Begin support for 64-bit address support and workarounds for newer cards:

	- Add data structuress for doing 64-bit scatter/gather
	- Move busdma tag creations around so that only the parent is
	  created in aac_pci.c.
	- Retrieve the capabilities word from the firmware before setting
	  up command structures and tags. This allows the driver to decide
	  whether to do 64-bit commands, and if work-arounds are needed for
	  systems with >2GB of RAM.
	- Only enable the SCSI passthrough if it's enabled in the capabilities
	  word in the firmware.

This should fix problems with the 2120S and 2200S cards in systems with more
than 2GB of RAM.  Full 64-bit support is forthcoming.

MFC-After:	1 week

1 files changed, 25 insertions, 58 deletions

diff --git a/sys/dev/aac/aac_pci.c b/sys/dev/aac/aac_pci.c
index 85fed9d..8875502 100644
--- a/sys/dev/aac/aac_pci.c
+++ b/sys/dev/aac/aac_pci.c
@@ -92,40 +92,40 @@ struct aac_ident
 	int			quirks;
 	char			*desc;
 } aac_identifiers[] = {
-	{0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x0001, 0x1028, 0x0001, AAC_HWIF_I960RX, 0,
 	"Dell PERC 2/Si"},
-	{0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x0002, 0x1028, 0x0002, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Di"},
-	{0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x0003, 0x1028, 0x0003, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Si"},
-	{0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x0004, 0x1028, 0x00d0, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Si"},
-	{0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x0002, 0x1028, 0x00d1, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Di"},
-	{0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x0002, 0x1028, 0x00d9, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Di"},
-	{0x1028, 0x0008, 0x1028, 0x00cf, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x0008, 0x1028, 0x00cf, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Di"},
-	{0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x000a, 0x1028, 0x0106, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Di"},
-	{0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x000a, 0x1028, 0x011b, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Di"},
-	{0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, AAC_QUIRK_NOCAM,
+	{0x1028, 0x000a, 0x1028, 0x0121, AAC_HWIF_I960RX, 0,
 	"Dell PERC 3/Di"},
-	{0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, AAC_QUIRK_NOCAM,
+	{0x1011, 0x0046, 0x9005, 0x0364, AAC_HWIF_STRONGARM, 0,
 	"Adaptec AAC-364"},
-	{0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, AAC_QUIRK_NOCAM,
+	{0x1011, 0x0046, 0x9005, 0x0365, AAC_HWIF_STRONGARM, 0,
 	 "Adaptec SCSI RAID 5400S"},
-	{0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_QUIRK_NOCAM |
-	 AAC_QUIRK_PERC2QC, "Dell PERC 2/QC"},
-	{0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, AAC_QUIRK_NOCAM,
+	{0x1011, 0x0046, 0x9005, 0x1364, AAC_HWIF_STRONGARM, AAC_FLAGS_PERC2QC,
+	 "Dell PERC 2/QC"},
+	{0x1011, 0x0046, 0x103c, 0x10c2, AAC_HWIF_STRONGARM, 0,
 	 "HP NetRaid-4M"},
-	{0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, 0,
-	 "Adaptec SCSI RAID 2200S"},
-	{0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, 0,
-	 "Dell PERC 320/DC"},
-	{0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, 0,
-	 "Adaptec SCSI RAID 2120S"},
+	{0x9005, 0x0285, 0x9005, 0x0285, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
+	 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2200S"},
+	{0x9005, 0x0285, 0x1028, 0x0287, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
+	 AAC_FLAGS_256FIBS, "Dell PERC 320/DC"},
+	{0x9005, 0x0285, 0x9005, 0x0286, AAC_HWIF_I960RX, AAC_FLAGS_NO4GB |
+	 AAC_FLAGS_256FIBS, "Adaptec SCSI RAID 2120S"},
 	{0, 0, 0, 0, 0, 0, 0}
 };
 
@@ -239,51 +239,18 @@ aac_pci_attach(device_t dev)
 	 */
 	if (bus_dma_tag_create(NULL, 			/* parent */
 			       PAGE_SIZE, 0,		/* algnmnt, boundary */
-			       BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
+			       BUS_SPACE_MAXADDR,	/* lowaddr */
 			       BUS_SPACE_MAXADDR, 	/* highaddr */
 			       NULL, NULL, 		/* filter, filterarg */
-			       MAXBSIZE, 		/* maxsize */
+			       BUS_SPACE_MAXSIZE_32BIT,	/* maxsize */
 			       AAC_MAXSGENTRIES,	/* nsegments */
 			       BUS_SPACE_MAXSIZE_32BIT,	/* maxsegsize */
-			       BUS_DMA_ALLOCNOW,	/* flags */
+			       0,			/* flags */
 			       &sc->aac_parent_dmat)) {
 		device_printf(sc->aac_dev, "can't allocate parent DMA tag\n");
 		goto out;
 	}
 
-	/*
-	 * Create DMA tag for mapping buffers into controller-addressable space.
-	 */
-	if (bus_dma_tag_create(sc->aac_parent_dmat, 	/* parent */
-			   1, 0, 			/* algnmnt, boundary */
-			   BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
-			   BUS_SPACE_MAXADDR, 		/* highaddr */
-			   NULL, NULL, 			/* filter, filterarg */
-			   MAXBSIZE, AAC_MAXSGENTRIES,	/* maxsize, nsegments */
-			   BUS_SPACE_MAXSIZE_32BIT,	/* maxsegsize */
-			   0,				/* flags */
-			   &sc->aac_buffer_dmat)) {
-		device_printf(sc->aac_dev, "can't allocate buffer DMA tag\n");
-		goto out;
-	}
-
-	/*
-	 * Create DMA tag for mapping FIBs into controller-addressable space..
-	 */
-	if (bus_dma_tag_create(sc->aac_parent_dmat,	/* parent */
-			   1, 0, 			/* algnmnt, boundary */
-			   BUS_SPACE_MAXADDR_32BIT,	/* lowaddr */
-			   BUS_SPACE_MAXADDR, 		/* highaddr */
-			   NULL, NULL, 			/* filter, filterarg */
-			   AAC_FIB_COUNT *
-			   sizeof(struct aac_fib), 1,	/* maxsize, nsegments */
-			   BUS_SPACE_MAXSIZE_32BIT,	/* maxsegsize */
-			   0,				/* flags */
-			   &sc->aac_fib_dmat)) {
-		device_printf(sc->aac_dev, "can't allocate FIB DMA tag\n");;
-		goto out;
-	}
-
 	/* 
 	 * Detect the hardware interface version, set up the bus interface
 	 * indirection.
@@ -312,7 +279,7 @@ aac_pci_attach(device_t dev)
 			}
 
 			/* Set up quirks */
-			sc->quirks = aac_identifiers[i].quirks;
+			sc->flags = aac_identifiers[i].quirks;
 
 			break;
 		}