From fc90664e3438c990d280f179ccb0642711d5c553 Mon Sep 17 00:00:00 2001 From: Divy Le Ray Date: Sun, 18 Mar 2007 13:10:12 -0700 Subject: cxgb3 - Fix potential MAC hang Under rare conditions, the MAC might hang while generating a pause frame. This patch fine tunes the MAC settings to avoid the issue, allows for periodic MAC state check, and triggers a recovery if hung. Also fix one MAC statistics counter for the rev board T3B2. Signed-off-by: Divy Le Ray Signed-off-by: Jeff Garzik --- drivers/net/cxgb3/regs.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers/net/cxgb3/regs.h') diff --git a/drivers/net/cxgb3/regs.h b/drivers/net/cxgb3/regs.h index b56c5f52bcdc..b38629a244d0 100644 --- a/drivers/net/cxgb3/regs.h +++ b/drivers/net/cxgb3/regs.h @@ -1206,6 +1206,14 @@ #define A_TP_RX_TRC_KEY0 0x120 +#define A_TP_TX_DROP_CNT_CH0 0x12d + +#define S_TXDROPCNTCH0RCVD 0 +#define M_TXDROPCNTCH0RCVD 0xffff +#define V_TXDROPCNTCH0RCVD(x) ((x) << S_TXDROPCNTCH0RCVD) +#define G_TXDROPCNTCH0RCVD(x) (((x) >> S_TXDROPCNTCH0RCVD) & \ + M_TXDROPCNTCH0RCVD) + #define A_ULPRX_CTL 0x500 #define S_ROUND_ROBIN 4 @@ -1834,6 +1842,8 @@ #define V_TXPAUSEEN(x) ((x) << S_TXPAUSEEN) #define F_TXPAUSEEN V_TXPAUSEEN(1U) +#define A_XGM_TX_PAUSE_QUANTA 0x808 + #define A_XGM_RX_CTRL 0x80c #define S_RXEN 0 @@ -1920,6 +1930,11 @@ #define A_XGM_TXFIFO_CFG 0x888 +#define S_TXIPG 13 +#define M_TXIPG 0xff +#define V_TXIPG(x) ((x) << S_TXIPG) +#define G_TXIPG(x) (((x) >> S_TXIPG) & M_TXIPG) + #define S_TXFIFOTHRESH 4 #define M_TXFIFOTHRESH 0x1ff @@ -2190,6 +2205,13 @@ #define A_XGM_RX_MAX_PKT_SIZE_ERR_CNT 0x9a4 +#define A_XGM_TX_SPI4_SOP_EOP_CNT 0x9a8 + +#define S_TXSPI4SOPCNT 16 +#define M_TXSPI4SOPCNT 0xffff +#define V_TXSPI4SOPCNT(x) ((x) << S_TXSPI4SOPCNT) +#define G_TXSPI4SOPCNT(x) (((x) >> S_TXSPI4SOPCNT) & M_TXSPI4SOPCNT) + #define A_XGM_RX_SPI4_SOP_EOP_CNT 0x9ac #define XGMAC0_1_BASE_ADDR 0xa00 -- cgit v1.2.3