From: "Dmitry Kravkov" <dmitry@broadcom.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: "Ariel Elior" <ariele@broadcom.com>,
"Eilon Greenstein" <eilong@broadcom.com>,
"Dmitry Kravkov" <dmitry@broadcom.com>
Subject: [PATCH 8/8] bnx2x: Fix for a host coalescing bug which impared latency.
Date: Tue, 30 Aug 2011 13:08:46 +0300 [thread overview]
Message-ID: <1314698926-24525-9-git-send-email-dmitry@broadcom.com> (raw)
In-Reply-To: <1314698926-24525-1-git-send-email-dmitry@broadcom.com>
From: Ariel Elior <ariele@broadcom.com>
Seperated Rx and Tx coalescing to different state machines.
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
---
drivers/net/bnx2x/bnx2x.h | 25 +++++++++----------------
drivers/net/bnx2x/bnx2x_main.c | 33 +++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+), 16 deletions(-)
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index 2621a1c..e46df53 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -751,24 +751,17 @@ struct bnx2x_fastpath {
#define FP_CSB_FUNC_OFF \
offsetof(struct cstorm_status_block_c, func)
-#define HC_INDEX_TOE_RX_CQ_CONS 0 /* Formerly Ustorm TOE CQ index */
- /* (HC_INDEX_U_TOE_RX_CQ_CONS) */
-#define HC_INDEX_ETH_RX_CQ_CONS 1 /* Formerly Ustorm ETH CQ index */
- /* (HC_INDEX_U_ETH_RX_CQ_CONS) */
-#define HC_INDEX_ETH_RX_BD_CONS 2 /* Formerly Ustorm ETH BD index */
- /* (HC_INDEX_U_ETH_RX_BD_CONS) */
-
-#define HC_INDEX_TOE_TX_CQ_CONS 4 /* Formerly Cstorm TOE CQ index */
- /* (HC_INDEX_C_TOE_TX_CQ_CONS) */
-#define HC_INDEX_ETH_TX_CQ_CONS_COS0 5 /* Formerly Cstorm ETH CQ index */
- /* (HC_INDEX_C_ETH_TX_CQ_CONS) */
-#define HC_INDEX_ETH_TX_CQ_CONS_COS1 6 /* Formerly Cstorm ETH CQ index */
- /* (HC_INDEX_C_ETH_TX_CQ_CONS) */
-#define HC_INDEX_ETH_TX_CQ_CONS_COS2 7 /* Formerly Cstorm ETH CQ index */
- /* (HC_INDEX_C_ETH_TX_CQ_CONS) */
+#define HC_INDEX_ETH_RX_CQ_CONS 1
-#define HC_INDEX_ETH_FIRST_TX_CQ_CONS HC_INDEX_ETH_TX_CQ_CONS_COS0
+#define HC_INDEX_OOO_TX_CQ_CONS 4
+
+#define HC_INDEX_ETH_TX_CQ_CONS_COS0 5
+
+#define HC_INDEX_ETH_TX_CQ_CONS_COS1 6
+#define HC_INDEX_ETH_TX_CQ_CONS_COS2 7
+
+#define HC_INDEX_ETH_FIRST_TX_CQ_CONS HC_INDEX_ETH_TX_CQ_CONS_COS0
#define BNX2X_RX_SB_INDEX \
(&fp->sb_index_values[HC_INDEX_ETH_RX_CQ_CONS])
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 0b68d02..c027e93 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -4828,6 +4828,37 @@ void bnx2x_setup_ndsb_state_machine(struct hc_status_block_sm *hc_sm,
hc_sm->time_to_expire = 0xFFFFFFFF;
}
+
+/* allocates state machine ids. */
+static inline
+void bnx2x_map_sb_state_machines(struct hc_index_data *index_data)
+{
+ /* zero out state machine indices */
+ /* rx indices */
+ index_data[HC_INDEX_ETH_RX_CQ_CONS].flags &= ~HC_INDEX_DATA_SM_ID;
+
+ /* tx indices */
+ index_data[HC_INDEX_OOO_TX_CQ_CONS].flags &= ~HC_INDEX_DATA_SM_ID;
+ index_data[HC_INDEX_ETH_TX_CQ_CONS_COS0].flags &= ~HC_INDEX_DATA_SM_ID;
+ index_data[HC_INDEX_ETH_TX_CQ_CONS_COS1].flags &= ~HC_INDEX_DATA_SM_ID;
+ index_data[HC_INDEX_ETH_TX_CQ_CONS_COS2].flags &= ~HC_INDEX_DATA_SM_ID;
+
+ /* map indices */
+ /* rx indices */
+ index_data[HC_INDEX_ETH_RX_CQ_CONS].flags |=
+ SM_RX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
+
+ /* tx indices */
+ index_data[HC_INDEX_OOO_TX_CQ_CONS].flags |=
+ SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
+ index_data[HC_INDEX_ETH_TX_CQ_CONS_COS0].flags |=
+ SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
+ index_data[HC_INDEX_ETH_TX_CQ_CONS_COS1].flags |=
+ SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
+ index_data[HC_INDEX_ETH_TX_CQ_CONS_COS2].flags |=
+ SM_TX_ID << HC_INDEX_DATA_SM_ID_SHIFT;
+}
+
static void bnx2x_init_sb(struct bnx2x *bp, dma_addr_t mapping, int vfid,
u8 vf_valid, int fw_sb_id, int igu_sb_id)
{
@@ -4859,6 +4890,7 @@ static void bnx2x_init_sb(struct bnx2x *bp, dma_addr_t mapping, int vfid,
hc_sm_p = sb_data_e2.common.state_machine;
sb_data_p = (u32 *)&sb_data_e2;
data_size = sizeof(struct hc_status_block_data_e2)/sizeof(u32);
+ bnx2x_map_sb_state_machines(sb_data_e2.index_data);
} else {
memset(&sb_data_e1x, 0,
sizeof(struct hc_status_block_data_e1x));
@@ -4873,6 +4905,7 @@ static void bnx2x_init_sb(struct bnx2x *bp, dma_addr_t mapping, int vfid,
hc_sm_p = sb_data_e1x.common.state_machine;
sb_data_p = (u32 *)&sb_data_e1x;
data_size = sizeof(struct hc_status_block_data_e1x)/sizeof(u32);
+ bnx2x_map_sb_state_machines(sb_data_e1x.index_data);
}
bnx2x_setup_ndsb_state_machine(&hc_sm_p[SM_RX_ID],
--
1.7.2.2
next prev parent reply other threads:[~2011-08-30 10:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-30 10:08 [PATCH 0/8] bnx2x: fixes Dmitry Kravkov
2011-08-30 10:08 ` [PATCH 1/8] bnx2x: fix BRB thresholds for dropless_fc mode Dmitry Kravkov
2011-08-30 10:08 ` [PATCH 2/8] bnx2x: decrease print level to debug Dmitry Kravkov
2011-08-30 10:08 ` [PATCH 3/8] bnx2x: fix rx ring size report Dmitry Kravkov
2011-08-30 10:08 ` [PATCH 4/8] bnx2x: fix MF for 4-port devices Dmitry Kravkov
2011-08-30 10:08 ` [PATCH 5/8] bnx2x: don't reset device while reading its configuration Dmitry Kravkov
2011-08-30 10:08 ` [PATCH 6/8] bnx2x: init fw_seq after undi_unload is done Dmitry Kravkov
2011-08-30 10:08 ` [PATCH 7/8] bnx2x: don't access removed registers on 57712 and above Dmitry Kravkov
2011-08-30 10:08 ` Dmitry Kravkov [this message]
2011-09-15 19:06 ` [PATCH 0/8] bnx2x: fixes David Miller
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