diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 89 |
1 files changed, 55 insertions, 34 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c index 4bc794249801..77ea4b716535 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c @@ -357,22 +357,20 @@ int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid, */ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, union ixgbe_adv_rx_desc *rx_desc, - struct sk_buff *skb, - u32 staterr) + struct sk_buff *skb) { - u16 xid; - u32 fctl; - u32 fceofe, fcerr, fcstat; int rc = -EINVAL; struct ixgbe_fcoe *fcoe; struct ixgbe_fcoe_ddp *ddp; struct fc_frame_header *fh; struct fcoe_crc_eof *crc; + __le32 fcerr = ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_FCERR); + __le32 ddp_err; + u32 fctl; + u16 xid; - fcerr = (staterr & IXGBE_RXDADV_ERR_FCERR); - fceofe = (staterr & IXGBE_RXDADV_ERR_FCEOFE); - if (fcerr == IXGBE_FCERR_BADCRC) - skb_checksum_none_assert(skb); + if (fcerr == cpu_to_le32(IXGBE_FCERR_BADCRC)) + skb->ip_summed = CHECKSUM_NONE; else skb->ip_summed = CHECKSUM_UNNECESSARY; @@ -382,6 +380,7 @@ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, else fh = (struct fc_frame_header *)(skb->data + sizeof(struct fcoe_hdr)); + fctl = ntoh24(fh->fh_f_ctl); if (fctl & FC_FC_EX_CTX) xid = be16_to_cpu(fh->fh_ox_id); @@ -396,27 +395,39 @@ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter, if (!ddp->udl) goto ddp_out; - if (fcerr | fceofe) + ddp_err = ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_ERR_FCEOFE | + IXGBE_RXDADV_ERR_FCERR); + if (ddp_err) goto ddp_out; - fcstat = (staterr & IXGBE_RXDADV_STAT_FCSTAT); - if (fcstat) { + switch (ixgbe_test_staterr(rx_desc, IXGBE_RXDADV_STAT_FCSTAT)) { + /* return 0 to bypass going to ULD for DDPed data */ + case __constant_cpu_to_le32(IXGBE_RXDADV_STAT_FCSTAT_DDP): /* update length of DDPed data */ ddp->len = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss); - /* unmap the sg list when FCP_RSP is received */ - if (fcstat == IXGBE_RXDADV_STAT_FCSTAT_FCPRSP) { - pci_unmap_sg(adapter->pdev, ddp->sgl, - ddp->sgc, DMA_FROM_DEVICE); - ddp->err = (fcerr | fceofe); - ddp->sgl = NULL; - ddp->sgc = 0; - } - /* return 0 to bypass going to ULD for DDPed data */ - if (fcstat == IXGBE_RXDADV_STAT_FCSTAT_DDP) - rc = 0; - else if (ddp->len) + rc = 0; + break; + /* unmap the sg list when FCPRSP is received */ + case __constant_cpu_to_le32(IXGBE_RXDADV_STAT_FCSTAT_FCPRSP): + pci_unmap_sg(adapter->pdev, ddp->sgl, + ddp->sgc, DMA_FROM_DEVICE); + ddp->err = ddp_err; + ddp->sgl = NULL; + ddp->sgc = 0; + /* fall through */ + /* if DDP length is present pass it through to ULD */ + case __constant_cpu_to_le32(IXGBE_RXDADV_STAT_FCSTAT_NODDP): + /* update length of DDPed data */ + ddp->len = le32_to_cpu(rx_desc->wb.lower.hi_dword.rss); + if (ddp->len) rc = ddp->len; + break; + /* no match will return as an error */ + case __constant_cpu_to_le32(IXGBE_RXDADV_STAT_FCSTAT_NOMTCH): + default: + break; } + /* In target mode, check the last data frame of the sequence. * For DDP in target mode, data is already DDPed but the header * indication of the last data frame ould allow is to tell if we @@ -436,17 +447,18 @@ ddp_out: /** * ixgbe_fso - ixgbe FCoE Sequence Offload (FSO) * @tx_ring: tx desc ring - * @skb: associated skb - * @tx_flags: tx flags + * @first: first tx_buffer structure containing skb, tx_flags, and protocol * @hdr_len: hdr_len to be returned * * This sets up large send offload for FCoE * - * Returns : 0 indicates no FSO, > 0 for FSO, < 0 for error + * Returns : 0 indicates success, < 0 for error */ -int ixgbe_fso(struct ixgbe_ring *tx_ring, struct sk_buff *skb, - u32 tx_flags, u8 *hdr_len) +int ixgbe_fso(struct ixgbe_ring *tx_ring, + struct ixgbe_tx_buffer *first, + u8 *hdr_len) { + struct sk_buff *skb = first->skb; struct fc_frame_header *fh; u32 vlan_macip_lens; u32 fcoe_sof_eof = 0; @@ -519,9 +531,18 @@ int ixgbe_fso(struct ixgbe_ring *tx_ring, struct sk_buff *skb, *hdr_len = sizeof(struct fcoe_crc_eof); /* hdr_len includes fc_hdr if FCoE LSO is enabled */ - if (skb_is_gso(skb)) - *hdr_len += (skb_transport_offset(skb) + - sizeof(struct fc_frame_header)); + if (skb_is_gso(skb)) { + *hdr_len += skb_transport_offset(skb) + + sizeof(struct fc_frame_header); + /* update gso_segs and bytecount */ + first->gso_segs = DIV_ROUND_UP(skb->len - *hdr_len, + skb_shinfo(skb)->gso_size); + first->bytecount += (first->gso_segs - 1) * *hdr_len; + first->tx_flags |= IXGBE_TX_FLAGS_FSO; + } + + /* set flag indicating FCOE to ixgbe_tx_map call */ + first->tx_flags |= IXGBE_TX_FLAGS_FCOE; /* mss_l4len_id: use 1 for FSO as TSO, no need for L4LEN */ mss_l4len_idx = skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT; @@ -532,13 +553,13 @@ int ixgbe_fso(struct ixgbe_ring *tx_ring, struct sk_buff *skb, sizeof(struct fc_frame_header); vlan_macip_lens |= (skb_transport_offset(skb) - 4) << IXGBE_ADVTXD_MACLEN_SHIFT; - vlan_macip_lens |= tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; + vlan_macip_lens |= first->tx_flags & IXGBE_TX_FLAGS_VLAN_MASK; /* write context desc */ ixgbe_tx_ctxtdesc(tx_ring, vlan_macip_lens, fcoe_sof_eof, IXGBE_ADVTXT_TUCMD_FCOE, mss_l4len_idx); - return skb_is_gso(skb); + return 0; } static void ixgbe_fcoe_ddp_pools_free(struct ixgbe_fcoe *fcoe) |