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net/mlx5: Update log_max_qp value to FW max capability

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log_max_qp in driver's default profile #2 was set to 18, but FW actually
supports 17 at the most - a situation that led to the concerning print
when the driver is loaded:
"log_max_qp value in current profile is 18, changing to HCA capabaility
limit (17)"

The expected behavior from mlx5_profile #2 is to match the maximum FW
capability in regards to log_max_qp. Thus, log_max_qp in profile #2 is
initialized to a defined static value (0xff) - which basically means that
when loading this profile, log_max_qp value  will be what the currently
installed FW supports at most.

Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Maher Sanalla 2022-01-05 14:50:11 +02:00 committed by Saeed Mahameed
parent 061f5b2358
commit f79a609ea6
1 changed files with 6 additions and 2 deletions
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8
drivers/net/ethernet/mellanox/mlx5/core/main.c
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@ -98,6 +98,8 @@ enum {
MLX5_ATOMIC_REQ_MODE_HOST_ENDIANNESS = 0x1,
};
#define LOG_MAX_SUPPORTED_QPS 0xff
static struct mlx5_profile profile[] = {
[0] = {
.mask = 0,
@ -109,7 +111,7 @@ static struct mlx5_profile profile[] = {
[2] = {
.mask = MLX5_PROF_MASK_QP_SIZE |
MLX5_PROF_MASK_MR_CACHE,
.log_max_qp = 18,
.log_max_qp = LOG_MAX_SUPPORTED_QPS,
.mr_cache[0] = {
.size = 500,
.limit = 250
@ -523,7 +525,9 @@ static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx)
to_fw_pkey_sz(dev, 128));
/* Check log_max_qp from HCA caps to set in current profile */
if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
if (prof->log_max_qp == LOG_MAX_SUPPORTED_QPS) {
prof->log_max_qp = MLX5_CAP_GEN_MAX(dev, log_max_qp);
} else if (MLX5_CAP_GEN_MAX(dev, log_max_qp) < prof->log_max_qp) {
mlx5_core_warn(dev, "log_max_qp value in current profile is %d, changing it to HCA capability limit (%d)\n",
prof->log_max_qp,
MLX5_CAP_GEN_MAX(dev, log_max_qp));