cnic: Support NIC Partition mode

Add a common function cnic_read_bnx2x_iscsi_mac() to read the iSCSI
MAC address at any specified shared memory location.  In NIC Partition
mode, we need to get the MAC address from the MF_CFG area of shared
memory.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/cnic.h b/drivers/net/cnic.h
index 8e947b7e0700..fb3b7531ea25 100644
--- a/drivers/net/cnic.h
+++ b/drivers/net/cnic.h
@@ -422,6 +422,9 @@ struct bnx2x_bd_chain_next {
                  (CNIC_RD(dev, BNX2X_SHMEM2_ADDR(base, size)) > \
                   offsetof(struct shmem2_region, field)))
 
+#define BNX2X_MF_CFG_ADDR(base, field)                          \
+                        ((base) + offsetof(struct mf_cfg, field))
+
 #define CNIC_PORT(cp)                   ((cp)->pfid & 1)
 #define CNIC_FUNC(cp)                   ((cp)->func)
 #define CNIC_PATH(cp)                   (!BNX2X_CHIP_IS_E2(cp->chip_id) ? 0 :\