[SCSI] qla2xxx: Re-organized BSG interface specific code.

1. Segregate BSG interface specific code to new files.
2. Handle multiple vendor specific commands indepedently.
3. Reorganised support for reset, management and update FCoE firmware commands.
4. Fixed memory leak issue in Loopback.
5. Added new vendor command to support iiDMA using BSG interface.
6. Proper cleanup of dma mapped and dma allocated buffers for BSG request.

[jejb: fix up conflict and merge in Jiri Slaby lock imbalance patch]
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 44 insertions, 5 deletions

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 42eb7ffd5942..7f3bc45d2e20 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -711,7 +711,7 @@ qla2x00_verify_checksum(scsi_qla_host_t *vha, uint32_t risc_addr)
  * Context:
  *      Kernel context.
  */
-static int
+int
 qla2x00_issue_iocb_timeout(scsi_qla_host_t *vha, void *buffer,
     dma_addr_t phys_addr, size_t size, uint32_t tov)
 {
@@ -2740,6 +2740,48 @@ qla2x00_read_sfp(scsi_qla_host_t *vha, dma_addr_t sfp_dma, uint16_t addr,
 }
 
 int
+qla2x00_get_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id,
+        uint16_t *port_speed, uint16_t *mb)
+{
+        int rval;
+        mbx_cmd_t mc;
+        mbx_cmd_t *mcp = &mc;
+
+        if (!IS_IIDMA_CAPABLE(vha->hw))
+                return QLA_FUNCTION_FAILED;
+
+        DEBUG11(printk("%s(%ld): entered.\n", __func__, vha->host_no));
+
+        mcp->mb[0] = MBC_PORT_PARAMS;
+        mcp->mb[1] = loop_id;
+        mcp->mb[2] = mcp->mb[3] = 0;
+        mcp->mb[9] = vha->vp_idx;
+        mcp->out_mb = MBX_9|MBX_3|MBX_2|MBX_1|MBX_0;
+        mcp->in_mb = MBX_3|MBX_1|MBX_0;
+        mcp->tov = MBX_TOV_SECONDS;
+        mcp->flags = 0;
+        rval = qla2x00_mailbox_command(vha, mcp);
+
+        /* Return mailbox statuses. */
+        if (mb != NULL) {
+                mb[0] = mcp->mb[0];
+                mb[1] = mcp->mb[1];
+                mb[3] = mcp->mb[3];
+        }
+
+        if (rval != QLA_SUCCESS) {
+                DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
+                    vha->host_no, rval));
+        } else {
+                DEBUG11(printk("%s(%ld): done.\n", __func__, vha->host_no));
+                if (port_speed)
+                        *port_speed = mcp->mb[3];
+        }
+
+        return rval;
+}
+
+int
 qla2x00_set_idma_speed(scsi_qla_host_t *vha, uint16_t loop_id,
     uint16_t port_speed, uint16_t *mb)
 {
@@ -3764,8 +3806,7 @@ qla2x00_echo_test(scsi_qla_host_t *vha, struct msg_echo_lb *mreq, uint16_t *mres
         return rval;
 }
 int
-qla84xx_reset_chip(scsi_qla_host_t *ha, uint16_t enable_diagnostic,
-    uint16_t *cmd_status)
+qla84xx_reset_chip(scsi_qla_host_t *ha, uint16_t enable_diagnostic)
 {
         int rval;
         mbx_cmd_t mc;
@@ -3782,8 +3823,6 @@ qla84xx_reset_chip(scsi_qla_host_t *ha, uint16_t enable_diagnostic,
         mcp->flags = MBX_DMA_OUT|MBX_DMA_IN|IOCTL_CMD;
         rval = qla2x00_mailbox_command(ha, mcp);
 
-        /* Return mailbox statuses. */
-        *cmd_status = mcp->mb[0];
         if (rval != QLA_SUCCESS)
                 DEBUG16(printk("%s(%ld): failed=%x.\n", __func__, ha->host_no,
                         rval));