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net/mlx5: DR, Use the right size when writing partial STE into HW

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In these cases we need to update only the ctrl area of the STE.
So it is better to write only the control 32B and avoid copying
the unneeded reduced 48B (control 32B + tag 16B).

Signed-off-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Yevgeny Kliteynik 2020-09-22 04:23:58 +03:00 committed by Saeed Mahameed
parent c349b4137c
commit f06d496985
2 changed files with 9 additions and 5 deletions
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12
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c
View File

@ -30,7 +30,7 @@ static int dr_rule_append_to_miss_list(struct mlx5dr_ste_ctx *ste_ctx,
mlx5dr_ste_get_icm_addr(new_last_ste));
list_add_tail(&new_last_ste->miss_list_node, miss_list);
mlx5dr_send_fill_and_append_ste_send_info(last_ste, DR_STE_SIZE_REDUCED,
mlx5dr_send_fill_and_append_ste_send_info(last_ste, DR_STE_SIZE_CTRL,
0, last_ste->hw_ste,
ste_info_last, send_list, true);
@ -110,10 +110,14 @@ dr_rule_handle_one_ste_in_update_list(struct mlx5dr_ste_send_info *ste_info,
ste_info->size, ste_info->offset);
if (ret)
goto out;
/* Copy data to ste, only reduced size, the last 16B (mask)
/* Copy data to ste, only reduced size or control, the last 16B (mask)
* is already written to the hw.
*/
memcpy(ste_info->ste->hw_ste, ste_info->data, DR_STE_SIZE_REDUCED);
if (ste_info->size == DR_STE_SIZE_CTRL)
memcpy(ste_info->ste->hw_ste, ste_info->data, DR_STE_SIZE_CTRL);
else
memcpy(ste_info->ste->hw_ste, ste_info->data, DR_STE_SIZE_REDUCED);
out:
kfree(ste_info);
@ -456,7 +460,7 @@ dr_rule_rehash_htbl(struct mlx5dr_rule *rule,
ste_to_update = cur_htbl->pointing_ste;
}
mlx5dr_send_fill_and_append_ste_send_info(ste_to_update, DR_STE_SIZE_REDUCED,
mlx5dr_send_fill_and_append_ste_send_info(ste_to_update, DR_STE_SIZE_CTRL,
0, ste_to_update->hw_ste, ste_info,
update_list, false);

2
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste.c
View File

@ -264,7 +264,7 @@ static void dr_ste_remove_middle_ste(struct mlx5dr_ste_ctx *ste_ctx,
miss_addr = ste_ctx->get_miss_addr(ste->hw_ste);
ste_ctx->set_miss_addr(prev_ste->hw_ste, miss_addr);
mlx5dr_send_fill_and_append_ste_send_info(prev_ste, DR_STE_SIZE_REDUCED, 0,
mlx5dr_send_fill_and_append_ste_send_info(prev_ste, DR_STE_SIZE_CTRL, 0,
prev_ste->hw_ste, ste_info,
send_ste_list, true /* Copy data*/);