X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Fmegaraid.c;h=765c24d2bc3842d54da9ffcc214cff782d46eaaa;hb=444ad82bc3eaa554be40d22dc248e58aeefd54d9;hp=3907f6718ede11272e797bc7b6f7d7a1bfc34210;hpb=8269cc4e2b0ddcdcb9e7f2034c464ef8613737a1;p=linux-2.6

diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 3907f6718e..765c24d2bc 100644
--- 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);
@@ -4408,8 +4414,7 @@ mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
 	scmd = &adapter->int_scmd;
 	memset(scmd, 0, sizeof(Scsi_Cmnd));
 
-	sdev = kmalloc(sizeof(struct scsi_device), GFP_KERNEL);
-	memset(sdev, 0, sizeof(struct scsi_device));
+	sdev = kzalloc(sizeof(struct scsi_device), GFP_KERNEL);
 	scmd->device = sdev;
 
 	scmd->device->host = adapter->host;
@@ -4485,6 +4490,7 @@ static struct scsi_host_template megaraid_template = {
 	.sg_tablesize			= MAX_SGLIST,
 	.cmd_per_lun			= DEF_CMD_PER_LUN,
 	.use_clustering			= ENABLE_CLUSTERING,
+	.use_sg_chaining		= ENABLE_SG_CHAINING,
 	.eh_abort_handler		= megaraid_abort,
 	.eh_device_reset_handler	= megaraid_reset,
 	.eh_bus_reset_handler		= megaraid_reset,
@@ -4883,7 +4889,7 @@ __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);