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bnxt_en: Refactor bnxt_hwrm_set_coal(). 

Add a function to set all the coalescing parameters.  The function can
be used later to set both rx and tx coalescing parameters.

v2: Fixed function parameters formatting requested by DaveM.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2016-02-26 04:00:02 -05:00 committed by David S. Miller
parent dfb5b894f8
commit bb053f52a5
1 changed files with 17 additions and 9 deletions
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26
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -3521,6 +3521,21 @@ static void bnxt_hwrm_ring_free(struct bnxt *bp, bool close_path)
}
}
static void bnxt_hwrm_set_coal_params(struct bnxt *bp, u32 max_bufs,
u32 buf_tmrs, u16 flags,
struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req)
{
req->flags = cpu_to_le16(flags);
req->num_cmpl_dma_aggr = cpu_to_le16((u16)max_bufs);
req->num_cmpl_dma_aggr_during_int = cpu_to_le16(max_bufs >> 16);
req->cmpl_aggr_dma_tmr = cpu_to_le16((u16)buf_tmrs);
req->cmpl_aggr_dma_tmr_during_int = cpu_to_le16(buf_tmrs >> 16);
/* Minimum time between 2 interrupts set to buf_tmr x 2 */
req->int_lat_tmr_min = cpu_to_le16((u16)buf_tmrs * 2);
req->int_lat_tmr_max = cpu_to_le16((u16)buf_tmrs * 4);
req->num_cmpl_aggr_int = cpu_to_le16((u16)max_bufs * 4);
}
int bnxt_hwrm_set_coal(struct bnxt *bp)
{
int i, rc = 0;
@ -3553,15 +3568,8 @@ int bnxt_hwrm_set_coal(struct bnxt *bp)
if (bp->rx_coal_ticks < 25)
flags |= RING_CMPL_RING_CFG_AGGINT_PARAMS_REQ_FLAGS_RING_IDLE;
req.flags = cpu_to_le16(flags);
req.num_cmpl_dma_aggr = cpu_to_le16(max_buf);
req.num_cmpl_dma_aggr_during_int = cpu_to_le16(max_buf_irq);
req.cmpl_aggr_dma_tmr = cpu_to_le16(buf_tmr);
req.cmpl_aggr_dma_tmr_during_int = cpu_to_le16(buf_tmr_irq);
/* Minimum time between 2 interrupts set to buf_tmr x 2 */
req.int_lat_tmr_min = cpu_to_le16(buf_tmr * 2);
req.int_lat_tmr_max = cpu_to_le16(buf_tmr * 4);
req.num_cmpl_aggr_int = cpu_to_le16(max_buf * 4);
bnxt_hwrm_set_coal_params(bp, max_buf_irq << 16 | max_buf,
buf_tmr_irq << 16 | buf_tmr, flags, &req);
mutex_lock(&bp->hwrm_cmd_lock);
for (i = 0; i < bp->cp_nr_rings; i++) {