/* * QLogic iSCSI HBA Driver * Copyright (c) 2003-2010 QLogic Corporation * * See LICENSE.qla4xxx for copyright and licensing details. */ #include <linux/delay.h> #include <linux/io.h> #include <linux/pci.h> #include "ql4_def.h" #include "ql4_glbl.h" #include <asm-generic/io-64-nonatomic-lo-hi.h> #define MASK(n) DMA_BIT_MASK(n) #define MN_WIN(addr) (((addr & 0x1fc0000) >> 1) | ((addr >> 25) & 0x3ff)) #define OCM_WIN(addr) (((addr & 0x1ff0000) >> 1) | ((addr >> 25) & 0x3ff)) #define MS_WIN(addr) (addr & 0x0ffc0000) #define QLA82XX_PCI_MN_2M (0) #define QLA82XX_PCI_MS_2M (0x80000) #define QLA82XX_PCI_OCM0_2M (0xc0000) #define VALID_OCM_ADDR(addr) (((addr) & 0x3f800) != 0x3f800) #define GET_MEM_OFFS_2M(addr) (addr & MASK(18)) /* CRB window related */ #define CRB_BLK(off) ((off >> 20) & 0x3f) #define CRB_SUBBLK(off) ((off >> 16) & 0xf) #define CRB_WINDOW_2M (0x130060) #define CRB_HI(off) ((qla4_8xxx_crb_hub_agt[CRB_BLK(off)] << 20) | \ ((off) & 0xf0000)) #define QLA82XX_PCI_CAMQM_2M_END (0x04800800UL) #define QLA82XX_PCI_CAMQM_2M_BASE (0x000ff800UL) #define CRB_INDIRECT_2M (0x1e0000UL) static inline void __iomem * qla4_8xxx_pci_base_offsetfset(struct scsi_qla_host *ha, unsigned long off) { if ((off < ha->first_page_group_end) && (off >= ha->first_page_group_start)) return (void __iomem *)(ha->nx_pcibase + off); return NULL; } #define MAX_CRB_XFORM 60 static unsigned long crb_addr_xform[MAX_CRB_XFORM]; static int qla4_8xxx_crb_table_initialized; #define qla4_8xxx_crb_addr_transform(name) \ (crb_addr_xform[QLA82XX_HW_PX_MAP_CRB_##name] = \ QLA82XX_HW_CRB_HUB_AGT_ADR_##name << 20) static void qla4_8xxx_crb_addr_transform_setup(void) { qla4_8xxx_crb_addr_transform(XDMA); qla4_8xxx_crb_addr_transform(TIMR); qla4_8xxx_crb_addr_transform(SRE); qla4_8xxx_crb_addr_transform(SQN3); qla4_8xxx_crb_addr_transform(SQN2); qla4_8xxx_crb_addr_transform(SQN1); qla4_8xxx_crb_addr_transform(SQN0); qla4_8xxx_crb_addr_transform(SQS3); qla4_8xxx_crb_addr_transform(SQS2); qla4_8xxx_crb_addr_transform(SQS1); qla4_8xxx_crb_addr_transform(SQS0); qla4_8xxx_crb_addr_transform(RPMX7); qla4_8xxx_crb_addr_transform(RPMX6); qla4_8xxx_crb_addr_transform(RPMX5); qla4_8xxx_crb_addr_transform(RPMX4); qla4_8xxx_crb_addr_transform(RPMX3); qla4_8xxx_crb_addr_transform(RPMX2); qla4_8xxx_crb_addr_transform(RPMX1); qla4_8xxx_crb_addr_transform(RPMX0); qla4_8xxx_crb_addr_transform(ROMUSB); qla4_8xxx_crb_addr_transform(SN); qla4_8xxx_crb_addr_transform(QMN); qla4_8xxx_crb_addr_transform(QMS); qla4_8xxx_crb_addr_transform(PGNI); qla4_8xxx_crb_addr_transform(PGND); qla4_8xxx_crb_addr_transform(PGN3); qla4_8xxx_crb_addr_transform(PGN2); qla4_8xxx_crb_addr_transform(PGN1); qla4_8xxx_crb_addr_transform(PGN0); qla4_8xxx_crb_addr_transform(PGSI); qla4_8xxx_crb_addr_transform(PGSD); qla4_8xxx_crb_addr_transform(PGS3); qla4_8xxx_crb_addr_transform(PGS2); qla4_8xxx_crb_addr_transform(PGS1); qla4_8xxx_crb_addr_transform(PGS0); qla4_8xxx_crb_addr_transform(PS); qla4_8xxx_crb_addr_transform(PH); qla4_8xxx_crb_addr_transform(NIU); qla4_8xxx_crb_addr_transform(I2Q); qla4_8xxx_crb_addr_transform(EG); qla4_8xxx_crb_addr_transform(MN); qla4_8xxx_crb_addr_transform(MS); qla4_8xxx_crb_addr_transform(CAS2); qla4_8xxx_crb_addr_transform(CAS1); qla4_8xxx_crb_addr_transform(CAS0); qla4_8xxx_crb_addr_transform(CAM); qla4_8xxx_crb_addr_transform(C2C1); qla4_8xxx_crb_addr_transform(C2C0); qla4_8xxx_crb_addr_transform(SMB); qla4_8xxx_crb_addr_transform(OCM0); qla4_8xxx_crb_addr_transform(I2C0); qla4_8xxx_crb_table_initialized = 1; } static struct crb_128M_2M_block_map crb_128M_2M_map[64] = { {{{0, 0, 0, 0} } }, /* 0: PCI */ {{{1, 0x0100000, 0x0102000, 0x120000}, /* 1: PCIE */ {1, 0x0110000, 0x0120000, 0x130000}, {1, 0x0120000, 0x0122000, 0x124000}, {1, 0x0130000, 0x0132000, 0x126000}, {1, 0x0140000, 0x0142000, 0x128000}, {1, 0x0150000, 0x0152000, 0x12a000}, {1, 0x0160000, 0x0170000, 0x110000}, {1, 0x0170000, 0x0172000, 0x12e000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {1, 0x01e0000, 0x01e0800, 0x122000}, {0, 0x0000000, 0x0000000, 0x000000} } }, {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */ {{{0, 0, 0, 0} } }, /* 3: */ {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */ {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE */ {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU */ {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM */ {{{1, 0x0800000, 0x0802000, 0x170000}, /* 8: SQM0 */ {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {1, 0x08f0000, 0x08f2000, 0x172000} } }, {{{1, 0x0900000, 0x0902000, 0x174000}, /* 9: SQM1*/ {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {1, 0x09f0000, 0x09f2000, 0x176000} } }, {{{0, 0x0a00000, 0x0a02000, 0x178000}, /* 10: SQM2*/ {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {1, 0x0af0000, 0x0af2000, 0x17a000} } }, {{{0, 0x0b00000, 0x0b02000, 0x17c000}, /* 11: SQM3*/ {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {1, 0x0bf0000, 0x0bf2000, 0x17e000} } }, {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */ {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */ {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */ {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */ {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */ {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */ {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */ {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */ {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */ {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */ {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */ {{{0, 0, 0, 0} } }, /* 23: */ {{{0, 0, 0, 0} } }, /* 24: */ {{{0, 0, 0, 0} } }, /* 25: */ {{{0, 0, 0, 0} } }, /* 26: */ {{{0, 0, 0, 0} } }, /* 27: */ {{{0, 0, 0, 0} } }, /* 28: */ {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */ {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */ {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */ {{{0} } }, /* 32: PCI */ {{{1, 0x2100000, 0x2102000, 0x120000}, /* 33: PCIE */ {1, 0x2110000, 0x2120000, 0x130000}, {1, 0x2120000, 0x2122000, 0x124000}, {1, 0x2130000, 0x2132000, 0x126000}, {1, 0x2140000, 0x2142000, 0x128000}, {1, 0x2150000, 0x2152000, 0x12a000}, {1, 0x2160000, 0x2170000, 0x110000}, {1, 0x2170000, 0x2172000, 0x12e000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000}, {0, 0x0000000, 0x0000000, 0x000000} } }, {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */ {{{0} } }, /* 35: */ {{{0} } }, /* 36: */ {{{0} } }, /* 37: */ {{{0} } }, /* 38: */ {{{0} } }, /* 39: */ {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */ {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */ {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */ {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */ {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */ {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */ {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */ {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */ {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */ {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */ {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */ {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */ {{{0} } }, /* 52: */ {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */ {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */ {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */ {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */ {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */ {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */ {{{0} } }, /* 59: I2C0 */ {{{0} } }, /* 60: I2C1 */ {{{1, 0x3d00000, 0x3d04000, 0x1dc000} } },/* 61: LPC */ {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */ {{{1, 0x3f00000, 0x3f01000, 0x168000} } } /* 63: P2NR0 */ }; /* * top 12 bits of crb internal address (hub, agent) */ static unsigned qla4_8xxx_crb_hub_agt[64] = { 0, QLA82XX_HW_CRB_HUB_AGT_ADR_PS, QLA82XX_HW_CRB_HUB_AGT_ADR_MN, QLA82XX_HW_CRB_HUB_AGT_ADR_MS, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_SRE, QLA82XX_HW_CRB_HUB_AGT_ADR_NIU, QLA82XX_HW_CRB_HUB_AGT_ADR_QMN, QLA82XX_HW_CRB_HUB_AGT_ADR_SQN0, QLA82XX_HW_CRB_HUB_AGT_ADR_SQN1, QLA82XX_HW_CRB_HUB_AGT_ADR_SQN2, QLA82XX_HW_CRB_HUB_AGT_ADR_SQN3, QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q, QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR, QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB, QLA82XX_HW_CRB_HUB_AGT_ADR_PGN4, QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA, QLA82XX_HW_CRB_HUB_AGT_ADR_PGN0, QLA82XX_HW_CRB_HUB_AGT_ADR_PGN1, QLA82XX_HW_CRB_HUB_AGT_ADR_PGN2, QLA82XX_HW_CRB_HUB_AGT_ADR_PGN3, QLA82XX_HW_CRB_HUB_AGT_ADR_PGND, QLA82XX_HW_CRB_HUB_AGT_ADR_PGNI, QLA82XX_HW_CRB_HUB_AGT_ADR_PGS0, QLA82XX_HW_CRB_HUB_AGT_ADR_PGS1, QLA82XX_HW_CRB_HUB_AGT_ADR_PGS2, QLA82XX_HW_CRB_HUB_AGT_ADR_PGS3, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_PGSI, QLA82XX_HW_CRB_HUB_AGT_ADR_SN, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_EG, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_PS, QLA82XX_HW_CRB_HUB_AGT_ADR_CAM, 0, 0, 0, 0, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_TIMR, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX1, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX2, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX3, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX4, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX5, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX6, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX7, QLA82XX_HW_CRB_HUB_AGT_ADR_XDMA, QLA82XX_HW_CRB_HUB_AGT_ADR_I2Q, QLA82XX_HW_CRB_HUB_AGT_ADR_ROMUSB, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX0, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX8, QLA82XX_HW_CRB_HUB_AGT_ADR_RPMX9, QLA82XX_HW_CRB_HUB_AGT_ADR_OCM0, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_SMB, QLA82XX_HW_CRB_HUB_AGT_ADR_I2C0, QLA82XX_HW_CRB_HUB_AGT_ADR_I2C1, 0, QLA82XX_HW_CRB_HUB_AGT_ADR_PGNC, 0, }; /* Device states */ static char *qdev_state[] = { "Unknown", "Cold", "Initializing", "Ready", "Need Reset", "Need Quiescent", "Failed", "Quiescent", }; /* * In: 'off' is offset from CRB space in 128M pci map * Out: 'off' is 2M pci map addr * side effect: lock crb window */ static void qla4_8xxx_pci_set_crbwindow_2M(struct scsi_qla_host *ha, ulong *off) { u32 win_read; ha->crb_win = CRB_HI(*off); writel(ha->crb_win, (void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase)); /* Read back value to make sure write has gone through before trying * to use it. */ win_read = readl((void __iomem *)(CRB_WINDOW_2M + ha->nx_pcibase)); if (win_read != ha->crb_win) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Written crbwin (0x%x) != Read crbwin (0x%x)," " off=0x%lx\n", __func__, ha->crb_win, win_read, *off)); } *off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase; } void qla4_8xxx_wr_32(struct scsi_qla_host *ha, ulong off, u32 data) { unsigned long flags = 0; int rv; rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off); BUG_ON(rv == -1); if (rv == 1) { write_lock_irqsave(&ha->hw_lock, flags); qla4_8xxx_crb_win_lock(ha); qla4_8xxx_pci_set_crbwindow_2M(ha, &off); } writel(data, (void __iomem *)off); if (rv == 1) { qla4_8xxx_crb_win_unlock(ha); write_unlock_irqrestore(&ha->hw_lock, flags); } } int qla4_8xxx_rd_32(struct scsi_qla_host *ha, ulong off) { unsigned long flags = 0; int rv; u32 data; rv = qla4_8xxx_pci_get_crb_addr_2M(ha, &off); BUG_ON(rv == -1); if (rv == 1) { write_lock_irqsave(&ha->hw_lock, flags); qla4_8xxx_crb_win_lock(ha); qla4_8xxx_pci_set_crbwindow_2M(ha, &off); } data = readl((void __iomem *)off); if (rv == 1) { qla4_8xxx_crb_win_unlock(ha); write_unlock_irqrestore(&ha->hw_lock, flags); } return data; } #define CRB_WIN_LOCK_TIMEOUT 100000000 int qla4_8xxx_crb_win_lock(struct scsi_qla_host *ha) { int i; int done = 0, timeout = 0; while (!done) { /* acquire semaphore3 from PCI HW block */ done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_LOCK)); if (done == 1) break; if (timeout >= CRB_WIN_LOCK_TIMEOUT) return -1; timeout++; /* Yield CPU */ if (!in_interrupt()) schedule(); else { for (i = 0; i < 20; i++) cpu_relax(); /*This a nop instr on i386*/ } } qla4_8xxx_wr_32(ha, QLA82XX_CRB_WIN_LOCK_ID, ha->func_num); return 0; } void qla4_8xxx_crb_win_unlock(struct scsi_qla_host *ha) { qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM7_UNLOCK)); } #define IDC_LOCK_TIMEOUT 100000000 /** * qla4_8xxx_idc_lock - hw_lock * @ha: pointer to adapter structure * * General purpose lock used to synchronize access to * CRB_DEV_STATE, CRB_DEV_REF_COUNT, etc. **/ int qla4_8xxx_idc_lock(struct scsi_qla_host *ha) { int i; int done = 0, timeout = 0; while (!done) { /* acquire semaphore5 from PCI HW block */ done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_LOCK)); if (done == 1) break; if (timeout >= IDC_LOCK_TIMEOUT) return -1; timeout++; /* Yield CPU */ if (!in_interrupt()) schedule(); else { for (i = 0; i < 20; i++) cpu_relax(); /*This a nop instr on i386*/ } } return 0; } void qla4_8xxx_idc_unlock(struct scsi_qla_host *ha) { qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM5_UNLOCK)); } int qla4_8xxx_pci_get_crb_addr_2M(struct scsi_qla_host *ha, ulong *off) { struct crb_128M_2M_sub_block_map *m; if (*off >= QLA82XX_CRB_MAX) return -1; if (*off >= QLA82XX_PCI_CAMQM && (*off < QLA82XX_PCI_CAMQM_2M_END)) { *off = (*off - QLA82XX_PCI_CAMQM) + QLA82XX_PCI_CAMQM_2M_BASE + ha->nx_pcibase; return 0; } if (*off < QLA82XX_PCI_CRBSPACE) return -1; *off -= QLA82XX_PCI_CRBSPACE; /* * Try direct map */ m = &crb_128M_2M_map[CRB_BLK(*off)].sub_block[CRB_SUBBLK(*off)]; if (m->valid && (m->start_128M <= *off) && (m->end_128M > *off)) { *off = *off + m->start_2M - m->start_128M + ha->nx_pcibase; return 0; } /* * Not in direct map, use crb window */ return 1; } /* PCI Windowing for DDR regions. */ #define QLA82XX_ADDR_IN_RANGE(addr, low, high) \ (((addr) <= (high)) && ((addr) >= (low))) /* * check memory access boundary. * used by test agent. support ddr access only for now */ static unsigned long qla4_8xxx_pci_mem_bound_check(struct scsi_qla_host *ha, unsigned long long addr, int size) { if (!QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) || !QLA82XX_ADDR_IN_RANGE(addr + size - 1, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX) || ((size != 1) && (size != 2) && (size != 4) && (size != 8))) { return 0; } return 1; } static int qla4_8xxx_pci_set_window_warning_count; static unsigned long qla4_8xxx_pci_set_window(struct scsi_qla_host *ha, unsigned long long addr) { int window; u32 win_read; if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX)) { /* DDR network side */ window = MN_WIN(addr); ha->ddr_mn_window = window; qla4_8xxx_wr_32(ha, ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window); win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb | QLA82XX_PCI_CRBSPACE); if ((win_read << 17) != window) { ql4_printk(KERN_WARNING, ha, "%s: Written MNwin (0x%x) != Read MNwin (0x%x)\n", __func__, window, win_read); } addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_DDR_NET; } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0, QLA82XX_ADDR_OCM0_MAX)) { unsigned int temp1; /* if bits 19:18&17:11 are on */ if ((addr & 0x00ff800) == 0xff800) { printk("%s: QM access not handled.\n", __func__); addr = -1UL; } window = OCM_WIN(addr); ha->ddr_mn_window = window; qla4_8xxx_wr_32(ha, ha->mn_win_crb | QLA82XX_PCI_CRBSPACE, window); win_read = qla4_8xxx_rd_32(ha, ha->mn_win_crb | QLA82XX_PCI_CRBSPACE); temp1 = ((window & 0x1FF) << 7) | ((window & 0x0FFFE0000) >> 17); if (win_read != temp1) { printk("%s: Written OCMwin (0x%x) != Read" " OCMwin (0x%x)\n", __func__, temp1, win_read); } addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_OCM0_2M; } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, QLA82XX_P3_ADDR_QDR_NET_MAX)) { /* QDR network side */ window = MS_WIN(addr); ha->qdr_sn_window = window; qla4_8xxx_wr_32(ha, ha->ms_win_crb | QLA82XX_PCI_CRBSPACE, window); win_read = qla4_8xxx_rd_32(ha, ha->ms_win_crb | QLA82XX_PCI_CRBSPACE); if (win_read != window) { printk("%s: Written MSwin (0x%x) != Read " "MSwin (0x%x)\n", __func__, window, win_read); } addr = GET_MEM_OFFS_2M(addr) + QLA82XX_PCI_QDR_NET; } else { /* * peg gdb frequently accesses memory that doesn't exist, * this limits the chit chat so debugging isn't slowed down. */ if ((qla4_8xxx_pci_set_window_warning_count++ < 8) || (qla4_8xxx_pci_set_window_warning_count%64 == 0)) { printk("%s: Warning:%s Unknown address range!\n", __func__, DRIVER_NAME); } addr = -1UL; } return addr; } /* check if address is in the same windows as the previous access */ static int qla4_8xxx_pci_is_same_window(struct scsi_qla_host *ha, unsigned long long addr) { int window; unsigned long long qdr_max; qdr_max = QLA82XX_P3_ADDR_QDR_NET_MAX; if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_DDR_NET, QLA82XX_ADDR_DDR_NET_MAX)) { /* DDR network side */ BUG(); /* MN access can not come here */ } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM0, QLA82XX_ADDR_OCM0_MAX)) { return 1; } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_OCM1, QLA82XX_ADDR_OCM1_MAX)) { return 1; } else if (QLA82XX_ADDR_IN_RANGE(addr, QLA82XX_ADDR_QDR_NET, qdr_max)) { /* QDR network side */ window = ((addr - QLA82XX_ADDR_QDR_NET) >> 22) & 0x3f; if (ha->qdr_sn_window == window) return 1; } return 0; } static int qla4_8xxx_pci_mem_read_direct(struct scsi_qla_host *ha, u64 off, void *data, int size) { unsigned long flags; void __iomem *addr; int ret = 0; u64 start; void __iomem *mem_ptr = NULL; unsigned long mem_base; unsigned long mem_page; write_lock_irqsave(&ha->hw_lock, flags); /* * If attempting to access unknown address or straddle hw windows, * do not access. */ start = qla4_8xxx_pci_set_window(ha, off); if ((start == -1UL) || (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) { write_unlock_irqrestore(&ha->hw_lock, flags); printk(KERN_ERR"%s out of bound pci memory access. " "offset is 0x%llx\n", DRIVER_NAME, off); return -1; } addr = qla4_8xxx_pci_base_offsetfset(ha, start); if (!addr) { write_unlock_irqrestore(&ha->hw_lock, flags); mem_base = pci_resource_start(ha->pdev, 0); mem_page = start & PAGE_MASK; /* Map two pages whenever user tries to access addresses in two consecutive pages. */ if (mem_page != ((start + size - 1) & PAGE_MASK)) mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE * 2); else mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE); if (mem_ptr == NULL) { *(u8 *)data = 0; return -1; } addr = mem_ptr; addr += start & (PAGE_SIZE - 1); write_lock_irqsave(&ha->hw_lock, flags); } switch (size) { case 1: *(u8 *)data = readb(addr); break; case 2: *(u16 *)data = readw(addr); break; case 4: *(u32 *)data = readl(addr); break; case 8: *(u64 *)data = readq(addr); break; default: ret = -1; break; } write_unlock_irqrestore(&ha->hw_lock, flags); if (mem_ptr) iounmap(mem_ptr); return ret; } static int qla4_8xxx_pci_mem_write_direct(struct scsi_qla_host *ha, u64 off, void *data, int size) { unsigned long flags; void __iomem *addr; int ret = 0; u64 start; void __iomem *mem_ptr = NULL; unsigned long mem_base; unsigned long mem_page; write_lock_irqsave(&ha->hw_lock, flags); /* * If attempting to access unknown address or straddle hw windows, * do not access. */ start = qla4_8xxx_pci_set_window(ha, off); if ((start == -1UL) || (qla4_8xxx_pci_is_same_window(ha, off + size - 1) == 0)) { write_unlock_irqrestore(&ha->hw_lock, flags); printk(KERN_ERR"%s out of bound pci memory access. " "offset is 0x%llx\n", DRIVER_NAME, off); return -1; } addr = qla4_8xxx_pci_base_offsetfset(ha, start); if (!addr) { write_unlock_irqrestore(&ha->hw_lock, flags); mem_base = pci_resource_start(ha->pdev, 0); mem_page = start & PAGE_MASK; /* Map two pages whenever user tries to access addresses in two consecutive pages. */ if (mem_page != ((start + size - 1) & PAGE_MASK)) mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE*2); else mem_ptr = ioremap(mem_base + mem_page, PAGE_SIZE); if (mem_ptr == NULL) return -1; addr = mem_ptr; addr += start & (PAGE_SIZE - 1); write_lock_irqsave(&ha->hw_lock, flags); } switch (size) { case 1: writeb(*(u8 *)data, addr); break; case 2: writew(*(u16 *)data, addr); break; case 4: writel(*(u32 *)data, addr); break; case 8: writeq(*(u64 *)data, addr); break; default: ret = -1; break; } write_unlock_irqrestore(&ha->hw_lock, flags); if (mem_ptr) iounmap(mem_ptr); return ret; } #define MTU_FUDGE_FACTOR 100 static unsigned long qla4_8xxx_decode_crb_addr(unsigned long addr) { int i; unsigned long base_addr, offset, pci_base; if (!qla4_8xxx_crb_table_initialized) qla4_8xxx_crb_addr_transform_setup(); pci_base = ADDR_ERROR; base_addr = addr & 0xfff00000; offset = addr & 0x000fffff; for (i = 0; i < MAX_CRB_XFORM; i++) { if (crb_addr_xform[i] == base_addr) { pci_base = i << 20; break; } } if (pci_base == ADDR_ERROR) return pci_base; else return pci_base + offset; } static long rom_max_timeout = 100; static long qla4_8xxx_rom_lock_timeout = 100; static int qla4_8xxx_rom_lock(struct scsi_qla_host *ha) { int i; int done = 0, timeout = 0; while (!done) { /* acquire semaphore2 from PCI HW block */ done = qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_LOCK)); if (done == 1) break; if (timeout >= qla4_8xxx_rom_lock_timeout) { ql4_printk(KERN_WARNING, ha, "%s: Failed to acquire rom lock", __func__); return -1; } timeout++; /* Yield CPU */ if (!in_interrupt()) schedule(); else { for (i = 0; i < 20; i++) cpu_relax(); /*This a nop instr on i386*/ } } qla4_8xxx_wr_32(ha, QLA82XX_ROM_LOCK_ID, ROM_LOCK_DRIVER); return 0; } static void qla4_8xxx_rom_unlock(struct scsi_qla_host *ha) { qla4_8xxx_rd_32(ha, QLA82XX_PCIE_REG(PCIE_SEM2_UNLOCK)); } static int qla4_8xxx_wait_rom_done(struct scsi_qla_host *ha) { long timeout = 0; long done = 0 ; while (done == 0) { done = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_STATUS); done &= 2; timeout++; if (timeout >= rom_max_timeout) { printk("%s: Timeout reached waiting for rom done", DRIVER_NAME); return -1; } } return 0; } static int qla4_8xxx_do_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp) { qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ADDRESS, addr); qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 3); qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_INSTR_OPCODE, 0xb); if (qla4_8xxx_wait_rom_done(ha)) { printk("%s: Error waiting for rom done\n", DRIVER_NAME); return -1; } /* reset abyte_cnt and dummy_byte_cnt */ qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_DUMMY_BYTE_CNT, 0); udelay(10); qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_ROM_ABYTE_CNT, 0); *valp = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_ROM_RDATA); return 0; } static int qla4_8xxx_rom_fast_read(struct scsi_qla_host *ha, int addr, int *valp) { int ret, loops = 0; while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) { udelay(100); loops++; } if (loops >= 50000) { printk("%s: qla4_8xxx_rom_lock failed\n", DRIVER_NAME); return -1; } ret = qla4_8xxx_do_rom_fast_read(ha, addr, valp); qla4_8xxx_rom_unlock(ha); return ret; } /** * This routine does CRB initialize sequence * to put the ISP into operational state **/ static int qla4_8xxx_pinit_from_rom(struct scsi_qla_host *ha, int verbose) { int addr, val; int i ; struct crb_addr_pair *buf; unsigned long off; unsigned offset, n; struct crb_addr_pair { long addr; long data; }; /* Halt all the indiviual PEGs and other blocks of the ISP */ qla4_8xxx_rom_lock(ha); /* disable all I2Q */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x10, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x14, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x18, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x1c, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x20, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_I2Q + 0x24, 0x0); /* disable all niu interrupts */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x40, 0xff); /* disable xge rx/tx */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x70000, 0x00); /* disable xg1 rx/tx */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x80000, 0x00); /* disable sideband mac */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0x90000, 0x00); /* disable ap0 mac */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xa0000, 0x00); /* disable ap1 mac */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_NIU + 0xb0000, 0x00); /* halt sre */ val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_SRE + 0x1000); qla4_8xxx_wr_32(ha, QLA82XX_CRB_SRE + 0x1000, val & (~(0x1))); /* halt epg */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_EPG + 0x1300, 0x1); /* halt timers */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x0, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x8, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x10, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x18, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x100, 0x0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_TIMER + 0x200, 0x0); /* halt pegs */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x3c, 1); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1 + 0x3c, 1); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2 + 0x3c, 1); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3 + 0x3c, 1); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_4 + 0x3c, 1); msleep(5); /* big hammer */ if (test_bit(DPC_RESET_HA, &ha->dpc_flags)) /* don't reset CAM block on reset */ qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xfeffffff); else qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0xffffffff); /* reset ms */ val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4); val |= (1 << 1); qla4_8xxx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val); msleep(20); /* unreset ms */ val = qla4_8xxx_rd_32(ha, QLA82XX_CRB_QDR_NET + 0xe4); val &= ~(1 << 1); qla4_8xxx_wr_32(ha, QLA82XX_CRB_QDR_NET + 0xe4, val); msleep(20); qla4_8xxx_rom_unlock(ha); /* Read the signature value from the flash. * Offset 0: Contain signature (0xcafecafe) * Offset 4: Offset and number of addr/value pairs * that present in CRB initialize sequence */ if (qla4_8xxx_rom_fast_read(ha, 0, &n) != 0 || n != 0xcafecafeUL || qla4_8xxx_rom_fast_read(ha, 4, &n) != 0) { ql4_printk(KERN_WARNING, ha, "[ERROR] Reading crb_init area: n: %08x\n", n); return -1; } /* Offset in flash = lower 16 bits * Number of enteries = upper 16 bits */ offset = n & 0xffffU; n = (n >> 16) & 0xffffU; /* number of addr/value pair should not exceed 1024 enteries */ if (n >= 1024) { ql4_printk(KERN_WARNING, ha, "%s: %s:n=0x%x [ERROR] Card flash not initialized.\n", DRIVER_NAME, __func__, n); return -1; } ql4_printk(KERN_INFO, ha, "%s: %d CRB init values found in ROM.\n", DRIVER_NAME, n); buf = kmalloc(n * sizeof(struct crb_addr_pair), GFP_KERNEL); if (buf == NULL) { ql4_printk(KERN_WARNING, ha, "%s: [ERROR] Unable to malloc memory.\n", DRIVER_NAME); return -1; } for (i = 0; i < n; i++) { if (qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset, &val) != 0 || qla4_8xxx_rom_fast_read(ha, 8*i + 4*offset + 4, &addr) != 0) { kfree(buf); return -1; } buf[i].addr = addr; buf[i].data = val; } for (i = 0; i < n; i++) { /* Translate internal CRB initialization * address to PCI bus address */ off = qla4_8xxx_decode_crb_addr((unsigned long)buf[i].addr) + QLA82XX_PCI_CRBSPACE; /* Not all CRB addr/value pair to be written, * some of them are skipped */ /* skip if LS bit is set*/ if (off & 0x1) { DEBUG2(ql4_printk(KERN_WARNING, ha, "Skip CRB init replay for offset = 0x%lx\n", off)); continue; } /* skipping cold reboot MAGIC */ if (off == QLA82XX_CAM_RAM(0x1fc)) continue; /* do not reset PCI */ if (off == (ROMUSB_GLB + 0xbc)) continue; /* skip core clock, so that firmware can increase the clock */ if (off == (ROMUSB_GLB + 0xc8)) continue; /* skip the function enable register */ if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION)) continue; if (off == QLA82XX_PCIE_REG(PCIE_SETUP_FUNCTION2)) continue; if ((off & 0x0ff00000) == QLA82XX_CRB_SMB) continue; if ((off & 0x0ff00000) == QLA82XX_CRB_DDR_NET) continue; if (off == ADDR_ERROR) { ql4_printk(KERN_WARNING, ha, "%s: [ERROR] Unknown addr: 0x%08lx\n", DRIVER_NAME, buf[i].addr); continue; } qla4_8xxx_wr_32(ha, off, buf[i].data); /* ISP requires much bigger delay to settle down, * else crb_window returns 0xffffffff */ if (off == QLA82XX_ROMUSB_GLB_SW_RESET) msleep(1000); /* ISP requires millisec delay between * successive CRB register updation */ msleep(1); } kfree(buf); /* Resetting the data and instruction cache */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0xec, 0x1e); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_D+0x4c, 8); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_I+0x4c, 8); /* Clear all protocol processing engines */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0x8, 0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0+0xc, 0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0x8, 0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_1+0xc, 0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0x8, 0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_2+0xc, 0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0x8, 0); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_3+0xc, 0); return 0; } static int qla4_8xxx_load_from_flash(struct scsi_qla_host *ha, uint32_t image_start) { int i, rval = 0; long size = 0; long flashaddr, memaddr; u64 data; u32 high, low; flashaddr = memaddr = ha->hw.flt_region_bootload; size = (image_start - flashaddr) / 8; DEBUG2(printk("scsi%ld: %s: bootldr=0x%lx, fw_image=0x%x\n", ha->host_no, __func__, flashaddr, image_start)); for (i = 0; i < size; i++) { if ((qla4_8xxx_rom_fast_read(ha, flashaddr, (int *)&low)) || (qla4_8xxx_rom_fast_read(ha, flashaddr + 4, (int *)&high))) { rval = -1; goto exit_load_from_flash; } data = ((u64)high << 32) | low ; rval = qla4_8xxx_pci_mem_write_2M(ha, memaddr, &data, 8); if (rval) goto exit_load_from_flash; flashaddr += 8; memaddr += 8; if (i % 0x1000 == 0) msleep(1); } udelay(100); read_lock(&ha->hw_lock); qla4_8xxx_wr_32(ha, QLA82XX_CRB_PEG_NET_0 + 0x18, 0x1020); qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, 0x80001e); read_unlock(&ha->hw_lock); exit_load_from_flash: return rval; } static int qla4_8xxx_load_fw(struct scsi_qla_host *ha, uint32_t image_start) { u32 rst; qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0); if (qla4_8xxx_pinit_from_rom(ha, 0) != QLA_SUCCESS) { printk(KERN_WARNING "%s: Error during CRB Initialization\n", __func__); return QLA_ERROR; } udelay(500); /* at this point, QM is in reset. This could be a problem if there are * incoming d* transition queue messages. QM/PCIE could wedge. * To get around this, QM is brought out of reset. */ rst = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET); /* unreset qm */ rst &= ~(1 << 28); qla4_8xxx_wr_32(ha, QLA82XX_ROMUSB_GLB_SW_RESET, rst); if (qla4_8xxx_load_from_flash(ha, image_start)) { printk("%s: Error trying to load fw from flash!\n", __func__); return QLA_ERROR; } return QLA_SUCCESS; } int qla4_8xxx_pci_mem_read_2M(struct scsi_qla_host *ha, u64 off, void *data, int size) { int i, j = 0, k, start, end, loop, sz[2], off0[2]; int shift_amount; uint32_t temp; uint64_t off8, val, mem_crb, word[2] = {0, 0}; /* * If not MN, go check for MS or invalid. */ if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX) mem_crb = QLA82XX_CRB_QDR_NET; else { mem_crb = QLA82XX_CRB_DDR_NET; if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0) return qla4_8xxx_pci_mem_read_direct(ha, off, data, size); } off8 = off & 0xfffffff0; off0[0] = off & 0xf; sz[0] = (size < (16 - off0[0])) ? size : (16 - off0[0]); shift_amount = 4; loop = ((off0[0] + size - 1) >> shift_amount) + 1; off0[1] = 0; sz[1] = size - sz[0]; for (i = 0; i < loop; i++) { temp = off8 + (i << shift_amount); qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_LO, temp); temp = 0; qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_ADDR_HI, temp); temp = MIU_TA_CTL_ENABLE; qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp); temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE; qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_CTRL, temp); for (j = 0; j < MAX_CTL_CHECK; j++) { temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL); if ((temp & MIU_TA_CTL_BUSY) == 0) break; } if (j >= MAX_CTL_CHECK) { if (printk_ratelimit()) ql4_printk(KERN_ERR, ha, "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 = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_RDDATA(k)); word[i] |= ((uint64_t)temp << (32 * (k & 1))); } } if (j >= MAX_CTL_CHECK) return -1; if ((off0[0] & 7) == 0) { val = word[0]; } else { val = ((word[0] >> (off0[0] * 8)) & (~(~0ULL << (sz[0] * 8)))) | ((word[1] & (~(~0ULL << (sz[1] * 8)))) << (sz[0] * 8)); } switch (size) { case 1: *(uint8_t *)data = val; break; case 2: *(uint16_t *)data = val; break; case 4: *(uint32_t *)data = val; break; case 8: *(uint64_t *)data = val; break; } return 0; } int qla4_8xxx_pci_mem_write_2M(struct scsi_qla_host *ha, u64 off, void *data, int size) { int i, j, ret = 0, loop, sz[2], off0; int scale, shift_amount, startword; uint32_t temp; uint64_t off8, mem_crb, tmpw, word[2] = {0, 0}; /* * If not MN, go check for MS or invalid. */ if (off >= QLA82XX_ADDR_QDR_NET && off <= QLA82XX_P3_ADDR_QDR_NET_MAX) mem_crb = QLA82XX_CRB_QDR_NET; else { mem_crb = QLA82XX_CRB_DDR_NET; if (qla4_8xxx_pci_mem_bound_check(ha, off, size) == 0) return qla4_8xxx_pci_mem_write_direct(ha, off, data, size); } off0 = off & 0x7; sz[0] = (size < (8 - off0)) ? size : (8 - off0); sz[1] = size - sz[0]; off8 = off & 0xfffffff0; loop = (((off & 0xf) + size - 1) >> 4) + 1; shift_amount = 4; scale = 2; startword = (off & 0xf)/8; for (i = 0; i < loop; i++) { if (qla4_8xxx_pci_mem_read_2M(ha, off8 + (i << shift_amount), &word[i * scale], 8)) return -1; } switch (size) { case 1: tmpw = *((uint8_t *)data); break; case 2: tmpw = *((uint16_t *)data); break; case 4: tmpw = *((uint32_t *)data); break; case 8: default: tmpw = *((uint64_t *)data); break; } if (sz[0] == 8) word[startword] = tmpw; else { word[startword] &= ~((~(~0ULL << (sz[0] * 8))) << (off0 * 8)); word[startword] |= tmpw << (off0 * 8); } if (sz[1] != 0) { word[startword+1] &= ~(~0ULL << (sz[1] * 8)); word[startword+1] |= tmpw >> (sz[0] * 8); } for (i = 0; i < loop; i++) { temp = off8 + (i << shift_amount); qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_LO, temp); temp = 0; qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_ADDR_HI, temp); temp = word[i * scale] & 0xffffffff; qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_LO, temp); temp = (word[i * scale] >> 32) & 0xffffffff; qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_WRDATA_HI, temp); temp = word[i*scale + 1] & 0xffffffff; qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_LO, temp); temp = (word[i*scale + 1] >> 32) & 0xffffffff; qla4_8xxx_wr_32(ha, mem_crb + MIU_TEST_AGT_WRDATA_UPPER_HI, temp); temp = MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE; qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp); temp = MIU_TA_CTL_START | MIU_TA_CTL_ENABLE | MIU_TA_CTL_WRITE; qla4_8xxx_wr_32(ha, mem_crb+MIU_TEST_AGT_CTRL, temp); for (j = 0; j < MAX_CTL_CHECK; j++) { temp = qla4_8xxx_rd_32(ha, mem_crb + MIU_TEST_AGT_CTRL); if ((temp & MIU_TA_CTL_BUSY) == 0) break; } if (j >= MAX_CTL_CHECK) { if (printk_ratelimit()) ql4_printk(KERN_ERR, ha, "failed to write through agent\n"); ret = -1; break; } } return ret; } static int qla4_8xxx_cmdpeg_ready(struct scsi_qla_host *ha, int pegtune_val) { u32 val = 0; int retries = 60; if (!pegtune_val) { do { val = qla4_8xxx_rd_32(ha, CRB_CMDPEG_STATE); if ((val == PHAN_INITIALIZE_COMPLETE) || (val == PHAN_INITIALIZE_ACK)) return 0; set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(500); } while (--retries); if (!retries) { pegtune_val = qla4_8xxx_rd_32(ha, QLA82XX_ROMUSB_GLB_PEGTUNE_DONE); printk(KERN_WARNING "%s: init failed, " "pegtune_val = %x\n", __func__, pegtune_val); return -1; } } return 0; } static int qla4_8xxx_rcvpeg_ready(struct scsi_qla_host *ha) { uint32_t state = 0; int loops = 0; /* Window 1 call */ read_lock(&ha->hw_lock); state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE); read_unlock(&ha->hw_lock); while ((state != PHAN_PEG_RCV_INITIALIZED) && (loops < 30000)) { udelay(100); /* Window 1 call */ read_lock(&ha->hw_lock); state = qla4_8xxx_rd_32(ha, CRB_RCVPEG_STATE); read_unlock(&ha->hw_lock); loops++; } if (loops >= 30000) { DEBUG2(ql4_printk(KERN_INFO, ha, "Receive Peg initialization not complete: 0x%x.\n", state)); return QLA_ERROR; } return QLA_SUCCESS; } void qla4_8xxx_set_drv_active(struct scsi_qla_host *ha) { uint32_t drv_active; drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); drv_active |= (1 << (ha->func_num * 4)); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active); } void qla4_8xxx_clear_drv_active(struct scsi_qla_host *ha) { uint32_t drv_active; drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); drv_active &= ~(1 << (ha->func_num * 4)); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_ACTIVE, drv_active); } static inline int qla4_8xxx_need_reset(struct scsi_qla_host *ha) { uint32_t drv_state, drv_active; int rval; drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE); rval = drv_state & (1 << (ha->func_num * 4)); if ((test_bit(AF_EEH_BUSY, &ha->flags)) && drv_active) rval = 1; return rval; } static inline void qla4_8xxx_set_rst_ready(struct scsi_qla_host *ha) { uint32_t drv_state; drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE); drv_state |= (1 << (ha->func_num * 4)); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state); } static inline void qla4_8xxx_clear_rst_ready(struct scsi_qla_host *ha) { uint32_t drv_state; drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE); drv_state &= ~(1 << (ha->func_num * 4)); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, drv_state); } static inline void qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha) { uint32_t qsnt_state; qsnt_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE); qsnt_state |= (2 << (ha->func_num * 4)); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_STATE, qsnt_state); } static int qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start) { int pcie_cap; uint16_t lnk; /* scrub dma mask expansion register */ qla4_8xxx_wr_32(ha, CRB_DMA_SHIFT, 0x55555555); /* Overwrite stale initialization register values */ qla4_8xxx_wr_32(ha, CRB_CMDPEG_STATE, 0); qla4_8xxx_wr_32(ha, CRB_RCVPEG_STATE, 0); qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS1, 0); qla4_8xxx_wr_32(ha, QLA82XX_PEG_HALT_STATUS2, 0); if (qla4_8xxx_load_fw(ha, image_start) != QLA_SUCCESS) { printk("%s: Error trying to start fw!\n", __func__); return QLA_ERROR; } /* Handshake with the card before we register the devices. */ if (qla4_8xxx_cmdpeg_ready(ha, 0) != QLA_SUCCESS) { printk("%s: Error during card handshake!\n", __func__); return QLA_ERROR; } /* Negotiated Link width */ pcie_cap = pci_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 qla4_8xxx_rcvpeg_ready(ha); } static int qla4_8xxx_try_start_fw(struct scsi_qla_host *ha) { int rval = QLA_ERROR; /* * FW Load priority: * 1) Operational firmware residing in flash. * 2) Fail */ ql4_printk(KERN_INFO, ha, "FW: Retrieving flash offsets from FLT/FDT ...\n"); rval = qla4_8xxx_get_flash_info(ha); if (rval != QLA_SUCCESS) return rval; ql4_printk(KERN_INFO, ha, "FW: Attempting to load firmware from flash...\n"); rval = qla4_8xxx_start_firmware(ha, ha->hw.flt_region_fw); if (rval != QLA_SUCCESS) { ql4_printk(KERN_ERR, ha, "FW: Load firmware from flash" " FAILED...\n"); return rval; } return rval; } static void qla4_8xxx_rom_lock_recovery(struct scsi_qla_host *ha) { if (qla4_8xxx_rom_lock(ha)) { /* Someone else is holding the lock. */ dev_info(&ha->pdev->dev, "Resetting rom_lock\n"); } /* * Either we got the lock, or someone * else died while holding it. * In either case, unlock. */ qla4_8xxx_rom_unlock(ha); } /** * qla4_8xxx_device_bootstrap - Initialize device, set DEV_READY, start fw * @ha: pointer to adapter structure * * Note: IDC lock must be held upon entry **/ static int qla4_8xxx_device_bootstrap(struct scsi_qla_host *ha) { int rval = QLA_ERROR; int i, timeout; uint32_t old_count, count; int need_reset = 0, peg_stuck = 1; need_reset = qla4_8xxx_need_reset(ha); old_count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); for (i = 0; i < 10; i++) { timeout = msleep_interruptible(200); if (timeout) { qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED); return rval; } count = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER); if (count != old_count) peg_stuck = 0; } if (need_reset) { /* We are trying to perform a recovery here. */ if (peg_stuck) qla4_8xxx_rom_lock_recovery(ha); goto dev_initialize; } else { /* Start of day for this ha context. */ if (peg_stuck) { /* Either we are the first or recovery in progress. */ qla4_8xxx_rom_lock_recovery(ha); goto dev_initialize; } else { /* Firmware already running. */ rval = QLA_SUCCESS; goto dev_ready; } } dev_initialize: /* set to DEV_INITIALIZING */ ql4_printk(KERN_INFO, ha, "HW State: INITIALIZING\n"); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_INITIALIZING); /* Driver that sets device state to initializating sets IDC version */ qla4_8xxx_wr_32(ha, QLA82XX_CRB_DRV_IDC_VERSION, QLA82XX_IDC_VERSION); qla4_8xxx_idc_unlock(ha); rval = qla4_8xxx_try_start_fw(ha); qla4_8xxx_idc_lock(ha); if (rval != QLA_SUCCESS) { ql4_printk(KERN_INFO, ha, "HW State: FAILED\n"); qla4_8xxx_clear_drv_active(ha); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED); return rval; } dev_ready: ql4_printk(KERN_INFO, ha, "HW State: READY\n"); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_READY); return rval; } /** * qla4_8xxx_need_reset_handler - Code to start reset sequence * @ha: pointer to adapter structure * * Note: IDC lock must be held upon entry **/ static void qla4_8xxx_need_reset_handler(struct scsi_qla_host *ha) { uint32_t dev_state, drv_state, drv_active; unsigned long reset_timeout; ql4_printk(KERN_INFO, ha, "Performing ISP error recovery\n"); if (test_and_clear_bit(AF_ONLINE, &ha->flags)) { qla4_8xxx_idc_unlock(ha); ha->isp_ops->disable_intrs(ha); qla4_8xxx_idc_lock(ha); } qla4_8xxx_set_rst_ready(ha); /* wait for 10 seconds for reset ack from all functions */ reset_timeout = jiffies + (ha->nx_reset_timeout * HZ); drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE); drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); ql4_printk(KERN_INFO, ha, "%s(%ld): drv_state = 0x%x, drv_active = 0x%x\n", __func__, ha->host_no, drv_state, drv_active); while (drv_state != drv_active) { if (time_after_eq(jiffies, reset_timeout)) { printk("%s: RESET TIMEOUT!\n", DRIVER_NAME); break; } qla4_8xxx_idc_unlock(ha); msleep(1000); qla4_8xxx_idc_lock(ha); drv_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_STATE); drv_active = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DRV_ACTIVE); } dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); ql4_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) { ql4_printk(KERN_INFO, ha, "HW State: COLD/RE-INIT\n"); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_COLD); } } /** * qla4_8xxx_need_qsnt_handler - Code to start qsnt * @ha: pointer to adapter structure **/ void qla4_8xxx_need_qsnt_handler(struct scsi_qla_host *ha) { qla4_8xxx_idc_lock(ha); qla4_8xxx_set_qsnt_ready(ha); qla4_8xxx_idc_unlock(ha); } /** * qla4_8xxx_device_state_handler - Adapter state machine * @ha: pointer to host adapter structure. * * Note: IDC lock must be UNLOCKED upon entry **/ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha) { uint32_t dev_state; int rval = QLA_SUCCESS; unsigned long dev_init_timeout; if (!test_bit(AF_INIT_DONE, &ha->flags)) { qla4_8xxx_idc_lock(ha); qla4_8xxx_set_drv_active(ha); qla4_8xxx_idc_unlock(ha); } dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); ql4_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); qla4_8xxx_idc_lock(ha); while (1) { if (time_after_eq(jiffies, dev_init_timeout)) { ql4_printk(KERN_WARNING, ha, "Device init failed!\n"); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_FAILED); } dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); ql4_printk(KERN_INFO, ha, "2:Device state is 0x%x = %s\n", dev_state, dev_state < MAX_STATES ? qdev_state[dev_state] : "Unknown"); /* NOTE: Make sure idc unlocked upon exit of switch statement */ switch (dev_state) { case QLA82XX_DEV_READY: goto exit; case QLA82XX_DEV_COLD: rval = qla4_8xxx_device_bootstrap(ha); goto exit; case QLA82XX_DEV_INITIALIZING: qla4_8xxx_idc_unlock(ha); msleep(1000); qla4_8xxx_idc_lock(ha); break; case QLA82XX_DEV_NEED_RESET: if (!ql4xdontresethba) { qla4_8xxx_need_reset_handler(ha); /* Update timeout value after need * reset handler */ dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ); } else { qla4_8xxx_idc_unlock(ha); msleep(1000); qla4_8xxx_idc_lock(ha); } break; case QLA82XX_DEV_NEED_QUIESCENT: /* idc locked/unlocked in handler */ qla4_8xxx_need_qsnt_handler(ha); break; case QLA82XX_DEV_QUIESCENT: qla4_8xxx_idc_unlock(ha); msleep(1000); qla4_8xxx_idc_lock(ha); break; case QLA82XX_DEV_FAILED: qla4_8xxx_idc_unlock(ha); qla4xxx_dead_adapter_cleanup(ha); rval = QLA_ERROR; qla4_8xxx_idc_lock(ha); goto exit; default: qla4_8xxx_idc_unlock(ha); qla4xxx_dead_adapter_cleanup(ha); rval = QLA_ERROR; qla4_8xxx_idc_lock(ha); goto exit; } } exit: qla4_8xxx_idc_unlock(ha); return rval; } int qla4_8xxx_load_risc(struct scsi_qla_host *ha) { int retval; /* clear the interrupt */ writel(0, &ha->qla4_8xxx_reg->host_int); readl(&ha->qla4_8xxx_reg->host_int); retval = qla4_8xxx_device_state_handler(ha); if (retval == QLA_SUCCESS && !test_bit(AF_INIT_DONE, &ha->flags)) retval = qla4xxx_request_irqs(ha); return retval; } /*****************************************************************************/ /* Flash Manipulation Routines */ /*****************************************************************************/ #define OPTROM_BURST_SIZE 0x1000 #define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4) #define FARX_DATA_FLAG BIT_31 #define FARX_ACCESS_FLASH_CONF 0x7FFD0000 #define FARX_ACCESS_FLASH_DATA 0x7FF00000 static inline uint32_t flash_conf_addr(struct ql82xx_hw_data *hw, uint32_t faddr) { return hw->flash_conf_off | faddr; } static inline uint32_t flash_data_addr(struct ql82xx_hw_data *hw, uint32_t faddr) { return hw->flash_data_off | faddr; } static uint32_t * qla4_8xxx_read_flash_data(struct scsi_qla_host *ha, uint32_t *dwptr, uint32_t faddr, uint32_t length) { uint32_t i; uint32_t val; int loops = 0; while ((qla4_8xxx_rom_lock(ha) != 0) && (loops < 50000)) { udelay(100); cond_resched(); loops++; } if (loops >= 50000) { ql4_printk(KERN_WARNING, ha, "ROM lock failed\n"); return dwptr; } /* Dword reads to flash. */ for (i = 0; i < length/4; i++, faddr += 4) { if (qla4_8xxx_do_rom_fast_read(ha, faddr, &val)) { ql4_printk(KERN_WARNING, ha, "Do ROM fast read failed\n"); goto done_read; } dwptr[i] = __constant_cpu_to_le32(val); } done_read: qla4_8xxx_rom_unlock(ha); return dwptr; } /** * Address and length are byte address **/ static uint8_t * qla4_8xxx_read_optrom_data(struct scsi_qla_host *ha, uint8_t *buf, uint32_t offset, uint32_t length) { qla4_8xxx_read_flash_data(ha, (uint32_t *)buf, offset, length); return buf; } static int qla4_8xxx_find_flt_start(struct scsi_qla_host *ha, uint32_t *start) { const char *loc, *locations[] = { "DEF", "PCI" }; /* * FLT-location structure resides after the last PCI region. */ /* Begin with sane defaults. */ loc = locations[0]; *start = FA_FLASH_LAYOUT_ADDR_82; DEBUG2(ql4_printk(KERN_INFO, ha, "FLTL[%s] = 0x%x.\n", loc, *start)); return QLA_SUCCESS; } static void qla4_8xxx_get_flt_info(struct scsi_qla_host *ha, uint32_t flt_addr) { const char *loc, *locations[] = { "DEF", "FLT" }; uint16_t *wptr; uint16_t cnt, chksum; uint32_t start; struct qla_flt_header *flt; struct qla_flt_region *region; struct ql82xx_hw_data *hw = &ha->hw; hw->flt_region_flt = flt_addr; wptr = (uint16_t *)ha->request_ring; flt = (struct qla_flt_header *)ha->request_ring; region = (struct qla_flt_region *)&flt[1]; qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring, flt_addr << 2, OPTROM_BURST_SIZE); if (*wptr == __constant_cpu_to_le16(0xffff)) goto no_flash_data; if (flt->version != __constant_cpu_to_le16(1)) { DEBUG2(ql4_printk(KERN_INFO, ha, "Unsupported FLT detected: " "version=0x%x length=0x%x checksum=0x%x.\n", le16_to_cpu(flt->version), le16_to_cpu(flt->length), le16_to_cpu(flt->checksum))); goto no_flash_data; } cnt = (sizeof(struct qla_flt_header) + le16_to_cpu(flt->length)) >> 1; for (chksum = 0; cnt; cnt--) chksum += le16_to_cpu(*wptr++); if (chksum) { DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FLT detected: " "version=0x%x length=0x%x checksum=0x%x.\n", le16_to_cpu(flt->version), le16_to_cpu(flt->length), chksum)); goto no_flash_data; } loc = locations[1]; cnt = le16_to_cpu(flt->length) / sizeof(struct qla_flt_region); for ( ; cnt; cnt--, region++) { /* Store addresses as DWORD offsets. */ start = le32_to_cpu(region->start) >> 2; DEBUG3(ql4_printk(KERN_DEBUG, ha, "FLT[%02x]: start=0x%x " "end=0x%x size=0x%x.\n", le32_to_cpu(region->code), start, le32_to_cpu(region->end) >> 2, le32_to_cpu(region->size))); switch (le32_to_cpu(region->code) & 0xff) { case FLT_REG_FDT: hw->flt_region_fdt = start; break; case FLT_REG_BOOT_CODE_82: hw->flt_region_boot = start; break; case FLT_REG_FW_82: case FLT_REG_FW_82_1: hw->flt_region_fw = start; break; case FLT_REG_BOOTLOAD_82: hw->flt_region_bootload = start; break; case FLT_REG_ISCSI_PARAM: hw->flt_iscsi_param = start; break; case FLT_REG_ISCSI_CHAP: hw->flt_region_chap = start; hw->flt_chap_size = le32_to_cpu(region->size); break; } } goto done; no_flash_data: /* Use hardcoded defaults. */ loc = locations[0]; hw->flt_region_fdt = FA_FLASH_DESCR_ADDR_82; hw->flt_region_boot = FA_BOOT_CODE_ADDR_82; hw->flt_region_bootload = FA_BOOT_LOAD_ADDR_82; hw->flt_region_fw = FA_RISC_CODE_ADDR_82; hw->flt_region_chap = FA_FLASH_ISCSI_CHAP; hw->flt_chap_size = FA_FLASH_CHAP_SIZE; done: DEBUG2(ql4_printk(KERN_INFO, ha, "FLT[%s]: flt=0x%x fdt=0x%x " "boot=0x%x bootload=0x%x fw=0x%x\n", loc, hw->flt_region_flt, hw->flt_region_fdt, hw->flt_region_boot, hw->flt_region_bootload, hw->flt_region_fw)); } static void qla4_8xxx_get_fdt_info(struct scsi_qla_host *ha) { #define FLASH_BLK_SIZE_4K 0x1000 #define FLASH_BLK_SIZE_32K 0x8000 #define FLASH_BLK_SIZE_64K 0x10000 const char *loc, *locations[] = { "MID", "FDT" }; uint16_t cnt, chksum; uint16_t *wptr; struct qla_fdt_layout *fdt; uint16_t mid = 0; uint16_t fid = 0; struct ql82xx_hw_data *hw = &ha->hw; hw->flash_conf_off = FARX_ACCESS_FLASH_CONF; hw->flash_data_off = FARX_ACCESS_FLASH_DATA; wptr = (uint16_t *)ha->request_ring; fdt = (struct qla_fdt_layout *)ha->request_ring; qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring, hw->flt_region_fdt << 2, OPTROM_BURST_SIZE); if (*wptr == __constant_cpu_to_le16(0xffff)) goto no_flash_data; if (fdt->sig[0] != 'Q' || fdt->sig[1] != 'L' || fdt->sig[2] != 'I' || fdt->sig[3] != 'D') goto no_flash_data; for (cnt = 0, chksum = 0; cnt < sizeof(struct qla_fdt_layout) >> 1; cnt++) chksum += le16_to_cpu(*wptr++); if (chksum) { DEBUG2(ql4_printk(KERN_INFO, ha, "Inconsistent FDT detected: " "checksum=0x%x id=%c version=0x%x.\n", chksum, fdt->sig[0], le16_to_cpu(fdt->version))); goto no_flash_data; } loc = locations[1]; mid = le16_to_cpu(fdt->man_id); fid = le16_to_cpu(fdt->id); hw->fdt_wrt_disable = fdt->wrt_disable_bits; hw->fdt_erase_cmd = flash_conf_addr(hw, 0x0300 | fdt->erase_cmd); hw->fdt_block_size = le32_to_cpu(fdt->block_size); if (fdt->unprotect_sec_cmd) { hw->fdt_unprotect_sec_cmd = flash_conf_addr(hw, 0x0300 | fdt->unprotect_sec_cmd); hw->fdt_protect_sec_cmd = fdt->protect_sec_cmd ? flash_conf_addr(hw, 0x0300 | fdt->protect_sec_cmd) : flash_conf_addr(hw, 0x0336); } goto done; no_flash_data: loc = locations[0]; hw->fdt_block_size = FLASH_BLK_SIZE_64K; done: DEBUG2(ql4_printk(KERN_INFO, ha, "FDT[%s]: (0x%x/0x%x) erase=0x%x " "pro=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid, hw->fdt_erase_cmd, hw->fdt_protect_sec_cmd, hw->fdt_unprotect_sec_cmd, hw->fdt_wrt_disable, hw->fdt_block_size)); } static void qla4_8xxx_get_idc_param(struct scsi_qla_host *ha) { #define QLA82XX_IDC_PARAM_ADDR 0x003e885c uint32_t *wptr; if (!is_qla8022(ha)) return; wptr = (uint32_t *)ha->request_ring; qla4_8xxx_read_optrom_data(ha, (uint8_t *)ha->request_ring, QLA82XX_IDC_PARAM_ADDR , 8); if (*wptr == __constant_cpu_to_le32(0xffffffff)) { ha->nx_dev_init_timeout = ROM_DEV_INIT_TIMEOUT; ha->nx_reset_timeout = ROM_DRV_RESET_ACK_TIMEOUT; } else { ha->nx_dev_init_timeout = le32_to_cpu(*wptr++); ha->nx_reset_timeout = le32_to_cpu(*wptr); } DEBUG2(ql4_printk(KERN_DEBUG, ha, "ha->nx_dev_init_timeout = %d\n", ha->nx_dev_init_timeout)); DEBUG2(ql4_printk(KERN_DEBUG, ha, "ha->nx_reset_timeout = %d\n", ha->nx_reset_timeout)); return; } int qla4_8xxx_get_flash_info(struct scsi_qla_host *ha) { int ret; uint32_t flt_addr; ret = qla4_8xxx_find_flt_start(ha, &flt_addr); if (ret != QLA_SUCCESS) return ret; qla4_8xxx_get_flt_info(ha, flt_addr); qla4_8xxx_get_fdt_info(ha); qla4_8xxx_get_idc_param(ha); return QLA_SUCCESS; } /** * qla4_8xxx_stop_firmware - stops firmware on specified adapter instance * @ha: pointer to host adapter structure. * * Remarks: * For iSCSI, throws away all I/O and AENs into bit bucket, so they will * not be available after successful return. Driver must cleanup potential * outstanding I/O's after calling this funcion. **/ int qla4_8xxx_stop_firmware(struct scsi_qla_host *ha) { int status; uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); mbox_cmd[0] = MBOX_CMD_STOP_FW; status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]); DEBUG2(printk("scsi%ld: %s: status = %d\n", ha->host_no, __func__, status)); return status; } /** * qla4_8xxx_isp_reset - Resets ISP and aborts all outstanding commands. * @ha: pointer to host adapter structure. **/ int qla4_8xxx_isp_reset(struct scsi_qla_host *ha) { int rval; uint32_t dev_state; qla4_8xxx_idc_lock(ha); dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE); if (dev_state == QLA82XX_DEV_READY) { ql4_printk(KERN_INFO, ha, "HW State: NEED RESET\n"); qla4_8xxx_wr_32(ha, QLA82XX_CRB_DEV_STATE, QLA82XX_DEV_NEED_RESET); } else ql4_printk(KERN_INFO, ha, "HW State: DEVICE INITIALIZING\n"); qla4_8xxx_idc_unlock(ha); rval = qla4_8xxx_device_state_handler(ha); qla4_8xxx_idc_lock(ha); qla4_8xxx_clear_rst_ready(ha); qla4_8xxx_idc_unlock(ha); if (rval == QLA_SUCCESS) clear_bit(AF_FW_RECOVERY, &ha->flags); return rval; } /** * qla4_8xxx_get_sys_info - get adapter MAC address(es) and serial number * @ha: pointer to host adapter structure. * **/ int qla4_8xxx_get_sys_info(struct scsi_qla_host *ha) { uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; struct mbx_sys_info *sys_info; dma_addr_t sys_info_dma; int status = QLA_ERROR; sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info), &sys_info_dma, GFP_KERNEL); if (sys_info == NULL) { DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n", ha->host_no, __func__)); return status; } memset(sys_info, 0, sizeof(*sys_info)); memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); mbox_cmd[0] = MBOX_CMD_GET_SYS_INFO; mbox_cmd[1] = LSDW(sys_info_dma); mbox_cmd[2] = MSDW(sys_info_dma); mbox_cmd[4] = sizeof(*sys_info); if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 6, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO failed\n", ha->host_no, __func__)); goto exit_validate_mac82; } /* Make sure we receive the minimum required data to cache internally */ if (mbox_sts[4] < offsetof(struct mbx_sys_info, reserved)) { DEBUG2(printk("scsi%ld: %s: GET_SYS_INFO data receive" " error (%x)\n", ha->host_no, __func__, mbox_sts[4])); goto exit_validate_mac82; } /* Save M.A.C. address & serial_number */ ha->port_num = sys_info->port_num; memcpy(ha->my_mac, &sys_info->mac_addr[0], min(sizeof(ha->my_mac), sizeof(sys_info->mac_addr))); memcpy(ha->serial_number, &sys_info->serial_number, min(sizeof(ha->serial_number), sizeof(sys_info->serial_number))); memcpy(ha->model_name, &sys_info->board_id_str, min(sizeof(ha->model_name), sizeof(sys_info->board_id_str))); ha->phy_port_cnt = sys_info->phys_port_cnt; ha->phy_port_num = sys_info->port_num; ha->iscsi_pci_func_cnt = sys_info->iscsi_pci_func_cnt; DEBUG2(printk("scsi%ld: %s: " "mac %02x:%02x:%02x:%02x:%02x:%02x " "serial %s\n", ha->host_no, __func__, ha->my_mac[0], ha->my_mac[1], ha->my_mac[2], ha->my_mac[3], ha->my_mac[4], ha->my_mac[5], ha->serial_number)); status = QLA_SUCCESS; exit_validate_mac82: dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info, sys_info_dma); return status; } /* Interrupt handling helpers. */ static int qla4_8xxx_mbx_intr_enable(struct scsi_qla_host *ha) { uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__)); memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS; mbox_cmd[1] = INTR_ENABLE; if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n", __func__, mbox_sts[0])); return QLA_ERROR; } return QLA_SUCCESS; } static int qla4_8xxx_mbx_intr_disable(struct scsi_qla_host *ha) { uint32_t mbox_cmd[MBOX_REG_COUNT]; uint32_t mbox_sts[MBOX_REG_COUNT]; DEBUG2(ql4_printk(KERN_INFO, ha, "%s\n", __func__)); memset(&mbox_cmd, 0, sizeof(mbox_cmd)); memset(&mbox_sts, 0, sizeof(mbox_sts)); mbox_cmd[0] = MBOX_CMD_ENABLE_INTRS; mbox_cmd[1] = INTR_DISABLE; if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) != QLA_SUCCESS) { DEBUG2(ql4_printk(KERN_INFO, ha, "%s: MBOX_CMD_ENABLE_INTRS failed (0x%04x)\n", __func__, mbox_sts[0])); return QLA_ERROR; } return QLA_SUCCESS; } void qla4_8xxx_enable_intrs(struct scsi_qla_host *ha) { qla4_8xxx_mbx_intr_enable(ha); spin_lock_irq(&ha->hardware_lock); /* BIT 10 - reset */ qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0xfbff); spin_unlock_irq(&ha->hardware_lock); set_bit(AF_INTERRUPTS_ON, &ha->flags); } void qla4_8xxx_disable_intrs(struct scsi_qla_host *ha) { if (test_and_clear_bit(AF_INTERRUPTS_ON, &ha->flags)) qla4_8xxx_mbx_intr_disable(ha); spin_lock_irq(&ha->hardware_lock); /* BIT 10 - set */ qla4_8xxx_wr_32(ha, ha->nx_legacy_intr.tgt_mask_reg, 0x0400); spin_unlock_irq(&ha->hardware_lock); } struct ql4_init_msix_entry { uint16_t entry; uint16_t index; const char *name; irq_handler_t handler; }; static struct ql4_init_msix_entry qla4_8xxx_msix_entries[QLA_MSIX_ENTRIES] = { { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT, "qla4xxx (default)", (irq_handler_t)qla4_8xxx_default_intr_handler }, { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q, "qla4xxx (rsp_q)", (irq_handler_t)qla4_8xxx_msix_rsp_q }, }; void qla4_8xxx_disable_msix(struct scsi_qla_host *ha) { int i; struct ql4_msix_entry *qentry; for (i = 0; i < QLA_MSIX_ENTRIES; i++) { qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index]; if (qentry->have_irq) { free_irq(qentry->msix_vector, ha); DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n", __func__, qla4_8xxx_msix_entries[i].name)); } } pci_disable_msix(ha->pdev); clear_bit(AF_MSIX_ENABLED, &ha->flags); } int qla4_8xxx_enable_msix(struct scsi_qla_host *ha) { int i, ret; struct msix_entry entries[QLA_MSIX_ENTRIES]; struct ql4_msix_entry *qentry; for (i = 0; i < QLA_MSIX_ENTRIES; i++) entries[i].entry = qla4_8xxx_msix_entries[i].entry; ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries)); if (ret) { ql4_printk(KERN_WARNING, ha, "MSI-X: Failed to enable support -- %d/%d\n", QLA_MSIX_ENTRIES, ret); goto msix_out; } set_bit(AF_MSIX_ENABLED, &ha->flags); for (i = 0; i < QLA_MSIX_ENTRIES; i++) { qentry = &ha->msix_entries[qla4_8xxx_msix_entries[i].index]; qentry->msix_vector = entries[i].vector; qentry->msix_entry = entries[i].entry; qentry->have_irq = 0; ret = request_irq(qentry->msix_vector, qla4_8xxx_msix_entries[i].handler, 0, qla4_8xxx_msix_entries[i].name, ha); if (ret) { ql4_printk(KERN_WARNING, ha, "MSI-X: Unable to register handler -- %x/%d.\n", qla4_8xxx_msix_entries[i].index, ret); qla4_8xxx_disable_msix(ha); goto msix_out; } qentry->have_irq = 1; DEBUG2(ql4_printk(KERN_INFO, ha, "%s: %s\n", __func__, qla4_8xxx_msix_entries[i].name)); } msix_out: return ret; }