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ixgbe: Always use context 0, even for FCoE and TSO

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We were spending cycles separating the FCoE and TSO contexts even though we
always overwriting the context anyway.  Instead of doing that we can just
use context 0 for all descriptors.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2012-10-30 06:01:45 +00:00 committed by Jeff Kirsher
parent 8f4fbb9bfc
commit c44f5f516e
2 changed files with 2 additions and 12 deletions
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3
drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c
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@ -550,9 +550,8 @@ int ixgbe_fso(struct ixgbe_ring *tx_ring,
/* 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_id: use 0 for FSO as TSO, no need for L4LEN */
mss_l4len_idx = skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT;
mss_l4len_idx |= 1 << IXGBE_ADVTXD_IDX_SHIFT;
/* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
vlan_macip_lens = skb_transport_offset(skb) +

11
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -5944,10 +5944,9 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring,
first->gso_segs = skb_shinfo(skb)->gso_segs;
first->bytecount += (first->gso_segs - 1) * *hdr_len;
/* mss_l4len_id: use 1 as index for TSO */
/* mss_l4len_id: use 0 as index for TSO */
mss_l4len_idx = l4len << IXGBE_ADVTXD_L4LEN_SHIFT;
mss_l4len_idx |= skb_shinfo(skb)->gso_size << IXGBE_ADVTXD_MSS_SHIFT;
mss_l4len_idx |= 1 << IXGBE_ADVTXD_IDX_SHIFT;
/* vlan_macip_lens: HEADLEN, MACLEN, VLAN tag */
vlan_macip_lens = skb_network_header_len(skb);
@ -6073,14 +6072,6 @@ static void ixgbe_tx_olinfo_status(union ixgbe_adv_tx_desc *tx_desc,
if (tx_flags & IXGBE_TX_FLAGS_IPV4)
olinfo_status |= cpu_to_le32(IXGBE_ADVTXD_POPTS_IXSM);
/* use index 1 context for TSO/FSO/FCOE */
#ifdef IXGBE_FCOE
if (tx_flags & (IXGBE_TX_FLAGS_TSO | IXGBE_TX_FLAGS_FCOE))
#else
if (tx_flags & IXGBE_TX_FLAGS_TSO)
#endif
olinfo_status |= cpu_to_le32(1 << IXGBE_ADVTXD_IDX_SHIFT);
/*
* Check Context must be set if Tx switch is enabled, which it
* always is for case where virtual functions are running