leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

bnx2x: PFC fixes

Browse Source 
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>
This commit is contained in:
Yaniv Rosner 2011-07-05 01:06:27 +00:00 committed by David S. Miller
parent d4d2d28897
commit b8d6d0824d
3 changed files with 64 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/bnx2x/bnx2x_hsi.h
View File

@ -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;

87
drivers/net/bnx2x/bnx2x_link.c
View File

@ -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);
/* 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])));
udelay(30);
}
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);
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",

12
drivers/net/bnx2x/bnx2x_reg.h
View File

@ -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