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Code Pull requests 5 Wiki Activity

i40e/i40evf: Use u64 values instead of casting them in TSO function

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Instead of casing u32 values to u64 it makes more sense to just start out
with u64 values in the first place.  This way we don't need to create a
mess with all of the casts needed to populate a 64b value.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2016-01-24 21:16:20 -08:00 committed by Jeff Kirsher
parent a9c9a81f58
commit 03f9d6a59f
2 changed files with 8 additions and 10 deletions
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9
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View file

@ -2267,7 +2267,7 @@ static inline int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
u8 *hdr_len, u64 *cd_type_cmd_tso_mss)
{
u32 cd_cmd, cd_tso_len, cd_mss;
u64 cd_cmd, cd_tso_len, cd_mss;
struct ipv6hdr *ipv6h;
struct tcphdr *tcph;
struct iphdr *iph;
@ -2309,10 +2309,9 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
cd_cmd = I40E_TX_CTX_DESC_TSO;
cd_tso_len = skb->len - *hdr_len;
cd_mss = skb_shinfo(skb)->gso_size;
*cd_type_cmd_tso_mss |= ((u64)cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
((u64)cd_tso_len <<
I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
((u64)cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
*cd_type_cmd_tso_mss |= (cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
(cd_tso_len << I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
(cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
return 1;
}

9
drivers/net/ethernet/intel/i40evf/i40e_txrx.c
View file

@ -1527,7 +1527,7 @@ static inline int i40evf_tx_prepare_vlan_flags(struct sk_buff *skb,
static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
u8 *hdr_len, u64 *cd_type_cmd_tso_mss)
{
u32 cd_cmd, cd_tso_len, cd_mss;
u64 cd_cmd, cd_tso_len, cd_mss;
struct ipv6hdr *ipv6h;
struct tcphdr *tcph;
struct iphdr *iph;
@ -1569,10 +1569,9 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
cd_cmd = I40E_TX_CTX_DESC_TSO;
cd_tso_len = skb->len - *hdr_len;
cd_mss = skb_shinfo(skb)->gso_size;
*cd_type_cmd_tso_mss |= ((u64)cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
((u64)cd_tso_len <<
I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
((u64)cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
*cd_type_cmd_tso_mss |= (cd_cmd << I40E_TXD_CTX_QW1_CMD_SHIFT) |
(cd_tso_len << I40E_TXD_CTX_QW1_TSO_LEN_SHIFT) |
(cd_mss << I40E_TXD_CTX_QW1_MSS_SHIFT);
return 1;
}