sata_mv ncq Fix EDMA configuration

[safe/jmp/linux-2.6] / drivers / scsi / megaraid.c

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 9023ec6..4d59ae8 100644 (file)
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -658,7 +658,7 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
                        struct scatterlist *sg;
 
                        sg = scsi_sglist(cmd);
-                       buf = kmap_atomic(sg->page, KM_IRQ0) + sg->offset;
+                       buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
 
                        memset(buf, 0, cmd->cmnd[4]);
                        kunmap_atomic(buf - sg->offset, KM_IRQ0);
@@ -1542,10 +1542,8 @@ mega_cmd_done(adapter_t *adapter, u8 completed[], int nstatus, int status)
                if( cmd->cmnd[0] == INQUIRY && !islogical ) {
 
                        sgl = scsi_sglist(cmd);
-                       if( sgl->page ) {
-                               c = *(unsigned char *)
-                                       page_address((&sgl[0])->page) +
-                                       (&sgl[0])->offset; 
+                       if( sg_page(sgl) ) {
+                               c = *(unsigned char *) sg_virt(&sgl[0]);
                        } else {
                                printk(KERN_WARNING
                                       "megaraid: invalid sg.\n");
@@ -1753,6 +1751,14 @@ mega_build_sglist(adapter_t *adapter, scb_t *scb, u32 *buf, u32 *len)
 
        *len = 0;
 
+       if (scsi_sg_count(cmd) == 1 && !adapter->has_64bit_addr) {
+               sg = scsi_sglist(cmd);
+               scb->dma_h_bulkdata = sg_dma_address(sg);
+               *buf = (u32)scb->dma_h_bulkdata;
+               *len = sg_dma_len(sg);
+               return 0;
+       }
+
        scsi_for_each_sg(cmd, sg, sgcnt, idx) {
                if (adapter->has_64bit_addr) {
                        scb->sgl64[idx].address = sg_dma_address(sg);
@@ -4882,7 +4888,7 @@ __megaraid_shutdown(adapter_t *adapter)
                mdelay(1000);
 }
 
-static void
+static void __devexit
 megaraid_remove_one(struct pci_dev *pdev)
 {
        struct Scsi_Host *host = pci_get_drvdata(pdev);