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authorVladislav Zolotarov <vladz@broadcom.com>2011-01-31 14:39:17 +0000
committerDavid S. Miller <davem@davemloft.net>2011-01-31 20:44:46 -0800
commit2ba451421b23636c45fabfa522858c5c124b3673 (patch)
treefc576f3ac8a064b50747533522940f05e39f70c1 /drivers/net/bnx2x
parent0c838ff1ade71162775afffd9e5c6478a60bdca6 (diff)
downloadop-kernel-dev-2ba451421b23636c45fabfa522858c5c124b3673.zip
op-kernel-dev-2ba451421b23636c45fabfa522858c5c124b3673.tar.gz
bnx2x, cnic: Consolidate iSCSI/FCoE shared mem logic in bnx2x
Move all shared mem code to bnx2x to avoid code duplication. bnx2x now performs: - Read the FCoE and iSCSI max connection information. - Read the iSCSI and FCoE MACs from NPAR configuration in shmem. - Block the CNIC for the current function if there is neither FCoE nor iSCSI valid configuration by returning NULL from bnx2x_cnic_probe(). Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bnx2x')
-rw-r--r--drivers/net/bnx2x/bnx2x.h5
-rw-r--r--drivers/net/bnx2x/bnx2x_hsi.h25
-rw-r--r--drivers/net/bnx2x/bnx2x_main.c112
3 files changed, 120 insertions, 22 deletions
diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h
index 04fb72b..ff87ec3 100644
--- a/drivers/net/bnx2x/bnx2x.h
+++ b/drivers/net/bnx2x/bnx2x.h
@@ -976,8 +976,12 @@ struct bnx2x {
#define MF_FUNC_DIS 0x1000
#define FCOE_MACS_SET 0x2000
#define NO_FCOE_FLAG 0x4000
+#define NO_ISCSI_OOO_FLAG 0x8000
+#define NO_ISCSI_FLAG 0x10000
#define NO_FCOE(bp) ((bp)->flags & NO_FCOE_FLAG)
+#define NO_ISCSI(bp) ((bp)->flags & NO_ISCSI_FLAG)
+#define NO_ISCSI_OOO(bp) ((bp)->flags & NO_ISCSI_OOO_FLAG)
int pf_num; /* absolute PF number */
int pfid; /* per-path PF number */
@@ -1125,7 +1129,6 @@ struct bnx2x {
u16 cnic_kwq_pending;
u16 cnic_spq_pending;
struct mutex cnic_mutex;
- u8 iscsi_mac[ETH_ALEN];
u8 fip_mac[ETH_ALEN];
#endif
diff --git a/drivers/net/bnx2x/bnx2x_hsi.h b/drivers/net/bnx2x/bnx2x_hsi.h
index 51d69db..be503cc 100644
--- a/drivers/net/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/bnx2x/bnx2x_hsi.h
@@ -11,20 +11,27 @@
#include "bnx2x_fw_defs.h"
+#define FW_ENCODE_32BIT_PATTERN 0x1e1e1e1e
+
struct license_key {
u32 reserved[6];
-#if defined(__BIG_ENDIAN)
- u16 max_iscsi_init_conn;
- u16 max_iscsi_trgt_conn;
-#elif defined(__LITTLE_ENDIAN)
- u16 max_iscsi_trgt_conn;
- u16 max_iscsi_init_conn;
-#endif
+ u32 max_iscsi_conn;
+#define BNX2X_MAX_ISCSI_TRGT_CONN_MASK 0xFFFF
+#define BNX2X_MAX_ISCSI_TRGT_CONN_SHIFT 0
+#define BNX2X_MAX_ISCSI_INIT_CONN_MASK 0xFFFF0000
+#define BNX2X_MAX_ISCSI_INIT_CONN_SHIFT 16
- u32 reserved_a[6];
-};
+ u32 reserved_a;
+
+ u32 max_fcoe_conn;
+#define BNX2X_MAX_FCOE_TRGT_CONN_MASK 0xFFFF
+#define BNX2X_MAX_FCOE_TRGT_CONN_SHIFT 0
+#define BNX2X_MAX_FCOE_INIT_CONN_MASK 0xFFFF0000
+#define BNX2X_MAX_FCOE_INIT_CONN_SHIFT 16
+ u32 reserved_b[4];
+};
#define PORT_0 0
#define PORT_1 1
diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c
index 2215a39..ae8d20a 100644
--- a/drivers/net/bnx2x/bnx2x_main.c
+++ b/drivers/net/bnx2x/bnx2x_main.c
@@ -6456,12 +6456,13 @@ static int bnx2x_set_iscsi_eth_mac_addr(struct bnx2x *bp, int set)
u32 iscsi_l2_cl_id = BNX2X_ISCSI_ETH_CL_ID +
BP_E1HVN(bp) * NONE_ETH_CONTEXT_USE;
u32 cl_bit_vec = (1 << iscsi_l2_cl_id);
+ u8 *iscsi_mac = bp->cnic_eth_dev.iscsi_mac;
/* Send a SET_MAC ramrod */
- bnx2x_set_mac_addr_gen(bp, set, bp->iscsi_mac, cl_bit_vec,
+ bnx2x_set_mac_addr_gen(bp, set, iscsi_mac, cl_bit_vec,
cam_offset, 0);
- bnx2x_set_mac_in_nig(bp, set, bp->iscsi_mac, LLH_CAM_ISCSI_ETH_LINE);
+ bnx2x_set_mac_in_nig(bp, set, iscsi_mac, LLH_CAM_ISCSI_ETH_LINE);
return 0;
}
@@ -8385,11 +8386,47 @@ static void __devinit bnx2x_get_port_hwinfo(struct bnx2x *bp)
bp->common.shmem2_base);
}
+#ifdef BCM_CNIC
+static void __devinit bnx2x_get_cnic_info(struct bnx2x *bp)
+{
+ u32 max_iscsi_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
+ drv_lic_key[BP_PORT(bp)].max_iscsi_conn);
+ u32 max_fcoe_conn = FW_ENCODE_32BIT_PATTERN ^ SHMEM_RD(bp,
+ drv_lic_key[BP_PORT(bp)].max_fcoe_conn);
+
+ /* Get the number of maximum allowed iSCSI and FCoE connections */
+ bp->cnic_eth_dev.max_iscsi_conn =
+ (max_iscsi_conn & BNX2X_MAX_ISCSI_INIT_CONN_MASK) >>
+ BNX2X_MAX_ISCSI_INIT_CONN_SHIFT;
+
+ bp->cnic_eth_dev.max_fcoe_conn =
+ (max_fcoe_conn & BNX2X_MAX_FCOE_INIT_CONN_MASK) >>
+ BNX2X_MAX_FCOE_INIT_CONN_SHIFT;
+
+ BNX2X_DEV_INFO("max_iscsi_conn 0x%x max_fcoe_conn 0x%x\n",
+ bp->cnic_eth_dev.max_iscsi_conn,
+ bp->cnic_eth_dev.max_fcoe_conn);
+
+ /* If mamimum allowed number of connections is zero -
+ * disable the feature.
+ */
+ if (!bp->cnic_eth_dev.max_iscsi_conn)
+ bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
+
+ if (!bp->cnic_eth_dev.max_fcoe_conn)
+ bp->flags |= NO_FCOE_FLAG;
+}
+#endif
+
static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
{
u32 val, val2;
int func = BP_ABS_FUNC(bp);
int port = BP_PORT(bp);
+#ifdef BCM_CNIC
+ u8 *iscsi_mac = bp->cnic_eth_dev.iscsi_mac;
+ u8 *fip_mac = bp->fip_mac;
+#endif
if (BP_NOMCP(bp)) {
BNX2X_ERROR("warning: random MAC workaround active\n");
@@ -8402,7 +8439,9 @@ static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
bnx2x_set_mac_buf(bp->dev->dev_addr, val, val2);
#ifdef BCM_CNIC
- /* iSCSI NPAR MAC */
+ /* iSCSI and FCoE NPAR MACs: if there is no either iSCSI or
+ * FCoE MAC then the appropriate feature should be disabled.
+ */
if (IS_MF_SI(bp)) {
u32 cfg = MF_CFG_RD(bp, func_ext_config[func].func_cfg);
if (cfg & MACP_FUNC_CFG_FLAGS_ISCSI_OFFLOAD) {
@@ -8410,8 +8449,39 @@ static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
iscsi_mac_addr_upper);
val = MF_CFG_RD(bp, func_ext_config[func].
iscsi_mac_addr_lower);
- bnx2x_set_mac_buf(bp->iscsi_mac, val, val2);
- }
+ BNX2X_DEV_INFO("Read iSCSI MAC: "
+ "0x%x:0x%04x\n", val2, val);
+ bnx2x_set_mac_buf(iscsi_mac, val, val2);
+
+ /* Disable iSCSI OOO if MAC configuration is
+ * invalid.
+ */
+ if (!is_valid_ether_addr(iscsi_mac)) {
+ bp->flags |= NO_ISCSI_OOO_FLAG |
+ NO_ISCSI_FLAG;
+ memset(iscsi_mac, 0, ETH_ALEN);
+ }
+ } else
+ bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
+
+ if (cfg & MACP_FUNC_CFG_FLAGS_FCOE_OFFLOAD) {
+ val2 = MF_CFG_RD(bp, func_ext_config[func].
+ fcoe_mac_addr_upper);
+ val = MF_CFG_RD(bp, func_ext_config[func].
+ fcoe_mac_addr_lower);
+ BNX2X_DEV_INFO("Read FCoE MAC to "
+ "0x%x:0x%04x\n", val2, val);
+ bnx2x_set_mac_buf(fip_mac, val, val2);
+
+ /* Disable FCoE if MAC configuration is
+ * invalid.
+ */
+ if (!is_valid_ether_addr(fip_mac)) {
+ bp->flags |= NO_FCOE_FLAG;
+ memset(bp->fip_mac, 0, ETH_ALEN);
+ }
+ } else
+ bp->flags |= NO_FCOE_FLAG;
}
#endif
} else {
@@ -8425,7 +8495,7 @@ static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
iscsi_mac_upper);
val = SHMEM_RD(bp, dev_info.port_hw_config[port].
iscsi_mac_lower);
- bnx2x_set_mac_buf(bp->iscsi_mac, val, val2);
+ bnx2x_set_mac_buf(iscsi_mac, val, val2);
#endif
}
@@ -8433,14 +8503,12 @@ static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)
memcpy(bp->dev->perm_addr, bp->dev->dev_addr, ETH_ALEN);
#ifdef BCM_CNIC
- /* Inform the upper layers about FCoE MAC */
+ /* Set the FCoE MAC in modes other then MF_SI */
if (!CHIP_IS_E1x(bp)) {
if (IS_MF_SD(bp))
- memcpy(bp->fip_mac, bp->dev->dev_addr,
- sizeof(bp->fip_mac));
- else
- memcpy(bp->fip_mac, bp->iscsi_mac,
- sizeof(bp->fip_mac));
+ memcpy(fip_mac, bp->dev->dev_addr, ETH_ALEN);
+ else if (!IS_MF(bp))
+ memcpy(fip_mac, iscsi_mac, ETH_ALEN);
}
#endif
}
@@ -8603,6 +8671,10 @@ static int __devinit bnx2x_get_hwinfo(struct bnx2x *bp)
/* Get MAC addresses */
bnx2x_get_mac_hwinfo(bp);
+#ifdef BCM_CNIC
+ bnx2x_get_cnic_info(bp);
+#endif
+
return rc;
}
@@ -10077,6 +10149,13 @@ struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev)
struct bnx2x *bp = netdev_priv(dev);
struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
+ /* If both iSCSI and FCoE are disabled - return NULL in
+ * order to indicate CNIC that it should not try to work
+ * with this device.
+ */
+ if (NO_ISCSI(bp) && NO_FCOE(bp))
+ return NULL;
+
cp->drv_owner = THIS_MODULE;
cp->chip_id = CHIP_ID(bp);
cp->pdev = bp->pdev;
@@ -10097,6 +10176,15 @@ struct cnic_eth_dev *bnx2x_cnic_probe(struct net_device *dev)
BP_E1HVN(bp) * NONE_ETH_CONTEXT_USE;
cp->iscsi_l2_cid = BNX2X_ISCSI_ETH_CID;
+ if (NO_ISCSI_OOO(bp))
+ cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI_OOO;
+
+ if (NO_ISCSI(bp))
+ cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI;
+
+ if (NO_FCOE(bp))
+ cp->drv_state |= CNIC_DRV_STATE_NO_FCOE;
+
DP(BNX2X_MSG_SP, "page_size %d, tbl_offset %d, tbl_lines %d, "
"starting cid %d\n",
cp->ctx_blk_size,
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