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i40iw: Remove limit on re-posting AEQ entries to HW 

Currently, if the number of processed Asynchronous Event Queue (AEQ)
entries exceeds 255, they are not returned to HW for re-use. During
scale-up, the unreturned AEQ entries can grow to the max AEQ size and
cause the HW to report an AEQ overflow.

Remove the check which limits the number of processed AEQ entries returned
to HW.

Fixes: 86dbcd0f12 ("RDMA/i40iw: add file to handle cqp calls")
Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Sindhu Devale 2018-01-11 18:10:52 -06:00 committed by Jason Gunthorpe
parent 6376e926af
commit 72b30e986d
2 changed files with 0 additions and 3 deletions
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2
drivers/infiniband/hw/i40iw/i40iw_ctrl.c
View File

@ -1893,8 +1893,6 @@ static enum i40iw_status_code i40iw_sc_get_next_aeqe(struct i40iw_sc_aeq *aeq,
static enum i40iw_status_code i40iw_sc_repost_aeq_entries(struct i40iw_sc_dev *dev,
u32 count)
{
if (count > I40IW_MAX_AEQ_ALLOCATE_COUNT)
return I40IW_ERR_INVALID_SIZE;
if (dev->is_pf)
i40iw_wr32(dev->hw, I40E_PFPE_AEQALLOC, count);

1
drivers/infiniband/hw/i40iw/i40iw_user.h
View File

@ -59,7 +59,6 @@ enum i40iw_device_capabilities_const {
I40IW_MAX_CEQ_ENTRIES = 131071,
I40IW_MIN_CQ_SIZE = 1,
I40IW_MAX_CQ_SIZE = 1048575,
I40IW_MAX_AEQ_ALLOCATE_COUNT = 255,
I40IW_DB_ID_ZERO = 0,
I40IW_MAX_WQ_FRAGMENT_COUNT = 3,
I40IW_MAX_SGE_RD = 1,