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authorBhanu Gollapudi <bprakash@broadcom.com>2011-03-18 03:13:34 +0300
committerJames Bottomley <James.Bottomley@suse.de>2011-03-23 19:37:04 +0300
commit1294bfe60960c89a0c875cffb90c3bacf1d675d2 (patch)
tree09bdd689df2300ce777e1a5d6b3bccc3119c83e7 /drivers
parent26ce67c3df46a8253e3bbf3eb87cc6782f6a6c91 (diff)
downloadlinux-1294bfe60960c89a0c875cffb90c3bacf1d675d2.tar.xz
[SCSI] bnx2fc: Fix MTU issue by using static MTU
bnx2x now uses seperate MTUs for networking and FCoE. FCoE MTU is fixed to 2500 and bnx2fc now needs to match this logic by using FCOE_MTU instead of netdev->mtu. Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc.h5
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_fcoe.c35
-rw-r--r--drivers/scsi/bnx2fc/bnx2fc_hwi.c2
3 files changed, 6 insertions, 36 deletions
diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index 464d71ea31aa..d869a4ce7eac 100644
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -89,6 +89,10 @@
#define BNX2FC_ELSTM_XIDS BNX2FC_CAN_QUEUE
#define BNX2FC_MIN_PAYLOAD 256
#define BNX2FC_MAX_PAYLOAD 2048
+#define BNX2FC_MFS \
+ (BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header))
+#define BNX2FC_MINI_JUMBO_MTU 2500
+
#define BNX2FC_RQ_BUF_SZ 256
#define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ))
@@ -128,7 +132,6 @@
#define BNX2FC_WAIT_CNT 120
#define BNX2FC_FW_TIMEOUT (3 * HZ)
-
#define PORT_MAX 2
#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 0eec4e092554..aab55e24cb7b 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -661,31 +661,6 @@ static int bnx2fc_shost_config(struct fc_lport *lport, struct device *dev)
return 0;
}
-static int bnx2fc_mfs_update(struct fc_lport *lport)
-{
- struct fcoe_port *port = lport_priv(lport);
- struct bnx2fc_hba *hba = port->priv;
- struct net_device *netdev = hba->netdev;
- u32 mfs;
- u32 max_mfs;
-
- mfs = netdev->mtu - (sizeof(struct fcoe_hdr) +
- sizeof(struct fcoe_crc_eof));
- max_mfs = BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header);
- BNX2FC_HBA_DBG(lport, "mfs = %d, max_mfs = %d\n", mfs, max_mfs);
- if (mfs > max_mfs)
- mfs = max_mfs;
-
- /* Adjust mfs to be a multiple of 256 bytes */
- mfs = (((mfs - sizeof(struct fc_frame_header)) / BNX2FC_MIN_PAYLOAD) *
- BNX2FC_MIN_PAYLOAD);
- mfs = mfs + sizeof(struct fc_frame_header);
-
- BNX2FC_HBA_DBG(lport, "Set MFS = %d\n", mfs);
- if (fc_set_mfs(lport, mfs))
- return -EINVAL;
- return 0;
-}
static void bnx2fc_link_speed_update(struct fc_lport *lport)
{
struct fcoe_port *port = lport_priv(lport);
@@ -754,7 +729,7 @@ static int bnx2fc_net_config(struct fc_lport *lport)
!hba->phys_dev->ethtool_ops->get_pauseparam)
return -EOPNOTSUPP;
- if (bnx2fc_mfs_update(lport))
+ if (fc_set_mfs(lport, BNX2FC_MFS))
return -EINVAL;
skb_queue_head_init(&port->fcoe_pending_queue);
@@ -825,14 +800,6 @@ static void bnx2fc_indicate_netevent(void *context, unsigned long event)
if (!test_bit(ADAPTER_STATE_UP, &hba->adapter_state))
printk(KERN_ERR "indicate_netevent: "\
"adapter is not UP!!\n");
- /* fall thru to update mfs if MTU has changed */
- case NETDEV_CHANGEMTU:
- BNX2FC_HBA_DBG(lport, "NETDEV_CHANGEMTU event\n");
- bnx2fc_mfs_update(lport);
- mutex_lock(&lport->lp_mutex);
- list_for_each_entry(vport, &lport->vports, list)
- bnx2fc_mfs_update(vport);
- mutex_unlock(&lport->lp_mutex);
break;
case NETDEV_DOWN:
diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
index 3de1ce73bdd3..1b680e288c56 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c
@@ -87,7 +87,7 @@ int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba)
fcoe_init1.task_list_pbl_addr_lo = (u32) hba->task_ctx_bd_dma;
fcoe_init1.task_list_pbl_addr_hi =
(u32) ((u64) hba->task_ctx_bd_dma >> 32);
- fcoe_init1.mtu = hba->netdev->mtu;
+ fcoe_init1.mtu = BNX2FC_MINI_JUMBO_MTU;
fcoe_init1.flags = (PAGE_SHIFT <<
FCOE_KWQE_INIT1_LOG_PAGE_SIZE_SHIFT);