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10fbb7dd36
linux/drivers/scsi/qla2xxx/qla_nx.c
Giridhar Malavali 10fbb7dd36 [SCSI] qla2xxx: Code cleanup to remove unwanted comments and code. 
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: Lalit Chandivade <lalit.chandivade@qlogic.com>
Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-23 16:02:22 -06:00

3795 lines
96 KiB
C
Raw Blame History

/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2010 QLogic Corporation
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
#include <linux/delay.h>
#include <linux/pci.h>
#define MASK(n) ((1ULL<<(n))-1)
#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))
#define BLOCK_PROTECT_BITS 0x0F
/* CRB window related */
#define CRB_BLK(off) ((off >> 20) & 0x3f)
#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
#define CRB_WINDOW_2M (0x130060)
#define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL)
#define CRB_HI(off) ((qla82xx_crb_hub_agt[CRB_BLK(off)] << 20) | \
((off) & 0xf0000))
#define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL)
#define CRB_INDIRECT_2M (0x1e0000UL)
#define MAX_CRB_XFORM 60
static unsigned long crb_addr_xform[MAX_CRB_XFORM];
int qla82xx_crb_table_initialized;
#define qla82xx_crb_addr_transform(name) \
(crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \
QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20)
static void qla82xx_crb_addr_transform_setup(void)
{
qla82xx_crb_addr_transform(XDMA);
qla82xx_crb_addr_transform(TIMR);
qla82xx_crb_addr_transform(SRE);
qla82xx_crb_addr_transform(SQN3);
qla82xx_crb_addr_transform(SQN2);
qla82xx_crb_addr_transform(SQN1);
qla82xx_crb_addr_transform(SQN0);
qla82xx_crb_addr_transform(SQS3);
qla82xx_crb_addr_transform(SQS2);
qla82xx_crb_addr_transform(SQS1);
qla82xx_crb_addr_transform(SQS0);
qla82xx_crb_addr_transform(RPMX7);
qla82xx_crb_addr_transform(RPMX6);
qla82xx_crb_addr_transform(RPMX5);
qla82xx_crb_addr_transform(RPMX4);
qla82xx_crb_addr_transform(RPMX3);
qla82xx_crb_addr_transform(RPMX2);
qla82xx_crb_addr_transform(RPMX1);
qla82xx_crb_addr_transform(RPMX0);
qla82xx_crb_addr_transform(ROMUSB);
qla82xx_crb_addr_transform(SN);
qla82xx_crb_addr_transform(QMN);
qla82xx_crb_addr_transform(QMS);
qla82xx_crb_addr_transform(PGNI);
qla82xx_crb_addr_transform(PGND);
qla82xx_crb_addr_transform(PGN3);
qla82xx_crb_addr_transform(PGN2);
qla82xx_crb_addr_transform(PGN1);
qla82xx_crb_addr_transform(PGN0);
qla82xx_crb_addr_transform(PGSI);
qla82xx_crb_addr_transform(PGSD);
qla82xx_crb_addr_transform(PGS3);
qla82xx_crb_addr_transform(PGS2);
qla82xx_crb_addr_transform(PGS1);
qla82xx_crb_addr_transform(PGS0);
qla82xx_crb_addr_transform(PS);
qla82xx_crb_addr_transform(PH);
qla82xx_crb_addr_transform(NIU);
qla82xx_crb_addr_transform(I2Q);
qla82xx_crb_addr_transform(EG);
qla82xx_crb_addr_transform(MN);
qla82xx_crb_addr_transform(MS);
qla82xx_crb_addr_transform(CAS2);
qla82xx_crb_addr_transform(CAS1);
qla82xx_crb_addr_transform(CAS0);
qla82xx_crb_addr_transform(CAM);
qla82xx_crb_addr_transform(C2C1);
qla82xx_crb_addr_transform(C2C0);
qla82xx_crb_addr_transform(SMB);
qla82xx_crb_addr_transform(OCM0);
/*
* Used only in P3 just define it for P2 also.
*/
qla82xx_crb_addr_transform(I2C0);
qla82xx_crb_table_initialized = 1;
}
struct crb_128M_2M_block_map crb_128M_2M_map[64] = {
{{{0, 0, 0, 0} } },
{{{1, 0x0100000, 0x0102000, 0x120000},
{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} } },
{{{0, 0, 0, 0} } },
{{{1, 0x0400000, 0x0401000, 0x169000} } },
{{{1, 0x0500000, 0x0510000, 0x140000} } },
{{{1, 0x0600000, 0x0610000, 0x1c0000} } },
{{{1, 0x0700000, 0x0704000, 0x1b8000} } },
{{{1, 0x0800000, 0x0802000, 0x170000},
{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},
{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},
{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},
{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} } },
{{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },
{{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },
{{{1, 0x0f00000, 0x0f01000, 0x164000} } },
{{{0, 0x1000000, 0x1004000, 0x1a8000} } },
{{{1, 0x1100000, 0x1101000, 0x160000} } },
{{{1, 0x1200000, 0x1201000, 0x161000} } },
{{{1, 0x1300000, 0x1301000, 0x162000} } },
{{{1, 0x1400000, 0x1401000, 0x163000} } },
{{{1, 0x1500000, 0x1501000, 0x165000} } },
{{{1, 0x1600000, 0x1601000, 0x166000} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{0, 0, 0, 0} } },
{{{1, 0x1d00000, 0x1d10000, 0x190000} } },
{{{1, 0x1e00000, 0x1e01000, 0x16a000} } },
{{{1, 0x1f00000, 0x1f10000, 0x150000} } },
{{{0} } },
{{{1, 0x2100000, 0x2102000, 0x120000},
{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} } },
{{{0} } },
{{{0} } },
{{{0} } },
{{{0} } },
{{{0} } },
{{{1, 0x2800000, 0x2804000, 0x1a4000} } },
{{{1, 0x2900000, 0x2901000, 0x16b000} } },
{{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },
{{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },
{{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },
{{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },
{{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },
{{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },
{{{1, 0x3000000, 0x3000400, 0x1adc00} } },
{{{0, 0x3100000, 0x3104000, 0x1a8000} } },
{{{1, 0x3200000, 0x3204000, 0x1d4000} } },
{{{1, 0x3300000, 0x3304000, 0x1a0000} } },
{{{0} } },
{{{1, 0x3500000, 0x3500400, 0x1ac000} } },
{{{1, 0x3600000, 0x3600400, 0x1ae000} } },
{{{1, 0x3700000, 0x3700400, 0x1ae400} } },
{{{1, 0x3800000, 0x3804000, 0x1d0000} } },
{{{1, 0x3900000, 0x3904000, 0x1b4000} } },
{{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },
{{{0} } },
{{{0} } },
{{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },
{{{1, 0x3e00000, 0x3e01000, 0x167000} } },
{{{1, 0x3f00000, 0x3f01000, 0x168000} } }
};
/*
* top 12 bits of crb internal address (hub, agent)
*/
unsigned qla82xx_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 */
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
qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
{
u32 win_read;
ha->crb_win = CRB_HI(*off);
writel(ha->crb_win,
(void *)(CRB_WINDOW_2M + ha->nx_pcibase));
/* Read back value to make sure write has gone through before trying
* to use it.
*/
win_read = RD_REG_DWORD((void *)(CRB_WINDOW_2M + ha->nx_pcibase));
if (win_read != ha->crb_win) {
DEBUG2(qla_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;
}
static inline unsigned long
qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
{
/* See if we are currently pointing to the region we want to use next */
if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_DDR_NET)) {
/* No need to change window. PCIX and PCIEregs are in both
* regs are in both windows.
*/
return off;
}
if ((off >= QLA82XX_CRB_PCIX_HOST) && (off < QLA82XX_CRB_PCIX_HOST2)) {
/* We are in first CRB window */
if (ha->curr_window != 0)
WARN_ON(1);
return off;
}
if ((off > QLA82XX_CRB_PCIX_HOST2) && (off < QLA82XX_CRB_MAX)) {
/* We are in second CRB window */
off = off - QLA82XX_CRB_PCIX_HOST2 + QLA82XX_CRB_PCIX_HOST;
if (ha->curr_window != 1)
return off;
/* We are in the QM or direct access
* register region - do nothing
*/
if ((off >= QLA82XX_PCI_DIRECT_CRB) &&
(off < QLA82XX_PCI_CAMQM_MAX))
return off;
}
/* strange address given */
qla_printk(KERN_WARNING, ha,
"%s: Warning: unm_nic_pci_set_crbwindow called with"
" an unknown address(%llx)\n", QLA2XXX_DRIVER_NAME, off);
return off;
}
static int
qla82xx_pci_get_crb_addr_2M(struct qla_hw_data *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;
}
#define CRB_WIN_LOCK_TIMEOUT 100000000
static int qla82xx_crb_win_lock(struct qla_hw_data *ha)
{
int done = 0, timeout = 0;
while (!done) {
/* acquire semaphore3 from PCI HW block */
done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK));
if (done == 1)
break;
if (timeout >= CRB_WIN_LOCK_TIMEOUT)
return -1;
timeout++;
}
qla82xx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->portnum);
return 0;
}
int
qla82xx_wr_32(struct qla_hw_data *ha, ulong off, u32 data)
{
unsigned long flags = 0;
int rv;
rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
BUG_ON(rv == -1);
if (rv == 1) {
write_lock_irqsave(&ha->hw_lock, flags);
qla82xx_crb_win_lock(ha);
qla82xx_pci_set_crbwindow_2M(ha, &off);
}
writel(data, (void __iomem *)off);
if (rv == 1) {
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
write_unlock_irqrestore(&ha->hw_lock, flags);
}
return 0;
}
int
qla82xx_rd_32(struct qla_hw_data *ha, ulong off)
{
unsigned long flags = 0;
int rv;
u32 data;
rv = qla82xx_pci_get_crb_addr_2M(ha, &off);
BUG_ON(rv == -1);
if (rv == 1) {
write_lock_irqsave(&ha->hw_lock, flags);
qla82xx_crb_win_lock(ha);
qla82xx_pci_set_crbwindow_2M(ha, &off);
}
data = RD_REG_DWORD((void __iomem *)off);
if (rv == 1) {
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK));
write_unlock_irqrestore(&ha->hw_lock, flags);
}
return data;
}
#define IDC_LOCK_TIMEOUT 100000000
int qla82xx_idc_lock(struct qla_hw_data *ha)
{
int i;
int done = 0, timeout = 0;
while (!done) {
/* acquire semaphore5 from PCI HW block */
done = qla82xx_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();
}
}
return 0;
}
void qla82xx_idc_unlock(struct qla_hw_data *ha)
{
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK));
}
/* 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
qla82xx_pci_mem_bound_check(struct qla_hw_data *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;
else
return 1;
}
int qla82xx_pci_set_window_warning_count;
static unsigned long
qla82xx_pci_set_window(struct qla_hw_data *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;
qla82xx_wr_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
win_read = qla82xx_rd_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
if ((win_read << 17) != window) {
qla_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 ((addr & 0x00ff800) == 0xff800) {
qla_printk(KERN_WARNING, ha,
"%s: QM access not handled.\n", __func__);
addr = -1UL;
}
window = OCM_WIN(addr);
ha->ddr_mn_window = window;
qla82xx_wr_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window);
win_read = qla82xx_rd_32(ha,
ha->mn_win_crb | QLA82XX_PCI_CRBSPACE);
temp1 = ((window & 0x1FF) << 7) |
((window & 0x0FFFE0000) >> 17);
if (win_read != temp1) {
qla_printk(KERN_WARNING, ha,
"%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;
qla82xx_wr_32(ha,
ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window);
win_read = qla82xx_rd_32(ha,
ha->ms_win_crb | QLA82XX_PCI_CRBSPACE);
if (win_read != window) {
qla_printk(KERN_WARNING, ha,
"%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 ((qla82xx_pci_set_window_warning_count++ < 8) ||
(qla82xx_pci_set_window_warning_count%64 == 0)) {
qla_printk(KERN_WARNING, ha,
"%s: Warning:%s Unknown address range!\n", __func__,
QLA2XXX_DRIVER_NAME);
}
addr = -1UL;
}
return addr;
}
/* check if address is in the same windows as the previous access */
static int qla82xx_pci_is_same_window(struct qla_hw_data *ha,
unsigned long long addr)
{
int window;
unsigned long long qdr_max;
qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX;
/* DDR network side */
if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET,
QLA82XX_ADDR_DDR_NET_MAX))
BUG();
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 qla82xx_pci_mem_read_direct(struct qla_hw_data *ha,
u64 off, void *data, int size)
{
unsigned long flags;
void *addr = NULL;
int ret = 0;
u64 start;
uint8_t *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 = qla82xx_pci_set_window(ha, off);
if ((start == -1UL) ||
(qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
write_unlock_irqrestore(&ha->hw_lock, flags);
qla_printk(KERN_ERR, ha,
"%s out of bound pci memory access. "
"offset is 0x%llx\n", QLA2XXX_DRIVER_NAME, off);
return -1;
}
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 == 0UL) {
*(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
qla82xx_pci_mem_write_direct(struct qla_hw_data *ha,
u64 off, void *data, int size)
{
unsigned long flags;
void *addr = NULL;
int ret = 0;
u64 start;
uint8_t *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 = qla82xx_pci_set_window(ha, off);
if ((start == -1UL) ||
(qla82xx_pci_is_same_window(ha, off + size - 1) == 0)) {
write_unlock_irqrestore(&ha->hw_lock, flags);
qla_printk(KERN_ERR, ha,
"%s out of bound pci memory access. "
"offset is 0x%llx\n", QLA2XXX_DRIVER_NAME, off);
return -1;
}
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 == 0UL)
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
qla82xx_decode_crb_addr(unsigned long addr)
{
int i;
unsigned long base_addr, offset, pci_base;
if (!qla82xx_crb_table_initialized)
qla82xx_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;
return pci_base + offset;
}
static long rom_max_timeout = 100;
static long qla82xx_rom_lock_timeout = 100;
static int
qla82xx_rom_lock(struct qla_hw_data *ha)
{
int done = 0, timeout = 0;
while (!done) {
/* acquire semaphore2 from PCI HW block */
done = qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK));
if (done == 1)
break;
if (timeout >= qla82xx_rom_lock_timeout)
return -1;
timeout++;
}
qla82xx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER);
return 0;
}
static int
qla82xx_wait_rom_busy(struct qla_hw_data *ha)
{
long timeout = 0;
long done = 0 ;
while (done == 0) {
done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
done &= 4;
timeout++;
if (timeout >= rom_max_timeout) {
DEBUG(qla_printk(KERN_INFO, ha,
"%s: Timeout reached waiting for rom busy",
QLA2XXX_DRIVER_NAME));
return -1;
}
}
return 0;
}
static int
qla82xx_wait_rom_done(struct qla_hw_data *ha)
{
long timeout = 0;
long done = 0 ;
while (done == 0) {
done = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS);
done &= 2;
timeout++;
if (timeout >= rom_max_timeout) {
DEBUG(qla_printk(KERN_INFO, ha,
"%s: Timeout reached waiting for rom done",
QLA2XXX_DRIVER_NAME));
return -1;
}
}
return 0;
}
static int
qla82xx_do_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
{
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb);
qla82xx_wait_rom_busy(ha);
if (qla82xx_wait_rom_done(ha)) {
qla_printk(KERN_WARNING, ha,
"%s: Error waiting for rom done\n",
QLA2XXX_DRIVER_NAME);
return -1;
}
/* Reset abyte_cnt and dummy_byte_cnt */
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0);
udelay(10);
cond_resched();
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
*valp = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
return 0;
}
static int
qla82xx_rom_fast_read(struct qla_hw_data *ha, int addr, int *valp)
{
int ret, loops = 0;
while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
udelay(100);
schedule();
loops++;
}
if (loops >= 50000) {
qla_printk(KERN_INFO, ha,
"%s: qla82xx_rom_lock failed\n",
QLA2XXX_DRIVER_NAME);
return -1;
}
ret = qla82xx_do_rom_fast_read(ha, addr, valp);
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
return ret;
}
static int
qla82xx_read_status_reg(struct qla_hw_data *ha, uint32_t *val)
{
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_RDSR);
qla82xx_wait_rom_busy(ha);
if (qla82xx_wait_rom_done(ha)) {
qla_printk(KERN_WARNING, ha,
"Error waiting for rom done\n");
return -1;
}
*val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA);
return 0;
}
static int
qla82xx_flash_wait_write_finish(struct qla_hw_data *ha)
{
long timeout = 0;
uint32_t done = 1 ;
uint32_t val;
int ret = 0;
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
while ((done != 0) && (ret == 0)) {
ret = qla82xx_read_status_reg(ha, &val);
done = val & 1;
timeout++;
udelay(10);
cond_resched();
if (timeout >= 50000) {
qla_printk(KERN_WARNING, ha,
"Timeout reached waiting for write finish");
return -1;
}
}
return ret;
}
static int
qla82xx_flash_set_write_enable(struct qla_hw_data *ha)
{
uint32_t val;
qla82xx_wait_rom_busy(ha);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WREN);
qla82xx_wait_rom_busy(ha);
if (qla82xx_wait_rom_done(ha))
return -1;
if (qla82xx_read_status_reg(ha, &val) != 0)
return -1;
if ((val & 2) != 2)
return -1;
return 0;
}
static int
qla82xx_write_status_reg(struct qla_hw_data *ha, uint32_t val)
{
if (qla82xx_flash_set_write_enable(ha))
return -1;
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, val);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0x1);
if (qla82xx_wait_rom_done(ha)) {
qla_printk(KERN_WARNING, ha,
"Error waiting for rom done\n");
return -1;
}
return qla82xx_flash_wait_write_finish(ha);
}
static int
qla82xx_write_disable_flash(struct qla_hw_data *ha)
{
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_WRDI);
if (qla82xx_wait_rom_done(ha)) {
qla_printk(KERN_WARNING, ha,
"Error waiting for rom done\n");
return -1;
}
return 0;
}
static int
ql82xx_rom_lock_d(struct qla_hw_data *ha)
{
int loops = 0;
while ((qla82xx_rom_lock(ha) != 0) && (loops < 50000)) {
udelay(100);
cond_resched();
loops++;
}
if (loops >= 50000) {
qla_printk(KERN_WARNING, ha, "ROM lock failed\n");
return -1;
}
return 0;;
}
static int
qla82xx_write_flash_dword(struct qla_hw_data *ha, uint32_t flashaddr,
uint32_t data)
{
int ret = 0;
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
return ret;
}
if (qla82xx_flash_set_write_enable(ha))
goto done_write;
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_WDATA, data);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, flashaddr);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_PP);
qla82xx_wait_rom_busy(ha);
if (qla82xx_wait_rom_done(ha)) {
qla_printk(KERN_WARNING, ha,
"Error waiting for rom done\n");
ret = -1;
goto done_write;
}
ret = qla82xx_flash_wait_write_finish(ha);
done_write:
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
return ret;
}
/* This routine does CRB initialize sequence
* to put the ISP into operational state
*/
static int
qla82xx_pinit_from_rom(scsi_qla_host_t *vha)
{
int addr, val;
int i ;
struct crb_addr_pair *buf;
unsigned long off;
unsigned offset, n;
struct qla_hw_data *ha = vha->hw;
struct crb_addr_pair {
long addr;
long data;
};
/* Halt all the indiviual PEGs and other blocks of the ISP */
qla82xx_rom_lock(ha);
/* mask all niu interrupts */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff);
/* disable xge rx/tx */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00);
/* disable xg1 rx/tx */
qla82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00);
/* halt sre */
val = qla82xx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000);
qla82xx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1)));
/* halt epg */
qla82xx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1);
/* halt timers */
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0);
qla82xx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0);
/* halt pegs */
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1);
/* big hammer */
msleep(1000);
if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
/* don't reset CAM block on reset */
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff);
else
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff);
/* reset ms */
val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
val |= (1 << 1);
qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
msleep(20);
/* unreset ms */
val = qla82xx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4);
val &= ~(1 << 1);
qla82xx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val);
msleep(20);
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
/* 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 (qla82xx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL ||
qla82xx_rom_fast_read(ha, 4, &n) != 0) {
qla_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) {
qla_printk(KERN_WARNING, ha,
"%s: %s:n=0x%x [ERROR] Card flash not initialized.\n",
QLA2XXX_DRIVER_NAME, __func__, n);
return -1;
}
qla_printk(KERN_INFO, ha,
"%s: %d CRB init values found in ROM.\n", QLA2XXX_DRIVER_NAME, n);
buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL);
if (buf == NULL) {
qla_printk(KERN_WARNING, ha,
"%s: [ERROR] Unable to malloc memory.\n",
QLA2XXX_DRIVER_NAME);
return -1;
}
for (i = 0; i < n; i++) {
if (qla82xx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 ||
qla82xx_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 = qla82xx_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
*/
/* 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) {
qla_printk(KERN_WARNING, ha,
"%s: [ERROR] Unknown addr: 0x%08lx\n",
QLA2XXX_DRIVER_NAME, buf[i].addr);
continue;
}
qla82xx_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 */
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8);
/* Clear all protocol processing engines */
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0);
return 0;
}
static int
qla82xx_pci_mem_write_2M(struct qla_hw_data *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 (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
return qla82xx_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 (qla82xx_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);
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp);
temp = word[i * scale] & 0xffffffff;
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp);
temp = (word[i * scale] >> 32) & 0xffffffff;
qla82xx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp);
temp = word[i*scale + 1] & 0xffffffff;
qla82xx_wr_32(ha, mem_crb +
MIU_TEST_AGT_WRDATA_UPPER_LO, temp);
temp = (word[i*scale + 1] >> 32) & 0xffffffff;
qla82xx_wr_32(ha, mem_crb +
MIU_TEST_AGT_WRDATA_UPPER_HI, temp);
temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qla82xx_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())
dev_err(&ha->pdev->dev,
"failed to write through agent\n");
ret = -1;
break;
}
}
return ret;
}
static int
qla82xx_fw_load_from_flash(struct qla_hw_data *ha)
{
int i;
long size = 0;
long flashaddr = ha->flt_region_bootload << 2;
long memaddr = BOOTLD_START;
u64 data;
u32 high, low;
size = (IMAGE_START - BOOTLD_START) / 8;
for (i = 0; i < size; i++) {
if ((qla82xx_rom_fast_read(ha, flashaddr, (int *)&low)) ||
(qla82xx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) {
return -1;
}
data = ((u64)high << 32) | low ;
qla82xx_pci_mem_write_2M(ha, memaddr, &data, 8);
flashaddr += 8;
memaddr += 8;
if (i % 0x1000 == 0)
msleep(1);
}
udelay(100);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
read_unlock(&ha->hw_lock);
return 0;
}
int
qla82xx_pci_mem_read_2M(struct qla_hw_data *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 (qla82xx_pci_mem_bound_check(ha, off, size) == 0)
return qla82xx_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);
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp);
temp = 0;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp);
temp = MIU_TA_CTL_ENABLE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE;
qla82xx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp);
for (j = 0; j < MAX_CTL_CHECK; j++) {
temp = qla82xx_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())
dev_err(&ha->pdev->dev,
"failed to read through agent\n");
break;
}
start = off0[i] >> 2;
end = (off0[i] + sz[i] - 1) >> 2;
for (k = start; k <= end; k++) {
temp = qla82xx_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;
}
static struct qla82xx_uri_table_desc *
qla82xx_get_table_desc(const u8 *unirom, int section)
{
uint32_t i;
struct qla82xx_uri_table_desc *directory =
(struct qla82xx_uri_table_desc *)&unirom[0];
__le32 offset;
__le32 tab_type;
__le32 entries = cpu_to_le32(directory->num_entries);
for (i = 0; i < entries; i++) {
offset = cpu_to_le32(directory->findex) +
(i * cpu_to_le32(directory->entry_size));
tab_type = cpu_to_le32(*((u32 *)&unirom[offset] + 8));
if (tab_type == section)
return (struct qla82xx_uri_table_desc *)&unirom[offset];
}
return NULL;
}
static struct qla82xx_uri_data_desc *
qla82xx_get_data_desc(struct qla_hw_data *ha,
u32 section, u32 idx_offset)
{
const u8 *unirom = ha->hablob->fw->data;
int idx = cpu_to_le32(*((int *)&unirom[ha->file_prd_off] + idx_offset));
struct qla82xx_uri_table_desc *tab_desc = NULL;
__le32 offset;
tab_desc = qla82xx_get_table_desc(unirom, section);
if (!tab_desc)
return NULL;
offset = cpu_to_le32(tab_desc->findex) +
(cpu_to_le32(tab_desc->entry_size) * idx);
return (struct qla82xx_uri_data_desc *)&unirom[offset];
}
static u8 *
qla82xx_get_bootld_offset(struct qla_hw_data *ha)
{
u32 offset = BOOTLD_START;
struct qla82xx_uri_data_desc *uri_desc = NULL;
if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
uri_desc = qla82xx_get_data_desc(ha,
QLA82XX_URI_DIR_SECT_BOOTLD, QLA82XX_URI_BOOTLD_IDX_OFF);
if (uri_desc)
offset = cpu_to_le32(uri_desc->findex);
}
return (u8 *)&ha->hablob->fw->data[offset];
}
static __le32
qla82xx_get_fw_size(struct qla_hw_data *ha)
{
struct qla82xx_uri_data_desc *uri_desc = NULL;
if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
QLA82XX_URI_FIRMWARE_IDX_OFF);
if (uri_desc)
return cpu_to_le32(uri_desc->size);
}
return cpu_to_le32(*(u32 *)&ha->hablob->fw->data[FW_SIZE_OFFSET]);
}
static u8 *
qla82xx_get_fw_offs(struct qla_hw_data *ha)
{
u32 offset = IMAGE_START;
struct qla82xx_uri_data_desc *uri_desc = NULL;
if (ha->fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
uri_desc = qla82xx_get_data_desc(ha, QLA82XX_URI_DIR_SECT_FW,
QLA82XX_URI_FIRMWARE_IDX_OFF);
if (uri_desc)
offset = cpu_to_le32(uri_desc->findex);
}
return (u8 *)&ha->hablob->fw->data[offset];
}
/* PCI related functions */
char *
qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
{
int pcie_reg;
struct qla_hw_data *ha = vha->hw;
char lwstr[6];
uint16_t lnk;
pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
ha->link_width = (lnk >> 4) & 0x3f;
strcpy(str, "PCIe (");
strcat(str, "2.5Gb/s ");
snprintf(lwstr, sizeof(lwstr), "x%d)", ha->link_width);
strcat(str, lwstr);
return str;
}
int qla82xx_pci_region_offset(struct pci_dev *pdev, int region)
{
unsigned long val = 0;
u32 control;
switch (region) {
case 0:
val = 0;
break;
case 1:
pci_read_config_dword(pdev, QLA82XX_PCI_REG_MSIX_TBL, &control);
val = control + QLA82XX_MSIX_TBL_SPACE;
break;
}
return val;
}
int
qla82xx_iospace_config(struct qla_hw_data *ha)
{
uint32_t len = 0;
if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
qla_printk(KERN_WARNING, ha,
"Failed to reserve selected regions (%s)\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
/* Use MMIO operations for all accesses. */
if (!(pci_resource_flags(ha->pdev, 0) & IORESOURCE_MEM)) {
qla_printk(KERN_ERR, ha,
"region #0 not an MMIO resource (%s), aborting\n",
pci_name(ha->pdev));
goto iospace_error_exit;
}
len = pci_resource_len(ha->pdev, 0);
ha->nx_pcibase =
(unsigned long)ioremap(pci_resource_start(ha->pdev, 0), len);
if (!ha->nx_pcibase) {
qla_printk(KERN_ERR, ha,
"cannot remap pcibase MMIO (%s), aborting\n",
pci_name(ha->pdev));
pci_release_regions(ha->pdev);
goto iospace_error_exit;
}
/* Mapping of IO base pointer */
ha->iobase = (device_reg_t __iomem *)((uint8_t *)ha->nx_pcibase +
0xbc000 + (ha->pdev->devfn << 11));
if (!ql2xdbwr) {
ha->nxdb_wr_ptr =
(unsigned long)ioremap((pci_resource_start(ha->pdev, 4) +
(ha->pdev->devfn << 12)), 4);
if (!ha->nxdb_wr_ptr) {
qla_printk(KERN_ERR, ha,
"cannot remap MMIO (%s), aborting\n",
pci_name(ha->pdev));
pci_release_regions(ha->pdev);
goto iospace_error_exit;
}
/* Mapping of IO base pointer,
* door bell read and write pointer
*/
ha->nxdb_rd_ptr = (uint8_t *) ha->nx_pcibase + (512 * 1024) +
(ha->pdev->devfn * 8);
} else {
ha->nxdb_wr_ptr = (ha->pdev->devfn == 6 ?
QLA82XX_CAMRAM_DB1 :
QLA82XX_CAMRAM_DB2);
}
ha->max_req_queues = ha->max_rsp_queues = 1;
ha->msix_count = ha->max_rsp_queues + 1;
return 0;
iospace_error_exit:
return -ENOMEM;
}
/* GS related functions */
/* Initialization related functions */
/**
* qla82xx_pci_config() - Setup ISP82xx PCI configuration registers.
* @ha: HA context
*
* Returns 0 on success.
*/
int
qla82xx_pci_config(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
int ret;
pci_set_master(ha->pdev);
ret = pci_set_mwi(ha->pdev);
ha->chip_revision = ha->pdev->revision;
return 0;
}
/**
* qla82xx_reset_chip() - Setup ISP82xx PCI configuration registers.
* @ha: HA context
*
* Returns 0 on success.
*/
void
qla82xx_reset_chip(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
ha->isp_ops->disable_intrs(ha);
}
void qla82xx_config_rings(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
struct init_cb_81xx *icb;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
/* Setup ring parameters in initialization control block. */
icb = (struct init_cb_81xx *)ha->init_cb;
icb->request_q_outpointer = __constant_cpu_to_le16(0);
icb->response_q_inpointer = __constant_cpu_to_le16(0);
icb->request_q_length = cpu_to_le16(req->length);
icb->response_q_length = cpu_to_le16(rsp->length);
icb->request_q_address[0] = cpu_to_le32(LSD(req->dma));
icb->request_q_address[1] = cpu_to_le32(MSD(req->dma));
icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));
WRT_REG_DWORD((unsigned long __iomem *)&reg->req_q_out[0], 0);
WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_in[0], 0);
WRT_REG_DWORD((unsigned long __iomem *)&reg->rsp_q_out[0], 0);
}
void qla82xx_reset_adapter(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
vha->flags.online = 0;
qla2x00_try_to_stop_firmware(vha);
ha->isp_ops->disable_intrs(ha);
}
static int
qla82xx_fw_load_from_blob(struct qla_hw_data *ha)
{
u64 *ptr64;
u32 i, flashaddr, size;
__le64 data;
size = (IMAGE_START - BOOTLD_START) / 8;
ptr64 = (u64 *)qla82xx_get_bootld_offset(ha);
flashaddr = BOOTLD_START;
for (i = 0; i < size; i++) {
data = cpu_to_le64(ptr64[i]);
if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
return -EIO;
flashaddr += 8;
}
flashaddr = FLASH_ADDR_START;
size = (__force u32)qla82xx_get_fw_size(ha) / 8;
ptr64 = (u64 *)qla82xx_get_fw_offs(ha);
for (i = 0; i < size; i++) {
data = cpu_to_le64(ptr64[i]);
if (qla82xx_pci_mem_write_2M(ha, flashaddr, &data, 8))
return -EIO;
flashaddr += 8;
}
udelay(100);
/* Write a magic value to CAMRAM register
* at a specified offset to indicate
* that all data is written and
* ready for firmware to initialize.
*/
qla82xx_wr_32(ha, QLA82XX_CAM_RAM(0x1fc), QLA82XX_BDINFO_MAGIC);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e);
read_unlock(&ha->hw_lock);
return 0;
}
static int
qla82xx_set_product_offset(struct qla_hw_data *ha)
{
struct qla82xx_uri_table_desc *ptab_desc = NULL;
const uint8_t *unirom = ha->hablob->fw->data;
uint32_t i;
__le32 entries;
__le32 flags, file_chiprev, offset;
uint8_t chiprev = ha->chip_revision;
/* Hardcoding mn_present flag for P3P */
int mn_present = 0;
uint32_t flagbit;
ptab_desc = qla82xx_get_table_desc(unirom,
QLA82XX_URI_DIR_SECT_PRODUCT_TBL);
if (!ptab_desc)
return -1;
entries = cpu_to_le32(ptab_desc->num_entries);
for (i = 0; i < entries; i++) {
offset = cpu_to_le32(ptab_desc->findex) +
(i * cpu_to_le32(ptab_desc->entry_size));
flags = cpu_to_le32(*((int *)&unirom[offset] +
QLA82XX_URI_FLAGS_OFF));
file_chiprev = cpu_to_le32(*((int *)&unirom[offset] +
QLA82XX_URI_CHIP_REV_OFF));
flagbit = mn_present ? 1 : 2;
if ((chiprev == file_chiprev) && ((1ULL << flagbit) & flags)) {
ha->file_prd_off = offset;
return 0;
}
}
return -1;
}
int
qla82xx_validate_firmware_blob(scsi_qla_host_t *vha, uint8_t fw_type)
{
__le32 val;
uint32_t min_size;
struct qla_hw_data *ha = vha->hw;
const struct firmware *fw = ha->hablob->fw;
ha->fw_type = fw_type;
if (fw_type == QLA82XX_UNIFIED_ROMIMAGE) {
if (qla82xx_set_product_offset(ha))
return -EINVAL;
min_size = QLA82XX_URI_FW_MIN_SIZE;
} else {
val = cpu_to_le32(*(u32 *)&fw->data[QLA82XX_FW_MAGIC_OFFSET]);
if ((__force u32)val != QLA82XX_BDINFO_MAGIC)
return -EINVAL;
min_size = QLA82XX_FW_MIN_SIZE;
}
if (fw->size < min_size)
return -EINVAL;
return 0;
}
static int
qla82xx_check_cmdpeg_state(struct qla_hw_data *ha)
{
u32 val = 0;
int retries = 60;
do {
read_lock(&ha->hw_lock);
val = qla82xx_rd_32(ha, CRB_CMDPEG_STATE);
read_unlock(&ha->hw_lock);
switch (val) {
case PHAN_INITIALIZE_COMPLETE:
case PHAN_INITIALIZE_ACK:
return QLA_SUCCESS;
case PHAN_INITIALIZE_FAILED:
break;
default:
break;
}
qla_printk(KERN_WARNING, ha,
"CRB_CMDPEG_STATE: 0x%x and retries: 0x%x\n",
val, retries);
msleep(500);
} while (--retries);
qla_printk(KERN_INFO, ha,
"Cmd Peg initialization failed: 0x%x.\n", val);
val = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, CRB_CMDPEG_STATE, PHAN_INITIALIZE_FAILED);
read_unlock(&ha->hw_lock);
return QLA_FUNCTION_FAILED;
}
static int
qla82xx_check_rcvpeg_state(struct qla_hw_data *ha)
{
u32 val = 0;
int retries = 60;
do {
read_lock(&ha->hw_lock);
val = qla82xx_rd_32(ha, CRB_RCVPEG_STATE);
read_unlock(&ha->hw_lock);
switch (val) {
case PHAN_INITIALIZE_COMPLETE:
case PHAN_INITIALIZE_ACK:
return QLA_SUCCESS;
case PHAN_INITIALIZE_FAILED:
break;
default:
break;
}
qla_printk(KERN_WARNING, ha,
"CRB_RCVPEG_STATE: 0x%x and retries: 0x%x\n",
val, retries);
msleep(500);
} while (--retries);
qla_printk(KERN_INFO, ha,
"Rcv Peg initialization failed: 0x%x.\n", val);
read_lock(&ha->hw_lock);
qla82xx_wr_32(ha, CRB_RCVPEG_STATE, PHAN_INITIALIZE_FAILED);
read_unlock(&ha->hw_lock);
return QLA_FUNCTION_FAILED;
}
/* ISR related functions */
uint32_t qla82xx_isr_int_target_mask_enable[8] = {
ISR_INT_TARGET_MASK, ISR_INT_TARGET_MASK_F1,
ISR_INT_TARGET_MASK_F2, ISR_INT_TARGET_MASK_F3,
ISR_INT_TARGET_MASK_F4, ISR_INT_TARGET_MASK_F5,
ISR_INT_TARGET_MASK_F7, ISR_INT_TARGET_MASK_F7
};
uint32_t qla82xx_isr_int_target_status[8] = {
ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
ISR_INT_TARGET_STATUS_F7, ISR_INT_TARGET_STATUS_F7
};
static struct qla82xx_legacy_intr_set legacy_intr[] = \
QLA82XX_LEGACY_INTR_CONFIG;
/*
* qla82xx_mbx_completion() - Process mailbox command completions.
* @ha: SCSI driver HA context
* @mb0: Mailbox0 register
*/
static void
qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
{
uint16_t cnt;
uint16_t __iomem *wptr;
struct qla_hw_data *ha = vha->hw;
struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
wptr = (uint16_t __iomem *)&reg->mailbox_out[1];
/* Load return mailbox registers. */
ha->flags.mbox_int = 1;
ha->mailbox_out[0] = mb0;
for (cnt = 1; cnt < ha->mbx_count; cnt++) {
ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
wptr++;
}
if (ha->mcp) {
DEBUG3_11(printk(KERN_INFO "%s(%ld): "
"Got mailbox completion. cmd=%x.\n",
__func__, vha->host_no, ha->mcp->mb[0]));
} else {
qla_printk(KERN_INFO, ha,
"%s(%ld): MBX pointer ERROR!\n",
__func__, vha->host_no);
}
}
/*
* qla82xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
* @irq:
* @dev_id: SCSI driver HA context
* @regs:
*
* Called by system whenever the host adapter generates an interrupt.
*
* Returns handled flag.
*/
irqreturn_t
qla82xx_intr_handler(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
int status = 0, status1 = 0;
unsigned long flags;
unsigned long iter;
uint32_t stat;
uint16_t mb[4];
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
printk(KERN_INFO
"%s(): NULL response queue pointer\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
if (!ha->flags.msi_enabled) {
status = qla82xx_rd_32(ha, ISR_INT_VECTOR);
if (!(status & ha->nx_legacy_intr.int_vec_bit))
return IRQ_NONE;
status1 = qla82xx_rd_32(ha, ISR_INT_STATE_REG);
if (!ISR_IS_LEGACY_INTR_TRIGGERED(status1))
return IRQ_NONE;
}
/* clear the interrupt */
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_status_reg, 0xffffffff);
/* read twice to ensure write is flushed */
qla82xx_rd_32(ha, ISR_INT_VECTOR);
qla82xx_rd_32(ha, ISR_INT_VECTOR);
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
for (iter = 1; iter--; ) {
if (RD_REG_DWORD(&reg->host_int)) {
stat = RD_REG_DWORD(&reg->host_status);
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla82xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla24xx_process_response_queue(vha, rsp);
break;
default:
DEBUG2(printk("scsi(%ld): "
" Unrecognized interrupt type (%d).\n",
vha->host_no, stat & 0xff));
break;
}
}
WRT_REG_DWORD(&reg->host_int, 0);
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
if (!ha->flags.msi_enabled)
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
#ifdef QL_DEBUG_LEVEL_17
if (!irq && ha->flags.eeh_busy)
qla_printk(KERN_WARNING, ha,
"isr: status %x, cmd_flags %lx, mbox_int %x, stat %x\n",
status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
#endif
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return IRQ_HANDLED;
}
irqreturn_t
qla82xx_msix_default(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
int status = 0;
unsigned long flags;
uint32_t stat;
uint16_t mb[4];
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
printk(KERN_INFO
"%s(): NULL response queue pointer\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
do {
if (RD_REG_DWORD(&reg->host_int)) {
stat = RD_REG_DWORD(&reg->host_status);
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla82xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla24xx_process_response_queue(vha, rsp);
break;
default:
DEBUG2(printk("scsi(%ld): "
" Unrecognized interrupt type (%d).\n",
vha->host_no, stat & 0xff));
break;
}
}
WRT_REG_DWORD(&reg->host_int, 0);
} while (0);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
#ifdef QL_DEBUG_LEVEL_17
if (!irq && ha->flags.eeh_busy)
qla_printk(KERN_WARNING, ha,
"isr: status %x, cmd_flags %lx, mbox_int %x, stat %x\n",
status, ha->mbx_cmd_flags, ha->flags.mbox_int, stat);
#endif
if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
(status & MBX_INTERRUPT) && ha->flags.mbox_int) {
set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
complete(&ha->mbx_intr_comp);
}
return IRQ_HANDLED;
}
irqreturn_t
qla82xx_msix_rsp_q(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
printk(KERN_INFO
"%s(): NULL response queue pointer\n", __func__);
return IRQ_NONE;
}
ha = rsp->hw;
reg = &ha->iobase->isp82;
spin_lock_irq(&ha->hardware_lock);
vha = pci_get_drvdata(ha->pdev);
qla24xx_process_response_queue(vha, rsp);
WRT_REG_DWORD(&reg->host_int, 0);
spin_unlock_irq(&ha->hardware_lock);
return IRQ_HANDLED;
}
void
qla82xx_poll(int irq, void *dev_id)
{
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct rsp_que *rsp;
struct device_reg_82xx __iomem *reg;
int status = 0;
uint32_t stat;
uint16_t mb[4];
unsigned long flags;
rsp = (struct rsp_que *) dev_id;
if (!rsp) {
printk(KERN_INFO
"%s(): NULL response queue pointer\n", __func__);
return;
}
ha = rsp->hw;
reg = &ha->iobase->isp82;
spin_lock_irqsave(&ha->hardware_lock, flags);
vha = pci_get_drvdata(ha->pdev);
if (RD_REG_DWORD(&reg->host_int)) {
stat = RD_REG_DWORD(&reg->host_status);
switch (stat & 0xff) {
case 0x1:
case 0x2:
case 0x10:
case 0x11:
qla82xx_mbx_completion(vha, MSW(stat));
status |= MBX_INTERRUPT;
break;
case 0x12:
mb[0] = MSW(stat);
mb[1] = RD_REG_WORD(&reg->mailbox_out[1]);
mb[2] = RD_REG_WORD(&reg->mailbox_out[2]);
mb[3] = RD_REG_WORD(&reg->mailbox_out[3]);
qla2x00_async_event(vha, rsp, mb);
break;
case 0x13:
qla24xx_process_response_queue(vha, rsp);
break;
default:
DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
"(%d).\n",
vha->host_no, stat & 0xff));
break;
}
}
WRT_REG_DWORD(&reg->host_int, 0);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
void
qla82xx_enable_intrs(struct qla_hw_data *ha)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
qla82xx_mbx_intr_enable(vha);
spin_lock_irq(&ha->hardware_lock);
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff);
spin_unlock_irq(&ha->hardware_lock);
ha->interrupts_on = 1;
}
void
qla82xx_disable_intrs(struct qla_hw_data *ha)
{
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
qla82xx_mbx_intr_disable(vha);
spin_lock_irq(&ha->hardware_lock);
qla82xx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400);
spin_unlock_irq(&ha->hardware_lock);
ha->interrupts_on = 0;
}
void qla82xx_init_flags(struct qla_hw_data *ha)
{
struct qla82xx_legacy_intr_set *nx_legacy_intr;
/* ISP 8021 initializations */
rwlock_init(&ha->hw_lock);
ha->qdr_sn_window = -1;
ha->ddr_mn_window = -1;
ha->curr_window = 255;
ha->portnum = PCI_FUNC(ha->pdev->devfn);
nx_legacy_intr = &legacy_intr[ha->portnum];
ha->nx_legacy_intr.int_vec_bit = nx_legacy_intr->int_vec_bit;
ha->nx_legacy_intr.tgt_status_reg = nx_legacy_intr->tgt_status_reg;
ha->nx_legacy_intr.tgt_mask_reg = nx_legacy_intr->tgt_mask_reg;
ha->nx_legacy_intr.pci_int_reg = nx_legacy_intr->pci_int_reg;
}
inline void
qla82xx_set_drv_active(scsi_qla_host_t *vha)
{
uint32_t drv_active;
struct qla_hw_data *ha = vha->hw;
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
/* If reset value is all FF's, initialize DRV_ACTIVE */
if (drv_active == 0xffffffff) {
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE,
QLA82XX_DRV_NOT_ACTIVE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
}
drv_active |= (QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
inline void
qla82xx_clear_drv_active(struct qla_hw_data *ha)
{
uint32_t drv_active;
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active &= ~(QLA82XX_DRV_ACTIVE << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active);
}
static inline int
qla82xx_need_reset(struct qla_hw_data *ha)
{
uint32_t drv_state;
int rval;
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
rval = drv_state & (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
return rval;
}
static inline void
qla82xx_set_rst_ready(struct qla_hw_data *ha)
{
uint32_t drv_state;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
/* If reset value is all FF's, initialize DRV_STATE */
if (drv_state == 0xffffffff) {
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, QLA82XX_DRVST_NOT_RDY);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
}
drv_state |= (QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
qla_printk(KERN_INFO, ha,
"%s(%ld):drv_state = 0x%x\n",
__func__, vha->host_no, drv_state);
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
static inline void
qla82xx_clear_rst_ready(struct qla_hw_data *ha)
{
uint32_t drv_state;
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_state &= ~(QLA82XX_DRVST_RST_RDY << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state);
}
static inline void
qla82xx_set_qsnt_ready(struct qla_hw_data *ha)
{
uint32_t qsnt_state;
qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
qsnt_state |= (QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
}
void
qla82xx_clear_qsnt_ready(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t qsnt_state;
qsnt_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
qsnt_state &= ~(QLA82XX_DRVST_QSNT_RDY << (ha->portnum * 4));
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state);
}
static int
qla82xx_load_fw(scsi_qla_host_t *vha)
{
int rst;
struct fw_blob *blob;
struct qla_hw_data *ha = vha->hw;
if (qla82xx_pinit_from_rom(vha) != QLA_SUCCESS) {
qla_printk(KERN_ERR, ha,
"%s: Error during CRB Initialization\n", __func__);
return QLA_FUNCTION_FAILED;
}
udelay(500);
/* Bring QM and CAMRAM out of reset */
rst = qla82xx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET);
rst &= ~((1 << 28) | (1 << 24));
qla82xx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst);
/*
* FW Load priority:
* 1) Operational firmware residing in flash.
* 2) Firmware via request-firmware interface (.bin file).
*/
if (ql2xfwloadbin == 2)
goto try_blob_fw;
qla_printk(KERN_INFO, ha,
"Attempting to load firmware from flash\n");
if (qla82xx_fw_load_from_flash(ha) == QLA_SUCCESS) {
qla_printk(KERN_ERR, ha,
"Firmware loaded successfully from flash\n");
return QLA_SUCCESS;
}
try_blob_fw:
qla_printk(KERN_INFO, ha,
"Attempting to load firmware from blob\n");
/* Load firmware blob. */
blob = ha->hablob = qla2x00_request_firmware(vha);
if (!blob) {
qla_printk(KERN_ERR, ha,
"Firmware image not present.\n");
goto fw_load_failed;
}
/* Validating firmware blob */
if (qla82xx_validate_firmware_blob(vha,
QLA82XX_FLASH_ROMIMAGE)) {
/* Fallback to URI format */
if (qla82xx_validate_firmware_blob(vha,
QLA82XX_UNIFIED_ROMIMAGE)) {
qla_printk(KERN_ERR, ha,
"No valid firmware image found!!!");
return QLA_FUNCTION_FAILED;
}
}
if (qla82xx_fw_load_from_blob(ha) == QLA_SUCCESS) {
qla_printk(KERN_ERR, ha,
"%s: Firmware loaded successfully "
" from binary blob\n", __func__);
return QLA_SUCCESS;
} else {
qla_printk(KERN_ERR, ha,
"Firmware load failed from binary blob\n");
blob->fw = NULL;
blob = NULL;
goto fw_load_failed;
}
return QLA_SUCCESS;
fw_load_failed:
return QLA_FUNCTION_FAILED;
}
int
qla82xx_start_firmware(scsi_qla_host_t *vha)
{
int pcie_cap;
uint16_t lnk;
struct qla_hw_data *ha = vha->hw;
/* scrub dma mask expansion register */
qla82xx_wr_32(ha, CRB_DMA_SHIFT, QLA82XX_DMA_SHIFT_VALUE);
/* Put both the PEG CMD and RCV PEG to default state
* of 0 before resetting the hardware
*/
qla82xx_wr_32(ha, CRB_CMDPEG_STATE, 0);
qla82xx_wr_32(ha, CRB_RCVPEG_STATE, 0);
/* Overwrite stale initialization register values */
qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0);
qla82xx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0);
if (qla82xx_load_fw(vha) != QLA_SUCCESS) {
qla_printk(KERN_INFO, ha,
"%s: Error trying to start fw!\n", __func__);
return QLA_FUNCTION_FAILED;
}
/* Handshake with the card before we register the devices. */
if (qla82xx_check_cmdpeg_state(ha) != QLA_SUCCESS) {
qla_printk(KERN_INFO, ha,
"%s: Error during card handshake!\n", __func__);
return QLA_FUNCTION_FAILED;
}
/* Negotiated Link width */
pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
ha->link_width = (lnk >> 4) & 0x3f;
/* Synchronize with Receive peg */
return qla82xx_check_rcvpeg_state(ha);
}
static inline int
qla2xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
uint16_t tot_dsds)
{
uint32_t *cur_dsd = NULL;
scsi_qla_host_t *vha;
struct qla_hw_data *ha;
struct scsi_cmnd *cmd;
struct scatterlist *cur_seg;
uint32_t *dsd_seg;
void *next_dsd;
uint8_t avail_dsds;
uint8_t first_iocb = 1;
uint32_t dsd_list_len;
struct dsd_dma *dsd_ptr;
struct ct6_dsd *ctx;
cmd = sp->cmd;
/* Update entry type to indicate Command Type 3 IOCB */
*((uint32_t *)(&cmd_pkt->entry_type)) =
__constant_cpu_to_le32(COMMAND_TYPE_6);
/* No data transfer */
if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
return 0;
}
vha = sp->fcport->vha;
ha = vha->hw;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags =
__constant_cpu_to_le16(CF_WRITE_DATA);
ha->qla_stats.output_bytes += scsi_bufflen(cmd);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags =
__constant_cpu_to_le16(CF_READ_DATA);
ha->qla_stats.input_bytes += scsi_bufflen(cmd);
}
cur_seg = scsi_sglist(cmd);
ctx = sp->ctx;
while (tot_dsds) {
avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : tot_dsds;
tot_dsds -= avail_dsds;
dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
struct dsd_dma, list);
next_dsd = dsd_ptr->dsd_addr;
list_del(&dsd_ptr->list);
ha->gbl_dsd_avail--;
list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
ctx->dsd_use_cnt++;
ha->gbl_dsd_inuse++;
if (first_iocb) {
first_iocb = 0;
dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
*dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
*dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
*dsd_seg++ = dsd_list_len;
} else {
*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
*cur_dsd++ = dsd_list_len;
}
cur_dsd = (uint32_t *)next_dsd;
while (avail_dsds) {
dma_addr_t sle_dma;
sle_dma = sg_dma_address(cur_seg);
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
*cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
cur_seg++;
avail_dsds--;
}
}
/* Null termination */
*cur_dsd++ = 0;
*cur_dsd++ = 0;
*cur_dsd++ = 0;
cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
return 0;
}
/*
* qla82xx_calc_dsd_lists() - Determine number of DSD list required
* for Command Type 6.
*
* @dsds: number of data segment decriptors needed
*
* Returns the number of dsd list needed to store @dsds.
*/
inline uint16_t
qla82xx_calc_dsd_lists(uint16_t dsds)
{
uint16_t dsd_lists = 0;
dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
if (dsds % QLA_DSDS_PER_IOCB)
dsd_lists++;
return dsd_lists;
}
/*
* qla82xx_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occured, else zero.
*/
int
qla82xx_start_scsi(srb_t *sp)
{
int ret, nseg;
unsigned long flags;
struct scsi_cmnd *cmd;
uint32_t *clr_ptr;
uint32_t index;
uint32_t handle;
uint16_t cnt;
uint16_t req_cnt;
uint16_t tot_dsds;
struct device_reg_82xx __iomem *reg;
uint32_t dbval;
uint32_t *fcp_dl;
uint8_t additional_cdb_len;
struct ct6_dsd *ctx;
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
/* Setup device pointers. */
ret = 0;
reg = &ha->iobase->isp82;
cmd = sp->cmd;
req = vha->req;
rsp = ha->rsp_q_map[0];
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
dbval = 0x04 | (ha->portnum << 5);
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, req,
rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
handle++;
if (handle == MAX_OUTSTANDING_COMMANDS)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
if (index == MAX_OUTSTANDING_COMMANDS)
goto queuing_error;
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
} else
nseg = 0;
tot_dsds = nseg;
if (tot_dsds > ql2xshiftctondsd) {
struct cmd_type_6 *cmd_pkt;
uint16_t more_dsd_lists = 0;
struct dsd_dma *dsd_ptr;
uint16_t i;
more_dsd_lists = qla82xx_calc_dsd_lists(tot_dsds);
if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN)
goto queuing_error;
if (more_dsd_lists <= ha->gbl_dsd_avail)
goto sufficient_dsds;
else
more_dsd_lists -= ha->gbl_dsd_avail;
for (i = 0; i < more_dsd_lists; i++) {
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
if (!dsd_ptr)
goto queuing_error;
dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
if (!dsd_ptr->dsd_addr) {
kfree(dsd_ptr);
goto queuing_error;
}
list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
ha->gbl_dsd_avail++;
}
sufficient_dsds:
req_cnt = 1;
if (req->cnt < (req_cnt + 2)) {
cnt = (uint16_t)RD_REG_DWORD_RELAXED(
&reg->req_q_out[0]);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
}
if (req->cnt < (req_cnt + 2))
goto queuing_error;
ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
if (!sp->ctx) {
DEBUG(printk(KERN_INFO
"%s(%ld): failed to allocate"
" ctx.\n", __func__, vha->host_no));
goto queuing_error;
}
memset(ctx, 0, sizeof(struct ct6_dsd));
ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
GFP_ATOMIC, &ctx->fcp_cmnd_dma);
if (!ctx->fcp_cmnd) {
DEBUG2_3(printk("%s(%ld): failed to allocate"
" fcp_cmnd.\n", __func__, vha->host_no));
goto queuing_error_fcp_cmnd;
}
/* Initialize the DSD list and dma handle */
INIT_LIST_HEAD(&ctx->dsd_list);
ctx->dsd_use_cnt = 0;
if (cmd->cmd_len > 16) {
additional_cdb_len = cmd->cmd_len - 16;
if ((cmd->cmd_len % 4) != 0) {
/* SCSI command bigger than 16 bytes must be
* multiple of 4
*/
goto queuing_error_fcp_cmnd;
}
ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
} else {
additional_cdb_len = 0;
ctx->fcp_cmnd_len = 12 + 16 + 4;
}
cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
/* Zero out remaining portion of packet. */
/* tagged queuing modifier -- default is TSK_SIMPLE (0). */
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->fcport->vp_idx;
/* Build IOCB segments */
if (qla2xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
goto queuing_error_fcp_cmnd;
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
/* build FCP_CMND IU */
memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
if (cmd->sc_data_direction == DMA_TO_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 1;
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
ctx->fcp_cmnd->additional_cdb_len |= 2;
memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
additional_cdb_len);
*fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
cmd_pkt->fcp_cmnd_dseg_address[0] =
cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
cmd_pkt->fcp_cmnd_dseg_address[1] =
cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
sp->flags |= SRB_FCP_CMND_DMA_VALID;
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
/* Specify response queue number where
* completion should happen
*/
cmd_pkt->entry_status = (uint8_t) rsp->id;
} else {
struct cmd_type_7 *cmd_pkt;
req_cnt = qla24xx_calc_iocbs(tot_dsds);
if (req->cnt < (req_cnt + 2)) {
cnt = (uint16_t)RD_REG_DWORD_RELAXED(
&reg->req_q_out[0]);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
}
if (req->cnt < (req_cnt + 2))
goto queuing_error;
cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
/* Zero out remaining portion of packet. */
/* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
cmd_pkt->vp_index = sp->fcport->vp_idx;
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
sizeof(cmd_pkt->lun));
/* Load SCSI command packet. */
memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
/* Build IOCB segments */
qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
/* Set total data segment count. */
cmd_pkt->entry_count = (uint8_t)req_cnt;
/* Specify response queue number where
* completion should happen.
*/
cmd_pkt->entry_status = (uint8_t) rsp->id;
}
/* Build command packet. */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->handle = handle;
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
sp->flags |= SRB_DMA_VALID;
/* Set chip new ring index. */
/* write, read and verify logic */
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
if (ql2xdbwr)
qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
else {
WRT_REG_DWORD(
(unsigned long __iomem *)ha->nxdb_wr_ptr,
dbval);
wmb();
while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
WRT_REG_DWORD(
(unsigned long __iomem *)ha->nxdb_wr_ptr,
dbval);
wmb();
}
}
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error_fcp_cmnd:
dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
queuing_error:
if (tot_dsds)
scsi_dma_unmap(cmd);
if (sp->ctx) {
mempool_free(sp->ctx, ha->ctx_mempool);
sp->ctx = NULL;
}
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_FUNCTION_FAILED;
}
static uint32_t *
qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
uint32_t length)
{
uint32_t i;
uint32_t val;
struct qla_hw_data *ha = vha->hw;
/* Dword reads to flash. */
for (i = 0; i < length/4; i++, faddr += 4) {
if (qla82xx_rom_fast_read(ha, faddr, &val)) {
qla_printk(KERN_WARNING, ha,
"Do ROM fast read failed\n");
goto done_read;
}
dwptr[i] = __constant_cpu_to_le32(val);
}
done_read:
return dwptr;
}
static int
qla82xx_unprotect_flash(struct qla_hw_data *ha)
{
int ret;
uint32_t val;
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
return ret;
}
ret = qla82xx_read_status_reg(ha, &val);
if (ret < 0)
goto done_unprotect;
val &= ~(BLOCK_PROTECT_BITS << 2);
ret = qla82xx_write_status_reg(ha, val);
if (ret < 0) {
val |= (BLOCK_PROTECT_BITS << 2);
qla82xx_write_status_reg(ha, val);
}
if (qla82xx_write_disable_flash(ha) != 0)
qla_printk(KERN_WARNING, ha, "Write disable failed\n");
done_unprotect:
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
return ret;
}
static int
qla82xx_protect_flash(struct qla_hw_data *ha)
{
int ret;
uint32_t val;
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
return ret;
}
ret = qla82xx_read_status_reg(ha, &val);
if (ret < 0)
goto done_protect;
val |= (BLOCK_PROTECT_BITS << 2);
/* LOCK all sectors */
ret = qla82xx_write_status_reg(ha, val);
if (ret < 0)
qla_printk(KERN_WARNING, ha, "Write status register failed\n");
if (qla82xx_write_disable_flash(ha) != 0)
qla_printk(KERN_WARNING, ha, "Write disable failed\n");
done_protect:
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
return ret;
}
static int
qla82xx_erase_sector(struct qla_hw_data *ha, int addr)
{
int ret = 0;
ret = ql82xx_rom_lock_d(ha);
if (ret < 0) {
qla_printk(KERN_WARNING, ha, "ROM Lock failed\n");
return ret;
}
qla82xx_flash_set_write_enable(ha);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3);
qla82xx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, M25P_INSTR_SE);
if (qla82xx_wait_rom_done(ha)) {
qla_printk(KERN_WARNING, ha,
"Error waiting for rom done\n");
ret = -1;
goto done;
}
ret = qla82xx_flash_wait_write_finish(ha);
done:
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
return ret;
}
/*
* Address and length are byte address
*/
uint8_t *
qla82xx_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
uint32_t offset, uint32_t length)
{
scsi_block_requests(vha->host);
qla82xx_read_flash_data(vha, (uint32_t *)buf, offset, length);
scsi_unblock_requests(vha->host);
return buf;
}
static int
qla82xx_write_flash_data(struct scsi_qla_host *vha, uint32_t *dwptr,
uint32_t faddr, uint32_t dwords)
{
int ret;
uint32_t liter;
uint32_t sec_mask, rest_addr;
dma_addr_t optrom_dma;
void *optrom = NULL;
int page_mode = 0;
struct qla_hw_data *ha = vha->hw;
ret = -1;
/* Prepare burst-capable write on supported ISPs. */
if (page_mode && !(faddr & 0xfff) &&
dwords > OPTROM_BURST_DWORDS) {
optrom = dma_alloc_coherent(&ha->pdev->dev, OPTROM_BURST_SIZE,
&optrom_dma, GFP_KERNEL);
if (!optrom) {
qla_printk(KERN_DEBUG, ha,
"Unable to allocate memory for optrom "
"burst write (%x KB).\n",
OPTROM_BURST_SIZE / 1024);
}
}
rest_addr = ha->fdt_block_size - 1;
sec_mask = ~rest_addr;
ret = qla82xx_unprotect_flash(ha);
if (ret) {
qla_printk(KERN_WARNING, ha,
"Unable to unprotect flash for update.\n");
goto write_done;
}
for (liter = 0; liter < dwords; liter++, faddr += 4, dwptr++) {
/* Are we at the beginning of a sector? */
if ((faddr & rest_addr) == 0) {
ret = qla82xx_erase_sector(ha, faddr);
if (ret) {
DEBUG9(qla_printk(KERN_ERR, ha,
"Unable to erase sector: "
"address=%x.\n", faddr));
break;
}
}
/* Go with burst-write. */
if (optrom && (liter + OPTROM_BURST_DWORDS) <= dwords) {
/* Copy data to DMA'ble buffer. */
memcpy(optrom, dwptr, OPTROM_BURST_SIZE);
ret = qla2x00_load_ram(vha, optrom_dma,
(ha->flash_data_off | faddr),
OPTROM_BURST_DWORDS);
if (ret != QLA_SUCCESS) {
qla_printk(KERN_WARNING, ha,
"Unable to burst-write optrom segment "
"(%x/%x/%llx).\n", ret,
(ha->flash_data_off | faddr),
(unsigned long long)optrom_dma);
qla_printk(KERN_WARNING, ha,
"Reverting to slow-write.\n");
dma_free_coherent(&ha->pdev->dev,
OPTROM_BURST_SIZE, optrom, optrom_dma);
optrom = NULL;
} else {
liter += OPTROM_BURST_DWORDS - 1;
faddr += OPTROM_BURST_DWORDS - 1;
dwptr += OPTROM_BURST_DWORDS - 1;
continue;
}
}
ret = qla82xx_write_flash_dword(ha, faddr,
cpu_to_le32(*dwptr));
if (ret) {
DEBUG9(printk(KERN_DEBUG "%s(%ld) Unable to program"
"flash address=%x data=%x.\n", __func__,
ha->host_no, faddr, *dwptr));
break;
}
}
ret = qla82xx_protect_flash(ha);
if (ret)
qla_printk(KERN_WARNING, ha,
"Unable to protect flash after update.\n");
write_done:
if (optrom)
dma_free_coherent(&ha->pdev->dev,
OPTROM_BURST_SIZE, optrom, optrom_dma);
return ret;
}
int
qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
uint32_t offset, uint32_t length)
{
int rval;
/* Suspend HBA. */
scsi_block_requests(vha->host);
rval = qla82xx_write_flash_data(vha, (uint32_t *)buf, offset,
length >> 2);
scsi_unblock_requests(vha->host);
/* Convert return ISP82xx to generic */
if (rval)
rval = QLA_FUNCTION_FAILED;
else
rval = QLA_SUCCESS;
return rval;
}
void
qla82xx_start_iocbs(srb_t *sp)
{
struct qla_hw_data *ha = sp->fcport->vha->hw;
struct req_que *req = ha->req_q_map[0];
struct device_reg_82xx __iomem *reg;
uint32_t dbval;
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
reg = &ha->iobase->isp82;
dbval = 0x04 | (ha->portnum << 5);
dbval = dbval | (req->id << 8) | (req->ring_index << 16);
if (ql2xdbwr)
qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
else {
WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr, dbval);
wmb();
while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
WRT_REG_DWORD((unsigned long __iomem *)ha->nxdb_wr_ptr,
dbval);
wmb();
}
}
}
void qla82xx_rom_lock_recovery(struct qla_hw_data *ha)
{
if (qla82xx_rom_lock(ha))
/* Someone else is holding the lock. */
qla_printk(KERN_INFO, ha, "Resetting rom_lock\n");
/*
* Either we got the lock, or someone
* else died while holding it.
* In either case, unlock.
*/
qla82xx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK));
}
/*
* qla82xx_device_bootstrap
* Initialize device, set DEV_READY, start fw
*
* Note:
* IDC lock must be held upon entry
*
* Return:
* Success : 0
* Failed : 1
*/
static int
qla82xx_device_bootstrap(scsi_qla_host_t *vha)
{
int rval = QLA_SUCCESS;
int i, timeout;
uint32_t old_count, count;
struct qla_hw_data *ha = vha->hw;
int need_reset = 0, peg_stuck = 1;
need_reset = qla82xx_need_reset(ha);
old_count = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
for (i = 0; i < 10; i++) {
timeout = msleep_interruptible(200);
if (timeout) {
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_FAILED);
return QLA_FUNCTION_FAILED;
}
count = qla82xx_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)
qla82xx_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. */
qla82xx_rom_lock_recovery(ha);
goto dev_initialize;
} else
/* Firmware already running. */
goto dev_ready;
}
return rval;
dev_initialize:
/* set to DEV_INITIALIZING */
qla_printk(KERN_INFO, ha, "HW State: INITIALIZING\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING);
/* Driver that sets device state to initializating sets IDC version */
qla82xx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION);
qla82xx_idc_unlock(ha);
rval = qla82xx_start_firmware(vha);
qla82xx_idc_lock(ha);
if (rval != QLA_SUCCESS) {
qla_printk(KERN_INFO, ha, "HW State: FAILED\n");
qla82xx_clear_drv_active(ha);
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED);
return rval;
}
dev_ready:
qla_printk(KERN_INFO, ha, "HW State: READY\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY);
return QLA_SUCCESS;
}
/*
* qla82xx_need_qsnt_handler
* Code to start quiescence sequence
*
* Note:
* IDC lock must be held upon entry
*
* Return: void
*/
static void
qla82xx_need_qsnt_handler(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
uint32_t dev_state, drv_state, drv_active;
unsigned long reset_timeout;
if (vha->flags.online) {
/*Block any further I/O and wait for pending cmnds to complete*/
qla82xx_quiescent_state_cleanup(vha);
}
/* Set the quiescence ready bit */
qla82xx_set_qsnt_ready(ha);
/*wait for 30 secs for other functions to ack */
reset_timeout = jiffies + (30 * HZ);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
/* Its 2 that is written when qsnt is acked, moving one bit */
drv_active = drv_active << 0x01;
while (drv_state != drv_active) {
if (time_after_eq(jiffies, reset_timeout)) {
/* quiescence timeout, other functions didn't ack
* changing the state to DEV_READY
*/
qla_printk(KERN_INFO, ha,
"%s: QUIESCENT TIMEOUT\n", QLA2XXX_DRIVER_NAME);
qla_printk(KERN_INFO, ha,
"DRV_ACTIVE:%d DRV_STATE:%d\n", drv_active,
drv_state);
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_READY);
qla_printk(KERN_INFO, ha,
"HW State: DEV_READY\n");
qla82xx_idc_unlock(ha);
qla2x00_perform_loop_resync(vha);
qla82xx_idc_lock(ha);
qla82xx_clear_qsnt_ready(vha);
return;
}
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
drv_active = drv_active << 0x01;
}
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
/* everyone acked so set the state to DEV_QUIESCENCE */
if (dev_state == QLA82XX_DEV_NEED_QUIESCENT) {
qla_printk(KERN_INFO, ha, "HW State: DEV_QUIESCENT\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_QUIESCENT);
}
}
/*
* qla82xx_wait_for_state_change
* Wait for device state to change from given current state
*
* Note:
* IDC lock must not be held upon entry
*
* Return:
* Changed device state.
*/
uint32_t
qla82xx_wait_for_state_change(scsi_qla_host_t *vha, uint32_t curr_state)
{
struct qla_hw_data *ha = vha->hw;
uint32_t dev_state;
do {
msleep(1000);
qla82xx_idc_lock(ha);
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
qla82xx_idc_unlock(ha);
} while (dev_state == curr_state);
return dev_state;
}
static void
qla82xx_dev_failed_handler(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
/* Disable the board */
qla_printk(KERN_INFO, ha, "Disabling the board\n");
qla82xx_idc_lock(ha);
qla82xx_clear_drv_active(ha);
qla82xx_idc_unlock(ha);
/* Set DEV_FAILED flag to disable timer */
vha->device_flags |= DFLG_DEV_FAILED;
qla2x00_abort_all_cmds(vha, DID_NO_CONNECT << 16);
qla2x00_mark_all_devices_lost(vha, 0);
vha->flags.online = 0;
vha->flags.init_done = 0;
}
/*
* qla82xx_need_reset_handler
* Code to start reset sequence
*
* Note:
* IDC lock must be held upon entry
*
* Return:
* Success : 0
* Failed : 1
*/
static void
qla82xx_need_reset_handler(scsi_qla_host_t *vha)
{
uint32_t dev_state, drv_state, drv_active;
unsigned long reset_timeout;
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
if (vha->flags.online) {
qla82xx_idc_unlock(ha);
qla2x00_abort_isp_cleanup(vha);
ha->isp_ops->get_flash_version(vha, req->ring);
ha->isp_ops->nvram_config(vha);
qla82xx_idc_lock(ha);
}
qla82xx_set_rst_ready(ha);
/* wait for 10 seconds for reset ack from all functions */
reset_timeout = jiffies + (ha->nx_reset_timeout * HZ);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
while (drv_state != drv_active) {
if (time_after_eq(jiffies, reset_timeout)) {
qla_printk(KERN_INFO, ha,
"%s: RESET TIMEOUT!\n", QLA2XXX_DRIVER_NAME);
break;
}
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
drv_state = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_STATE);
drv_active = qla82xx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE);
}
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
qla_printk(KERN_INFO, ha, "3: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) {
qla_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD);
}
}
static void
qla82xx_check_fw_alive(scsi_qla_host_t *vha)
{
uint32_t fw_heartbeat_counter, halt_status;
struct qla_hw_data *ha = vha->hw;
fw_heartbeat_counter = qla82xx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
/* all 0xff, assume AER/EEH in progress, ignore */
if (fw_heartbeat_counter == 0xffffffff)
return;
if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
vha->seconds_since_last_heartbeat++;
/* FW not alive after 2 seconds */
if (vha->seconds_since_last_heartbeat == 2) {
vha->seconds_since_last_heartbeat = 0;
halt_status = qla82xx_rd_32(ha,
QLA82XX_PEG_HALT_STATUS1);
if (halt_status & HALT_STATUS_UNRECOVERABLE) {
set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
} else {
qla_printk(KERN_INFO, ha,
"scsi(%ld): %s - detect abort needed\n",
vha->host_no, __func__);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
}
qla2xxx_wake_dpc(vha);
ha->flags.fw_hung = 1;
if (ha->flags.mbox_busy) {
ha->flags.mbox_int = 1;
DEBUG2(qla_printk(KERN_ERR, ha,
"Due to fw hung, doing premature "
"completion of mbx command\n"));
if (test_bit(MBX_INTR_WAIT,
&ha->mbx_cmd_flags))
complete(&ha->mbx_intr_comp);
}
}
} else
vha->seconds_since_last_heartbeat = 0;
vha->fw_heartbeat_counter = fw_heartbeat_counter;
}
/*
* qla82xx_device_state_handler
* Main state handler
*
* Note:
* IDC lock must be held upon entry
*
* Return:
* Success : 0
* Failed : 1
*/
int
qla82xx_device_state_handler(scsi_qla_host_t *vha)
{
uint32_t dev_state;
int rval = QLA_SUCCESS;
unsigned long dev_init_timeout;
struct qla_hw_data *ha = vha->hw;
qla82xx_idc_lock(ha);
if (!vha->flags.init_done)
qla82xx_set_drv_active(vha);
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
qla_printk(KERN_INFO, ha, "1: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);
while (1) {
if (time_after_eq(jiffies, dev_init_timeout)) {
DEBUG(qla_printk(KERN_INFO, ha,
"%s: device init failed!\n",
QLA2XXX_DRIVER_NAME));
rval = QLA_FUNCTION_FAILED;
break;
}
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
qla_printk(KERN_INFO, ha,
"2:Device state is 0x%x = %s\n", dev_state,
dev_state < MAX_STATES ?
qdev_state[dev_state] : "Unknown");
switch (dev_state) {
case QLA82XX_DEV_READY:
goto exit;
case QLA82XX_DEV_COLD:
rval = qla82xx_device_bootstrap(vha);
goto exit;
case QLA82XX_DEV_INITIALIZING:
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
break;
case QLA82XX_DEV_NEED_RESET:
if (!ql2xdontresethba)
qla82xx_need_reset_handler(vha);
break;
case QLA82XX_DEV_NEED_QUIESCENT:
qla82xx_need_qsnt_handler(vha);
/* Reset timeout value after quiescence handler */
dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
* HZ);
break;
case QLA82XX_DEV_QUIESCENT:
/* Owner will exit and other will wait for the state
* to get changed
*/
if (ha->flags.quiesce_owner)
goto exit;
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
/* Reset timeout value after quiescence handler */
dev_init_timeout = jiffies + (ha->nx_dev_init_timeout\
* HZ);
break;
case QLA82XX_DEV_FAILED:
qla82xx_dev_failed_handler(vha);
rval = QLA_FUNCTION_FAILED;
goto exit;
default:
qla82xx_idc_unlock(ha);
msleep(1000);
qla82xx_idc_lock(ha);
}
}
exit:
qla82xx_idc_unlock(ha);
return rval;
}
void qla82xx_watchdog(scsi_qla_host_t *vha)
{
uint32_t dev_state;
struct qla_hw_data *ha = vha->hw;
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
/* don't poll if reset is going on */
if (!(test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags) ||
test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
test_bit(ISP_ABORT_RETRY, &vha->dpc_flags))) {
if (dev_state == QLA82XX_DEV_NEED_RESET) {
qla_printk(KERN_WARNING, ha,
"%s(): Adapter reset needed!\n", __func__);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
ha->flags.fw_hung = 1;
if (ha->flags.mbox_busy) {
ha->flags.mbox_int = 1;
DEBUG2(qla_printk(KERN_ERR, ha,
"Need reset, doing premature "
"completion of mbx command\n"));
if (test_bit(MBX_INTR_WAIT,
&ha->mbx_cmd_flags))
complete(&ha->mbx_intr_comp);
}
} else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
DEBUG(qla_printk(KERN_INFO, ha,
"scsi(%ld) %s - detected quiescence needed\n",
vha->host_no, __func__));
set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else {
qla82xx_check_fw_alive(vha);
}
}
}
int qla82xx_load_risc(scsi_qla_host_t *vha, uint32_t *srisc_addr)
{
int rval;
rval = qla82xx_device_state_handler(vha);
return rval;
}
/*
* qla82xx_abort_isp
* Resets ISP and aborts all outstanding commands.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
int
qla82xx_abort_isp(scsi_qla_host_t *vha)
{
int rval;
struct qla_hw_data *ha = vha->hw;
uint32_t dev_state;
if (vha->device_flags & DFLG_DEV_FAILED) {
qla_printk(KERN_WARNING, ha,
"%s(%ld): Device in failed state, "
"Exiting.\n", __func__, vha->host_no);
return QLA_SUCCESS;
}
qla82xx_idc_lock(ha);
dev_state = qla82xx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
if (dev_state == QLA82XX_DEV_READY) {
qla_printk(KERN_INFO, ha, "HW State: NEED RESET\n");
qla82xx_wr_32(ha, QLA82XX_CRB_DEV_STATE,
QLA82XX_DEV_NEED_RESET);
} else
qla_printk(KERN_INFO, ha, "HW State: %s\n",
dev_state < MAX_STATES ?
qdev_state[dev_state] : "Unknown");
qla82xx_idc_unlock(ha);
rval = qla82xx_device_state_handler(vha);
qla82xx_idc_lock(ha);
qla82xx_clear_rst_ready(ha);
qla82xx_idc_unlock(ha);
if (rval == QLA_SUCCESS) {
ha->flags.fw_hung = 0;
qla82xx_restart_isp(vha);
}
if (rval) {
vha->flags.online = 1;
if (test_bit(ISP_ABORT_RETRY, &vha->dpc_flags)) {
if (ha->isp_abort_cnt == 0) {
qla_printk(KERN_WARNING, ha,
"ISP error recovery failed - "
"board disabled\n");
/*
* The next call disables the board
* completely.
*/
ha->isp_ops->reset_adapter(vha);
vha->flags.online = 0;
clear_bit(ISP_ABORT_RETRY,
&vha->dpc_flags);
rval = QLA_SUCCESS;
} else { /* schedule another ISP abort */
ha->isp_abort_cnt--;
DEBUG(qla_printk(KERN_INFO, ha,
"qla%ld: ISP abort - retry remaining %d\n",
vha->host_no, ha->isp_abort_cnt));
rval = QLA_FUNCTION_FAILED;
}
} else {
ha->isp_abort_cnt = MAX_RETRIES_OF_ISP_ABORT;
DEBUG(qla_printk(KERN_INFO, ha,
"(%ld): ISP error recovery - retrying (%d) "
"more times\n", vha->host_no, ha->isp_abort_cnt));
set_bit(ISP_ABORT_RETRY, &vha->dpc_flags);
rval = QLA_FUNCTION_FAILED;
}
}
return rval;
}
/*
* qla82xx_fcoe_ctx_reset
* Perform a quick reset and aborts all outstanding commands.
* This will only perform an FCoE context reset and avoids a full blown
* chip reset.
*
* Input:
* ha = adapter block pointer.
* is_reset_path = flag for identifying the reset path.
*
* Returns:
* 0 = success
*/
int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *vha)
{
int rval = QLA_FUNCTION_FAILED;
if (vha->flags.online) {
/* Abort all outstanding commands, so as to be requeued later */
qla2x00_abort_isp_cleanup(vha);
}
/* Stop currently executing firmware.
* This will destroy existing FCoE context at the F/W end.
*/
qla2x00_try_to_stop_firmware(vha);
/* Restart. Creates a new FCoE context on INIT_FIRMWARE. */
rval = qla82xx_restart_isp(vha);
return rval;
}
/*
* qla2x00_wait_for_fcoe_ctx_reset
* Wait till the FCoE context is reset.
*
* Note:
* Does context switching here.
* Release SPIN_LOCK (if any) before calling this routine.
*
* Return:
* Success (fcoe_ctx reset is done) : 0
* Failed (fcoe_ctx reset not completed within max loop timout ) : 1
*/
int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
{
int status = QLA_FUNCTION_FAILED;
unsigned long wait_reset;
wait_reset = jiffies + (MAX_LOOP_TIMEOUT * HZ);
while ((test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) ||
test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))
&& time_before(jiffies, wait_reset)) {
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(HZ);
if (!test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags) &&
!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
status = QLA_SUCCESS;
break;
}
}
DEBUG2(printk(KERN_INFO
"%s status=%d\n", __func__, status));
return status;
}
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