/*
- mvsas.c - Marvell 88SE6440 SAS/SATA support
+ mv_sas.c - Marvell 88SE6440 SAS/SATA support
Copyright 2007 Red Hat, Inc.
Copyright 2008 Marvell. <kewei@marvell.com>
*/
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/ctype.h>
-#include <scsi/libsas.h>
-#include <scsi/scsi_tcq.h>
-#include <scsi/sas_ata.h>
-#include <asm/io.h>
-
-#define DRV_NAME "mvsas"
-#define DRV_VERSION "0.5.2"
-#define _MV_DUMP 0
-#define MVS_DISABLE_NVRAM
-#define MVS_DISABLE_MSI
-
-#define mr32(reg) readl(regs + MVS_##reg)
-#define mw32(reg,val) writel((val), regs + MVS_##reg)
-#define mw32_f(reg,val) do { \
- writel((val), regs + MVS_##reg); \
- readl(regs + MVS_##reg); \
- } while (0)
-
-#define MVS_ID_NOT_MAPPED 0x7f
-#define MVS_CHIP_SLOT_SZ (1U << mvi->chip->slot_width)
+#include "mv_sas.h"
+#include "mv_64xx.h"
+#include "mv_chips.h"
/* offset for D2H FIS in the Received FIS List Structure */
#define SATA_RECEIVED_D2H_FIS(reg_set) \
#define UNASSOC_D2H_FIS(id) \
((void *) mvi->rx_fis + 0x100 * id)
-#define for_each_phy(__lseq_mask, __mc, __lseq, __rest) \
- for ((__mc) = (__lseq_mask), (__lseq) = 0; \
- (__mc) != 0 && __rest; \
- (++__lseq), (__mc) >>= 1)
-
-/* driver compile-time configuration */
-enum driver_configuration {
- MVS_TX_RING_SZ = 1024, /* TX ring size (12-bit) */
- MVS_RX_RING_SZ = 1024, /* RX ring size (12-bit) */
- /* software requires power-of-2
- ring size */
-
- MVS_SLOTS = 512, /* command slots */
- MVS_SLOT_BUF_SZ = 8192, /* cmd tbl + IU + status + PRD */
- MVS_SSP_CMD_SZ = 64, /* SSP command table buffer size */
- MVS_ATA_CMD_SZ = 96, /* SATA command table buffer size */
- MVS_OAF_SZ = 64, /* Open address frame buffer size */
-
- MVS_RX_FIS_COUNT = 17, /* Optional rx'd FISs (max 17) */
-
- MVS_QUEUE_SIZE = 30, /* Support Queue depth */
- MVS_CAN_QUEUE = MVS_SLOTS - 1, /* SCSI Queue depth */
-};
-
-/* unchangeable hardware details */
-enum hardware_details {
- MVS_MAX_PHYS = 8, /* max. possible phys */
- MVS_MAX_PORTS = 8, /* max. possible ports */
- MVS_RX_FISL_SZ = 0x400 + (MVS_RX_FIS_COUNT * 0x100),
-};
-
-/* peripheral registers (BAR2) */
-enum peripheral_registers {
- SPI_CTL = 0x10, /* EEPROM control */
- SPI_CMD = 0x14, /* EEPROM command */
- SPI_DATA = 0x18, /* EEPROM data */
-};
-
-enum peripheral_register_bits {
- TWSI_RDY = (1U << 7), /* EEPROM interface ready */
- TWSI_RD = (1U << 4), /* EEPROM read access */
-
- SPI_ADDR_MASK = 0x3ffff, /* bits 17:0 */
-};
-
-/* enhanced mode registers (BAR4) */
-enum hw_registers {
- MVS_GBL_CTL = 0x04, /* global control */
- MVS_GBL_INT_STAT = 0x08, /* global irq status */
- MVS_GBL_PI = 0x0C, /* ports implemented bitmask */
- MVS_GBL_PORT_TYPE = 0xa0, /* port type */
-
- MVS_CTL = 0x100, /* SAS/SATA port configuration */
- MVS_PCS = 0x104, /* SAS/SATA port control/status */
- MVS_CMD_LIST_LO = 0x108, /* cmd list addr */
- MVS_CMD_LIST_HI = 0x10C,
- MVS_RX_FIS_LO = 0x110, /* RX FIS list addr */
- MVS_RX_FIS_HI = 0x114,
-
- MVS_TX_CFG = 0x120, /* TX configuration */
- MVS_TX_LO = 0x124, /* TX (delivery) ring addr */
- MVS_TX_HI = 0x128,
-
- MVS_TX_PROD_IDX = 0x12C, /* TX producer pointer */
- MVS_TX_CONS_IDX = 0x130, /* TX consumer pointer (RO) */
- MVS_RX_CFG = 0x134, /* RX configuration */
- MVS_RX_LO = 0x138, /* RX (completion) ring addr */
- MVS_RX_HI = 0x13C,
- MVS_RX_CONS_IDX = 0x140, /* RX consumer pointer (RO) */
-
- MVS_INT_COAL = 0x148, /* Int coalescing config */
- MVS_INT_COAL_TMOUT = 0x14C, /* Int coalescing timeout */
- MVS_INT_STAT = 0x150, /* Central int status */
- MVS_INT_MASK = 0x154, /* Central int enable */
- MVS_INT_STAT_SRS = 0x158, /* SATA register set status */
- MVS_INT_MASK_SRS = 0x15C,
-
- /* ports 1-3 follow after this */
- MVS_P0_INT_STAT = 0x160, /* port0 interrupt status */
- MVS_P0_INT_MASK = 0x164, /* port0 interrupt mask */
- MVS_P4_INT_STAT = 0x200, /* Port 4 interrupt status */
- MVS_P4_INT_MASK = 0x204, /* Port 4 interrupt enable mask */
-
- /* ports 1-3 follow after this */
- MVS_P0_SER_CTLSTAT = 0x180, /* port0 serial control/status */
- MVS_P4_SER_CTLSTAT = 0x220, /* port4 serial control/status */
-
- MVS_CMD_ADDR = 0x1B8, /* Command register port (addr) */
- MVS_CMD_DATA = 0x1BC, /* Command register port (data) */
-
- /* ports 1-3 follow after this */
- MVS_P0_CFG_ADDR = 0x1C0, /* port0 phy register address */
- MVS_P0_CFG_DATA = 0x1C4, /* port0 phy register data */
- MVS_P4_CFG_ADDR = 0x230, /* Port 4 config address */
- MVS_P4_CFG_DATA = 0x234, /* Port 4 config data */
-
- /* ports 1-3 follow after this */
- MVS_P0_VSR_ADDR = 0x1E0, /* port0 VSR address */
- MVS_P0_VSR_DATA = 0x1E4, /* port0 VSR data */
- MVS_P4_VSR_ADDR = 0x250, /* port 4 VSR addr */
- MVS_P4_VSR_DATA = 0x254, /* port 4 VSR data */
-};
-
-enum hw_register_bits {
- /* MVS_GBL_CTL */
- INT_EN = (1U << 1), /* Global int enable */
- HBA_RST = (1U << 0), /* HBA reset */
-
- /* MVS_GBL_INT_STAT */
- INT_XOR = (1U << 4), /* XOR engine event */
- INT_SAS_SATA = (1U << 0), /* SAS/SATA event */
-
- /* MVS_GBL_PORT_TYPE */ /* shl for ports 1-3 */
- SATA_TARGET = (1U << 16), /* port0 SATA target enable */
- MODE_AUTO_DET_PORT7 = (1U << 15), /* port0 SAS/SATA autodetect */
- MODE_AUTO_DET_PORT6 = (1U << 14),
- MODE_AUTO_DET_PORT5 = (1U << 13),
- MODE_AUTO_DET_PORT4 = (1U << 12),
- MODE_AUTO_DET_PORT3 = (1U << 11),
- MODE_AUTO_DET_PORT2 = (1U << 10),
- MODE_AUTO_DET_PORT1 = (1U << 9),
- MODE_AUTO_DET_PORT0 = (1U << 8),
- MODE_AUTO_DET_EN = MODE_AUTO_DET_PORT0 | MODE_AUTO_DET_PORT1 |
- MODE_AUTO_DET_PORT2 | MODE_AUTO_DET_PORT3 |
- MODE_AUTO_DET_PORT4 | MODE_AUTO_DET_PORT5 |
- MODE_AUTO_DET_PORT6 | MODE_AUTO_DET_PORT7,
- MODE_SAS_PORT7_MASK = (1U << 7), /* port0 SAS(1), SATA(0) mode */
- MODE_SAS_PORT6_MASK = (1U << 6),
- MODE_SAS_PORT5_MASK = (1U << 5),
- MODE_SAS_PORT4_MASK = (1U << 4),
- MODE_SAS_PORT3_MASK = (1U << 3),
- MODE_SAS_PORT2_MASK = (1U << 2),
- MODE_SAS_PORT1_MASK = (1U << 1),
- MODE_SAS_PORT0_MASK = (1U << 0),
- MODE_SAS_SATA = MODE_SAS_PORT0_MASK | MODE_SAS_PORT1_MASK |
- MODE_SAS_PORT2_MASK | MODE_SAS_PORT3_MASK |
- MODE_SAS_PORT4_MASK | MODE_SAS_PORT5_MASK |
- MODE_SAS_PORT6_MASK | MODE_SAS_PORT7_MASK,
-
- /* SAS_MODE value may be
- * dictated (in hw) by values
- * of SATA_TARGET & AUTO_DET
- */
-
- /* MVS_TX_CFG */
- TX_EN = (1U << 16), /* Enable TX */
- TX_RING_SZ_MASK = 0xfff, /* TX ring size, bits 11:0 */
-
- /* MVS_RX_CFG */
- RX_EN = (1U << 16), /* Enable RX */
- RX_RING_SZ_MASK = 0xfff, /* RX ring size, bits 11:0 */
-
- /* MVS_INT_COAL */
- COAL_EN = (1U << 16), /* Enable int coalescing */
-
- /* MVS_INT_STAT, MVS_INT_MASK */
- CINT_I2C = (1U << 31), /* I2C event */
- CINT_SW0 = (1U << 30), /* software event 0 */
- CINT_SW1 = (1U << 29), /* software event 1 */
- CINT_PRD_BC = (1U << 28), /* PRD BC err for read cmd */
- CINT_DMA_PCIE = (1U << 27), /* DMA to PCIE timeout */
- CINT_MEM = (1U << 26), /* int mem parity err */
- CINT_I2C_SLAVE = (1U << 25), /* slave I2C event */
- CINT_SRS = (1U << 3), /* SRS event */
- CINT_CI_STOP = (1U << 1), /* cmd issue stopped */
- CINT_DONE = (1U << 0), /* cmd completion */
-
- /* shl for ports 1-3 */
- CINT_PORT_STOPPED = (1U << 16), /* port0 stopped */
- CINT_PORT = (1U << 8), /* port0 event */
- CINT_PORT_MASK_OFFSET = 8,
- CINT_PORT_MASK = (0xFF << CINT_PORT_MASK_OFFSET),
-
- /* TX (delivery) ring bits */
- TXQ_CMD_SHIFT = 29,
- TXQ_CMD_SSP = 1, /* SSP protocol */
- TXQ_CMD_SMP = 2, /* SMP protocol */
- TXQ_CMD_STP = 3, /* STP/SATA protocol */
- TXQ_CMD_SSP_FREE_LIST = 4, /* add to SSP targ free list */
- TXQ_CMD_SLOT_RESET = 7, /* reset command slot */
- TXQ_MODE_I = (1U << 28), /* mode: 0=target,1=initiator */
- TXQ_PRIO_HI = (1U << 27), /* priority: 0=normal, 1=high */
- TXQ_SRS_SHIFT = 20, /* SATA register set */
- TXQ_SRS_MASK = 0x7f,
- TXQ_PHY_SHIFT = 12, /* PHY bitmap */
- TXQ_PHY_MASK = 0xff,
- TXQ_SLOT_MASK = 0xfff, /* slot number */
-
- /* RX (completion) ring bits */
- RXQ_GOOD = (1U << 23), /* Response good */
- RXQ_SLOT_RESET = (1U << 21), /* Slot reset complete */
- RXQ_CMD_RX = (1U << 20), /* target cmd received */
- RXQ_ATTN = (1U << 19), /* attention */
- RXQ_RSP = (1U << 18), /* response frame xfer'd */
- RXQ_ERR = (1U << 17), /* err info rec xfer'd */
- RXQ_DONE = (1U << 16), /* cmd complete */
- RXQ_SLOT_MASK = 0xfff, /* slot number */
-
- /* mvs_cmd_hdr bits */
- MCH_PRD_LEN_SHIFT = 16, /* 16-bit PRD table len */
- MCH_SSP_FR_TYPE_SHIFT = 13, /* SSP frame type */
-
- /* SSP initiator only */
- MCH_SSP_FR_CMD = 0x0, /* COMMAND frame */
-
- /* SSP initiator or target */
- MCH_SSP_FR_TASK = 0x1, /* TASK frame */
-
- /* SSP target only */
- MCH_SSP_FR_XFER_RDY = 0x4, /* XFER_RDY frame */
- MCH_SSP_FR_RESP = 0x5, /* RESPONSE frame */
- MCH_SSP_FR_READ = 0x6, /* Read DATA frame(s) */
- MCH_SSP_FR_READ_RESP = 0x7, /* ditto, plus RESPONSE */
-
- MCH_PASSTHRU = (1U << 12), /* pass-through (SSP) */
- MCH_FBURST = (1U << 11), /* first burst (SSP) */
- MCH_CHK_LEN = (1U << 10), /* chk xfer len (SSP) */
- MCH_RETRY = (1U << 9), /* tport layer retry (SSP) */
- MCH_PROTECTION = (1U << 8), /* protection info rec (SSP) */
- MCH_RESET = (1U << 7), /* Reset (STP/SATA) */
- MCH_FPDMA = (1U << 6), /* First party DMA (STP/SATA) */
- MCH_ATAPI = (1U << 5), /* ATAPI (STP/SATA) */
- MCH_BIST = (1U << 4), /* BIST activate (STP/SATA) */
- MCH_PMP_MASK = 0xf, /* PMP from cmd FIS (STP/SATA)*/
-
- CCTL_RST = (1U << 5), /* port logic reset */
-
- /* 0(LSB first), 1(MSB first) */
- CCTL_ENDIAN_DATA = (1U << 3), /* PRD data */
- CCTL_ENDIAN_RSP = (1U << 2), /* response frame */
- CCTL_ENDIAN_OPEN = (1U << 1), /* open address frame */
- CCTL_ENDIAN_CMD = (1U << 0), /* command table */
-
- /* MVS_Px_SER_CTLSTAT (per-phy control) */
- PHY_SSP_RST = (1U << 3), /* reset SSP link layer */
- PHY_BCAST_CHG = (1U << 2), /* broadcast(change) notif */
- PHY_RST_HARD = (1U << 1), /* hard reset + phy reset */
- PHY_RST = (1U << 0), /* phy reset */
- PHY_MIN_SPP_PHYS_LINK_RATE_MASK = (0xF << 8),
- PHY_MAX_SPP_PHYS_LINK_RATE_MASK = (0xF << 12),
- PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET = (16),
- PHY_NEG_SPP_PHYS_LINK_RATE_MASK =
- (0xF << PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET),
- PHY_READY_MASK = (1U << 20),
-
- /* MVS_Px_INT_STAT, MVS_Px_INT_MASK (per-phy events) */
- PHYEV_DEC_ERR = (1U << 24), /* Phy Decoding Error */
- PHYEV_UNASSOC_FIS = (1U << 19), /* unassociated FIS rx'd */
- PHYEV_AN = (1U << 18), /* SATA async notification */
- PHYEV_BIST_ACT = (1U << 17), /* BIST activate FIS */
- PHYEV_SIG_FIS = (1U << 16), /* signature FIS */
- PHYEV_POOF = (1U << 12), /* phy ready from 1 -> 0 */
- PHYEV_IU_BIG = (1U << 11), /* IU too long err */
- PHYEV_IU_SMALL = (1U << 10), /* IU too short err */
- PHYEV_UNK_TAG = (1U << 9), /* unknown tag */
- PHYEV_BROAD_CH = (1U << 8), /* broadcast(CHANGE) */
- PHYEV_COMWAKE = (1U << 7), /* COMWAKE rx'd */
- PHYEV_PORT_SEL = (1U << 6), /* port selector present */
- PHYEV_HARD_RST = (1U << 5), /* hard reset rx'd */
- PHYEV_ID_TMOUT = (1U << 4), /* identify timeout */
- PHYEV_ID_FAIL = (1U << 3), /* identify failed */
- PHYEV_ID_DONE = (1U << 2), /* identify done */
- PHYEV_HARD_RST_DONE = (1U << 1), /* hard reset done */
- PHYEV_RDY_CH = (1U << 0), /* phy ready changed state */
-
- /* MVS_PCS */
- PCS_EN_SATA_REG_SHIFT = (16), /* Enable SATA Register Set */
- PCS_EN_PORT_XMT_SHIFT = (12), /* Enable Port Transmit */
- PCS_EN_PORT_XMT_SHIFT2 = (8), /* For 6480 */
- PCS_SATA_RETRY = (1U << 8), /* retry ctl FIS on R_ERR */
- PCS_RSP_RX_EN = (1U << 7), /* raw response rx */
- PCS_SELF_CLEAR = (1U << 5), /* self-clearing int mode */
- PCS_FIS_RX_EN = (1U << 4), /* FIS rx enable */
- PCS_CMD_STOP_ERR = (1U << 3), /* cmd stop-on-err enable */
- PCS_CMD_RST = (1U << 1), /* reset cmd issue */
- PCS_CMD_EN = (1U << 0), /* enable cmd issue */
-
- /* Port n Attached Device Info */
- PORT_DEV_SSP_TRGT = (1U << 19),
- PORT_DEV_SMP_TRGT = (1U << 18),
- PORT_DEV_STP_TRGT = (1U << 17),
- PORT_DEV_SSP_INIT = (1U << 11),
- PORT_DEV_SMP_INIT = (1U << 10),
- PORT_DEV_STP_INIT = (1U << 9),
- PORT_PHY_ID_MASK = (0xFFU << 24),
- PORT_DEV_TRGT_MASK = (0x7U << 17),
- PORT_DEV_INIT_MASK = (0x7U << 9),
- PORT_DEV_TYPE_MASK = (0x7U << 0),
-
- /* Port n PHY Status */
- PHY_RDY = (1U << 2),
- PHY_DW_SYNC = (1U << 1),
- PHY_OOB_DTCTD = (1U << 0),
-
- /* VSR */
- /* PHYMODE 6 (CDB) */
- PHY_MODE6_LATECLK = (1U << 29), /* Lock Clock */
- PHY_MODE6_DTL_SPEED = (1U << 27), /* Digital Loop Speed */
- PHY_MODE6_FC_ORDER = (1U << 26), /* Fibre Channel Mode Order*/
- PHY_MODE6_MUCNT_EN = (1U << 24), /* u Count Enable */
- PHY_MODE6_SEL_MUCNT_LEN = (1U << 22), /* Training Length Select */
- PHY_MODE6_SELMUPI = (1U << 20), /* Phase Multi Select (init) */
- PHY_MODE6_SELMUPF = (1U << 18), /* Phase Multi Select (final) */
- PHY_MODE6_SELMUFF = (1U << 16), /* Freq Loop Multi Sel(final) */
- PHY_MODE6_SELMUFI = (1U << 14), /* Freq Loop Multi Sel(init) */
- PHY_MODE6_FREEZE_LOOP = (1U << 12), /* Freeze Rx CDR Loop */
- PHY_MODE6_INT_RXFOFFS = (1U << 3), /* Rx CDR Freq Loop Enable */
- PHY_MODE6_FRC_RXFOFFS = (1U << 2), /* Initial Rx CDR Offset */
- PHY_MODE6_STAU_0D8 = (1U << 1), /* Rx CDR Freq Loop Saturate */
- PHY_MODE6_RXSAT_DIS = (1U << 0), /* Saturate Ctl */
-};
-
-enum mvs_info_flags {
- MVF_MSI = (1U << 0), /* MSI is enabled */
- MVF_PHY_PWR_FIX = (1U << 1), /* bug workaround */
-};
-
-enum sas_cmd_port_registers {
- CMD_CMRST_OOB_DET = 0x100, /* COMRESET OOB detect register */
- CMD_CMWK_OOB_DET = 0x104, /* COMWAKE OOB detect register */
- CMD_CMSAS_OOB_DET = 0x108, /* COMSAS OOB detect register */
- CMD_BRST_OOB_DET = 0x10c, /* burst OOB detect register */
- CMD_OOB_SPACE = 0x110, /* OOB space control register */
- CMD_OOB_BURST = 0x114, /* OOB burst control register */
- CMD_PHY_TIMER = 0x118, /* PHY timer control register */
- CMD_PHY_CONFIG0 = 0x11c, /* PHY config register 0 */
- CMD_PHY_CONFIG1 = 0x120, /* PHY config register 1 */
- CMD_SAS_CTL0 = 0x124, /* SAS control register 0 */
- CMD_SAS_CTL1 = 0x128, /* SAS control register 1 */
- CMD_SAS_CTL2 = 0x12c, /* SAS control register 2 */
- CMD_SAS_CTL3 = 0x130, /* SAS control register 3 */
- CMD_ID_TEST = 0x134, /* ID test register */
- CMD_PL_TIMER = 0x138, /* PL timer register */
- CMD_WD_TIMER = 0x13c, /* WD timer register */
- CMD_PORT_SEL_COUNT = 0x140, /* port selector count register */
- CMD_APP_MEM_CTL = 0x144, /* Application Memory Control */
- CMD_XOR_MEM_CTL = 0x148, /* XOR Block Memory Control */
- CMD_DMA_MEM_CTL = 0x14c, /* DMA Block Memory Control */
- CMD_PORT_MEM_CTL0 = 0x150, /* Port Memory Control 0 */
- CMD_PORT_MEM_CTL1 = 0x154, /* Port Memory Control 1 */
- CMD_SATA_PORT_MEM_CTL0 = 0x158, /* SATA Port Memory Control 0 */
- CMD_SATA_PORT_MEM_CTL1 = 0x15c, /* SATA Port Memory Control 1 */
- CMD_XOR_MEM_BIST_CTL = 0x160, /* XOR Memory BIST Control */
- CMD_XOR_MEM_BIST_STAT = 0x164, /* XOR Memroy BIST Status */
- CMD_DMA_MEM_BIST_CTL = 0x168, /* DMA Memory BIST Control */
- CMD_DMA_MEM_BIST_STAT = 0x16c, /* DMA Memory BIST Status */
- CMD_PORT_MEM_BIST_CTL = 0x170, /* Port Memory BIST Control */
- CMD_PORT_MEM_BIST_STAT0 = 0x174, /* Port Memory BIST Status 0 */
- CMD_PORT_MEM_BIST_STAT1 = 0x178, /* Port Memory BIST Status 1 */
- CMD_STP_MEM_BIST_CTL = 0x17c, /* STP Memory BIST Control */
- CMD_STP_MEM_BIST_STAT0 = 0x180, /* STP Memory BIST Status 0 */
- CMD_STP_MEM_BIST_STAT1 = 0x184, /* STP Memory BIST Status 1 */
- CMD_RESET_COUNT = 0x188, /* Reset Count */
- CMD_MONTR_DATA_SEL = 0x18C, /* Monitor Data/Select */
- CMD_PLL_PHY_CONFIG = 0x190, /* PLL/PHY Configuration */
- CMD_PHY_CTL = 0x194, /* PHY Control and Status */
- CMD_PHY_TEST_COUNT0 = 0x198, /* Phy Test Count 0 */
- CMD_PHY_TEST_COUNT1 = 0x19C, /* Phy Test Count 1 */
- CMD_PHY_TEST_COUNT2 = 0x1A0, /* Phy Test Count 2 */
- CMD_APP_ERR_CONFIG = 0x1A4, /* Application Error Configuration */
- CMD_PND_FIFO_CTL0 = 0x1A8, /* Pending FIFO Control 0 */
- CMD_HOST_CTL = 0x1AC, /* Host Control Status */
- CMD_HOST_WR_DATA = 0x1B0, /* Host Write Data */
- CMD_HOST_RD_DATA = 0x1B4, /* Host Read Data */
- CMD_PHY_MODE_21 = 0x1B8, /* Phy Mode 21 */
- CMD_SL_MODE0 = 0x1BC, /* SL Mode 0 */
- CMD_SL_MODE1 = 0x1C0, /* SL Mode 1 */
- CMD_PND_FIFO_CTL1 = 0x1C4, /* Pending FIFO Control 1 */
-};
-
-/* SAS/SATA configuration port registers, aka phy registers */
-enum sas_sata_config_port_regs {
- PHYR_IDENTIFY = 0x00, /* info for IDENTIFY frame */
- PHYR_ADDR_LO = 0x04, /* my SAS address (low) */
- PHYR_ADDR_HI = 0x08, /* my SAS address (high) */
- PHYR_ATT_DEV_INFO = 0x0C, /* attached device info */
- PHYR_ATT_ADDR_LO = 0x10, /* attached dev SAS addr (low) */
- PHYR_ATT_ADDR_HI = 0x14, /* attached dev SAS addr (high) */
- PHYR_SATA_CTL = 0x18, /* SATA control */
- PHYR_PHY_STAT = 0x1C, /* PHY status */
- PHYR_SATA_SIG0 = 0x20, /*port SATA signature FIS(Byte 0-3) */
- PHYR_SATA_SIG1 = 0x24, /*port SATA signature FIS(Byte 4-7) */
- PHYR_SATA_SIG2 = 0x28, /*port SATA signature FIS(Byte 8-11) */
- PHYR_SATA_SIG3 = 0x2c, /*port SATA signature FIS(Byte 12-15) */
- PHYR_R_ERR_COUNT = 0x30, /* port R_ERR count register */
- PHYR_CRC_ERR_COUNT = 0x34, /* port CRC error count register */
- PHYR_WIDE_PORT = 0x38, /* wide port participating */
- PHYR_CURRENT0 = 0x80, /* current connection info 0 */
- PHYR_CURRENT1 = 0x84, /* current connection info 1 */
- PHYR_CURRENT2 = 0x88, /* current connection info 2 */
-};
-
-/* SAS/SATA Vendor Specific Port Registers */
-enum sas_sata_vsp_regs {
- VSR_PHY_STAT = 0x00, /* Phy Status */
- VSR_PHY_MODE1 = 0x01, /* phy tx */
- VSR_PHY_MODE2 = 0x02, /* tx scc */
- VSR_PHY_MODE3 = 0x03, /* pll */
- VSR_PHY_MODE4 = 0x04, /* VCO */
- VSR_PHY_MODE5 = 0x05, /* Rx */
- VSR_PHY_MODE6 = 0x06, /* CDR */
- VSR_PHY_MODE7 = 0x07, /* Impedance */
- VSR_PHY_MODE8 = 0x08, /* Voltage */
- VSR_PHY_MODE9 = 0x09, /* Test */
- VSR_PHY_MODE10 = 0x0A, /* Power */
- VSR_PHY_MODE11 = 0x0B, /* Phy Mode */
- VSR_PHY_VS0 = 0x0C, /* Vednor Specific 0 */
- VSR_PHY_VS1 = 0x0D, /* Vednor Specific 1 */
-};
-
-enum pci_cfg_registers {
- PCR_PHY_CTL = 0x40,
- PCR_PHY_CTL2 = 0x90,
- PCR_DEV_CTRL = 0xE8,
-};
-
-enum pci_cfg_register_bits {
- PCTL_PWR_ON = (0xFU << 24),
- PCTL_OFF = (0xFU << 12),
- PRD_REQ_SIZE = (0x4000),
- PRD_REQ_MASK = (0x00007000),
-};
-
-enum nvram_layout_offsets {
- NVR_SIG = 0x00, /* 0xAA, 0x55 */
- NVR_SAS_ADDR = 0x02, /* 8-byte SAS address */
-};
-
-enum chip_flavors {
- chip_6320,
- chip_6440,
- chip_6480,
-};
-
-enum port_type {
- PORT_TYPE_SAS = (1L << 1),
- PORT_TYPE_SATA = (1L << 0),
-};
-
-/* Command Table Format */
-enum ct_format {
- /* SSP */
- SSP_F_H = 0x00,
- SSP_F_IU = 0x18,
- SSP_F_MAX = 0x4D,
- /* STP */
- STP_CMD_FIS = 0x00,
- STP_ATAPI_CMD = 0x40,
- STP_F_MAX = 0x10,
- /* SMP */
- SMP_F_T = 0x00,
- SMP_F_DEP = 0x01,
- SMP_F_MAX = 0x101,
-};
-
-enum status_buffer {
- SB_EIR_OFF = 0x00, /* Error Information Record */
- SB_RFB_OFF = 0x08, /* Response Frame Buffer */
- SB_RFB_MAX = 0x400, /* RFB size*/
-};
-
-enum error_info_rec {
- CMD_ISS_STPD = (1U << 31), /* Cmd Issue Stopped */
- CMD_PI_ERR = (1U << 30), /* Protection info error. see flags2 */
- RSP_OVER = (1U << 29), /* rsp buffer overflow */
- RETRY_LIM = (1U << 28), /* FIS/frame retry limit exceeded */
- UNK_FIS = (1U << 27), /* unknown FIS */
- DMA_TERM = (1U << 26), /* DMA terminate primitive rx'd */
- SYNC_ERR = (1U << 25), /* SYNC rx'd during frame xmit */
- TFILE_ERR = (1U << 24), /* SATA taskfile Error bit set */
- R_ERR = (1U << 23), /* SATA returned R_ERR prim */
- RD_OFS = (1U << 20), /* Read DATA frame invalid offset */
- XFER_RDY_OFS = (1U << 19), /* XFER_RDY offset error */
- UNEXP_XFER_RDY = (1U << 18), /* unexpected XFER_RDY error */
- DATA_OVER_UNDER = (1U << 16), /* data overflow/underflow */
- INTERLOCK = (1U << 15), /* interlock error */
- NAK = (1U << 14), /* NAK rx'd */
- ACK_NAK_TO = (1U << 13), /* ACK/NAK timeout */
- CXN_CLOSED = (1U << 12), /* cxn closed w/out ack/nak */
- OPEN_TO = (1U << 11), /* I_T nexus lost, open cxn timeout */
- PATH_BLOCKED = (1U << 10), /* I_T nexus lost, pathway blocked */
- NO_DEST = (1U << 9), /* I_T nexus lost, no destination */
- STP_RES_BSY = (1U << 8), /* STP resources busy */
- BREAK = (1U << 7), /* break received */
- BAD_DEST = (1U << 6), /* bad destination */
- BAD_PROTO = (1U << 5), /* protocol not supported */
- BAD_RATE = (1U << 4), /* cxn rate not supported */
- WRONG_DEST = (1U << 3), /* wrong destination error */
- CREDIT_TO = (1U << 2), /* credit timeout */
- WDOG_TO = (1U << 1), /* watchdog timeout */
- BUF_PAR = (1U << 0), /* buffer parity error */
-};
-
-enum error_info_rec_2 {
- SLOT_BSY_ERR = (1U << 31), /* Slot Busy Error */
- GRD_CHK_ERR = (1U << 14), /* Guard Check Error */
- APP_CHK_ERR = (1U << 13), /* Application Check error */
- REF_CHK_ERR = (1U << 12), /* Reference Check Error */
- USR_BLK_NM = (1U << 0), /* User Block Number */
-};
-
-struct mvs_chip_info {
- u32 n_phy;
- u32 srs_sz;
- u32 slot_width;
-};
-
-struct mvs_err_info {
- __le32 flags;
- __le32 flags2;
-};
-
-struct mvs_prd {
- __le64 addr; /* 64-bit buffer address */
- __le32 reserved;
- __le32 len; /* 16-bit length */
-};
-
-struct mvs_cmd_hdr {
- __le32 flags; /* PRD tbl len; SAS, SATA ctl */
- __le32 lens; /* cmd, max resp frame len */
- __le32 tags; /* targ port xfer tag; tag */
- __le32 data_len; /* data xfer len */
- __le64 cmd_tbl; /* command table address */
- __le64 open_frame; /* open addr frame address */
- __le64 status_buf; /* status buffer address */
- __le64 prd_tbl; /* PRD tbl address */
- __le32 reserved[4];
-};
-
-struct mvs_port {
- struct asd_sas_port sas_port;
- u8 port_attached;
- u8 taskfileset;
- u8 wide_port_phymap;
- struct list_head list;
-};
-
-struct mvs_phy {
- struct mvs_port *port;
- struct asd_sas_phy sas_phy;
- struct sas_identify identify;
- struct scsi_device *sdev;
- u64 dev_sas_addr;
- u64 att_dev_sas_addr;
- u32 att_dev_info;
- u32 dev_info;
- u32 phy_type;
- u32 phy_status;
- u32 irq_status;
- u32 frame_rcvd_size;
- u8 frame_rcvd[32];
- u8 phy_attached;
- enum sas_linkrate minimum_linkrate;
- enum sas_linkrate maximum_linkrate;
-};
-
-struct mvs_slot_info {
- struct list_head list;
- struct sas_task *task;
- u32 n_elem;
- u32 tx;
-
- /* DMA buffer for storing cmd tbl, open addr frame, status buffer,
- * and PRD table
- */
- void *buf;
- dma_addr_t buf_dma;
-#if _MV_DUMP
- u32 cmd_size;
-#endif
-
- void *response;
- struct mvs_port *port;
+struct mvs_task_exec_info {
+ struct sas_task *task;
+ struct mvs_cmd_hdr *hdr;
+ struct mvs_port *port;
+ u32 tag;
+ int n_elem;
};
-struct mvs_info {
- unsigned long flags;
-
- spinlock_t lock; /* host-wide lock */
- struct pci_dev *pdev; /* our device */
- void __iomem *regs; /* enhanced mode registers */
- void __iomem *peri_regs; /* peripheral registers */
-
- u8 sas_addr[SAS_ADDR_SIZE];
- struct sas_ha_struct sas; /* SCSI/SAS glue */
- struct Scsi_Host *shost;
-
- __le32 *tx; /* TX (delivery) DMA ring */
- dma_addr_t tx_dma;
- u32 tx_prod; /* cached next-producer idx */
-
- __le32 *rx; /* RX (completion) DMA ring */
- dma_addr_t rx_dma;
- u32 rx_cons; /* RX consumer idx */
-
- __le32 *rx_fis; /* RX'd FIS area */
- dma_addr_t rx_fis_dma;
-
- struct mvs_cmd_hdr *slot; /* DMA command header slots */
- dma_addr_t slot_dma;
-
- const struct mvs_chip_info *chip;
+static void mvs_release_task(struct mvs_info *mvi, int phy_no);
+static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i);
+static void mvs_update_phyinfo(struct mvs_info *mvi, int i,
+ int get_st);
+static int mvs_int_rx(struct mvs_info *mvi, bool self_clear);
+static void mvs_slot_reset(struct mvs_info *mvi, struct sas_task *task,
+ u32 slot_idx);
- u8 tags[MVS_SLOTS];
- struct mvs_slot_info slot_info[MVS_SLOTS];
- /* further per-slot information */
- struct mvs_phy phy[MVS_MAX_PHYS];
- struct mvs_port port[MVS_MAX_PHYS];
-#ifdef MVS_USE_TASKLET
- struct tasklet_struct tasklet;
-#endif
-};
+static int mvs_find_tag(struct mvs_info *mvi, struct sas_task *task, u32 *tag)
+{
+ if (task->lldd_task) {
+ struct mvs_slot_info *slot;
+ slot = (struct mvs_slot_info *) task->lldd_task;
+ *tag = slot - mvi->slot_info;
+ return 1;
+ }
+ return 0;
+}
-static int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
- void *funcdata);
-static u32 mvs_read_phy_ctl(struct mvs_info *mvi, u32 port);
-static void mvs_write_phy_ctl(struct mvs_info *mvi, u32 port, u32 val);
-static u32 mvs_read_port_irq_stat(struct mvs_info *mvi, u32 port);
-static void mvs_write_port_irq_stat(struct mvs_info *mvi, u32 port, u32 val);
-static void mvs_write_port_irq_mask(struct mvs_info *mvi, u32 port, u32 val);
-static u32 mvs_read_port_irq_mask(struct mvs_info *mvi, u32 port);
+static void mvs_tag_clear(struct mvs_info *mvi, u32 tag)
+{
+ void *bitmap = (void *) &mvi->tags;
+ clear_bit(tag, bitmap);
+}
-static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i);
-static void mvs_detect_porttype(struct mvs_info *mvi, int i);
-static void mvs_update_phyinfo(struct mvs_info *mvi, int i, int get_st);
-static void mvs_release_task(struct mvs_info *mvi, int phy_no);
+static void mvs_tag_free(struct mvs_info *mvi, u32 tag)
+{
+ mvs_tag_clear(mvi, tag);
+}
-static int mvs_scan_finished(struct Scsi_Host *, unsigned long);
-static void mvs_scan_start(struct Scsi_Host *);
-static int mvs_slave_configure(struct scsi_device *sdev);
+static void mvs_tag_set(struct mvs_info *mvi, unsigned int tag)
+{
+ void *bitmap = (void *) &mvi->tags;
+ set_bit(tag, bitmap);
+}
-static struct scsi_transport_template *mvs_stt;
+static int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out)
+{
+ unsigned int index, tag;
+ void *bitmap = (void *) &mvi->tags;
-static const struct mvs_chip_info mvs_chips[] = {
- [chip_6320] = { 2, 16, 9 },
- [chip_6440] = { 4, 16, 9 },
- [chip_6480] = { 8, 32, 10 },
-};
+ index = find_first_zero_bit(bitmap, MVS_SLOTS);
+ tag = index;
+ if (tag >= MVS_SLOTS)
+ return -SAS_QUEUE_FULL;
+ mvs_tag_set(mvi, tag);
+ *tag_out = tag;
+ return 0;
+}
-static struct scsi_host_template mvs_sht = {
- .module = THIS_MODULE,
- .name = DRV_NAME,
- .queuecommand = sas_queuecommand,
- .target_alloc = sas_target_alloc,
- .slave_configure = mvs_slave_configure,
- .slave_destroy = sas_slave_destroy,
- .scan_finished = mvs_scan_finished,
- .scan_start = mvs_scan_start,
- .change_queue_depth = sas_change_queue_depth,
- .change_queue_type = sas_change_queue_type,
- .bios_param = sas_bios_param,
- .can_queue = 1,
- .cmd_per_lun = 1,
- .this_id = -1,
- .sg_tablesize = SG_ALL,
- .max_sectors = SCSI_DEFAULT_MAX_SECTORS,
- .use_clustering = ENABLE_CLUSTERING,
- .eh_device_reset_handler = sas_eh_device_reset_handler,
- .eh_bus_reset_handler = sas_eh_bus_reset_handler,
- .slave_alloc = sas_slave_alloc,
- .target_destroy = sas_target_destroy,
- .ioctl = sas_ioctl,
-};
+void mvs_tag_init(struct mvs_info *mvi)
+{
+ int i;
+ for (i = 0; i < MVS_SLOTS; ++i)
+ mvs_tag_clear(mvi, i);
+}
static void mvs_hexdump(u32 size, u8 *data, u32 baseaddr)
{
#endif
}
-static void mvs_hba_interrupt_enable(struct mvs_info *mvi)
+/* FIXME: locking? */
+int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func, void *funcdata)
{
- void __iomem *regs = mvi->regs;
+ struct mvs_info *mvi = sas_phy->ha->lldd_ha;
+ int rc = 0, phy_id = sas_phy->id;
u32 tmp;
- tmp = mr32(GBL_CTL);
-
- mw32(GBL_CTL, tmp | INT_EN);
-}
+ tmp = mvs_read_phy_ctl(mvi, phy_id);
-static void mvs_hba_interrupt_disable(struct mvs_info *mvi)
-{
- void __iomem *regs = mvi->regs;
- u32 tmp;
+ switch (func) {
+ case PHY_FUNC_SET_LINK_RATE:{
+ struct sas_phy_linkrates *rates = funcdata;
+ u32 lrmin = 0, lrmax = 0;
- tmp = mr32(GBL_CTL);
+ lrmin = (rates->minimum_linkrate << 8);
+ lrmax = (rates->maximum_linkrate << 12);
- mw32(GBL_CTL, tmp & ~INT_EN);
-}
+ if (lrmin) {
+ tmp &= ~(0xf << 8);
+ tmp |= lrmin;
+ }
+ if (lrmax) {
+ tmp &= ~(0xf << 12);
+ tmp |= lrmax;
+ }
+ mvs_write_phy_ctl(mvi, phy_id, tmp);
+ break;
+ }
-static int mvs_int_rx(struct mvs_info *mvi, bool self_clear);
+ case PHY_FUNC_HARD_RESET:
+ if (tmp & PHY_RST_HARD)
+ break;
+ mvs_write_phy_ctl(mvi, phy_id, tmp | PHY_RST_HARD);
+ break;
-/* move to PCI layer or libata core? */
-static int pci_go_64(struct pci_dev *pdev)
-{
- int rc;
+ case PHY_FUNC_LINK_RESET:
+ mvs_write_phy_ctl(mvi, phy_id, tmp | PHY_RST);
+ break;
- if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- if (rc) {
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_printk(KERN_ERR, &pdev->dev,
- "64-bit DMA enable failed\n");
- return rc;
- }
- }
- } else {
- rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_printk(KERN_ERR, &pdev->dev,
- "32-bit DMA enable failed\n");
- return rc;
- }
- rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (rc) {
- dev_printk(KERN_ERR, &pdev->dev,
- "32-bit consistent DMA enable failed\n");
- return rc;
- }
+ case PHY_FUNC_DISABLE:
+ case PHY_FUNC_RELEASE_SPINUP_HOLD:
+ default:
+ rc = -EOPNOTSUPP;
}
return rc;
}
-static int mvs_find_tag(struct mvs_info *mvi, struct sas_task *task, u32 *tag)
+static void mvs_bytes_dmaed(struct mvs_info *mvi, int i)
{
- if (task->lldd_task) {
- struct mvs_slot_info *slot;
- slot = (struct mvs_slot_info *) task->lldd_task;
- *tag = slot - mvi->slot_info;
- return 1;
+ struct mvs_phy *phy = &mvi->phy[i];
+ struct asd_sas_phy *sas_phy = mvi->sas.sas_phy[i];
+
+ if (!phy->phy_attached)
+ return;
+
+ if (sas_phy->phy) {
+ struct sas_phy *sphy = sas_phy->phy;
+
+ sphy->negotiated_linkrate = sas_phy->linkrate;
+ sphy->minimum_linkrate = phy->minimum_linkrate;
+ sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
+ sphy->maximum_linkrate = phy->maximum_linkrate;
+ sphy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
}
- return 0;
-}
-static void mvs_tag_clear(struct mvs_info *mvi, u32 tag)
-{
- void *bitmap = (void *) &mvi->tags;
- clear_bit(tag, bitmap);
-}
+ if (phy->phy_type & PORT_TYPE_SAS) {
+ struct sas_identify_frame *id;
-static void mvs_tag_free(struct mvs_info *mvi, u32 tag)
-{
- mvs_tag_clear(mvi, tag);
+ id = (struct sas_identify_frame *)phy->frame_rcvd;
+ id->dev_type = phy->identify.device_type;
+ id->initiator_bits = SAS_PROTOCOL_ALL;
+ id->target_bits = phy->identify.target_port_protocols;
+ } else if (phy->phy_type & PORT_TYPE_SATA) {
+ /* TODO */
+ }
+ mvi->sas.sas_phy[i]->frame_rcvd_size = phy->frame_rcvd_size;
+ mvi->sas.notify_port_event(mvi->sas.sas_phy[i],
+ PORTE_BYTES_DMAED);
}
-static void mvs_tag_set(struct mvs_info *mvi, unsigned int tag)
+int mvs_slave_configure(struct scsi_device *sdev)
{
- void *bitmap = (void *) &mvi->tags;
- set_bit(tag, bitmap);
-}
+ struct domain_device *dev = sdev_to_domain_dev(sdev);
+ int ret = sas_slave_configure(sdev);
-static int mvs_tag_alloc(struct mvs_info *mvi, u32 *tag_out)
-{
- unsigned int index, tag;
- void *bitmap = (void *) &mvi->tags;
+ if (ret)
+ return ret;
- index = find_first_zero_bit(bitmap, MVS_SLOTS);
- tag = index;
- if (tag >= MVS_SLOTS)
- return -SAS_QUEUE_FULL;
- mvs_tag_set(mvi, tag);
- *tag_out = tag;
+ if (dev_is_sata(dev)) {
+ /* struct ata_port *ap = dev->sata_dev.ap; */
+ /* struct ata_device *adev = ap->link.device; */
+
+ /* clamp at no NCQ for the time being */
+ /* adev->flags |= ATA_DFLAG_NCQ_OFF; */
+ scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, 1);
+ }
return 0;
}
-static void mvs_tag_init(struct mvs_info *mvi)
+void mvs_scan_start(struct Scsi_Host *shost)
{
int i;
- for (i = 0; i < MVS_SLOTS; ++i)
- mvs_tag_clear(mvi, i);
+ struct mvs_info *mvi = SHOST_TO_SAS_HA(shost)->lldd_ha;
+
+ for (i = 0; i < mvi->chip->n_phy; ++i) {
+ mvs_bytes_dmaed(mvi, i);
+ }
}
-#ifndef MVS_DISABLE_NVRAM
-static int mvs_eep_read(void __iomem *regs, u32 addr, u32 *data)
+int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
- int timeout = 1000;
-
- if (addr & ~SPI_ADDR_MASK)
- return -EINVAL;
-
- writel(addr, regs + SPI_CMD);
- writel(TWSI_RD, regs + SPI_CTL);
-
- while (timeout-- > 0) {
- if (readl(regs + SPI_CTL) & TWSI_RDY) {
- *data = readl(regs + SPI_DATA);
- return 0;
- }
-
- udelay(10);
- }
-
- return -EBUSY;
+ /* give the phy enabling interrupt event time to come in (1s
+ * is empirically about all it takes) */
+ if (time < HZ)
+ return 0;
+ /* Wait for discovery to finish */
+ scsi_flush_work(shost);
+ return 1;
}
-static int mvs_eep_read_buf(void __iomem *regs, u32 addr,
- void *buf, u32 buflen)
+static int mvs_task_prep_smp(struct mvs_info *mvi,
+ struct mvs_task_exec_info *tei)
{
- u32 addr_end, tmp_addr, i, j;
- u32 tmp = 0;
- int rc;
- u8 *tmp8, *buf8 = buf;
-
- addr_end = addr + buflen;
- tmp_addr = ALIGN(addr, 4);
- if (addr > 0xff)
- return -EINVAL;
-
- j = addr & 0x3;
- if (j) {
- rc = mvs_eep_read(regs, tmp_addr, &tmp);
- if (rc)
- return rc;
+ int elem, rc, i;
+ struct sas_task *task = tei->task;
+ struct mvs_cmd_hdr *hdr = tei->hdr;
+ struct scatterlist *sg_req, *sg_resp;
+ u32 req_len, resp_len, tag = tei->tag;
+ void *buf_tmp;
+ u8 *buf_oaf;
+ dma_addr_t buf_tmp_dma;
+ struct mvs_prd *buf_prd;
+ struct scatterlist *sg;
+ struct mvs_slot_info *slot = &mvi->slot_info[tag];
+ struct asd_sas_port *sas_port = task->dev->port;
+ u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
+#if _MV_DUMP
+ u8 *buf_cmd;
+ void *from;
+#endif
+ /*
+ * DMA-map SMP request, response buffers
+ */
+ sg_req = &task->smp_task.smp_req;
+ elem = pci_map_sg(mvi->pdev, sg_req, 1, PCI_DMA_TODEVICE);
+ if (!elem)
+ return -ENOMEM;
+ req_len = sg_dma_len(sg_req);
- tmp8 = (u8 *)&tmp;
- for (i = j; i < 4; i++)
- *buf8++ = tmp8[i];
+ sg_resp = &task->smp_task.smp_resp;
+ elem = pci_map_sg(mvi->pdev, sg_resp, 1, PCI_DMA_FROMDEVICE);
+ if (!elem) {
+ rc = -ENOMEM;
+ goto err_out;
+ }
+ resp_len = sg_dma_len(sg_resp);
- tmp_addr += 4;
+ /* must be in dwords */
+ if ((req_len & 0x3) || (resp_len & 0x3)) {
+ rc = -EINVAL;
+ goto err_out_2;
}
- for (j = ALIGN(addr_end, 4); tmp_addr < j; tmp_addr += 4) {
- rc = mvs_eep_read(regs, tmp_addr, &tmp);
- if (rc)
- return rc;
+ /*
+ * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
+ */
- memcpy(buf8, &tmp, 4);
- buf8 += 4;
- }
+ /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */
+ buf_tmp = slot->buf;
+ buf_tmp_dma = slot->buf_dma;
- if (tmp_addr < addr_end) {
- rc = mvs_eep_read(regs, tmp_addr, &tmp);
- if (rc)
- return rc;
+#if _MV_DUMP
+ buf_cmd = buf_tmp;
+ hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
+ buf_tmp += req_len;
+ buf_tmp_dma += req_len;
+ slot->cmd_size = req_len;
+#else
+ hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req));
+#endif
- tmp8 = (u8 *)&tmp;
- j = addr_end - tmp_addr;
- for (i = 0; i < j; i++)
- *buf8++ = tmp8[i];
+ /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
+ buf_oaf = buf_tmp;
+ hdr->open_frame = cpu_to_le64(buf_tmp_dma);
- tmp_addr += 4;
- }
+ buf_tmp += MVS_OAF_SZ;
+ buf_tmp_dma += MVS_OAF_SZ;
- return 0;
-}
-#endif
+ /* region 3: PRD table ********************************************* */
+ buf_prd = buf_tmp;
+ if (tei->n_elem)
+ hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
+ else
+ hdr->prd_tbl = 0;
-static int mvs_nvram_read(struct mvs_info *mvi, u32 addr,
- void *buf, u32 buflen)
-{
-#ifndef MVS_DISABLE_NVRAM
- void __iomem *regs = mvi->regs;
- int rc, i;
- u32 sum;
- u8 hdr[2], *tmp;
- const char *msg;
+ i = sizeof(struct mvs_prd) * tei->n_elem;
+ buf_tmp += i;
+ buf_tmp_dma += i;
- rc = mvs_eep_read_buf(regs, addr, &hdr, 2);
- if (rc) {
- msg = "nvram hdr read failed";
- goto err_out;
- }
- rc = mvs_eep_read_buf(regs, addr + 2, buf, buflen);
- if (rc) {
- msg = "nvram read failed";
- goto err_out;
- }
+ /* region 4: status buffer (larger the PRD, smaller this buf) ****** */
+ slot->response = buf_tmp;
+ hdr->status_buf = cpu_to_le64(buf_tmp_dma);
- if (hdr[0] != 0x5A) {
- /* entry id */
- msg = "invalid nvram entry id";
- rc = -ENOENT;
- goto err_out;
- }
+ /*
+ * Fill in TX ring and command slot header
+ */
+ slot->tx = mvi->tx_prod;
+ mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) |
+ TXQ_MODE_I | tag |
+ (sas_port->phy_mask << TXQ_PHY_SHIFT));
- tmp = buf;
- sum = ((u32)hdr[0]) + ((u32)hdr[1]);
- for (i = 0; i < buflen; i++)
- sum += ((u32)tmp[i]);
+ hdr->flags |= flags;
+ hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4));
+ hdr->tags = cpu_to_le32(tag);
+ hdr->data_len = 0;
- if (sum) {
- msg = "nvram checksum failure";
- rc = -EILSEQ;
- goto err_out;
+ /* generate open address frame hdr (first 12 bytes) */
+ buf_oaf[0] = (1 << 7) | (0 << 4) | 0x01; /* initiator, SMP, ftype 1h */
+ buf_oaf[1] = task->dev->linkrate & 0xf;
+ *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */
+ memcpy(buf_oaf + 4, task->dev->sas_addr, SAS_ADDR_SIZE);
+
+ /* fill in PRD (scatter/gather) table, if any */
+ for_each_sg(task->scatter, sg, tei->n_elem, i) {
+ buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
+ buf_prd->len = cpu_to_le32(sg_dma_len(sg));
+ buf_prd++;
}
+#if _MV_DUMP
+ /* copy cmd table */
+ from = kmap_atomic(sg_page(sg_req), KM_IRQ0);
+ memcpy(buf_cmd, from + sg_req->offset, req_len);
+ kunmap_atomic(from, KM_IRQ0);
+#endif
return 0;
+err_out_2:
+ pci_unmap_sg(mvi->pdev, &tei->task->smp_task.smp_resp, 1,
+ PCI_DMA_FROMDEVICE);
err_out:
- dev_printk(KERN_ERR, &mvi->pdev->dev, "%s", msg);
+ pci_unmap_sg(mvi->pdev, &tei->task->smp_task.smp_req, 1,
+ PCI_DMA_TODEVICE);
return rc;
-#else
- /* FIXME , For SAS target mode */
- memcpy(buf, "\x50\x05\x04\x30\x11\xab\x00\x00", 8);
- return 0;
-#endif
}
-static void mvs_bytes_dmaed(struct mvs_info *mvi, int i)
+static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag)
{
- struct mvs_phy *phy = &mvi->phy[i];
- struct asd_sas_phy *sas_phy = mvi->sas.sas_phy[i];
-
- if (!phy->phy_attached)
- return;
-
- if (sas_phy->phy) {
- struct sas_phy *sphy = sas_phy->phy;
-
- sphy->negotiated_linkrate = sas_phy->linkrate;
- sphy->minimum_linkrate = phy->minimum_linkrate;
- sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
- sphy->maximum_linkrate = phy->maximum_linkrate;
- sphy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
- }
-
- if (phy->phy_type & PORT_TYPE_SAS) {
- struct sas_identify_frame *id;
+ struct ata_queued_cmd *qc = task->uldd_task;
- id = (struct sas_identify_frame *)phy->frame_rcvd;
- id->dev_type = phy->identify.device_type;
- id->initiator_bits = SAS_PROTOCOL_ALL;
- id->target_bits = phy->identify.target_port_protocols;
- } else if (phy->phy_type & PORT_TYPE_SATA) {
- /* TODO */
+ if (qc) {
+ if (qc->tf.command == ATA_CMD_FPDMA_WRITE ||
+ qc->tf.command == ATA_CMD_FPDMA_READ) {
+ *tag = qc->tag;
+ return 1;
+ }
}
- mvi->sas.sas_phy[i]->frame_rcvd_size = phy->frame_rcvd_size;
- mvi->sas.notify_port_event(mvi->sas.sas_phy[i],
- PORTE_BYTES_DMAED);
-}
-static int mvs_scan_finished(struct Scsi_Host *shost, unsigned long time)
-{
- /* give the phy enabling interrupt event time to come in (1s
- * is empirically about all it takes) */
- if (time < HZ)
- return 0;
- /* Wait for discovery to finish */
- scsi_flush_work(shost);
- return 1;
+ return 0;
}
-static void mvs_scan_start(struct Scsi_Host *shost)
-{
- int i;
- struct mvs_info *mvi = SHOST_TO_SAS_HA(shost)->lldd_ha;
-
- for (i = 0; i < mvi->chip->n_phy; ++i) {
- mvs_bytes_dmaed(mvi, i);
- }
-}
-
-static int mvs_slave_configure(struct scsi_device *sdev)
-{
- struct domain_device *dev = sdev_to_domain_dev(sdev);
- int ret = sas_slave_configure(sdev);
-
- if (ret)
- return ret;
-
- if (dev_is_sata(dev)) {
- /* struct ata_port *ap = dev->sata_dev.ap; */
- /* struct ata_device *adev = ap->link.device; */
-
- /* clamp at no NCQ for the time being */
- /* adev->flags |= ATA_DFLAG_NCQ_OFF; */
- scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, 1);
- }
- return 0;
-}
-
-static void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events)
-{
- struct pci_dev *pdev = mvi->pdev;
- struct sas_ha_struct *sas_ha = &mvi->sas;
- struct mvs_phy *phy = &mvi->phy[phy_no];
- struct asd_sas_phy *sas_phy = &phy->sas_phy;
-
- phy->irq_status = mvs_read_port_irq_stat(mvi, phy_no);
- /*
- * events is port event now ,
- * we need check the interrupt status which belongs to per port.
- */
- dev_printk(KERN_DEBUG, &pdev->dev,
- "Port %d Event = %X\n",
- phy_no, phy->irq_status);
-
- if (phy->irq_status & (PHYEV_POOF | PHYEV_DEC_ERR)) {
- mvs_release_task(mvi, phy_no);
- if (!mvs_is_phy_ready(mvi, phy_no)) {
- sas_phy_disconnected(sas_phy);
- sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL);
- dev_printk(KERN_INFO, &pdev->dev,
- "Port %d Unplug Notice\n", phy_no);
-
- } else
- mvs_phy_control(sas_phy, PHY_FUNC_LINK_RESET, NULL);
- }
- if (!(phy->irq_status & PHYEV_DEC_ERR)) {
- if (phy->irq_status & PHYEV_COMWAKE) {
- u32 tmp = mvs_read_port_irq_mask(mvi, phy_no);
- mvs_write_port_irq_mask(mvi, phy_no,
- tmp | PHYEV_SIG_FIS);
- }
- if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) {
- phy->phy_status = mvs_is_phy_ready(mvi, phy_no);
- if (phy->phy_status) {
- mvs_detect_porttype(mvi, phy_no);
-
- if (phy->phy_type & PORT_TYPE_SATA) {
- u32 tmp = mvs_read_port_irq_mask(mvi,
- phy_no);
- tmp &= ~PHYEV_SIG_FIS;
- mvs_write_port_irq_mask(mvi,
- phy_no, tmp);
- }
-
- mvs_update_phyinfo(mvi, phy_no, 0);
- sas_ha->notify_phy_event(sas_phy,
- PHYE_OOB_DONE);
- mvs_bytes_dmaed(mvi, phy_no);
- } else {
- dev_printk(KERN_DEBUG, &pdev->dev,
- "plugin interrupt but phy is gone\n");
- mvs_phy_control(sas_phy, PHY_FUNC_LINK_RESET,
- NULL);
- }
- } else if (phy->irq_status & PHYEV_BROAD_CH) {
- mvs_release_task(mvi, phy_no);
- sas_ha->notify_port_event(sas_phy,
- PORTE_BROADCAST_RCVD);
- }
- }
- mvs_write_port_irq_stat(mvi, phy_no, phy->irq_status);
-}
-
-static void mvs_int_sata(struct mvs_info *mvi)
-{
- u32 tmp;
- void __iomem *regs = mvi->regs;
- tmp = mr32(INT_STAT_SRS);
- mw32(INT_STAT_SRS, tmp & 0xFFFF);
-}
-
-static void mvs_slot_reset(struct mvs_info *mvi, struct sas_task *task,
- u32 slot_idx)
-{
- void __iomem *regs = mvi->regs;
- struct domain_device *dev = task->dev;
- struct asd_sas_port *sas_port = dev->port;
- struct mvs_port *port = mvi->slot_info[slot_idx].port;
- u32 reg_set, phy_mask;
-
- if (!sas_protocol_ata(task->task_proto)) {
- reg_set = 0;
- phy_mask = (port->wide_port_phymap) ? port->wide_port_phymap :
- sas_port->phy_mask;
- } else {
- reg_set = port->taskfileset;
- phy_mask = sas_port->phy_mask;
- }
- mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | slot_idx |
- (TXQ_CMD_SLOT_RESET << TXQ_CMD_SHIFT) |
- (phy_mask << TXQ_PHY_SHIFT) |
- (reg_set << TXQ_SRS_SHIFT));
-
- mw32(TX_PROD_IDX, mvi->tx_prod);
- mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);
-}
-
-static int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task,
- u32 slot_idx, int err)
-{
- struct mvs_port *port = mvi->slot_info[slot_idx].port;
- struct task_status_struct *tstat = &task->task_status;
- struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf;
- int stat = SAM_GOOD;
-
- resp->frame_len = sizeof(struct dev_to_host_fis);
- memcpy(&resp->ending_fis[0],
- SATA_RECEIVED_D2H_FIS(port->taskfileset),
- sizeof(struct dev_to_host_fis));
- tstat->buf_valid_size = sizeof(*resp);
- if (unlikely(err))
- stat = SAS_PROTO_RESPONSE;
- return stat;
-}
-
-static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc)
-{
- u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
- mvs_tag_clear(mvi, slot_idx);
-}
-
-static void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task,
- struct mvs_slot_info *slot, u32 slot_idx)
-{
- if (!sas_protocol_ata(task->task_proto))
- if (slot->n_elem)
- pci_unmap_sg(mvi->pdev, task->scatter,
- slot->n_elem, task->data_dir);
-
- switch (task->task_proto) {
- case SAS_PROTOCOL_SMP:
- pci_unmap_sg(mvi->pdev, &task->smp_task.smp_resp, 1,
- PCI_DMA_FROMDEVICE);
- pci_unmap_sg(mvi->pdev, &task->smp_task.smp_req, 1,
- PCI_DMA_TODEVICE);
- break;
-
- case SAS_PROTOCOL_SATA:
- case SAS_PROTOCOL_STP:
- case SAS_PROTOCOL_SSP:
- default:
- /* do nothing */
- break;
- }
- list_del(&slot->list);
- task->lldd_task = NULL;
- slot->task = NULL;
- slot->port = NULL;
-}
-
-static int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task,
- u32 slot_idx)
-{
- struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
- u32 err_dw0 = le32_to_cpu(*(u32 *) (slot->response));
- u32 err_dw1 = le32_to_cpu(*(u32 *) (slot->response + 4));
- int stat = SAM_CHECK_COND;
-
- if (err_dw1 & SLOT_BSY_ERR) {
- stat = SAS_QUEUE_FULL;
- mvs_slot_reset(mvi, task, slot_idx);
- }
- switch (task->task_proto) {
- case SAS_PROTOCOL_SSP:
- break;
- case SAS_PROTOCOL_SMP:
- break;
- case SAS_PROTOCOL_SATA:
- case SAS_PROTOCOL_STP:
- case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
- if (err_dw0 & TFILE_ERR)
- stat = mvs_sata_done(mvi, task, slot_idx, 1);
- break;
- default:
- break;
- }
-
- mvs_hexdump(16, (u8 *) slot->response, 0);
- return stat;
-}
-
-static int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
-{
- u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
- struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
- struct sas_task *task = slot->task;
- struct task_status_struct *tstat;
- struct mvs_port *port;
- bool aborted;
- void *to;
-
- if (unlikely(!task || !task->lldd_task))
- return -1;
-
- mvs_hba_cq_dump(mvi);
-
- spin_lock(&task->task_state_lock);
- aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED;
- if (!aborted) {
- task->task_state_flags &=
- ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
- task->task_state_flags |= SAS_TASK_STATE_DONE;
- }
- spin_unlock(&task->task_state_lock);
-
- if (aborted) {
- mvs_slot_task_free(mvi, task, slot, slot_idx);
- mvs_slot_free(mvi, rx_desc);
- return -1;
- }
-
- port = slot->port;
- tstat = &task->task_status;
- memset(tstat, 0, sizeof(*tstat));
- tstat->resp = SAS_TASK_COMPLETE;
-
- if (unlikely(!port->port_attached || flags)) {
- mvs_slot_err(mvi, task, slot_idx);
- if (!sas_protocol_ata(task->task_proto))
- tstat->stat = SAS_PHY_DOWN;
- goto out;
- }
-
- /* error info record present */
- if (unlikely((rx_desc & RXQ_ERR) && (*(u64 *) slot->response))) {
- tstat->stat = mvs_slot_err(mvi, task, slot_idx);
- goto out;
- }
-
- switch (task->task_proto) {
- case SAS_PROTOCOL_SSP:
- /* hw says status == 0, datapres == 0 */
- if (rx_desc & RXQ_GOOD) {
- tstat->stat = SAM_GOOD;
- tstat->resp = SAS_TASK_COMPLETE;
- }
- /* response frame present */
- else if (rx_desc & RXQ_RSP) {
- struct ssp_response_iu *iu =
- slot->response + sizeof(struct mvs_err_info);
- sas_ssp_task_response(&mvi->pdev->dev, task, iu);
- }
-
- /* should never happen? */
- else
- tstat->stat = SAM_CHECK_COND;
- break;
-
- case SAS_PROTOCOL_SMP: {
- struct scatterlist *sg_resp = &task->smp_task.smp_resp;
- tstat->stat = SAM_GOOD;
- to = kmap_atomic(sg_page(sg_resp), KM_IRQ0);
- memcpy(to + sg_resp->offset,
- slot->response + sizeof(struct mvs_err_info),
- sg_dma_len(sg_resp));
- kunmap_atomic(to, KM_IRQ0);
- break;
- }
-
- case SAS_PROTOCOL_SATA:
- case SAS_PROTOCOL_STP:
- case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: {
- tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0);
- break;
- }
-
- default:
- tstat->stat = SAM_CHECK_COND;
- break;
- }
-
-out:
- mvs_slot_task_free(mvi, task, slot, slot_idx);
- if (unlikely(tstat->stat != SAS_QUEUE_FULL))
- mvs_slot_free(mvi, rx_desc);
-
- spin_unlock(&mvi->lock);
- task->task_done(task);
- spin_lock(&mvi->lock);
- return tstat->stat;
-}
-
-static void mvs_release_task(struct mvs_info *mvi, int phy_no)
-{
- struct list_head *pos, *n;
- struct mvs_slot_info *slot;
- struct mvs_phy *phy = &mvi->phy[phy_no];
- struct mvs_port *port = phy->port;
- u32 rx_desc;
-
- if (!port)
- return;
-
- list_for_each_safe(pos, n, &port->list) {
- slot = container_of(pos, struct mvs_slot_info, list);
- rx_desc = (u32) (slot - mvi->slot_info);
- mvs_slot_complete(mvi, rx_desc, 1);
- }
-}
-
-static void mvs_int_full(struct mvs_info *mvi)
-{
- void __iomem *regs = mvi->regs;
- u32 tmp, stat;
- int i;
-
- stat = mr32(INT_STAT);
-
- mvs_int_rx(mvi, false);
-
- for (i = 0; i < MVS_MAX_PORTS; i++) {
- tmp = (stat >> i) & (CINT_PORT | CINT_PORT_STOPPED);
- if (tmp)
- mvs_int_port(mvi, i, tmp);
- }
-
- if (stat & CINT_SRS)
- mvs_int_sata(mvi);
-
- mw32(INT_STAT, stat);
-}
-
-static int mvs_int_rx(struct mvs_info *mvi, bool self_clear)
-{
- void __iomem *regs = mvi->regs;
- u32 rx_prod_idx, rx_desc;
- bool attn = false;
- struct pci_dev *pdev = mvi->pdev;
-
- /* the first dword in the RX ring is special: it contains
- * a mirror of the hardware's RX producer index, so that
- * we don't have to stall the CPU reading that register.
- * The actual RX ring is offset by one dword, due to this.
- */
- rx_prod_idx = mvi->rx_cons;
- mvi->rx_cons = le32_to_cpu(mvi->rx[0]);
- if (mvi->rx_cons == 0xfff) /* h/w hasn't touched RX ring yet */
- return 0;
-
- /* The CMPL_Q may come late, read from register and try again
- * note: if coalescing is enabled,
- * it will need to read from register every time for sure
- */
- if (mvi->rx_cons == rx_prod_idx)
- mvi->rx_cons = mr32(RX_CONS_IDX) & RX_RING_SZ_MASK;
-
- if (mvi->rx_cons == rx_prod_idx)
- return 0;
-
- while (mvi->rx_cons != rx_prod_idx) {
-
- /* increment our internal RX consumer pointer */
- rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1);
-
- rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]);
-
- if (likely(rx_desc & RXQ_DONE))
- mvs_slot_complete(mvi, rx_desc, 0);
- if (rx_desc & RXQ_ATTN) {
- attn = true;
- dev_printk(KERN_DEBUG, &pdev->dev, "ATTN %X\n",
- rx_desc);
- } else if (rx_desc & RXQ_ERR) {
- if (!(rx_desc & RXQ_DONE))
- mvs_slot_complete(mvi, rx_desc, 0);
- dev_printk(KERN_DEBUG, &pdev->dev, "RXQ_ERR %X\n",
- rx_desc);
- } else if (rx_desc & RXQ_SLOT_RESET) {
- dev_printk(KERN_DEBUG, &pdev->dev, "Slot reset[%X]\n",
- rx_desc);
- mvs_slot_free(mvi, rx_desc);
- }
- }
-
- if (attn && self_clear)
- mvs_int_full(mvi);
-
- return 0;
-}
-
-#ifdef MVS_USE_TASKLET
-static void mvs_tasklet(unsigned long data)
-{
- struct mvs_info *mvi = (struct mvs_info *) data;
- unsigned long flags;
-
- spin_lock_irqsave(&mvi->lock, flags);
-
-#ifdef MVS_DISABLE_MSI
- mvs_int_full(mvi);
-#else
- mvs_int_rx(mvi, true);
-#endif
- spin_unlock_irqrestore(&mvi->lock, flags);
-}
-#endif
-
-static irqreturn_t mvs_interrupt(int irq, void *opaque)
-{
- struct mvs_info *mvi = opaque;
- void __iomem *regs = mvi->regs;
- u32 stat;
-
- stat = mr32(GBL_INT_STAT);
-
- if (stat == 0 || stat == 0xffffffff)
- return IRQ_NONE;
-
- /* clear CMD_CMPLT ASAP */
- mw32_f(INT_STAT, CINT_DONE);
-
-#ifndef MVS_USE_TASKLET
- spin_lock(&mvi->lock);
-
- mvs_int_full(mvi);
-
- spin_unlock(&mvi->lock);
-#else
- tasklet_schedule(&mvi->tasklet);
-#endif
- return IRQ_HANDLED;
-}
-
-#ifndef MVS_DISABLE_MSI
-static irqreturn_t mvs_msi_interrupt(int irq, void *opaque)
-{
- struct mvs_info *mvi = opaque;
-
-#ifndef MVS_USE_TASKLET
- spin_lock(&mvi->lock);
-
- mvs_int_rx(mvi, true);
-
- spin_unlock(&mvi->lock);
-#else
- tasklet_schedule(&mvi->tasklet);
-#endif
- return IRQ_HANDLED;
-}
-#endif
-
-struct mvs_task_exec_info {
- struct sas_task *task;
- struct mvs_cmd_hdr *hdr;
- struct mvs_port *port;
- u32 tag;
- int n_elem;
-};
-
-static int mvs_task_prep_smp(struct mvs_info *mvi,
- struct mvs_task_exec_info *tei)
-{
- int elem, rc, i;
- struct sas_task *task = tei->task;
- struct mvs_cmd_hdr *hdr = tei->hdr;
- struct scatterlist *sg_req, *sg_resp;
- u32 req_len, resp_len, tag = tei->tag;
- void *buf_tmp;
- u8 *buf_oaf;
- dma_addr_t buf_tmp_dma;
- struct mvs_prd *buf_prd;
- struct scatterlist *sg;
- struct mvs_slot_info *slot = &mvi->slot_info[tag];
- struct asd_sas_port *sas_port = task->dev->port;
- u32 flags = (tei->n_elem << MCH_PRD_LEN_SHIFT);
-#if _MV_DUMP
- u8 *buf_cmd;
- void *from;
-#endif
- /*
- * DMA-map SMP request, response buffers
- */
- sg_req = &task->smp_task.smp_req;
- elem = pci_map_sg(mvi->pdev, sg_req, 1, PCI_DMA_TODEVICE);
- if (!elem)
- return -ENOMEM;
- req_len = sg_dma_len(sg_req);
-
- sg_resp = &task->smp_task.smp_resp;
- elem = pci_map_sg(mvi->pdev, sg_resp, 1, PCI_DMA_FROMDEVICE);
- if (!elem) {
- rc = -ENOMEM;
- goto err_out;
- }
- resp_len = sg_dma_len(sg_resp);
-
- /* must be in dwords */
- if ((req_len & 0x3) || (resp_len & 0x3)) {
- rc = -EINVAL;
- goto err_out_2;
- }
-
- /*
- * arrange MVS_SLOT_BUF_SZ-sized DMA buffer according to our needs
- */
-
- /* region 1: command table area (MVS_SSP_CMD_SZ bytes) ************** */
- buf_tmp = slot->buf;
- buf_tmp_dma = slot->buf_dma;
-
-#if _MV_DUMP
- buf_cmd = buf_tmp;
- hdr->cmd_tbl = cpu_to_le64(buf_tmp_dma);
- buf_tmp += req_len;
- buf_tmp_dma += req_len;
- slot->cmd_size = req_len;
-#else
- hdr->cmd_tbl = cpu_to_le64(sg_dma_address(sg_req));
-#endif
-
- /* region 2: open address frame area (MVS_OAF_SZ bytes) ********* */
- buf_oaf = buf_tmp;
- hdr->open_frame = cpu_to_le64(buf_tmp_dma);
-
- buf_tmp += MVS_OAF_SZ;
- buf_tmp_dma += MVS_OAF_SZ;
-
- /* region 3: PRD table ********************************************* */
- buf_prd = buf_tmp;
- if (tei->n_elem)
- hdr->prd_tbl = cpu_to_le64(buf_tmp_dma);
- else
- hdr->prd_tbl = 0;
-
- i = sizeof(struct mvs_prd) * tei->n_elem;
- buf_tmp += i;
- buf_tmp_dma += i;
-
- /* region 4: status buffer (larger the PRD, smaller this buf) ****** */
- slot->response = buf_tmp;
- hdr->status_buf = cpu_to_le64(buf_tmp_dma);
-
- /*
- * Fill in TX ring and command slot header
- */
- slot->tx = mvi->tx_prod;
- mvi->tx[mvi->tx_prod] = cpu_to_le32((TXQ_CMD_SMP << TXQ_CMD_SHIFT) |
- TXQ_MODE_I | tag |
- (sas_port->phy_mask << TXQ_PHY_SHIFT));
-
- hdr->flags |= flags;
- hdr->lens = cpu_to_le32(((resp_len / 4) << 16) | ((req_len - 4) / 4));
- hdr->tags = cpu_to_le32(tag);
- hdr->data_len = 0;
-
- /* generate open address frame hdr (first 12 bytes) */
- buf_oaf[0] = (1 << 7) | (0 << 4) | 0x01; /* initiator, SMP, ftype 1h */
- buf_oaf[1] = task->dev->linkrate & 0xf;
- *(u16 *)(buf_oaf + 2) = 0xFFFF; /* SAS SPEC */
- memcpy(buf_oaf + 4, task->dev->sas_addr, SAS_ADDR_SIZE);
-
- /* fill in PRD (scatter/gather) table, if any */
- for_each_sg(task->scatter, sg, tei->n_elem, i) {
- buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
- buf_prd->len = cpu_to_le32(sg_dma_len(sg));
- buf_prd++;
- }
-
-#if _MV_DUMP
- /* copy cmd table */
- from = kmap_atomic(sg_page(sg_req), KM_IRQ0);
- memcpy(buf_cmd, from + sg_req->offset, req_len);
- kunmap_atomic(from, KM_IRQ0);
-#endif
- return 0;
-
-err_out_2:
- pci_unmap_sg(mvi->pdev, &tei->task->smp_task.smp_resp, 1,
- PCI_DMA_FROMDEVICE);
-err_out:
- pci_unmap_sg(mvi->pdev, &tei->task->smp_task.smp_req, 1,
- PCI_DMA_TODEVICE);
- return rc;
-}
-
-static void mvs_free_reg_set(struct mvs_info *mvi, struct mvs_port *port)
-{
- void __iomem *regs = mvi->regs;
- u32 tmp, offs;
- u8 *tfs = &port->taskfileset;
-
- if (*tfs == MVS_ID_NOT_MAPPED)
- return;
-
- offs = 1U << ((*tfs & 0x0f) + PCS_EN_SATA_REG_SHIFT);
- if (*tfs < 16) {
- tmp = mr32(PCS);
- mw32(PCS, tmp & ~offs);
- } else {
- tmp = mr32(CTL);
- mw32(CTL, tmp & ~offs);
- }
-
- tmp = mr32(INT_STAT_SRS) & (1U << *tfs);
- if (tmp)
- mw32(INT_STAT_SRS, tmp);
-
- *tfs = MVS_ID_NOT_MAPPED;
-}
-
-static u8 mvs_assign_reg_set(struct mvs_info *mvi, struct mvs_port *port)
-{
- int i;
- u32 tmp, offs;
- void __iomem *regs = mvi->regs;
-
- if (port->taskfileset != MVS_ID_NOT_MAPPED)
- return 0;
-
- tmp = mr32(PCS);
-
- for (i = 0; i < mvi->chip->srs_sz; i++) {
- if (i == 16)
- tmp = mr32(CTL);
- offs = 1U << ((i & 0x0f) + PCS_EN_SATA_REG_SHIFT);
- if (!(tmp & offs)) {
- port->taskfileset = i;
-
- if (i < 16)
- mw32(PCS, tmp | offs);
- else
- mw32(CTL, tmp | offs);
- tmp = mr32(INT_STAT_SRS) & (1U << i);
- if (tmp)
- mw32(INT_STAT_SRS, tmp);
- return 0;
- }
- }
- return MVS_ID_NOT_MAPPED;
-}
-
-static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag)
-{
- struct ata_queued_cmd *qc = task->uldd_task;
-
- if (qc) {
- if (qc->tf.command == ATA_CMD_FPDMA_WRITE ||
- qc->tf.command == ATA_CMD_FPDMA_READ) {
- *tag = qc->tag;
- return 1;
- }
- }
-
- return 0;
-}
-
-static int mvs_task_prep_ata(struct mvs_info *mvi,
- struct mvs_task_exec_info *tei)
+static int mvs_task_prep_ata(struct mvs_info *mvi,
+ struct mvs_task_exec_info *tei)
{
struct sas_task *task = tei->task;
struct domain_device *dev = task->dev;
return 0;
}
-static int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags)
+int mvs_task_exec(struct sas_task *task, const int num, gfp_t gfp_flags)
{
struct domain_device *dev = task->dev;
struct mvs_info *mvi = dev->port->ha->lldd_ha;
dev = t->dev;
tei.port = &mvi->port[dev->port->id];
- if (!tei.port->port_attached) {
- if (sas_protocol_ata(t->task_proto)) {
- rc = SAS_PHY_DOWN;
- goto out_done;
- } else {
- struct task_status_struct *ts = &t->task_status;
- ts->resp = SAS_TASK_UNDELIVERED;
- ts->stat = SAS_PHY_DOWN;
- t->task_done(t);
- if (n > 1)
- t = list_entry(t->list.next,
- struct sas_task, list);
- continue;
- }
- }
+ if (!tei.port->port_attached) {
+ if (sas_protocol_ata(t->task_proto)) {
+ rc = SAS_PHY_DOWN;
+ goto out_done;
+ } else {
+ struct task_status_struct *ts = &t->task_status;
+ ts->resp = SAS_TASK_UNDELIVERED;
+ ts->stat = SAS_PHY_DOWN;
+ t->task_done(t);
+ if (n > 1)
+ t = list_entry(t->list.next,
+ struct sas_task, list);
+ continue;
+ }
+ }
+
+ if (!sas_protocol_ata(t->task_proto)) {
+ if (t->num_scatter) {
+ n_elem = pci_map_sg(mvi->pdev, t->scatter,
+ t->num_scatter,
+ t->data_dir);
+ if (!n_elem) {
+ rc = -ENOMEM;
+ goto err_out;
+ }
+ }
+ } else {
+ n_elem = t->num_scatter;
+ }
+
+ rc = mvs_tag_alloc(mvi, &tag);
+ if (rc)
+ goto err_out;
+
+ slot = &mvi->slot_info[tag];
+ t->lldd_task = NULL;
+ slot->n_elem = n_elem;
+ memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
+ tei.task = t;
+ tei.hdr = &mvi->slot[tag];
+ tei.tag = tag;
+ tei.n_elem = n_elem;
+
+ switch (t->task_proto) {
+ case SAS_PROTOCOL_SMP:
+ rc = mvs_task_prep_smp(mvi, &tei);
+ break;
+ case SAS_PROTOCOL_SSP:
+ rc = mvs_task_prep_ssp(mvi, &tei);
+ break;
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ rc = mvs_task_prep_ata(mvi, &tei);
+ break;
+ default:
+ dev_printk(KERN_ERR, &pdev->dev,
+ "unknown sas_task proto: 0x%x\n",
+ t->task_proto);
+ rc = -EINVAL;
+ break;
+ }
+
+ if (rc)
+ goto err_out_tag;
+
+ slot->task = t;
+ slot->port = tei.port;
+ t->lldd_task = (void *) slot;
+ list_add_tail(&slot->list, &slot->port->list);
+ /* TODO: select normal or high priority */
+
+ spin_lock(&t->task_state_lock);
+ t->task_state_flags |= SAS_TASK_AT_INITIATOR;
+ spin_unlock(&t->task_state_lock);
+
+ mvs_hba_memory_dump(mvi, tag, t->task_proto);
+
+ ++pass;
+ mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);
+ if (n > 1)
+ t = list_entry(t->list.next, struct sas_task, list);
+ } while (--n);
+
+ rc = 0;
+ goto out_done;
+
+err_out_tag:
+ mvs_tag_free(mvi, tag);
+err_out:
+ dev_printk(KERN_ERR, &pdev->dev, "mvsas exec failed[%d]!\n", rc);
+ if (!sas_protocol_ata(t->task_proto))
+ if (n_elem)
+ pci_unmap_sg(mvi->pdev, t->scatter, n_elem,
+ t->data_dir);
+out_done:
+ if (pass)
+ mw32(TX_PROD_IDX, (mvi->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1));
+ spin_unlock_irqrestore(&mvi->lock, flags);
+ return rc;
+}
+
+static void mvs_slot_free(struct mvs_info *mvi, u32 rx_desc)
+{
+ u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
+ mvs_tag_clear(mvi, slot_idx);
+}
+
+static void mvs_slot_task_free(struct mvs_info *mvi, struct sas_task *task,
+ struct mvs_slot_info *slot, u32 slot_idx)
+{
+ if (!sas_protocol_ata(task->task_proto))
+ if (slot->n_elem)
+ pci_unmap_sg(mvi->pdev, task->scatter,
+ slot->n_elem, task->data_dir);
+
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SMP:
+ pci_unmap_sg(mvi->pdev, &task->smp_task.smp_resp, 1,
+ PCI_DMA_FROMDEVICE);
+ pci_unmap_sg(mvi->pdev, &task->smp_task.smp_req, 1,
+ PCI_DMA_TODEVICE);
+ break;
+
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SSP:
+ default:
+ /* do nothing */
+ break;
+ }
+ list_del(&slot->list);
+ task->lldd_task = NULL;
+ slot->task = NULL;
+ slot->port = NULL;
+}
+
+static void mvs_update_wideport(struct mvs_info *mvi, int i)
+{
+ struct mvs_phy *phy = &mvi->phy[i];
+ struct mvs_port *port = phy->port;
+ int j, no;
+
+ for_each_phy(port->wide_port_phymap, no, j, mvi->chip->n_phy)
+ if (no & 1) {
+ mvs_write_port_cfg_addr(mvi, no, PHYR_WIDE_PORT);
+ mvs_write_port_cfg_data(mvi, no,
+ port->wide_port_phymap);
+ } else {
+ mvs_write_port_cfg_addr(mvi, no, PHYR_WIDE_PORT);
+ mvs_write_port_cfg_data(mvi, no, 0);
+ }
+}
+
+static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i)
+{
+ u32 tmp;
+ struct mvs_phy *phy = &mvi->phy[i];
+ struct mvs_port *port = phy->port;;
+
+ tmp = mvs_read_phy_ctl(mvi, i);
+
+ if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) {
+ if (!port)
+ phy->phy_attached = 1;
+ return tmp;
+ }
+
+ if (port) {
+ if (phy->phy_type & PORT_TYPE_SAS) {
+ port->wide_port_phymap &= ~(1U << i);
+ if (!port->wide_port_phymap)
+ port->port_attached = 0;
+ mvs_update_wideport(mvi, i);
+ } else if (phy->phy_type & PORT_TYPE_SATA)
+ port->port_attached = 0;
+ mvs_free_reg_set(mvi, phy->port);
+ phy->port = NULL;
+ phy->phy_attached = 0;
+ phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+ }
+ return 0;
+}
+
+static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf)
+{
+ u32 *s = (u32 *) buf;
+
+ if (!s)
+ return NULL;
+
+ mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3);
+ s[3] = mvs_read_port_cfg_data(mvi, i);
+
+ mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2);
+ s[2] = mvs_read_port_cfg_data(mvi, i);
+
+ mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1);
+ s[1] = mvs_read_port_cfg_data(mvi, i);
+
+ mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0);
+ s[0] = mvs_read_port_cfg_data(mvi, i);
+
+ return (void *)s;
+}
+
+static u32 mvs_is_sig_fis_received(u32 irq_status)
+{
+ return irq_status & PHYEV_SIG_FIS;
+}
+
+static void mvs_update_phyinfo(struct mvs_info *mvi, int i,
+ int get_st)
+{
+ struct mvs_phy *phy = &mvi->phy[i];
+ struct pci_dev *pdev = mvi->pdev;
+ u32 tmp;
+ u64 tmp64;
+
+ mvs_write_port_cfg_addr(mvi, i, PHYR_IDENTIFY);
+ phy->dev_info = mvs_read_port_cfg_data(mvi, i);
- if (!sas_protocol_ata(t->task_proto)) {
- if (t->num_scatter) {
- n_elem = pci_map_sg(mvi->pdev, t->scatter,
- t->num_scatter,
- t->data_dir);
- if (!n_elem) {
- rc = -ENOMEM;
- goto err_out;
- }
- }
- } else {
- n_elem = t->num_scatter;
- }
+ mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_HI);
+ phy->dev_sas_addr = (u64) mvs_read_port_cfg_data(mvi, i) << 32;
- rc = mvs_tag_alloc(mvi, &tag);
- if (rc)
- goto err_out;
+ mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_LO);
+ phy->dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
- slot = &mvi->slot_info[tag];
- t->lldd_task = NULL;
- slot->n_elem = n_elem;
- memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
- tei.task = t;
- tei.hdr = &mvi->slot[tag];
- tei.tag = tag;
- tei.n_elem = n_elem;
+ if (get_st) {
+ phy->irq_status = mvs_read_port_irq_stat(mvi, i);
+ phy->phy_status = mvs_is_phy_ready(mvi, i);
+ }
- switch (t->task_proto) {
- case SAS_PROTOCOL_SMP:
- rc = mvs_task_prep_smp(mvi, &tei);
- break;
- case SAS_PROTOCOL_SSP:
- rc = mvs_task_prep_ssp(mvi, &tei);
- break;
- case SAS_PROTOCOL_SATA:
- case SAS_PROTOCOL_STP:
- case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
- rc = mvs_task_prep_ata(mvi, &tei);
- break;
- default:
- dev_printk(KERN_ERR, &pdev->dev,
- "unknown sas_task proto: 0x%x\n",
- t->task_proto);
- rc = -EINVAL;
- break;
- }
+ if (phy->phy_status) {
+ u32 phy_st;
+ struct asd_sas_phy *sas_phy = mvi->sas.sas_phy[i];
- if (rc)
- goto err_out_tag;
+ mvs_write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
+ phy_st = mvs_read_port_cfg_data(mvi, i);
- slot->task = t;
- slot->port = tei.port;
- t->lldd_task = (void *) slot;
- list_add_tail(&slot->list, &slot->port->list);
- /* TODO: select normal or high priority */
+ sas_phy->linkrate =
+ (phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
+ PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
+ phy->minimum_linkrate =
+ (phy->phy_status &
+ PHY_MIN_SPP_PHYS_LINK_RATE_MASK) >> 8;
+ phy->maximum_linkrate =
+ (phy->phy_status &
+ PHY_MAX_SPP_PHYS_LINK_RATE_MASK) >> 12;
- spin_lock(&t->task_state_lock);
- t->task_state_flags |= SAS_TASK_AT_INITIATOR;
- spin_unlock(&t->task_state_lock);
+ if (phy->phy_type & PORT_TYPE_SAS) {
+ /* Updated attached_sas_addr */
+ mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_HI);
+ phy->att_dev_sas_addr =
+ (u64) mvs_read_port_cfg_data(mvi, i) << 32;
+ mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_LO);
+ phy->att_dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
+ mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_DEV_INFO);
+ phy->att_dev_info = mvs_read_port_cfg_data(mvi, i);
+ phy->identify.device_type =
+ phy->att_dev_info & PORT_DEV_TYPE_MASK;
- mvs_hba_memory_dump(mvi, tag, t->task_proto);
+ if (phy->identify.device_type == SAS_END_DEV)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SSP;
+ else if (phy->identify.device_type != NO_DEVICE)
+ phy->identify.target_port_protocols =
+ SAS_PROTOCOL_SMP;
+ if (phy_st & PHY_OOB_DTCTD)
+ sas_phy->oob_mode = SAS_OOB_MODE;
+ phy->frame_rcvd_size =
+ sizeof(struct sas_identify_frame);
+ } else if (phy->phy_type & PORT_TYPE_SATA) {
+ phy->identify.target_port_protocols = SAS_PROTOCOL_STP;
+ if (mvs_is_sig_fis_received(phy->irq_status)) {
+ phy->att_dev_sas_addr = i; /* temp */
+ if (phy_st & PHY_OOB_DTCTD)
+ sas_phy->oob_mode = SATA_OOB_MODE;
+ phy->frame_rcvd_size =
+ sizeof(struct dev_to_host_fis);
+ mvs_get_d2h_reg(mvi, i,
+ (void *)sas_phy->frame_rcvd);
+ } else {
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "No sig fis\n");
+ phy->phy_type &= ~(PORT_TYPE_SATA);
+ goto out_done;
+ }
+ }
+ tmp64 = cpu_to_be64(phy->att_dev_sas_addr);
+ memcpy(sas_phy->attached_sas_addr, &tmp64, SAS_ADDR_SIZE);
- ++pass;
- mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);
- if (n > 1)
- t = list_entry(t->list.next, struct sas_task, list);
- } while (--n);
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "phy[%d] Get Attached Address 0x%llX ,"
+ " SAS Address 0x%llX\n",
+ i,
+ (unsigned long long)phy->att_dev_sas_addr,
+ (unsigned long long)phy->dev_sas_addr);
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "Rate = %x , type = %d\n",
+ sas_phy->linkrate, phy->phy_type);
- rc = 0;
- goto out_done;
+ /* workaround for HW phy decoding error on 1.5g disk drive */
+ mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE6);
+ tmp = mvs_read_port_vsr_data(mvi, i);
+ if (((phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
+ PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET) ==
+ SAS_LINK_RATE_1_5_GBPS)
+ tmp &= ~PHY_MODE6_LATECLK;
+ else
+ tmp |= PHY_MODE6_LATECLK;
+ mvs_write_port_vsr_data(mvi, i, tmp);
-err_out_tag:
- mvs_tag_free(mvi, tag);
-err_out:
- dev_printk(KERN_ERR, &pdev->dev, "mvsas exec failed[%d]!\n", rc);
- if (!sas_protocol_ata(t->task_proto))
- if (n_elem)
- pci_unmap_sg(mvi->pdev, t->scatter, n_elem,
- t->data_dir);
+ }
out_done:
- if (pass)
- mw32(TX_PROD_IDX, (mvi->tx_prod - 1) & (MVS_CHIP_SLOT_SZ - 1));
- spin_unlock_irqrestore(&mvi->lock, flags);
- return rc;
+ if (get_st)
+ mvs_write_port_irq_stat(mvi, i, phy->irq_status);
}
-static int mvs_task_abort(struct sas_task *task)
+void mvs_port_formed(struct asd_sas_phy *sas_phy)
{
- int rc;
+ struct sas_ha_struct *sas_ha = sas_phy->ha;
+ struct mvs_info *mvi = sas_ha->lldd_ha;
+ struct asd_sas_port *sas_port = sas_phy->port;
+ struct mvs_phy *phy = sas_phy->lldd_phy;
+ struct mvs_port *port = &mvi->port[sas_port->id];
unsigned long flags;
- struct mvs_info *mvi = task->dev->port->ha->lldd_ha;
- struct pci_dev *pdev = mvi->pdev;
- int tag;
- spin_lock_irqsave(&task->task_state_lock, flags);
- if (task->task_state_flags & SAS_TASK_STATE_DONE) {
- rc = TMF_RESP_FUNC_COMPLETE;
- spin_unlock_irqrestore(&task->task_state_lock, flags);
- goto out_done;
+ spin_lock_irqsave(&mvi->lock, flags);
+ port->port_attached = 1;
+ phy->port = port;
+ port->taskfileset = MVS_ID_NOT_MAPPED;
+ if (phy->phy_type & PORT_TYPE_SAS) {
+ port->wide_port_phymap = sas_port->phy_mask;
+ mvs_update_wideport(mvi, sas_phy->id);
}
- spin_unlock_irqrestore(&task->task_state_lock, flags);
+ spin_unlock_irqrestore(&mvi->lock, flags);
+}
+
+int mvs_I_T_nexus_reset(struct domain_device *dev)
+{
+ return TMF_RESP_FUNC_FAILED;
+}
+
+static int mvs_sata_done(struct mvs_info *mvi, struct sas_task *task,
+ u32 slot_idx, int err)
+{
+ struct mvs_port *port = mvi->slot_info[slot_idx].port;
+ struct task_status_struct *tstat = &task->task_status;
+ struct ata_task_resp *resp = (struct ata_task_resp *)tstat->buf;
+ int stat = SAM_GOOD;
+
+ resp->frame_len = sizeof(struct dev_to_host_fis);
+ memcpy(&resp->ending_fis[0],
+ SATA_RECEIVED_D2H_FIS(port->taskfileset),
+ sizeof(struct dev_to_host_fis));
+ tstat->buf_valid_size = sizeof(*resp);
+ if (unlikely(err))
+ stat = SAS_PROTO_RESPONSE;
+ return stat;
+}
+
+static int mvs_slot_err(struct mvs_info *mvi, struct sas_task *task,
+ u32 slot_idx)
+{
+ struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
+ u32 err_dw0 = le32_to_cpu(*(u32 *) (slot->response));
+ u32 err_dw1 = le32_to_cpu(*(u32 *) (slot->response + 4));
+ int stat = SAM_CHECK_COND;
+ if (err_dw1 & SLOT_BSY_ERR) {
+ stat = SAS_QUEUE_FULL;
+ mvs_slot_reset(mvi, task, slot_idx);
+ }
switch (task->task_proto) {
- case SAS_PROTOCOL_SMP:
- dev_printk(KERN_DEBUG, &pdev->dev, "SMP Abort! \n");
- break;
case SAS_PROTOCOL_SSP:
- dev_printk(KERN_DEBUG, &pdev->dev, "SSP Abort! \n");
+ break;
+ case SAS_PROTOCOL_SMP:
break;
case SAS_PROTOCOL_SATA:
case SAS_PROTOCOL_STP:
- case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:{
- dev_printk(KERN_DEBUG, &pdev->dev, "STP Abort! \n");
-#if _MV_DUMP
- dev_printk(KERN_DEBUG, &pdev->dev, "Dump D2H FIS: \n");
- mvs_hexdump(sizeof(struct host_to_dev_fis),
- (void *)&task->ata_task.fis, 0);
- dev_printk(KERN_DEBUG, &pdev->dev, "Dump ATAPI Cmd : \n");
- mvs_hexdump(16, task->ata_task.atapi_packet, 0);
-#endif
- spin_lock_irqsave(&task->task_state_lock, flags);
- if (task->task_state_flags & SAS_TASK_NEED_DEV_RESET) {
- /* TODO */
- ;
- }
- spin_unlock_irqrestore(&task->task_state_lock, flags);
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
+ if (err_dw0 & TFILE_ERR)
+ stat = mvs_sata_done(mvi, task, slot_idx, 1);
break;
- }
default:
break;
}
- if (mvs_find_tag(mvi, task, &tag)) {
- spin_lock_irqsave(&mvi->lock, flags);
- mvs_slot_task_free(mvi, task, &mvi->slot_info[tag], tag);
- spin_unlock_irqrestore(&mvi->lock, flags);
- }
- if (!mvs_task_exec(task, 1, GFP_ATOMIC))
- rc = TMF_RESP_FUNC_COMPLETE;
- else
- rc = TMF_RESP_FUNC_FAILED;
-out_done:
- return rc;
+ mvs_hexdump(16, (u8 *) slot->response, 0);
+ return stat;
}
-static void mvs_free(struct mvs_info *mvi)
+static int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags)
{
- int i;
+ u32 slot_idx = rx_desc & RXQ_SLOT_MASK;
+ struct mvs_slot_info *slot = &mvi->slot_info[slot_idx];
+ struct sas_task *task = slot->task;
+ struct task_status_struct *tstat;
+ struct mvs_port *port;
+ bool aborted;
+ void *to;
- if (!mvi)
- return;
+ if (unlikely(!task || !task->lldd_task))
+ return -1;
- for (i = 0; i < MVS_SLOTS; i++) {
- struct mvs_slot_info *slot = &mvi->slot_info[i];
+ mvs_hba_cq_dump(mvi);
- if (slot->buf)
- dma_free_coherent(&mvi->pdev->dev, MVS_SLOT_BUF_SZ,
- slot->buf, slot->buf_dma);
+ spin_lock(&task->task_state_lock);
+ aborted = task->task_state_flags & SAS_TASK_STATE_ABORTED;
+ if (!aborted) {
+ task->task_state_flags &=
+ ~(SAS_TASK_STATE_PENDING | SAS_TASK_AT_INITIATOR);
+ task->task_state_flags |= SAS_TASK_STATE_DONE;
}
+ spin_unlock(&task->task_state_lock);
- if (mvi->tx)
- dma_free_coherent(&mvi->pdev->dev,
- sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
- mvi->tx, mvi->tx_dma);
- if (mvi->rx_fis)
- dma_free_coherent(&mvi->pdev->dev, MVS_RX_FISL_SZ,
- mvi->rx_fis, mvi->rx_fis_dma);
- if (mvi->rx)
- dma_free_coherent(&mvi->pdev->dev,
- sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
- mvi->rx, mvi->rx_dma);
- if (mvi->slot)
- dma_free_coherent(&mvi->pdev->dev,
- sizeof(*mvi->slot) * MVS_SLOTS,
- mvi->slot, mvi->slot_dma);
-#ifdef MVS_ENABLE_PERI
- if (mvi->peri_regs)
- iounmap(mvi->peri_regs);
-#endif
- if (mvi->regs)
- iounmap(mvi->regs);
- if (mvi->shost)
- scsi_host_put(mvi->shost);
- kfree(mvi->sas.sas_port);
- kfree(mvi->sas.sas_phy);
- kfree(mvi);
-}
+ if (aborted) {
+ mvs_slot_task_free(mvi, task, slot, slot_idx);
+ mvs_slot_free(mvi, rx_desc);
+ return -1;
+ }
-/* FIXME: locking? */
-static int mvs_phy_control(struct asd_sas_phy *sas_phy, enum phy_func func,
- void *funcdata)
-{
- struct mvs_info *mvi = sas_phy->ha->lldd_ha;
- int rc = 0, phy_id = sas_phy->id;
- u32 tmp;
+ port = slot->port;
+ tstat = &task->task_status;
+ memset(tstat, 0, sizeof(*tstat));
+ tstat->resp = SAS_TASK_COMPLETE;
- tmp = mvs_read_phy_ctl(mvi, phy_id);
+ if (unlikely(!port->port_attached || flags)) {
+ mvs_slot_err(mvi, task, slot_idx);
+ if (!sas_protocol_ata(task->task_proto))
+ tstat->stat = SAS_PHY_DOWN;
+ goto out;
+ }
- switch (func) {
- case PHY_FUNC_SET_LINK_RATE:{
- struct sas_phy_linkrates *rates = funcdata;
- u32 lrmin = 0, lrmax = 0;
+ /* error info record present */
+ if (unlikely((rx_desc & RXQ_ERR) && (*(u64 *) slot->response))) {
+ tstat->stat = mvs_slot_err(mvi, task, slot_idx);
+ goto out;
+ }
- lrmin = (rates->minimum_linkrate << 8);
- lrmax = (rates->maximum_linkrate << 12);
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SSP:
+ /* hw says status == 0, datapres == 0 */
+ if (rx_desc & RXQ_GOOD) {
+ tstat->stat = SAM_GOOD;
+ tstat->resp = SAS_TASK_COMPLETE;
+ }
+ /* response frame present */
+ else if (rx_desc & RXQ_RSP) {
+ struct ssp_response_iu *iu =
+ slot->response + sizeof(struct mvs_err_info);
+ sas_ssp_task_response(&mvi->pdev->dev, task, iu);
+ }
- if (lrmin) {
- tmp &= ~(0xf << 8);
- tmp |= lrmin;
- }
- if (lrmax) {
- tmp &= ~(0xf << 12);
- tmp |= lrmax;
- }
- mvs_write_phy_ctl(mvi, phy_id, tmp);
+ /* should never happen? */
+ else
+ tstat->stat = SAM_CHECK_COND;
+ break;
+
+ case SAS_PROTOCOL_SMP: {
+ struct scatterlist *sg_resp = &task->smp_task.smp_resp;
+ tstat->stat = SAM_GOOD;
+ to = kmap_atomic(sg_page(sg_resp), KM_IRQ0);
+ memcpy(to + sg_resp->offset,
+ slot->response + sizeof(struct mvs_err_info),
+ sg_dma_len(sg_resp));
+ kunmap_atomic(to, KM_IRQ0);
break;
}
- case PHY_FUNC_HARD_RESET:
- if (tmp & PHY_RST_HARD)
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: {
+ tstat->stat = mvs_sata_done(mvi, task, slot_idx, 0);
break;
- mvs_write_phy_ctl(mvi, phy_id, tmp | PHY_RST_HARD);
- break;
-
- case PHY_FUNC_LINK_RESET:
- mvs_write_phy_ctl(mvi, phy_id, tmp | PHY_RST);
- break;
+ }
- case PHY_FUNC_DISABLE:
- case PHY_FUNC_RELEASE_SPINUP_HOLD:
default:
- rc = -EOPNOTSUPP;
+ tstat->stat = SAM_CHECK_COND;
+ break;
}
- return rc;
-}
-
-static void __devinit mvs_phy_init(struct mvs_info *mvi, int phy_id)
-{
- struct mvs_phy *phy = &mvi->phy[phy_id];
- struct asd_sas_phy *sas_phy = &phy->sas_phy;
+out:
+ mvs_slot_task_free(mvi, task, slot, slot_idx);
+ if (unlikely(tstat->stat != SAS_QUEUE_FULL))
+ mvs_slot_free(mvi, rx_desc);
- sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
- sas_phy->class = SAS;
- sas_phy->iproto = SAS_PROTOCOL_ALL;
- sas_phy->tproto = 0;
- sas_phy->type = PHY_TYPE_PHYSICAL;
- sas_phy->role = PHY_ROLE_INITIATOR;
- sas_phy->oob_mode = OOB_NOT_CONNECTED;
- sas_phy->linkrate = SAS_LINK_RATE_UNKNOWN;
-
- sas_phy->id = phy_id;
- sas_phy->sas_addr = &mvi->sas_addr[0];
- sas_phy->frame_rcvd = &phy->frame_rcvd[0];
- sas_phy->ha = &mvi->sas;
- sas_phy->lldd_phy = phy;
+ spin_unlock(&mvi->lock);
+ task->task_done(task);
+ spin_lock(&mvi->lock);
+ return tstat->stat;
}
-static struct mvs_info *__devinit mvs_alloc(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+static void mvs_release_task(struct mvs_info *mvi, int phy_no)
{
- struct mvs_info *mvi;
- unsigned long res_start, res_len, res_flag;
- struct asd_sas_phy **arr_phy;
- struct asd_sas_port **arr_port;
- const struct mvs_chip_info *chip = &mvs_chips[ent->driver_data];
- int i;
-
- /*
- * alloc and init our per-HBA mvs_info struct
- */
-
- mvi = kzalloc(sizeof(*mvi), GFP_KERNEL);
- if (!mvi)
- return NULL;
-
- spin_lock_init(&mvi->lock);
-#ifdef MVS_USE_TASKLET
- tasklet_init(&mvi->tasklet, mvs_tasklet, (unsigned long)mvi);
-#endif
- mvi->pdev = pdev;
- mvi->chip = chip;
-
- if (pdev->device == 0x6440 && pdev->revision == 0)
- mvi->flags |= MVF_PHY_PWR_FIX;
-
- /*
- * alloc and init SCSI, SAS glue
- */
-
- mvi->shost = scsi_host_alloc(&mvs_sht, sizeof(void *));
- if (!mvi->shost)
- goto err_out;
+ struct list_head *pos, *n;
+ struct mvs_slot_info *slot;
+ struct mvs_phy *phy = &mvi->phy[phy_no];
+ struct mvs_port *port = phy->port;
+ u32 rx_desc;
- arr_phy = kcalloc(MVS_MAX_PHYS, sizeof(void *), GFP_KERNEL);
- arr_port = kcalloc(MVS_MAX_PHYS, sizeof(void *), GFP_KERNEL);
- if (!arr_phy || !arr_port)
- goto err_out;
+ if (!port)
+ return;
- for (i = 0; i < MVS_MAX_PHYS; i++) {
- mvs_phy_init(mvi, i);
- arr_phy[i] = &mvi->phy[i].sas_phy;
- arr_port[i] = &mvi->port[i].sas_port;
- mvi->port[i].taskfileset = MVS_ID_NOT_MAPPED;
- mvi->port[i].wide_port_phymap = 0;
- mvi->port[i].port_attached = 0;
- INIT_LIST_HEAD(&mvi->port[i].list);
+ list_for_each_safe(pos, n, &port->list) {
+ slot = container_of(pos, struct mvs_slot_info, list);
+ rx_desc = (u32) (slot - mvi->slot_info);
+ mvs_slot_complete(mvi, rx_desc, 1);
}
+}
- SHOST_TO_SAS_HA(mvi->shost) = &mvi->sas;
- mvi->shost->transportt = mvs_stt;
- mvi->shost->max_id = 21;
- mvi->shost->max_lun = ~0;
- mvi->shost->max_channel = 0;
- mvi->shost->max_cmd_len = 16;
-
- mvi->sas.sas_ha_name = DRV_NAME;
- mvi->sas.dev = &pdev->dev;
- mvi->sas.lldd_module = THIS_MODULE;
- mvi->sas.sas_addr = &mvi->sas_addr[0];
- mvi->sas.sas_phy = arr_phy;
- mvi->sas.sas_port = arr_port;
- mvi->sas.num_phys = chip->n_phy;
- mvi->sas.lldd_max_execute_num = 1;
- mvi->sas.lldd_queue_size = MVS_QUEUE_SIZE;
- mvi->shost->can_queue = MVS_CAN_QUEUE;
- mvi->shost->cmd_per_lun = MVS_SLOTS / mvi->sas.num_phys;
- mvi->sas.lldd_ha = mvi;
- mvi->sas.core.shost = mvi->shost;
-
- mvs_tag_init(mvi);
-
- /*
- * ioremap main and peripheral registers
- */
-
-#ifdef MVS_ENABLE_PERI
- res_start = pci_resource_start(pdev, 2);
- res_len = pci_resource_len(pdev, 2);
- if (!res_start || !res_len)
- goto err_out;
-
- mvi->peri_regs = ioremap_nocache(res_start, res_len);
- if (!mvi->peri_regs)
- goto err_out;
-#endif
-
- res_start = pci_resource_start(pdev, 4);
- res_len = pci_resource_len(pdev, 4);
- if (!res_start || !res_len)
- goto err_out;
-
- res_flag = pci_resource_flags(pdev, 4);
- if (res_flag & IORESOURCE_CACHEABLE)
- mvi->regs = ioremap(res_start, res_len);
- else
- mvi->regs = ioremap_nocache(res_start, res_len);
-
- if (!mvi->regs)
- goto err_out;
+static void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events)
+{
+ struct pci_dev *pdev = mvi->pdev;
+ struct sas_ha_struct *sas_ha = &mvi->sas;
+ struct mvs_phy *phy = &mvi->phy[phy_no];
+ struct asd_sas_phy *sas_phy = &phy->sas_phy;
+ phy->irq_status = mvs_read_port_irq_stat(mvi, phy_no);
/*
- * alloc and init our DMA areas
- */
-
- mvi->tx = dma_alloc_coherent(&pdev->dev,
- sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ,
- &mvi->tx_dma, GFP_KERNEL);
- if (!mvi->tx)
- goto err_out;
- memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ);
-
- mvi->rx_fis = dma_alloc_coherent(&pdev->dev, MVS_RX_FISL_SZ,
- &mvi->rx_fis_dma, GFP_KERNEL);
- if (!mvi->rx_fis)
- goto err_out;
- memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ);
-
- mvi->rx = dma_alloc_coherent(&pdev->dev,
- sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1),
- &mvi->rx_dma, GFP_KERNEL);
- if (!mvi->rx)
- goto err_out;
- memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1));
-
- mvi->rx[0] = cpu_to_le32(0xfff);
- mvi->rx_cons = 0xfff;
-
- mvi->slot = dma_alloc_coherent(&pdev->dev,
- sizeof(*mvi->slot) * MVS_SLOTS,
- &mvi->slot_dma, GFP_KERNEL);
- if (!mvi->slot)
- goto err_out;
- memset(mvi->slot, 0, sizeof(*mvi->slot) * MVS_SLOTS);
+ * events is port event now ,
+ * we need check the interrupt status which belongs to per port.
+ */
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "Port %d Event = %X\n",
+ phy_no, phy->irq_status);
- for (i = 0; i < MVS_SLOTS; i++) {
- struct mvs_slot_info *slot = &mvi->slot_info[i];
+ if (phy->irq_status & (PHYEV_POOF | PHYEV_DEC_ERR)) {
+ mvs_release_task(mvi, phy_no);
+ if (!mvs_is_phy_ready(mvi, phy_no)) {
+ sas_phy_disconnected(sas_phy);
+ sas_ha->notify_phy_event(sas_phy, PHYE_LOSS_OF_SIGNAL);
+ dev_printk(KERN_INFO, &pdev->dev,
+ "Port %d Unplug Notice\n", phy_no);
- slot->buf = dma_alloc_coherent(&pdev->dev, MVS_SLOT_BUF_SZ,
- &slot->buf_dma, GFP_KERNEL);
- if (!slot->buf)
- goto err_out;
- memset(slot->buf, 0, MVS_SLOT_BUF_SZ);
+ } else
+ mvs_phy_control(sas_phy, PHY_FUNC_LINK_RESET, NULL);
}
+ if (!(phy->irq_status & PHYEV_DEC_ERR)) {
+ if (phy->irq_status & PHYEV_COMWAKE) {
+ u32 tmp = mvs_read_port_irq_mask(mvi, phy_no);
+ mvs_write_port_irq_mask(mvi, phy_no,
+ tmp | PHYEV_SIG_FIS);
+ }
+ if (phy->irq_status & (PHYEV_SIG_FIS | PHYEV_ID_DONE)) {
+ phy->phy_status = mvs_is_phy_ready(mvi, phy_no);
+ if (phy->phy_status) {
+ mvs_detect_porttype(mvi, phy_no);
- /* finally, read NVRAM to get our SAS address */
- if (mvs_nvram_read(mvi, NVR_SAS_ADDR, &mvi->sas_addr, 8))
- goto err_out;
- return mvi;
-
-err_out:
- mvs_free(mvi);
- return NULL;
-}
-
-static u32 mvs_cr32(void __iomem *regs, u32 addr)
-{
- mw32(CMD_ADDR, addr);
- return mr32(CMD_DATA);
-}
-
-static void mvs_cw32(void __iomem *regs, u32 addr, u32 val)
-{
- mw32(CMD_ADDR, addr);
- mw32(CMD_DATA, val);
-}
+ if (phy->phy_type & PORT_TYPE_SATA) {
+ u32 tmp = mvs_read_port_irq_mask(mvi,
+ phy_no);
+ tmp &= ~PHYEV_SIG_FIS;
+ mvs_write_port_irq_mask(mvi,
+ phy_no, tmp);
+ }
-static u32 mvs_read_phy_ctl(struct mvs_info *mvi, u32 port)
-{
- void __iomem *regs = mvi->regs;
- return (port < 4)?mr32(P0_SER_CTLSTAT + port * 4):
- mr32(P4_SER_CTLSTAT + (port - 4) * 4);
+ mvs_update_phyinfo(mvi, phy_no, 0);
+ sas_ha->notify_phy_event(sas_phy,
+ PHYE_OOB_DONE);
+ mvs_bytes_dmaed(mvi, phy_no);
+ } else {
+ dev_printk(KERN_DEBUG, &pdev->dev,
+ "plugin interrupt but phy is gone\n");
+ mvs_phy_control(sas_phy, PHY_FUNC_LINK_RESET,
+ NULL);
+ }
+ } else if (phy->irq_status & PHYEV_BROAD_CH) {
+ mvs_release_task(mvi, phy_no);
+ sas_ha->notify_port_event(sas_phy,
+ PORTE_BROADCAST_RCVD);
+ }
+ }
+ mvs_write_port_irq_stat(mvi, phy_no, phy->irq_status);
}
-static void mvs_write_phy_ctl(struct mvs_info *mvi, u32 port, u32 val)
+static int mvs_int_rx(struct mvs_info *mvi, bool self_clear)
{
void __iomem *regs = mvi->regs;
- if (port < 4)
- mw32(P0_SER_CTLSTAT + port * 4, val);
- else
- mw32(P4_SER_CTLSTAT + (port - 4) * 4, val);
-}
-
-static u32 mvs_read_port(struct mvs_info *mvi, u32 off, u32 off2, u32 port)
-{
- void __iomem *regs = mvi->regs + off;
- void __iomem *regs2 = mvi->regs + off2;
- return (port < 4)?readl(regs + port * 8):
- readl(regs2 + (port - 4) * 8);
-}
+ u32 rx_prod_idx, rx_desc;
+ bool attn = false;
+ struct pci_dev *pdev = mvi->pdev;
-static void mvs_write_port(struct mvs_info *mvi, u32 off, u32 off2,
- u32 port, u32 val)
-{
- void __iomem *regs = mvi->regs + off;
- void __iomem *regs2 = mvi->regs + off2;
- if (port < 4)
- writel(val, regs + port * 8);
- else
- writel(val, regs2 + (port - 4) * 8);
-}
+ /* the first dword in the RX ring is special: it contains
+ * a mirror of the hardware's RX producer index, so that
+ * we don't have to stall the CPU reading that register.
+ * The actual RX ring is offset by one dword, due to this.
+ */
+ rx_prod_idx = mvi->rx_cons;
+ mvi->rx_cons = le32_to_cpu(mvi->rx[0]);
+ if (mvi->rx_cons == 0xfff) /* h/w hasn't touched RX ring yet */
+ return 0;
-static u32 mvs_read_port_cfg_data(struct mvs_info *mvi, u32 port)
-{
- return mvs_read_port(mvi, MVS_P0_CFG_DATA, MVS_P4_CFG_DATA, port);
-}
+ /* The CMPL_Q may come late, read from register and try again
+ * note: if coalescing is enabled,
+ * it will need to read from register every time for sure
+ */
+ if (mvi->rx_cons == rx_prod_idx)
+ mvi->rx_cons = mr32(RX_CONS_IDX) & RX_RING_SZ_MASK;
-static void mvs_write_port_cfg_data(struct mvs_info *mvi, u32 port, u32 val)
-{
- mvs_write_port(mvi, MVS_P0_CFG_DATA, MVS_P4_CFG_DATA, port, val);
-}
+ if (mvi->rx_cons == rx_prod_idx)
+ return 0;
-static void mvs_write_port_cfg_addr(struct mvs_info *mvi, u32 port, u32 addr)
-{
- mvs_write_port(mvi, MVS_P0_CFG_ADDR, MVS_P4_CFG_ADDR, port, addr);
-}
+ while (mvi->rx_cons != rx_prod_idx) {
-static u32 mvs_read_port_vsr_data(struct mvs_info *mvi, u32 port)
-{
- return mvs_read_port(mvi, MVS_P0_VSR_DATA, MVS_P4_VSR_DATA, port);
-}
+ /* increment our internal RX consumer pointer */
+ rx_prod_idx = (rx_prod_idx + 1) & (MVS_RX_RING_SZ - 1);
-static void mvs_write_port_vsr_data(struct mvs_info *mvi, u32 port, u32 val)
-{
- mvs_write_port(mvi, MVS_P0_VSR_DATA, MVS_P4_VSR_DATA, port, val);
-}
+ rx_desc = le32_to_cpu(mvi->rx[rx_prod_idx + 1]);
-static void mvs_write_port_vsr_addr(struct mvs_info *mvi, u32 port, u32 addr)
-{
- mvs_write_port(mvi, MVS_P0_VSR_ADDR, MVS_P4_VSR_ADDR, port, addr);
-}
+ if (likely(rx_desc & RXQ_DONE))
+ mvs_slot_complete(mvi, rx_desc, 0);
+ if (rx_desc & RXQ_ATTN) {
+ attn = true;
+ dev_printk(KERN_DEBUG, &pdev->dev, "ATTN %X\n",
+ rx_desc);
+ } else if (rx_desc & RXQ_ERR) {
+ if (!(rx_desc & RXQ_DONE))
+ mvs_slot_complete(mvi, rx_desc, 0);
+ dev_printk(KERN_DEBUG, &pdev->dev, "RXQ_ERR %X\n",
+ rx_desc);
+ } else if (rx_desc & RXQ_SLOT_RESET) {
+ dev_printk(KERN_DEBUG, &pdev->dev, "Slot reset[%X]\n",
+ rx_desc);
+ mvs_slot_free(mvi, rx_desc);
+ }
+ }
-static u32 mvs_read_port_irq_stat(struct mvs_info *mvi, u32 port)
-{
- return mvs_read_port(mvi, MVS_P0_INT_STAT, MVS_P4_INT_STAT, port);
-}
+ if (attn && self_clear)
+ mvs_int_full(mvi);
-static void mvs_write_port_irq_stat(struct mvs_info *mvi, u32 port, u32 val)
-{
- mvs_write_port(mvi, MVS_P0_INT_STAT, MVS_P4_INT_STAT, port, val);
+ return 0;
}
-static u32 mvs_read_port_irq_mask(struct mvs_info *mvi, u32 port)
+#ifndef MVS_DISABLE_NVRAM
+static int mvs_eep_read(void __iomem *regs, u32 addr, u32 *data)
{
- return mvs_read_port(mvi, MVS_P0_INT_MASK, MVS_P4_INT_MASK, port);
-}
+ int timeout = 1000;
-static void mvs_write_port_irq_mask(struct mvs_info *mvi, u32 port, u32 val)
-{
- mvs_write_port(mvi, MVS_P0_INT_MASK, MVS_P4_INT_MASK, port, val);
-}
+ if (addr & ~SPI_ADDR_MASK)
+ return -EINVAL;
-static void __devinit mvs_phy_hacks(struct mvs_info *mvi)
-{
- void __iomem *regs = mvi->regs;
- u32 tmp;
+ writel(addr, regs + SPI_CMD);
+ writel(TWSI_RD, regs + SPI_CTL);
- /* workaround for SATA R-ERR, to ignore phy glitch */
- tmp = mvs_cr32(regs, CMD_PHY_TIMER);
- tmp &= ~(1 << 9);
- tmp |= (1 << 10);
- mvs_cw32(regs, CMD_PHY_TIMER, tmp);
+ while (timeout-- > 0) {
+ if (readl(regs + SPI_CTL) & TWSI_RDY) {
+ *data = readl(regs + SPI_DATA);
+ return 0;
+ }
- /* enable retry 127 times */
- mvs_cw32(regs, CMD_SAS_CTL1, 0x7f7f);
+ udelay(10);
+ }
- /* extend open frame timeout to max */
- tmp = mvs_cr32(regs, CMD_SAS_CTL0);
- tmp &= ~0xffff;
- tmp |= 0x3fff;
- mvs_cw32(regs, CMD_SAS_CTL0, tmp);
+ return -EBUSY;
+}
- /* workaround for WDTIMEOUT , set to 550 ms */
- mvs_cw32(regs, CMD_WD_TIMER, 0x86470);
+static int mvs_eep_read_buf(void __iomem *regs, u32 addr,
+ void *buf, u32 buflen)
+{
+ u32 addr_end, tmp_addr, i, j;
+ u32 tmp = 0;
+ int rc;
+ u8 *tmp8, *buf8 = buf;
- /* not to halt for different port op during wideport link change */
- mvs_cw32(regs, CMD_APP_ERR_CONFIG, 0xffefbf7d);
+ addr_end = addr + buflen;
+ tmp_addr = ALIGN(addr, 4);
+ if (addr > 0xff)
+ return -EINVAL;
- /* workaround for Seagate disk not-found OOB sequence, recv
- * COMINIT before sending out COMWAKE */
- tmp = mvs_cr32(regs, CMD_PHY_MODE_21);
- tmp &= 0x0000ffff;
- tmp |= 0x00fa0000;
- mvs_cw32(regs, CMD_PHY_MODE_21, tmp);
+ j = addr & 0x3;
+ if (j) {
+ rc = mvs_eep_read(regs, tmp_addr, &tmp);
+ if (rc)
+ return rc;
- tmp = mvs_cr32(regs, CMD_PHY_TIMER);
- tmp &= 0x1fffffff;
- tmp |= (2U << 29); /* 8 ms retry */
- mvs_cw32(regs, CMD_PHY_TIMER, tmp);
+ tmp8 = (u8 *)&tmp;
+ for (i = j; i < 4; i++)
+ *buf8++ = tmp8[i];
- /* TEST - for phy decoding error, adjust voltage levels */
- mw32(P0_VSR_ADDR + 0, 0x8);
- mw32(P0_VSR_DATA + 0, 0x2F0);
+ tmp_addr += 4;
+ }
- mw32(P0_VSR_ADDR + 8, 0x8);
- mw32(P0_VSR_DATA + 8, 0x2F0);
+ for (j = ALIGN(addr_end, 4); tmp_addr < j; tmp_addr += 4) {
+ rc = mvs_eep_read(regs, tmp_addr, &tmp);
+ if (rc)
+ return rc;
- mw32(P0_VSR_ADDR + 16, 0x8);
- mw32(P0_VSR_DATA + 16, 0x2F0);
+ memcpy(buf8, &tmp, 4);
+ buf8 += 4;
+ }
- mw32(P0_VSR_ADDR + 24, 0x8);
- mw32(P0_VSR_DATA + 24, 0x2F0);
+ if (tmp_addr < addr_end) {
+ rc = mvs_eep_read(regs, tmp_addr, &tmp);
+ if (rc)
+ return rc;
-}
+ tmp8 = (u8 *)&tmp;
+ j = addr_end - tmp_addr;
+ for (i = 0; i < j; i++)
+ *buf8++ = tmp8[i];
-static void mvs_enable_xmt(struct mvs_info *mvi, int PhyId)
-{
- void __iomem *regs = mvi->regs;
- u32 tmp;
+ tmp_addr += 4;
+ }
- tmp = mr32(PCS);
- if (mvi->chip->n_phy <= 4)
- tmp |= 1 << (PhyId + PCS_EN_PORT_XMT_SHIFT);
- else
- tmp |= 1 << (PhyId + PCS_EN_PORT_XMT_SHIFT2);
- mw32(PCS, tmp);
+ return 0;
}
+#endif
-static void mvs_detect_porttype(struct mvs_info *mvi, int i)
+int mvs_nvram_read(struct mvs_info *mvi, u32 addr, void *buf, u32 buflen)
{
+#ifndef MVS_DISABLE_NVRAM
void __iomem *regs = mvi->regs;
- u32 reg;
- struct mvs_phy *phy = &mvi->phy[i];
-
- /* TODO check & save device type */
- reg = mr32(GBL_PORT_TYPE);
-
- if (reg & MODE_SAS_SATA & (1 << i))
- phy->phy_type |= PORT_TYPE_SAS;
- else
- phy->phy_type |= PORT_TYPE_SATA;
-}
-
-static void *mvs_get_d2h_reg(struct mvs_info *mvi, int i, void *buf)
-{
- u32 *s = (u32 *) buf;
-
- if (!s)
- return NULL;
+ int rc, i;
+ u32 sum;
+ u8 hdr[2], *tmp;
+ const char *msg;
- mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG3);
- s[3] = mvs_read_port_cfg_data(mvi, i);
+ rc = mvs_eep_read_buf(regs, addr, &hdr, 2);
+ if (rc) {
+ msg = "nvram hdr read failed";
+ goto err_out;
+ }
+ rc = mvs_eep_read_buf(regs, addr + 2, buf, buflen);
+ if (rc) {
+ msg = "nvram read failed";
+ goto err_out;
+ }
- mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG2);
- s[2] = mvs_read_port_cfg_data(mvi, i);
+ if (hdr[0] != 0x5A) {
+ /* entry id */
+ msg = "invalid nvram entry id";
+ rc = -ENOENT;
+ goto err_out;
+ }
- mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG1);
- s[1] = mvs_read_port_cfg_data(mvi, i);
+ tmp = buf;
+ sum = ((u32)hdr[0]) + ((u32)hdr[1]);
+ for (i = 0; i < buflen; i++)
+ sum += ((u32)tmp[i]);
- mvs_write_port_cfg_addr(mvi, i, PHYR_SATA_SIG0);
- s[0] = mvs_read_port_cfg_data(mvi, i);
+ if (sum) {
+ msg = "nvram checksum failure";
+ rc = -EILSEQ;
+ goto err_out;
+ }
- return (void *)s;
-}
+ return 0;
-static u32 mvs_is_sig_fis_received(u32 irq_status)
-{
- return irq_status & PHYEV_SIG_FIS;
+err_out:
+ dev_printk(KERN_ERR, &mvi->pdev->dev, "%s", msg);
+ return rc;
+#else
+ /* FIXME , For SAS target mode */
+ memcpy(buf, "\x50\x05\x04\x30\x11\xab\x00\x00", 8);
+ return 0;
+#endif
}
-static void mvs_update_wideport(struct mvs_info *mvi, int i)
+static void mvs_int_sata(struct mvs_info *mvi)
{
- struct mvs_phy *phy = &mvi->phy[i];
- struct mvs_port *port = phy->port;
- int j, no;
-
- for_each_phy(port->wide_port_phymap, no, j, mvi->chip->n_phy)
- if (no & 1) {
- mvs_write_port_cfg_addr(mvi, no, PHYR_WIDE_PORT);
- mvs_write_port_cfg_data(mvi, no,
- port->wide_port_phymap);
- } else {
- mvs_write_port_cfg_addr(mvi, no, PHYR_WIDE_PORT);
- mvs_write_port_cfg_data(mvi, no, 0);
- }
+ u32 tmp;
+ void __iomem *regs = mvi->regs;
+ tmp = mr32(INT_STAT_SRS);
+ mw32(INT_STAT_SRS, tmp & 0xFFFF);
}
-static u32 mvs_is_phy_ready(struct mvs_info *mvi, int i)
+static void mvs_slot_reset(struct mvs_info *mvi, struct sas_task *task,
+ u32 slot_idx)
{
- u32 tmp;
- struct mvs_phy *phy = &mvi->phy[i];
- struct mvs_port *port = phy->port;;
-
- tmp = mvs_read_phy_ctl(mvi, i);
-
- if ((tmp & PHY_READY_MASK) && !(phy->irq_status & PHYEV_POOF)) {
- if (!port)
- phy->phy_attached = 1;
- return tmp;
- }
+ void __iomem *regs = mvi->regs;
+ struct domain_device *dev = task->dev;
+ struct asd_sas_port *sas_port = dev->port;
+ struct mvs_port *port = mvi->slot_info[slot_idx].port;
+ u32 reg_set, phy_mask;
- if (port) {
- if (phy->phy_type & PORT_TYPE_SAS) {
- port->wide_port_phymap &= ~(1U << i);
- if (!port->wide_port_phymap)
- port->port_attached = 0;
- mvs_update_wideport(mvi, i);
- } else if (phy->phy_type & PORT_TYPE_SATA)
- port->port_attached = 0;
- mvs_free_reg_set(mvi, phy->port);
- phy->port = NULL;
- phy->phy_attached = 0;
- phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
+ if (!sas_protocol_ata(task->task_proto)) {
+ reg_set = 0;
+ phy_mask = (port->wide_port_phymap) ? port->wide_port_phymap :
+ sas_port->phy_mask;
+ } else {
+ reg_set = port->taskfileset;
+ phy_mask = sas_port->phy_mask;
}
- return 0;
+ mvi->tx[mvi->tx_prod] = cpu_to_le32(TXQ_MODE_I | slot_idx |
+ (TXQ_CMD_SLOT_RESET << TXQ_CMD_SHIFT) |
+ (phy_mask << TXQ_PHY_SHIFT) |
+ (reg_set << TXQ_SRS_SHIFT));
+
+ mw32(TX_PROD_IDX, mvi->tx_prod);
+ mvi->tx_prod = (mvi->tx_prod + 1) & (MVS_CHIP_SLOT_SZ - 1);
}
-static void mvs_update_phyinfo(struct mvs_info *mvi, int i,
- int get_st)
+void mvs_int_full(struct mvs_info *mvi)
{
- struct mvs_phy *phy = &mvi->phy[i];
- struct pci_dev *pdev = mvi->pdev;
- u32 tmp;
- u64 tmp64;
-
- mvs_write_port_cfg_addr(mvi, i, PHYR_IDENTIFY);
- phy->dev_info = mvs_read_port_cfg_data(mvi, i);
+ void __iomem *regs = mvi->regs;
+ u32 tmp, stat;
+ int i;
- mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_HI);
- phy->dev_sas_addr = (u64) mvs_read_port_cfg_data(mvi, i) << 32;
+ stat = mr32(INT_STAT);
- mvs_write_port_cfg_addr(mvi, i, PHYR_ADDR_LO);
- phy->dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
+ mvs_int_rx(mvi, false);
- if (get_st) {
- phy->irq_status = mvs_read_port_irq_stat(mvi, i);
- phy->phy_status = mvs_is_phy_ready(mvi, i);
+ for (i = 0; i < MVS_MAX_PORTS; i++) {
+ tmp = (stat >> i) & (CINT_PORT | CINT_PORT_STOPPED);
+ if (tmp)
+ mvs_int_port(mvi, i, tmp);
}
- if (phy->phy_status) {
- u32 phy_st;
- struct asd_sas_phy *sas_phy = mvi->sas.sas_phy[i];
-
- mvs_write_port_cfg_addr(mvi, i, PHYR_PHY_STAT);
- phy_st = mvs_read_port_cfg_data(mvi, i);
-
- sas_phy->linkrate =
- (phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
- PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
- phy->minimum_linkrate =
- (phy->phy_status &
- PHY_MIN_SPP_PHYS_LINK_RATE_MASK) >> 8;
- phy->maximum_linkrate =
- (phy->phy_status &
- PHY_MAX_SPP_PHYS_LINK_RATE_MASK) >> 12;
+ if (stat & CINT_SRS)
+ mvs_int_sata(mvi);
- if (phy->phy_type & PORT_TYPE_SAS) {
- /* Updated attached_sas_addr */
- mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_HI);
- phy->att_dev_sas_addr =
- (u64) mvs_read_port_cfg_data(mvi, i) << 32;
- mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_LO);
- phy->att_dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
- mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_DEV_INFO);
- phy->att_dev_info = mvs_read_port_cfg_data(mvi, i);
- phy->identify.device_type =
- phy->att_dev_info & PORT_DEV_TYPE_MASK;
+ mw32(INT_STAT, stat);
+}
- if (phy->identify.device_type == SAS_END_DEV)
- phy->identify.target_port_protocols =
- SAS_PROTOCOL_SSP;
- else if (phy->identify.device_type != NO_DEVICE)
- phy->identify.target_port_protocols =
- SAS_PROTOCOL_SMP;
- if (phy_st & PHY_OOB_DTCTD)
- sas_phy->oob_mode = SAS_OOB_MODE;
- phy->frame_rcvd_size =
- sizeof(struct sas_identify_frame);
- } else if (phy->phy_type & PORT_TYPE_SATA) {
- phy->identify.target_port_protocols = SAS_PROTOCOL_STP;
- if (mvs_is_sig_fis_received(phy->irq_status)) {
- phy->att_dev_sas_addr = i; /* temp */
- if (phy_st & PHY_OOB_DTCTD)
- sas_phy->oob_mode = SATA_OOB_MODE;
- phy->frame_rcvd_size =
- sizeof(struct dev_to_host_fis);
- mvs_get_d2h_reg(mvi, i,
- (void *)sas_phy->frame_rcvd);
- } else {
- dev_printk(KERN_DEBUG, &pdev->dev,
- "No sig fis\n");
- phy->phy_type &= ~(PORT_TYPE_SATA);
- goto out_done;
- }
- }
- tmp64 = cpu_to_be64(phy->att_dev_sas_addr);
- memcpy(sas_phy->attached_sas_addr, &tmp64, SAS_ADDR_SIZE);
+#ifndef MVS_DISABLE_MSI
+static irqreturn_t mvs_msi_interrupt(int irq, void *opaque)
+{
+ struct mvs_info *mvi = opaque;
- dev_printk(KERN_DEBUG, &pdev->dev,
- "phy[%d] Get Attached Address 0x%llX ,"
- " SAS Address 0x%llX\n",
- i,
- (unsigned long long)phy->att_dev_sas_addr,
- (unsigned long long)phy->dev_sas_addr);
- dev_printk(KERN_DEBUG, &pdev->dev,
- "Rate = %x , type = %d\n",
- sas_phy->linkrate, phy->phy_type);
+#ifndef MVS_USE_TASKLET
+ spin_lock(&mvi->lock);
- /* workaround for HW phy decoding error on 1.5g disk drive */
- mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE6);
- tmp = mvs_read_port_vsr_data(mvi, i);
- if (((phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
- PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET) ==
- SAS_LINK_RATE_1_5_GBPS)
- tmp &= ~PHY_MODE6_LATECLK;
- else
- tmp |= PHY_MODE6_LATECLK;
- mvs_write_port_vsr_data(mvi, i, tmp);
+ mvs_int_rx(mvi, true);
- }
-out_done:
- if (get_st)
- mvs_write_port_irq_stat(mvi, i, phy->irq_status);
+ spin_unlock(&mvi->lock);
+#else
+ tasklet_schedule(&mvi->tasklet);
+#endif
+ return IRQ_HANDLED;
}
+#endif
-static void mvs_port_formed(struct asd_sas_phy *sas_phy)
+int mvs_task_abort(struct sas_task *task)
{
- struct sas_ha_struct *sas_ha = sas_phy->ha;
- struct mvs_info *mvi = sas_ha->lldd_ha;
- struct asd_sas_port *sas_port = sas_phy->port;
- struct mvs_phy *phy = sas_phy->lldd_phy;
- struct mvs_port *port = &mvi->port[sas_port->id];
+ int rc;
unsigned long flags;
+ struct mvs_info *mvi = task->dev->port->ha->lldd_ha;
+ struct pci_dev *pdev = mvi->pdev;
+ int tag;
- spin_lock_irqsave(&mvi->lock, flags);
- port->port_attached = 1;
- phy->port = port;
- port->taskfileset = MVS_ID_NOT_MAPPED;
- if (phy->phy_type & PORT_TYPE_SAS) {
- port->wide_port_phymap = sas_port->phy_mask;
- mvs_update_wideport(mvi, sas_phy->id);
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (task->task_state_flags & SAS_TASK_STATE_DONE) {
+ rc = TMF_RESP_FUNC_COMPLETE;
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ goto out_done;
}
- spin_unlock_irqrestore(&mvi->lock, flags);
-}
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
-static int mvs_I_T_nexus_reset(struct domain_device *dev)
-{
- return TMF_RESP_FUNC_FAILED;
+ switch (task->task_proto) {
+ case SAS_PROTOCOL_SMP:
+ dev_printk(KERN_DEBUG, &pdev->dev, "SMP Abort! \n");
+ break;
+ case SAS_PROTOCOL_SSP:
+ dev_printk(KERN_DEBUG, &pdev->dev, "SSP Abort! \n");
+ break;
+ case SAS_PROTOCOL_SATA:
+ case SAS_PROTOCOL_STP:
+ case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:{
+ dev_printk(KERN_DEBUG, &pdev->dev, "STP Abort! \n");
+#if _MV_DUMP
+ dev_printk(KERN_DEBUG, &pdev->dev, "Dump D2H FIS: \n");
+ mvs_hexdump(sizeof(struct host_to_dev_fis),
+ (void *)&task->ata_task.fis, 0);
+ dev_printk(KERN_DEBUG, &pdev->dev, "Dump ATAPI Cmd : \n");
+ mvs_hexdump(16, task->ata_task.atapi_packet, 0);
+#endif
+ spin_lock_irqsave(&task->task_state_lock, flags);
+ if (task->task_state_flags & SAS_TASK_NEED_DEV_RESET) {
+ /* TODO */
+ ;
+ }
+ spin_unlock_irqrestore(&task->task_state_lock, flags);
+ break;
+ }
+ default:
+ break;
+ }
+
+ if (mvs_find_tag(mvi, task, &tag)) {
+ spin_lock_irqsave(&mvi->lock, flags);
+ mvs_slot_task_free(mvi, task, &mvi->slot_info[tag], tag);
+ spin_unlock_irqrestore(&mvi->lock, flags);
+ }
+ if (!mvs_task_exec(task, 1, GFP_ATOMIC))
+ rc = TMF_RESP_FUNC_COMPLETE;
+ else
+ rc = TMF_RESP_FUNC_FAILED;
+out_done:
+ return rc;
}
-static int __devinit mvs_hw_init(struct mvs_info *mvi)
+int __devinit mvs_hw_init(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
int i;
return 0;
}
-static void __devinit mvs_print_info(struct mvs_info *mvi)
+void __devinit mvs_print_info(struct mvs_info *mvi)
{
struct pci_dev *pdev = mvi->pdev;
static int printed_version;
mvi->chip->n_phy, SAS_ADDR(mvi->sas_addr));
}
-static int __devinit mvs_pci_init(struct pci_dev *pdev,
- const struct pci_device_id *ent)
-{
- int rc;
- struct mvs_info *mvi;
- irq_handler_t irq_handler = mvs_interrupt;
-
- rc = pci_enable_device(pdev);
- if (rc)
- return rc;
-
- pci_set_master(pdev);
-
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc)
- goto err_out_disable;
-
- rc = pci_go_64(pdev);
- if (rc)
- goto err_out_regions;
-
- mvi = mvs_alloc(pdev, ent);
- if (!mvi) {
- rc = -ENOMEM;
- goto err_out_regions;
- }
-
- rc = mvs_hw_init(mvi);
- if (rc)
- goto err_out_mvi;
-
-#ifndef MVS_DISABLE_MSI
- if (!pci_enable_msi(pdev)) {
- u32 tmp;
- void __iomem *regs = mvi->regs;
- mvi->flags |= MVF_MSI;
- irq_handler = mvs_msi_interrupt;
- tmp = mr32(PCS);
- mw32(PCS, tmp | PCS_SELF_CLEAR);
- }
-#endif
-
- rc = request_irq(pdev->irq, irq_handler, IRQF_SHARED, DRV_NAME, mvi);
- if (rc)
- goto err_out_msi;
-
- rc = scsi_add_host(mvi->shost, &pdev->dev);
- if (rc)
- goto err_out_irq;
-
- rc = sas_register_ha(&mvi->sas);
- if (rc)
- goto err_out_shost;
-
- pci_set_drvdata(pdev, mvi);
-
- mvs_print_info(mvi);
-
- mvs_hba_interrupt_enable(mvi);
-
- scsi_scan_host(mvi->shost);
-
- return 0;
-
-err_out_shost:
- scsi_remove_host(mvi->shost);
-err_out_irq:
- free_irq(pdev->irq, mvi);
-err_out_msi:
- if (mvi->flags |= MVF_MSI)
- pci_disable_msi(pdev);
-err_out_mvi:
- mvs_free(mvi);
-err_out_regions:
- pci_release_regions(pdev);
-err_out_disable:
- pci_disable_device(pdev);
- return rc;
-}
-
-static void __devexit mvs_pci_remove(struct pci_dev *pdev)
-{
- struct mvs_info *mvi = pci_get_drvdata(pdev);
-
- pci_set_drvdata(pdev, NULL);
-
- if (mvi) {
- sas_unregister_ha(&mvi->sas);
- mvs_hba_interrupt_disable(mvi);
- sas_remove_host(mvi->shost);
- scsi_remove_host(mvi->shost);
-
- free_irq(pdev->irq, mvi);
- if (mvi->flags & MVF_MSI)
- pci_disable_msi(pdev);
- mvs_free(mvi);
- pci_release_regions(pdev);
- }
- pci_disable_device(pdev);
-}
-
-static struct sas_domain_function_template mvs_transport_ops = {
- .lldd_execute_task = mvs_task_exec,
- .lldd_control_phy = mvs_phy_control,
- .lldd_abort_task = mvs_task_abort,
- .lldd_port_formed = mvs_port_formed,
- .lldd_I_T_nexus_reset = mvs_I_T_nexus_reset,
-};
-
-static struct pci_device_id __devinitdata mvs_pci_table[] = {
- { PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
- { PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
- {
- .vendor = PCI_VENDOR_ID_MARVELL,
- .device = 0x6440,
- .subvendor = PCI_ANY_ID,
- .subdevice = 0x6480,
- .class = 0,
- .class_mask = 0,
- .driver_data = chip_6480,
- },
- { PCI_VDEVICE(MARVELL, 0x6440), chip_6440 },
- { PCI_VDEVICE(MARVELL, 0x6480), chip_6480 },
-
- { } /* terminate list */
-};
-
-static struct pci_driver mvs_pci_driver = {
- .name = DRV_NAME,
- .id_table = mvs_pci_table,
- .probe = mvs_pci_init,
- .remove = __devexit_p(mvs_pci_remove),
-};
-
-static int __init mvs_init(void)
-{
- int rc;
-
- mvs_stt = sas_domain_attach_transport(&mvs_transport_ops);
- if (!mvs_stt)
- return -ENOMEM;
-
- rc = pci_register_driver(&mvs_pci_driver);
- if (rc)
- goto err_out;
-
- return 0;
-
-err_out:
- sas_release_transport(mvs_stt);
- return rc;
-}
-
-static void __exit mvs_exit(void)
-{
- pci_unregister_driver(&mvs_pci_driver);
- sas_release_transport(mvs_stt);
-}
-
-module_init(mvs_init);
-module_exit(mvs_exit);
-
-MODULE_AUTHOR("Jeff Garzik <jgarzik@pobox.com>");
-MODULE_DESCRIPTION("Marvell 88SE6440 SAS/SATA controller driver");
-MODULE_VERSION(DRV_VERSION);
-MODULE_LICENSE("GPL");
-MODULE_DEVICE_TABLE(pci, mvs_pci_table);
projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commitdiff