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IB/mlx5: Collect signature error completion

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This commit takes care of the generated signature error CQE generated
by the HW (if happened).  The underlying mlx5 driver will handle
signature error completions and will mark the relevant memory region
as dirty.

Once the consumer gets the completion for the transaction, it must
check for signature errors on signature memory region using a new
lightweight verb ib_check_mr_status().

In case the user doesn't check for signature error (i.e. doesn't call
ib_check_mr_status() with status check IB_MR_CHECK_SIG_STATUS), the
memory region cannot be used for another signature operation
(REG_SIG_MR work request will fail).

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sagi Grimberg 2014-02-23 14:19:12 +02:00 • committed by Roland Dreier
parent e6631814fb
commit d5436ba010
9 changed files with 150 additions and 2 deletions
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5
include/linux/mlx5/qp.h
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@ -506,6 +506,11 @@ static inline struct mlx5_core_qp *__mlx5_qp_lookup(struct mlx5_core_dev *dev, u
return radix_tree_lookup(&dev->priv.qp_table.tree, qpn);
}
static inline struct mlx5_core_mr *__mlx5_mr_lookup(struct mlx5_core_dev *dev, u32 key)
{
return radix_tree_lookup(&dev->priv.mr_table.tree, key);
}
int mlx5_core_create_qp(struct mlx5_core_dev *dev,
struct mlx5_core_qp *qp,
struct mlx5_create_qp_mbox_in *in,