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Date: Tue, 1 Sep 2009 16:12:00 -0700
From: "Matt Carlson" <mcarlson@...adcom.com>
To: davem@...emloft.net
cc: netdev@...r.kernel.org, andy@...yhouse.net
Subject: [PATCH 11/18] tg3: Add coalesce parameters for msix vectors
This patch adds code to tune the coalescing parameters for the other
msix vectors.
Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
Reviewed-by: Benjamin Li <benli@...adcom.com>
---
drivers/net/tg3.c | 57 ++++++++++++++++++++++++++++++++++++++++++++--------
drivers/net/tg3.h | 10 ++++++++-
2 files changed, 57 insertions(+), 10 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index ad0fc5d..8e9492b 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -6876,24 +6876,63 @@ static void tg3_set_bdinfo(struct tg3 *tp, u32 bdinfo_addr,
static void __tg3_set_rx_mode(struct net_device *);
static void __tg3_set_coalesce(struct tg3 *tp, struct ethtool_coalesce *ec)
{
- tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
- tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
- tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
- tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
- if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
- tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
- tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
+ int i;
+
+ if (!(tp->tg3_flags2 & TG3_FLG2_USING_MSIX)) {
+ tw32(HOSTCC_TXCOL_TICKS, ec->tx_coalesce_usecs);
+ tw32(HOSTCC_TXMAX_FRAMES, ec->tx_max_coalesced_frames);
+ tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
+
+ tw32(HOSTCC_RXCOL_TICKS, ec->rx_coalesce_usecs);
+ tw32(HOSTCC_RXMAX_FRAMES, ec->rx_max_coalesced_frames);
+ tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
+ } else {
+ tw32(HOSTCC_TXCOL_TICKS, 0);
+ tw32(HOSTCC_TXMAX_FRAMES, 0);
+ tw32(HOSTCC_TXCOAL_MAXF_INT, 0);
+
+ tw32(HOSTCC_RXCOL_TICKS, 0);
+ tw32(HOSTCC_RXMAX_FRAMES, 0);
+ tw32(HOSTCC_RXCOAL_MAXF_INT, 0);
}
- tw32(HOSTCC_RXCOAL_MAXF_INT, ec->rx_max_coalesced_frames_irq);
- tw32(HOSTCC_TXCOAL_MAXF_INT, ec->tx_max_coalesced_frames_irq);
+
if (!(tp->tg3_flags2 & TG3_FLG2_5705_PLUS)) {
u32 val = ec->stats_block_coalesce_usecs;
+ tw32(HOSTCC_RXCOAL_TICK_INT, ec->rx_coalesce_usecs_irq);
+ tw32(HOSTCC_TXCOAL_TICK_INT, ec->tx_coalesce_usecs_irq);
+
if (!netif_carrier_ok(tp->dev))
val = 0;
tw32(HOSTCC_STAT_COAL_TICKS, val);
}
+
+ for (i = 0; i < tp->irq_cnt - 1; i++) {
+ u32 reg;
+
+ reg = HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18;
+ tw32(reg, ec->rx_coalesce_usecs);
+ reg = HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18;
+ tw32(reg, ec->tx_coalesce_usecs);
+ reg = HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18;
+ tw32(reg, ec->rx_max_coalesced_frames);
+ reg = HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18;
+ tw32(reg, ec->tx_max_coalesced_frames);
+ reg = HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18;
+ tw32(reg, ec->rx_max_coalesced_frames_irq);
+ reg = HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18;
+ tw32(reg, ec->tx_max_coalesced_frames_irq);
+ }
+
+ for (; i < tp->irq_max - 1; i++) {
+ tw32(HOSTCC_RXCOL_TICKS_VEC1 + i * 0x18, 0);
+ tw32(HOSTCC_TXCOL_TICKS_VEC1 + i * 0x18, 0);
+ tw32(HOSTCC_RXMAX_FRAMES_VEC1 + i * 0x18, 0);
+ tw32(HOSTCC_TXMAX_FRAMES_VEC1 + i * 0x18, 0);
+ tw32(HOSTCC_RXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
+ tw32(HOSTCC_TXCOAL_MAXF_INT_VEC1 + i * 0x18, 0);
+ }
}
/* tp->lock is held. */
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index d1c7add..978b6d9 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1119,7 +1119,15 @@
#define HOSTCC_SND_CON_IDX_14 0x00003cf8
#define HOSTCC_SND_CON_IDX_15 0x00003cfc
#define HOSTCC_STATBLCK_RING1 0x00003d00
-/* 0x3d04 --> 0x4000 unused */
+/* 0x3d00 --> 0x3d80 unused */
+
+#define HOSTCC_RXCOL_TICKS_VEC1 0x00003d80
+#define HOSTCC_TXCOL_TICKS_VEC1 0x00003d84
+#define HOSTCC_RXMAX_FRAMES_VEC1 0x00003d88
+#define HOSTCC_TXMAX_FRAMES_VEC1 0x00003d8c
+#define HOSTCC_RXCOAL_MAXF_INT_VEC1 0x00003d90
+#define HOSTCC_TXCOAL_MAXF_INT_VEC1 0x00003d94
+/* 0x3d98 --> 0x4000 unused */
/* Memory arbiter control registers */
#define MEMARB_MODE 0x00004000
--
1.6.3.3
--
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