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| author |   Karsten Graul <kgraul@linux.ibm.com> | 2021-10-16 11:37:49 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-10-16 14:58:13 +0100 |
| commit | 8799e310fb3f15759824a78b6b93d7e6d5def067 (patch) | |
| tree | f618d711afc965a0b1d5fb2898bf421f42cc2db8 /net/smc/smc_ib.c | |
| parent | net/smc: retrieve v2 gid from IB device (diff) | |
| download | linux-dev-8799e310fb3f15759824a78b6b93d7e6d5def067.tar.xz linux-dev-8799e310fb3f15759824a78b6b93d7e6d5def067.zip | |
net/smc: add v2 support to the work request layer
In the work request layer define one large v2 buffer for each link group
that is used to transmit and receive large LLC control messages.
Add the completion queue handling for this buffer.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.c')
| -rw-r--r-- | net/smc/smc_ib.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c index d15bacbd73e0..32f9d2fdc474 100644 --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -601,6 +601,7 @@ void smc_ib_destroy_queue_pair(struct smc_link *lnk) /* create a queue pair within the protection domain for a link */ int smc_ib_create_queue_pair(struct smc_link *lnk) { + int sges_per_buf = (lnk->lgr->smc_version == SMC_V2) ? 2 : 1; struct ib_qp_init_attr qp_attr = { .event_handler = smc_ib_qp_event_handler, .qp_context = lnk, @@ -614,7 +615,7 @@ int smc_ib_create_queue_pair(struct smc_link *lnk) .max_send_wr = SMC_WR_BUF_CNT * 3, .max_recv_wr = SMC_WR_BUF_CNT * 3, .max_send_sge = SMC_IB_MAX_SEND_SGE, - .max_recv_sge = 1, + .max_recv_sge = sges_per_buf, }, .sq_sig_type = IB_SIGNAL_REQ_WR, .qp_type = IB_QPT_RC, |