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authorDevesh Sharma <Devesh.Sharma@Emulex.Com>2014-02-04 11:56:55 +0530
committerRoland Dreier <roland@purestorage.com>2014-04-03 08:29:36 -0700
commit2df84fa87f4d00299031b1335748c54176edfe87 (patch)
tree91479c415baa267489feb87b1b430158f67ae68c /drivers/infiniband
parentea61762679cd4d409dcaa6f502f190f4c8156d09 (diff)
RDMA/ocrdma: SQ and RQ doorbell offset clean up
Introducing new macros to define SQ and RQ doorbell offset. Signed-off-by: Devesh Sharma <devesh.sharma@emulex.com> Signed-off-by: Selvin Xavier <selvin.xavier@emulex.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma.h7
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_sli.h5
-rw-r--r--drivers/infiniband/hw/ocrdma/ocrdma_verbs.c23
3 files changed, 11 insertions, 24 deletions
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h
index 61f508e74823..1b51e67a26d7 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -386,13 +386,6 @@ static inline struct ocrdma_srq *get_ocrdma_srq(struct ib_srq *ibsrq)
return container_of(ibsrq, struct ocrdma_srq, ibsrq);
}
-
-static inline int ocrdma_get_num_posted_shift(struct ocrdma_qp *qp)
-{
- return ((qp->dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY &&
- qp->id < 128) ? 24 : 16);
-}
-
static inline int is_cqe_valid(struct ocrdma_cq *cq, struct ocrdma_cqe *cqe)
{
int cqe_valid;
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
index 60d5ac23ea80..e71685a7ffae 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h
@@ -103,7 +103,10 @@ enum {
OCRDMA_DB_GEN2_SRQ_OFFSET = OCRDMA_DB_GEN2_RQ_OFFSET,
OCRDMA_DB_CQ_OFFSET = 0x120,
OCRDMA_DB_EQ_OFFSET = OCRDMA_DB_CQ_OFFSET,
- OCRDMA_DB_MQ_OFFSET = 0x140
+ OCRDMA_DB_MQ_OFFSET = 0x140,
+
+ OCRDMA_DB_SQ_SHIFT = 16,
+ OCRDMA_DB_RQ_SHIFT = 24
};
#define OCRDMA_DB_CQ_RING_ID_MASK 0x3FF /* bits 0 - 9 */
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 7d59ed340991..be75d2b1ea9f 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -1127,15 +1127,9 @@ static int ocrdma_copy_qp_uresp(struct ocrdma_qp *qp,
}
uresp.db_page_addr = usr_db;
uresp.db_page_size = dev->nic_info.db_page_size;
- if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) {
- uresp.db_sq_offset = OCRDMA_DB_GEN2_SQ_OFFSET;
- uresp.db_rq_offset = OCRDMA_DB_GEN2_RQ_OFFSET;
- uresp.db_shift = 24;
- } else {
- uresp.db_sq_offset = OCRDMA_DB_SQ_OFFSET;
- uresp.db_rq_offset = OCRDMA_DB_RQ_OFFSET;
- uresp.db_shift = 16;
- }
+ uresp.db_sq_offset = OCRDMA_DB_GEN2_SQ_OFFSET;
+ uresp.db_rq_offset = OCRDMA_DB_GEN2_RQ_OFFSET;
+ uresp.db_shift = OCRDMA_DB_RQ_SHIFT;
if (qp->dpp_enabled) {
uresp.dpp_credit = dpp_credit_lmt;
@@ -1308,7 +1302,7 @@ static void ocrdma_flush_rq_db(struct ocrdma_qp *qp)
{
if (qp->db_cache) {
u32 val = qp->rq.dbid | (qp->db_cache <<
- ocrdma_get_num_posted_shift(qp));
+ OCRDMA_DB_RQ_SHIFT);
iowrite32(val, qp->rq_db);
qp->db_cache = 0;
}
@@ -2052,7 +2046,7 @@ static int ocrdma_build_fr(struct ocrdma_qp *qp, struct ocrdma_hdr_wqe *hdr,
static void ocrdma_ring_sq_db(struct ocrdma_qp *qp)
{
- u32 val = qp->sq.dbid | (1 << 16);
+ u32 val = qp->sq.dbid | (1 << OCRDMA_DB_SQ_SHIFT);
iowrite32(val, qp->sq_db);
}
@@ -2157,12 +2151,9 @@ int ocrdma_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
static void ocrdma_ring_rq_db(struct ocrdma_qp *qp)
{
- u32 val = qp->rq.dbid | (1 << ocrdma_get_num_posted_shift(qp));
+ u32 val = qp->rq.dbid | (1 << OCRDMA_DB_RQ_SHIFT);
- if (qp->state != OCRDMA_QPS_INIT)
- iowrite32(val, qp->rq_db);
- else
- qp->db_cache++;
+ iowrite32(val, qp->rq_db);
}
static void ocrdma_build_rqe(struct ocrdma_hdr_wqe *rqe, struct ib_recv_wr *wr,