mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

net: stmmac: est: Per Tx-queue error count for HLBF 

Keep per Tx-queue error count on Head-Of-Line Blocking due to frame
size(HLBF) error. The MAC raises HLBF error on one or more queues
when none of the time Intervals of open-gates in the GCL is greater
than or equal to the duration needed for frame transmission and by
default drops those packets that causes HLBF error. EST_FRM_SZ_ERR
register provides the One Hot encoded Queue numbers that have the
Frame Size related error.

Signed-off-by: Rohan G Thomas <rohan.g.thomas@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rohan G Thomas 2024-01-27 12:04:42 +08:00 committed by David S. Miller
parent c5c3e1bfc9
commit fd5a6a7131
2 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/stmicro/stmmac/common.h
View File

@ -203,6 +203,7 @@ struct stmmac_extra_stats {
unsigned long mtl_est_btre;
unsigned long mtl_est_btrlm;
unsigned long max_sdu_txq_drop[MTL_MAX_TX_QUEUES];
unsigned long mtl_est_txq_hlbf[MTL_MAX_TX_QUEUES];
/* per queue statistics */
struct stmmac_txq_stats txq_stats[MTL_MAX_TX_QUEUES];
struct stmmac_rxq_stats rxq_stats[MTL_MAX_RX_QUEUES];

6
drivers/net/ethernet/stmicro/stmmac/stmmac_est.c
View File

@ -81,6 +81,7 @@ static void est_irq_status(struct stmmac_priv *priv, struct net_device *dev,
u32 status, value, feqn, hbfq, hbfs, btrl, btrl_max;
void __iomem *est_addr = priv->estaddr;
u32 txqcnt_mask = BIT(txqcnt) - 1;
int i;
status = readl(est_addr + EST_STATUS);
@ -125,6 +126,11 @@ static void est_irq_status(struct stmmac_priv *priv, struct net_device *dev,
x->mtl_est_hlbf++;
for (i = 0; i < txqcnt; i++) {
if (feqn & BIT(i))
x->mtl_est_txq_hlbf[i]++;
}
/* Clear Interrupt */
writel(feqn, est_addr + EST_FRM_SZ_ERR);