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authorSelvin Xavier <selvin.xavier@broadcom.com>2023-12-07 13:47:38 +0300
committerLeon Romanovsky <leon@kernel.org>2023-12-11 10:56:28 +0300
commit6027c20dad1ad1da45877151d8b75dc51a928ccd (patch)
tree97d98f80986a046cc093d00ba6b1b1146b9417f4 /drivers/infiniband
parent880a5dd1880a296575e92dec9816a7f35a7011d1 (diff)
downloadlinux-6027c20dad1ad1da45877151d8b75dc51a928ccd.tar.xz
RDMA/bnxt_re: Get the toggle bits from CQ completions
Get the toggle bits from CQ completions. For older adapters these values are 0. Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Link: https://lore.kernel.org/r/1701946060-13931-5-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_fp.c6
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_fp.h1
-rw-r--r--drivers/infiniband/hw/bnxt_re/qplib_res.h1
3 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index 1b7e9506b457..177c6c185f0c 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -330,6 +330,9 @@ static void bnxt_qplib_service_nq(struct tasklet_struct *t)
cq = (struct bnxt_qplib_cq *)(unsigned long)q_handle;
if (!cq)
break;
+ cq->toggle = (le16_to_cpu(nqe->info10_type) &
+ NQ_CN_TOGGLE_MASK) >> NQ_CN_TOGGLE_SFT;
+ cq->dbinfo.toggle = cq->toggle;
bnxt_qplib_armen_db(&cq->dbinfo,
DBC_DBC_TYPE_CQ_ARMENA);
spin_lock_bh(&cq->compl_lock);
@@ -2124,6 +2127,8 @@ int bnxt_qplib_create_cq(struct bnxt_qplib_res *res, struct bnxt_qplib_cq *cq)
cq->dbinfo.xid = cq->id;
cq->dbinfo.db = cq->dpi->dbr;
cq->dbinfo.priv_db = res->dpi_tbl.priv_db;
+ cq->dbinfo.flags = 0;
+ cq->dbinfo.toggle = 0;
bnxt_qplib_armen_db(&cq->dbinfo, DBC_DBC_TYPE_CQ_ARMENA);
@@ -3018,6 +3023,7 @@ exit:
void bnxt_qplib_req_notify_cq(struct bnxt_qplib_cq *cq, u32 arm_type)
{
+ cq->dbinfo.toggle = cq->toggle;
if (arm_type)
bnxt_qplib_ring_db(&cq->dbinfo, arm_type);
/* Using cq->arm_state variable to track whether to issue cq handler */
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index 23c27cb42978..8a6bea201b29 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -418,6 +418,7 @@ struct bnxt_qplib_cq {
bool resize_in_progress;
struct bnxt_qplib_sg_info sg_info;
u64 cq_handle;
+ u8 toggle;
#define CQ_RESIZE_WAIT_TIME_MS 500
unsigned long flags;
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_res.h b/drivers/infiniband/hw/bnxt_re/qplib_res.h
index 397846bc8712..7e6d9074f900 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_res.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_res.h
@@ -190,6 +190,7 @@ struct bnxt_qplib_db_info {
u32 xid;
u32 max_slot;
u32 flags;
+ u8 toggle;
};
enum bnxt_qplib_db_info_flags_mask {