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ba6d10ab80
This is mostly update of the usual drivers: qla2xxx, hpsa, lpfc, ufs,
mpt3sas, ibmvscsi, megaraid_sas, bnx2fc and hisi_sas as well as the
removal of the osst driver (I heard from Willem privately that he
would like the driver removed because all his test hardware has
failed). Plus number of minor changes, spelling fixes and other
trivia.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This is mostly update of the usual drivers: qla2xxx, hpsa, lpfc, ufs,
mpt3sas, ibmvscsi, megaraid_sas, bnx2fc and hisi_sas as well as the
removal of the osst driver (I heard from Willem privately that he
would like the driver removed because all his test hardware has
failed). Plus number of minor changes, spelling fixes and other
trivia.
The big merge conflict this time around is the SPDX licence tags.
Following discussion on linux-next, we believe our version to be more
accurate than the one in the tree, so the resolution is to take our
version for all the SPDX conflicts"
Note on the SPDX license tag conversion conflicts: the SCSI tree had
done its own SPDX conversion, which in some cases conflicted with the
treewide ones done by Thomas & co.
In almost all cases, the conflicts were purely syntactic: the SCSI tree
used the old-style SPDX tags ("GPL-2.0" and "GPL-2.0+") while the
treewide conversion had used the new-style ones ("GPL-2.0-only" and
"GPL-2.0-or-later").
In these cases I picked the new-style one.
In a few cases, the SPDX conversion was actually different, though. As
explained by James above, and in more detail in a pre-pull-request
thread:
"The other problem is actually substantive: In the libsas code Luben
Tuikov originally specified gpl 2.0 only by dint of stating:
* This file is licensed under GPLv2.
In all the libsas files, but then muddied the water by quoting GPLv2
verbatim (which includes the or later than language). So for these
files Christoph did the conversion to v2 only SPDX tags and Thomas
converted to v2 or later tags"
So in those cases, where the spdx tag substantially mattered, I took the
SCSI tree conversion of it, but then also took the opportunity to turn
the old-style "GPL-2.0" into a new-style "GPL-2.0-only" tag.
Similarly, when there were whitespace differences or other differences
to the comments around the copyright notices, I took the version from
the SCSI tree as being the more specific conversion.
Finally, in the spdx conversions that had no conflicts (because the
treewide ones hadn't been done for those files), I just took the SCSI
tree version as-is, even if it was old-style. The old-style conversions
are perfectly valid, even if the "-only" and "-or-later" versions are
perhaps more descriptive.
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (185 commits)
scsi: qla2xxx: move IO flush to the front of NVME rport unregistration
scsi: qla2xxx: Fix NVME cmd and LS cmd timeout race condition
scsi: qla2xxx: on session delete, return nvme cmd
scsi: qla2xxx: Fix kernel crash after disconnecting NVMe devices
scsi: megaraid_sas: Update driver version to 07.710.06.00-rc1
scsi: megaraid_sas: Introduce various Aero performance modes
scsi: megaraid_sas: Use high IOPS queues based on IO workload
scsi: megaraid_sas: Set affinity for high IOPS reply queues
scsi: megaraid_sas: Enable coalescing for high IOPS queues
scsi: megaraid_sas: Add support for High IOPS queues
scsi: megaraid_sas: Add support for MPI toolbox commands
scsi: megaraid_sas: Offload Aero RAID5/6 division calculations to driver
scsi: megaraid_sas: RAID1 PCI bandwidth limit algorithm is applicable for only Ventura
scsi: megaraid_sas: megaraid_sas: Add check for count returned by HOST_DEVICE_LIST DCMD
scsi: megaraid_sas: Handle sequence JBOD map failure at driver level
scsi: megaraid_sas: Don't send FPIO to RL Bypass queue
scsi: megaraid_sas: In probe context, retry IOC INIT once if firmware is in fault
scsi: megaraid_sas: Release Mutex lock before OCR in case of DCMD timeout
scsi: megaraid_sas: Call disable_irq from process IRQ poll
scsi: megaraid_sas: Remove few debug counters from IO path
...
105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* ------------------------------------------------------------
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* ibmvscsi.h
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* (C) Copyright IBM Corporation 1994, 2003
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* Authors: Colin DeVilbiss (devilbis@us.ibm.com)
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* Santiago Leon (santil@us.ibm.com)
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* Dave Boutcher (sleddog@us.ibm.com)
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*
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* ------------------------------------------------------------
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* Emulation of a SCSI host adapter for Virtual I/O devices
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*
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* This driver allows the Linux SCSI peripheral drivers to directly
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* access devices in the hosting partition, either on an iSeries
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* hypervisor system or a converged hypervisor system.
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*/
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#ifndef IBMVSCSI_H
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#define IBMVSCSI_H
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/completion.h>
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#include <linux/interrupt.h>
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#include <scsi/viosrp.h>
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struct scsi_cmnd;
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struct Scsi_Host;
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/* Number of indirect bufs...the list of these has to fit in the
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* additional data of the srp_cmd struct along with the indirect
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* descriptor
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*/
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#define MAX_INDIRECT_BUFS 10
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#define IBMVSCSI_MAX_REQUESTS_DEFAULT 100
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#define IBMVSCSI_CMDS_PER_LUN_DEFAULT 16
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#define IBMVSCSI_MAX_SECTORS_DEFAULT 256 /* 32 * 8 = default max I/O 32 pages */
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#define IBMVSCSI_MAX_CMDS_PER_LUN 64
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#define IBMVSCSI_MAX_LUN 32
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/* ------------------------------------------------------------
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* Data Structures
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*/
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/* an RPA command/response transport queue */
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struct crq_queue {
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struct viosrp_crq *msgs;
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int size, cur;
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dma_addr_t msg_token;
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spinlock_t lock;
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};
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/* a unit of work for the hosting partition */
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struct srp_event_struct {
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union viosrp_iu *xfer_iu;
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struct scsi_cmnd *cmnd;
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struct list_head list;
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void (*done) (struct srp_event_struct *);
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struct viosrp_crq crq;
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struct ibmvscsi_host_data *hostdata;
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atomic_t free;
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union viosrp_iu iu;
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void (*cmnd_done) (struct scsi_cmnd *);
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struct completion comp;
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struct timer_list timer;
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union viosrp_iu *sync_srp;
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struct srp_direct_buf *ext_list;
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dma_addr_t ext_list_token;
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};
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/* a pool of event structs for use */
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struct event_pool {
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struct srp_event_struct *events;
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u32 size;
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int next;
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union viosrp_iu *iu_storage;
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dma_addr_t iu_token;
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};
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enum ibmvscsi_host_action {
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IBMVSCSI_HOST_ACTION_NONE = 0,
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IBMVSCSI_HOST_ACTION_RESET,
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IBMVSCSI_HOST_ACTION_REENABLE,
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IBMVSCSI_HOST_ACTION_UNBLOCK,
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};
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/* all driver data associated with a host adapter */
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struct ibmvscsi_host_data {
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struct list_head host_list;
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atomic_t request_limit;
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int client_migrated;
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enum ibmvscsi_host_action action;
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struct device *dev;
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struct event_pool pool;
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struct crq_queue queue;
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struct tasklet_struct srp_task;
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struct list_head sent;
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struct Scsi_Host *host;
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struct task_struct *work_thread;
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wait_queue_head_t work_wait_q;
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struct mad_adapter_info_data madapter_info;
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struct capabilities caps;
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dma_addr_t caps_addr;
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dma_addr_t adapter_info_addr;
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};
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#endif /* IBMVSCSI_H */
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