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authorDavid S. Miller <davem@sunset.davemloft.net>2006-06-24 01:00:34 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2006-06-24 02:16:15 -0400
commit3d4253d9afabd6d42c33812a839ba67b8c9bbe49 (patch)
tree3816c3159f32135ff3265cf7e64793bf0ea9b744 /drivers/scsi/qlogicpti.c
parent7bd5ed5dd4f12ba56c99c9b5a8838afbf121f397 (diff)
[SCSI] qlogicpti: Convert to new SBUS device framework.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/scsi/qlogicpti.c')
-rw-r--r--drivers/scsi/qlogicpti.c361
1 files changed, 186 insertions, 175 deletions
diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c
index 2203103adced..329ead263714 100644
--- a/drivers/scsi/qlogicpti.c
+++ b/drivers/scsi/qlogicpti.c
@@ -1,6 +1,6 @@
1/* qlogicpti.c: Performance Technologies QlogicISP sbus card driver. 1/* qlogicpti.c: Performance Technologies QlogicISP sbus card driver.
2 * 2 *
3 * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu) 3 * Copyright (C) 1996, 2006 David S. Miller (davem@davemloft.net)
4 * 4 *
5 * A lot of this driver was directly stolen from Erik H. Moe's PCI 5 * A lot of this driver was directly stolen from Erik H. Moe's PCI
6 * Qlogic ISP driver. Mucho kudos to him for this code. 6 * Qlogic ISP driver. Mucho kudos to him for this code.
@@ -46,8 +46,6 @@
46#include <scsi/scsi_tcq.h> 46#include <scsi/scsi_tcq.h>
47#include <scsi/scsi_host.h> 47#include <scsi/scsi_host.h>
48 48
49
50
51#define MAX_TARGETS 16 49#define MAX_TARGETS 16
52#define MAX_LUNS 8 /* 32 for 1.31 F/W */ 50#define MAX_LUNS 8 /* 32 for 1.31 F/W */
53 51
@@ -57,7 +55,6 @@
57 55
58static struct qlogicpti *qptichain = NULL; 56static struct qlogicpti *qptichain = NULL;
59static DEFINE_SPINLOCK(qptichain_lock); 57static DEFINE_SPINLOCK(qptichain_lock);
60static int qptis_running = 0;
61 58
62#define PACKB(a, b) (((a)<<4)|(b)) 59#define PACKB(a, b) (((a)<<4)|(b))
63 60
@@ -815,173 +812,6 @@ static int __init qpti_map_queues(struct qlogicpti *qpti)
815 return 0; 812 return 0;
816} 813}
817 814
818/* Detect all PTI Qlogic ISP's in the machine. */
819static int __init qlogicpti_detect(struct scsi_host_template *tpnt)
820{
821 struct qlogicpti *qpti;
822 struct Scsi_Host *qpti_host;
823 struct sbus_bus *sbus;
824 struct sbus_dev *sdev;
825 int nqptis = 0, nqptis_in_use = 0;
826
827 tpnt->proc_name = "qlogicpti";
828 for_each_sbus(sbus) {
829 for_each_sbusdev(sdev, sbus) {
830 /* Is this a red snapper? */
831 if (strcmp(sdev->prom_name, "ptisp") &&
832 strcmp(sdev->prom_name, "PTI,ptisp") &&
833 strcmp(sdev->prom_name, "QLGC,isp") &&
834 strcmp(sdev->prom_name, "SUNW,isp"))
835 continue;
836
837 /* Sometimes Antares cards come up not completely
838 * setup, and we get a report of a zero IRQ.
839 * Skip over them in such cases so we survive.
840 */
841 if (sdev->irqs[0] == 0) {
842 printk("qpti%d: Adapter reports no interrupt, "
843 "skipping over this card.", nqptis);
844 continue;
845 }
846
847 /* Yep, register and allocate software state. */
848 qpti_host = scsi_register(tpnt, sizeof(struct qlogicpti));
849 if (!qpti_host) {
850 printk("QPTI: Cannot register PTI Qlogic ISP SCSI host");
851 continue;
852 }
853 qpti = (struct qlogicpti *) qpti_host->hostdata;
854
855 /* We are wide capable, 16 targets. */
856 qpti_host->max_id = MAX_TARGETS;
857
858 /* Setup back pointers and misc. state. */
859 qpti->qhost = qpti_host;
860 qpti->sdev = sdev;
861 qpti->qpti_id = nqptis++;
862 qpti->prom_node = sdev->prom_node;
863 prom_getstring(qpti->prom_node, "name",
864 qpti->prom_name,
865 sizeof(qpti->prom_name));
866
867 /* This is not correct, actually. There's a switch
868 * on the PTI cards that put them into "emulation"
869 * mode- i.e., report themselves as QLGC,isp
870 * instead of PTI,ptisp. The only real substantive
871 * difference between non-pti and pti cards is
872 * the tmon register. Which is possibly even
873 * there for Qlogic cards, but non-functional.
874 */
875 qpti->is_pti = (strcmp (qpti->prom_name, "QLGC,isp") != 0);
876
877 qpti_chain_add(qpti);
878 if (qpti_map_regs(qpti) < 0)
879 goto fail_unlink;
880
881 if (qpti_register_irq(qpti) < 0)
882 goto fail_unmap_regs;
883
884 qpti_get_scsi_id(qpti);
885 qpti_get_bursts(qpti);
886 qpti_get_clock(qpti);
887
888 /* Clear out scsi_cmnd array. */
889 memset(qpti->cmd_slots, 0, sizeof(qpti->cmd_slots));
890
891 if (qpti_map_queues(qpti) < 0)
892 goto fail_free_irq;
893
894 /* Load the firmware. */
895 if (qlogicpti_load_firmware(qpti))
896 goto fail_unmap_queues;
897 if (qpti->is_pti) {
898 /* Check the PTI status reg. */
899 if (qlogicpti_verify_tmon(qpti))
900 goto fail_unmap_queues;
901 }
902
903 /* Reset the ISP and init res/req queues. */
904 if (qlogicpti_reset_hardware(qpti_host))
905 goto fail_unmap_queues;
906
907 printk("(Firmware v%d.%d.%d)", qpti->fware_majrev,
908 qpti->fware_minrev, qpti->fware_micrev);
909 {
910 char buffer[60];
911
912 prom_getstring (qpti->prom_node,
913 "isp-fcode", buffer, 60);
914 if (buffer[0])
915 printk("(Firmware %s)", buffer);
916 if (prom_getbool(qpti->prom_node, "differential"))
917 qpti->differential = 1;
918 }
919
920 printk (" [%s Wide, using %s interface]\n",
921 (qpti->ultra ? "Ultra" : "Fast"),
922 (qpti->differential ? "differential" : "single ended"));
923
924 nqptis_in_use++;
925 continue;
926
927 fail_unmap_queues:
928#define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
929 sbus_free_consistent(qpti->sdev,
930 QSIZE(RES_QUEUE_LEN),
931 qpti->res_cpu, qpti->res_dvma);
932 sbus_free_consistent(qpti->sdev,
933 QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
934 qpti->req_cpu, qpti->req_dvma);
935#undef QSIZE
936 fail_free_irq:
937 free_irq(qpti->irq, qpti);
938
939 fail_unmap_regs:
940 sbus_iounmap(qpti->qregs,
941 qpti->sdev->reg_addrs[0].reg_size);
942 if (qpti->is_pti)
943 sbus_iounmap(qpti->sreg, sizeof(unsigned char));
944 fail_unlink:
945 qpti_chain_del(qpti);
946 scsi_unregister(qpti->qhost);
947 }
948 }
949 if (nqptis)
950 printk("QPTI: Total of %d PTI Qlogic/ISP hosts found, %d actually in use.\n",
951 nqptis, nqptis_in_use);
952 qptis_running = nqptis_in_use;
953 return nqptis;
954}
955
956static int qlogicpti_release(struct Scsi_Host *host)
957{
958 struct qlogicpti *qpti = (struct qlogicpti *) host->hostdata;
959
960 /* Remove visibility from IRQ handlers. */
961 qpti_chain_del(qpti);
962
963 /* Shut up the card. */
964 sbus_writew(0, qpti->qregs + SBUS_CTRL);
965
966 /* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */
967 free_irq(qpti->irq, qpti);
968
969#define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
970 sbus_free_consistent(qpti->sdev,
971 QSIZE(RES_QUEUE_LEN),
972 qpti->res_cpu, qpti->res_dvma);
973 sbus_free_consistent(qpti->sdev,
974 QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
975 qpti->req_cpu, qpti->req_dvma);
976#undef QSIZE
977
978 sbus_iounmap(qpti->qregs, qpti->sdev->reg_addrs[0].reg_size);
979 if (qpti->is_pti)
980 sbus_iounmap(qpti->sreg, sizeof(unsigned char));
981
982 return 0;
983}
984
985const char *qlogicpti_info(struct Scsi_Host *host) 815const char *qlogicpti_info(struct Scsi_Host *host)
986{ 816{
987 static char buf[80]; 817 static char buf[80];
@@ -1551,9 +1381,9 @@ static int qlogicpti_reset(struct scsi_cmnd *Cmnd)
1551 return return_status; 1381 return return_status;
1552} 1382}
1553 1383
1554static struct scsi_host_template driver_template = { 1384static struct scsi_host_template qpti_template = {
1555 .detect = qlogicpti_detect, 1385 .module = THIS_MODULE,
1556 .release = qlogicpti_release, 1386 .name = "qlogicpti",
1557 .info = qlogicpti_info, 1387 .info = qlogicpti_info,
1558 .queuecommand = qlogicpti_queuecommand_slow, 1388 .queuecommand = qlogicpti_queuecommand_slow,
1559 .eh_abort_handler = qlogicpti_abort, 1389 .eh_abort_handler = qlogicpti_abort,
@@ -1565,8 +1395,189 @@ static struct scsi_host_template driver_template = {
1565 .use_clustering = ENABLE_CLUSTERING, 1395 .use_clustering = ENABLE_CLUSTERING,
1566}; 1396};
1567 1397
1398static int __devinit qpti_sbus_probe(struct of_device *dev, const struct of_device_id *match)
1399{
1400 static int nqptis;
1401 struct sbus_dev *sdev = to_sbus_device(&dev->dev);
1402 struct device_node *dp = dev->node;
1403 struct scsi_host_template *tpnt = match->data;
1404 struct Scsi_Host *host;
1405 struct qlogicpti *qpti;
1406 char *fcode;
1407
1408 /* Sometimes Antares cards come up not completely
1409 * setup, and we get a report of a zero IRQ.
1410 */
1411 if (sdev->irqs[0] == 0)
1412 return -ENODEV;
1413
1414 host = scsi_host_alloc(tpnt, sizeof(struct qlogicpti));
1415 if (!host)
1416 return -ENOMEM;
1417
1418 qpti = (struct qlogicpti *) host->hostdata;
1419
1420 host->max_id = MAX_TARGETS;
1421 qpti->qhost = host;
1422 qpti->sdev = sdev;
1423 qpti->qpti_id = nqptis;
1424 qpti->prom_node = sdev->prom_node;
1425 strcpy(qpti->prom_name, sdev->ofdev.node->name);
1426 qpti->is_pti = strcmp(qpti->prom_name, "QLGC,isp");
1427
1428 if (qpti_map_regs(qpti) < 0)
1429 goto fail_unlink;
1430
1431 if (qpti_register_irq(qpti) < 0)
1432 goto fail_unmap_regs;
1433
1434 qpti_get_scsi_id(qpti);
1435 qpti_get_bursts(qpti);
1436 qpti_get_clock(qpti);
1437
1438 /* Clear out scsi_cmnd array. */
1439 memset(qpti->cmd_slots, 0, sizeof(qpti->cmd_slots));
1440
1441 if (qpti_map_queues(qpti) < 0)
1442 goto fail_free_irq;
1443
1444 /* Load the firmware. */
1445 if (qlogicpti_load_firmware(qpti))
1446 goto fail_unmap_queues;
1447 if (qpti->is_pti) {
1448 /* Check the PTI status reg. */
1449 if (qlogicpti_verify_tmon(qpti))
1450 goto fail_unmap_queues;
1451 }
1452
1453 /* Reset the ISP and init res/req queues. */
1454 if (qlogicpti_reset_hardware(host))
1455 goto fail_unmap_queues;
1456
1457 if (scsi_add_host(host, &dev->dev))
1458 goto fail_unmap_queues;
1459
1460 printk("(Firmware v%d.%d.%d)", qpti->fware_majrev,
1461 qpti->fware_minrev, qpti->fware_micrev);
1462
1463 fcode = of_get_property(dp, "isp-fcode", NULL);
1464 if (fcode && fcode[0])
1465 printk("(Firmware %s)", fcode);
1466 if (of_find_property(dp, "differential", NULL) != NULL)
1467 qpti->differential = 1;
1468
1469 printk (" [%s Wide, using %s interface]\n",
1470 (qpti->ultra ? "Ultra" : "Fast"),
1471 (qpti->differential ? "differential" : "single ended"));
1472
1473 dev_set_drvdata(&sdev->ofdev.dev, qpti);
1474
1475 qpti_chain_add(qpti);
1476
1477 scsi_scan_host(host);
1478 nqptis++;
1479
1480 return 0;
1481
1482fail_unmap_queues:
1483#define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
1484 sbus_free_consistent(qpti->sdev,
1485 QSIZE(RES_QUEUE_LEN),
1486 qpti->res_cpu, qpti->res_dvma);
1487 sbus_free_consistent(qpti->sdev,
1488 QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
1489 qpti->req_cpu, qpti->req_dvma);
1490#undef QSIZE
1491
1492fail_unmap_regs:
1493 sbus_iounmap(qpti->qregs,
1494 qpti->sdev->reg_addrs[0].reg_size);
1495 if (qpti->is_pti)
1496 sbus_iounmap(qpti->sreg, sizeof(unsigned char));
1497
1498fail_free_irq:
1499 free_irq(qpti->irq, qpti);
1500
1501fail_unlink:
1502 scsi_host_put(host);
1503
1504 return -ENODEV;
1505}
1506
1507static int __devexit qpti_sbus_remove(struct of_device *dev)
1508{
1509 struct qlogicpti *qpti = dev_get_drvdata(&dev->dev);
1510
1511 qpti_chain_del(qpti);
1512
1513 scsi_remove_host(qpti->qhost);
1514
1515 /* Shut up the card. */
1516 sbus_writew(0, qpti->qregs + SBUS_CTRL);
1517
1518 /* Free IRQ handler and unmap Qlogic,ISP and PTI status regs. */
1519 free_irq(qpti->irq, qpti);
1520
1521#define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
1522 sbus_free_consistent(qpti->sdev,
1523 QSIZE(RES_QUEUE_LEN),
1524 qpti->res_cpu, qpti->res_dvma);
1525 sbus_free_consistent(qpti->sdev,
1526 QSIZE(QLOGICPTI_REQ_QUEUE_LEN),
1527 qpti->req_cpu, qpti->req_dvma);
1528#undef QSIZE
1529
1530 sbus_iounmap(qpti->qregs, qpti->sdev->reg_addrs[0].reg_size);
1531 if (qpti->is_pti)
1532 sbus_iounmap(qpti->sreg, sizeof(unsigned char));
1533
1534 scsi_host_put(qpti->qhost);
1535
1536 return 0;
1537}
1538
1539static struct of_device_id qpti_match[] = {
1540 {
1541 .name = "ptisp",
1542 .data = &qpti_template,
1543 },
1544 {
1545 .name = "PTI,ptisp",
1546 .data = &qpti_template,
1547 },
1548 {
1549 .name = "QLGC,isp",
1550 .data = &qpti_template,
1551 },
1552 {
1553 .name = "SUNW,isp",
1554 .data = &qpti_template,
1555 },
1556 {},
1557};
1558MODULE_DEVICE_TABLE(of, qpti_match);
1559
1560static struct of_platform_driver qpti_sbus_driver = {
1561 .name = "qpti",
1562 .match_table = qpti_match,
1563 .probe = qpti_sbus_probe,
1564 .remove = __devexit_p(qpti_sbus_remove),
1565};
1568 1566
1569#include "scsi_module.c" 1567static int __init qpti_init(void)
1568{
1569 return of_register_driver(&qpti_sbus_driver, &sbus_bus_type);
1570}
1571
1572static void __exit qpti_exit(void)
1573{
1574 of_unregister_driver(&qpti_sbus_driver);
1575}
1570 1576
1577MODULE_DESCRIPTION("QlogicISP SBUS driver");
1578MODULE_AUTHOR("David S. Miller (davem@davemloft.net)");
1571MODULE_LICENSE("GPL"); 1579MODULE_LICENSE("GPL");
1580MODULE_VERSION("2.0");
1572 1581
1582module_init(qpti_init);
1583module_exit(qpti_exit);