Commit Graph

21 Commits

Author SHA1 Message Date
Anil Veerabhadrappa
45ca38e753 [SCSI] bnx2i: minor code cleanup and update driver version
Removed duplicate function call and not-so-useful comment line

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-10 09:45:58 -06:00
Anil Veerabhadrappa
85fef20222 [SCSI] bnx2i: Task management ABORT TASK fixes
Due to typo error driver was failing TMF Abort Task request when
ctask->sc != NULL. Fixed code to fail TMF ABORT Task request only when
ctask->sc == NULL.  Clear age component (19 most significant bits) of
reference ITT carried in iSCSI TMF PDU. Age component is internal to
initiator side and only lower bits of ITT as defined by ISCSI_ITT_MASK
is is sent on wire.  Retrieve LUN directly from the ref_sc and update
SQ wqe as per chip HSI (Host Software Interface) specification

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-10 09:45:57 -06:00
Anil Veerabhadrappa
8776193bc3 [SCSI] bnx2i: update CQ arming algorith for 5771x chipsets
Only affects 5771x (10G chipsets) devices

This is an optimized CQ arming algoritm which takes into account the
number of outstanding tasks

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-10 09:45:57 -06:00
Anil Veerabhadrappa
f8c9abe797 [SCSI] bnx2i: Adjust sq_size module parametr to power of 2 only if a non-zero value is specified
This issue was discovered during 10G iscsi testing

Default value of 'sq_size' module parameter is '0' which means driver
should use predefined SQ queue size when setting up iscsi connection.

roundup_pow_of_two(0) results in '1' and forces driver to setup
connections with send queue size of '1' and results in lower
performance as well

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-10 09:45:56 -06:00
Anil Veerabhadrappa
5d9e1fa99c [SCSI] bnx2i: Add 5771E device support to bnx2i driver
Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-10 09:45:55 -06:00
Linus Torvalds
4ef58d4e2a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (42 commits)
  tree-wide: fix misspelling of "definition" in comments
  reiserfs: fix misspelling of "journaled"
  doc: Fix a typo in slub.txt.
  inotify: remove superfluous return code check
  hdlc: spelling fix in find_pvc() comment
  doc: fix regulator docs cut-and-pasteism
  mtd: Fix comment in Kconfig
  doc: Fix IRQ chip docs
  tree-wide: fix assorted typos all over the place
  drivers/ata/libata-sff.c: comment spelling fixes
  fix typos/grammos in Documentation/edac.txt
  sysctl: add missing comments
  fs/debugfs/inode.c: fix comment typos
  sgivwfb: Make use of ARRAY_SIZE.
  sky2: fix sky2_link_down copy/paste comment error
  tree-wide: fix typos "couter" -> "counter"
  tree-wide: fix typos "offest" -> "offset"
  fix kerneldoc for set_irq_msi()
  spidev: fix double "of of" in comment
  comment typo fix: sybsystem -> subsystem
  ...
2009-12-09 19:43:33 -08:00
Mike Christie
3fe5ae8b4c [SCSI] libiscsi: add warm target reset tmf support
This implements warm target reset tmf support for
the scsi-ml target reset callback. Previously we would
just drop the session in that callback. This patch will
now try a target reset and if that fails drop the session.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04 12:01:36 -06:00
Mike Christie
24246de775 [SCSI] bnx2i: use common iscsi suspend queue
This just has bnx2i use the iscsi_suspend_queue helper.

The suspend works as follows:

When ep_poll has succeeed iscsid will call conn_bind, the LLD will
then call iscsi_conn_bind which will clear the suspend bit.
When ep_disconnect is called (or if there is a conn error) we set
the suspend bit. For the ep_disconnect case I  added a helper
in the previous kernel that will take the session lock to make sure
iscsi_queuecommand/xmit_task is not running and it will set
the suspend bit.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-12-04 12:01:35 -06:00
Thadeu Lima de Souza Cascardo
94e2bd6888 tree-wide: fix some typos and punctuation in comments
fix some typos and punctuation in comments

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 15:39:48 +01:00
Jayamohan Kallickal
b8b9e1b812 [SCSI] libiscsi: iscsi_session_setup to allow for private space
This patch contains changes that allow iscsi_session_setup
to allocate private space for LLD's

Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02 14:01:39 -05:00
Anil Veerabhadrappa
53203244a4 [SCSI] bnx2i: Fix context mapping issue for architectures with PAGE_SIZE != 4096
5706/5708/5709 devices allow driver/user to set page size. By default it is
set to 4096.  Current drivers do not program this register based on
architecture type (e.g. x86 = 4K, IA64 = 16K) and by choice lets device use
the defaults. So while mapping connection context memory (doorebll registers),
driver has to match page size used by the device. Included change fixes the
issue we uncovered during IA64 testing

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-10-02 09:45:34 -05:00
Joe Perches
a419aef8b8 trivial: remove unnecessary semicolons
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-09-21 15:14:58 +02:00
Anil Veerabhadrappa
c19dcd0112 [SCSI] bnx2i : Fix "cid #n not valid" issue
When bnx2i_adapter_ready() fails, connection handle(cid) = 0 is wrongly freed
because 'cid' is not yet allocated for the endpoint.  Fix is to initialize
bnx2i_ep->ep_iscsi_cid to '-1' in bnx2i_alloc_ep() and not in
bnx2i_ep_connect() to avoid releasing invalid 'cid'.  There is already a check
in bnx2i_free_iscsi_cid() not to free invalid iscsi connection handle (-1)

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:52:12 -05:00
Anil Veerabhadrappa
534cc9c165 [SCSI] bnx2i : Fix command session number jump issue seen during cable pull test
Without the fix bnx2i would fail tt->xmit_task() when link is down and
libiscsi would have already incremented session->cmdsn before calling bnx2i's
xmit_task() entry point and will just return the command to SCSI-ML when
xmit_task() fails. libiscsi does not retract the session->cmdsn as the command
was never sent on wire.  It is generally good idea for LLD, bnx2i to accept
the scsi cmnd/nopout and let upper layer timeout and go though normal session
recovery process.  When link is down, unsolicited nopout will not be accepted
by bnx2i and connection will never enter recovery state. This fix is required
for MPIO to work corectly

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:52:11 -05:00
Anil Veerabhadrappa
fac3cc458f [SCSI] bnx2i: register given device with cnic if shost != NULL in ep_connect()
When using iface, bnx2i was unable to offload further connections after all
active sessions are logged out. bnx2i will unregister the device from cnic
when the last connection is torn down. Next call to ep_connect() will fail
because the device is not registered. This issue is not seen if shost == NULL
is passed to ep_connect() call because in that case bnx2i will registers all
known devices with cnic before doing a route look-up.  When shost != NULL,
bnx2i knows the device on which to offload the connection and has to register
this device before attempting to offload the connection

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:51:54 -05:00
Anil Veerabhadrappa
3be924fb1d [SCSI] bnx2i: convert bnx2i_dev_lock to mutex
convert bnx2i_dev_lock to type mutex from rwlock_t because
cnic->register_device() can sleep for various reasons including memory
allocation, waiting for ISCSI_INIT completion and while acquiring mutex lock,
cnic_lock.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:51:53 -05:00
Anil Veerabhadrappa
4e85f15166 [SCSI] bnx2i: bug fixes in bnx2i_init_one to handle error conditions
Fixed bnx2i_init_one() to properly handle return code of
cnic->register_device() and propagate it back to the caller.  No need to check
for BNX2I_CNIC_REGISTERED, because unless the adapter is added to adapter_list
it will not be registered in ep_connect context

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:51:52 -05:00
Anil Veerabhadrappa
1ed0f6a3ef [SCSI] bnx2i: remove global variable bnx2i_reg_devices
Removed bnx2i_reg_devices as this counter is not really
used in a meaningful way

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-08-22 17:51:51 -05:00
Randy Dunlap
895553824e cnic: add NETDEV_1000 and NETDEVICES to Kconfig select
NETDEVICES + NETDEV_1000 need to be enabled so that kconfig will check
those branches for selects and enforce "select UIO" under CNIC.
Otherwise the build fails with:

ERROR: "uio_unregister_device" [drivers/net/cnic.ko] undefined!
ERROR: "uio_event_notify" [drivers/net/cnic.ko] undefined!
ERROR: "__uio_register_device" [drivers/net/cnic.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-21 11:02:59 -05:00
Michael Chan
babdb788f7 [SCSI] cnic, bnx2i: Fix build failure when CONFIG_PCI is not set.
CNIC and BNX2I must depend on PCI.  Dependencies do not get
propagated through select.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-15 10:09:31 -05:00
Michael Chan
cf4e636385 [SCSI] bnx2i: Add bnx2i iSCSI driver.
New iSCSI driver for Broadcom BNX2 devices.  The driver interfaces with
the CNIC driver to access the hardware.

Signed-off-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-06-09 10:22:45 -05:00