diff options
| author | Devesh Sharma <devesh.sharma@broadcom.com> | 2020-02-15 12:11:04 -0500 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-02-21 20:21:44 -0400 |
| commit | 6f53196bc5e7fd3c05337f24977cacb08e0f9753 (patch) | |
| tree | 95ce3ba8e84332723f2e76ebfe7fd27ab301f3d2 /drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | |
| parent | 9555352bacfdfc68a972d5bf8a08849183b9e607 (diff) | |
| download | linux-6f53196bc5e7fd3c05337f24977cacb08e0f9753.tar.bz2 | |
RDMA/bnxt_re: Refactor doorbell management functions
Moving all the fast path doorbell functions at one place under
qplib_res.h. To pass doorbell record information a new structure
bnxt_qplib_db_info has been introduced. Every roce object holds an
instance of this structure and doorbell information is initialized during
resource creation.
When DB is rung only the current queue index is read from hardware ring
and rest of the data is taken from pre-initialized dbinfo structure.
Link: https://lore.kernel.org/r/1581786665-23705-8-git-send-email-devesh.sharma@broadcom.com
Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/bnxt_re/qplib_rcfw.c')
| -rw-r--r-- | drivers/infiniband/hw/bnxt_re/qplib_rcfw.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c index 119113ecfb64..b0b050e5cd12 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c @@ -379,7 +379,6 @@ static int bnxt_qplib_process_qp_event(struct bnxt_qplib_rcfw *rcfw, static void bnxt_qplib_service_creq(unsigned long data) { struct bnxt_qplib_rcfw *rcfw = (struct bnxt_qplib_rcfw *)data; - bool gen_p5 = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx); struct bnxt_qplib_creq_ctx *creq = &rcfw->creq; u32 type, budget = CREQ_ENTRY_POLL_BUDGET; struct bnxt_qplib_hwq *hwq = &creq->hwq; @@ -429,9 +428,8 @@ static void bnxt_qplib_service_creq(unsigned long data) if (hwq->cons != raw_cons) { hwq->cons = raw_cons; - bnxt_qplib_ring_creq_db_rearm(creq->creq_db.db, - raw_cons, hwq->max_elements, - creq->ring_id, gen_p5); + bnxt_qplib_ring_nq_db(&creq->creq_db.dbinfo, + rcfw->res->cctx, true); } spin_unlock_irqrestore(&hwq->lock, flags); } @@ -660,15 +658,12 @@ fail: void bnxt_qplib_rcfw_stop_irq(struct bnxt_qplib_rcfw *rcfw, bool kill) { - bool gen_p5 = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx); struct bnxt_qplib_creq_ctx *creq; creq = &rcfw->creq; tasklet_disable(&creq->creq_tasklet); /* Mask h/w interrupts */ - bnxt_qplib_ring_creq_db(creq->creq_db.db, creq->hwq.cons, - creq->hwq.max_elements, creq->ring_id, - gen_p5); + bnxt_qplib_ring_nq_db(&creq->creq_db.dbinfo, rcfw->res->cctx, false); /* Sync with last running IRQ-handler */ synchronize_irq(creq->msix_vec); if (kill) @@ -708,7 +703,6 @@ void bnxt_qplib_disable_rcfw_channel(struct bnxt_qplib_rcfw *rcfw) int bnxt_qplib_rcfw_start_irq(struct bnxt_qplib_rcfw *rcfw, int msix_vector, bool need_init) { - bool gen_p5 = bnxt_qplib_is_chip_gen_p5(rcfw->res->cctx); struct bnxt_qplib_creq_ctx *creq; int rc; @@ -728,9 +722,8 @@ int bnxt_qplib_rcfw_start_irq(struct bnxt_qplib_rcfw *rcfw, int msix_vector, if (rc) return rc; creq->requested = true; - bnxt_qplib_ring_creq_db_rearm(creq->creq_db.db, - creq->hwq.cons, creq->hwq.max_elements, - creq->ring_id, gen_p5); + + bnxt_qplib_ring_nq_db(&creq->creq_db.dbinfo, rcfw->res->cctx, true); return 0; } @@ -799,7 +792,9 @@ static int bnxt_qplib_map_creq_db(struct bnxt_qplib_rcfw *rcfw, u32 reg_offt) creq_db->reg.bar_id); return -ENOMEM; } - creq_db->db = creq_db->reg.bar_reg; + creq_db->dbinfo.db = creq_db->reg.bar_reg; + creq_db->dbinfo.hwq = &rcfw->creq.hwq; + creq_db->dbinfo.xid = rcfw->creq.ring_id; return 0; } |