leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mlx5-fixes-2018-05-24

Browse Source 
-----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJbBzJYAAoJEEg/ir3gV/o+QL8H/2vYqPAClpXyd2ZfQYY2XoeD
 cfu5XLflTS1jhQ6gfQxUNI+eXGoiX6P9cUpFEXiR53Fck3/1t1Jr1kG4SzysVGdB
 X+HARp3fHG1Rpm0J4aRB2hRONtG9GOyqUXwK+pgzdDu5fjhStxvHm/jlNH1NkZWA
 Y4gbgkqAv75Xrj2iEoGATrUFODttMmN3epsVgOytiovR7sbcCdI294kA97YwSb3C
 Id+GmWV027AcEgB3AVatScpOXo7WUh/gIssv1P2JBTWCY7Gsp+SaxaF0fecS7qAm
 +srklCYLQmvZ0sNtnq70bBnQbnj4AR3vSPY/iywx+KbvRV87sCW8iFPCbakJt7Q=
 =ueev
 -----END PGP SIGNATURE-----

Merge tag 'mlx5-fixes-2018-05-24' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahameed says:

====================
Mellanox, mlx5 fixes 2018-05-24

This series includes two mlx5 fixes.

1) add FCS data to checksum complete when required, from Eran Ben
Elisha.

2) Fix A race in IPSec sandbox QP commands, from Yossi Kuperman.

Please pull and let me know if there's any problem.

for -stable v4.15
("net/mlx5e: When RXFCS is set, add FCS data into checksum calculation")
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-05-24 22:01:06 -04:00
commit d681bc027a
2 changed files with 47 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
View File

@ -615,6 +615,45 @@ static inline bool is_last_ethertype_ip(struct sk_buff *skb, int *network_depth)
return (ethertype == htons(ETH_P_IP) || ethertype == htons(ETH_P_IPV6));
}
static __be32 mlx5e_get_fcs(struct sk_buff *skb)
{
int last_frag_sz, bytes_in_prev, nr_frags;
u8 *fcs_p1, *fcs_p2;
skb_frag_t *last_frag;
__be32 fcs_bytes;
if (!skb_is_nonlinear(skb))
return *(__be32 *)(skb->data + skb->len - ETH_FCS_LEN);
nr_frags = skb_shinfo(skb)->nr_frags;
last_frag = &skb_shinfo(skb)->frags[nr_frags - 1];
last_frag_sz = skb_frag_size(last_frag);
/* If all FCS data is in last frag */
if (last_frag_sz >= ETH_FCS_LEN)
return *(__be32 *)(skb_frag_address(last_frag) +
last_frag_sz - ETH_FCS_LEN);
fcs_p2 = (u8 *)skb_frag_address(last_frag);
bytes_in_prev = ETH_FCS_LEN - last_frag_sz;
/* Find where the other part of the FCS is - Linear or another frag */
if (nr_frags == 1) {
fcs_p1 = skb_tail_pointer(skb);
} else {
skb_frag_t *prev_frag = &skb_shinfo(skb)->frags[nr_frags - 2];
fcs_p1 = skb_frag_address(prev_frag) +
skb_frag_size(prev_frag);
}
fcs_p1 -= bytes_in_prev;
memcpy(&fcs_bytes, fcs_p1, bytes_in_prev);
memcpy(((u8 *)&fcs_bytes) + bytes_in_prev, fcs_p2, last_frag_sz);
return fcs_bytes;
}
static inline void mlx5e_handle_csum(struct net_device *netdev,
struct mlx5_cqe64 *cqe,
struct mlx5e_rq *rq,
@ -643,6 +682,9 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
skb->csum = csum_partial(skb->data + ETH_HLEN,
network_depth - ETH_HLEN,
skb->csum);
if (unlikely(netdev->features & NETIF_F_RXFCS))
skb->csum = csum_add(skb->csum,
(__force __wsum)mlx5e_get_fcs(skb));
rq->stats.csum_complete++;
return;
}

12
drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c
View File

@ -237,19 +237,17 @@ static void *mlx5_fpga_ipsec_cmd_exec(struct mlx5_core_dev *mdev,
context->buf.sg[0].data = &context->command;
spin_lock_irqsave(&fdev->ipsec->pending_cmds_lock, flags);
list_add_tail(&context->list, &fdev->ipsec->pending_cmds);
res = mlx5_fpga_sbu_conn_sendmsg(fdev->ipsec->conn, &context->buf);
if (!res)
list_add_tail(&context->list, &fdev->ipsec->pending_cmds);
spin_unlock_irqrestore(&fdev->ipsec->pending_cmds_lock, flags);
res = mlx5_fpga_sbu_conn_sendmsg(fdev->ipsec->conn, &context->buf);
if (res) {
mlx5_fpga_warn(fdev, "Failure sending IPSec command: %d\n",
res);
spin_lock_irqsave(&fdev->ipsec->pending_cmds_lock, flags);
list_del(&context->list);
spin_unlock_irqrestore(&fdev->ipsec->pending_cmds_lock, flags);
mlx5_fpga_warn(fdev, "Failed to send IPSec command: %d\n", res);
kfree(context);
return ERR_PTR(res);
}
/* Context will be freed by wait func after completion */
return context;
}