diff options
| author | Or Gerlitz <ogerlitz@mellanox.com> | 2012-01-11 19:03:51 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-03-08 12:34:27 -0800 |
| commit | d927d505c59a0c7353343174e6225c43c61fba6d (patch) | |
| tree | 8fe928291acb9c6975f7c03514566933edeef7d5 /drivers/infiniband/hw | |
| parent | 3eae7c9f97415ac1f5ab5db4eeb03cde689eb427 (diff) | |
IB: Change CQE "csum_ok" field to a bit flag
Use a bit in wc_flags rather then a whole integer to hold the
"checksum OK" flag. By itself, this change doesn't reduce the size of
struct ib_wc on 64bit machines -- it stays on 56 bytes because of
padding. However, it will allow to add more fields in the future
without enlarging the struct. Also, it will let us have a unified
approach with future libibverbs checksum offload reporting, because a
bit flag doesn't break the library ABI.
This patch was suggested during conversation with Liran Liss
<liranl@mellanox.com>.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/cq.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_cq.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_rc.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_uc.c | 1 |
4 files changed, 4 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index 5ecf38d9726..09eb1d19e72 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -720,7 +720,8 @@ repoll: wc->dlid_path_bits = (g_mlpath_rqpn >> 24) & 0x7f; wc->wc_flags |= g_mlpath_rqpn & 0x80000000 ? IB_WC_GRH : 0; wc->pkey_index = be32_to_cpu(cqe->immed_rss_invalid) & 0x7f; - wc->csum_ok = mlx4_ib_ipoib_csum_ok(cqe->status, cqe->checksum); + wc->wc_flags |= mlx4_ib_ipoib_csum_ok(cqe->status, + cqe->checksum) ? IB_WC_IP_CSUM_OK : 0; if (rdma_port_get_link_layer(wc->qp->device, (*cur_qp)->port) == IB_LINK_LAYER_ETHERNET) wc->sl = be16_to_cpu(cqe->sl_vid) >> 13; diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c index 53157b86a1b..40ba8333815 100644 --- a/drivers/infiniband/hw/mthca/mthca_cq.c +++ b/drivers/infiniband/hw/mthca/mthca_cq.c @@ -643,7 +643,8 @@ static inline int mthca_poll_one(struct mthca_dev *dev, entry->wc_flags |= cqe->g_mlpath & 0x80 ? IB_WC_GRH : 0; checksum = (be32_to_cpu(cqe->rqpn) >> 24) | ((be32_to_cpu(cqe->my_ee) >> 16) & 0xff00); - entry->csum_ok = (cqe->sl_ipok & 1 && checksum == 0xffff); + entry->wc_flags |= (cqe->sl_ipok & 1 && checksum == 0xffff) ? + IB_WC_IP_CSUM_OK : 0; } entry->status = IB_WC_SUCCESS; diff --git a/drivers/infiniband/hw/qib/qib_rc.c b/drivers/infiniband/hw/qib/qib_rc.c index 894afac26f3..765b4cbaa02 100644 --- a/drivers/infiniband/hw/qib/qib_rc.c +++ b/drivers/infiniband/hw/qib/qib_rc.c @@ -2048,7 +2048,6 @@ send_last: wc.pkey_index = 0; wc.dlid_path_bits = 0; wc.port_num = 0; - wc.csum_ok = 0; /* Signal completion event if the solicited bit is set. */ qib_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, (ohdr->bth[0] & diff --git a/drivers/infiniband/hw/qib/qib_uc.c b/drivers/infiniband/hw/qib/qib_uc.c index 847e7afdfd9..7ce2ac2ed21 100644 --- a/drivers/infiniband/hw/qib/qib_uc.c +++ b/drivers/infiniband/hw/qib/qib_uc.c @@ -422,7 +422,6 @@ last_imm: wc.pkey_index = 0; wc.dlid_path_bits = 0; wc.port_num = 0; - wc.csum_ok = 0; /* Signal completion event if the solicited bit is set. */ qib_cq_enter(to_icq(qp->ibqp.recv_cq), &wc, (ohdr->bth[0] & |