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Merge branch 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata

Browse source 
Pull libata updates from Tejun Heo:
 - Write same support added
 - Minor ahci MSIX irq handling updates
 - Non-critical SCSI command translation fixes
 - Controller specific changes

* 'for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  ahci: qoriq: Revert "ahci: qoriq: Disable NCQ on ls2080a SoC"
  libata: remove <asm-generic/libata-portmap.h>
  libata: remove unused definitions from <asm/libata-portmap.h>
  pata_at91: Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
  ata: Replace BUG() with BUG_ON().
  ata: sata_mv: Replacing dma_pool_alloc and memset with a single call dma_pool_zalloc.
  libata: Some drives failing on SCT Write Same
  ahci: use pci_alloc_irq_vectors
  libata: SCT Write Same handle ATA_DFLAG_PIO
  libata: SCT Write Same / DSM Trim
  libata: Add support for SCT Write Same
  libata: Safely overwrite attached page in WRITE SAME xlat
  ahci: also use a per-port lock for the multi-MSIX case
  ARM: dts: STiH407-family: Add ports-implemented property in sata nodes
  ahci: st: Add ports-implemented property in support
  ahci: qoriq: enable snoopable sata read and write
  ahci: qoriq: adjust sata parameter
  libata-scsi: fix MODE SELECT translation for Control mode page
  libata-scsi: use u8 array to store mode page copy
This commit is contained in:
Linus Torvalds 2016-10-14 11:41:28 -07:00
commit f96ed26122
16 changed files with 362 additions and 239 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi
View file

@ -502,10 +502,11 @@
};
sata: sata@3200000 {
compatible = "fsl,ls1043a-ahci", "fsl,ls1021a-ahci";
compatible = "fsl,ls1043a-ahci";
reg = <0x0 0x3200000 0x0 0x10000>;
interrupts = <0 69 0x4>;
clocks = <&clockgen 4 0>;
dma-coherent;
};
msi1: msi-controller1@1571000 {

2
arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi
View file

@ -683,6 +683,7 @@
reg = <0x0 0x3200000 0x0 0x10000>;
interrupts = <0 133 0x4>; /* Level high type */
clocks = <&clockgen 4 3>;
dma-coherent;
};
sata1: sata@3210000 {
@ -691,6 +692,7 @@
reg = <0x0 0x3210000 0x0 0x10000>;
interrupts = <0 136 0x4>; /* Level high type */
clocks = <&clockgen 4 3>;
dma-coherent;
};
usb0: usb3@3100000 {

4
arch/ia64/include/asm/libata-portmap.h
View file

@ -1,12 +1,8 @@
#ifndef __ASM_IA64_LIBATA_PORTMAP_H
#define __ASM_IA64_LIBATA_PORTMAP_H
#define ATA_PRIMARY_CMD 0x1F0
#define ATA_PRIMARY_CTL 0x3F6
#define ATA_PRIMARY_IRQ(dev) isa_irq_to_vector(14)
#define ATA_SECONDARY_CMD 0x170
#define ATA_SECONDARY_CTL 0x376
#define ATA_SECONDARY_IRQ(dev) isa_irq_to_vector(15)
#endif

4
arch/powerpc/include/asm/libata-portmap.h
View file

@ -1,12 +1,8 @@
#ifndef __ASM_POWERPC_LIBATA_PORTMAP_H
#define __ASM_POWERPC_LIBATA_PORTMAP_H
#define ATA_PRIMARY_CMD 0x1F0
#define ATA_PRIMARY_CTL 0x3F6
#define ATA_PRIMARY_IRQ(dev) pci_get_legacy_ide_irq(dev, 0)
#define ATA_SECONDARY_CMD 0x170
#define ATA_SECONDARY_CTL 0x376
#define ATA_SECONDARY_IRQ(dev) pci_get_legacy_ide_irq(dev, 1)
#endif

151
drivers/ata/ahci.c
View file

@ -1400,142 +1400,56 @@ static irqreturn_t ahci_thunderx_irq_handler(int irq, void *dev_instance)
}
#endif
/*
* ahci_init_msix() - optionally enable per-port MSI-X otherwise defer
* to single msi.
*/
static int ahci_init_msix(struct pci_dev *pdev, unsigned int n_ports,
struct ahci_host_priv *hpriv, unsigned long flags)
static int ahci_get_irq_vector(struct ata_host *host, int port)
{
int nvec, i, rc;
/* Do not init MSI-X if MSI is disabled for the device */
if (hpriv->flags & AHCI_HFLAG_NO_MSI)
return -ENODEV;
nvec = pci_msix_vec_count(pdev);
if (nvec < 0)
return nvec;
/*
* Proper MSI-X implementations will have a vector per-port.
* Barring that, we prefer single-MSI over single-MSIX. If this
* check fails (not enough MSI-X vectors for all ports) we will
* be called again with the flag clear iff ahci_init_msi()
* fails.
*/
if (flags & AHCI_HFLAG_MULTI_MSIX) {
if (nvec < n_ports)
return -ENODEV;
nvec = n_ports;
} else if (nvec) {
nvec = 1;
} else {
/*
* Emit dev_err() since this was the non-legacy irq
* method of last resort.
*/
rc = -ENODEV;
goto fail;
}
for (i = 0; i < nvec; i++)
hpriv->msix[i].entry = i;
rc = pci_enable_msix_exact(pdev, hpriv->msix, nvec);
if (rc < 0)
goto fail;
if (nvec > 1)
hpriv->flags |= AHCI_HFLAG_MULTI_MSIX;
hpriv->irq = hpriv->msix[0].vector; /* for single msi-x */
return nvec;
fail:
dev_err(&pdev->dev,
"failed to enable MSI-X with error %d, # of vectors: %d\n",
rc, nvec);
return rc;
return pci_irq_vector(to_pci_dev(host->dev), port);
}
static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports,
struct ahci_host_priv *hpriv)
{
int rc, nvec;
int nvec;
if (hpriv->flags & AHCI_HFLAG_NO_MSI)
return -ENODEV;
nvec = pci_msi_vec_count(pdev);
if (nvec < 0)
return nvec;
/*
* If number of MSIs is less than number of ports then Sharing Last
* Message mode could be enforced. In this case assume that advantage
* of multipe MSIs is negated and use single MSI mode instead.
*/
if (nvec < n_ports)
goto single_msi;
nvec = pci_alloc_irq_vectors(pdev, n_ports, INT_MAX,
PCI_IRQ_MSIX | PCI_IRQ_MSI);
if (nvec > 0) {
if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) {
hpriv->get_irq_vector = ahci_get_irq_vector;
hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
return nvec;
}
rc = pci_enable_msi_exact(pdev, nvec);
if (rc == -ENOSPC)
goto single_msi;
if (rc < 0)
return rc;
/* fallback to single MSI mode if the controller enforced MRSM mode */
if (readl(hpriv->mmio + HOST_CTL) & HOST_MRSM) {
pci_disable_msi(pdev);
/*
* Fallback to single MSI mode if the controller enforced MRSM
* mode.
*/
printk(KERN_INFO "ahci: MRSM is on, fallback to single MSI\n");
goto single_msi;
pci_free_irq_vectors(pdev);
}
if (nvec > 1)
hpriv->flags |= AHCI_HFLAG_MULTI_MSI;
goto out;
single_msi:
nvec = 1;
rc = pci_enable_msi(pdev);
if (rc < 0)
return rc;
out:
hpriv->irq = pdev->irq;
return nvec;
}
static int ahci_init_interrupts(struct pci_dev *pdev, unsigned int n_ports,
struct ahci_host_priv *hpriv)
{
int nvec;
/*
* -ENOSPC indicated we don't have enough vectors. Don't bother trying
* a single vectors for any other error:
*/
if (nvec < 0 && nvec != -ENOSPC)
return nvec;
/*
* Try to enable per-port MSI-X. If the host is not capable
* fall back to single MSI before finally attempting single
* MSI-X.
* If the host is not capable of supporting per-port vectors, fall
* back to single MSI before finally attempting single MSI-X.
*/
nvec = ahci_init_msix(pdev, n_ports, hpriv, AHCI_HFLAG_MULTI_MSIX);
if (nvec >= 0)
nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI);
if (nvec == 1)
return nvec;
nvec = ahci_init_msi(pdev, n_ports, hpriv);
if (nvec >= 0)
return nvec;
/* try single-msix */
nvec = ahci_init_msix(pdev, n_ports, hpriv, 0);
if (nvec >= 0)
return nvec;
/* legacy intx interrupts */
pci_intx(pdev, 1);
hpriv->irq = pdev->irq;
return 0;
return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX);
}
static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
@ -1698,11 +1612,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!host)
return -ENOMEM;
host->private_data = hpriv;
hpriv->msix = devm_kzalloc(&pdev->dev,
sizeof(struct msix_entry) * n_ports, GFP_KERNEL);
if (!hpriv->msix)
return -ENOMEM;
ahci_init_interrupts(pdev, n_ports, hpriv);
if (ahci_init_msi(pdev, n_ports, hpriv) < 0) {
/* legacy intx interrupts */
pci_intx(pdev, 1);
}
hpriv->irq = pdev->irq;
if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
host->flags |= ATA_HOST_PARALLEL_SCAN;

24
drivers/ata/ahci.h
View file

@ -242,12 +242,10 @@ enum {
AHCI_HFLAG_NO_FBS = (1 << 18), /* no FBS */
#ifdef CONFIG_PCI_MSI
AHCI_HFLAG_MULTI_MSI = (1 << 20), /* multiple PCI MSIs */
AHCI_HFLAG_MULTI_MSIX = (1 << 21), /* per-port MSI-X */
AHCI_HFLAG_MULTI_MSI = (1 << 20), /* per-port MSI(-X) */
#else
/* compile out MSI infrastructure */
AHCI_HFLAG_MULTI_MSI = 0,
AHCI_HFLAG_MULTI_MSIX = 0,
#endif
AHCI_HFLAG_WAKE_BEFORE_STOP = (1 << 22), /* wake before DMA stop */
@ -351,7 +349,6 @@ struct ahci_host_priv {
* the PHY position in this array.
*/
struct phy **phys;
struct msix_entry *msix; /* Optional MSI-X support */
unsigned nports; /* Number of ports */
void *plat_data; /* Other platform data */
unsigned int irq; /* interrupt line */
@ -362,22 +359,11 @@ struct ahci_host_priv {
*/
void (*start_engine)(struct ata_port *ap);
irqreturn_t (*irq_handler)(int irq, void *dev_instance);
};
#ifdef CONFIG_PCI_MSI
static inline int ahci_irq_vector(struct ahci_host_priv *hpriv, int port)
{
if (hpriv->flags & AHCI_HFLAG_MULTI_MSIX)
return hpriv->msix[port].vector;
else
return hpriv->irq + port;
}
#else
static inline int ahci_irq_vector(struct ahci_host_priv *hpriv, int port)
{
return hpriv->irq;
}
#endif
/* only required for per-port MSI(-X) support */
int (*get_irq_vector)(struct ata_host *host,
int port);
};
extern int ahci_ignore_sss;

20
drivers/ata/ahci_qoriq.c
View file

@ -30,24 +30,23 @@
#define PORT_PHY3 0xB0
#define PORT_PHY4 0xB4
#define PORT_PHY5 0xB8
#define PORT_AXICC 0xBC
#define PORT_TRANS 0xC8
/* port register default value */
#define AHCI_PORT_PHY_1_CFG 0xa003fffe
#define AHCI_PORT_TRANS_CFG 0x08000029
#define AHCI_PORT_AXICC_CFG 0x3fffffff
/* for ls1021a */
#define LS1021A_PORT_PHY2 0x28183414
#define LS1021A_PORT_PHY3 0x0e080e06
#define LS1021A_PORT_PHY4 0x064a080b
#define LS1021A_PORT_PHY5 0x2aa86470
#define LS1021A_AXICC_ADDR 0xC0
#define SATA_ECC_DISABLE 0x00020000
/* for ls1043a */
#define LS1043A_PORT_PHY2 0x28184d1f
#define LS1043A_PORT_PHY3 0x0e081509
enum ahci_qoriq_type {
AHCI_LS1021A,
AHCI_LS1043A,
@ -137,7 +136,7 @@ static struct ata_port_operations ahci_qoriq_ops = {
.hardreset = ahci_qoriq_hardreset,
};
static struct ata_port_info ahci_qoriq_port_info = {
static const struct ata_port_info ahci_qoriq_port_info = {
.flags = AHCI_FLAG_COMMON | ATA_FLAG_NCQ,
.pio_mask = ATA_PIO4,
.udma_mask = ATA_UDMA6,
@ -162,18 +161,19 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv)
writel(LS1021A_PORT_PHY4, reg_base + PORT_PHY4);
writel(LS1021A_PORT_PHY5, reg_base + PORT_PHY5);
writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS);
writel(AHCI_PORT_AXICC_CFG, reg_base + LS1021A_AXICC_ADDR);
break;
case AHCI_LS1043A:
writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
writel(LS1043A_PORT_PHY2, reg_base + PORT_PHY2);
writel(LS1043A_PORT_PHY3, reg_base + PORT_PHY3);
writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS);
writel(AHCI_PORT_AXICC_CFG, reg_base + PORT_AXICC);
break;
case AHCI_LS2080A:
writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1);
writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS);
writel(AHCI_PORT_AXICC_CFG, reg_base + PORT_AXICC);
break;
}
@ -221,12 +221,6 @@ static int ahci_qoriq_probe(struct platform_device *pdev)
if (rc)
goto disable_resources;
/* Workaround for ls2080a */
if (qoriq_priv->type == AHCI_LS2080A) {
hpriv->flags |= AHCI_HFLAG_NO_NCQ;
ahci_qoriq_port_info.flags &= ~ATA_FLAG_NCQ;
}
rc = ahci_platform_init_host(pdev, hpriv, &ahci_qoriq_port_info,
&ahci_qoriq_sht);
if (rc)

4
drivers/ata/ahci_st.c
View file

@ -147,6 +147,7 @@ static struct scsi_host_template ahci_platform_sht = {
static int st_ahci_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct st_ahci_drv_data *drv_data;
struct ahci_host_priv *hpriv;
int err;
@ -170,6 +171,9 @@ static int st_ahci_probe(struct platform_device *pdev)
st_ahci_configure_oob(hpriv->mmio);
of_property_read_u32(dev->of_node,
"ports-implemented", &hpriv->force_port_map);
err = ahci_platform_init_host(pdev, hpriv, &st_ahci_port_info,
&ahci_platform_sht);
if (err) {

9
drivers/ata/libahci.c
View file

@ -2520,7 +2520,7 @@ static int ahci_host_activate_multi_irqs(struct ata_host *host,
*/
for (i = 0; i < host->n_ports; i++) {
struct ahci_port_priv *pp = host->ports[i]->private_data;
int irq = ahci_irq_vector(hpriv, i);
int irq = hpriv->get_irq_vector(host, i);
/* Do not receive interrupts sent by dummy ports */
if (!pp) {
@ -2556,10 +2556,15 @@ int ahci_host_activate(struct ata_host *host, struct scsi_host_template *sht)
int irq = hpriv->irq;
int rc;
if (hpriv->flags & (AHCI_HFLAG_MULTI_MSI | AHCI_HFLAG_MULTI_MSIX)) {
if (hpriv->flags & AHCI_HFLAG_MULTI_MSI) {
if (hpriv->irq_handler)
dev_warn(host->dev,
"both AHCI_HFLAG_MULTI_MSI flag set and custom irq handler implemented\n");
if (!hpriv->get_irq_vector) {
dev_err(host->dev,
"AHCI_HFLAG_MULTI_MSI requires ->get_irq_vector!\n");
return -EIO;
}
rc = ahci_host_activate_multi_irqs(host, sht);
} else {

288
drivers/ata/libata-scsi.c
View file

@ -1159,8 +1159,6 @@ static void ata_scsi_sdev_config(struct scsi_device *sdev)
{
sdev->use_10_for_rw = 1;
sdev->use_10_for_ms = 1;
sdev->no_report_opcodes = 1;
sdev->no_write_same = 1;
/* Schedule policy is determined by ->qc_defer() callback and
* it needs to see every deferred qc. Set dev_blocked to 1 to
@ -3282,18 +3280,125 @@ static unsigned int ata_scsi_pass_thru(struct ata_queued_cmd *qc)
return 1;
}
/**
* ata_format_dsm_trim_descr() - SATL Write Same to DSM Trim
* @cmd: SCSI command being translated
* @trmax: Maximum number of entries that will fit in sector_size bytes.
* @sector: Starting sector
* @count: Total Range of request in logical sectors
*
* Rewrite the WRITE SAME descriptor to be a DSM TRIM little-endian formatted
* descriptor.
*
* Upto 64 entries of the format:
* 63:48 Range Length
* 47:0 LBA
*
* Range Length of 0 is ignored.
* LBA's should be sorted order and not overlap.
*
* NOTE: this is the same format as ADD LBA(S) TO NV CACHE PINNED SET
*
* Return: Number of bytes copied into sglist.
*/
static size_t ata_format_dsm_trim_descr(struct scsi_cmnd *cmd, u32 trmax,
u64 sector, u32 count)
{
struct scsi_device *sdp = cmd->device;
size_t len = sdp->sector_size;
size_t r;
__le64 *buf;
u32 i = 0;
unsigned long flags;
WARN_ON(len > ATA_SCSI_RBUF_SIZE);
if (len > ATA_SCSI_RBUF_SIZE)
len = ATA_SCSI_RBUF_SIZE;
spin_lock_irqsave(&ata_scsi_rbuf_lock, flags);
buf = ((void *)ata_scsi_rbuf);
memset(buf, 0, len);
while (i < trmax) {
u64 entry = sector |
((u64)(count > 0xffff ? 0xffff : count) << 48);
buf[i++] = __cpu_to_le64(entry);
if (count <= 0xffff)
break;
count -= 0xffff;
sector += 0xffff;
}
r = sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd), buf, len);
spin_unlock_irqrestore(&ata_scsi_rbuf_lock, flags);
return r;
}
/**
* ata_format_dsm_trim_descr() - SATL Write Same to ATA SCT Write Same
* @cmd: SCSI command being translated
* @lba: Starting sector
* @num: Number of sectors to be zero'd.
*
* Rewrite the WRITE SAME payload to be an SCT Write Same formatted
* descriptor.
* NOTE: Writes a pattern (0's) in the foreground.
*
* Return: Number of bytes copied into sglist.
*/
static size_t ata_format_sct_write_same(struct scsi_cmnd *cmd, u64 lba, u64 num)
{
struct scsi_device *sdp = cmd->device;
size_t len = sdp->sector_size;
size_t r;
u16 *buf;
unsigned long flags;
spin_lock_irqsave(&ata_scsi_rbuf_lock, flags);
buf = ((void *)ata_scsi_rbuf);
put_unaligned_le16(0x0002, &buf[0]); /* SCT_ACT_WRITE_SAME */
put_unaligned_le16(0x0101, &buf[1]); /* WRITE PTRN FG */
put_unaligned_le64(lba, &buf[2]);
put_unaligned_le64(num, &buf[6]);
put_unaligned_le32(0u, &buf[10]); /* pattern */
WARN_ON(len > ATA_SCSI_RBUF_SIZE);
if (len > ATA_SCSI_RBUF_SIZE)
len = ATA_SCSI_RBUF_SIZE;
r = sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd), buf, len);
spin_unlock_irqrestore(&ata_scsi_rbuf_lock, flags);
return r;
}
/**
* ata_scsi_write_same_xlat() - SATL Write Same to ATA SCT Write Same
* @qc: Command to be translated
*
* Translate a SCSI WRITE SAME command to be either a DSM TRIM command or
* an SCT Write Same command.
* Based on WRITE SAME has the UNMAP flag
* When set translate to DSM TRIM
* When clear translate to SCT Write Same
*/
static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
{
struct ata_taskfile *tf = &qc->tf;
struct scsi_cmnd *scmd = qc->scsicmd;
struct scsi_device *sdp = scmd->device;
size_t len = sdp->sector_size;
struct ata_device *dev = qc->dev;
const u8 *cdb = scmd->cmnd;
u64 block;
u32 n_block;
const u32 trmax = len >> 3;
u32 size;
void *buf;
u16 fp;
u8 bp = 0xff;
u8 unmap = cdb[1] & 0x8;
/* we may not issue DMA commands if no DMA mode is set */
if (unlikely(!dev->dma_mode))
@ -3305,11 +3410,26 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
}
scsi_16_lba_len(cdb, &block, &n_block);
/* for now we only support WRITE SAME with the unmap bit set */
if (unlikely(!(cdb[1] & 0x8))) {
fp = 1;
bp = 3;
goto invalid_fld;
if (unmap) {
/* If trim is not enabled the cmd is invalid. */
if ((dev->horkage & ATA_HORKAGE_NOTRIM) ||
!ata_id_has_trim(dev->id)) {
fp = 1;
bp = 3;
goto invalid_fld;
}
/* If the request is too large the cmd is invalid */
if (n_block > 0xffff * trmax) {
fp = 2;
goto invalid_fld;
}
} else {
/* If write same is not available the cmd is invalid */
if (!ata_id_sct_write_same(dev->id)) {
fp = 1;
bp = 3;
goto invalid_fld;
}
}
/*
@ -3319,32 +3439,54 @@ static unsigned int ata_scsi_write_same_xlat(struct ata_queued_cmd *qc)
if (!scsi_sg_count(scmd))
goto invalid_param_len;
buf = page_address(sg_page(scsi_sglist(scmd)));
/*
* size must match sector size in bytes
* For DATA SET MANAGEMENT TRIM in ACS-2 nsect (aka count)
* is defined as number of 512 byte blocks to be transferred.
*/
if (unmap) {
size = ata_format_dsm_trim_descr(scmd, trmax, block, n_block);
if (size != len)
goto invalid_param_len;
if (n_block <= 65535 * ATA_MAX_TRIM_RNUM) {
size = ata_set_lba_range_entries(buf, ATA_MAX_TRIM_RNUM, block, n_block);
if (ata_ncq_enabled(dev) && ata_fpdma_dsm_supported(dev)) {
/* Newer devices support queued TRIM commands */
tf->protocol = ATA_PROT_NCQ;
tf->command = ATA_CMD_FPDMA_SEND;
tf->hob_nsect = ATA_SUBCMD_FPDMA_SEND_DSM & 0x1f;
tf->nsect = qc->tag << 3;
tf->hob_feature = (size / 512) >> 8;
tf->feature = size / 512;
tf->auxiliary = 1;
} else {
tf->protocol = ATA_PROT_DMA;
tf->hob_feature = 0;
tf->feature = ATA_DSM_TRIM;
tf->hob_nsect = (size / 512) >> 8;
tf->nsect = size / 512;
tf->command = ATA_CMD_DSM;
}
} else {
fp = 2;
goto invalid_fld;
}
size = ata_format_sct_write_same(scmd, block, n_block);
if (size != len)
goto invalid_param_len;
if (ata_ncq_enabled(dev) && ata_fpdma_dsm_supported(dev)) {
/* Newer devices support queued TRIM commands */
tf->protocol = ATA_PROT_NCQ;
tf->command = ATA_CMD_FPDMA_SEND;
tf->hob_nsect = ATA_SUBCMD_FPDMA_SEND_DSM & 0x1f;
tf->nsect = qc->tag << 3;
tf->hob_feature = (size / 512) >> 8;
tf->feature = size / 512;
tf->auxiliary = 1;
} else {
tf->protocol = ATA_PROT_DMA;
tf->hob_feature = 0;
tf->feature = ATA_DSM_TRIM;
tf->hob_nsect = (size / 512) >> 8;
tf->nsect = size / 512;
tf->command = ATA_CMD_DSM;
tf->feature = 0;
tf->hob_nsect = 0;
tf->nsect = 1;
tf->lbah = 0;
tf->lbam = 0;
tf->lbal = ATA_CMD_STANDBYNOW1;
tf->hob_lbah = 0;
tf->hob_lbam = 0;
tf->hob_lbal = 0;
tf->device = ATA_CMD_STANDBYNOW1;
tf->protocol = ATA_PROT_DMA;
tf->command = ATA_CMD_WRITE_LOG_DMA_EXT;
if (unlikely(dev->flags & ATA_DFLAG_PIO))
tf->command = ATA_CMD_WRITE_LOG_EXT;
}
tf->flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE | ATA_TFLAG_LBA48 |
@ -3367,6 +3509,76 @@ invalid_opcode:
return 1;
}
/**
* ata_scsiop_maint_in - Simulate a subset of MAINTENANCE_IN
* @args: device MAINTENANCE_IN data / SCSI command of interest.
* @rbuf: Response buffer, to which simulated SCSI cmd output is sent.
*
* Yields a subset to satisfy scsi_report_opcode()
*
* LOCKING:
* spin_lock_irqsave(host lock)
*/
static unsigned int ata_scsiop_maint_in(struct ata_scsi_args *args, u8 *rbuf)
{
struct ata_device *dev = args->dev;
u8 *cdb = args->cmd->cmnd;
u8 supported = 0;
unsigned int err = 0;
if (cdb[2] != 1) {
ata_dev_warn(dev, "invalid command format %d\n", cdb[2]);
err = 2;
goto out;
}
switch (cdb[3]) {
case INQUIRY:
case MODE_SENSE:
case MODE_SENSE_10:
case READ_CAPACITY:
case SERVICE_ACTION_IN_16:
case REPORT_LUNS:
case REQUEST_SENSE:
case SYNCHRONIZE_CACHE:
case REZERO_UNIT:
case SEEK_6:
case SEEK_10:
case TEST_UNIT_READY:
case SEND_DIAGNOSTIC:
case MAINTENANCE_IN:
case READ_6:
case READ_10:
case READ_16:
case WRITE_6:
case WRITE_10:
case WRITE_16:
case ATA_12:
case ATA_16:
case VERIFY:
case VERIFY_16:
case MODE_SELECT:
case MODE_SELECT_10:
case START_STOP:
supported = 3;
break;
case WRITE_SAME_16:
if (!ata_id_sct_write_same(dev->id))
break;
/* fallthrough: if SCT ... only enable for ZBC */
case ZBC_IN:
case ZBC_OUT:
if (ata_id_zoned_cap(dev->id) ||
dev->class == ATA_DEV_ZAC)
supported = 3;
break;
default:
break;
}
out:
rbuf[1] = supported; /* supported */
return err;
}
/**
* ata_scsi_report_zones_complete - convert ATA output
* @qc: command structure returning the data
@ -3610,7 +3822,7 @@ static int ata_mselect_caching(struct ata_queued_cmd *qc,
{
struct ata_taskfile *tf = &qc->tf;
struct ata_device *dev = qc->dev;
char mpage[CACHE_MPAGE_LEN];
u8 mpage[CACHE_MPAGE_LEN];
u8 wce;
int i;
@ -3666,7 +3878,7 @@ static int ata_mselect_control(struct ata_queued_cmd *qc,
const u8 *buf, int len, u16 *fp)
{
struct ata_device *dev = qc->dev;
char mpage[CONTROL_MPAGE_LEN];
u8 mpage[CONTROL_MPAGE_LEN];
u8 d_sense;
int i;
@ -3701,8 +3913,6 @@ static int ata_mselect_control(struct ata_queued_cmd *qc,
dev->flags |= ATA_DFLAG_D_SENSE;
else
dev->flags &= ~ATA_DFLAG_D_SENSE;
qc->scsicmd->result = SAM_STAT_GOOD;
qc->scsicmd->scsi_done(qc->scsicmd);
return 0;
}
@ -3829,6 +4039,8 @@ static unsigned int ata_scsi_mode_select_xlat(struct ata_queued_cmd *qc)
if (ata_mselect_control(qc, p, pg_len, &fp) < 0) {
fp += hdr_len + bd_len;
goto invalid_param;
} else {
goto skip; /* No ATA command to send */
}
break;
default: /* invalid page code */
@ -4147,6 +4359,13 @@ void ata_scsi_simulate(struct ata_device *dev, struct scsi_cmnd *cmd)
ata_scsi_invalid_field(dev, cmd, 1);
break;
case MAINTENANCE_IN:
if (scsicmd[1] == MI_REPORT_SUPPORTED_OPERATION_CODES)
ata_scsi_rbuf_fill(&args, ata_scsiop_maint_in);
else
ata_scsi_invalid_field(dev, cmd, 1);
break;
/* all other commands */
default:
ata_scsi_set_sense(dev, cmd, ILLEGAL_REQUEST, 0x20, 0x0);
@ -4179,7 +4398,6 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)
shost->max_lun = 1;
shost->max_channel = 1;
shost->max_cmd_len = 16;
shost->no_write_same = 1;
/* Schedule policy is determined by ->qc_defer()
* callback and it needs to see every deferred qc.

4
drivers/ata/pata_at91.c
View file

@ -347,10 +347,8 @@ static int at91sam9_smc_fields_init(struct device *dev)
field.reg = AT91SAM9_SMC_MODE(AT91SAM9_SMC_GENERIC);
fields.mode = devm_regmap_field_alloc(dev, smc, field);
if (IS_ERR(fields.mode))
return PTR_ERR(fields.mode);
return 0;
return PTR_ERR_OR_ZERO(fields.mode);
}
static int pata_at91_probe(struct platform_device *pdev)

3
drivers/ata/pata_octeon_cf.c
View file

@ -152,8 +152,7 @@ static void octeon_cf_set_piomode(struct ata_port *ap, struct ata_device *dev)
div = 8;
T = (int)((1000000000000LL * div) / octeon_get_io_clock_rate());
if (ata_timing_compute(dev, dev->pio_mode, &timing, T, T))
BUG();
BUG_ON(ata_timing_compute(dev, dev->pio_mode, &timing, T, T));
t1 = timing.setup;
if (t1)

6
drivers/ata/sata_mv.c
View file

@ -1727,15 +1727,13 @@ static int mv_port_start(struct ata_port *ap)
return -ENOMEM;
ap->private_data = pp;
pp->crqb = dma_pool_alloc(hpriv->crqb_pool, GFP_KERNEL, &pp->crqb_dma);
pp->crqb = dma_pool_zalloc(hpriv->crqb_pool, GFP_KERNEL, &pp->crqb_dma);
if (!pp->crqb)
return -ENOMEM;
memset(pp->crqb, 0, MV_CRQB_Q_SZ);
pp->crpb = dma_pool_alloc(hpriv->crpb_pool, GFP_KERNEL, &pp->crpb_dma);
pp->crpb = dma_pool_zalloc(hpriv->crpb_pool, GFP_KERNEL, &pp->crpb_dma);
if (!pp->crpb)
goto out_port_free_dma_mem;
memset(pp->crpb, 0, MV_CRPB_Q_SZ);
/* 6041/6081 Rev. "C0" (and newer) are okay with async notify */
if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0)

7
include/asm-generic/libata-portmap.h
View file

@ -1,7 +0,0 @@
#ifndef __ASM_GENERIC_LIBATA_PORTMAP_H
#define __ASM_GENERIC_LIBATA_PORTMAP_H
#define ATA_PRIMARY_IRQ(dev) 14
#define ATA_SECONDARY_IRQ(dev) 15
#endif

69
include/linux/ata.h
View file

@ -105,6 +105,7 @@ enum {
ATA_ID_CFA_KEY_MGMT = 162,
ATA_ID_CFA_MODES = 163,
ATA_ID_DATA_SET_MGMT = 169,
ATA_ID_SCT_CMD_XPORT = 206,
ATA_ID_ROT_SPEED = 217,
ATA_ID_PIO4 = (1 << 1),
@ -788,6 +789,48 @@ static inline bool ata_id_sense_reporting_enabled(const u16 *id)
return id[ATA_ID_COMMAND_SET_4] & (1 << 6);
}
/**
*
* Word: 206 - SCT Command Transport
* 15:12 - Vendor Specific
* 11:6 - Reserved
* 5 - SCT Command Transport Data Tables supported
* 4 - SCT Command Transport Features Control supported
* 3 - SCT Command Transport Error Recovery Control supported
* 2 - SCT Command Transport Write Same supported
* 1 - SCT Command Transport Long Sector Access supported
* 0 - SCT Command Transport supported
*/
static inline bool ata_id_sct_data_tables(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 5) ? true : false;
}
static inline bool ata_id_sct_features_ctrl(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 4) ? true : false;
}
static inline bool ata_id_sct_error_recovery_ctrl(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 3) ? true : false;
}
static inline bool ata_id_sct_write_same(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 2) ? true : false;
}
static inline bool ata_id_sct_long_sector_access(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 1) ? true : false;
}
static inline bool ata_id_sct_supported(const u16 *id)
{
return id[ATA_ID_SCT_CMD_XPORT] & (1 << 0) ? true : false;
}
/**
* ata_id_major_version - get ATA level of drive
* @id: Identify data
@ -1071,32 +1114,6 @@ static inline void ata_id_to_hd_driveid(u16 *id)
#endif
}
/*
* Write LBA Range Entries to the buffer that will cover the extent from
* sector to sector + count. This is used for TRIM and for ADD LBA(S)
* TO NV CACHE PINNED SET.
*/
static inline unsigned ata_set_lba_range_entries(void *_buffer,
unsigned num, u64 sector, unsigned long count)
{
__le64 *buffer = _buffer;
unsigned i = 0, used_bytes;
while (i < num) {
u64 entry = sector |
((u64)(count > 0xffff ? 0xffff : count) << 48);
buffer[i++] = __cpu_to_le64(entry);
if (count <= 0xffff)
break;
count -= 0xffff;
sector += 0xffff;
}
used_bytes = ALIGN(i * 8, 512);
memset(buffer + i, 0, used_bytes - i * 8);
return used_bytes;
}
static inline bool ata_ok(u8 status)
{
return ((status & (ATA_BUSY | ATA_DRDY | ATA_DF | ATA_DRQ | ATA_ERR))

3
include/linux/libata.h
View file

@ -46,7 +46,8 @@
#ifdef CONFIG_ATA_NONSTANDARD
#include <asm/libata-portmap.h>
#else
#include <asm-generic/libata-portmap.h>
#define ATA_PRIMARY_IRQ(dev) 14
#define ATA_SECONDARY_IRQ(dev) 15
#endif
/*