[PATCH 11/18] tg3: Add coalesce parameters for msix vectors
From: Matt Carlson <hidden>
Date: 2009-09-02 04:55:21
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
This patch adds code to tune the coalescing parameters for the other msix vectors. Signed-off-by: Matt Carlson <redacted> Reviewed-by: Benjamin Li <redacted> --- 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