[PATCH rdma-next 10/13] RDMA/mana_ib: implement req_notify_cq
From: Konstantin Taranov <hidden>
Date: 2025-01-20 17:27:33
Also in:
linux-hyperv, linux-rdma, lkml
Subsystem:
hyper-v/azure core and drivers, infiniband subsystem, microsoft mana rdma driver, networking drivers, the rest · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Jason Gunthorpe, Leon Romanovsky, Konstantin Taranov, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Konstantin Taranov <kotaranov@microsoft.com> Arm a CQ when req_notify_cq is called. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Reviewed-by: Shiraz Saleem <redacted> --- drivers/infiniband/hw/mana/cq.c | 12 ++++++++++++ drivers/infiniband/hw/mana/device.c | 1 + drivers/infiniband/hw/mana/mana_ib.h | 2 ++ drivers/net/ethernet/microsoft/mana/gdma_main.c | 1 + 4 files changed, 16 insertions(+)
diff --git a/drivers/infiniband/hw/mana/cq.c b/drivers/infiniband/hw/mana/cq.c
index d26d82d..82f1462 100644
--- a/drivers/infiniband/hw/mana/cq.c
+++ b/drivers/infiniband/hw/mana/cq.c@@ -168,3 +168,15 @@ void mana_ib_remove_cq_cb(struct mana_ib_dev *mdev, struct mana_ib_cq *cq) kfree(gc->cq_table[cq->queue.id]); gc->cq_table[cq->queue.id] = NULL; } + +int mana_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) +{ + struct mana_ib_cq *cq = container_of(ibcq, struct mana_ib_cq, ibcq); + struct gdma_queue *gdma_cq = cq->queue.kmem; + + if (!gdma_cq) + return -EINVAL; + + mana_gd_ring_cq(gdma_cq, SET_ARM_BIT); + return 0; +}
diff --git a/drivers/infiniband/hw/mana/device.c b/drivers/infiniband/hw/mana/device.c
index 1da86c3..63e12c3 100644
--- a/drivers/infiniband/hw/mana/device.c
+++ b/drivers/infiniband/hw/mana/device.c@@ -47,6 +47,7 @@ static const struct ib_device_ops mana_ib_dev_ops = { .query_pkey = mana_ib_query_pkey, .query_port = mana_ib_query_port, .reg_user_mr = mana_ib_reg_user_mr, + .req_notify_cq = mana_ib_arm_cq, INIT_RDMA_OBJ_SIZE(ib_ah, mana_ib_ah, ibah), INIT_RDMA_OBJ_SIZE(ib_cq, mana_ib_cq, ibcq),
diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index 6265c39..bd34ad6 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h@@ -595,4 +595,6 @@ int mana_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, const struct ib_recv_wr **bad_wr); int mana_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, const struct ib_send_wr **bad_wr); + +int mana_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags); #endif
diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
index 409e4e8..823f7e7 100644
--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
+++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c@@ -344,6 +344,7 @@ void mana_gd_ring_cq(struct gdma_queue *cq, u8 arm_bit) mana_gd_ring_doorbell(gc, cq->gdma_dev->doorbell, cq->type, cq->id, head, arm_bit); } +EXPORT_SYMBOL_NS(mana_gd_ring_cq, NET_MANA); static void mana_gd_process_eqe(struct gdma_queue *eq) {
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2.43.0