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bnx2x: Refactor MAC address setup code.
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For iSCSI MAC address setup in later patches.

Signed-off-by: Shmulik Ravid - Rabinovitz <shmulikr@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Chan authored and David S. Miller committed Oct 12, 2009
1 parent 2891290 commit e665bfd
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Showing 2 changed files with 114 additions and 52 deletions.
4 changes: 2 additions & 2 deletions drivers/net/bnx2x.h
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Original file line number Diff line number Diff line change
Expand Up @@ -863,8 +863,8 @@ struct bnx2x {

/* Flags for marking that there is a STAT_QUERY or
SET_MAC ramrod pending */
u8 stats_pending;
u8 set_mac_pending;
int stats_pending;
int set_mac_pending;

/* End of fields used in the performance code paths */

Expand Down
162 changes: 112 additions & 50 deletions drivers/net/bnx2x_main.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1026,12 +1026,15 @@ static void bnx2x_sp_event(struct bnx2x_fastpath *fp,
case (RAMROD_CMD_ID_ETH_SET_MAC | BNX2X_STATE_OPEN):
case (RAMROD_CMD_ID_ETH_SET_MAC | BNX2X_STATE_DIAG):
DP(NETIF_MSG_IFUP, "got set mac ramrod\n");
bp->set_mac_pending = 0;
bp->set_mac_pending--;
smp_wmb();
break;

case (RAMROD_CMD_ID_ETH_SET_MAC | BNX2X_STATE_CLOSING_WAIT4_HALT):
case (RAMROD_CMD_ID_ETH_SET_MAC | BNX2X_STATE_DISABLED):
DP(NETIF_MSG_IFDOWN, "got (un)set mac ramrod\n");
bp->set_mac_pending--;
smp_wmb();
break;

default:
Expand Down Expand Up @@ -2530,7 +2533,7 @@ u32 bnx2x_fw_command(struct bnx2x *bp, u32 command)
}

static void bnx2x_set_storm_rx_mode(struct bnx2x *bp);
static void bnx2x_set_mac_addr_e1h(struct bnx2x *bp, int set);
static void bnx2x_set_eth_mac_addr_e1h(struct bnx2x *bp, int set);
static void bnx2x_set_rx_mode(struct net_device *dev);

static void bnx2x_e1h_disable(struct bnx2x *bp)
Expand All @@ -2546,7 +2549,7 @@ static void bnx2x_e1h_disable(struct bnx2x *bp)

REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);

bnx2x_set_mac_addr_e1h(bp, 0);
bnx2x_set_eth_mac_addr_e1h(bp, 0);

for (i = 0; i < MC_HASH_SIZE; i++)
REG_WR(bp, MC_HASH_OFFSET(bp, i), 0);
Expand All @@ -2560,7 +2563,7 @@ static void bnx2x_e1h_enable(struct bnx2x *bp)

REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 1);

bnx2x_set_mac_addr_e1h(bp, 1);
bnx2x_set_eth_mac_addr_e1h(bp, 1);

/* Tx queue should be only reenabled */
netif_tx_wake_all_queues(bp->dev);
Expand Down Expand Up @@ -7036,7 +7039,19 @@ static void bnx2x_netif_stop(struct bnx2x *bp, int disable_hw)
* Init service functions
*/

static void bnx2x_set_mac_addr_e1(struct bnx2x *bp, int set)
/**
* Sets a MAC in a CAM for a few L2 Clients for E1 chip
*
* @param bp driver descriptor
* @param set set or clear an entry (1 or 0)
* @param mac pointer to a buffer containing a MAC
* @param cl_bit_vec bit vector of clients to register a MAC for
* @param cam_offset offset in a CAM to use
* @param with_bcast set broadcast MAC as well
*/
static void bnx2x_set_mac_addr_e1_gen(struct bnx2x *bp, int set, u8 *mac,
u32 cl_bit_vec, u8 cam_offset,
u8 with_bcast)
{
struct mac_configuration_cmd *config = bnx2x_sp(bp, mac_config);
int port = BP_PORT(bp);
Expand All @@ -7045,25 +7060,25 @@ static void bnx2x_set_mac_addr_e1(struct bnx2x *bp, int set)
* unicasts 0-31:port0 32-63:port1
* multicast 64-127:port0 128-191:port1
*/
config->hdr.length = 2;
config->hdr.offset = port ? 32 : 0;
config->hdr.client_id = bp->fp->cl_id;
config->hdr.length = 1 + (with_bcast ? 1 : 0);
config->hdr.offset = cam_offset;
config->hdr.client_id = 0xff;
config->hdr.reserved1 = 0;

/* primary MAC */
config->config_table[0].cam_entry.msb_mac_addr =
swab16(*(u16 *)&bp->dev->dev_addr[0]);
swab16(*(u16 *)&mac[0]);
config->config_table[0].cam_entry.middle_mac_addr =
swab16(*(u16 *)&bp->dev->dev_addr[2]);
swab16(*(u16 *)&mac[2]);
config->config_table[0].cam_entry.lsb_mac_addr =
swab16(*(u16 *)&bp->dev->dev_addr[4]);
swab16(*(u16 *)&mac[4]);
config->config_table[0].cam_entry.flags = cpu_to_le16(port);
if (set)
config->config_table[0].target_table_entry.flags = 0;
else
CAM_INVALIDATE(config->config_table[0]);
config->config_table[0].target_table_entry.clients_bit_vector =
cpu_to_le32(1 << BP_L_ID(bp));
cpu_to_le32(cl_bit_vec);
config->config_table[0].target_table_entry.vlan_id = 0;

DP(NETIF_MSG_IFUP, "%s MAC (%04x:%04x:%04x)\n",
Expand All @@ -7073,47 +7088,58 @@ static void bnx2x_set_mac_addr_e1(struct bnx2x *bp, int set)
config->config_table[0].cam_entry.lsb_mac_addr);

/* broadcast */
config->config_table[1].cam_entry.msb_mac_addr = cpu_to_le16(0xffff);
config->config_table[1].cam_entry.middle_mac_addr = cpu_to_le16(0xffff);
config->config_table[1].cam_entry.lsb_mac_addr = cpu_to_le16(0xffff);
config->config_table[1].cam_entry.flags = cpu_to_le16(port);
if (set)
config->config_table[1].target_table_entry.flags =
TSTORM_CAM_TARGET_TABLE_ENTRY_BROADCAST;
else
CAM_INVALIDATE(config->config_table[1]);
config->config_table[1].target_table_entry.clients_bit_vector =
cpu_to_le32(1 << BP_L_ID(bp));
config->config_table[1].target_table_entry.vlan_id = 0;
if (with_bcast) {
config->config_table[1].cam_entry.msb_mac_addr =
cpu_to_le16(0xffff);
config->config_table[1].cam_entry.middle_mac_addr =
cpu_to_le16(0xffff);
config->config_table[1].cam_entry.lsb_mac_addr =
cpu_to_le16(0xffff);
config->config_table[1].cam_entry.flags = cpu_to_le16(port);
if (set)
config->config_table[1].target_table_entry.flags =
TSTORM_CAM_TARGET_TABLE_ENTRY_BROADCAST;
else
CAM_INVALIDATE(config->config_table[1]);
config->config_table[1].target_table_entry.clients_bit_vector =
cpu_to_le32(cl_bit_vec);
config->config_table[1].target_table_entry.vlan_id = 0;
}

bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_SET_MAC, 0,
U64_HI(bnx2x_sp_mapping(bp, mac_config)),
U64_LO(bnx2x_sp_mapping(bp, mac_config)), 0);
}

static void bnx2x_set_mac_addr_e1h(struct bnx2x *bp, int set)
/**
* Sets a MAC in a CAM for a few L2 Clients for E1H chip
*
* @param bp driver descriptor
* @param set set or clear an entry (1 or 0)
* @param mac pointer to a buffer containing a MAC
* @param cl_bit_vec bit vector of clients to register a MAC for
* @param cam_offset offset in a CAM to use
*/
static void bnx2x_set_mac_addr_e1h_gen(struct bnx2x *bp, int set, u8 *mac,
u32 cl_bit_vec, u8 cam_offset)
{
struct mac_configuration_cmd_e1h *config =
(struct mac_configuration_cmd_e1h *)bnx2x_sp(bp, mac_config);

/* CAM allocation for E1H
* unicasts: by func number
* multicast: 20+FUNC*20, 20 each
*/
config->hdr.length = 1;
config->hdr.offset = BP_FUNC(bp);
config->hdr.client_id = bp->fp->cl_id;
config->hdr.offset = cam_offset;
config->hdr.client_id = 0xff;
config->hdr.reserved1 = 0;

/* primary MAC */
config->config_table[0].msb_mac_addr =
swab16(*(u16 *)&bp->dev->dev_addr[0]);
swab16(*(u16 *)&mac[0]);
config->config_table[0].middle_mac_addr =
swab16(*(u16 *)&bp->dev->dev_addr[2]);
swab16(*(u16 *)&mac[2]);
config->config_table[0].lsb_mac_addr =
swab16(*(u16 *)&bp->dev->dev_addr[4]);
swab16(*(u16 *)&mac[4]);
config->config_table[0].clients_bit_vector =
cpu_to_le32(1 << BP_L_ID(bp));
cpu_to_le32(cl_bit_vec);
config->config_table[0].vlan_id = 0;
config->config_table[0].e1hov_id = cpu_to_le16(bp->e1hov);
if (set)
Expand All @@ -7122,11 +7148,11 @@ static void bnx2x_set_mac_addr_e1h(struct bnx2x *bp, int set)
config->config_table[0].flags =
MAC_CONFIGURATION_ENTRY_E1H_ACTION_TYPE;

DP(NETIF_MSG_IFUP, "%s MAC (%04x:%04x:%04x) E1HOV %d CLID %d\n",
DP(NETIF_MSG_IFUP, "%s MAC (%04x:%04x:%04x) E1HOV %d CLID mask %d\n",
(set ? "setting" : "clearing"),
config->config_table[0].msb_mac_addr,
config->config_table[0].middle_mac_addr,
config->config_table[0].lsb_mac_addr, bp->e1hov, BP_L_ID(bp));
config->config_table[0].lsb_mac_addr, bp->e1hov, cl_bit_vec);

bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_SET_MAC, 0,
U64_HI(bnx2x_sp_mapping(bp, mac_config)),
Expand Down Expand Up @@ -7178,6 +7204,31 @@ static int bnx2x_wait_ramrod(struct bnx2x *bp, int state, int idx,
return -EBUSY;
}

static void bnx2x_set_eth_mac_addr_e1h(struct bnx2x *bp, int set)
{
bp->set_mac_pending++;
smp_wmb();

bnx2x_set_mac_addr_e1h_gen(bp, set, bp->dev->dev_addr,
(1 << bp->fp->cl_id), BP_FUNC(bp));

/* Wait for a completion */
bnx2x_wait_ramrod(bp, 0, 0, &bp->set_mac_pending, set ? 0 : 1);
}

static void bnx2x_set_eth_mac_addr_e1(struct bnx2x *bp, int set)
{
bp->set_mac_pending++;
smp_wmb();

bnx2x_set_mac_addr_e1_gen(bp, set, bp->dev->dev_addr,
(1 << bp->fp->cl_id), (BP_PORT(bp) ? 32 : 0),
1);

/* Wait for a completion */
bnx2x_wait_ramrod(bp, 0, 0, &bp->set_mac_pending, set ? 0 : 1);
}

static int bnx2x_setup_leading(struct bnx2x *bp)
{
int rc;
Expand Down Expand Up @@ -7452,9 +7503,9 @@ static int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
}

if (CHIP_IS_E1(bp))
bnx2x_set_mac_addr_e1(bp, 1);
bnx2x_set_eth_mac_addr_e1(bp, 1);
else
bnx2x_set_mac_addr_e1h(bp, 1);
bnx2x_set_eth_mac_addr_e1h(bp, 1);
}

if (bp->port.pmf)
Expand Down Expand Up @@ -7717,7 +7768,7 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
struct mac_configuration_cmd *config =
bnx2x_sp(bp, mcast_config);

bnx2x_set_mac_addr_e1(bp, 0);
bnx2x_set_eth_mac_addr_e1(bp, 0);

for (i = 0; i < config->hdr.length; i++)
CAM_INVALIDATE(config->config_table[i]);
Expand All @@ -7730,14 +7781,17 @@ static int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode)
config->hdr.client_id = bp->fp->cl_id;
config->hdr.reserved1 = 0;

bp->set_mac_pending++;
smp_wmb();

bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_SET_MAC, 0,
U64_HI(bnx2x_sp_mapping(bp, mcast_config)),
U64_LO(bnx2x_sp_mapping(bp, mcast_config)), 0);

} else { /* E1H */
REG_WR(bp, NIG_REG_LLH0_FUNC_EN + port*8, 0);

bnx2x_set_mac_addr_e1h(bp, 0);
bnx2x_set_eth_mac_addr_e1h(bp, 0);

for (i = 0; i < MC_HASH_SIZE; i++)
REG_WR(bp, MC_HASH_OFFSET(bp, i), 0);
Expand Down Expand Up @@ -8520,6 +8574,14 @@ static void __devinit bnx2x_link_settings_requested(struct bnx2x *bp)
bp->link_params.req_flow_ctrl, bp->port.advertising);
}

static void __devinit bnx2x_set_mac_buf(u8 *mac_buf, u32 mac_lo, u16 mac_hi)
{
mac_hi = cpu_to_be16(mac_hi);
mac_lo = cpu_to_be32(mac_lo);
memcpy(mac_buf, &mac_hi, sizeof(mac_hi));
memcpy(mac_buf + sizeof(mac_hi), &mac_lo, sizeof(mac_lo));
}

static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)
{
int port = BP_PORT(bp);
Expand Down Expand Up @@ -8601,12 +8663,7 @@ static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)

val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_upper);
val = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_lower);
bp->dev->dev_addr[0] = (u8)(val2 >> 8 & 0xff);
bp->dev->dev_addr[1] = (u8)(val2 & 0xff);
bp->dev->dev_addr[2] = (u8)(val >> 24 & 0xff);
bp->dev->dev_addr[3] = (u8)(val >> 16 & 0xff);
bp->dev->dev_addr[4] = (u8)(val >> 8 & 0xff);
bp->dev->dev_addr[5] = (u8)(val & 0xff);
bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
memcpy(bp->link_params.mac_addr, bp->dev->dev_addr, ETH_ALEN);
memcpy(bp->dev->perm_addr, bp->dev->dev_addr, ETH_ALEN);
}
Expand Down Expand Up @@ -10232,14 +10289,16 @@ static int bnx2x_test_intr(struct bnx2x *bp)
config->hdr.client_id = bp->fp->cl_id;
config->hdr.reserved1 = 0;

bp->set_mac_pending++;
smp_wmb();
rc = bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_SET_MAC, 0,
U64_HI(bnx2x_sp_mapping(bp, mac_config)),
U64_LO(bnx2x_sp_mapping(bp, mac_config)), 0);
if (rc == 0) {
bp->set_mac_pending++;
for (i = 0; i < 10; i++) {
if (!bp->set_mac_pending)
break;
smp_rmb();
msleep_interruptible(10);
}
if (i == 10)
Expand Down Expand Up @@ -11337,6 +11396,9 @@ static void bnx2x_set_rx_mode(struct net_device *dev)
config->hdr.client_id = bp->fp->cl_id;
config->hdr.reserved1 = 0;

bp->set_mac_pending++;
smp_wmb();

bnx2x_sp_post(bp, RAMROD_CMD_ID_ETH_SET_MAC, 0,
U64_HI(bnx2x_sp_mapping(bp, mcast_config)),
U64_LO(bnx2x_sp_mapping(bp, mcast_config)),
Expand Down Expand Up @@ -11386,9 +11448,9 @@ static int bnx2x_change_mac_addr(struct net_device *dev, void *p)
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
if (netif_running(dev)) {
if (CHIP_IS_E1(bp))
bnx2x_set_mac_addr_e1(bp, 1);
bnx2x_set_eth_mac_addr_e1(bp, 1);
else
bnx2x_set_mac_addr_e1h(bp, 1);
bnx2x_set_eth_mac_addr_e1h(bp, 1);
}

return 0;
Expand Down

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