bnx2x: VLAN tagged packets without VLAN offload
Wrong handling of tagged packet if VLAN offload is disabled caused packets to get corrupted Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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a5e9a7cfad
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0c6671b0d9
2 changed files with 40 additions and 14 deletions
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@ -20,6 +20,11 @@
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* (you will need to reboot afterwards) */
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/* #define BNX2X_STOP_ON_ERROR */
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#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE)
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#define BCM_VLAN 1
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#endif
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/* error/debug prints */
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#define DRV_MODULE_NAME "bnx2x"
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@ -78,11 +83,6 @@
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#endif
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#ifdef NETIF_F_HW_VLAN_TX
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#define BCM_VLAN 1
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#endif
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#define U64_LO(x) (u32)(((u64)(x)) & 0xffffffff)
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#define U64_HI(x) (u32)(((u64)(x)) >> 32)
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#define HILO_U64(hi, lo) ((((u64)(hi)) << 32) + (lo))
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@ -804,6 +804,8 @@ struct bnx2x {
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#define TPA_ENABLE_FLAG 0x80
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#define NO_MCP_FLAG 0x100
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#define BP_NOMCP(bp) (bp->flags & NO_MCP_FLAG)
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#define HW_VLAN_TX_FLAG 0x400
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#define HW_VLAN_RX_FLAG 0x800
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int func;
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#define BP_PORT(bp) (bp->func % PORT_MAX)
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@ -38,9 +38,7 @@
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#include <linux/time.h>
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#include <linux/ethtool.h>
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#include <linux/mii.h>
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#ifdef NETIF_F_HW_VLAN_TX
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#include <linux/if_vlan.h>
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#endif
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#include <linux/if_vlan.h>
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#include <net/ip.h>
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#include <net/tcp.h>
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#include <net/checksum.h>
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@ -1283,6 +1281,13 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
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if (likely(new_skb)) {
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/* fix ip xsum and give it to the stack */
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/* (no need to map the new skb) */
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#ifdef BCM_VLAN
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int is_vlan_cqe =
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(le16_to_cpu(cqe->fast_path_cqe.pars_flags.flags) &
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PARSING_FLAGS_VLAN);
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int is_not_hwaccel_vlan_cqe =
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(is_vlan_cqe && (!(bp->flags & HW_VLAN_RX_FLAG)));
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#endif
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prefetch(skb);
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prefetch(((char *)(skb)) + 128);
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@ -1307,6 +1312,12 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
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struct iphdr *iph;
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iph = (struct iphdr *)skb->data;
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#ifdef BCM_VLAN
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/* If there is no Rx VLAN offloading -
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take VLAN tag into an account */
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if (unlikely(is_not_hwaccel_vlan_cqe))
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iph = (struct iphdr *)((u8 *)iph + VLAN_HLEN);
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#endif
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iph->check = 0;
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iph->check = ip_fast_csum((u8 *)iph, iph->ihl);
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}
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@ -1314,9 +1325,8 @@ static void bnx2x_tpa_stop(struct bnx2x *bp, struct bnx2x_fastpath *fp,
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if (!bnx2x_fill_frag_skb(bp, fp, skb,
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&cqe->fast_path_cqe, cqe_idx)) {
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#ifdef BCM_VLAN
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if ((bp->vlgrp != NULL) &&
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(le16_to_cpu(cqe->fast_path_cqe.pars_flags.flags) &
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PARSING_FLAGS_VLAN))
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if ((bp->vlgrp != NULL) && is_vlan_cqe &&
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(!is_not_hwaccel_vlan_cqe))
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vlan_hwaccel_receive_skb(skb, bp->vlgrp,
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le16_to_cpu(cqe->fast_path_cqe.
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vlan_tag));
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@ -1560,7 +1570,7 @@ reuse_rx:
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}
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#ifdef BCM_VLAN
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if ((bp->vlgrp != NULL) &&
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if ((bp->vlgrp != NULL) && (bp->flags & HW_VLAN_RX_FLAG) &&
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(le16_to_cpu(cqe->fast_path_cqe.pars_flags.flags) &
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PARSING_FLAGS_VLAN))
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vlan_hwaccel_receive_skb(skb, bp->vlgrp,
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@ -4538,7 +4548,7 @@ static void bnx2x_set_client_config(struct bnx2x *bp)
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tstorm_client.config_flags =
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TSTORM_ETH_CLIENT_CONFIG_STATSITICS_ENABLE;
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#ifdef BCM_VLAN
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if (bp->rx_mode && bp->vlgrp) {
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if (bp->rx_mode && bp->vlgrp && (bp->flags & HW_VLAN_RX_FLAG)) {
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tstorm_client.config_flags |=
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TSTORM_ETH_CLIENT_CONFIG_VLAN_REMOVAL_ENABLE;
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DP(NETIF_MSG_IFUP, "vlan removal enabled\n");
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@ -9567,11 +9577,14 @@ static int bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev)
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"sending pkt %u @%p next_idx %u bd %u @%p\n",
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pkt_prod, tx_buf, fp->tx_pkt_prod, bd_prod, tx_bd);
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if ((bp->vlgrp != NULL) && vlan_tx_tag_present(skb)) {
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#ifdef BCM_VLAN
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if ((bp->vlgrp != NULL) && vlan_tx_tag_present(skb) &&
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(bp->flags & HW_VLAN_TX_FLAG)) {
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tx_bd->vlan = cpu_to_le16(vlan_tx_tag_get(skb));
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tx_bd->bd_flags.as_bitfield |= ETH_TX_BD_FLAGS_VLAN_TAG;
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vlan_off += 4;
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} else
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#endif
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tx_bd->vlan = cpu_to_le16(pkt_prod);
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if (xmit_type) {
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@ -10017,6 +10030,16 @@ static void bnx2x_vlan_rx_register(struct net_device *dev,
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struct bnx2x *bp = netdev_priv(dev);
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bp->vlgrp = vlgrp;
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/* Set flags according to the required capabilities */
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bp->flags &= ~(HW_VLAN_RX_FLAG | HW_VLAN_TX_FLAG);
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if (dev->features & NETIF_F_HW_VLAN_TX)
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bp->flags |= HW_VLAN_TX_FLAG;
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if (dev->features & NETIF_F_HW_VLAN_RX)
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bp->flags |= HW_VLAN_RX_FLAG;
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if (netif_running(dev))
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bnx2x_set_client_config(bp);
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}
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@ -10173,6 +10196,7 @@ static int __devinit bnx2x_init_dev(struct pci_dev *pdev,
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dev->features |= NETIF_F_HIGHDMA;
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#ifdef BCM_VLAN
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dev->features |= (NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX);
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bp->flags |= (HW_VLAN_RX_FLAG | HW_VLAN_TX_FLAG);
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#endif
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dev->features |= (NETIF_F_TSO | NETIF_F_TSO_ECN);
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dev->features |= NETIF_F_TSO6;
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