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Currently in the driver the qedf_ctx attribute vlan_hw_insert is used to
which whether to insert a VLAN tag in FIP frames (except for FIP VLAN
request which is explicitly sent out untagged at least from the driver's
point of view).
When we receive a FIP VLAN response, we set qedf->vlan_hw_insert to 0 which
makes the qedf_fip_send function insert the VLAN. However when we exhaust
our FIP VLAN retries, we do not set qedf->vlan_hw_insert to 0 which means
that the driver will not tag the FIP frame with the correct VLAN ID. The
result that was observed on the wire is that some entity either in the LL2
or L2 firmware is adding a NULL VLAN tag which can cause FIP solicitation
to fail.
The offload FCoE frame function, qedf_xmit, does not use the vlan_hw_insert
attribute to decide whether to tag frames with the FIP/FCoE VLAN. Instead
it unilaterially tags the offload frames with the VLAN ID stored in
qedf->vlan_id. This is the correct behavior so the driver can guarantee
that non-offload FIP frames go out with the correct VLAN ID.
Also use the Linux network layer helpers instead of doing the VLAN insert
manually.
Also fix setting the fallback VLAN so that it used the module parameter and
is not hardcoded to 1002 (though 1002 is the default).
[mkp: fixed typo]
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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is available.
Currently in the driver we've been using the fc_fcoe_set_mac() function to
set the source MAC for FCoE traffic. This works well in most cases as it
uses the spec. default FCF-MAC. However, if the administrator changes the
FCF-MAC switch, then any FCoE traffic we send will be dropped by the
switch.
Instead we should check the granted MAC from the FLOGI payload and use that
address if it is present. Otherwise, fall back to using the the default
FCF-MAC and the fabric ID of the port as the FCoE MAC address.
Once this address is known we need to set it when doing non-offload
traffic, offload traffic and setting the data_src_address libfcoe uses for
FIP keep alive messages.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Pull SCSI updates from James Bottomley:
"This is mostly updates of the usual suspects: lpfc, qla2xxx, bnx2fc,
qedf, hpsa, hisi_sas, smartpqi, cxlflash, aacraid, csiostor along with
a host of minor and miscellaneous changes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (276 commits)
qla2xxx: Fix NVMe entry_type for iocb packet on BE system
scsi: qla2xxx: avoid unused-function warning
scsi: snic: fix a couple of spelling mistakes/typos
scsi: qla2xxx: fix a bunch of typos and spelling mistakes
scsi: lpfc: don't double count abort errors
scsi: lpfc: spin_lock_irq() is not nestable
scsi: hisi_sas: optimise DMA slot memory
scsi: ibmvfc: constify dev_pm_ops structures.
scsi: ibmvscsi: constify dev_pm_ops structures.
scsi: cxlflash: Update debug prints in reset handlers
scsi: cxlflash: Update send_tmf() parameters
scsi: cxlflash: Avoid double free of character device
scsi: Add STARGET_CREATED_REMOVE state to scsi_target_state
scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails.
scsi: ufs: flush eh_work when eh_work scheduled.
scsi: qla2xxx: Protect access to qpair members with qpair->qp_lock
scsi: sun_esp: fix device reference leaks
scsi: fnic: changing queue command to return result DID_IMM_RETRY when rport is init
scsi: fnic: correct speed display and add support for 25,40 and 100G
scsi: fnic: added timestamp reporting in fnic debug stats
...
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It seems like a historic accident that these return unsigned char *,
and in many places that means casts are required, more often than not.
Make these functions return void * and remove all the casts across
the tree, adding a (u8 *) cast only where the unsigned char pointer
was used directly, all done with the following spatch:
@@
expression SKB, LEN;
typedef u8;
identifier fn = { skb_push, __skb_push, skb_push_rcsum };
@@
- *(fn(SKB, LEN))
+ *(u8 *)fn(SKB, LEN)
@@
expression E, SKB, LEN;
identifier fn = { skb_push, __skb_push, skb_push_rcsum };
type T;
@@
- E = ((T *)(fn(SKB, LEN)))
+ E = fn(SKB, LEN)
@@
expression SKB, LEN;
identifier fn = { skb_push, __skb_push, skb_push_rcsum };
@@
- fn(SKB, LEN)[0]
+ *(u8 *)fn(SKB, LEN)
Note that the last part there converts from push(...)[0] to the
more idiomatic *(u8 *)push(...).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If there are multiple descriptors for a particular type in a clear virtual
link we receive, we will not process it correctly but rather take the last
value. This can cause us not to not flap the virtual link as the value from
the descriptors that we compare against the our stored FCF or fc_lport values
may not match.
Change this to do a comparison when processing the each descriptor instead of at
the end and then set a bool if we need to do the reset.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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We need to initialize qedf->fipvlan_compl in __qedf_probe so that if we
receive an unsolicited FIP VLAN response, the system doesn't crash due
to trying to complete an uninitialized completion.
Also add a check to see if there are any waiters on the completion so we
don't inadvertantly kick start the discovery process due to the
unsolicited frame.
Fixed the crash:
<1>BUG: unable to handle kernel NULL pointer dereference at (null)
<1>IP: [<ffffffff8105ed71>] __wake_up_common+0x31/0x90
<4>PGD 0
<4>Oops: 0000 [#1] SMP
<4>last sysfs file: /sys/devices/system/cpu/online
<4>CPU 7
<4>Modules linked in: autofs4 nfs lockd fscache auth_rpcgss nfs_acl sunrpc target_core_iblock target_core_file target_core_pscsi target_core_mod configfs bnx2fc cnic fcoe 8021q garp stp llc ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 vfat fat uinput ipmi_devintf microcode power_meter acpi_ipmi ipmi_si ipmi_msghandler iTCO_wdt iTCO_vendor_support dcdbas sg joydev sb_edac edac_core lpc_ich mfd_core shpchp tg3 ptp pps_core ext4 jbd2 mbcache sr_mod cdrom sd_mod crc_t10dif qedi(U) iscsi_boot_sysfs libiscsi scsi_transport_iscsi uio qedf(U) libfcoe libfc scsi_transport_fc scsi_tgt qede(U) qed(U) ahci megaraid_sas wmi dm_mirror dm_region_hash dm_log dm_mod [last unloaded: speedstep_lib]
<4>
<4>Pid: 1485, comm: qedf_11_ll2 Not tainted 2.6.32-642.el6.x86_64 #1 Dell Inc. PowerEdge R730/0599V5
<4>RIP: 0010:[<ffffffff8105ed71>] [<ffffffff8105ed71>] __wake_up_common+0x31/0x90
<4>RSP: 0018:ffff881068a83d50 EFLAGS: 00010086
<4>RAX: ffffffffffffffe8 RBX: ffff88106bf42de0 RCX: 0000000000000000
<4>RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff88106bf42de0
<4>RBP: ffff881068a83d90 R08: 0000000000000000 R09: 00000000fffffffe
<4>R10: 0000000000000000 R11: 000000000000000b R12: 0000000000000286
<4>R13: ffff88106bf42de8 R14: 0000000000000000 R15: 0000000000000000
<4>FS: 0000000000000000(0000) GS:ffff88089c460000(0000) knlGS:0000000000000000
<4>CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
<4>CR2: 0000000000000000 CR3: 0000000001a8d000 CR4: 00000000001407e0
<4>DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
<4>Process qedf_11_ll2 (pid: 1485, threadinfo ffff881068a80000, task ffff881068a70040)
<4>Stack:
<4> ffff88106ef00090 0000000300000001 ffff881068a83d90 ffff88106bf42de0
<4><d> 0000000000000286 ffff88106bf42dd8 ffff88106bf40a50 0000000000000002
<4><d> ffff881068a83dc0 ffffffff810634c7 ffff881000000003 000000000000000b
<4>Call Trace:
<4> [<ffffffff810634c7>] complete+0x47/0x60
<4> [<ffffffffa01d37e7>] qedf_fip_recv+0x1c7/0x450 [qedf]
<4> [<ffffffffa01cb3cb>] qedf_ll2_recv_thread+0x33b/0x510 [qedf]
<4> [<ffffffffa01cb090>] ? qedf_ll2_recv_thread+0x0/0x510 [qedf]
<4> [<ffffffff810a662e>] kthread+0x9e/0xc0
<4> [<ffffffff8100c28a>] child_rip+0xa/0x20
<4> [<ffffffff810a6590>] ? kthread+0x0/0xc0
<4> [<ffffffff8100c280>] ? child_rip+0x0/0x20
<4>Code: 41 56 41 55 41 54 53 48 83 ec 18 0f 1f 44 00 00 89 75 cc 89 55 c8 4c 8d 6f 08 48 8b 57 08 41 89 cf 4d 89 c6 48 8d 42 e8 49 39 d5 <48> 8b 58 18 74 3f 48 83 eb 18 eb 0a 0f 1f 00 48 89 d8 48 8d 5a
<1>RIP [<ffffffff8105ed71>] __wake_up_common+0x31/0x90
<4> RSP <ffff881068a83d50>
<4>CR2: 0000000000000000
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Add __printf compiler verification of format and arguments. Fix
fallout.
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The QLogic FastLinQ Driver for FCoE (qedf) is the FCoE specific module
for 41000 Series Converged Network Adapters by QLogic. This patch
consists of following changes:
- MAINTAINERS Makefile and Kconfig changes for qedf
- PCI driver registration
- libfc/fcoe host level initialization
- SCSI host template initialization and callbacks
- Debugfs and log level infrastructure
- Link handling
- Firmware interface structures
- QED core module initialization
- Light L2 interface callbacks
- I/O request initialization
- Firmware I/O completion handling
- Firmware ELS request/response handling
- FIP request/response handled by the driver itself
Signed-off-by: Nilesh Javali <nilesh.javali@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Arun Easi <arun.easi@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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