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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Browse Source 
Pull SCSI updates from James Bottomley:
 "This is mostly update of the usual drivers: smarpqi, lpfc, qedi,
  megaraid_sas, libsas, zfcp, mpt3sas, hisi_sas.

  Additionally, we have a pile of annotation, unused variable and minor
  updates.

  The big API change is the updates for Christoph's DMA rework which
  include removing the DISABLE_CLUSTERING flag.

  And finally there are a couple of target tree updates"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (259 commits)
  scsi: isci: request: mark expected switch fall-through
  scsi: isci: remote_node_context: mark expected switch fall-throughs
  scsi: isci: remote_device: Mark expected switch fall-throughs
  scsi: isci: phy: Mark expected switch fall-through
  scsi: iscsi: Capture iscsi debug messages using tracepoints
  scsi: myrb: Mark expected switch fall-throughs
  scsi: megaraid: fix out-of-bound array accesses
  scsi: mpt3sas: mpt3sas_scsih: Mark expected switch fall-through
  scsi: fcoe: remove set but not used variable 'port'
  scsi: smartpqi: call pqi_free_interrupts() in pqi_shutdown()
  scsi: smartpqi: fix build warnings
  scsi: smartpqi: update driver version
  scsi: smartpqi: add ofa support
  scsi: smartpqi: increase fw status register read timeout
  scsi: smartpqi: bump driver version
  scsi: smartpqi: add smp_utils support
  scsi: smartpqi: correct lun reset issues
  scsi: smartpqi: correct volume status
  scsi: smartpqi: do not offline disks for transient did no connect conditions
  scsi: smartpqi: allow for larger raid maps
  ...
This commit is contained in:
Linus Torvalds
2018-12-28 14:48:06 -08:00
parent af7ddd8a62 da7903092b
commit 938edb8a31
269 changed files with 7993 additions and 3853 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
Documentation/devicetree/bindings/ufs/cdns,ufshc.txt Normal file
View File

@@ -0,0 +1,31 @@
* Cadence Universal Flash Storage (UFS) Controller
UFS nodes are defined to describe on-chip UFS host controllers.
Each UFS controller instance should have its own node.
Please see the ufshcd-pltfrm.txt for a list of all available properties.
Required properties:
- compatible : Compatible list, contains the following controller:
"cdns,ufshc"
complemented with the JEDEC version:
"jedec,ufs-2.0"
- reg : Address and length of the UFS register set.
- interrupts : One interrupt mapping.
- freq-table-hz : Clock frequency table.
See the ufshcd-pltfrm.txt for details.
- clocks : List of phandle and clock specifier pairs.
- clock-names : List of clock input name strings sorted in the same
order as the clocks property. "core_clk" is mandatory.
Depending on a type of a PHY,
the "phy_clk" clock can also be added, if needed.
Example:
ufs@fd030000 {
compatible = "cdns,ufshc", "jedec,ufs-2.0";
reg = <0xfd030000 0x10000>;
interrupts = <0 1 IRQ_TYPE_LEVEL_HIGH>;
freq-table-hz = <0 0>, <0 0>;
clocks = <&ufs_core_clk>, <&ufs_phy_clk>;
clock-names = "core_clk", "phy_clk";
};

6
Documentation/devicetree/bindings/ufs/ufshcd-pltfrm.txt
View File

@@ -33,6 +33,12 @@ Optional properties:
- clocks : List of phandle and clock specifier pairs
- clock-names : List of clock input name strings sorted in the same
order as the clocks property.
"ref_clk" indicates reference clock frequency.
UFS host supplies reference clock to UFS device and UFS device
specification allows host to provide one of the 4 frequencies (19.2 MHz,
26 MHz, 38.4 MHz, 52MHz) for reference clock. This "ref_clk" entry is
parsed and used to update the reference clock setting in device.
Defaults to 26 MHz(as per specification) if not specified by host.
- freq-table-hz : Array of <min max> operating frequencies stored in the same
order as the clocks property. If this property is not
defined or a value in the array is "0" then it is assumed

2
Documentation/scsi/scsi_mid_low_api.txt
View File

@@ -1098,8 +1098,6 @@ of interest:
unchecked_isa_dma - 1=>only use bottom 16 MB of ram (ISA DMA addressing
restriction), 0=>can use full 32 bit (or better) DMA
address space
use_clustering - 1=>SCSI commands in mid level's queue can be merged,
0=>disallow SCSI command merging
no_async_abort - 1=>Asynchronous aborts are not supported
0=>Timed-out commands will be aborted asynchronously
hostt - pointer to driver's struct scsi_host_template from which

2
arch/ia64/hp/sim/simscsi.c
View File

@@ -347,7 +347,7 @@ static struct scsi_host_template driver_template = {
.sg_tablesize = SG_ALL,
.max_sectors = 1024,
.cmd_per_lun = SIMSCSI_REQ_QUEUE_LEN,
.use_clustering = DISABLE_CLUSTERING,
.dma_boundary = PAGE_SIZE - 1,
};
static int __init

18
block/blk-merge.c
View File

@@ -195,7 +195,7 @@ static struct bio *blk_bio_segment_split(struct request_queue *q,
goto split;
}
if (bvprvp && blk_queue_cluster(q)) {
if (bvprvp) {
if (seg_size + bv.bv_len > queue_max_segment_size(q))
goto new_segment;
if (!biovec_phys_mergeable(q, bvprvp, &bv))
@@ -295,7 +295,7 @@ static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
bool no_sg_merge)
{
struct bio_vec bv, bvprv = { NULL };
int cluster, prev = 0;
int prev = 0;
unsigned int seg_size, nr_phys_segs;
struct bio *fbio, *bbio;
struct bvec_iter iter;
@@ -313,7 +313,6 @@ static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
}
fbio = bio;
cluster = blk_queue_cluster(q);
seg_size = 0;
nr_phys_segs = 0;
for_each_bio(bio) {
@@ -325,7 +324,7 @@ static unsigned int __blk_recalc_rq_segments(struct request_queue *q,
if (no_sg_merge)
goto new_segment;
if (prev && cluster) {
if (prev) {
if (seg_size + bv.bv_len
> queue_max_segment_size(q))
goto new_segment;
@@ -395,9 +394,6 @@ static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio,
{
struct bio_vec end_bv = { NULL }, nxt_bv;
if (!blk_queue_cluster(q))
return 0;
if (bio->bi_seg_back_size + nxt->bi_seg_front_size >
queue_max_segment_size(q))
return 0;
@@ -414,12 +410,12 @@ static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio,
static inline void
__blk_segment_map_sg(struct request_queue *q, struct bio_vec *bvec,
struct scatterlist *sglist, struct bio_vec *bvprv,
struct scatterlist **sg, int *nsegs, int *cluster)
struct scatterlist **sg, int *nsegs)
{
int nbytes = bvec->bv_len;
if (*sg && *cluster) {
if (*sg) {
if ((*sg)->length + nbytes > queue_max_segment_size(q))
goto new_segment;
if (!biovec_phys_mergeable(q, bvprv, bvec))
@@ -465,12 +461,12 @@ static int __blk_bios_map_sg(struct request_queue *q, struct bio *bio,
{
struct bio_vec bvec, bvprv = { NULL };
struct bvec_iter iter;
int cluster = blk_queue_cluster(q), nsegs = 0;
int nsegs = 0;
for_each_bio(bio)
bio_for_each_segment(bvec, bio, iter)
__blk_segment_map_sg(q, &bvec, sglist, &bvprv, sg,
&nsegs, &cluster);
&nsegs);
return nsegs;
}

3
block/blk-settings.c
View File

@@ -56,7 +56,6 @@ void blk_set_default_limits(struct queue_limits *lim)
lim->alignment_offset = 0;
lim->io_opt = 0;
lim->misaligned = 0;
lim->cluster = 1;
lim->zoned = BLK_ZONED_NONE;
}
EXPORT_SYMBOL(blk_set_default_limits);
@@ -547,8 +546,6 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
t->io_min = max(t->io_min, b->io_min);
t->io_opt = lcm_not_zero(t->io_opt, b->io_opt);
t->cluster &= b->cluster;
/* Physical block size a multiple of the logical block size? */
if (t->physical_block_size & (t->logical_block_size - 1)) {
t->physical_block_size = t->logical_block_size;

5
block/blk-sysfs.c
View File

@@ -132,10 +132,7 @@ static ssize_t queue_max_integrity_segments_show(struct request_queue *q, char *
static ssize_t queue_max_segment_size_show(struct request_queue *q, char *page)
{
if (blk_queue_cluster(q))
return queue_var_show(queue_max_segment_size(q), (page));
return queue_var_show(PAGE_SIZE, (page));
return queue_var_show(queue_max_segment_size(q), (page));
}
static ssize_t queue_logical_block_size_show(struct request_queue *q, char *page)

1
drivers/firewire/sbp2.c
View File

@@ -1610,7 +1610,6 @@ static struct scsi_host_template scsi_driver_template = {
.eh_abort_handler = sbp2_scsi_abort,
.this_id = -1,
.sg_tablesize = SG_ALL,
.use_clustering = ENABLE_CLUSTERING,
.can_queue = 1,
.sdev_attrs = sbp2_scsi_sysfs_attrs,
};

1
drivers/infiniband/ulp/iser/iscsi_iser.c
View File

@@ -997,7 +997,6 @@ static struct scsi_host_template iscsi_iser_sht = {
.eh_device_reset_handler= iscsi_eh_device_reset,
.eh_target_reset_handler = iscsi_eh_recover_target,
.target_alloc = iscsi_target_alloc,
.use_clustering = ENABLE_CLUSTERING,
.slave_alloc = iscsi_iser_slave_alloc,
.proc_name = "iscsi_iser",
.this_id = -1,

1
drivers/infiniband/ulp/srp/ib_srp.c
View File

@@ -3215,7 +3215,6 @@ static struct scsi_host_template srp_template = {
.can_queue = SRP_DEFAULT_CMD_SQ_SIZE,
.this_id = -1,
.cmd_per_lun = SRP_DEFAULT_CMD_SQ_SIZE,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = srp_host_attrs,
.track_queue_depth = 1,
};

8
drivers/infiniband/ulp/srpt/ib_srpt.c
View File

@@ -3147,11 +3147,6 @@ static int srpt_check_false(struct se_portal_group *se_tpg)
return 0;
}
static char *srpt_get_fabric_name(void)
{
return "srpt";
}
static struct srpt_port *srpt_tpg_to_sport(struct se_portal_group *tpg)
{
return tpg->se_tpg_wwn->priv;
@@ -3678,8 +3673,7 @@ static struct configfs_attribute *srpt_wwn_attrs[] = {
static const struct target_core_fabric_ops srpt_template = {
.module = THIS_MODULE,
.name = "srpt",
.get_fabric_name = srpt_get_fabric_name,
.fabric_name = "srpt",
.tpg_get_wwn = srpt_get_fabric_wwn,
.tpg_get_tag = srpt_get_tag,
.tpg_check_demo_mode = srpt_check_false,

1
drivers/message/fusion/mptfc.c
View File

@@ -129,7 +129,6 @@ static struct scsi_host_template mptfc_driver_template = {
.sg_tablesize = MPT_SCSI_SG_DEPTH,
.max_sectors = 8192,
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mptscsih_host_attrs,
};

1
drivers/message/fusion/mptsas.c
View File

@@ -1992,7 +1992,6 @@ static struct scsi_host_template mptsas_driver_template = {
.sg_tablesize = MPT_SCSI_SG_DEPTH,
.max_sectors = 8192,
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mptscsih_host_attrs,
.no_write_same = 1,
};

1
drivers/message/fusion/mptspi.c
View File

@@ -848,7 +848,6 @@ static struct scsi_host_template mptspi_driver_template = {
.sg_tablesize = MPT_SCSI_SG_DEPTH,
.max_sectors = 8192,
.cmd_per_lun = 7,
.use_clustering = ENABLE_CLUSTERING,
.shost_attrs = mptscsih_host_attrs,
};

82
drivers/s390/scsi/zfcp_aux.c
View File

@@ -4,7 +4,7 @@
*
* Module interface and handling of zfcp data structures.
*
* Copyright IBM Corp. 2002, 2013
* Copyright IBM Corp. 2002, 2017
*/
/*
@@ -124,6 +124,9 @@ static int __init zfcp_module_init(void)
{
int retval = -ENOMEM;
if (zfcp_experimental_dix)
pr_warn("DIX is enabled. It is experimental and might cause problems\n");
zfcp_fsf_qtcb_cache = zfcp_cache_hw_align("zfcp_fsf_qtcb",
sizeof(struct fsf_qtcb));
if (!zfcp_fsf_qtcb_cache)
@@ -248,43 +251,36 @@ static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
{
if (adapter->pool.erp_req)
mempool_destroy(adapter->pool.erp_req);
if (adapter->pool.scsi_req)
mempool_destroy(adapter->pool.scsi_req);
if (adapter->pool.scsi_abort)
mempool_destroy(adapter->pool.scsi_abort);
if (adapter->pool.qtcb_pool)
mempool_destroy(adapter->pool.qtcb_pool);
if (adapter->pool.status_read_req)
mempool_destroy(adapter->pool.status_read_req);
if (adapter->pool.sr_data)
mempool_destroy(adapter->pool.sr_data);
if (adapter->pool.gid_pn)
mempool_destroy(adapter->pool.gid_pn);
mempool_destroy(adapter->pool.erp_req);
mempool_destroy(adapter->pool.scsi_req);
mempool_destroy(adapter->pool.scsi_abort);
mempool_destroy(adapter->pool.qtcb_pool);
mempool_destroy(adapter->pool.status_read_req);
mempool_destroy(adapter->pool.sr_data);
mempool_destroy(adapter->pool.gid_pn);
}
/**
* zfcp_status_read_refill - refill the long running status_read_requests
* @adapter: ptr to struct zfcp_adapter for which the buffers should be refilled
*
* Returns: 0 on success, 1 otherwise
*
* if there are 16 or more status_read requests missing an adapter_reopen
* is triggered
* Return:
* * 0 on success meaning at least one status read is pending
* * 1 if posting failed and not a single status read buffer is pending,
* also triggers adapter reopen recovery
*/
int zfcp_status_read_refill(struct zfcp_adapter *adapter)
{
while (atomic_read(&adapter->stat_miss) > 0)
while (atomic_add_unless(&adapter->stat_miss, -1, 0))
if (zfcp_fsf_status_read(adapter->qdio)) {
atomic_inc(&adapter->stat_miss); /* undo add -1 */
if (atomic_read(&adapter->stat_miss) >=
adapter->stat_read_buf_num) {
zfcp_erp_adapter_reopen(adapter, 0, "axsref1");
return 1;
}
break;
} else
atomic_dec(&adapter->stat_miss);
}
return 0;
}
@@ -542,45 +538,3 @@ err_out:
zfcp_ccw_adapter_put(adapter);
return ERR_PTR(retval);
}
/**
* zfcp_sg_free_table - free memory used by scatterlists
* @sg: pointer to scatterlist
* @count: number of scatterlist which are to be free'ed
* the scatterlist are expected to reference pages always
*/
void zfcp_sg_free_table(struct scatterlist *sg, int count)
{
int i;
for (i = 0; i < count; i++, sg++)
if (sg)
free_page((unsigned long) sg_virt(sg));
else
break;
}
/**
* zfcp_sg_setup_table - init scatterlist and allocate, assign buffers
* @sg: pointer to struct scatterlist
* @count: number of scatterlists which should be assigned with buffers
* of size page
*
* Returns: 0 on success, -ENOMEM otherwise
*/
int zfcp_sg_setup_table(struct scatterlist *sg, int count)
{
void *addr;
int i;
sg_init_table(sg, count);
for (i = 0; i < count; i++, sg++) {
addr = (void *) get_zeroed_page(GFP_KERNEL);
if (!addr) {
zfcp_sg_free_table(sg, i);
return -ENOMEM;
}
sg_set_buf(sg, addr, PAGE_SIZE);
}
return 0;
}

25
drivers/s390/scsi/zfcp_dbf.c
View File

@@ -63,7 +63,8 @@ void zfcp_dbf_pl_write(struct zfcp_dbf *dbf, void *data, u16 length, char *area,
/**
* zfcp_dbf_hba_fsf_res - trace event for fsf responses
* @tag: tag indicating which kind of unsolicited status has been received
* @tag: tag indicating which kind of FSF response has been received
* @level: trace level to be used for event
* @req: request for which a response was received
*/
void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
@@ -81,8 +82,8 @@ void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
rec->id = ZFCP_DBF_HBA_RES;
rec->fsf_req_id = req->req_id;
rec->fsf_req_status = req->status;
rec->fsf_cmd = req->fsf_command;
rec->fsf_seq_no = req->seq_no;
rec->fsf_cmd = q_head->fsf_command;
rec->fsf_seq_no = q_pref->req_seq_no;
rec->u.res.req_issued = req->issued;
rec->u.res.prot_status = q_pref->prot_status;
rec->u.res.fsf_status = q_head->fsf_status;
@@ -94,7 +95,7 @@ void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
memcpy(rec->u.res.fsf_status_qual, &q_head->fsf_status_qual,
FSF_STATUS_QUALIFIER_SIZE);
if (req->fsf_command != FSF_QTCB_FCP_CMND) {
if (q_head->fsf_command != FSF_QTCB_FCP_CMND) {
rec->pl_len = q_head->log_length;
zfcp_dbf_pl_write(dbf, (char *)q_pref + q_head->log_start,
rec->pl_len, "fsf_res", req->req_id);
@@ -127,7 +128,7 @@ void zfcp_dbf_hba_fsf_uss(char *tag, struct zfcp_fsf_req *req)
rec->id = ZFCP_DBF_HBA_USS;
rec->fsf_req_id = req->req_id;
rec->fsf_req_status = req->status;
rec->fsf_cmd = req->fsf_command;
rec->fsf_cmd = FSF_QTCB_UNSOLICITED_STATUS;
if (!srb)
goto log;
@@ -153,7 +154,7 @@ log:
/**
* zfcp_dbf_hba_bit_err - trace event for bit error conditions
* @tag: tag indicating which kind of unsolicited status has been received
* @tag: tag indicating which kind of bit error unsolicited status was received
* @req: request which caused the bit_error condition
*/
void zfcp_dbf_hba_bit_err(char *tag, struct zfcp_fsf_req *req)
@@ -174,7 +175,7 @@ void zfcp_dbf_hba_bit_err(char *tag, struct zfcp_fsf_req *req)
rec->id = ZFCP_DBF_HBA_BIT;
rec->fsf_req_id = req->req_id;
rec->fsf_req_status = req->status;
rec->fsf_cmd = req->fsf_command;
rec->fsf_cmd = FSF_QTCB_UNSOLICITED_STATUS;
memcpy(&rec->u.be, &sr_buf->payload.bit_error,
sizeof(struct fsf_bit_error_payload));
@@ -224,6 +225,7 @@ void zfcp_dbf_hba_def_err(struct zfcp_adapter *adapter, u64 req_id, u16 scount,
/**
* zfcp_dbf_hba_basic - trace event for basic adapter events
* @tag: identifier for event
* @adapter: pointer to struct zfcp_adapter
*/
void zfcp_dbf_hba_basic(char *tag, struct zfcp_adapter *adapter)
@@ -357,7 +359,7 @@ void zfcp_dbf_rec_run_lvl(int level, char *tag, struct zfcp_erp_action *erp)
rec->u.run.fsf_req_id = erp->fsf_req_id;
rec->u.run.rec_status = erp->status;
rec->u.run.rec_step = erp->step;
rec->u.run.rec_action = erp->action;
rec->u.run.rec_action = erp->type;
if (erp->sdev)
rec->u.run.rec_count =
@@ -478,7 +480,8 @@ out:
/**
* zfcp_dbf_san_req - trace event for issued SAN request
* @tag: identifier for event
* @fsf_req: request containing issued CT data
* @fsf: request containing issued CT or ELS data
* @d_id: N_Port_ID where SAN request is sent to
* d_id: destination ID
*/
void zfcp_dbf_san_req(char *tag, struct zfcp_fsf_req *fsf, u32 d_id)
@@ -560,7 +563,7 @@ static u16 zfcp_dbf_san_res_cap_len_if_gpn_ft(char *tag,
/**
* zfcp_dbf_san_res - trace event for received SAN request
* @tag: identifier for event
* @fsf_req: request containing issued CT data
* @fsf: request containing received CT or ELS data
*/
void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
{
@@ -580,7 +583,7 @@ void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
/**
* zfcp_dbf_san_in_els - trace event for incoming ELS
* @tag: identifier for event
* @fsf_req: request containing issued CT data
* @fsf: request containing received ELS data
*/
void zfcp_dbf_san_in_els(char *tag, struct zfcp_fsf_req *fsf)
{

14
drivers/s390/scsi/zfcp_dbf.h
View File

@@ -42,7 +42,8 @@ struct zfcp_dbf_rec_trigger {
* @fsf_req_id: request id for fsf requests
* @rec_status: status of the fsf request
* @rec_step: current step of the recovery action
* rec_count: recovery counter
* @rec_action: ERP action type
* @rec_count: recoveries including retries for particular @rec_action
*/
struct zfcp_dbf_rec_running {
u64 fsf_req_id;
@@ -72,6 +73,7 @@ enum zfcp_dbf_rec_id {
* @adapter_status: current status of the adapter
* @port_status: current status of the port
* @lun_status: current status of the lun
* @u: record type specific data
* @u.trig: structure zfcp_dbf_rec_trigger
* @u.run: structure zfcp_dbf_rec_running
*/
@@ -126,6 +128,8 @@ struct zfcp_dbf_san {
* @prot_status_qual: protocol status qualifier
* @fsf_status: fsf status
* @fsf_status_qual: fsf status qualifier
* @port_handle: handle for port
* @lun_handle: handle for LUN
*/
struct zfcp_dbf_hba_res {
u64 req_issued;
@@ -158,6 +162,7 @@ struct zfcp_dbf_hba_uss {
* @ZFCP_DBF_HBA_RES: response trace record
* @ZFCP_DBF_HBA_USS: unsolicited status trace record
* @ZFCP_DBF_HBA_BIT: bit error trace record
* @ZFCP_DBF_HBA_BASIC: basic adapter event, only trace tag, no other data
*/
enum zfcp_dbf_hba_id {
ZFCP_DBF_HBA_RES = 1,
@@ -176,6 +181,9 @@ enum zfcp_dbf_hba_id {
* @fsf_seq_no: fsf sequence number
* @pl_len: length of payload stored as zfcp_dbf_pay
* @u: record type specific data
* @u.res: data for fsf responses
* @u.uss: data for unsolicited status buffer
* @u.be: data for bit error unsolicited status buffer
*/
struct zfcp_dbf_hba {
u8 id;
@@ -339,8 +347,8 @@ void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req)
zfcp_dbf_hba_fsf_resp_suppress(req)
? 5 : 1, req);
} else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
(req->fsf_command == FSF_QTCB_OPEN_LUN)) {
} else if ((qtcb->header.fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) ||
(qtcb->header.fsf_command == FSF_QTCB_OPEN_LUN)) {
zfcp_dbf_hba_fsf_resp("fs_open", 4, req);
} else if (qtcb->header.log_length) {

117
drivers/s390/scsi/zfcp_def.h
View File

@@ -4,7 +4,7 @@
*
* Global definitions for the zfcp device driver.
*
* Copyright IBM Corp. 2002, 2010
* Copyright IBM Corp. 2002, 2017
*/
#ifndef ZFCP_DEF_H
@@ -41,24 +41,16 @@
#include "zfcp_fc.h"
#include "zfcp_qdio.h"
struct zfcp_reqlist;
/********************* SCSI SPECIFIC DEFINES *********************************/
#define ZFCP_SCSI_ER_TIMEOUT (10*HZ)
/********************* FSF SPECIFIC DEFINES *********************************/
/* ATTENTION: value must not be used by hardware */
#define FSF_QTCB_UNSOLICITED_STATUS 0x6305
/* timeout value for "default timer" for fsf requests */
#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ)
/*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/
/*
* Note, the leftmost status byte is common among adapter, port
* and unit
* Note, the leftmost 12 status bits (3 nibbles) are common among adapter, port
* and unit. This is a mask for bitwise 'and' with status values.
*/
#define ZFCP_COMMON_FLAGS 0xfff00000
@@ -97,7 +89,49 @@ struct zfcp_reqlist;
/************************* STRUCTURE DEFINITIONS *****************************/
struct zfcp_fsf_req;
/**
* enum zfcp_erp_act_type - Type of ERP action object.
* @ZFCP_ERP_ACTION_REOPEN_LUN: LUN recovery.
* @ZFCP_ERP_ACTION_REOPEN_PORT: Port recovery.
* @ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: Forced port recovery.
* @ZFCP_ERP_ACTION_REOPEN_ADAPTER: Adapter recovery.
*
* Values must fit into u8 because of code dependencies:
* zfcp_dbf_rec_trig(), &zfcp_dbf_rec_trigger.want, &zfcp_dbf_rec_trigger.need;
* zfcp_dbf_rec_run_lvl(), zfcp_dbf_rec_run(), &zfcp_dbf_rec_running.rec_action.
*/
enum zfcp_erp_act_type {
ZFCP_ERP_ACTION_REOPEN_LUN = 1,
ZFCP_ERP_ACTION_REOPEN_PORT = 2,
ZFCP_ERP_ACTION_REOPEN_PORT_FORCED = 3,
ZFCP_ERP_ACTION_REOPEN_ADAPTER = 4,
};
/*
* Values must fit into u16 because of code dependencies:
* zfcp_dbf_rec_run_lvl(), zfcp_dbf_rec_run(), zfcp_dbf_rec_run_wka(),
* &zfcp_dbf_rec_running.rec_step.
*/
enum zfcp_erp_steps {
ZFCP_ERP_STEP_UNINITIALIZED = 0x0000,
ZFCP_ERP_STEP_PHYS_PORT_CLOSING = 0x0010,
ZFCP_ERP_STEP_PORT_CLOSING = 0x0100,
ZFCP_ERP_STEP_PORT_OPENING = 0x0800,
ZFCP_ERP_STEP_LUN_CLOSING = 0x1000,
ZFCP_ERP_STEP_LUN_OPENING = 0x2000,
};
struct zfcp_erp_action {
struct list_head list;
enum zfcp_erp_act_type type; /* requested action code */
struct zfcp_adapter *adapter; /* device which should be recovered */
struct zfcp_port *port;
struct scsi_device *sdev;
u32 status; /* recovery status */
enum zfcp_erp_steps step; /* active step of this erp action */
unsigned long fsf_req_id;
struct timer_list timer;
};
/* holds various memory pools of an adapter */
struct zfcp_adapter_mempool {
@@ -111,37 +145,6 @@ struct zfcp_adapter_mempool {
mempool_t *qtcb_pool;
};
struct zfcp_erp_action {
struct list_head list;
int action; /* requested action code */
struct zfcp_adapter *adapter; /* device which should be recovered */
struct zfcp_port *port;
struct scsi_device *sdev;
u32 status; /* recovery status */
u32 step; /* active step of this erp action */
unsigned long fsf_req_id;
struct timer_list timer;
};
struct fsf_latency_record {
u32 min;
u32 max;
u64 sum;
};
struct latency_cont {
struct fsf_latency_record channel;
struct fsf_latency_record fabric;
u64 counter;
};
struct zfcp_latencies {
struct latency_cont read;
struct latency_cont write;
struct latency_cont cmd;
spinlock_t lock;
};
struct zfcp_adapter {
struct kref ref;
u64 peer_wwnn; /* P2P peer WWNN */
@@ -220,6 +223,25 @@ struct zfcp_port {
unsigned int starget_id;
};
struct zfcp_latency_record {
u32 min;
u32 max;
u64 sum;
};
struct zfcp_latency_cont {
struct zfcp_latency_record channel;
struct zfcp_latency_record fabric;
u64 counter;
};
struct zfcp_latencies {
struct zfcp_latency_cont read;
struct zfcp_latency_cont write;
struct zfcp_latency_cont cmd;
spinlock_t lock;
};
/**
* struct zfcp_unit - LUN configured via zfcp sysfs
* @dev: struct device for sysfs representation and reference counting
@@ -287,9 +309,7 @@ static inline u64 zfcp_scsi_dev_lun(struct scsi_device *sdev)
* @qdio_req: qdio queue related values
* @completion: used to signal the completion of the request
* @status: status of the request
* @fsf_command: FSF command issued
* @qtcb: associated QTCB
* @seq_no: sequence number of this request
* @data: private data
* @timer: timer data of this request
* @erp_action: reference to erp action if request issued on behalf of ERP
@@ -304,9 +324,7 @@ struct zfcp_fsf_req {
struct zfcp_qdio_req qdio_req;
struct completion completion;
u32 status;
u32 fsf_command;
struct fsf_qtcb *qtcb;
u32 seq_no;
void *data;
struct timer_list timer;
struct zfcp_erp_action *erp_action;
@@ -321,4 +339,9 @@ int zfcp_adapter_multi_buffer_active(struct zfcp_adapter *adapter)
return atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_MB_ACT;
}
static inline bool zfcp_fsf_req_is_status_read_buffer(struct zfcp_fsf_req *req)
{
return req->qtcb == NULL;
}
#endif /* ZFCP_DEF_H */

345
drivers/s390/scsi/zfcp_erp.c
View File

File diff suppressed because it is too large Load Diff

9
drivers/s390/scsi/zfcp_ext.h
View File

@@ -59,14 +59,15 @@ extern void zfcp_dbf_scsi_eh(char *tag, struct zfcp_adapter *adapter,
/* zfcp_erp.c */
extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);
extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32);
extern void zfcp_erp_port_forced_no_port_dbf(char *id,
extern void zfcp_erp_port_forced_no_port_dbf(char *dbftag,
struct zfcp_adapter *adapter,
u64 port_name, u32 port_id);
extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *);
extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *);
extern void zfcp_erp_set_port_status(struct zfcp_port *, u32);
extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32);
extern void zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id);
extern void zfcp_erp_port_reopen(struct zfcp_port *port, int clear,
char *dbftag);
extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *);
extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *);
extern void zfcp_erp_set_lun_status(struct scsi_device *, u32);
@@ -79,7 +80,8 @@ extern void zfcp_erp_thread_kill(struct zfcp_adapter *);
extern void zfcp_erp_wait(struct zfcp_adapter *);
extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long);
extern void zfcp_erp_timeout_handler(struct timer_list *t);
extern void zfcp_erp_adapter_reset_sync(struct zfcp_adapter *adapter, char *id);
extern void zfcp_erp_adapter_reset_sync(struct zfcp_adapter *adapter,
char *dbftag);
/* zfcp_fc.c */
extern struct kmem_cache *zfcp_fc_req_cache;
@@ -144,6 +146,7 @@ extern void zfcp_qdio_close(struct zfcp_qdio *);
extern void zfcp_qdio_siosl(struct zfcp_adapter *);
/* zfcp_scsi.c */
extern bool zfcp_experimental_dix;
extern struct scsi_transport_template *zfcp_scsi_transport_template;
extern int zfcp_scsi_adapter_register(struct zfcp_adapter *);
extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *);

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