Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-17 09:31:50 +00:00
Code Issues Packages Projects Releases Wiki Activity
fa7250d694
linux/drivers/scsi/qla4xxx/ql4_nx.c
Jon Mason 983bfb5b40 [SCSI] qla4xxx: remove unnecessary read of PCI_CAP_ID_EXP 
The PCIE capability offset is saved during PCI bus walking.  It will
remove an unnecessary search in the PCI configuration space if this
value is referenced instead of reacquiring it.

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Acked-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:59:02 +01:00

3127 lines
85 KiB
C
Raw Blame History

/*
* QLogic iSCSI HBA Driver
* Copyright (c) 2003-2010 QLogic Corporation
*
* See LICENSE.qla4xxx for copyright and licensing details.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/pci.h>
#include <linux/ratelimit.h>
#include "ql4_def.h"
#include "ql4_glbl.h"
#include <asm-generic/io-64-nonatomic-lo-hi.h>
#define MASK(n) DMA_BIT_MASK(n)
#define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff))
#define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff))
#define MS_WIN(addr) (addr & 0x0ffc0000)
#define QLA82XX_PCI_MN_2M (0)
#define QLA82XX_PCI_MS_2M (0x80000)
#define QLA82XX_PCI_OCM0_2M (0xc0000)
#define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800)
#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
/* CRB window related */
#define CRB_BLK(off) ((off >> 20) & 0x3f)
#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
#define CRB_WINDOW_2M (0x130060)
#define CRB_HI(off) ((qla4_8xxx_crb_hub_agt[CRB_BLK(off)] << 20) | \
((off) & 0xf0000))
#define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
#define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
#define CRB_INDIRECT_2M (0x1e0000UL)
static inline void __iomem *
qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host *ha, unsigned long off)
{
if ((off < ha->first_page_group_end) &&
(off >= ha->first_page_group_start))
return (void __iomem *)(ha->nx_pcibase + off);
return NULL;
}
#define MAX_CRB_XFORM 60
static unsigned long crb_addr_xform[MAX_CRB_XFORM];
static int qla4_8xxx_crb_table_initialized;
#define qla4_8xxx_crb_addr_transform(name) \
(crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
static void
qla4_8xxx_crb_addr_transform_setup(void)
{
qla4_8xxx_crb_addr_transform(XDMA);
qla4_8xxx_crb_addr_transform(TIMR);
qla4_8xxx_crb_addr_transform(SRE);
qla4_8xxx_crb_addr_transform(SQN3);
qla4_8xxx_crb_addr_transform(SQN2);
qla4_8xxx_crb_addr_transform(SQN1);
qla4_8xxx_crb_addr_transform(SQN0);
qla4_8xxx_crb_addr_transform(SQS3);
qla4_8xxx_crb_addr_transform(SQS2);
qla4_8xxx_crb_addr_transform(SQS1);
qla4_8xxx_crb_addr_transform(SQS0);
qla4_8xxx_crb_addr_transform(RPMX7);
qla4_8xxx_crb_addr_transform(RPMX6);
qla4_8xxx_crb_addr_transform(RPMX5);
qla4_8xxx_crb_addr_transform(RPMX4);
qla4_8xxx_crb_addr_transform(RPMX3);
qla4_8xxx_crb_addr_transform(RPMX2);
qla4_8xxx_crb_addr_transform(RPMX1);
qla4_8xxx_crb_addr_transform(RPMX0);
qla4_8xxx_crb_addr_transform(ROMUSB);
qla4_8xxx_crb_addr_transform(SN);
qla4_8xxx_crb_addr_transform(QMN);
qla4_8xxx_crb_addr_transform(QMS);
qla4_8xxx_crb_addr_transform(PGNI);
qla4_8xxx_crb_addr_transform(PGND);
qla4_8xxx_crb_addr_transform(PGN3);
qla4_8xxx_crb_addr_transform(PGN2);
qla4_8xxx_crb_addr_transform(PGN1);
qla4_8xxx_crb_addr_transform(PGN0);
qla4_8xxx_crb_addr_transform(PGSI);
qla4_8xxx_crb_addr_transform(PGSD);
qla4_8xxx_crb_addr_transform(PGS3);
qla4_8xxx_crb_addr_transform(PGS2);
qla4_8xxx_crb_addr_transform(PGS1);
qla4_8xxx_crb_addr_transform(PGS0);
qla4_8xxx_crb_addr_transform(PS);
qla4_8xxx_crb_addr_transform(PH);
qla4_8xxx_crb_addr_transform(NIU);
qla4_8xxx_crb_addr_transform(I2Q);
qla4_8xxx_crb_addr_transform(EG);
qla4_8xxx_crb_addr_transform(MN);
qla4_8xxx_crb_addr_transform(MS);
qla4_8xxx_crb_addr_transform(CAS2);
qla4_8xxx_crb_addr_transform(CAS1);
qla4_8xxx_crb_addr_transform(CAS0);
qla4_8xxx_crb_addr_transform(CAM);
qla4_8xxx_crb_addr_transform(C2C1);
qla4_8xxx_crb_addr_transform(C2C0);
qla4_8xxx_crb_addr_transform(SMB);
qla4_8xxx_crb_addr_transform(OCM0);
qla4_8xxx_crb_addr_transform(I2C0);
qla4_8xxx_crb_table_initialized = 1;
}
static struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
{{{0, 0, 0, 0} } }, /* 0: PCI */
{{{1, 0x0100000, 0x0102000, 0x120000}, /* 1: PCIE */
{1, 0x0110000, 0x0120000, 0x130000},
{1, 0x0120000, 0x0122000, 0x124000},
{1, 0x0130000, 0x0132000, 0x126000},
{1, 0x0140000, 0x0142000, 0x128000},
{1, 0x0150000, 0x0152000, 0x12a000},
{1, 0x0160000, 0x0170000, 0x110000},
{1, 0x0170000, 0x0172000, 0x12e000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x01e0000, 0x01e0800, 0x122000},
{0, 0x0000000, 0x0000000, 0x000000} } },
{{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
{{{0, 0, 0, 0} } }, /* 3: */
{{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
{{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE */
{{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU */
{{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM */
{{{1, 0x0800000, 0x0802000, 0x170000}, /* 8: SQM0 */
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x08f0000, 0x08f2000, 0x172000} } },
{{{1, 0x0900000, 0x0902000, 0x174000}, /* 9: SQM1*/
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x09f0000, 0x09f2000, 0x176000} } },
{{{0, 0x0a00000, 0x0a02000, 0x178000}, /* 10: SQM2*/
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x0af0000, 0x0af2000, 0x17a000} } },
{{{0, 0x0b00000, 0x0b02000, 0x17c000}, /* 11: SQM3*/
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
{{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
{{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
{{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
{{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
{{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
{{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
{{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
{{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
{{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
{{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
{{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
{{{0, 0, 0, 0} } }, /* 23: */
{{{0, 0, 0, 0} } }, /* 24: */
{{{0, 0, 0, 0} } }, /* 25: */
{{{0, 0, 0, 0} } }, /* 26: */
{{{0, 0, 0, 0} } }, /* 27: */
{{{0, 0, 0, 0} } }, /* 28: */
{{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
{{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
{{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
{{{0} } }, /* 32: PCI */
{{{1, 0x2100000, 0x2102000, 0x120000}, /* 33: PCIE */
{1, 0x2110000, 0x2120000, 0x130000},
{1, 0x2120000, 0x2122000, 0x124000},
{1, 0x2130000, 0x2132000, 0x126000},
{1, 0x2140000, 0x2142000, 0x128000},
{1, 0x2150000, 0x2152000, 0x12a000},
{1, 0x2160000, 0x2170000, 0x110000},
{1, 0x2170000, 0x2172000, 0x12e000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000},
{0, 0x0000000, 0x0000000, 0x000000} } },
{{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
{{{0} } }, /* 35: */
{{{0} } }, /* 36: */
{{{0} } }, /* 37: */
{{{0} } }, /* 38: */
{{{0} } }, /* 39: */
{{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
{{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
{{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
{{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
{{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
{{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
{{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
{{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
{{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
{{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
{{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
{{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
{{{0} } }, /* 52: */
{{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
{{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
{{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
{{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
{{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
{{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
{{{0} } }, /* 59: I2C0 */
{{{0} } }, /* 60: I2C1 */
{{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */
{{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
{{{1, 0x3f00000, 0x3f01000, 0x168000} } } /* 63: P2NR0 */
};
/*
* top 12 bits of crb internal address (hub, agent)
*/
static unsigned qla4_8xxx_crb_hub_agt[64] = {
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
QLA82XX_HW_CRB_HUB_AGT_ADR_MN,
QLA82XX_HW_CRB_HUB_AGT_ADR_MS,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_SRE,
QLA82XX_HW_CRB_HUB_AGT_ADR_NIU,
QLA82XX_HW_CRB_HUB_AGT_ADR_QMN,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2,
QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4,
QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGND,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI,
QLA82XX_HW_CRB_HUB_AGT_ADR_SN,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_EG,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PS,
QLA82XX_HW_CRB_HUB_AGT_ADR_CAM,
0,
0,
0,
0,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7,
QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q,
QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8,
QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9,
QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_SMB,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0,
QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1,
0,
QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC,
0,
};
/* Device states */
static char *qdev_state[] = {
"Unknown",
"Cold",
"Initializing",
"Ready",
"Need Reset",
"Need Quiescent",
"Failed",
"Quiescent",
};
/*
* In: 'off' is offset from CRB space in 128M pci map
* Out: 'off' is 2M pci map addr
* side effect: lock crb window
*/
static void
qla4_8xxx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off)
{
u32 win_read;
ha->crb_win = CRB_HI(*off);
writel(ha->crb_win,
(void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
/* Read back value to make sure write has gone through before trying
* to use it. */
win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
if (win_read != ha->crb_win) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"%s: Written crbwin (0x%x) != Read crbwin (0x%x),"
" off=0x%lx\n", __func__, ha->crb_win, win_read, *off));
}
*off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
}
void
qla4_8xxx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data)
{
unsigned long flags = 0;
int rv;
rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
BUG_ON(rv == -1);
if (rv == 1) {
write_lock_irqsave(&ha->hw_lock, flags);
qla4_8xxx_crb_win_lock(ha);
qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
}
writel(data, (void __iomem *)off);
if (rv == 1) {
qla4_8xxx_crb_win_unlock(ha);
write_unlock_irqrestore(&ha->hw_lock, flags);
}
}
int
qla4_8xxx_rd_32(struct scsi_qla_host *ha, ulong off)
{
unsigned long flags = 0;
int rv;
u32 data;
rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off);
BUG_ON(rv == -1);
if (rv == 1) {
write_lock_irqsave(&ha->hw_lock, flags);
qla4_8xxx_crb_win_lock(ha);
qla4_8xxx_pci_set_crbwindow_2M(ha, &off);
}
data = readl((void __iomem *)off);
if (rv == 1) {
qla4_8xxx_crb_win_unlock(ha);
write_unlock_irqrestore(&ha->hw_lock, flags);
}
return data;
}
/* Minidump related functions */
static int qla4_8xxx_md_rw_32(struct scsi_qla_host *ha, uint32_t off,
u32 data, uint8_t flag)
{
uint32_t win_read, off_value, rval = QLA_SUCCESS;
off_value = off & 0xFFFF0000;
writel(off_value, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
/* Read back value to make sure write has gone through before trying
* to use it.
*/
win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase));
if (win_read != off_value) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"%s: Written (0x%x) != Read (0x%x), off=0x%x\n",
__func__, off_value, win_read, off));
return QLA_ERROR;
}
off_value = off & 0x0000FFFF;
if (flag)
writel(data, (void __iomem *)(off_value + CRB_INDIRECT_2M +
ha->nx_pcibase));
else
rval = readl((void __iomem *)(off_value + CRB_INDIRECT_2M +
ha->nx_pcibase));
return rval;
}
#define CRB_WIN_LOCK_TIMEOUT 100000000
int qla4_8xxx_crb_win_lock(struct scsi_qla_host *ha)
{
int i;
int done = 0, timeout = 0;
while (!done) {
/* acquire semaphore3 from PCI HW block */
done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
if (done == 1)
break;
if (timeout >= CRB_WIN_LOCK_TIMEOUT)
return -1;
timeout++;
/* Yield CPU */
if (!in_interrupt())
schedule();
else {
for (i = 0; i < 20; i++)
cpu_relax(); /*This a nop instr on i386*/
}
}
qla4_8xxx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num);
return 0;
}
void qla4_8xxx_crb_win_unlock(struct scsi_qla_host *ha)
{
qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
}
#define IDC_LOCK_TIMEOUT 100000000
/**
* qla4_8xxx_idc_lock - hw_lock
* @ha: pointer to adapter structure
*
* General purpose lock used to synchronize access to
* CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc.
**/
int qla4_8xxx_idc_lock(struct scsi_qla_host *ha)
{
int i;
int done = 0, timeout = 0;
while (!done) {
/* acquire semaphore5 from PCI HW block */
done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK));
if (done == 1)
break;
if (timeout >= IDC_LOCK_TIMEOUT)
return -1;
timeout++;
/* Yield CPU */
if (!in_interrupt())
schedule();
else {
for (i = 0; i < 20; i++)
cpu_relax(); /*This a nop instr on i386*/
}
}
return 0;
}
void qla4_8xxx_idc_unlock(struct scsi_qla_host *ha)
{
qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
}
int
qla4_8xxx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off)
{
struct crb_128M_2M_sub_block_map *m;
if (*off >= QLA82XX_CRB_MAX)
return -1;
if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) {
*off = (*off - QLA82XX_PCI_CAMQM) +
QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase;
return 0;
}
if (*off < QLA82XX_PCI_CRBSPACE)
return -1;
*off -= QLA82XX_PCI_CRBSPACE;
/*
* Try direct map
*/
m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)];
if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) {
*off = *off + m->start_2M - m->start_128M + ha->nx_pcibase;
return 0;
}
/*
* Not in direct map, use crb window
*/
return 1;
}
/* PCI Windowing for DDR regions. */
#define QLA82XX_ADDR_IN_RANGE(addr, low, high) \
(((addr) <= (high)) && ((addr) >= (low)))
/*
* check memory access boundary.
* used by test agent. support ddr access only for now
*/
static unsigned long
qla4_8xxx_pci_mem_bound_check(struct scsi_qla_host *ha,
unsigned long long addr, int size)
{
if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX) ||
!QLA82XX_ADDR_IN_RANGE(addr + size - 1,
QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) ||
((size != 1) && (size != 2) && (size != 4) && (size != 8))) {
return 0;
}
return 1;
}
static int qla4_8xxx_pci_set_window_warning_count;
static unsigned long
qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr)
{
int window;
u32 win_read;
if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX)) {
/* DDR network side */
window = MN_WIN(addr);
ha->ddr_mn_window = window;
qla4_8xxx_wr_32(ha, ha->mn_win_crb |
QLA82XX_PCI_CRBSPACE, window);
win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
QLA82XX_PCI_CRBSPACE);
if ((win_read << 17) != window) {
ql4_printk(KERN_WARNING, ha,
"%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n",
__func__, window, win_read);
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET;
} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
QLA82XX_ADDR_OCM0_MAX)) {
unsigned int temp1;
/* if bits 19:18&17:11 are on */
if ((addr & 0x00ff800) == 0xff800) {
printk("%s: QM access not handled.\n", __func__);
addr = -1UL;
}
window = OCM_WIN(addr);
ha->ddr_mn_window = window;
qla4_8xxx_wr_32(ha, ha->mn_win_crb |
QLA82XX_PCI_CRBSPACE, window);
win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb |
QLA82XX_PCI_CRBSPACE);
temp1 = ((window & 0x1FF) << 7) |
((window & 0x0FFFE0000) >> 17);
if (win_read != temp1) {
printk("%s: Written OCMwin (0x%x) != Read"
" OCMwin (0x%x)\n", __func__, temp1, win_read);
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M;
} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
QLA82XX_P3_ADDR_QDR_NET_MAX)) {
/* QDR network side */
window = MS_WIN(addr);
ha->qdr_sn_window = window;
qla4_8xxx_wr_32(ha, ha->ms_win_crb |
QLA82XX_PCI_CRBSPACE, window);
win_read = qla4_8xxx_rd_32(ha,
ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
if (win_read != window) {
printk("%s: Written MSwin (0x%x) != Read "
"MSwin (0x%x)\n", __func__, window, win_read);
}
addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET;
} else {
/*
* peg gdb frequently accesses memory that doesn't exist,
* this limits the chit chat so debugging isn't slowed down.
*/
if ((qla4_8xxx_pci_set_window_warning_count++ < 8) ||
(qla4_8xxx_pci_set_window_warning_count%64 == 0)) {
printk("%s: Warning:%s Unknown address range!\n",
__func__, DRIVER_NAME);
}
addr = -1UL;
}
return addr;
}
/* check if address is in the same windows as the previous access */
static int qla4_8xxx_pci_is_same_window(struct scsi_qla_host *ha,
unsigned long long addr)
{
int window;
unsigned long long qdr_max;
qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX)) {
/* DDR network side */
BUG(); /* MN access can not come here */
} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0,
QLA82XX_ADDR_OCM0_MAX)) {
return 1;
} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1,
QLA82XX_ADDR_OCM1_MAX)) {
return 1;
} else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET,
qdr_max)) {
/* QDR network side */
window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f;
if (ha->qdr_sn_window == window)
return 1;
}
return 0;
}
static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha,
u64 off, void *data, int size)
{
unsigned long flags;
void __iomem *addr;
int ret = 0;
u64 start;
void __iomem *mem_ptr = NULL;
unsigned long mem_base;
unsigned long mem_page;
write_lock_irqsave(&ha->hw_lock, flags);
/*
* If attempting to access unknown address or straddle hw windows,
* do not access.
*/
start = qla4_8xxx_pci_set_window(ha, off);
if ((start == -1UL) ||
(qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
write_unlock_irqrestore(&ha->hw_lock, flags);
printk(KERN_ERR"%s out of bound pci memory access. "
"offset is 0x%llx\n", DRIVER_NAME, off);
return -1;
}
addr = qla4_8xxx_pci_base_offsetfset(ha, start);
if (!addr) {
write_unlock_irqrestore(&ha->hw_lock, flags);
mem_base = pci_resource_start(ha->pdev, 0);
mem_page = start & PAGE_MASK;
/* Map two pages whenever user tries to access addresses in two
consecutive pages.
*/
if (mem_page != ((start + size - 1) & PAGE_MASK))
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2);
else
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
if (mem_ptr == NULL) {
*(u8 *)data = 0;
return -1;
}
addr = mem_ptr;
addr += start & (PAGE_SIZE - 1);
write_lock_irqsave(&ha->hw_lock, flags);
}
switch (size) {
case 1:
*(u8 *)data = readb(addr);
break;
case 2:
*(u16 *)data = readw(addr);
break;
case 4:
*(u32 *)data = readl(addr);
break;
case 8:
*(u64 *)data = readq(addr);
break;
default:
ret = -1;
break;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
if (mem_ptr)
iounmap(mem_ptr);
return ret;
}
static int
qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off,
void *data, int size)
{
unsigned long flags;
void __iomem *addr;
int ret = 0;
u64 start;
void __iomem *mem_ptr = NULL;
unsigned long mem_base;
unsigned long mem_page;
write_lock_irqsave(&ha->hw_lock, flags);
/*
* If attempting to access unknown address or straddle hw windows,
* do not access.
*/
start = qla4_8xxx_pci_set_window(ha, off);
if ((start == -1UL) ||
(qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) {
write_unlock_irqrestore(&ha->hw_lock, flags);
printk(KERN_ERR"%s out of bound pci memory access. "
"offset is 0x%llx\n", DRIVER_NAME, off);
return -1;
}
addr = qla4_8xxx_pci_base_offsetfset(ha, start);
if (!addr) {
write_unlock_irqrestore(&ha->hw_lock, flags);
mem_base = pci_resource_start(ha->pdev, 0);
mem_page = start & PAGE_MASK;
/* Map two pages whenever user tries to access addresses in two
consecutive pages.
*/
if (mem_page != ((start + size - 1) & PAGE_MASK))
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2);
else
mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE);
if (mem_ptr == NULL)
return -1;
addr = mem_ptr;
addr += start & (PAGE_SIZE - 1);
write_lock_irqsave(&ha->hw_lock, flags);
}
switch (size) {
case 1:
writeb(*(u8 *)data, addr);
break;
case 2:
writew(*(u16 *)data, addr);
break;
case 4:
writel(*(u32 *)data, addr);
break;
case 8:
writeq(*(u64 *)data, addr);
break;
default:
ret = -1;
break;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
if (mem_ptr)
iounmap(mem_ptr);
return ret;
}
#define MTU_FUDGE_FACTOR 100
static unsigned long
qla4_8xxx_decode_crb_addr(unsigned long addr)
{
int i;
unsigned long base_addr, offset, pci_base;
if (!qla4_8xxx_crb_table_initialized)
qla4_8xxx_crb_addr_transform_setup();
pci_base = ADDR_ERROR;
base_addr = addr & 0xfff00000;
offset = addr & 0x000fffff;
for (i = 0; i < MAX_CRB_XFORM; i++) {
if (crb_addr_xform[i] == base_addr) {
pci_base = i << 20;
break;
}
}
if (pci_base == ADDR_ERROR)
return pci_base;
else
return pci_base + offset;
}
static long rom_max_timeout = 100;
static long qla4_8xxx_rom_lock_timeout = 100;
static int
qla4_8xxx_rom_lock(struct scsi_qla_host *ha)
{
int i;
int done = 0, timeout = 0;
while (!done) {
/* acquire semaphore2 from PCI HW block */
done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
if (done == 1)
break;
if (timeout >= qla4_8xxx_rom_lock_timeout)
return -1;
timeout++;
/* Yield CPU */
if (!in_interrupt())
schedule();
else {
for (i = 0; i < 20; i++)
cpu_relax(); /*This a nop instr on i386*/
}
}
qla4_8xxx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
return 0;
}
static void
qla4_8xxx_rom_unlock(struct scsi_qla_host *ha)
{
qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
}
static int
qla4_8xxx_wait_rom_done(struct scsi_qla_host *ha)
{
long timeout = 0;
long done = 0 ;
while (done == 0) {
done = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
done &= 2;
timeout++;
if (timeout >= rom_max_timeout) {
printk("%s: Timeout reached waiting for rom done",
DRIVER_NAME);
return -1;
}
}
return 0;
}
static int
qla4_8xxx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
{
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
if (qla4_8xxx_wait_rom_done(ha)) {
printk("%s: Error waiting for rom done\n", DRIVER_NAME);
return -1;
}
/* reset abyte_cnt and dummy_byte_cnt */
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
udelay(10);
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
*valp = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
return 0;
}
static int
qla4_8xxx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp)
{
int ret, loops = 0;
while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
udelay(100);
loops++;
}
if (loops >= 50000) {
printk("%s: qla4_8xxx_rom_lock failed\n", DRIVER_NAME);
return -1;
}
ret = qla4_8xxx_do_rom_fast_read(ha, addr, valp);
qla4_8xxx_rom_unlock(ha);
return ret;
}
/**
* This routine does CRB initialize sequence
* to put the ISP into operational state
**/
static int
qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose)
{
int addr, val;
int i ;
struct crb_addr_pair *buf;
unsigned long off;
unsigned offset, n;
struct crb_addr_pair {
long addr;
long data;
};
/* Halt all the indiviual PEGs and other blocks of the ISP */
qla4_8xxx_rom_lock(ha);
/* disable all I2Q */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0);
/* disable all niu interrupts */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
/* disable xge rx/tx */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
/* disable xg1 rx/tx */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
/* disable sideband mac */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00);
/* disable ap0 mac */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00);
/* disable ap1 mac */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00);
/* halt sre */
val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
/* halt epg */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
/* halt timers */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0);
/* halt pegs */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
msleep(5);
/* big hammer */
if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
/* don't reset CAM block on reset */
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
else
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
qla4_8xxx_rom_unlock(ha);
/* Read the signature value from the flash.
* Offset 0: Contain signature (0xcafecafe)
* Offset 4: Offset and number of addr/value pairs
* that present in CRB initialize sequence
*/
if (qla4_8xxx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
qla4_8xxx_rom_fast_read(ha, 4, &n) != 0) {
ql4_printk(KERN_WARNING, ha,
"[ERROR] Reading crb_init area: n: %08x\n", n);
return -1;
}
/* Offset in flash = lower 16 bits
* Number of enteries = upper 16 bits
*/
offset = n & 0xffffU;
n = (n >> 16) & 0xffffU;
/* number of addr/value pair should not exceed 1024 enteries */
if (n >= 1024) {
ql4_printk(KERN_WARNING, ha,
"%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
DRIVER_NAME, __func__, n);
return -1;
}
ql4_printk(KERN_INFO, ha,
"%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n);
buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
if (buf == NULL) {
ql4_printk(KERN_WARNING, ha,
"%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME);
return -1;
}
for (i = 0; i < n; i++) {
if (qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) !=
0) {
kfree(buf);
return -1;
}
buf[i].addr = addr;
buf[i].data = val;
}
for (i = 0; i < n; i++) {
/* Translate internal CRB initialization
* address to PCI bus address
*/
off = qla4_8xxx_decode_crb_addr((unsigned long)buf[i].addr) +
QLA82XX_PCI_CRBSPACE;
/* Not all CRB addr/value pair to be written,
* some of them are skipped
*/
/* skip if LS bit is set*/
if (off & 0x1) {
DEBUG2(ql4_printk(KERN_WARNING, ha,
"Skip CRB init replay for offset = 0x%lx\n", off));
continue;
}
/* skipping cold reboot MAGIC */
if (off == QLA82XX_CAM_RAM(0x1fc))
continue;
/* do not reset PCI */
if (off == (ROMUSB_GLB + 0xbc))
continue;
/* skip core clock, so that firmware can increase the clock */
if (off == (ROMUSB_GLB + 0xc8))
continue;
/* skip the function enable register */
if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION))
continue;
if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2))
continue;
if ((off & 0x0ff00000) == QLA82XX_CRB_SMB)
continue;
if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET)
continue;
if (off == ADDR_ERROR) {
ql4_printk(KERN_WARNING, ha,
"%s: [ERROR] Unknown addr: 0x%08lx\n",
DRIVER_NAME, buf[i].addr);
continue;
}
qla4_8xxx_wr_32(ha, off, buf[i].data);
/* ISP requires much bigger delay to settle down,
* else crb_window returns 0xffffffff
*/
if (off == QLA82XX_ROMUSB_GLB_SW_RESET)
msleep(1000);
/* ISP requires millisec delay between
* successive CRB register updation
*/
msleep(1);
}
kfree(buf);
/* Resetting the data and instruction cache */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
/* Clear all protocol processing engines */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
return 0;
}
static int
qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start)
{
int i, rval = 0;
long size = 0;
long flashaddr, memaddr;
u64 data;
u32 high, low;
flashaddr = memaddr = ha->hw.flt_region_bootload;
size = (image_start - flashaddr) / 8;
DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n",
ha->host_no, __func__, flashaddr, image_start));
for (i = 0; i < size; i++) {
if ((qla4_8xxx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
(qla4_8xxx_rom_fast_read(ha, flashaddr + 4,
(int *)&high))) {
rval = -1;
goto exit_load_from_flash;
}
data = ((u64)high << 32) | low ;
rval = qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8);
if (rval)
goto exit_load_from_flash;
flashaddr += 8;
memaddr += 8;
if (i % 0x1000 == 0)
msleep(1);
}
udelay(100);
read_lock(&ha->hw_lock);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
read_unlock(&ha->hw_lock);
exit_load_from_flash:
return rval;
}
static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start)
{
u32 rst;
qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
if (qla4_8xxx_pinit_from_rom(ha, 0) != QLA_SUCCESS) {
printk(KERN_WARNING "%s: Error during CRB Initialization\n",
__func__);
return QLA_ERROR;
}
udelay(500);
/* at this point, QM is in reset. This could be a problem if there are
* incoming d* transition queue messages. QM/PCIE could wedge.
* To get around this, QM is brought out of reset.
*/
rst = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
/* unreset qm */
rst &= ~(1 << 28);
qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
if (qla4_8xxx_load_from_flash(ha, image_start)) {
printk("%s: Error trying to load fw from flash!\n", __func__);
return QLA_ERROR;
}
return QLA_SUCCESS;
}
int
qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha,
u64 off, void *data, int size)
{
int i, j = 0, k, start, end, loop, sz[2], off0[2];
int shift_amount;
uint32_t temp;
uint64_t off8, val, mem_crb, word[2] = {0, 0};
/*
* If not MN, go check for MS or invalid.
*/
if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
mem_crb = QLA82XX_CRB_QDR_NET;
else {
mem_crb = QLA82XX_CRB_DDR_NET;
if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
return qla4_8xxx_pci_mem_read_direct(ha,
off, data, size);
}
off8 = off & 0xfffffff0;
off0[0] = off & 0xf;
sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]);
shift_amount = 4;
loop = ((off0[0] + size - 1) >> shift_amount) + 1;
off0[1] = 0;
sz[1] = size - sz[0];
for (i = 0; i < loop; i++) {
temp = off8 + (i << shift_amount);
qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
temp = MIU_TA_CTL_ENABLE;
qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
if ((temp & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
printk_ratelimited(KERN_ERR
"%s: failed to read through agent\n",
__func__);
break;
}
start = off0[i] >> 2;
end = (off0[i] + sz[i] - 1) >> 2;
for (k = start; k <= end; k++) {
temp = qla4_8xxx_rd_32(ha,
mem_crb + MIU_TEST_AGT_RDDATA(k));
word[i] |= ((uint64_t)temp << (32 * (k & 1)));
}
}
if (j >= MAX_CTL_CHECK)
return -1;
if ((off0[0] & 7) == 0) {
val = word[0];
} else {
val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) |
((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8));
}
switch (size) {
case 1:
*(uint8_t *)data = val;
break;
case 2:
*(uint16_t *)data = val;
break;
case 4:
*(uint32_t *)data = val;
break;
case 8:
*(uint64_t *)data = val;
break;
}
return 0;
}
int
qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha,
u64 off, void *data, int size)
{
int i, j, ret = 0, loop, sz[2], off0;
int scale, shift_amount, startword;
uint32_t temp;
uint64_t off8, mem_crb, tmpw, word[2] = {0, 0};
/*
* If not MN, go check for MS or invalid.
*/
if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX)
mem_crb = QLA82XX_CRB_QDR_NET;
else {
mem_crb = QLA82XX_CRB_DDR_NET;
if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0)
return qla4_8xxx_pci_mem_write_direct(ha,
off, data, size);
}
off0 = off & 0x7;
sz[0] = (size < (8 - off0)) ? size : (8 - off0);
sz[1] = size - sz[0];
off8 = off & 0xfffffff0;
loop = (((off & 0xf) + size - 1) >> 4) + 1;
shift_amount = 4;
scale = 2;
startword = (off & 0xf)/8;
for (i = 0; i < loop; i++) {
if (qla4_8xxx_pci_mem_read_2M(ha, off8 +
(i << shift_amount), &word[i * scale], 8))
return -1;
}
switch (size) {
case 1:
tmpw = *((uint8_t *)data);
break;
case 2:
tmpw = *((uint16_t *)data);
break;
case 4:
tmpw = *((uint32_t *)data);
break;
case 8:
default:
tmpw = *((uint64_t *)data);
break;
}
if (sz[0] == 8)
word[startword] = tmpw;
else {
word[startword] &=
~((~(~0ULL << (sz[0] * 8))) << (off0 * 8));
word[startword] |= tmpw << (off0 * 8);
}
if (sz[1] != 0) {
word[startword+1] &= ~(~0ULL << (sz[1] * 8));
word[startword+1] |= tmpw >> (sz[0] * 8);
}
for (i = 0; i < loop; i++) {
temp = off8 + (i << shift_amount);
qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
temp = word[i * scale] & 0xffffffff;
qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
temp = (word[i * scale] >> 32) & 0xffffffff;
qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
temp = word[i*scale + 1] & 0xffffffff;
qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO,
temp);
temp = (word[i*scale + 1] >> 32) & 0xffffffff;
qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI,
temp);
temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL);
if ((temp & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
if (printk_ratelimit())
ql4_printk(KERN_ERR, ha,
"%s: failed to read through agent\n",
__func__);
ret = -1;
break;
}
}
return ret;
}
static int qla4_8xxx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val)
{
u32 val = 0;
int retries = 60;
if (!pegtune_val) {
do {
val = qla4_8xxx_rd_32(ha, CRB_CMDPEG_STATE);
if ((val == PHAN_INITIALIZE_COMPLETE) ||
(val == PHAN_INITIALIZE_ACK))
return 0;
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(500);
} while (--retries);
if (!retries) {
pegtune_val = qla4_8xxx_rd_32(ha,
QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
printk(KERN_WARNING "%s: init failed, "
"pegtune_val = %x\n", __func__, pegtune_val);
return -1;
}
}
return 0;
}
static int qla4_8xxx_rcvpeg_ready(struct scsi_qla_host *ha)
{
uint32_t state = 0;
int loops = 0;
/* Window 1 call */
read_lock(&ha->hw_lock);
state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
read_unlock(&ha->hw_lock);
while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) {
udelay(100);
/* Window 1 call */
read_lock(&ha->hw_lock);
state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE);
read_unlock(&ha->hw_lock);
loops++;
}
if (loops >= 30000) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"Receive Peg initialization not complete: 0x%x.\n", state));
return QLA_ERROR;
}
return QLA_SUCCESS;
}
void
qla4_8xxx_set_drv_active(struct scsi_qla_host *ha)
{
uint32_t drv_active;
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active |= (1 << (ha->func_num * 4));
ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
__func__, ha->host_no, drv_active);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
void
qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha)
{
uint32_t drv_active;
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active &= ~(1 << (ha->func_num * 4));
ql4_printk(KERN_INFO, ha, "%s(%ld): drv_active: 0x%08x\n",
__func__, ha->host_no, drv_active);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
static inline int
qla4_8xxx_need_reset(struct scsi_qla_host *ha)
{
uint32_t drv_state, drv_active;
int rval;
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
rval = drv_state & (1 << (ha->func_num * 4));
if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active)
rval = 1;
return rval;
}
static inline void
qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha)
{
uint32_t drv_state;
drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_state |= (1 << (ha->func_num * 4));
ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
__func__, ha->host_no, drv_state);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
static inline void
qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha)
{
uint32_t drv_state;
drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_state &= ~(1 << (ha->func_num * 4));
ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state: 0x%08x\n",
__func__, ha->host_no, drv_state);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
static inline void
qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
{
uint32_t qsnt_state;
qsnt_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
qsnt_state |= (2 << (ha->func_num * 4));
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
}
static int
qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
{
int pcie_cap;
uint16_t lnk;
/* scrub dma mask expansion register */
qla4_8xxx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555);
/* Overwrite stale initialization register values */
qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0);
qla4_8xxx_wr_32(ha, CRB_RCVPEG_STATE, 0);
qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
if (qla4_8xxx_load_fw(ha, image_start) != QLA_SUCCESS) {
printk("%s: Error trying to start fw!\n", __func__);
return QLA_ERROR;
}
/* Handshake with the card before we register the devices. */
if (qla4_8xxx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) {
printk("%s: Error during card handshake!\n", __func__);
return QLA_ERROR;
}
/* Negotiated Link width */
pcie_cap = pci_pcie_cap(ha->pdev);
pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
ha->link_width = (lnk >> 4) & 0x3f;
/* Synchronize with Receive peg */
return qla4_8xxx_rcvpeg_ready(ha);
}
static int
qla4_8xxx_try_start_fw(struct scsi_qla_host *ha)
{
int rval = QLA_ERROR;
/*
* FW Load priority:
* 1) Operational firmware residing in flash.
* 2) Fail
*/
ql4_printk(KERN_INFO, ha,
"FW: Retrieving flash offsets from FLT/FDT ...\n");
rval = qla4_8xxx_get_flash_info(ha);
if (rval != QLA_SUCCESS)
return rval;
ql4_printk(KERN_INFO, ha,
"FW: Attempting to load firmware from flash...\n");
rval = qla4_8xxx_start_firmware(ha, ha->hw.flt_region_fw);
if (rval != QLA_SUCCESS) {
ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash"
" FAILED...\n");
return rval;
}
return rval;
}
static void qla4_8xxx_rom_lock_recovery(struct scsi_qla_host *ha)
{
if (qla4_8xxx_rom_lock(ha)) {
/* Someone else is holding the lock. */
dev_info(&ha->pdev->dev, "Resetting rom_lock\n");
}
/*
* Either we got the lock, or someone
* else died while holding it.
* In either case, unlock.
*/
qla4_8xxx_rom_unlock(ha);
}
static void qla4_8xxx_minidump_process_rdcrb(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla82xx_minidump_entry_crb *crb_hdr;
uint32_t *data_ptr = *d_ptr;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
crb_hdr = (struct qla82xx_minidump_entry_crb *)entry_hdr;
r_addr = crb_hdr->addr;
r_stride = crb_hdr->crb_strd.addr_stride;
loop_cnt = crb_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_addr);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += r_stride;
}
*d_ptr = data_ptr;
}
static int qla4_8xxx_minidump_process_l2tag(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
unsigned long p_wait, w_time, p_mask;
uint32_t c_value_w, c_value_r;
struct qla82xx_minidump_entry_cache *cache_hdr;
int rval = QLA_ERROR;
uint32_t *data_ptr = *d_ptr;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
p_wait = cache_hdr->cache_ctrl.poll_wait;
p_mask = cache_hdr->cache_ctrl.poll_mask;
for (i = 0; i < loop_count; i++) {
qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
if (c_value_w)
qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
if (p_mask) {
w_time = jiffies + p_wait;
do {
c_value_r = qla4_8xxx_md_rw_32(ha, c_addr,
0, 0);
if ((c_value_r & p_mask) == 0) {
break;
} else if (time_after_eq(jiffies, w_time)) {
/* capturing dump failed */
return rval;
}
} while (1);
}
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
static int qla4_8xxx_minidump_process_control(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr)
{
struct qla82xx_minidump_entry_crb *crb_entry;
uint32_t read_value, opcode, poll_time, addr, index, rval = QLA_SUCCESS;
uint32_t crb_addr;
unsigned long wtime;
struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
int i;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
ha->fw_dump_tmplt_hdr;
crb_entry = (struct qla82xx_minidump_entry_crb *)entry_hdr;
crb_addr = crb_entry->addr;
for (i = 0; i < crb_entry->op_count; i++) {
opcode = crb_entry->crb_ctrl.opcode;
if (opcode & QLA82XX_DBG_OPCODE_WR) {
qla4_8xxx_md_rw_32(ha, crb_addr,
crb_entry->value_1, 1);
opcode &= ~QLA82XX_DBG_OPCODE_WR;
}
if (opcode & QLA82XX_DBG_OPCODE_RW) {
read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
opcode &= ~QLA82XX_DBG_OPCODE_RW;
}
if (opcode & QLA82XX_DBG_OPCODE_AND) {
read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
read_value &= crb_entry->value_2;
opcode &= ~QLA82XX_DBG_OPCODE_AND;
if (opcode & QLA82XX_DBG_OPCODE_OR) {
read_value |= crb_entry->value_3;
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
}
if (opcode & QLA82XX_DBG_OPCODE_OR) {
read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
read_value |= crb_entry->value_3;
qla4_8xxx_md_rw_32(ha, crb_addr, read_value, 1);
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
if (opcode & QLA82XX_DBG_OPCODE_POLL) {
poll_time = crb_entry->crb_strd.poll_timeout;
wtime = jiffies + poll_time;
read_value = qla4_8xxx_md_rw_32(ha, crb_addr, 0, 0);
do {
if ((read_value & crb_entry->value_2) ==
crb_entry->value_1)
break;
else if (time_after_eq(jiffies, wtime)) {
/* capturing dump failed */
rval = QLA_ERROR;
break;
} else
read_value = qla4_8xxx_md_rw_32(ha,
crb_addr, 0, 0);
} while (1);
opcode &= ~QLA82XX_DBG_OPCODE_POLL;
}
if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else {
addr = crb_addr;
}
read_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
index = crb_entry->crb_ctrl.state_index_v;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else {
addr = crb_addr;
}
if (crb_entry->crb_ctrl.state_index_v) {
index = crb_entry->crb_ctrl.state_index_v;
read_value =
tmplt_hdr->saved_state_array[index];
} else {
read_value = crb_entry->value_1;
}
qla4_8xxx_md_rw_32(ha, addr, read_value, 1);
opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
index = crb_entry->crb_ctrl.state_index_v;
read_value = tmplt_hdr->saved_state_array[index];
read_value <<= crb_entry->crb_ctrl.shl;
read_value >>= crb_entry->crb_ctrl.shr;
if (crb_entry->value_2)
read_value &= crb_entry->value_2;
read_value |= crb_entry->value_3;
read_value += crb_entry->value_1;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
}
crb_addr += crb_entry->crb_strd.addr_stride;
}
DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s\n", __func__));
return rval;
}
static void qla4_8xxx_minidump_process_rdocm(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla82xx_minidump_entry_rdocm *ocm_hdr;
uint32_t *data_ptr = *d_ptr;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
ocm_hdr = (struct qla82xx_minidump_entry_rdocm *)entry_hdr;
r_addr = ocm_hdr->read_addr;
r_stride = ocm_hdr->read_addr_stride;
loop_cnt = ocm_hdr->op_count;
DEBUG2(ql4_printk(KERN_INFO, ha,
"[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
__func__, r_addr, r_stride, loop_cnt));
for (i = 0; i < loop_cnt; i++) {
r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
*data_ptr++ = cpu_to_le32(r_value);
r_addr += r_stride;
}
DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%lx\n",
__func__, (loop_cnt * sizeof(uint32_t))));
*d_ptr = data_ptr;
}
static void qla4_8xxx_minidump_process_rdmux(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
struct qla82xx_minidump_entry_mux *mux_hdr;
uint32_t *data_ptr = *d_ptr;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
mux_hdr = (struct qla82xx_minidump_entry_mux *)entry_hdr;
r_addr = mux_hdr->read_addr;
s_addr = mux_hdr->select_addr;
s_stride = mux_hdr->select_value_stride;
s_value = mux_hdr->select_value;
loop_cnt = mux_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla4_8xxx_md_rw_32(ha, s_addr, s_value, 1);
r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
*data_ptr++ = cpu_to_le32(s_value);
*data_ptr++ = cpu_to_le32(r_value);
s_value += s_stride;
}
*d_ptr = data_ptr;
}
static void qla4_8xxx_minidump_process_l1cache(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
uint32_t c_value_w;
struct qla82xx_minidump_entry_cache *cache_hdr;
uint32_t *data_ptr = *d_ptr;
cache_hdr = (struct qla82xx_minidump_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
for (i = 0; i < loop_count; i++) {
qla4_8xxx_md_rw_32(ha, t_r_addr, t_value, 1);
qla4_8xxx_md_rw_32(ha, c_addr, c_value_w, 1);
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
r_value = qla4_8xxx_md_rw_32(ha, addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
}
static void qla4_8xxx_minidump_process_queue(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t s_addr, r_addr;
uint32_t r_stride, r_value, r_cnt, qid = 0;
uint32_t i, k, loop_cnt;
struct qla82xx_minidump_entry_queue *q_hdr;
uint32_t *data_ptr = *d_ptr;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
q_hdr = (struct qla82xx_minidump_entry_queue *)entry_hdr;
s_addr = q_hdr->select_addr;
r_cnt = q_hdr->rd_strd.read_addr_cnt;
r_stride = q_hdr->rd_strd.read_addr_stride;
loop_cnt = q_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla4_8xxx_md_rw_32(ha, s_addr, qid, 1);
r_addr = q_hdr->read_addr;
for (k = 0; k < r_cnt; k++) {
r_value = qla4_8xxx_md_rw_32(ha, r_addr, 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += r_stride;
}
qid += q_hdr->q_strd.queue_id_stride;
}
*d_ptr = data_ptr;
}
#define MD_DIRECT_ROM_WINDOW 0x42110030
#define MD_DIRECT_ROM_READ_BASE 0x42150000
static void qla4_8xxx_minidump_process_rdrom(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, r_value;
uint32_t i, loop_cnt;
struct qla82xx_minidump_entry_rdrom *rom_hdr;
uint32_t *data_ptr = *d_ptr;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
rom_hdr = (struct qla82xx_minidump_entry_rdrom *)entry_hdr;
r_addr = rom_hdr->read_addr;
loop_cnt = rom_hdr->read_data_size/sizeof(uint32_t);
DEBUG2(ql4_printk(KERN_INFO, ha,
"[%s]: flash_addr: 0x%x, read_data_size: 0x%x\n",
__func__, r_addr, loop_cnt));
for (i = 0; i < loop_cnt; i++) {
qla4_8xxx_md_rw_32(ha, MD_DIRECT_ROM_WINDOW,
(r_addr & 0xFFFF0000), 1);
r_value = qla4_8xxx_md_rw_32(ha,
MD_DIRECT_ROM_READ_BASE +
(r_addr & 0x0000FFFF), 0, 0);
*data_ptr++ = cpu_to_le32(r_value);
r_addr += sizeof(uint32_t);
}
*d_ptr = data_ptr;
}
#define MD_MIU_TEST_AGT_CTRL 0x41000090
#define MD_MIU_TEST_AGT_ADDR_LO 0x41000094
#define MD_MIU_TEST_AGT_ADDR_HI 0x41000098
static int qla4_8xxx_minidump_process_rdmem(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, r_value, r_data;
uint32_t i, j, loop_cnt;
struct qla82xx_minidump_entry_rdmem *m_hdr;
unsigned long flags;
uint32_t *data_ptr = *d_ptr;
DEBUG2(ql4_printk(KERN_INFO, ha, "Entering fn: %s\n", __func__));
m_hdr = (struct qla82xx_minidump_entry_rdmem *)entry_hdr;
r_addr = m_hdr->read_addr;
loop_cnt = m_hdr->read_data_size/16;
DEBUG2(ql4_printk(KERN_INFO, ha,
"[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
__func__, r_addr, m_hdr->read_data_size));
if (r_addr & 0xf) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"[%s]: Read addr 0x%x not 16 bytes alligned\n",
__func__, r_addr));
return QLA_ERROR;
}
if (m_hdr->read_data_size % 16) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"[%s]: Read data[0x%x] not multiple of 16 bytes\n",
__func__, m_hdr->read_data_size));
return QLA_ERROR;
}
DEBUG2(ql4_printk(KERN_INFO, ha,
"[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
__func__, r_addr, m_hdr->read_data_size, loop_cnt));
write_lock_irqsave(&ha->hw_lock, flags);
for (i = 0; i < loop_cnt; i++) {
qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_LO, r_addr, 1);
r_value = 0;
qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_ADDR_HI, r_value, 1);
r_value = MIU_TA_CTL_ENABLE;
qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
r_value = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL, r_value, 1);
for (j = 0; j < MAX_CTL_CHECK; j++) {
r_value = qla4_8xxx_md_rw_32(ha, MD_MIU_TEST_AGT_CTRL,
0, 0);
if ((r_value & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
printk_ratelimited(KERN_ERR
"%s: failed to read through agent\n",
__func__);
write_unlock_irqrestore(&ha->hw_lock, flags);
return QLA_SUCCESS;
}
for (j = 0; j < 4; j++) {
r_data = qla4_8xxx_md_rw_32(ha,
MD_MIU_TEST_AGT_RDDATA[j],
0, 0);
*data_ptr++ = cpu_to_le32(r_data);
}
r_addr += 16;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s datacount: 0x%x\n",
__func__, (loop_cnt * 16)));
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
static void ql4_8xxx_mark_entry_skipped(struct scsi_qla_host *ha,
struct qla82xx_minidump_entry_hdr *entry_hdr,
int index)
{
entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
DEBUG2(ql4_printk(KERN_INFO, ha,
"scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
ha->host_no, index, entry_hdr->entry_type,
entry_hdr->d_ctrl.entry_capture_mask));
}
/**
* qla82xx_collect_md_data - Retrieve firmware minidump data.
* @ha: pointer to adapter structure
**/
static int qla4_8xxx_collect_md_data(struct scsi_qla_host *ha)
{
int num_entry_hdr = 0;
struct qla82xx_minidump_entry_hdr *entry_hdr;
struct qla4_8xxx_minidump_template_hdr *tmplt_hdr;
uint32_t *data_ptr;
uint32_t data_collected = 0;
int i, rval = QLA_ERROR;
uint64_t now;
uint32_t timestamp;
if (!ha->fw_dump) {
ql4_printk(KERN_INFO, ha, "%s(%ld) No buffer to dump\n",
__func__, ha->host_no);
return rval;
}
tmplt_hdr = (struct qla4_8xxx_minidump_template_hdr *)
ha->fw_dump_tmplt_hdr;
data_ptr = (uint32_t *)((uint8_t *)ha->fw_dump +
ha->fw_dump_tmplt_size);
data_collected += ha->fw_dump_tmplt_size;
num_entry_hdr = tmplt_hdr->num_of_entries;
ql4_printk(KERN_INFO, ha, "[%s]: starting data ptr: %p\n",
__func__, data_ptr);
ql4_printk(KERN_INFO, ha,
"[%s]: no of entry headers in Template: 0x%x\n",
__func__, num_entry_hdr);
ql4_printk(KERN_INFO, ha, "[%s]: Capture Mask obtained: 0x%x\n",
__func__, ha->fw_dump_capture_mask);
ql4_printk(KERN_INFO, ha, "[%s]: Total_data_size 0x%x, %d obtained\n",
__func__, ha->fw_dump_size, ha->fw_dump_size);
/* Update current timestamp before taking dump */
now = get_jiffies_64();
timestamp = (u32)(jiffies_to_msecs(now) / 1000);
tmplt_hdr->driver_timestamp = timestamp;
entry_hdr = (struct qla82xx_minidump_entry_hdr *)
(((uint8_t *)ha->fw_dump_tmplt_hdr) +
tmplt_hdr->first_entry_offset);
/* Walk through the entry headers - validate/perform required action */
for (i = 0; i < num_entry_hdr; i++) {
if (data_collected >= ha->fw_dump_size) {
ql4_printk(KERN_INFO, ha,
"Data collected: [0x%x], Total Dump size: [0x%x]\n",
data_collected, ha->fw_dump_size);
return rval;
}
if (!(entry_hdr->d_ctrl.entry_capture_mask &
ha->fw_dump_capture_mask)) {
entry_hdr->d_ctrl.driver_flags |=
QLA82XX_DBG_SKIPPED_FLAG;
goto skip_nxt_entry;
}
DEBUG2(ql4_printk(KERN_INFO, ha,
"Data collected: [0x%x], Dump size left:[0x%x]\n",
data_collected,
(ha->fw_dump_size - data_collected)));
/* Decode the entry type and take required action to capture
* debug data
*/
switch (entry_hdr->entry_type) {
case QLA82XX_RDEND:
ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
break;
case QLA82XX_CNTRL:
rval = qla4_8xxx_minidump_process_control(ha,
entry_hdr);
if (rval != QLA_SUCCESS) {
ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
goto md_failed;
}
break;
case QLA82XX_RDCRB:
qla4_8xxx_minidump_process_rdcrb(ha, entry_hdr,
&data_ptr);
break;
case QLA82XX_RDMEM:
rval = qla4_8xxx_minidump_process_rdmem(ha, entry_hdr,
&data_ptr);
if (rval != QLA_SUCCESS) {
ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
goto md_failed;
}
break;
case QLA82XX_BOARD:
case QLA82XX_RDROM:
qla4_8xxx_minidump_process_rdrom(ha, entry_hdr,
&data_ptr);
break;
case QLA82XX_L2DTG:
case QLA82XX_L2ITG:
case QLA82XX_L2DAT:
case QLA82XX_L2INS:
rval = qla4_8xxx_minidump_process_l2tag(ha, entry_hdr,
&data_ptr);
if (rval != QLA_SUCCESS) {
ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
goto md_failed;
}
break;
case QLA82XX_L1DAT:
case QLA82XX_L1INS:
qla4_8xxx_minidump_process_l1cache(ha, entry_hdr,
&data_ptr);
break;
case QLA82XX_RDOCM:
qla4_8xxx_minidump_process_rdocm(ha, entry_hdr,
&data_ptr);
break;
case QLA82XX_RDMUX:
qla4_8xxx_minidump_process_rdmux(ha, entry_hdr,
&data_ptr);
break;
case QLA82XX_QUEUE:
qla4_8xxx_minidump_process_queue(ha, entry_hdr,
&data_ptr);
break;
case QLA82XX_RDNOP:
default:
ql4_8xxx_mark_entry_skipped(ha, entry_hdr, i);
break;
}
data_collected = (uint8_t *)data_ptr -
((uint8_t *)((uint8_t *)ha->fw_dump +
ha->fw_dump_tmplt_size));
skip_nxt_entry:
/* next entry in the template */
entry_hdr = (struct qla82xx_minidump_entry_hdr *)
(((uint8_t *)entry_hdr) +
entry_hdr->entry_size);
}
if ((data_collected + ha->fw_dump_tmplt_size) != ha->fw_dump_size) {
ql4_printk(KERN_INFO, ha,
"Dump data mismatch: Data collected: [0x%x], total_data_size:[0x%x]\n",
data_collected, ha->fw_dump_size);
goto md_failed;
}
DEBUG2(ql4_printk(KERN_INFO, ha, "Leaving fn: %s Last entry: 0x%x\n",
__func__, i));
md_failed:
return rval;
}
/**
* qla4_8xxx_uevent_emit - Send uevent when the firmware dump is ready.
* @ha: pointer to adapter structure
**/
static void qla4_8xxx_uevent_emit(struct scsi_qla_host *ha, u32 code)
{
char event_string[40];
char *envp[] = { event_string, NULL };
switch (code) {
case QL4_UEVENT_CODE_FW_DUMP:
snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld",
ha->host_no);
break;
default:
/*do nothing*/
break;
}
kobject_uevent_env(&(&ha->pdev->dev)->kobj, KOBJ_CHANGE, envp);
}
/**
* qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw
* @ha: pointer to adapter structure
*
* Note: IDC lock must be held upon entry
**/
static int
qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha)
{
int rval = QLA_ERROR;
int i, timeout;
uint32_t old_count, count;
int need_reset = 0, peg_stuck = 1;
need_reset = qla4_8xxx_need_reset(ha);
old_count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
for (i = 0; i < 10; i++) {
timeout = msleep_interruptible(200);
if (timeout) {
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_FAILED);
return rval;
}
count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
if (count != old_count)
peg_stuck = 0;
}
if (need_reset) {
/* We are trying to perform a recovery here. */
if (peg_stuck)
qla4_8xxx_rom_lock_recovery(ha);
goto dev_initialize;
} else {
/* Start of day for this ha context. */
if (peg_stuck) {
/* Either we are the first or recovery in progress. */
qla4_8xxx_rom_lock_recovery(ha);
goto dev_initialize;
} else {
/* Firmware already running. */
rval = QLA_SUCCESS;
goto dev_ready;
}
}
dev_initialize:
/* set to DEV_INITIALIZING */
ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
/* Driver that sets device state to initializating sets IDC version */
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
qla4_8xxx_idc_unlock(ha);
if (ql4xenablemd && test_bit(AF_FW_RECOVERY, &ha->flags) &&
!test_and_set_bit(AF_82XX_FW_DUMPED, &ha->flags)) {
if (!qla4_8xxx_collect_md_data(ha)) {
qla4_8xxx_uevent_emit(ha, QL4_UEVENT_CODE_FW_DUMP);
} else {
ql4_printk(KERN_INFO, ha, "Unable to collect minidump\n");
clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
}
}
rval = qla4_8xxx_try_start_fw(ha);
qla4_8xxx_idc_lock(ha);
if (rval != QLA_SUCCESS) {
ql4_printk(KERN_INFO, ha, "HW State: FAILED\n");
qla4_8xxx_clear_drv_active(ha);
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
return rval;
}
dev_ready:
ql4_printk(KERN_INFO, ha, "HW State: READY\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
return rval;
}
/**
* qla4_8xxx_need_reset_handler - Code to start reset sequence
* @ha: pointer to adapter structure
*
* Note: IDC lock must be held upon entry
**/
static void
qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha)
{
uint32_t dev_state, drv_state, drv_active;
uint32_t active_mask = 0xFFFFFFFF;
unsigned long reset_timeout;
ql4_printk(KERN_INFO, ha,
"Performing ISP error recovery\n");
if (test_and_clear_bit(AF_ONLINE, &ha->flags)) {
qla4_8xxx_idc_unlock(ha);
ha->isp_ops->disable_intrs(ha);
qla4_8xxx_idc_lock(ha);
}
if (!test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"%s(%ld): reset acknowledged\n",
__func__, ha->host_no));
qla4_8xxx_set_rst_ready(ha);
} else {
active_mask = (~(1 << (ha->func_num * 4)));
}
/* wait for 10 seconds for reset ack from all functions */
reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
ql4_printk(KERN_INFO, ha,
"%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
__func__, ha->host_no, drv_state, drv_active);
while (drv_state != (drv_active & active_mask)) {
if (time_after_eq(jiffies, reset_timeout)) {
ql4_printk(KERN_INFO, ha,
"%s: RESET TIMEOUT! drv_state: 0x%08x, drv_active: 0x%08x\n",
DRIVER_NAME, drv_state, drv_active);
break;
}
/*
* When reset_owner times out, check which functions
* acked/did not ack
*/
if (test_bit(AF_82XX_RST_OWNER, &ha->flags)) {
ql4_printk(KERN_INFO, ha,
"%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n",
__func__, ha->host_no, drv_state,
drv_active);
}
qla4_8xxx_idc_unlock(ha);
msleep(1000);
qla4_8xxx_idc_lock(ha);
drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
}
/* Clear RESET OWNER as we are not going to use it any further */
clear_bit(AF_82XX_RST_OWNER, &ha->flags);
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n", dev_state,
dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown");
/* Force to DEV_COLD unless someone else is starting a reset */
if (dev_state != QLA82XX_DEV_INITIALIZING) {
ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
qla4_8xxx_set_rst_ready(ha);
}
}
/**
* qla4_8xxx_need_qsnt_handler - Code to start qsnt
* @ha: pointer to adapter structure
**/
void
qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha)
{
qla4_8xxx_idc_lock(ha);
qla4_8xxx_set_qsnt_ready(ha);
qla4_8xxx_idc_unlock(ha);
}
/**
* qla4_8xxx_device_state_handler - Adapter state machine
* @ha: pointer to host adapter structure.
*
* Note: IDC lock must be UNLOCKED upon entry
**/
int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
{
uint32_t dev_state;
int rval = QLA_SUCCESS;
unsigned long dev_init_timeout;
if (!test_bit(AF_INIT_DONE, &ha->flags)) {
qla4_8xxx_idc_lock(ha);
qla4_8xxx_set_drv_active(ha);
qla4_8xxx_idc_unlock(ha);
}
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
DEBUG2(ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
dev_state, dev_state < MAX_STATES ?
qdev_state[dev_state] : "Unknown"));
/* wait for 30 seconds for device to go ready */
dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
qla4_8xxx_idc_lock(ha);
while (1) {
if (time_after_eq(jiffies, dev_init_timeout)) {
ql4_printk(KERN_WARNING, ha,
"%s: Device Init Failed 0x%x = %s\n",
DRIVER_NAME,
dev_state, dev_state < MAX_STATES ?
qdev_state[dev_state] : "Unknown");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_FAILED);
}
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
ql4_printk(KERN_INFO, ha, "Device state is 0x%x = %s\n",
dev_state, dev_state < MAX_STATES ?
qdev_state[dev_state] : "Unknown");
/* NOTE: Make sure idc unlocked upon exit of switch statement */
switch (dev_state) {
case QLA82XX_DEV_READY:
goto exit;
case QLA82XX_DEV_COLD:
rval = qla4_8xxx_device_bootstrap(ha);
goto exit;
case QLA82XX_DEV_INITIALIZING:
qla4_8xxx_idc_unlock(ha);
msleep(1000);
qla4_8xxx_idc_lock(ha);
break;
case QLA82XX_DEV_NEED_RESET:
if (!ql4xdontresethba) {
qla4_8xxx_need_reset_handler(ha);
/* Update timeout value after need
* reset handler */
dev_init_timeout = jiffies +
(ha->nx_dev_init_timeout * HZ);
} else {
qla4_8xxx_idc_unlock(ha);
msleep(1000);
qla4_8xxx_idc_lock(ha);
}
break;
case QLA82XX_DEV_NEED_QUIESCENT:
/* idc locked/unlocked in handler */
qla4_8xxx_need_qsnt_handler(ha);
break;
case QLA82XX_DEV_QUIESCENT:
qla4_8xxx_idc_unlock(ha);
msleep(1000);
qla4_8xxx_idc_lock(ha);
break;
case QLA82XX_DEV_FAILED:
qla4_8xxx_idc_unlock(ha);
qla4xxx_dead_adapter_cleanup(ha);
rval = QLA_ERROR;
qla4_8xxx_idc_lock(ha);
goto exit;
default:
qla4_8xxx_idc_unlock(ha);
qla4xxx_dead_adapter_cleanup(ha);
rval = QLA_ERROR;
qla4_8xxx_idc_lock(ha);
goto exit;
}
}
exit:
qla4_8xxx_idc_unlock(ha);
return rval;
}
int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
{
int retval;
/* clear the interrupt */
writel(0, &ha->qla4_8xxx_reg->host_int);
readl(&ha->qla4_8xxx_reg->host_int);
retval = qla4_8xxx_device_state_handler(ha);
if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags))
retval = qla4xxx_request_irqs(ha);
return retval;
}
/*****************************************************************************/
/* Flash Manipulation Routines */
/*****************************************************************************/
#define OPTROM_BURST_SIZE 0x1000
#define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4)
#define FARX_DATA_FLAG BIT_31
#define FARX_ACCESS_FLASH_CONF 0x7FFD0000
#define FARX_ACCESS_FLASH_DATA 0x7FF00000
static inline uint32_t
flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
{
return hw->flash_conf_off | faddr;
}
static inline uint32_t
flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr)
{
return hw->flash_data_off | faddr;
}
static uint32_t *
qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr,
uint32_t faddr, uint32_t length)
{
uint32_t i;
uint32_t val;
int loops = 0;
while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) {
udelay(100);
cond_resched();
loops++;
}
if (loops >= 50000) {
ql4_printk(KERN_WARNING, ha, "ROM lock failed\n");
return dwptr;
}
/* Dword reads to flash. */
for (i = 0; i < length/4; i++, faddr += 4) {
if (qla4_8xxx_do_rom_fast_read(ha, faddr, &val)) {
ql4_printk(KERN_WARNING, ha,
"Do ROM fast read failed\n");
goto done_read;
}
dwptr[i] = __constant_cpu_to_le32(val);
}
done_read:
qla4_8xxx_rom_unlock(ha);
return dwptr;
}
/**
* Address and length are byte address
**/
static uint8_t *
qla4_8xxx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf,
uint32_t offset, uint32_t length)
{
qla4_8xxx_read_flash_data(ha, (uint32_t *)buf, offset, length);
return buf;
}
static int
qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start)
{
const char *loc, *locations[] = { "DEF", "PCI" };
/*
* FLT-location structure resides after the last PCI region.
*/
/* Begin with sane defaults. */
loc = locations[0];
*start = FA_FLASH_LAYOUT_ADDR_82;
DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start));
return QLA_SUCCESS;
}
static void
qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr)
{
const char *loc, *locations[] = { "DEF", "FLT" };
uint16_t *wptr;
uint16_t cnt, chksum;
uint32_t start;
struct qla_flt_header *flt;
struct qla_flt_region *region;
struct ql82xx_hw_data *hw = &ha->hw;
hw->flt_region_flt = flt_addr;
wptr = (uint16_t *)ha->request_ring;
flt = (struct qla_flt_header *)ha->request_ring;
region = (struct qla_flt_region *)&flt[1];
qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
flt_addr << 2, OPTROM_BURST_SIZE);
if (*wptr == __constant_cpu_to_le16(0xffff))
goto no_flash_data;
if (flt->version != __constant_cpu_to_le16(1)) {
DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: "
"version=0x%x length=0x%x checksum=0x%x.\n",
le16_to_cpu(flt->version), le16_to_cpu(flt->length),
le16_to_cpu(flt->checksum)));
goto no_flash_data;
}
cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1;
for (chksum = 0; cnt; cnt--)
chksum += le16_to_cpu(*wptr++);
if (chksum) {
DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: "
"version=0x%x length=0x%x checksum=0x%x.\n",
le16_to_cpu(flt->version), le16_to_cpu(flt->length),
chksum));
goto no_flash_data;
}
loc = locations[1];
cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region);
for ( ; cnt; cnt--, region++) {
/* Store addresses as DWORD offsets. */
start = le32_to_cpu(region->start) >> 2;
DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x "
"end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start,
le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size)));
switch (le32_to_cpu(region->code) & 0xff) {
case FLT_REG_FDT:
hw->flt_region_fdt = start;
break;
case FLT_REG_BOOT_CODE_82:
hw->flt_region_boot = start;
break;
case FLT_REG_FW_82:
case FLT_REG_FW_82_1:
hw->flt_region_fw = start;
break;
case FLT_REG_BOOTLOAD_82:
hw->flt_region_bootload = start;
break;
case FLT_REG_ISCSI_PARAM:
hw->flt_iscsi_param = start;
break;
case FLT_REG_ISCSI_CHAP:
hw->flt_region_chap = start;
hw->flt_chap_size = le32_to_cpu(region->size);
break;
}
}
goto done;
no_flash_data:
/* Use hardcoded defaults. */
loc = locations[0];
hw->flt_region_fdt = FA_FLASH_DESCR_ADDR_82;
hw->flt_region_boot = FA_BOOT_CODE_ADDR_82;
hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82;
hw->flt_region_fw = FA_RISC_CODE_ADDR_82;
hw->flt_region_chap = FA_FLASH_ISCSI_CHAP;
hw->flt_chap_size = FA_FLASH_CHAP_SIZE;
done:
DEBUG2(ql4_printk(KERN_INFO, ha, "FLT[%s]: flt=0x%x fdt=0x%x "
"boot=0x%x bootload=0x%x fw=0x%x\n", loc, hw->flt_region_flt,
hw->flt_region_fdt, hw->flt_region_boot, hw->flt_region_bootload,
hw->flt_region_fw));
}
static void
qla4_8xxx_get_fdt_info(struct scsi_qla_host *ha)
{
#define FLASH_BLK_SIZE_4K 0x1000
#define FLASH_BLK_SIZE_32K 0x8000
#define FLASH_BLK_SIZE_64K 0x10000
const char *loc, *locations[] = { "MID", "FDT" };
uint16_t cnt, chksum;
uint16_t *wptr;
struct qla_fdt_layout *fdt;
uint16_t mid = 0;
uint16_t fid = 0;
struct ql82xx_hw_data *hw = &ha->hw;
hw->flash_conf_off = FARX_ACCESS_FLASH_CONF;
hw->flash_data_off = FARX_ACCESS_FLASH_DATA;
wptr = (uint16_t *)ha->request_ring;
fdt = (struct qla_fdt_layout *)ha->request_ring;
qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
hw->flt_region_fdt << 2, OPTROM_BURST_SIZE);
if (*wptr == __constant_cpu_to_le16(0xffff))
goto no_flash_data;
if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' ||
fdt->sig[3] != 'D')
goto no_flash_data;
for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1;
cnt++)
chksum += le16_to_cpu(*wptr++);
if (chksum) {
DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: "
"checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0],
le16_to_cpu(fdt->version)));
goto no_flash_data;
}
loc = locations[1];
mid = le16_to_cpu(fdt->man_id);
fid = le16_to_cpu(fdt->id);
hw->fdt_wrt_disable = fdt->wrt_disable_bits;
hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd);
hw->fdt_block_size = le32_to_cpu(fdt->block_size);
if (fdt->unprotect_sec_cmd) {
hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 |
fdt->unprotect_sec_cmd);
hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ?
flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) :
flash_conf_addr(hw, 0x0336);
}
goto done;
no_flash_data:
loc = locations[0];
hw->fdt_block_size = FLASH_BLK_SIZE_64K;
done:
DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x "
"pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd,
hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable,
hw->fdt_block_size));
}
static void
qla4_8xxx_get_idc_param(struct scsi_qla_host *ha)
{
#define QLA82XX_IDC_PARAM_ADDR 0x003e885c
uint32_t *wptr;
if (!is_qla8022(ha))
return;
wptr = (uint32_t *)ha->request_ring;
qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring,
QLA82XX_IDC_PARAM_ADDR , 8);
if (*wptr == __constant_cpu_to_le32(0xffffffff)) {
ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT;
ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT;
} else {
ha->nx_dev_init_timeout = le32_to_cpu(*wptr++);
ha->nx_reset_timeout = le32_to_cpu(*wptr);
}
DEBUG2(ql4_printk(KERN_DEBUG, ha,
"ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout));
DEBUG2(ql4_printk(KERN_DEBUG, ha,
"ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout));
return;
}
int
qla4_8xxx_get_flash_info(struct scsi_qla_host *ha)
{
int ret;
uint32_t flt_addr;
ret = qla4_8xxx_find_flt_start(ha, &flt_addr);
if (ret != QLA_SUCCESS)
return ret;
qla4_8xxx_get_flt_info(ha, flt_addr);
qla4_8xxx_get_fdt_info(ha);
qla4_8xxx_get_idc_param(ha);
return QLA_SUCCESS;
}
/**
* qla4_8xxx_stop_firmware - stops firmware on specified adapter instance
* @ha: pointer to host adapter structure.
*
* Remarks:
* For iSCSI, throws away all I/O and AENs into bit bucket, so they will
* not be available after successful return. Driver must cleanup potential
* outstanding I/O's after calling this funcion.
**/
int
qla4_8xxx_stop_firmware(struct scsi_qla_host *ha)
{
int status;
uint32_t mbox_cmd[MBOX_REG_COUNT];
uint32_t mbox_sts[MBOX_REG_COUNT];
memset(&mbox_cmd, 0, sizeof(mbox_cmd));
memset(&mbox_sts, 0, sizeof(mbox_sts));
mbox_cmd[0] = MBOX_CMD_STOP_FW;
status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1,
&mbox_cmd[0], &mbox_sts[0]);
DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no,
__func__, status));
return status;
}
/**
* qla4_8xxx_isp_reset - Resets ISP and aborts all outstanding commands.
* @ha: pointer to host adapter structure.
**/
int
qla4_8xxx_isp_reset(struct scsi_qla_host *ha)
{
int rval;
uint32_t dev_state;
qla4_8xxx_idc_lock(ha);
dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
if (dev_state == QLA82XX_DEV_READY) {
ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_NEED_RESET);
set_bit(AF_82XX_RST_OWNER, &ha->flags);
} else
ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n");
qla4_8xxx_idc_unlock(ha);
rval = qla4_8xxx_device_state_handler(ha);
qla4_8xxx_idc_lock(ha);
qla4_8xxx_clear_rst_ready(ha);
qla4_8xxx_idc_unlock(ha);
if (rval == QLA_SUCCESS) {
ql4_printk(KERN_INFO, ha, "Clearing AF_RECOVERY in qla4_8xxx_isp_reset\n");
clear_bit(AF_FW_RECOVERY, &ha->flags);
}
return rval;
}
/**
* qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number
* @ha: pointer to host adapter structure.
*
**/
int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha)
{
uint32_t mbox_cmd[MBOX_REG_COUNT];
uint32_t mbox_sts[MBOX_REG_COUNT];
struct mbx_sys_info *sys_info;
dma_addr_t sys_info_dma;
int status = QLA_ERROR;
sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
&sys_info_dma, GFP_KERNEL);
if (sys_info == NULL) {
DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
ha->host_no, __func__));
return status;
}
memset(sys_info, 0, sizeof(*sys_info));
memset(&mbox_cmd, 0, sizeof(mbox_cmd));
memset(&mbox_sts, 0, sizeof(mbox_sts));
mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO;
mbox_cmd[1] = LSDW(sys_info_dma);
mbox_cmd[2] = MSDW(sys_info_dma);
mbox_cmd[4] = sizeof(*sys_info);
if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0],
&mbox_sts[0]) != QLA_SUCCESS) {
DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n",
ha->host_no, __func__));
goto exit_validate_mac82;
}
/* Make sure we receive the minimum required data to cache internally */
if (mbox_sts[4] < offsetof(struct mbx_sys_info, reserved)) {
DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive"
" error (%x)\n", ha->host_no, __func__, mbox_sts[4]));
goto exit_validate_mac82;
}
/* Save M.A.C. address & serial_number */
ha->port_num = sys_info->port_num;
memcpy(ha->my_mac, &sys_info->mac_addr[0],
min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr)));
memcpy(ha->serial_number, &sys_info->serial_number,
min(sizeof(ha->serial_number), sizeof(sys_info->serial_number)));
memcpy(ha->model_name, &sys_info->board_id_str,
min(sizeof(ha->model_name), sizeof(sys_info->board_id_str)));
ha->phy_port_cnt = sys_info->phys_port_cnt;
ha->phy_port_num = sys_info->port_num;
ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt;
DEBUG2(printk("scsi%ld: %s: "
"mac %02x:%02x:%02x:%02x:%02x:%02x "
"serial %s\n", ha->host_no, __func__,
ha->my_mac[0], ha->my_mac[1], ha->my_mac[2],
ha->my_mac[3], ha->my_mac[4], ha->my_mac[5],
ha->serial_number));
status = QLA_SUCCESS;
exit_validate_mac82:
dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
sys_info_dma);
return status;
}
/* Interrupt handling helpers. */
static int
qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha)
{
uint32_t mbox_cmd[MBOX_REG_COUNT];
uint32_t mbox_sts[MBOX_REG_COUNT];
DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
memset(&mbox_cmd, 0, sizeof(mbox_cmd));
memset(&mbox_sts, 0, sizeof(mbox_sts));
mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
mbox_cmd[1] = INTR_ENABLE;
if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
&mbox_sts[0]) != QLA_SUCCESS) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
__func__, mbox_sts[0]));
return QLA_ERROR;
}
return QLA_SUCCESS;
}
static int
qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha)
{
uint32_t mbox_cmd[MBOX_REG_COUNT];
uint32_t mbox_sts[MBOX_REG_COUNT];
DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__));
memset(&mbox_cmd, 0, sizeof(mbox_cmd));
memset(&mbox_sts, 0, sizeof(mbox_sts));
mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS;
mbox_cmd[1] = INTR_DISABLE;
if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
&mbox_sts[0]) != QLA_SUCCESS) {
DEBUG2(ql4_printk(KERN_INFO, ha,
"%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n",
__func__, mbox_sts[0]));
return QLA_ERROR;
}
return QLA_SUCCESS;
}
void
qla4_8xxx_enable_intrs(struct scsi_qla_host *ha)
{
qla4_8xxx_mbx_intr_enable(ha);
spin_lock_irq(&ha->hardware_lock);
/* BIT 10 - reset */
qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
spin_unlock_irq(&ha->hardware_lock);
set_bit(AF_INTERRUPTS_ON, &ha->flags);
}
void
qla4_8xxx_disable_intrs(struct scsi_qla_host *ha)
{
if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags))
qla4_8xxx_mbx_intr_disable(ha);
spin_lock_irq(&ha->hardware_lock);
/* BIT 10 - set */
qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
spin_unlock_irq(&ha->hardware_lock);
}
struct ql4_init_msix_entry {
uint16_t entry;
uint16_t index;
const char *name;
irq_handler_t handler;
};
static struct ql4_init_msix_entry qla4_8xxx_msix_entries[QLA_MSIX_ENTRIES] = {
{ QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT,
"qla4xxx (default)",
(irq_handler_t)qla4_8xxx_default_intr_handler },
{ QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q,
"qla4xxx (rsp_q)", (irq_handler_t)qla4_8xxx_msix_rsp_q },
};
void
qla4_8xxx_disable_msix(struct scsi_qla_host *ha)
{
int i;
struct ql4_msix_entry *qentry;
for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
if (qentry->have_irq) {
free_irq(qentry->msix_vector, ha);
DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
__func__, qla4_8xxx_msix_entries[i].name));
}
}
pci_disable_msix(ha->pdev);
clear_bit(AF_MSIX_ENABLED, &ha->flags);
}
int
qla4_8xxx_enable_msix(struct scsi_qla_host *ha)
{
int i, ret;
struct msix_entry entries[QLA_MSIX_ENTRIES];
struct ql4_msix_entry *qentry;
for (i = 0; i < QLA_MSIX_ENTRIES; i++)
entries[i].entry = qla4_8xxx_msix_entries[i].entry;
ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries));
if (ret) {
ql4_printk(KERN_WARNING, ha,
"MSI-X: Failed to enable support -- %d/%d\n",
QLA_MSIX_ENTRIES, ret);
goto msix_out;
}
set_bit(AF_MSIX_ENABLED, &ha->flags);
for (i = 0; i < QLA_MSIX_ENTRIES; i++) {
qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index];
qentry->msix_vector = entries[i].vector;
qentry->msix_entry = entries[i].entry;
qentry->have_irq = 0;
ret = request_irq(qentry->msix_vector,
qla4_8xxx_msix_entries[i].handler, 0,
qla4_8xxx_msix_entries[i].name, ha);
if (ret) {
ql4_printk(KERN_WARNING, ha,
"MSI-X: Unable to register handler -- %x/%d.\n",
qla4_8xxx_msix_entries[i].index, ret);
qla4_8xxx_disable_msix(ha);
goto msix_out;
}
qentry->have_irq = 1;
DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n",
__func__, qla4_8xxx_msix_entries[i].name));
}
msix_out:
return ret;
}
Reference in New Issue View Git Blame Copy Permalink