summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c25
-rw-r--r--drivers/net/ethernet/broadcom/tg3.h1
2 files changed, 23 insertions, 3 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index b0657466041d..7b71387cf93c 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -89,10 +89,10 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
#define DRV_MODULE_NAME "tg3"
#define TG3_MAJ_NUM 3
-#define TG3_MIN_NUM 122
+#define TG3_MIN_NUM 123
#define DRV_MODULE_VERSION \
__stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM)
-#define DRV_MODULE_RELDATE "December 7, 2011"
+#define DRV_MODULE_RELDATE "March 21, 2012"
#define RESET_KIND_SHUTDOWN 0
#define RESET_KIND_INIT 1
@@ -5953,8 +5953,10 @@ next_pkt_nopost:
tpr->rx_std_prod_idx = std_prod_idx & tp->rx_std_ring_mask;
tpr->rx_jmb_prod_idx = jmb_prod_idx & tp->rx_jmb_ring_mask;
- if (tnapi != &tp->napi[1])
+ if (tnapi != &tp->napi[1]) {
+ tp->rx_refill = true;
napi_schedule(&tp->napi[1].napi);
+ }
}
return received;
@@ -6134,6 +6136,7 @@ static int tg3_poll_work(struct tg3_napi *tnapi, int work_done, int budget)
u32 std_prod_idx = dpr->rx_std_prod_idx;
u32 jmb_prod_idx = dpr->rx_jmb_prod_idx;
+ tp->rx_refill = false;
for (i = 1; i < tp->irq_cnt; i++)
err |= tg3_rx_prodring_xfer(tp, dpr,
&tp->napi[i].prodring);
@@ -6197,9 +6200,25 @@ static int tg3_poll_msix(struct napi_struct *napi, int budget)
/* check for RX/TX work to do */
if (likely(sblk->idx[0].tx_consumer == tnapi->tx_cons &&
*(tnapi->rx_rcb_prod_idx) == tnapi->rx_rcb_ptr)) {
+
+ /* This test here is not race free, but will reduce
+ * the number of interrupts by looping again.
+ */
+ if (tnapi == &tp->napi[1] && tp->rx_refill)
+ continue;
+
napi_complete(napi);
/* Reenable interrupts. */
tw32_mailbox(tnapi->int_mbox, tnapi->last_tag << 24);
+
+ /* This test here is synchronized by napi_schedule()
+ * and napi_complete() to close the race condition.
+ */
+ if (unlikely(tnapi == &tp->napi[1] && tp->rx_refill)) {
+ tw32(HOSTCC_MODE, tp->coalesce_mode |
+ HOSTCC_MODE_ENABLE |
+ tnapi->coal_now);
+ }
mmiowb();
break;
}
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 66bcfca55261..93865f899a4f 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -3007,6 +3007,7 @@ struct tg3 {
u32 rx_std_max_post;
u32 rx_offset;
u32 rx_pkt_map_sz;
+ bool rx_refill;
/* begin "everything else" cacheline(s) section */
OpenPOWER on IntegriCloud