diff options
author | Yaniv Rosner <yanivr@broadcom.com> | 2011-07-05 01:06:27 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2011-07-05 04:21:39 -0700 |
commit | b8d6d0824d064ad447e6aacbce90f3a340d93d65 (patch) | |
tree | 5b535f45cd7b8e4ff8b9f91ef23b5285b2ca4b74 /drivers/net | |
parent | d4d2d288972233fc054f3b3341c2a15865fba7c6 (diff) | |
download | linux-b8d6d0824d064ad447e6aacbce90f3a340d93d65.tar.bz2 |
bnx2x: PFC fixes
Set the source MAC address for PFC packets and update its status during PMF migration.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/bnx2x/bnx2x_hsi.h | 2 | ||||
-rw-r--r-- | drivers/net/bnx2x/bnx2x_link.c | 87 | ||||
-rw-r--r-- | drivers/net/bnx2x/bnx2x_reg.h | 12 |
3 files changed, 64 insertions, 37 deletions
diff --git a/drivers/net/bnx2x/bnx2x_hsi.h b/drivers/net/bnx2x/bnx2x_hsi.h index df5355818c30..d6a7aa95d968 100644 --- a/drivers/net/bnx2x/bnx2x_hsi.h +++ b/drivers/net/bnx2x/bnx2x_hsi.h @@ -1196,6 +1196,8 @@ struct drv_port_mb { #define LINK_STATUS_LINK_PARTNER_10GXFD_CAPABLE 0x00800000 #define LINK_STATUS_LINK_PARTNER_20GXFD_CAPABLE 0x10000000 + #define LINK_STATUS_PFC_ENABLED 0x20000000 + u32 port_stx; u32 stat_nig_timer; diff --git a/drivers/net/bnx2x/bnx2x_link.c b/drivers/net/bnx2x/bnx2x_link.c index 836363645daf..57ba8110aa5f 100644 --- a/drivers/net/bnx2x/bnx2x_link.c +++ b/drivers/net/bnx2x/bnx2x_link.c @@ -1344,28 +1344,21 @@ static void bnx2x_update_pfc_xmac(struct link_params *params, REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val); REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val); - udelay(30); -} + /* Set MAC address for source TX Pause/PFC frames */ + REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_LO, + ((params->mac_addr[2] << 24) | + (params->mac_addr[3] << 16) | + (params->mac_addr[4] << 8) | + (params->mac_addr[5]))); + REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_HI, + ((params->mac_addr[0] << 8) | + (params->mac_addr[1]))); -static void bnx2x_bmac2_get_pfc_stat(struct link_params *params, - u32 pfc_frames_sent[2], - u32 pfc_frames_received[2]) -{ - /* Read pfc statistic */ - struct bnx2x *bp = params->bp; - u32 bmac_addr = params->port ? NIG_REG_INGRESS_BMAC1_MEM : - NIG_REG_INGRESS_BMAC0_MEM; - - DP(NETIF_MSG_LINK, "pfc statistic read from BMAC\n"); - - REG_RD_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_STAT_GTPP, - pfc_frames_sent, 2); + udelay(30); +} - REG_RD_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_STAT_GRPP, - pfc_frames_received, 2); -} static void bnx2x_emac_get_pfc_stat(struct link_params *params, u32 pfc_frames_sent[2], u32 pfc_frames_received[2]) @@ -1397,28 +1390,23 @@ static void bnx2x_emac_get_pfc_stat(struct link_params *params, pfc_frames_sent[0] = val_xon + val_xoff; } +/* Read pfc statistic*/ void bnx2x_pfc_statistic(struct link_params *params, struct link_vars *vars, u32 pfc_frames_sent[2], u32 pfc_frames_received[2]) { /* Read pfc statistic */ struct bnx2x *bp = params->bp; - u32 val = 0; + DP(NETIF_MSG_LINK, "pfc statistic\n"); if (!vars->link_up) return; - val = REG_RD(bp, MISC_REG_RESET_REG_2); - if ((val & (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port)) - == 0) { - DP(NETIF_MSG_LINK, "About to read stats from EMAC\n"); + if (MAC_TYPE_EMAC == vars->mac_type) { + DP(NETIF_MSG_LINK, "About to read PFC stats from EMAC\n"); bnx2x_emac_get_pfc_stat(params, pfc_frames_sent, pfc_frames_received); - } else { - DP(NETIF_MSG_LINK, "About to read stats from BMAC\n"); - bnx2x_bmac2_get_pfc_stat(params, pfc_frames_sent, - pfc_frames_received); } } /******************************************************************/ @@ -1561,6 +1549,16 @@ static void bnx2x_umac_enable(struct link_params *params, REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val); udelay(50); + /* Set MAC address for source TX Pause/PFC frames (under SW reset) */ + REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR0, + ((params->mac_addr[2] << 24) | + (params->mac_addr[3] << 16) | + (params->mac_addr[4] << 8) | + (params->mac_addr[5]))); + REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR1, + ((params->mac_addr[0] << 8) | + (params->mac_addr[1]))); + /* Enable RX and TX */ val &= ~UMAC_COMMAND_CONFIG_REG_PAD_EN; val |= UMAC_COMMAND_CONFIG_REG_TX_ENA | @@ -2358,6 +2356,15 @@ int bnx2x_pfc_nig_rx_priority_mask(struct bnx2x *bp, return 0; } +static void bnx2x_update_mng(struct link_params *params, u32 link_status) +{ + struct bnx2x *bp = params->bp; + + REG_WR(bp, params->shmem_base + + offsetof(struct shmem_region, + port_mb[params->port].link_status), link_status); +} + static void bnx2x_update_pfc_nig(struct link_params *params, struct link_vars *vars, struct bnx2x_nig_brb_pfc_port_params *nig_params) @@ -2467,6 +2474,14 @@ int bnx2x_update_pfc(struct link_params *params, struct bnx2x *bp = params->bp; int bnx2x_status = 0; u8 bmac_loopback = (params->loopback_mode == LOOPBACK_BMAC); + + if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) + vars->link_status |= LINK_STATUS_PFC_ENABLED; + else + vars->link_status &= ~LINK_STATUS_PFC_ENABLED; + + bnx2x_update_mng(params, vars->link_status); + /* update NIG params */ bnx2x_update_pfc_nig(params, vars, pfc_params); @@ -2695,16 +2710,6 @@ static int bnx2x_bmac_enable(struct link_params *params, return rc; } - -static void bnx2x_update_mng(struct link_params *params, u32 link_status) -{ - struct bnx2x *bp = params->bp; - - REG_WR(bp, params->shmem_base + - offsetof(struct shmem_region, - port_mb[params->port].link_status), link_status); -} - static void bnx2x_bmac_rx_disable(struct bnx2x *bp, u8 port) { u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM : @@ -4453,6 +4458,14 @@ void bnx2x_link_status_update(struct link_params *params, vars->aeu_int_mask = REG_RD(bp, sync_offset); + /* Sync PFC status */ + if (vars->link_status & LINK_STATUS_PFC_ENABLED) + params->feature_config_flags |= + FEATURE_CONFIG_PFC_ENABLED; + else + params->feature_config_flags &= + ~FEATURE_CONFIG_PFC_ENABLED; + DP(NETIF_MSG_LINK, "link_status 0x%x phy_link_up %x int_mask 0x%x\n", vars->link_status, vars->phy_link_up, vars->aeu_int_mask); DP(NETIF_MSG_LINK, "line_speed %x duplex %x flow_ctrl 0x%x\n", diff --git a/drivers/net/bnx2x/bnx2x_reg.h b/drivers/net/bnx2x/bnx2x_reg.h index 53da4ef19928..064b4452664b 100644 --- a/drivers/net/bnx2x/bnx2x_reg.h +++ b/drivers/net/bnx2x/bnx2x_reg.h @@ -4771,6 +4771,12 @@ #define UMAC_COMMAND_CONFIG_REG_SW_RESET (0x1<<13) #define UMAC_COMMAND_CONFIG_REG_TX_ENA (0x1<<0) #define UMAC_REG_COMMAND_CONFIG 0x8 +/* [RW 32] Register Bit 0 refers to Bit 16 of the MAC address; Bit 1 refers + * to bit 17 of the MAC address etc. */ +#define UMAC_REG_MAC_ADDR0 0xc +/* [RW 16] Register Bit 0 refers to Bit 0 of the MAC address; Register Bit 1 + * refers to Bit 1 of the MAC address etc. Bits 16 to 31 are reserved. */ +#define UMAC_REG_MAC_ADDR1 0x10 /* [RW 14] Defines a 14-Bit maximum frame length used by the MAC receive * logic to check frames. */ #define UMAC_REG_MAXFR 0x14 @@ -5300,6 +5306,12 @@ #define XMAC_PFC_CTRL_HI_REG_TX_PFC_EN (0x1<<5) #define XMAC_REG_CLEAR_RX_LSS_STATUS 0x60 #define XMAC_REG_CTRL 0 +/* [RW 16] Upper 48 bits of ctrl_sa register. Used as the SA in PAUSE/PFC + * packets transmitted by the MAC */ +#define XMAC_REG_CTRL_SA_HI 0x2c +/* [RW 32] Lower 48 bits of ctrl_sa register. Used as the SA in PAUSE/PFC + * packets transmitted by the MAC */ +#define XMAC_REG_CTRL_SA_LO 0x28 #define XMAC_REG_PAUSE_CTRL 0x68 #define XMAC_REG_PFC_CTRL 0x70 #define XMAC_REG_PFC_CTRL_HI 0x74 |