) - * save mapping, incase we drop the packet later on. - */ - tpa_info->buffer = *sw_rx_data_cons; - mapping = HILO_U64(le32_to_cpu(rx_bd_cons->addr.hi), - le32_to_cpu(rx_bd_cons->addr.lo)); - - tpa_info->buffer_mapping = mapping; - rxq->sw_rx_cons++; - - /* set tpa state to start only if we are able to allocate skb - * for this aggregation, otherwise mark as error and aggregation will - * be dropped - */ - tpa_info->skb = netdev_alloc_skb(edev->ndev, - le16_to_cpu(cqe->len_on_first_bd)); - if (unlikely(!tpa_info->skb)) { - DP_NOTICE(edev, "Failed to allocate SKB for gro\n"); - tpa_info->state = QEDE_AGG_STATE_ERROR; - goto cons_buf; - } - - /* Start filling in the aggregation info */ - skb_put(tpa_info->skb, le16_to_cpu(cqe->len_on_first_bd)); - tpa_info->frag_id = 0; - tpa_info->state = QEDE_AGG_STATE_START; - - /* Store some information from first CQE */ - tpa_info->start_cqe_placement_offset = cqe->placement_offset; - tpa_info->start_cqe_bd_len = le16_to_cpu(cqe->len_on_first_bd); - if ((le16_to_cpu(cqe->pars_flags.flags) >> - PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT) & - PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK) - tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); - else - tpa_info->vlan_tag = 0; - - qede_get_rxhash(tpa_info->skb, cqe->bitfields, cqe->rss_hash); - - /* This is needed in order to enable forwarding support */ - qede_set_gro_params(edev, tpa_info->skb, cqe); - -cons_buf: /* We still need to handle bd_len_list to consume buffers */ - if (likely(cqe->ext_bd_len_list[0])) - qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index, - le16_to_cpu(cqe->ext_bd_len_list[0])); - - if (unlikely(cqe->ext_bd_len_list[1])) { - DP_ERR(edev, - "Unlikely - got a TPA aggregation with more than one ext_bd_len_list entry in the TPA start\n"); - tpa_info->state = QEDE_AGG_STATE_ERROR; - } -} - -#ifdef CONFIG_INET -static void qede_gro_ip_csum(struct sk_buff *skb) -{ - const struct iphdr *iph = ip_hdr(skb); - struct tcphdr *th; - - skb_set_transport_header(skb, sizeof(struct iphdr)); - th = tcp_hdr(skb); - - th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb), - iph->saddr, iph->daddr, 0); - - tcp_gro_complete(skb); -} - -static void qede_gro_ipv6_csum(struct sk_buff *skb) -{ - struct ipv6hdr *iph = ipv6_hdr(skb); - struct tcphdr *th; - - skb_set_transport_header(skb, sizeof(struct ipv6hdr)); - th = tcp_hdr(skb); - - th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), - &iph->saddr, &iph->daddr, 0); - tcp_gro_complete(skb); -} -#endif - -static void qede_gro_receive(struct qede_dev *edev, - struct qede_fastpath *fp, - struct sk_buff *skb, - u16 vlan_tag) -{ - /* FW can send a single MTU sized packet from gro flow - * due to aggregation timeout/last segment etc. which - * is not expected to be a gro packet. If a skb has zero - * frags then simply push it in the stack as non gso skb. - */ - if (unlikely(!skb->data_len)) { - skb_shinfo(skb)->gso_type = 0; - skb_shinfo(skb)->gso_size = 0; - goto send_skb; - } - -#ifdef CONFIG_INET - if (skb_shinfo(skb)->gso_size) { - skb_reset_network_header(skb); - - switch (skb->protocol) { - case htons(ETH_P_IP): - qede_gro_ip_csum(skb); - break; - case htons(ETH_P_IPV6): - qede_gro_ipv6_csum(skb); - break; - default: - DP_ERR(edev, - "Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n", - ntohs(skb->protocol)); - } - } -#endif - -send_skb: - skb_record_rx_queue(skb, fp->rxq->rxq_id); - qede_skb_receive(edev, fp, fp->rxq, skb, vlan_tag); -} - -static inline void qede_tpa_cont(struct qede_dev *edev, - struct qede_rx_queue *rxq, - struct eth_fast_path_rx_tpa_cont_cqe *cqe) -{ - int i; - - for (i = 0; cqe->len_list[i]; i++) - qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index, - le16_to_cpu(cqe->len_list[i])); - - if (unlikely(i > 1)) - DP_ERR(edev, - "Strange - TPA cont with more than a single len_list entry\n"); -} - -static void qede_tpa_end(struct qede_dev *edev, - struct qede_fastpath *fp, - struct eth_fast_path_rx_tpa_end_cqe *cqe) -{ - struct qede_rx_queue *rxq = fp->rxq; - struct qede_agg_info *tpa_info; - struct sk_buff *skb; - int i; - - tpa_info = &rxq->tpa_info[cqe->tpa_agg_index]; - skb = tpa_info->skb; - - for (i = 0; cqe->len_list[i]; i++) - qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index, - le16_to_cpu(cqe->len_list[i])); - if (unlikely(i > 1)) - DP_ERR(edev, - "Strange - TPA emd with more than a single len_list entry\n"); - - if (unlikely(tpa_info->state != QEDE_AGG_STATE_START)) - goto err; - - /* Sanity */ - if (unlikely(cqe->num_of_bds != tpa_info->frag_id + 1)) - DP_ERR(edev, - "Strange - TPA had %02x BDs, but SKB has only %d frags\n", - cqe->num_of_bds, tpa_info->frag_id); - if (unlikely(skb->len != le16_to_cpu(cqe->total_packet_len))) - DP_ERR(edev, - "Strange - total packet len [cqe] is %4x but SKB has len %04x\n", - le16_to_cpu(cqe->total_packet_len), skb->len); - - memcpy(skb->data, - page_address(tpa_info->buffer.data) + - tpa_info->start_cqe_placement_offset + - tpa_info->buffer.page_offset, tpa_info->start_cqe_bd_len); - - /* Finalize the SKB */ - skb->protocol = eth_type_trans(skb, edev->ndev); - skb->ip_summed = CHECKSUM_UNNECESSARY; - - /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count - * to skb_shinfo(skb)->gso_segs - */ - NAPI_GRO_CB(skb)->count = le16_to_cpu(cqe->num_of_coalesced_segs); - - qede_gro_receive(edev, fp, skb, tpa_info->vlan_tag); - - tpa_info->state = QEDE_AGG_STATE_NONE; - - return; -err: - tpa_info->state = QEDE_AGG_STATE_NONE; - dev_kfree_skb_any(tpa_info->skb); - tpa_info->skb = NULL; -} - -static bool qede_tunn_exist(u16 flag) -{ - return !!(flag & (PARSING_AND_ERR_FLAGS_TUNNELEXIST_MASK << - PARSING_AND_ERR_FLAGS_TUNNELEXIST_SHIFT)); -} - -static u8 qede_check_tunn_csum(u16 flag) -{ - u16 csum_flag = 0; - u8 tcsum = 0; - - if (flag & (PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_MASK << - PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMWASCALCULATED_SHIFT)) - csum_flag |= PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_MASK << - PARSING_AND_ERR_FLAGS_TUNNELL4CHKSMERROR_SHIFT; - - if (flag & (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK << - PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT)) { - csum_flag |= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK << - PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT; - tcsum = QEDE_TUNN_CSUM_UNNECESSARY; - } - - csum_flag |= PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_MASK << - PARSING_AND_ERR_FLAGS_TUNNELIPHDRERROR_SHIFT | - PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK << - PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT; - - if (csum_flag & flag) - return QEDE_CSUM_ERROR; - - return QEDE_CSUM_UNNECESSARY | tcsum; -} - -static u8 qede_check_notunn_csum(u16 flag) -{ - u16 csum_flag = 0; - u8 csum = 0; - - if (flag & (PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK << - PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT)) { - csum_flag |= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK << - PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT; - csum = QEDE_CSUM_UNNECESSARY; - } - - csum_flag |= PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK << - PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT; - - if (csum_flag & flag) - return QEDE_CSUM_ERROR; - - return csum; -} - -static u8 qede_check_csum(u16 flag) -{ - if (!qede_tunn_exist(flag)) - return qede_check_notunn_csum(flag); - else - return qede_check_tunn_csum(flag); -} - -static bool qede_pkt_is_ip_fragmented(struct eth_fast_path_rx_reg_cqe *cqe, - u16 flag) -{ - u8 tun_pars_flg = cqe->tunnel_pars_flags.flags; - - if ((tun_pars_flg & (ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_MASK << - ETH_TUNNEL_PARSING_FLAGS_IPV4_FRAGMENT_SHIFT)) || - (flag & (PARSING_AND_ERR_FLAGS_IPV4FRAG_MASK << - PARSING_AND_ERR_FLAGS_IPV4FRAG_SHIFT))) - return true; - - return false; -} - -/* Return true iff packet is to be passed to stack */ -static bool qede_rx_xdp(struct qede_dev *edev, - struct qede_fastpath *fp, - struct qede_rx_queue *rxq, - struct bpf_prog *prog, - struct sw_rx_data *bd, - struct eth_fast_path_rx_reg_cqe *cqe) -{ - u16 len = le16_to_cpu(cqe->len_on_first_bd); - struct xdp_buff xdp; - enum xdp_action act; - - xdp.data = page_address(bd->data) + cqe->placement_offset; - xdp.data_end = xdp.data + len; - - /* Queues always have a full reset currently, so for the time - * being until there's atomic program replace just mark read - * side for map helpers. - */ - rcu_read_lock(); - act = bpf_prog_run_xdp(prog, &xdp); - rcu_read_unlock(); - - if (act == XDP_PASS) - return true; - - /* Count number of packets not to be passed to stack */ - rxq->xdp_no_pass++; - - switch (act) { - case XDP_TX: - /* We need the replacement buffer before transmit. */ - if (qede_alloc_rx_buffer(rxq)) { - qede_recycle_rx_bd_ring(rxq, 1); - return false; - } - - /* Now if there's a transmission problem, we'd still have to - * throw current buffer, as replacement was already allocated. - */ - if (qede_xdp_xmit(edev, fp, bd, cqe->placement_offset, len)) { - dma_unmap_page(rxq->dev, bd->mapping, - PAGE_SIZE, DMA_BIDIRECTIONAL); - __free_page(bd->data); - } - - /* Regardless, we've consumed an Rx BD */ - qede_rx_bd_ring_consume(rxq); - return false; - - default: - bpf_warn_invalid_xdp_action(act); - case XDP_ABORTED: - case XDP_DROP: - qede_recycle_rx_bd_ring(rxq, cqe->bd_num); - } - - return false; -} - -static struct sk_buff *qede_rx_allocate_skb(struct qede_dev *edev, - struct qede_rx_queue *rxq, - struct sw_rx_data *bd, u16 len, - u16 pad) -{ - unsigned int offset = bd->page_offset; - struct skb_frag_struct *frag; - struct page *page = bd->data; - unsigned int pull_len; - struct sk_buff *skb; - unsigned char *va; - - /* Allocate a new SKB with a sufficient large header len */ - skb = netdev_alloc_skb(edev->ndev, QEDE_RX_HDR_SIZE); - if (unlikely(!skb)) - return NULL; - - /* Copy data into SKB - if it's small, we can simply copy it and - * re-use the already allcoated & mapped memory. - */ - if (len + pad <= edev->rx_copybreak) { - memcpy(skb_put(skb, len), - page_address(page) + pad + offset, len); - qede_reuse_page(rxq, bd); - goto out; - } - - frag = &skb_shinfo(skb)->frags[0]; - - skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, - page, pad + offset, len, rxq->rx_buf_seg_size); - - va = skb_frag_address(frag); - pull_len = eth_get_headlen(va, QEDE_RX_HDR_SIZE); - - /* Align the pull_len to optimize memcpy */ - memcpy(skb->data, va, ALIGN(pull_len, sizeof(long))); - - /* Correct the skb & frag sizes offset after the pull */ - skb_frag_size_sub(frag, pull_len); - frag->page_offset += pull_len; - skb->data_len -= pull_len; - skb->tail += pull_len; - - if (unlikely(qede_realloc_rx_buffer(rxq, bd))) { - /* Incr page ref count to reuse on allocation failure so - * that it doesn't get freed while freeing SKB [as its - * already mapped there]. - */ - page_ref_inc(page); - dev_kfree_skb_any(skb); - return NULL; - } - -out: - /* We've consumed the first BD and prepared an SKB */ - qede_rx_bd_ring_consume(rxq); - return skb; -} - -static int qede_rx_build_jumbo(struct qede_dev *edev, - struct qede_rx_queue *rxq, - struct sk_buff *skb, - struct eth_fast_path_rx_reg_cqe *cqe, - u16 first_bd_len) -{ - u16 pkt_len = le16_to_cpu(cqe->pkt_len); - struct sw_rx_data *bd; - u16 bd_cons_idx; - u8 num_frags; - - pkt_len -= first_bd_len; - - /* We've already used one BD for the SKB. Now take care of the rest */ - for (num_frags = cqe->bd_num - 1; num_frags > 0; num_frags--) { - u16 cur_size = pkt_len > rxq->rx_buf_size ? rxq->rx_buf_size : - pkt_len; - - if (unlikely(!cur_size)) { - DP_ERR(edev, - "Still got %d BDs for mapping jumbo, but length became 0\n", - num_frags); - goto out; - } - - /* We need a replacement buffer for each BD */ - if (unlikely(qede_alloc_rx_buffer(rxq))) - goto out; - - /* Now that we've allocated the replacement buffer, - * we can safely consume the next BD and map it to the SKB. - */ - bd_cons_idx = rxq->sw_rx_cons & NUM_RX_BDS_MAX; - bd = &rxq->sw_rx_ring[bd_cons_idx]; - qede_rx_bd_ring_consume(rxq); - - dma_unmap_page(rxq->dev, bd->mapping, - PAGE_SIZE, DMA_FROM_DEVICE); - - skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags++, - bd->data, 0, cur_size); - - skb->truesize += PAGE_SIZE; - skb->data_len += cur_size; - skb->len += cur_size; - pkt_len -= cur_size; - } - - if (unlikely(pkt_len)) - DP_ERR(edev, - "Mapped all BDs of jumbo, but still have %d bytes\n", - pkt_len); - -out: - return num_frags; -} - -static int qede_rx_process_tpa_cqe(struct qede_dev *edev, - struct qede_fastpath *fp, - struct qede_rx_queue *rxq, - union eth_rx_cqe *cqe, - enum eth_rx_cqe_type type) -{ - switch (type) { - case ETH_RX_CQE_TYPE_TPA_START: - qede_tpa_start(edev, rxq, &cqe->fast_path_tpa_start); - return 0; - case ETH_RX_CQE_TYPE_TPA_CONT: - qede_tpa_cont(edev, rxq, &cqe->fast_path_tpa_cont); - return 0; - case ETH_RX_CQE_TYPE_TPA_END: - qede_tpa_end(edev, fp, &cqe->fast_path_tpa_end); - return 1; - default: - return 0; - } -} - -static int qede_rx_process_cqe(struct qede_dev *edev, - struct qede_fastpath *fp, - struct qede_rx_queue *rxq) -{ - struct bpf_prog *xdp_prog = READ_ONCE(rxq->xdp_prog); - struct eth_fast_path_rx_reg_cqe *fp_cqe; - u16 len, pad, bd_cons_idx, parse_flag; - enum eth_rx_cqe_type cqe_type; - union eth_rx_cqe *cqe; - struct sw_rx_data *bd; - struct sk_buff *skb; - __le16 flags; - u8 csum_flag; - - /* Get the CQE from the completion ring */ - cqe = (union eth_rx_cqe *)qed_chain_consume(&rxq->rx_comp_ring); - cqe_type = cqe->fast_path_regular.type; - - /* Process an unlikely slowpath event */ - if (unlikely(cqe_type == ETH_RX_CQE_TYPE_SLOW_PATH)) { - struct eth_slow_path_rx_cqe *sp_cqe; - - sp_cqe = (struct eth_slow_path_rx_cqe *)cqe; - edev->ops->eth_cqe_completion(edev->cdev, fp->id, sp_cqe); - return 0; - } - - /* Handle TPA cqes */ - if (cqe_type != ETH_RX_CQE_TYPE_REGULAR) - return qede_rx_process_tpa_cqe(edev, fp, rxq, cqe, cqe_type); - - /* Get the data from the SW ring; Consume it only after it's evident - * we wouldn't recycle it. - */ - bd_cons_idx = rxq->sw_rx_cons & NUM_RX_BDS_MAX; - bd = &rxq->sw_rx_ring[bd_cons_idx]; - - fp_cqe = &cqe->fast_path_regular; - len = le16_to_cpu(fp_cqe->len_on_first_bd); - pad = fp_cqe->placement_offset; - - /* Run eBPF program if one is attached */ - if (xdp_prog) - if (!qede_rx_xdp(edev, fp, rxq, xdp_prog, bd, fp_cqe)) - return 1; - - /* If this is an error packet then drop it */ - flags = cqe->fast_path_regular.pars_flags.flags; - parse_flag = le16_to_cpu(flags); - - csum_flag = qede_check_csum(parse_flag); - if (unlikely(csum_flag == QEDE_CSUM_ERROR)) { - if (qede_pkt_is_ip_fragmented(fp_cqe, parse_flag)) { - rxq->rx_ip_frags++; - } else { - DP_NOTICE(edev, - "CQE has error, flags = %x, dropping incoming packet\n", - parse_flag); - rxq->rx_hw_errors++; - qede_recycle_rx_bd_ring(rxq, fp_cqe->bd_num); - return 0; - } - } - - /* Basic validation passed; Need to prepare an SKB. This would also - * guarantee to finally consume the first BD upon success. - */ - skb = qede_rx_allocate_skb(edev, rxq, bd, len, pad); - if (!skb) { - rxq->rx_alloc_errors++; - qede_recycle_rx_bd_ring(rxq, fp_cqe->bd_num); - return 0; - } - - /* In case of Jumbo packet, several PAGE_SIZEd buffers will be pointed - * by a single cqe. - */ - if (fp_cqe->bd_num > 1) { - u16 unmapped_frags = qede_rx_build_jumbo(edev, rxq, skb, - fp_cqe, len); - - if (unlikely(unmapped_frags > 0)) { - qede_recycle_rx_bd_ring(rxq, unmapped_frags); - dev_kfree_skb_any(skb); - return 0; - } - } - - /* The SKB contains all the data. Now prepare meta-magic */ - skb->protocol = eth_type_trans(skb, edev->ndev); - qede_get_rxhash(skb, fp_cqe->bitfields, fp_cqe->rss_hash); - qede_set_skb_csum(skb, csum_flag); - skb_record_rx_queue(skb, rxq->rxq_id); - - /* SKB is prepared - pass it to stack */ - qede_skb_receive(edev, fp, rxq, skb, le16_to_cpu(fp_cqe->vlan_tag)); - - return 1; -} - -static int qede_rx_int(struct qede_fastpath *fp, int budget) -{ - struct qede_rx_queue *rxq = fp->rxq; - struct qede_dev *edev = fp->edev; - u16 hw_comp_cons, sw_comp_cons; - int work_done = 0; - - hw_comp_cons = le16_to_cpu(*rxq->hw_cons_ptr); - sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring); - - /* Memory barrier to prevent the CPU from doing speculative reads of CQE - * / BD in the while-loop before reading hw_comp_cons. If the CQE is - * read before it is written by FW, then FW writes CQE and SB, and then - * the CPU reads the hw_comp_cons, it will use an old CQE. - */ - rmb(); - - /* Loop to complete all indicated BDs */ - while ((sw_comp_cons != hw_comp_cons) && (work_done < budget)) { - qede_rx_process_cqe(edev, fp, rxq); - qed_chain_recycle_consumed(&rxq->rx_comp_ring); - sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring); - work_done++; - } - - /* Update producers */ - qede_update_rx_prod(edev, rxq); - - return work_done; -} - -static bool qede_poll_is_more_work(struct qede_fastpath *fp) -{ - qed_sb_update_sb_idx(fp->sb_info); - - /* *_has_*_work() reads the status block, thus we need to ensure that - * status block indices have been actually read (qed_sb_update_sb_idx) - * prior to this check (*_has_*_work) so that we won't write the - * "newer" value of the status block to HW (if there was a DMA right - * after qede_has_rx_work and if there is no rmb, the memory reading - * (qed_sb_update_sb_idx) may be postponed to right before *_ack_sb). - * In this case there will never be another interrupt until there is - * another update of the status block, while there is still unhandled - * work. - */ - rmb(); - - if (likely(fp->type & QEDE_FASTPATH_RX)) - if (qede_has_rx_work(fp->rxq)) - return true; - - if (fp->type & QEDE_FASTPATH_XDP) - if (qede_txq_has_work(fp->xdp_tx)) - return true; - - if (likely(fp->type & QEDE_FASTPATH_TX)) - if (qede_txq_has_work(fp->txq)) - return true; - - return false; -} - -static int qede_poll(struct napi_struct *napi, int budget) -{ - struct qede_fastpath *fp = container_of(napi, struct qede_fastpath, - napi); - struct qede_dev *edev = fp->edev; - int rx_work_done = 0; - - if (likely(fp->type & QEDE_FASTPATH_TX) && qede_txq_has_work(fp->txq)) - qede_tx_int(edev, fp->txq); - - if ((fp->type & QEDE_FASTPATH_XDP) && qede_txq_has_work(fp->xdp_tx)) - qede_xdp_tx_int(edev, fp->xdp_tx); - - rx_work_done = (likely(fp->type & QEDE_FASTPATH_RX) && - qede_has_rx_work(fp->rxq)) ? - qede_rx_int(fp, budget) : 0; - if (rx_work_done < budget) { - if (!qede_poll_is_more_work(fp)) { - napi_complete(napi); - - /* Update and reenable interrupts */ - qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1); - } else { - rx_work_done = budget; - } - } - - if (fp->xdp_xmit) { - u16 xdp_prod = qed_chain_get_prod_idx(&fp->xdp_tx->tx_pbl); - - fp->xdp_xmit = 0; - fp->xdp_tx->tx_db.data.bd_prod = cpu_to_le16(xdp_prod); - qede_update_tx_producer(fp->xdp_tx); - } - - return rx_work_done; -} - -static irqreturn_t qede_msix_fp_int(int irq, void *fp_cookie) -{ - struct qede_fastpath *fp = fp_cookie; - - qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 /*do not update*/); - - napi_schedule_irqoff(&fp->napi); - return IRQ_HANDLED; -} - -/* ------------------------------------------------------------------------- - * END OF FAST-PATH - * ------------------------------------------------------------------------- - */ - static int qede_open(struct net_device *ndev); static int qede_close(struct net_device *ndev); -static int qede_set_mac_addr(struct net_device *ndev, void *p); -static void qede_set_rx_mode(struct net_device *ndev); -static void qede_config_rx_mode(struct net_device *ndev); - -static int qede_set_ucast_rx_mac(struct qede_dev *edev, - enum qed_filter_xcast_params_type opcode, - unsigned char mac[ETH_ALEN]) -{ - struct qed_filter_params filter_cmd; - - memset(&filter_cmd, 0, sizeof(filter_cmd)); - filter_cmd.type = QED_FILTER_TYPE_UCAST; - filter_cmd.filter.ucast.type = opcode; - filter_cmd.filter.ucast.mac_valid = 1; - ether_addr_copy(filter_cmd.filter.ucast.mac, mac); - - return edev->ops->filter_config(edev->cdev, &filter_cmd); -} - -static int qede_set_ucast_rx_vlan(struct qede_dev *edev, - enum qed_filter_xcast_params_type opcode, - u16 vid) -{ - struct qed_filter_params filter_cmd; - - memset(&filter_cmd, 0, sizeof(filter_cmd)); - filter_cmd.type = QED_FILTER_TYPE_UCAST; - filter_cmd.filter.ucast.type = opcode; - filter_cmd.filter.ucast.vlan_valid = 1; - filter_cmd.filter.ucast.vlan = vid; - - return edev->ops->filter_config(edev->cdev, &filter_cmd); -} void qede_fill_by_demand_stats(struct qede_dev *edev) { @@ -2019,9 +399,8 @@ void qede_fill_by_demand_stats(struct qede_dev *edev) edev->stats.tx_mac_ctrl_frames = stats.tx_mac_ctrl_frames; } -static -struct rtnl_link_stats64 *qede_get_stats64(struct net_device *dev, - struct rtnl_link_stats64 *stats) +static void qede_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) { struct qede_dev *edev = netdev_priv(dev); @@ -2051,8 +430,6 @@ struct rtnl_link_stats64 *qede_get_stats64(struct net_device *dev, stats->collisions = edev->stats.tx_total_collisions; stats->rx_crc_errors = edev->stats.rx_crc_errors; stats->rx_frame_errors = edev->stats.rx_align_errors; - - return stats; } #ifdef CONFIG_QED_SRIOV @@ -2096,445 +473,37 @@ static int qede_set_vf_link_state(struct net_device *dev, int vfidx, return edev->ops->iov->set_link_state(edev->cdev, vfidx, link_state); } -#endif -static void qede_config_accept_any_vlan(struct qede_dev *edev, bool action) -{ - struct qed_update_vport_params params; - int rc; - - /* Proceed only if action actually needs to be performed */ - if (edev->accept_any_vlan == action) - return; - - memset(¶ms, 0, sizeof(params)); - - params.vport_id = 0; - params.accept_any_vlan = action; - params.update_accept_any_vlan_flg = 1; - - rc = edev->ops->vport_update(edev->cdev, ¶ms); - if (rc) { - DP_ERR(edev, "Failed to %s accept-any-vlan\n", - action ? "enable" : "disable"); - } else { - DP_INFO(edev, "%s accept-any-vlan\n", - action ? "enabled" : "disabled"); - edev->accept_any_vlan = action; - } -} - -static int qede_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) +static int qede_set_vf_trust(struct net_device *dev, int vfidx, bool setting) { struct qede_dev *edev = netdev_priv(dev); - struct qede_vlan *vlan, *tmp; - int rc = 0; - - DP_VERBOSE(edev, NETIF_MSG_IFUP, "Adding vlan 0x%04x\n", vid); - - vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); - if (!vlan) { - DP_INFO(edev, "Failed to allocate struct for vlan\n"); - return -ENOMEM; - } - INIT_LIST_HEAD(&vlan->list); - vlan->vid = vid; - vlan->configured = false; - - /* Verify vlan isn't already configured */ - list_for_each_entry(tmp, &edev->vlan_list, list) { - if (tmp->vid == vlan->vid) { - DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN), - "vlan already configured\n"); - kfree(vlan); - return -EEXIST; - } - } - - /* If interface is down, cache this VLAN ID and return */ - __qede_lock(edev); - if (edev->state != QEDE_STATE_OPEN) { - DP_VERBOSE(edev, NETIF_MSG_IFDOWN, - "Interface is down, VLAN %d will be configured when interface is up\n", - vid); - if (vid != 0) - edev->non_configured_vlans++; - list_add(&vlan->list, &edev->vlan_list); - goto out; - } - - /* Check for the filter limit. - * Note - vlan0 has a reserved filter and can be added without - * worrying about quota - */ - if ((edev->configured_vlans < edev->dev_info.num_vlan_filters) || - (vlan->vid == 0)) { - rc = qede_set_ucast_rx_vlan(edev, - QED_FILTER_XCAST_TYPE_ADD, - vlan->vid); - if (rc) { - DP_ERR(edev, "Failed to configure VLAN %d\n", - vlan->vid); - kfree(vlan); - goto out; - } - vlan->configured = true; - - /* vlan0 filter isn't consuming out of our quota */ - if (vlan->vid != 0) - edev->configured_vlans++; - } else { - /* Out of quota; Activate accept-any-VLAN mode */ - if (!edev->non_configured_vlans) - qede_config_accept_any_vlan(edev, true); - - edev->non_configured_vlans++; - } - - list_add(&vlan->list, &edev->vlan_list); - -out: - __qede_unlock(edev); - return rc; -} - -static void qede_del_vlan_from_list(struct qede_dev *edev, - struct qede_vlan *vlan) -{ - /* vlan0 filter isn't consuming out of our quota */ - if (vlan->vid != 0) { - if (vlan->configured) - edev->configured_vlans--; - else - edev->non_configured_vlans--; - } - - list_del(&vlan->list); - kfree(vlan); -} - -static int qede_configure_vlan_filters(struct qede_dev *edev) -{ - int rc = 0, real_rc = 0, accept_any_vlan = 0; - struct qed_dev_eth_info *dev_info; - struct qede_vlan *vlan = NULL; - - if (list_empty(&edev->vlan_list)) - return 0; - - dev_info = &edev->dev_info; - - /* Configure non-configured vlans */ - list_for_each_entry(vlan, &edev->vlan_list, list) { - if (vlan->configured) - continue; - - /* We have used all our credits, now enable accept_any_vlan */ - if ((vlan->vid != 0) && - (edev->configured_vlans == dev_info->num_vlan_filters)) { - accept_any_vlan = 1; - continue; - } - - DP_VERBOSE(edev, NETIF_MSG_IFUP, "Adding vlan %d\n", vlan->vid); - - rc = qede_set_ucast_rx_vlan(edev, QED_FILTER_XCAST_TYPE_ADD, - vlan->vid); - if (rc) { - DP_ERR(edev, "Failed to configure VLAN %u\n", - vlan->vid); - real_rc = rc; - continue; - } - - vlan->configured = true; - /* vlan0 filter doesn't consume our VLAN filter's quota */ - if (vlan->vid != 0) { - edev->non_configured_vlans--; - edev->configured_vlans++; - } - } - - /* enable accept_any_vlan mode if we have more VLANs than credits, - * or remove accept_any_vlan mode if we've actually removed - * a non-configured vlan, and all remaining vlans are truly configured. - */ - - if (accept_any_vlan) - qede_config_accept_any_vlan(edev, true); - else if (!edev->non_configured_vlans) - qede_config_accept_any_vlan(edev, false); - - return real_rc; -} - -static int qede_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) -{ - struct qede_dev *edev = netdev_priv(dev); - struct qede_vlan *vlan = NULL; - int rc = 0; - - DP_VERBOSE(edev, NETIF_MSG_IFDOWN, "Removing vlan 0x%04x\n", vid); - - /* Find whether entry exists */ - __qede_lock(edev); - list_for_each_entry(vlan, &edev->vlan_list, list) - if (vlan->vid == vid) - break; - - if (!vlan || (vlan->vid != vid)) { - DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN), - "Vlan isn't configured\n"); - goto out; - } - - if (edev->state != QEDE_STATE_OPEN) { - /* As interface is already down, we don't have a VPORT - * instance to remove vlan filter. So just update vlan list - */ - DP_VERBOSE(edev, NETIF_MSG_IFDOWN, - "Interface is down, removing VLAN from list only\n"); - qede_del_vlan_from_list(edev, vlan); - goto out; - } - - /* Remove vlan */ - if (vlan->configured) { - rc = qede_set_ucast_rx_vlan(edev, QED_FILTER_XCAST_TYPE_DEL, - vid); - if (rc) { - DP_ERR(edev, "Failed to remove VLAN %d\n", vid); - goto out; - } - } - - qede_del_vlan_from_list(edev, vlan); - - /* We have removed a VLAN - try to see if we can - * configure non-configured VLAN from the list. - */ - rc = qede_configure_vlan_filters(edev); - -out: - __qede_unlock(edev); - return rc; -} - -static void qede_vlan_mark_nonconfigured(struct qede_dev *edev) -{ - struct qede_vlan *vlan = NULL; - - if (list_empty(&edev->vlan_list)) - return; - - list_for_each_entry(vlan, &edev->vlan_list, list) { - if (!vlan->configured) - continue; - - vlan->configured = false; - - /* vlan0 filter isn't consuming out of our quota */ - if (vlan->vid != 0) { - edev->non_configured_vlans++; - edev->configured_vlans--; - } - - DP_VERBOSE(edev, NETIF_MSG_IFDOWN, - "marked vlan %d as non-configured\n", vlan->vid); - } - - edev->accept_any_vlan = false; -} -static void qede_set_features_reload(struct qede_dev *edev, - struct qede_reload_args *args) -{ - edev->ndev->features = args->u.features; -} - -int qede_set_features(struct net_device *dev, netdev_features_t features) -{ - struct qede_dev *edev = netdev_priv(dev); - netdev_features_t changes = features ^ dev->features; - bool need_reload = false; - - /* No action needed if hardware GRO is disabled during driver load */ - if (changes & NETIF_F_GRO) { - if (dev->features & NETIF_F_GRO) - need_reload = !edev->gro_disable; - else - need_reload = edev->gro_disable; - } - - if (need_reload) { - struct qede_reload_args args; - - args.u.features = features; - args.func = &qede_set_features_reload; - - /* Make sure that we definitely need to reload. - * In case of an eBPF attached program, there will be no FW - * aggregations, so no need to actually reload. - */ - __qede_lock(edev); - if (edev->xdp_prog) - args.func(edev, &args); - else - qede_reload(edev, &args, true); - __qede_unlock(edev); - - return 1; - } - - return 0; -} - -static void qede_udp_tunnel_add(struct net_device *dev, - struct udp_tunnel_info *ti) -{ - struct qede_dev *edev = netdev_priv(dev); - u16 t_port = ntohs(ti->port); - - switch (ti->type) { - case UDP_TUNNEL_TYPE_VXLAN: - if (edev->vxlan_dst_port) - return; - - edev->vxlan_dst_port = t_port; - - DP_VERBOSE(edev, QED_MSG_DEBUG, "Added vxlan port=%d\n", - t_port); - - set_bit(QEDE_SP_VXLAN_PORT_CONFIG, &edev->sp_flags); - break; - case UDP_TUNNEL_TYPE_GENEVE: - if (edev->geneve_dst_port) - return; - - edev->geneve_dst_port = t_port; - - DP_VERBOSE(edev, QED_MSG_DEBUG, "Added geneve port=%d\n", - t_port); - set_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags); - break; - default: - return; - } + if (!edev->ops) + return -EINVAL; - schedule_delayed_work(&edev->sp_task, 0); + return edev->ops->iov->set_trust(edev->cdev, vfidx, setting); } +#endif -static void qede_udp_tunnel_del(struct net_device *dev, - struct udp_tunnel_info *ti) +static int qede_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { struct qede_dev *edev = netdev_priv(dev); - u16 t_port = ntohs(ti->port); - - switch (ti->type) { - case UDP_TUNNEL_TYPE_VXLAN: - if (t_port != edev->vxlan_dst_port) - return; - edev->vxlan_dst_port = 0; + if (!netif_running(dev)) + return -EAGAIN; - DP_VERBOSE(edev, QED_MSG_DEBUG, "Deleted vxlan port=%d\n", - t_port); - - set_bit(QEDE_SP_VXLAN_PORT_CONFIG, &edev->sp_flags); - break; - case UDP_TUNNEL_TYPE_GENEVE: - if (t_port != edev->geneve_dst_port) - return; - - edev->geneve_dst_port = 0; - - DP_VERBOSE(edev, QED_MSG_DEBUG, "Deleted geneve port=%d\n", - t_port); - set_bit(QEDE_SP_GENEVE_PORT_CONFIG, &edev->sp_flags); - break; + switch (cmd) { + case SIOCSHWTSTAMP: + return qede_ptp_hw_ts(edev, ifr); default: - return; - } - - schedule_delayed_work(&edev->sp_task, 0); -} - -/* 8B udp header + 8B base tunnel header + 32B option length */ -#define QEDE_MAX_TUN_HDR_LEN 48 - -static netdev_features_t qede_features_check(struct sk_buff *skb, - struct net_device *dev, - netdev_features_t features) -{ - if (skb->encapsulation) { - u8 l4_proto = 0; - - switch (vlan_get_protocol(skb)) { - case htons(ETH_P_IP): - l4_proto = ip_hdr(skb)->protocol; - break; - case htons(ETH_P_IPV6): - l4_proto = ipv6_hdr(skb)->nexthdr; - break; - default: - return features; - } - - /* Disable offloads for geneve tunnels, as HW can't parse - * the geneve header which has option length greater than 32B. - */ - if ((l4_proto == IPPROTO_UDP) && - ((skb_inner_mac_header(skb) - - skb_transport_header(skb)) > QEDE_MAX_TUN_HDR_LEN)) - return features & ~(NETIF_F_CSUM_MASK | - NETIF_F_GSO_MASK); - } - - return features; -} - -static void qede_xdp_reload_func(struct qede_dev *edev, - struct qede_reload_args *args) -{ - struct bpf_prog *old; - - old = xchg(&edev->xdp_prog, args->u.new_prog); - if (old) - bpf_prog_put(old); -} - -static int qede_xdp_set(struct qede_dev *edev, struct bpf_prog *prog) -{ - struct qede_reload_args args; - - if (prog && prog->xdp_adjust_head) { - DP_ERR(edev, "Does not support bpf_xdp_adjust_head()\n"); + DP_VERBOSE(edev, QED_MSG_DEBUG, + "default IOCTL cmd 0x%x\n", cmd); return -EOPNOTSUPP; } - /* If we're called, there was already a bpf reference increment */ - args.func = &qede_xdp_reload_func; - args.u.new_prog = prog; - qede_reload(edev, &args, false); - return 0; } -static int qede_xdp(struct net_device *dev, struct netdev_xdp *xdp) -{ - struct qede_dev *edev = netdev_priv(dev); - - switch (xdp->command) { - case XDP_SETUP_PROG: - return qede_xdp_set(edev, xdp->prog); - case XDP_QUERY_PROG: - xdp->prog_attached = !!edev->xdp_prog; - return 0; - default: - return -EINVAL; - } -} - static const struct net_device_ops qede_netdev_ops = { .ndo_open = qede_open, .ndo_stop = qede_close, @@ -2543,9 +512,11 @@ static const struct net_device_ops qede_netdev_ops = { .ndo_set_mac_address = qede_set_mac_addr, .ndo_validate_addr = eth_validate_addr, .ndo_change_mtu = qede_change_mtu, + .ndo_do_ioctl = qede_ioctl, #ifdef CONFIG_QED_SRIOV .ndo_set_vf_mac = qede_set_vf_mac, .ndo_set_vf_vlan = qede_set_vf_vlan, + .ndo_set_vf_trust = qede_set_vf_trust, #endif .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid, @@ -2814,7 +785,7 @@ static void qede_update_pf_params(struct qed_dev *cdev) /* 64 rx + 64 tx + 64 XDP */ memset(&pf_params, 0, sizeof(struct qed_pf_params)); - pf_params.eth_pf_params.num_cons = 192; + pf_params.eth_pf_params.num_cons = (MAX_SB_PER_PF_MIMD - 1) * 3; qed_ops->common->update_pf_params(cdev, &pf_params); } @@ -2883,6 +854,13 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, if (rc) goto err3; + /* Prepare the lock prior to the registeration of the netdev, + * as once it's registered we might reach flows requiring it + * [it's even possible to reach a flow needing it directly + * from there, although it's unlikely]. + */ + INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task); + mutex_init(&edev->qede_lock); rc = register_netdev(edev->ndev); if (rc) { DP_NOTICE(edev, "Cannot register net-device\n"); @@ -2891,6 +869,15 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION); + /* PTP not supported on VFs */ + if (!is_vf) { + rc = qede_ptp_register_phc(edev); + if (rc) { + DP_NOTICE(edev, "Cannot register PHC\n"); + goto err5; + } + } + edev->ops->register_ops(cdev, &qede_ll_ops, edev); #ifdef CONFIG_DCB @@ -2898,14 +885,14 @@ static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, qede_set_dcbnl_ops(edev->ndev); #endif - INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task); - mutex_init(&edev->qede_lock); edev->rx_copybreak = QEDE_RX_HDR_SIZE; DP_INFO(edev, "Ending successfully qede probe\n"); return 0; +err5: + unregister_netdev(edev->ndev); err4: qede_roce_dev_remove(edev); err3: @@ -2957,6 +944,8 @@ static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode) unregister_netdev(ndev); + qede_ptp_remove(edev); + qede_roce_dev_remove(edev); edev->ops->common->set_power_state(cdev, PCI_D0); @@ -2967,14 +956,20 @@ static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode) if (edev->xdp_prog) bpf_prog_put(edev->xdp_prog); - free_netdev(ndev); - /* Use global ops since we've freed edev */ qed_ops->common->slowpath_stop(cdev); if (system_state == SYSTEM_POWER_OFF) return; qed_ops->common->remove(cdev); + /* Since this can happen out-of-sync with other flows, + * don't release the netdevice until after slowpath stop + * has been called to guarantee various other contexts + * [e.g., QED register callbacks] won't break anything when + * accessing the netdevice. + */ + free_netdev(ndev); + dev_info(&pdev->dev, "Ending qede_remove successfully\n"); } @@ -3215,8 +1210,9 @@ static int qede_alloc_mem_rxq(struct qede_dev *edev, struct qede_rx_queue *rxq) goto err; /* Allocate buffers for the Rx ring */ + rxq->filled_buffers = 0; for (i = 0; i < rxq->num_rx_buffers; i++) { - rc = qede_alloc_rx_buffer(rxq); + rc = qede_alloc_rx_buffer(rxq, false); if (rc) { DP_ERR(edev, "Rx buffers allocation failed at index %d\n", i); @@ -3564,19 +1560,24 @@ static int qede_stop_txq(struct qede_dev *edev, static int qede_stop_queues(struct qede_dev *edev) { - struct qed_update_vport_params vport_update_params; + struct qed_update_vport_params *vport_update_params; struct qed_dev *cdev = edev->cdev; struct qede_fastpath *fp; int rc, i; /* Disable the vport */ - memset(&vport_update_params, 0, sizeof(vport_update_params)); - vport_update_params.vport_id = 0; - vport_update_params.update_vport_active_flg = 1; - vport_update_params.vport_active_flg = 0; - vport_update_params.update_rss_flg = 0; + vport_update_params = vzalloc(sizeof(*vport_update_params)); + if (!vport_update_params) + return -ENOMEM; + + vport_update_params->vport_id = 0; + vport_update_params->update_vport_active_flg = 1; + vport_update_params->vport_active_flg = 0; + vport_update_params->update_rss_flg = 0; + + rc = edev->ops->vport_update(cdev, vport_update_params); + vfree(vport_update_params); - rc = edev->ops->vport_update(cdev, &vport_update_params); if (rc) { DP_ERR(edev, "Failed to update vport\n"); return rc; @@ -3688,11 +1689,10 @@ static int qede_start_queues(struct qede_dev *edev, bool clear_stats) { int vlan_removal_en = 1; struct qed_dev *cdev = edev->cdev; - struct qed_update_vport_params vport_update_params; - struct qed_queue_start_common_params q_params; struct qed_dev_info *qed_info = &edev->dev_info.common; + struct qed_update_vport_params *vport_update_params; + struct qed_queue_start_common_params q_params; struct qed_start_vport_params start = {0}; - bool reset_rss_indir = false; int rc, i; if (!edev->num_queues) { @@ -3701,6 +1701,11 @@ static int qede_start_queues(struct qede_dev *edev, bool clear_stats) return -EINVAL; } + vport_update_params = vzalloc(sizeof(*vport_update_params)); + if (!vport_update_params) + return -ENOMEM; + + start.handle_ptp_pkts = !!(edev->ptp); start.gro_enable = !edev->gro_disable; start.mtu = edev->ndev->mtu; start.vport_id = 0; @@ -3712,7 +1717,7 @@ static int qede_start_queues(struct qede_dev *edev, bool clear_stats) if (rc) { DP_ERR(edev, "Start V-PORT failed %d\n", rc); - return rc; + goto out; } DP_VERBOSE(edev, NETIF_MSG_IFUP, @@ -3748,7 +1753,7 @@ static int qede_start_queues(struct qede_dev *edev, bool clear_stats) if (rc) { DP_ERR(edev, "Start RXQ #%d failed %d\n", i, rc); - return rc; + goto out; } /* Use the return parameters */ @@ -3764,108 +1769,44 @@ static int qede_start_queues(struct qede_dev *edev, bool clear_stats) if (fp->type & QEDE_FASTPATH_XDP) { rc = qede_start_txq(edev, fp, fp->xdp_tx, i, XDP_PI); if (rc) - return rc; + goto out; fp->rxq->xdp_prog = bpf_prog_add(edev->xdp_prog, 1); if (IS_ERR(fp->rxq->xdp_prog)) { rc = PTR_ERR(fp->rxq->xdp_prog); fp->rxq->xdp_prog = NULL; - return rc; + goto out; } } if (fp->type & QEDE_FASTPATH_TX) { rc = qede_start_txq(edev, fp, fp->txq, i, TX_PI(0)); if (rc) - return rc; + goto out; } } /* Prepare and send the vport enable */ - memset(&vport_update_params, 0, sizeof(vport_update_params)); - vport_update_params.vport_id = start.vport_id; - vport_update_params.update_vport_active_flg = 1; - vport_update_params.vport_active_flg = 1; + vport_update_params->vport_id = start.vport_id; + vport_update_params->update_vport_active_flg = 1; + vport_update_params->vport_active_flg = 1; if ((qed_info->mf_mode == QED_MF_NPAR || pci_num_vf(edev->pdev)) && qed_info->tx_switching) { - vport_update_params.update_tx_switching_flg = 1; - vport_update_params.tx_switching_flg = 1; + vport_update_params->update_tx_switching_flg = 1; + vport_update_params->tx_switching_flg = 1; } - /* Fill struct with RSS params */ - if (QEDE_RSS_COUNT(edev) > 1) { - vport_update_params.update_rss_flg = 1; + qede_fill_rss_params(edev, &vport_update_params->rss_params, + &vport_update_params->update_rss_flg); - /* Need to validate current RSS config uses valid entries */ - for (i = 0; i < QED_RSS_IND_TABLE_SIZE; i++) { - if (edev->rss_params.rss_ind_table[i] >= - QEDE_RSS_COUNT(edev)) { - reset_rss_indir = true; - break; - } - } - - if (!(edev->rss_params_inited & QEDE_RSS_INDIR_INITED) || - reset_rss_indir) { - u16 val; - - for (i = 0; i < QED_RSS_IND_TABLE_SIZE; i++) { - u16 indir_val; - - val = QEDE_RSS_COUNT(edev); - indir_val = ethtool_rxfh_indir_default(i, val); - edev->rss_params.rss_ind_table[i] = indir_val; - } - edev->rss_params_inited |= QEDE_RSS_INDIR_INITED; - } - - if (!(edev->rss_params_inited & QEDE_RSS_KEY_INITED)) { - netdev_rss_key_fill(edev->rss_params.rss_key, - sizeof(edev->rss_params.rss_key)); - edev->rss_params_inited |= QEDE_RSS_KEY_INITED; - } - - if (!(edev->rss_params_inited & QEDE_RSS_CAPS_INITED)) { - edev->rss_params.rss_caps = QED_RSS_IPV4 | - QED_RSS_IPV6 | - QED_RSS_IPV4_TCP | - QED_RSS_IPV6_TCP; - edev->rss_params_inited |= QEDE_RSS_CAPS_INITED; - } - - memcpy(&vport_update_params.rss_params, &edev->rss_params, - sizeof(vport_update_params.rss_params)); - } else { - memset(&vport_update_params.rss_params, 0, - sizeof(vport_update_params.rss_params)); - } - - rc = edev->ops->vport_update(cdev, &vport_update_params); - if (rc) { + rc = edev->ops->vport_update(cdev, vport_update_params); + if (rc) DP_ERR(edev, "Update V-PORT failed %d\n", rc); - return rc; - } - - return 0; -} - -static int qede_set_mcast_rx_mac(struct qede_dev *edev, - enum qed_filter_xcast_params_type opcode, - unsigned char *mac, int num_macs) -{ - struct qed_filter_params filter_cmd; - int i; - - memset(&filter_cmd, 0, sizeof(filter_cmd)); - filter_cmd.type = QED_FILTER_TYPE_MCAST; - filter_cmd.filter.mcast.type = opcode; - filter_cmd.filter.mcast.num = num_macs; - - for (i = 0; i < num_macs; i++, mac += ETH_ALEN) - ether_addr_copy(filter_cmd.filter.mcast.mac[i], mac); - return edev->ops->filter_config(edev->cdev, &filter_cmd); +out: + vfree(vport_update_params); + return rc; } enum qede_unload_mode { @@ -3886,6 +1827,8 @@ static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode, qede_roce_dev_event_close(edev); edev->state = QEDE_STATE_CLOSED; + qede_ptp_stop(edev); + /* Close OS Tx */ netif_tx_disable(edev->ndev); netif_carrier_off(edev->ndev); @@ -3929,7 +1872,6 @@ static int qede_load(struct qede_dev *edev, enum qede_load_mode mode, bool is_locked) { struct qed_link_params link_params; - struct qed_link_output link_output; int rc; DP_INFO(edev, "Starting qede load\n"); @@ -3981,11 +1923,9 @@ static int qede_load(struct qede_dev *edev, enum qede_load_mode mode, link_params.link_up = true; edev->ops->common->set_link(edev->cdev, &link_params); - /* Query whether link is already-up */ - memset(&link_output, 0, sizeof(link_output)); - edev->ops->common->get_link(edev->cdev, &link_output); qede_roce_dev_event_open(edev); - qede_link_update(edev, &link_output); + + qede_ptp_start(edev, (mode == QEDE_LOAD_NORMAL)); edev->state = QEDE_STATE_OPEN; @@ -4097,192 +2037,3 @@ static void qede_link_update(void *dev, struct qed_link_output *link) } } } - -static int qede_set_mac_addr(struct net_device *ndev, void *p) -{ - struct qede_dev *edev = netdev_priv(ndev); - struct sockaddr *addr = p; - int rc; - - ASSERT_RTNL(); /* @@@TBD To be removed */ - - DP_INFO(edev, "Set_mac_addr called\n"); - - if (!is_valid_ether_addr(addr->sa_data)) { - DP_NOTICE(edev, "The MAC address is not valid\n"); - return -EFAULT; - } - - if (!edev->ops->check_mac(edev->cdev, addr->sa_data)) { - DP_NOTICE(edev, "qed prevents setting MAC\n"); - return -EINVAL; - } - - ether_addr_copy(ndev->dev_addr, addr->sa_data); - - if (!netif_running(ndev)) { - DP_NOTICE(edev, "The device is currently down\n"); - return 0; - } - - /* Remove the previous primary mac */ - rc = qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_DEL, - edev->primary_mac); - if (rc) - return rc; - - edev->ops->common->update_mac(edev->cdev, addr->sa_data); - - /* Add MAC filter according to the new unicast HW MAC address */ - ether_addr_copy(edev->primary_mac, ndev->dev_addr); - return qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_ADD, - edev->primary_mac); -} - -static int -qede_configure_mcast_filtering(struct net_device *ndev, - enum qed_filter_rx_mode_type *accept_flags) -{ - struct qede_dev *edev = netdev_priv(ndev); - unsigned char *mc_macs, *temp; - struct netdev_hw_addr *ha; - int rc = 0, mc_count; - size_t size; - - size = 64 * ETH_ALEN; - - mc_macs = kzalloc(size, GFP_KERNEL); - if (!mc_macs) { - DP_NOTICE(edev, - "Failed to allocate memory for multicast MACs\n"); - rc = -ENOMEM; - goto exit; - } - - temp = mc_macs; - - /* Remove all previously configured MAC filters */ - rc = qede_set_mcast_rx_mac(edev, QED_FILTER_XCAST_TYPE_DEL, - mc_macs, 1); - if (rc) - goto exit; - - netif_addr_lock_bh(ndev); - - mc_count = netdev_mc_count(ndev); - if (mc_count < 64) { - netdev_for_each_mc_addr(ha, ndev) { - ether_addr_copy(temp, ha->addr); - temp += ETH_ALEN; - } - } - - netif_addr_unlock_bh(ndev); - - /* Check for all multicast @@@TBD resource allocation */ - if ((ndev->flags & IFF_ALLMULTI) || - (mc_count > 64)) { - if (*accept_flags == QED_FILTER_RX_MODE_TYPE_REGULAR) - *accept_flags = QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC; - } else { - /* Add all multicast MAC filters */ - rc = qede_set_mcast_rx_mac(edev, QED_FILTER_XCAST_TYPE_ADD, - mc_macs, mc_count); - } - -exit: - kfree(mc_macs); - return rc; -} - -static void qede_set_rx_mode(struct net_device *ndev) -{ - struct qede_dev *edev = netdev_priv(ndev); - - set_bit(QEDE_SP_RX_MODE, &edev->sp_flags); - schedule_delayed_work(&edev->sp_task, 0); -} - -/* Must be called with qede_lock held */ -static void qede_config_rx_mode(struct net_device *ndev) -{ - enum qed_filter_rx_mode_type accept_flags = QED_FILTER_TYPE_UCAST; - struct qede_dev *edev = netdev_priv(ndev); - struct qed_filter_params rx_mode; - unsigned char *uc_macs, *temp; - struct netdev_hw_addr *ha; - int rc, uc_count; - size_t size; - - netif_addr_lock_bh(ndev); - - uc_count = netdev_uc_count(ndev); - size = uc_count * ETH_ALEN; - - uc_macs = kzalloc(size, GFP_ATOMIC); - if (!uc_macs) { - DP_NOTICE(edev, "Failed to allocate memory for unicast MACs\n"); - netif_addr_unlock_bh(ndev); - return; - } - - temp = uc_macs; - netdev_for_each_uc_addr(ha, ndev) { - ether_addr_copy(temp, ha->addr); - temp += ETH_ALEN; - } - - netif_addr_unlock_bh(ndev); - - /* Configure the struct for the Rx mode */ - memset(&rx_mode, 0, sizeof(struct qed_filter_params)); - rx_mode.type = QED_FILTER_TYPE_RX_MODE; - - /* Remove all previous unicast secondary macs and multicast macs - * (configrue / leave the primary mac) - */ - rc = qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_REPLACE, - edev->primary_mac); - if (rc) - goto out; - - /* Check for promiscuous */ - if ((ndev->flags & IFF_PROMISC) || - (uc_count > edev->dev_info.num_mac_filters - 1)) { - accept_flags = QED_FILTER_RX_MODE_TYPE_PROMISC; - } else { - /* Add MAC filters according to the unicast secondary macs */ - int i; - - temp = uc_macs; - for (i = 0; i < uc_count; i++) { - rc = qede_set_ucast_rx_mac(edev, - QED_FILTER_XCAST_TYPE_ADD, - temp); - if (rc) - goto out; - - temp += ETH_ALEN; - } - - rc = qede_configure_mcast_filtering(ndev, &accept_flags); - if (rc) - goto out; - } - - /* take care of VLAN mode */ - if (ndev->flags & IFF_PROMISC) { - qede_config_accept_any_vlan(edev, true); - } else if (!edev->non_configured_vlans) { - /* It's possible that accept_any_vlan mode is set due to a - * previous setting of IFF_PROMISC. If vlan credits are - * sufficient, disable accept_any_vlan. - */ - qede_config_accept_any_vlan(edev, false); - } - - rx_mode.filter.accept_flags = accept_flags; - edev->ops->filter_config(edev->cdev, &rx_mode); -out: - kfree(uc_macs); -} |