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i40iw: pass hw_stats by reference rather than by value 

passing hw_stats by value requires a 280 byte copy so instead
pass it by reference is much more efficient.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Chien Tin Tung <chien.tin.tung@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Colin Ian King 2016-03-28 12:14:46 +01:00 committed by Doug Ledford
parent 6d6c5c1eb3
commit 78c49f83ee
1 changed files with 3 additions and 3 deletions
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6
drivers/infiniband/hw/i40iw/i40iw_virtchnl.c
View File

@ -254,7 +254,7 @@ static void vchnl_pf_send_get_hmc_fcn_resp(struct i40iw_sc_dev *dev,
static void vchnl_pf_send_get_pe_stats_resp(struct i40iw_sc_dev *dev,
u32 vf_id,
struct i40iw_virtchnl_op_buf *vchnl_msg,
struct i40iw_dev_hw_stats hw_stats)
struct i40iw_dev_hw_stats *hw_stats)
{
enum i40iw_status_code ret_code;
u8 resp_buffer[sizeof(struct i40iw_virtchnl_resp_buf) + sizeof(struct i40iw_dev_hw_stats) - 1];
@ -264,7 +264,7 @@ static void vchnl_pf_send_get_pe_stats_resp(struct i40iw_sc_dev *dev,
vchnl_msg_resp->iw_chnl_op_ctx = vchnl_msg->iw_chnl_op_ctx;
vchnl_msg_resp->iw_chnl_buf_len = sizeof(resp_buffer);
vchnl_msg_resp->iw_op_ret_code = I40IW_SUCCESS;
*((struct i40iw_dev_hw_stats *)vchnl_msg_resp->iw_chnl_buf) = hw_stats;
*((struct i40iw_dev_hw_stats *)vchnl_msg_resp->iw_chnl_buf) = *hw_stats;
ret_code = dev->vchnl_if.vchnl_send(dev, vf_id, resp_buffer, sizeof(resp_buffer));
if (ret_code)
i40iw_debug(dev, I40IW_DEBUG_VIRT,
@ -539,7 +539,7 @@ enum i40iw_status_code i40iw_vchnl_recv_pf(struct i40iw_sc_dev *dev,
devstat->ops.iw_hw_stat_read_all(devstat, &devstat->hw_stats);
spin_unlock_irqrestore(&dev->dev_pestat.stats_lock, flags);
vf_dev->msg_count--;
vchnl_pf_send_get_pe_stats_resp(dev, vf_id, vchnl_msg, devstat->hw_stats);
vchnl_pf_send_get_pe_stats_resp(dev, vf_id, vchnl_msg, &devstat->hw_stats);
break;
default:
i40iw_debug(dev, I40IW_DEBUG_VIRT,