diff options
| author | Gal Pressman <galpress@amazon.com> | 2020-07-22 17:03:09 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-29 15:23:39 +0300 |
| commit | 556c811f24b30cc883733a2eaf9e939817589231 (patch) | |
| tree | 23a6239e9d1a29baca816d4b970383c6e5a1906c /drivers/infiniband/hw/efa/efa_com_cmd.c | |
| parent | c804af2c1d3152c0cf877eeb50d60c2d49ac0cf0 (diff) | |
| download | linux-556c811f24b30cc883733a2eaf9e939817589231.tar.xz | |
RDMA/efa: Expose maximum TX doorbell batch
The device reports the maximum number of bytes to be written before
ringing the doorbell (zero means unlimited).
This patch queries the max batch size and reports it back to the userspace
library.
Link: https://lore.kernel.org/r/20200722140312.3651-2-galpress@amazon.com
Reviewed-by: Daniel Kranzdorf <dkkranzd@amazon.com>
Reviewed-by: Firas JahJah <firasj@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/efa/efa_com_cmd.c')
| -rw-r--r-- | drivers/infiniband/hw/efa/efa_com_cmd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/efa/efa_com_cmd.c b/drivers/infiniband/hw/efa/efa_com_cmd.c index fabd8df2e78f..53cfde5c43d8 100644 --- a/drivers/infiniband/hw/efa/efa_com_cmd.c +++ b/drivers/infiniband/hw/efa/efa_com_cmd.c @@ -480,6 +480,7 @@ int efa_com_get_device_attr(struct efa_com_dev *edev, result->max_llq_size = resp.u.queue_attr.max_llq_size; result->sub_cqs_per_cq = resp.u.queue_attr.sub_cqs_per_cq; result->max_wr_rdma_sge = resp.u.queue_attr.max_wr_rdma_sges; + result->max_tx_batch = resp.u.queue_attr.max_tx_batch; err = efa_com_get_feature(edev, &resp, EFA_ADMIN_NETWORK_ATTR); if (err) { |