Commit Graph

130 Commits

Author SHA1 Message Date
Bhanu Prakash Gollapudi 6c5a7ce4f1 [SCSI] bnx2fc: Support 'sequence cleanup' task
For the devices that support sequence level error recovery, based on the REC
response, the firmware has to be informed about the offset from which the
retransmission should happen. Driver initiates sequence cleanup task to
firmware so that the firmware can program the task. Upon the sequence cleanup
completion, SRR is issued to retransmit the sequence.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-28 11:42:57 +04:00
Bhanu Prakash Gollapudi b252f4c7c3 [SCSI] bnx2fc: Enable REC & CONF support for the session
Based on PRLI response, identify if the target is FCP-2 (seq level error
recovery) capable, and appropriately set the corresponding CONF, REC flags when
offloading the session.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 15:38:12 +04:00
Bhanu Prakash Gollapudi aea71a0249 [SCSI] bnx2fc: Introduce interface structure for each vlan interface
Currently, bnx2fc has a hba structure that can work with only a single vlan
interface.  When there is a change in vlan id, it does not have the capability
to switch to different vlan interface. To solve this problem, a new structure
called 'interface' has been introduced, and each hba can now have multiple
interfaces, one per vlan id.

Most of the patch is a moving the interface specific fields from hba to the
interface structure, and appropriately modifying the dereferences. A list of
interfaces (if_list) is maintained along with adapter list. During a create
call, the interface structure is allocated and added to if_list and deleted &
freed on a destroy call.  Link events are propagated to all interfaces
belonging to the hba.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 15:37:31 +04:00
Bhanu Prakash Gollapudi b2a554ff9a [SCSI] bnx2fc: Replace printks with KERN_ALERT to KERN_ERR/KERN_INFO
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-26 13:54:41 +04:00
Linus Torvalds d4e06701b8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (77 commits)
  [SCSI] fix crash in scsi_dispatch_cmd()
  [SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise
  [SCSI] bnx2i: Fixed kernel panic due to illegal usage of sc->request->cpu
  [SCSI] bfa: Update the driver version to 3.0.2.1
  [SCSI] bfa: Driver and BSG enhancements.
  [SCSI] bfa: Added support to query PHY.
  [SCSI] bfa: Added HBA diagnostics support.
  [SCSI] bfa: Added support for flash configuration
  [SCSI] bfa: Added support to obtain SFP info.
  [SCSI] bfa: Added support for CEE info and stats query.
  [SCSI] bfa: Extend BSG interface.
  [SCSI] bfa: FCS bug fixes.
  [SCSI] bfa: DMA memory allocation enhancement.
  [SCSI] bfa: Brocade-1860 Fabric Adapter vHBA support.
  [SCSI] bfa: Brocade-1860 Fabric Adapter PLL init fixes.
  [SCSI] bfa: Added Fabric Assigned Address(FAA) support
  [SCSI] bfa: IOC bug fixes.
  [SCSI] bfa: Enable ASIC block configuration and query.
  [SCSI] bnx2i: Updated copyright and bump version
  [SCSI] bnx2i: Modified to skip CNIC registration if iSCSI is not supported
  ...

Fix up some trivial conflicts in:
 - drivers/scsi/bnx2fc/{bnx2fc.h,bnx2fc_fcoe.c}:
	Crazy broadcom version number conflicts
 - drivers/target/tcm_fc/tfc_cmd.c
	Just trivial cleanups done on adjacent lines
2011-07-23 11:13:11 -07:00
Michael Chan 415199f2bd cnic: Add VLAN ID as a parameter during netevent upcall
The bnx2fc driver needs to handle netdev events on VLAN devices.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-21 12:38:32 -07:00
Bhanu Prakash Gollapudi 2382d2364a [SCSI] bnx2fc: Bumped version to 1.0.2
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 11:13:27 -05:00
Bhanu Prakash Gollapudi d36b3279e1 [SCSI] bnx2fc: Fix kernel panic when deleting NPIV ports
Deleting NPIV port causes a kernel panic when the NPIV port is in the same zone
as the physical port and shares the same LUN. This happens due to the fact that
vport destroy and unsolicited ELS are scheduled to run on the same workqueue,
and vport destroy destroys the lport and the unsolicited ELS tries to access
the invalid lport.  This patch fixes this issue by maintaining a list of valid
lports and verifying if the lport is valid or not before accessing it.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 11:02:09 -05:00
Bhanu Prakash Gollapudi b5a95fe7ef [SCSI] bnx2fc: scsi_dma_unmap() not invoked on IO completions
Do not set io_req->sc_cmd to NULL until bnx2fc_unmap_sg_list() is called to
enable it to unmap the DMA mappings.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 10:58:04 -05:00
Bhanu Prakash Gollapudi a4dc08cecf [SCSI] bnx2fc: host stats show the link speed 'unknown' on NIC partitioned interfaces
NIC partitioned interfaces reports the speed of 2500 which was not handled by
the driver.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-06-29 10:49:26 -05:00
Vlad Zolotarov 619c5cb688 New 7.0 FW: bnx2x, cnic, bnx2i, bnx2fc
New FW/HSI (7.0):
 - Added support to 578xx chips
 - Improved HSI - much less driver's direct access to the FW internal
   memory needed.

New implementation of the HSI handling layer in the bnx2x (bnx2x_sp.c):
 - Introduced chip dependent objects that have chip independent interfaces
   for configuration of MACs, multicast addresses, Rx mode, indirection table,
   fast path queues and function initialization/cleanup.
 - Objects functionality is based on the private function pointers, which
   allows not only a per-chip but also PF/VF differentiation while still
   preserving the same interface towards the driver.
 - Objects interface is not influenced by the HSI changes which do not require
   providing new parameters keeping the code outside the bnx2x_sp.c invariant
   with regard to such HSI chnages.

Changes in a CNIC, bnx2fc and bnx2i modules due to the new HSI.

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@conan.davemloft.net>
2011-06-15 10:56:37 -04:00
Linus Torvalds 06f4e926d2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits)
  macvlan: fix panic if lowerdev in a bond
  tg3: Add braces around 5906 workaround.
  tg3: Fix NETIF_F_LOOPBACK error
  macvlan: remove one synchronize_rcu() call
  networking: NET_CLS_ROUTE4 depends on INET
  irda: Fix error propagation in ircomm_lmp_connect_response()
  irda: Kill set but unused variable 'bytes' in irlan_check_command_param()
  irda: Kill set but unused variable 'clen' in ircomm_connect_indication()
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport()
  be2net: Kill set but unused variable 'req' in lancer_fw_download()
  irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication()
  atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined.
  rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer().
  rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection()
  rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window()
  pkt_sched: Kill set but unused variable 'protocol' in tc_classify()
  isdn: capi: Use pr_debug() instead of ifdefs.
  tg3: Update version to 3.119
  tg3: Apply rx_discards fix to 5719/5720
  ...

Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c
as per Davem.
2011-05-20 13:43:21 -07:00
Vasu Dev 134a4e27a2 [SCSI] bnx2fc: setup em for npiv port
Use fc_exch_mgr_list_clone to setup em for npiv port.

Also remove redundant vport and lport initializations.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 16:19:48 -05:00
Nithin Nayak Sujir befc9b4dda [SCSI] bnx2fc: increase cleanup wait time
FW may take more time cleaning up IOs issued to multiple targets.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:53:17 -05:00
Nithin Nayak Sujir 068bdce412 [SCSI] bnx2fc: Do not use HBA_DBG macro when lport is not available
Use MISC_DBG instead.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:52:57 -05:00
Nithin Nayak Sujir 35dd71ae82 [SCSI] bnx2fc: call scsi_done if session goes to not ready from ready
If the session is not ready yet, we ask the SCSI-ml to retry. However, if the
session is just uploaded, we should not retry, but instead call scsi_done to
fail the IO.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:52:38 -05:00
Nithin Nayak Sujir 0117ddb0c8 [SCSI] bnx2fc: Release the reference to hba only after the interface is destroyed
Prematurely decrementing the reference may lead to cmd_mgr becoming NULL with
the cmds are still active.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 11:52:18 -05:00
Julia Lawall 5c2dce26fd [SCSI] bnx2fc: introduce missing kfree
Error handling code following a kmalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@

x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
     when != if (...) { <+...x...+> }
(
x->f1 = E
|
 (x->f1 == NULL || ...)
|
 f(...,x->f1,...)
)
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:18:31 -05:00
David Decotigny 8ae6daca85 ethtool: Call ethtool's get/set_settings callbacks with cleaned data
This makes sure that when a driver calls the ethtool's
get/set_settings() callback of another driver, the data passed to it
is clean. This guarantees that speed_hi will be zeroed correctly if
the called callback doesn't explicitely set it: we are sure we don't
get a corrupted speed from the underlying driver. We also take care of
setting the cmd field appropriately (ETHTOOL_GSET/SSET).

This applies to dev_ethtool_get_settings(), which now makes sure it
sets up that ethtool command parameter correctly before passing it to
drivers. This also means that whoever calls dev_ethtool_get_settings()
does not have to clean the ethtool command parameter. This function
also becomes an exported symbol instead of an inline.

All drivers visible to make allyesconfig under x86_64 have been
updated.

Signed-off-by: David Decotigny <decot@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29 14:01:30 -07:00
Lucas De Marchi 25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Bhanu Gollapudi fee787129d [SCSI] bnx2fc: IO completion not processed due to missed wakeup
Driver does not detect a new CQE (completion queue entry) if a thread receives
the wakup when it is in TASK_RUNNING state. Fix is to set the state to
TASK_INTERRUPTIBLE while holding the fp_work_lock.

Also, Use __set_current_task() since it is now set inside a spinlock with
synchronization.

Two other related optimizations:

1.  After we exit the while (!kthread_should_stop()) loop, use
__set_current_state() since synchronization is no longer needed.

2.  Remove set_current_state(TASK_RUNNING) after schedule() since it
should always be TASK_RUNNING after schedule().

Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 12:53:06 -05:00
Nithin Sujir d9f7f37b90 [SCSI] bnx2fc: Bump version to 1.0.1
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:37:09 -05:00
Bhanu Gollapudi c94460fd29 [SCSI] bnx2fc: Remove unnecessary module state checks
The check for module state MODULE_STATE_LIVE is no longer required for LLDs, as
libfcoe transport takes care of it. Reference:
http://marc.info/?l=linux-scsi&m=129989565903046&w=2

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:37:07 -05:00
Bhanu Gollapudi 1294bfe609 [SCSI] bnx2fc: Fix MTU issue by using static MTU
bnx2x now uses seperate MTUs for networking and FCoE. FCoE MTU is fixed to 2500
and bnx2fc now needs to match this logic by using FCOE_MTU instead of
netdev->mtu.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:37:04 -05:00
Michael Chan 26ce67c3df [SCSI] bnx2fc: Remove network bonding checking
bnx2fc only operates on bnx2x hardware devices and not master bonding
devices, so there is no need to check for bonding.  Even if the bnx2x
device is "enslaved" into a bonding device, FCoE is unaffected as it
has its own MAC address and queues.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:37:03 -05:00
Nithin Sujir 686959736a [SCSI] bnx2fc: Call bnx2fc_return_rqe and bnx2fc_get_next_rqe with tgt lock held
tgt lock is needed during -
        bnx2fc_return_rqe to protect the rq_prod_idx.
        bnx2fc_get_next_rqe to protect rq_cons_idx

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:37:02 -05:00
Bhanu Gollapudi 0ea5c27583 [SCSI] bnx2fc: common free list for cleanup commands
Cleanup commands are issued to the firmware to cleanup any stuck ios
that are supposed to be implicitly aborted. In the worst case we can
have all scsi ios filling up the free_list and we may not be able to
allocate cleanup tasks. So the driver has to reserve free_list entries
to be able to allocate the cleanup tasks. This reserve free_list common
to all cpus is allocated as one additional entry in the per cpu
free_lists.

In bnx2fc_cmd_alloc(), there is a related fix to use get_cpu() for the
free_list_index.  This will prevent using the wrong index if the CPU
is preempted.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:37:01 -05:00
Nithin Sujir 6702ca1dff [SCSI] bnx2fc: Remove rtnl_trylock/restart_syscall checks
Call rtnl_lock instead of rtnl_trylock & restart_syscall. This is bnx2fc
counterpart of fcoe fixes, here is the reference:
https://lists.open-fcoe.org/pipermail/devel/2011-March/011199.html

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:37:00 -05:00
Bhanu Gollapudi 839900c69d [SCSI] bnx2fc: Avoid holding cq_lock when iounmap() is called
With kernel debugging enabled, holding cq_lock when calling
bnx2fc_free_session_resc() which calls iounmap() leads to a warning
stack trace [INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected].
iounmap() grabs a HARDIRQ-unsafe vmlist lock, so holding
spin_lock_bh(cq_lock) when calling iounmap() will trigger the LOCKDEP
warning.  Since cq_lock is required only to guard against deletion, hold
the lock just before freeing the cq.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-03-23 11:36:59 -05:00
Bhanu Gollapudi 853e2bd210 [SCSI] bnx2fc: Broadcom FCoE offload driver
This driver is for Broadcom Netxtreme II 57712 chip. The following
patch contains the driver sources for bnx2fc driver.  libfc/libfcoe
changes to enable bnx2fc have already gone through the fcoe
tree. bnx2fc is a SCSI low level driver that interfaces with SCSI
midlayer, libfc, libfcoe, cnic modules.  bnx2fc driver uses services
of libfc for slow path operations such as FIP and fabric
discovery. The fast path IO perations are performed after offloading
the session information to the underlying FCoE firmware.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 18:40:27 -06:00