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Date: Wed, 12 Aug 2009 21:23:11 +0300
From: "Eilon Greenstein" <eilong@...adcom.com>
To: "David Miller" <davem@...emloft.net>
cc: netdev@...r.kernel.org
Subject: [net-next 12/36] bnx2x: Supporting PHY FW upgrade
There are 3 operations that the driver needs to support to allow applications to
access the PHY FW (on top of the MDC/MDIO access). Since those are essentially
nvram access commands, adding them to the ethtool -E interface.
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
drivers/net/bnx2x_link.c | 21 ++++++-------
drivers/net/bnx2x_link.h | 4 ++
drivers/net/bnx2x_main.c | 72 ++++++++++++++++++++++++++++++++++-----------
3 files changed, 67 insertions(+), 30 deletions(-)
diff --git a/drivers/net/bnx2x_link.c b/drivers/net/bnx2x_link.c
index 371310d..98e3e8f 100644
--- a/drivers/net/bnx2x_link.c
+++ b/drivers/net/bnx2x_link.c
@@ -1996,7 +1996,7 @@ static u8 bnx2x_emac_program(struct link_params *params,
/*****************************************************************************/
/* External Phy section */
/*****************************************************************************/
-static void bnx2x_hw_reset(struct bnx2x *bp, u8 port)
+void bnx2x_ext_phy_hw_reset(struct bnx2x *bp, u8 port)
{
bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
@@ -2035,7 +2035,7 @@ static void bnx2x_ext_phy_reset(struct link_params *params,
params->port);
/* HW reset */
- bnx2x_hw_reset(bp, params->port);
+ bnx2x_ext_phy_hw_reset(bp, params->port);
bnx2x_cl45_write(bp, params->port,
ext_phy_type,
@@ -2106,8 +2106,7 @@ static void bnx2x_ext_phy_reset(struct link_params *params,
params->port);
/* HW reset */
- bnx2x_hw_reset(bp, params->port);
-
+ bnx2x_ext_phy_hw_reset(bp, params->port);
break;
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481:
@@ -2118,7 +2117,7 @@ static void bnx2x_ext_phy_reset(struct link_params *params,
params->port);
/* HW reset */
- bnx2x_hw_reset(bp, params->port);
+ bnx2x_ext_phy_hw_reset(bp, params->port);
bnx2x_cl45_write(bp, params->port,
ext_phy_type,
@@ -2146,7 +2145,7 @@ static void bnx2x_ext_phy_reset(struct link_params *params,
case PORT_HW_CFG_SERDES_EXT_PHY_TYPE_BCM5482:
DP(NETIF_MSG_LINK, "SerDes 5482\n");
- bnx2x_hw_reset(bp, params->port);
+ bnx2x_ext_phy_hw_reset(bp, params->port);
break;
default:
@@ -6573,7 +6572,7 @@ static u8 bnx2x_8727_common_init_phy(struct bnx2x *bp, u32 shmem_base)
swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
- bnx2x_hw_reset(bp, 1 ^ (swap_val && swap_override));
+ bnx2x_ext_phy_hw_reset(bp, 1 ^ (swap_val && swap_override));
msleep(5);
if (swap_val && swap_override)
@@ -6647,7 +6646,7 @@ static u8 bnx2x_8726_common_init_phy(struct bnx2x *bp, u32 shmem_base)
(1<<(MISC_REGISTERS_GPIO_3 + MISC_REGISTERS_GPIO_PORT_SHIFT)));
REG_WR(bp, MISC_REG_GPIO_EVENT_EN, val);
- bnx2x_hw_reset(bp, 1);
+ bnx2x_ext_phy_hw_reset(bp, 1);
msleep(5);
for (port = 0; port < PORT_MAX; port++) {
/* Extract the ext phy address for the port */
@@ -6714,9 +6713,7 @@ u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base)
return rc;
}
-
-
-static void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, u8 port, u8 phy_addr)
+void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, u8 port, u8 phy_addr)
{
u16 val, cnt;
@@ -7032,7 +7029,7 @@ static u8 bnx2x_sfx7101_flash_download(struct bnx2x *bp, u8 port,
for (cnt = 0; cnt < 100; cnt++)
msleep(5);
- bnx2x_hw_reset(bp, port);
+ bnx2x_ext_phy_hw_reset(bp, port);
for (cnt = 0; cnt < 100; cnt++)
msleep(5);
diff --git a/drivers/net/bnx2x_link.h b/drivers/net/bnx2x_link.h
index d25ef45..9805d21 100644
--- a/drivers/net/bnx2x_link.h
+++ b/drivers/net/bnx2x_link.h
@@ -187,6 +187,10 @@ u8 bnx2x_test_link(struct link_params *input, struct link_vars *vars);
/* One-time initialization for external phy after power up */
u8 bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base);
+/* Reset the external PHY using GPIO */
+void bnx2x_ext_phy_hw_reset(struct bnx2x *bp, u8 port);
+
+void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, u8 port, u8 phy_addr);
u8 bnx2x_read_sfp_module_eeprom(struct link_params *params, u16 addr,
u8 byte_cnt, u8 *o_buf);
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 1be2da4..06b250b 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -9352,7 +9352,8 @@ static int bnx2x_set_eeprom(struct net_device *dev,
struct ethtool_eeprom *eeprom, u8 *eebuf)
{
struct bnx2x *bp = netdev_priv(dev);
- int rc;
+ int port = BP_PORT(bp);
+ int rc = 0;
if (!netif_running(dev))
return -EAGAIN;
@@ -9364,27 +9365,62 @@ static int bnx2x_set_eeprom(struct net_device *dev,
/* parameters already validated in ethtool_set_eeprom */
- /* If the magic number is PHY (0x00504859) upgrade the PHY FW */
- if (eeprom->magic == 0x00504859)
- if (bp->port.pmf) {
+ /* PHY eeprom can be accessed only by the PMF */
+ if ((eeprom->magic >= 0x50485900) && (eeprom->magic <= 0x504859FF) &&
+ !bp->port.pmf)
+ return -EINVAL;
+
+ if (eeprom->magic == 0x50485950) {
+ /* 'PHYP' (0x50485950): prepare phy for FW upgrade */
+ bnx2x_stats_handle(bp, STATS_EVENT_STOP);
+ bnx2x_acquire_phy_lock(bp);
+ rc |= bnx2x_link_reset(&bp->link_params,
+ &bp->link_vars, 0);
+ if (XGXS_EXT_PHY_TYPE(bp->link_params.ext_phy_config) ==
+ PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101)
+ bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_0,
+ MISC_REGISTERS_GPIO_HIGH, port);
+ bnx2x_release_phy_lock(bp);
+ bnx2x_link_report(bp);
+
+ } else if (eeprom->magic == 0x50485952) {
+ /* 'PHYR' (0x50485952): re-init link after FW upgrade */
+ if ((bp->state == BNX2X_STATE_OPEN) ||
+ (bp->state == BNX2X_STATE_DISABLED)) {
bnx2x_acquire_phy_lock(bp);
- rc = bnx2x_flash_download(bp, BP_PORT(bp),
- bp->link_params.ext_phy_config,
- (bp->state != BNX2X_STATE_CLOSED),
- eebuf, eeprom->len);
- if ((bp->state == BNX2X_STATE_OPEN) ||
- (bp->state == BNX2X_STATE_DISABLED)) {
- rc |= bnx2x_link_reset(&bp->link_params,
- &bp->link_vars, 1);
- rc |= bnx2x_phy_init(&bp->link_params,
- &bp->link_vars);
- }
+ rc |= bnx2x_link_reset(&bp->link_params,
+ &bp->link_vars, 1);
+
+ rc |= bnx2x_phy_init(&bp->link_params,
+ &bp->link_vars);
bnx2x_release_phy_lock(bp);
+ bnx2x_calc_fc_adv(bp);
+ }
+ } else if (eeprom->magic == 0x53985943) {
+ /* 'PHYC' (0x53985943): PHY FW upgrade completed */
+ if (XGXS_EXT_PHY_TYPE(bp->link_params.ext_phy_config) ==
+ PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101) {
+ u8 ext_phy_addr =
+ (bp->link_params.ext_phy_config &
+ PORT_HW_CFG_XGXS_EXT_PHY_ADDR_MASK) >>
+ PORT_HW_CFG_XGXS_EXT_PHY_ADDR_SHIFT;
+
+ /* DSP Remove Download Mode */
+ bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_0,
+ MISC_REGISTERS_GPIO_LOW, port);
- } else /* Only the PMF can access the PHY */
- return -EINVAL;
- else
+ bnx2x_acquire_phy_lock(bp);
+
+ bnx2x_sfx7101_sp_sw_reset(bp, port, ext_phy_addr);
+
+ /* wait 0.5 sec to allow it to run */
+ msleep(500);
+ bnx2x_ext_phy_hw_reset(bp, port);
+ msleep(500);
+ bnx2x_release_phy_lock(bp);
+ }
+ } else
rc = bnx2x_nvram_write(bp, eeprom->offset, eebuf, eeprom->len);
return rc;
--
1.5.4.3
--
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