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authorJeff Garzik <jeff@garzik.org>2012-07-25 15:58:48 -0400
committerJeff Garzik <jgarzik@redhat.com>2012-07-25 15:58:48 -0400
commit8407884dd9164ec18ed2afc00f56b87e36c51fcf (patch)
treeb6ea42c231d7d39f454de28a068d78ce11709770 /include/scsi
parentdc7f71f486f4f5fa96f6dcf86833da020cde8a11 (diff)
parentbdc0077af574800d24318b6945cf2344e8dbb050 (diff)
downloadlinux-linaro-stable-8407884dd9164ec18ed2afc00f56b87e36c51fcf.tar.gz
Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream
Two bits were appended to the end of the bitfield list in struct scsi_device. Resolve that conflict by including both bits. Conflicts: include/scsi/scsi_device.h
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/libfc.h24
-rw-r--r--include/scsi/libsas.h36
-rw-r--r--include/scsi/sas_ata.h5
-rw-r--r--include/scsi/scsi.h2
-rw-r--r--include/scsi/scsi_cmnd.h8
-rw-r--r--include/scsi/scsi_device.h5
-rw-r--r--include/scsi/scsi_dh.h6
-rw-r--r--include/scsi/scsi_scan.h11
-rw-r--r--include/scsi/scsi_transport_fc.h12
9 files changed, 78 insertions, 31 deletions
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 8f9dfba3fcf0..399162b50a8d 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -224,7 +224,7 @@ struct fc_rport_priv {
};
/**
- * struct fcoe_dev_stats - fcoe stats structure
+ * struct fc_stats - fc stats structure
* @SecondsSinceLastReset: Seconds since the last reset
* @TxFrames: Number of transmitted frames
* @TxWords: Number of transmitted words
@@ -232,6 +232,9 @@ struct fc_rport_priv {
* @RxWords: Number of received words
* @ErrorFrames: Number of received error frames
* @DumpedFrames: Number of dumped frames
+ * @FcpPktAllocFails: Number of fcp packet allocation failures
+ * @FcpPktAborts: Number of fcp packet aborts
+ * @FcpFrameAllocFails: Number of fcp frame allocation failures
* @LinkFailureCount: Number of link failures
* @LossOfSignalCount: Number for signal losses
* @InvalidTxWordCount: Number of invalid transmitted words
@@ -244,7 +247,7 @@ struct fc_rport_priv {
* @VLinkFailureCount: Number of virtual link failures
* @MissDiscAdvCount: Number of missing FIP discovery advertisement
*/
-struct fcoe_dev_stats {
+struct fc_stats {
u64 SecondsSinceLastReset;
u64 TxFrames;
u64 TxWords;
@@ -252,6 +255,9 @@ struct fcoe_dev_stats {
u64 RxWords;
u64 ErrorFrames;
u64 DumpedFrames;
+ u64 FcpPktAllocFails;
+ u64 FcpPktAborts;
+ u64 FcpFrameAllocFails;
u64 LinkFailureCount;
u64 LossOfSignalCount;
u64 InvalidTxWordCount;
@@ -510,7 +516,7 @@ struct libfc_function_template {
int (*ddp_done)(struct fc_lport *, u16);
/*
* Sets up the DDP context for a given exchange id on the given
- * scatterlist if LLD supports DDP for FCoE target.
+ * scatterlist if LLD supports DDP for target.
*
* STATUS: OPTIONAL
*/
@@ -817,8 +823,7 @@ enum fc_lport_event {
* @state: Identifies the state
* @boot_time: Timestamp indicating when the local port came online
* @host_stats: SCSI host statistics
- * @dev_stats: FCoE device stats (TODO: libfc should not be
- * FCoE aware)
+ * @stats: FC local port stats (TODO separate libfc LLD stats)
* @retry_count: Number of retries in the current state
* @port_id: FC Port ID
* @wwpn: World Wide Port Name
@@ -867,7 +872,7 @@ struct fc_lport {
enum fc_lport_state state;
unsigned long boot_time;
struct fc_host_statistics host_stats;
- struct fcoe_dev_stats __percpu *dev_stats;
+ struct fc_stats __percpu *stats;
u8 retry_count;
/* Fabric information */
@@ -980,8 +985,8 @@ static inline void fc_lport_state_enter(struct fc_lport *lport,
*/
static inline int fc_lport_init_stats(struct fc_lport *lport)
{
- lport->dev_stats = alloc_percpu(struct fcoe_dev_stats);
- if (!lport->dev_stats)
+ lport->stats = alloc_percpu(struct fc_stats);
+ if (!lport->stats)
return -ENOMEM;
return 0;
}
@@ -992,7 +997,7 @@ static inline int fc_lport_init_stats(struct fc_lport *lport)
*/
static inline void fc_lport_free_stats(struct fc_lport *lport)
{
- free_percpu(lport->dev_stats);
+ free_percpu(lport->stats);
}
/**
@@ -1116,6 +1121,7 @@ void fc_fill_hdr(struct fc_frame *, const struct fc_frame *,
* EXCHANGE MANAGER LAYER
*****************************/
int fc_exch_init(struct fc_lport *);
+void fc_exch_update_stats(struct fc_lport *lport);
struct fc_exch_mgr_anchor *fc_exch_mgr_add(struct fc_lport *,
struct fc_exch_mgr *,
bool (*match)(struct fc_frame *));
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index f4f1c96dca72..ae33706afeb0 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -163,20 +163,29 @@ enum ata_command_set {
ATAPI_COMMAND_SET = 1,
};
+#define ATA_RESP_FIS_SIZE 24
+
struct sata_device {
enum ata_command_set command_set;
struct smp_resp rps_resp; /* report_phy_sata_resp */
u8 port_no; /* port number, if this is a PM (Port) */
- struct list_head children; /* PM Ports if this is a PM */
struct ata_port *ap;
struct ata_host ata_host;
- struct ata_taskfile tf;
+ u8 fis[ATA_RESP_FIS_SIZE];
+};
+
+struct ssp_device {
+ struct list_head eh_list_node; /* pending a user requested eh action */
+ struct scsi_lun reset_lun;
};
enum {
SAS_DEV_GONE,
SAS_DEV_DESTROY,
+ SAS_DEV_EH_PENDING,
+ SAS_DEV_LU_RESET,
+ SAS_DEV_RESET,
};
struct domain_device {
@@ -210,6 +219,7 @@ struct domain_device {
union {
struct expander_device ex_dev;
struct sata_device sata_dev; /* STP & directly attached */
+ struct ssp_device ssp_dev;
};
void *lldd_dev;
@@ -384,7 +394,10 @@ struct sas_ha_struct {
struct list_head defer_q; /* work queued while draining */
struct mutex drain_mutex;
unsigned long state;
- spinlock_t state_lock;
+ spinlock_t lock;
+ int eh_active;
+ wait_queue_head_t eh_wait_q;
+ struct list_head eh_dev_q;
struct mutex disco_mutex;
@@ -537,7 +550,7 @@ enum exec_status {
*/
struct ata_task_resp {
u16 frame_len;
- u8 ending_fis[24]; /* dev to host or data-in */
+ u8 ending_fis[ATA_RESP_FIS_SIZE]; /* dev to host or data-in */
};
#define SAS_STATUS_BUF_SIZE 96
@@ -600,10 +613,6 @@ struct sas_task {
enum sas_protocol task_proto;
- /* Used by the discovery code. */
- struct timer_list timer;
- struct completion completion;
-
union {
struct sas_ata_task ata_task;
struct sas_smp_task smp_task;
@@ -620,8 +629,15 @@ struct sas_task {
void *lldd_task; /* for use by LLDDs */
void *uldd_task;
+ struct sas_task_slow *slow_task;
+};
- struct work_struct abort_work;
+struct sas_task_slow {
+ /* standard/extra infrastructure for slow path commands (SMP and
+ * internal lldd commands
+ */
+ struct timer_list timer;
+ struct completion completion;
};
#define SAS_TASK_STATE_PENDING 1
@@ -631,6 +647,7 @@ struct sas_task {
#define SAS_TASK_AT_INITIATOR 16
extern struct sas_task *sas_alloc_task(gfp_t flags);
+extern struct sas_task *sas_alloc_slow_task(gfp_t flags);
extern void sas_free_task(struct sas_task *task);
struct sas_domain_function_template {
@@ -706,6 +723,7 @@ void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *);
void sas_init_dev(struct domain_device *);
void sas_task_abort(struct sas_task *);
+int sas_eh_abort_handler(struct scsi_cmnd *cmd);
int sas_eh_device_reset_handler(struct scsi_cmnd *cmd);
int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd);
diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h
index 77670e823ed8..2dfbdaa0b34a 100644
--- a/include/scsi/sas_ata.h
+++ b/include/scsi/sas_ata.h
@@ -45,6 +45,7 @@ void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
void sas_ata_schedule_reset(struct domain_device *dev);
void sas_ata_wait_eh(struct domain_device *dev);
void sas_probe_sata(struct asd_sas_port *port);
+void sas_ata_end_eh(struct ata_port *ap);
#else
@@ -85,6 +86,10 @@ static inline int sas_get_ata_info(struct domain_device *dev, struct ex_phy *phy
{
return 0;
}
+
+static inline void sas_ata_end_eh(struct ata_port *ap)
+{
+}
#endif
#endif /* _SAS_ATA_H_ */
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index 4527b3a13321..66216c1acb48 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -161,6 +161,8 @@ struct scsi_cmnd;
#define MI_REPORT_PRIORITY 0x0e
#define MI_REPORT_TIMESTAMP 0x0f
#define MI_MANAGEMENT_PROTOCOL_IN 0x10
+/* value for MI_REPORT_TARGET_PGS ext header */
+#define MI_EXT_HDR_PARAM_FMT 0x20
/* values for maintenance out */
#define MO_SET_IDENTIFYING_INFORMATION 0x06
#define MO_SET_TARGET_PGS 0x0a
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 1e1198546c72..ac06cc595890 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -134,10 +134,16 @@ struct scsi_cmnd {
static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
{
+ struct scsi_driver **sdp;
+
if (!cmd->request->rq_disk)
return NULL;
- return *(struct scsi_driver **)cmd->request->rq_disk->private_data;
+ sdp = (struct scsi_driver **)cmd->request->rq_disk->private_data;
+ if (!sdp)
+ return NULL;
+
+ return *sdp;
}
extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t);
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index aff7525de194..9895f69294fc 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -42,6 +42,7 @@ enum scsi_device_state {
* originate in the mid-layer) */
SDEV_OFFLINE, /* Device offlined (by error handling or
* user request */
+ SDEV_TRANSPORT_OFFLINE, /* Offlined by transport class error handler */
SDEV_BLOCK, /* Device blocked by scsi lld. No
* scsi commands from user or midlayer
* should be issued to the scsi
@@ -154,6 +155,7 @@ struct scsi_device {
unsigned try_rc_10_first:1; /* Try READ_CAPACACITY_10 first */
unsigned is_visible:1; /* is the device visible in sysfs */
unsigned can_power_off:1; /* Device supports runtime power off */
+ unsigned wce_default_on:1; /* Cache is ON by default */
DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */
struct list_head event_list; /* asserted events */
@@ -374,7 +376,7 @@ extern void scsi_scan_target(struct device *parent, unsigned int channel,
unsigned int id, unsigned int lun, int rescan);
extern void scsi_target_reap(struct scsi_target *);
extern void scsi_target_block(struct device *);
-extern void scsi_target_unblock(struct device *);
+extern void scsi_target_unblock(struct device *, enum scsi_device_state);
extern void scsi_remove_target(struct device *);
extern void int_to_scsilun(unsigned int, struct scsi_lun *);
extern int scsilun_to_int(struct scsi_lun *);
@@ -422,6 +424,7 @@ static inline unsigned int sdev_id(struct scsi_device *sdev)
static inline int scsi_device_online(struct scsi_device *sdev)
{
return (sdev->sdev_state != SDEV_OFFLINE &&
+ sdev->sdev_state != SDEV_TRANSPORT_OFFLINE &&
sdev->sdev_state != SDEV_DEL);
}
static inline int scsi_device_blocked(struct scsi_device *sdev)
diff --git a/include/scsi/scsi_dh.h b/include/scsi/scsi_dh.h
index e3f2db212ddc..620c723ee8ed 100644
--- a/include/scsi/scsi_dh.h
+++ b/include/scsi/scsi_dh.h
@@ -60,6 +60,7 @@ extern int scsi_dh_activate(struct request_queue *, activate_complete, void *);
extern int scsi_dh_handler_exist(const char *);
extern int scsi_dh_attach(struct request_queue *, const char *);
extern void scsi_dh_detach(struct request_queue *);
+extern const char *scsi_dh_attached_handler_name(struct request_queue *, gfp_t);
extern int scsi_dh_set_params(struct request_queue *, const char *);
#else
static inline int scsi_dh_activate(struct request_queue *req,
@@ -80,6 +81,11 @@ static inline void scsi_dh_detach(struct request_queue *q)
{
return;
}
+static inline const char *scsi_dh_attached_handler_name(struct request_queue *q,
+ gfp_t gfp)
+{
+ return NULL;
+}
static inline int scsi_dh_set_params(struct request_queue *req, const char *params)
{
return -SCSI_DH_NOSYS;
diff --git a/include/scsi/scsi_scan.h b/include/scsi/scsi_scan.h
deleted file mode 100644
index 78898889243d..000000000000
--- a/include/scsi/scsi_scan.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _SCSI_SCSI_SCAN_H
-#define _SCSI_SCSI_SCAN_H
-
-#ifdef CONFIG_SCSI
-/* drivers/scsi/scsi_scan.c */
-extern int scsi_complete_async_scans(void);
-#else
-static inline int scsi_complete_async_scans(void) { return 0; }
-#endif
-
-#endif /* _SCSI_SCSI_SCAN_H */
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 719faf1863ad..b797e8fad669 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -426,6 +426,18 @@ struct fc_host_statistics {
u64 fcp_control_requests;
u64 fcp_input_megabytes;
u64 fcp_output_megabytes;
+ u64 fcp_packet_alloc_failures; /* fcp packet allocation failures */
+ u64 fcp_packet_aborts; /* fcp packet aborted */
+ u64 fcp_frame_alloc_failures; /* fcp frame allocation failures */
+
+ /* fc exches statistics */
+ u64 fc_no_free_exch; /* no free exch memory */
+ u64 fc_no_free_exch_xid; /* no free exch id */
+ u64 fc_xid_not_found; /* exch not found for a response */
+ u64 fc_xid_busy; /* exch exist for new a request */
+ u64 fc_seq_not_found; /* seq is not found for exchange */
+ u64 fc_non_bls_resp; /* a non BLS response frame with
+ a sequence responder in new exch */
};