RDMA/mana_ib: create EQs for RNIC CQs

Create EQs within mana_ib device. Such EQs are required
for creation of RNIC CQs.

Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com>
Link: https://lore.kernel.org/r/1714137160-5222-2-git-send-email-kotaranov@linux.microsoft.com
Reviewed-by: Long Li <longli@microsoft.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index f5401471bffe2fc6f9ffc0b73cf2e494079f77ae..546d059470e5f6035fbecc3fbb7ac5435f807719 100644 (file)
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -658,7 +658,7 @@ int mana_ib_create_eqs(struct mana_ib_dev *mdev)
 {
        struct gdma_context *gc = mdev_to_gc(mdev);
        struct gdma_queue_spec spec = {};
-       int err;
+       int err, i;
 
        spec.type = GDMA_EQ;
        spec.monitor_avl_buf = false;
@@ -672,12 +672,42 @@ int mana_ib_create_eqs(struct mana_ib_dev *mdev)
        if (err)
                return err;
 
+       mdev->eqs = kcalloc(mdev->ib_dev.num_comp_vectors, sizeof(struct gdma_queue *),
+                           GFP_KERNEL);
+       if (!mdev->eqs) {
+               err = -ENOMEM;
+               goto destroy_fatal_eq;
+       }
+
+       for (i = 0; i < mdev->ib_dev.num_comp_vectors; i++) {
+               spec.eq.msix_index = (i + 1) % gc->num_msix_usable;
+               err = mana_gd_create_mana_eq(mdev->gdma_dev, &spec, &mdev->eqs[i]);
+               if (err)
+                       goto destroy_eqs;
+       }
+
        return 0;
+
+destroy_eqs:
+       while (i-- > 0)
+               mana_gd_destroy_queue(gc, mdev->eqs[i]);
+       kfree(mdev->eqs);
+destroy_fatal_eq:
+       mana_gd_destroy_queue(gc, mdev->fatal_err_eq);
+       return err;
 }
 
 void mana_ib_destroy_eqs(struct mana_ib_dev *mdev)
 {
-       mana_gd_destroy_queue(mdev_to_gc(mdev), mdev->fatal_err_eq);
+       struct gdma_context *gc = mdev_to_gc(mdev);
+       int i;
+
+       mana_gd_destroy_queue(gc, mdev->fatal_err_eq);
+
+       for (i = 0; i < mdev->ib_dev.num_comp_vectors; i++)
+               mana_gd_destroy_queue(gc, mdev->eqs[i]);
+
+       kfree(mdev->eqs);
 }
 
 int mana_ib_gd_create_rnic_adapter(struct mana_ib_dev *mdev)

diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index 4c1240da0c5fc58756b180485d0d01f2c105f937..bfcf6dfd221ef4fbfd98977b160eeefc0c2ed916 100644 (file)
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -56,6 +56,7 @@ struct mana_ib_dev {
        struct gdma_dev *gdma_dev;
        mana_handle_t adapter_handle;
        struct gdma_queue *fatal_err_eq;
+       struct gdma_queue **eqs;
        struct mana_ib_adapter_caps adapter_caps;
 };