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-rw-r--r--drivers/ata/ahci.c57
-rw-r--r--drivers/ata/ahci.h1
-rw-r--r--drivers/ata/ahci_xgene.c7
-rw-r--r--drivers/ata/libata-eh.c9
-rw-r--r--drivers/ata/libata-scsi.c11
5 files changed, 53 insertions, 32 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index e1c24bbacf64..7a7f88b3fa2b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -689,40 +689,50 @@ MODULE_PARM_DESC(mask_port_map,
"where <pci_dev> is the PCI ID of an AHCI controller in the "
"form \"domain:bus:dev.func\"");
-static void ahci_apply_port_map_mask(struct device *dev,
- struct ahci_host_priv *hpriv, char *mask_s)
+static char *ahci_mask_port_ext;
+module_param_named(mask_port_ext, ahci_mask_port_ext, charp, 0444);
+MODULE_PARM_DESC(mask_port_ext,
+ "32-bits mask to ignore the external/hotplug capability of ports. "
+ "Valid values are: "
+ "\"<mask>\" to apply the same mask to all AHCI controller "
+ "devices, and \"<pci_dev>=<mask>,<pci_dev>=<mask>,...\" to "
+ "specify different masks for the controllers specified, "
+ "where <pci_dev> is the PCI ID of an AHCI controller in the "
+ "form \"domain:bus:dev.func\"");
+
+static u32 ahci_port_mask(struct device *dev, char *mask_s)
{
unsigned int mask;
if (kstrtouint(mask_s, 0, &mask)) {
dev_err(dev, "Invalid port map mask\n");
- return;
+ return 0;
}
- hpriv->mask_port_map = mask;
+ return mask;
}
-static void ahci_get_port_map_mask(struct device *dev,
- struct ahci_host_priv *hpriv)
+static u32 ahci_get_port_mask(struct device *dev, char *mask_p)
{
char *param, *end, *str, *mask_s;
char *name;
+ u32 mask = 0;
- if (!strlen(ahci_mask_port_map))
- return;
+ if (!mask_p || !strlen(mask_p))
+ return 0;
- str = kstrdup(ahci_mask_port_map, GFP_KERNEL);
+ str = kstrdup(mask_p, GFP_KERNEL);
if (!str)
- return;
+ return 0;
/* Handle single mask case */
if (!strchr(str, '=')) {
- ahci_apply_port_map_mask(dev, hpriv, str);
+ mask = ahci_port_mask(dev, str);
goto free;
}
/*
- * Mask list case: parse the parameter to apply the mask only if
+ * Mask list case: parse the parameter to get the mask only if
* the device name matches.
*/
param = str;
@@ -752,11 +762,13 @@ static void ahci_get_port_map_mask(struct device *dev,
param++;
}
- ahci_apply_port_map_mask(dev, hpriv, mask_s);
+ mask = ahci_port_mask(dev, mask_s);
}
free:
kfree(str);
+
+ return mask;
}
static void ahci_pci_save_initial_config(struct pci_dev *pdev,
@@ -782,8 +794,10 @@ static void ahci_pci_save_initial_config(struct pci_dev *pdev,
}
/* Handle port map masks passed as module parameter. */
- if (ahci_mask_port_map)
- ahci_get_port_map_mask(&pdev->dev, hpriv);
+ hpriv->mask_port_map =
+ ahci_get_port_mask(&pdev->dev, ahci_mask_port_map);
+ hpriv->mask_port_ext =
+ ahci_get_port_mask(&pdev->dev, ahci_mask_port_ext);
ahci_save_initial_config(&pdev->dev, hpriv);
}
@@ -1757,11 +1771,20 @@ static void ahci_mark_external_port(struct ata_port *ap)
void __iomem *port_mmio = ahci_port_base(ap);
u32 tmp;
- /* mark external ports (hotplug-capable, eSATA) */
+ /*
+ * Mark external ports (hotplug-capable, eSATA), unless we were asked to
+ * ignore this feature.
+ */
tmp = readl(port_mmio + PORT_CMD);
if (((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS)) ||
- (tmp & PORT_CMD_HPCP))
+ (tmp & PORT_CMD_HPCP)) {
+ if (hpriv->mask_port_ext & (1U << ap->port_no)) {
+ ata_port_info(ap,
+ "Ignoring external/hotplug capability\n");
+ return;
+ }
ap->pflags |= ATA_PFLAG_EXTERNAL;
+ }
}
static void ahci_update_initial_lpm_policy(struct ata_port *ap)
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 2c10c8f440d1..293b7fb216b5 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -330,6 +330,7 @@ struct ahci_host_priv {
/* Input fields */
unsigned int flags; /* AHCI_HFLAG_* */
u32 mask_port_map; /* Mask of valid ports */
+ u32 mask_port_ext; /* Mask of ports ext capability */
void __iomem * mmio; /* bus-independent mem map */
u32 cap; /* cap to use */
diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 5d5a51a77f5d..6b8844646fcd 100644
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -450,7 +450,6 @@ static int xgene_ahci_pmp_softreset(struct ata_link *link, unsigned int *class,
{
int pmp = sata_srst_pmp(link);
struct ata_port *ap = link->ap;
- u32 rc;
void __iomem *port_mmio = ahci_port_base(ap);
u32 port_fbs;
@@ -463,9 +462,7 @@ static int xgene_ahci_pmp_softreset(struct ata_link *link, unsigned int *class,
port_fbs |= pmp << PORT_FBS_DEV_OFFSET;
writel(port_fbs, port_mmio + PORT_FBS);
- rc = ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready);
-
- return rc;
+ return ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready);
}
/**
@@ -500,7 +497,7 @@ static int xgene_ahci_softreset(struct ata_link *link, unsigned int *class,
u32 port_fbs;
u32 port_fbs_save;
u32 retry = 1;
- u32 rc;
+ int rc;
port_fbs_save = readl(port_mmio + PORT_FBS);
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 2946ae6d4b2c..2586e77ebf45 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2075,7 +2075,7 @@ out:
* Check if a link is established. This is a relaxed version of
* ata_phys_link_online() which accounts for the fact that this is potentially
* called after changing the link power management policy, which may not be
- * reflected immediately in the SSTAUS register (e.g., we may still be seeing
+ * reflected immediately in the SStatus register (e.g., we may still be seeing
* the PHY in partial, slumber or devsleep Partial power management state.
* So check that:
* - A device is still present, that is, DET is 1h (Device presence detected
@@ -2089,8 +2089,13 @@ static bool ata_eh_link_established(struct ata_link *link)
u32 sstatus;
u8 det, ipm;
+ /*
+ * For old IDE/PATA adapters that do not have a valid scr_read method,
+ * or if reading the SStatus register fails, assume that the device is
+ * present. Device probe will determine if that is really the case.
+ */
if (sata_scr_read(link, SCR_STATUS, &sstatus))
- return false;
+ return true;
det = sstatus & 0x0f;
ipm = (sstatus >> 8) & 0x0f;
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 57f674f51b0c..2ded5e476d6e 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3904,21 +3904,16 @@ static int ata_mselect_control_ata_feature(struct ata_queued_cmd *qc,
/* Check cdl_ctrl */
switch (buf[0] & 0x03) {
case 0:
- /* Disable CDL if it is enabled */
- if (!(dev->flags & ATA_DFLAG_CDL_ENABLED))
- return 0;
+ /* Disable CDL */
ata_dev_dbg(dev, "Disabling CDL\n");
cdl_action = 0;
dev->flags &= ~ATA_DFLAG_CDL_ENABLED;
break;
case 0x02:
/*
- * Enable CDL if not already enabled. Since this is mutually
- * exclusive with NCQ priority, allow this only if NCQ priority
- * is disabled.
+ * Enable CDL. Since CDL is mutually exclusive with NCQ
+ * priority, allow this only if NCQ priority is disabled.
*/
- if (dev->flags & ATA_DFLAG_CDL_ENABLED)
- return 0;
if (dev->flags & ATA_DFLAG_NCQ_PRIO_ENABLED) {
ata_dev_err(dev,
"NCQ priority must be disabled to enable CDL\n");
generated by cgit (git 2.34.1) at 2025-09-02 12:38:08 +0000