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authorMoni Shoua <monis@mellanox.com>2016-01-14 17:47:38 +0200
committerDoug Ledford <dledford@redhat.com>2016-01-19 15:24:53 -0500
commit1049f138166ad6ca2e1c8edd2317a71f5b21b9fe (patch)
tree84264b56d98327257344a85868bc93b142ec08ff /drivers/infiniband/hw/mlx4/qp.c
parentIB/mlx4: Initialize hop_limit when creating address handle (diff)
downloadlinux-dev-1049f138166ad6ca2e1c8edd2317a71f5b21b9fe.tar.xz
linux-dev-1049f138166ad6ca2e1c8edd2317a71f5b21b9fe.zip
IB/mlx4: Take source mac from AH instead from the port
In commit dbf727de7440 ("IB/core: Use GID table in AH creation and dmac resolution") we copy source mac to mlx4_ah from the attributes of gid at ib_ah_attr.grh.sgid_index. Now we can use it. Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to '')
-rw-r--r--drivers/infiniband/hw/mlx4/qp.c24
1 files changed, 2 insertions, 22 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 8d280594e24b..89f921f786b3 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -32,6 +32,7 @@
*/
#include <linux/log2.h>
+#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
@@ -2253,16 +2254,6 @@ static int build_sriov_qp0_header(struct mlx4_ib_sqp *sqp,
return 0;
}
-static void mlx4_u64_to_smac(u8 *dst_mac, u64 src_mac)
-{
- int i;
-
- for (i = ETH_ALEN; i; i--) {
- dst_mac[i - 1] = src_mac & 0xff;
- src_mac >>= 8;
- }
-}
-
static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_ud_wr *wr,
void *wqe, unsigned *mlx_seg_len)
{
@@ -2384,27 +2375,16 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_ud_wr *wr,
if (is_eth) {
struct in6_addr in6;
-
u16 pcp = (be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 29) << 13;
mlx->sched_prio = cpu_to_be16(pcp);
+ ether_addr_copy(sqp->ud_header.eth.smac_h, ah->av.eth.s_mac);
memcpy(sqp->ud_header.eth.dmac_h, ah->av.eth.mac, 6);
- /* FIXME: cache smac value? */
memcpy(&ctrl->srcrb_flags16[0], ah->av.eth.mac, 2);
memcpy(&ctrl->imm, ah->av.eth.mac + 2, 4);
memcpy(&in6, sgid.raw, sizeof(in6));
- if (!mlx4_is_mfunc(to_mdev(ib_dev)->dev)) {
- u64 mac = atomic64_read(&to_mdev(ib_dev)->iboe.mac[sqp->qp.port - 1]);
- u8 smac[ETH_ALEN];
-
- mlx4_u64_to_smac(smac, mac);
- memcpy(sqp->ud_header.eth.smac_h, smac, ETH_ALEN);
- } else {
- /* use the src mac of the tunnel */
- memcpy(sqp->ud_header.eth.smac_h, ah->av.eth.s_mac, ETH_ALEN);
- }
if (!memcmp(sqp->ud_header.eth.smac_h, sqp->ud_header.eth.dmac_h, 6))
mlx->flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK);