Commit Graph

87 Commits

Author SHA1 Message Date
Luis Chamberlain
750afb08ca cross-tree: phase out dma_zalloc_coherent()
We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.

This change was generated with the following Coccinelle SmPL patch:

@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@

-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-01-08 07:58:37 -05:00
Christoph Hellwig
2a3d4eb8e2 scsi: flip the default on use_clustering
Most SCSI drivers want to enable "clustering", that is merging of
segments so that they might span more than a single page.  Remove the
ENABLE_CLUSTERING define, and require drivers to explicitly set
DISABLE_CLUSTERING to disable this feature.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-18 23:13:12 -05:00
Thomas Meyer
f3e46ac47e scsi: qedf: NULL check before some freeing functions is not needed
NULL check before some freeing functions is not needed.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Acked-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-12-07 21:46:46 -05:00
Christoph Hellwig
332d84f7f6 scsi: qedf: fully convert to the generic DMA API
The driver is currently using an odd mix of legacy PCI DMA API and
generic DMA API calls, switch it over to the generic API entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-10-17 21:58:53 -04:00
Saurav Kashyap
6ac174756d scsi: qedf: Send the driver state to MFW
Need to notify firmware when driver is loaded and unloaded.

Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-07-10 22:25:23 -04:00
Linus Torvalds
5f85942c2e SCSI misc on 20180610
This is mostly updates to the usual drivers: ufs, qedf, mpt3sas, lpfc,
 xfcp, hisi_sas, cxlflash, qla2xxx.  In the absence of Nic, we're also
 taking target updates which are mostly minor except for the tcmu
 refactor. The only real core change to worry about is the removal of
 high page bouncing (in sas, storvsc and iscsi).  This has been well
 tested and no problems have shown up so far.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.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 updates to the usual drivers: ufs, qedf, mpt3sas, lpfc,
  xfcp, hisi_sas, cxlflash, qla2xxx.

  In the absence of Nic, we're also taking target updates which are
  mostly minor except for the tcmu refactor.

  The only real core change to worry about is the removal of high page
  bouncing (in sas, storvsc and iscsi). This has been well tested and no
  problems have shown up so far"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (268 commits)
  scsi: lpfc: update driver version to 12.0.0.4
  scsi: lpfc: Fix port initialization failure.
  scsi: lpfc: Fix 16gb hbas failing cq create.
  scsi: lpfc: Fix crash in blk_mq layer when executing modprobe -r lpfc
  scsi: lpfc: correct oversubscription of nvme io requests for an adapter
  scsi: lpfc: Fix MDS diagnostics failure (Rx < Tx)
  scsi: hisi_sas: Mark PHY as in reset for nexus reset
  scsi: hisi_sas: Fix return value when get_free_slot() failed
  scsi: hisi_sas: Terminate STP reject quickly for v2 hw
  scsi: hisi_sas: Add v2 hw force PHY function for internal ATA command
  scsi: hisi_sas: Include TMF elements in struct hisi_sas_slot
  scsi: hisi_sas: Try wait commands before before controller reset
  scsi: hisi_sas: Init disks after controller reset
  scsi: hisi_sas: Create a scsi_host_template per HW module
  scsi: hisi_sas: Reset disks when discovered
  scsi: hisi_sas: Add LED feature for v3 hw
  scsi: hisi_sas: Change common allocation mode of device id
  scsi: hisi_sas: change slot index allocation mode
  scsi: hisi_sas: Introduce hisi_sas_phy_set_linkrate()
  scsi: hisi_sas: fix a typo in hisi_sas_task_prep()
  ...
2018-06-10 13:01:12 -07:00
Chad Dupuis
8673daf4f5 qedf: Add get_generic_tlv_data handler.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:54 -04:00
Chad Dupuis
642a0b37e6 qedf: Add support for populating ethernet TLVs.
This patch adds callbacks for providing the ethernet protocol driver TLVs.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-22 23:29:54 -04:00
Chad Dupuis
ab7ad49d01 scsi: qedf: Update version number to 8.33.16.20
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:11 -04:00
Chad Dupuis
5d1c8b5ba0 scsi: qedf: Update copyright for 2018
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:11 -04:00
Chad Dupuis
f3690a89f9 scsi: qedf: Add more defensive checks for concurrent error conditions
During an uplink toggle test all error handling is done via timeout and
firmware error conditions which can occur concurrently:

 - SCSI layer timeouts
 - Error detect CQEs
 - Firmware detected underruns
 - ABTS timeouts

All these concurrent events require more defensive checks in the driver
including:

 - Check both internally and externally generated aborts to make sure the
   xid is not already been aborted in another context or in cleanup.

 - Check back pointers in qedf_cmd_timeout to verify the context of the
   io_req, fcport and qedf_ctx

 - Check rport state in host reset handler to not reset the whole host
   if the rport is already uploaded or in the process of relogin

 - Check to state for an fcport before initiating a middle path ELS
   request

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:11 -04:00
Chad Dupuis
4f4616ceeb scsi: qedf: Set the UNLOADING flag when removing a vport
Similar to what we do when we remove a PCI function, set the
QEDF_UNLOADING flag to prevent any requests from being queued while a
vport is being deleted.  This prevents any requests from getting stuck
in limbo when the vport is unloaded or deleted.

Fixes the crash:

PID: 106676  TASK: ffff9a436aa90000  CPU: 12  COMMAND: "multipathd"
 #0 [ffff9a43567d3550] machine_kexec+522 at ffffffffaca60b2a
 #1 [ffff9a43567d35b0] __crash_kexec+114 at ffffffffacb13512
 #2 [ffff9a43567d3680] crash_kexec+48 at ffffffffacb13600
 #3 [ffff9a43567d3698] oops_end+168 at ffffffffad117768
 #4 [ffff9a43567d36c0] no_context+645 at ffffffffad106f52
 #5 [ffff9a43567d3710] __bad_area_nosemaphore+116 at ffffffffad106fe9
 #6 [ffff9a43567d3760] bad_area+70 at ffffffffad107379
 #7 [ffff9a43567d3788] __do_page_fault+1247 at ffffffffad11a8cf
 #8 [ffff9a43567d37f0] do_page_fault+53 at ffffffffad11a915
 #9 [ffff9a43567d3820] page_fault+40 at ffffffffad116768
    [exception RIP: qedf_init_task+61]
    RIP: ffffffffc0e13c2d  RSP: ffff9a43567d38d0  RFLAGS: 00010046
    RAX: 0000000000000000  RBX: ffffbe920472c738  RCX: ffff9a434fa0e3e8
    RDX: ffff9a434f695280  RSI: ffffbe920472c738  RDI: ffff9a43aa359c80
    RBP: ffff9a43567d3950   R8: 0000000000000c15   R9: ffff9a3fb09b9880
    R10: ffff9a434fa0e3e8  R11: ffff9a43567d35ce  R12: 0000000000000000
    R13: ffff9a434f695280  R14: ffff9a43aa359c80  R15: ffff9a3fb9e005c0
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:11 -04:00
Chad Dupuis
92bbccdf72 scsi: qedf: Add additional checks when restarting an rport due to ABTS timeout
There are a couple of kernel cases when we restart a remote port due to
ABTS timeout that we need to handle:

 1. Flush any outstanding ABTS requests when flushing I/Os so that we do
    not hold up the eh_abort handler indefinitely causing process hangs.

 2. Check if we are currently uploading a connection before issuing an
    ABTS.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:11 -04:00
Chad Dupuis
96673e1e22 scsi: qedf: If qed fails to enable MSI-X fail PCI probe
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:11 -04:00
Chad Dupuis
65b7beca42 scsi: qedf: Honor default_prio module parameter even if DCBX does not converge
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
4b9b7fabb3 scsi: qedf: Improve firmware debug dump handling
Get all firmware debug data instead of just a grc dump.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Saurav Kashyap
f9a4a7f2c0 scsi: qedf: Remove setting DCBX pending during soft context reset
PROBLEM DESCRIPTION:

According to the logs, STAG was changing and it was triggering soft
reset.  In soft reset we used to virtual link down and up and also we
were disabling DCBx flag. Since this was virtual link flap, DCBx never
used to converge again.

SOLUTION:

Code change is to remove disabling DCBx flag from soft reset.

Signed-off-by: Saurav Kashyap <saurav.kashyap@cavium.com>
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
8025c84208 scsi: qedf: Add task id to kref_get_unless_zero() debug messages when flushing requests
Helps to corroborate which requests we can't get reference on and if
it's real bug or not.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
3f9de7f041 scsi: qedf: Check if link is already up when receiving a link up event from qed
[mkp: typo]

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
a8f192bce1 scsi: qedf: Return request as DID_NO_CONNECT if MSI-X is not enabled
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
adf4884252 scsi: qedf: Release RRQ reference correctly when RRQ command times out
When an RRQ request times out the reference is not getting decremented
correctly as there are still ELS commands leftover when we flush any
pending I/Os during offload:

[  281.788553] [0000:21:00.3]:[qedf_cmd_timeout:58]:4: ELS timeout, xid=0x96a.
...
[  281.788553] [0000:21:00.3]:[qedf_cmd_timeout:58]:4: ELS timeout, xid=0x96a.
[  281.788772] [0000:21:00.3]:[qedf_rrq_compl:182]:4: Entered.
[  281.788774] [0000:21:00.3]:[qedf_rrq_compl:200]:4: rrq_compl: orig io = ffffc90004c556f8, orig xid = 0x81b, rrq_xid = 0x96a, refcount=1
...
[  331.448032] [0000:21:00.3]:[qedf_flush_els_req:1512]:4: Flushing ELS request xid=0x96a refcount=2.

The fix is to call kref_put on the rrq_req in case of timeout as the
timeout handler will call rrq_compl directly vs. a normal completion
where it is call from els_compl.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
84b2ba6e42 scsi: qedf: Honor priority from DCBX FCoE App tag
We currently hard code the priority in the 8021q tag to 3 for FCoE
traffic.  The vast majority of the time this is fine but if the priority
is something else besides 3, any VLAN ID comparison either in the
non-offload path or offload path will fail and cause dropped frames
where none are expected.

Change the behavior so that the driver default is 3 if we do not get any
DCBX convergence.

If DCBX does converge, then set the FIP/FCoE priority in the following
manner:

 1. If the qedf_default_prio modparam is set use that
 2. If the DCBX FCoE priority is not in range (0..7) use 3
 3. Use the DCBX FCoE priority we get in the driver's DCBX handler

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
ba17d379c2 scsi: qedf: Add dcbx_not_wait module parameter so we won't wait for DCBX convergence to start discovery
This module parameter is to work around cases where we do not receive
the DCBX handler notification from qed but discovery is still possible
if we send out a FIP VLAN request irregardless of the DCBX state.

[mkp: zeroday warning]

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
a93755cf7e scsi: qedf: Sanity check FCoE/FIP priority value to make sure it's between 0 and 7
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
766639cab0 scsi: qedf: Add check for offload before flushing I/Os for target
We need to check that a fcport is offloaded before we try to flush any
requests.  No doing so could lead to undefined results and most likely a
crash.

Fixes the oops:

[  343.971886] [0000:42:00.3]:[qedf_execute_tmf:2070]:8: wait for tm_cmpl timeout!
[  343.971933] BUG: unable to handle kernel paging request at 00000000000024a8
[  343.971949] IP: [<ffffffffa06b8cc6>] qedf_flush_active_ios+0x46/0x260 [qedf]
[  343.971952] PGD 42c569067 PUD 4160fe067 PMD 0
[  343.971954] Oops: 0000 [#1] SMP
[  343.972008] Modules linked in: qedf(OEX) qed(OEX) bnx2i cnic fuse af_packet iscsi_ibft msr xfs intel_rapl sb_edac edac_core x86_pkg_temp_thermal bnx2x geneve intel_powerclamp vxlan coretemp ipmi_ssif ipmi_devintf kvm_intel kvm libiscsi joydev irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel tg3 ip6_udp_tunnel udp_tunnel mdio libcrc32c iTCO_wdt scsi_transport_iscsi uio drbg iTCO_vendor_support iscsi_boot_sysfs dcdbas(X) ipmi_si ansi_cprng aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper ptp pps_core pcspkr libphy lpc_ich mfd_core cryptd fjes wmi ipmi_msghandler button crc8 libfcoe libfc scsi_transport_fc mei_me mei shpchp processor acpi_pad btrfs xor hid_generic usbhid raid6_pq sd_mod sr_mod cdrom mgag200 crc32c_intel i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt
[  343.972020]  fb_sys_fops ttm ahci ehci_pci libahci ehci_hcd drm libata usbcore megaraid_sas usb_common sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4 [last unloaded: qedf]
[  343.972022] Supported: Yes, External
[  343.972026] CPU: 30 PID: 12777 Comm: sg_reset Tainted: G        W  OE    X 4.4.73-5-default #1
[  343.972027] Hardware name: Dell Inc. PowerEdge R720/0X3D66, BIOS 2.1.3 11/20/2013
[  343.972029] task: ffff88018dfc0e80 ti: ffff88042bd7c000 task.ti: ffff88042bd7c000
[  343.972036] RIP: 0010:[<ffffffffa06b8cc6>]  [<ffffffffa06b8cc6>] qedf_flush_active_ios+0x46/0x260 [qedf]
[  343.972038] RSP: 0018:ffff88042bd7fbe0  EFLAGS: 00010286
[  343.972039] RAX: 0000000000000000 RBX: ffff88042ce37800 RCX: 0000000000000400
[  343.972040] RDX: 000000000000060e RSI: ffffffffa06be830 RDI: ffff8807e5072cc0
[  343.972041] RBP: 0000000000001000 R08: ffffffffa06bff4d R09: ffff88018dd84580
[  343.972042] R10: 000000000000018b R11: 0000000000000002 R12: 0000000000002003
[  343.972043] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8807e5072cc0
[  343.972046] FS:  00007fc1c8809700(0000) GS:ffff88042fbc0000(0000) knlGS:0000000000000000
[  343.972048] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  343.972049] CR2: 00000000000024a8 CR3: 00000004236ec000 CR4: 00000000001406e0
[  343.972050] Stack:
[  343.972053]  504c78750607e154 ffffffff810a7d10 ffff88042ce37800 0000000000000010
[  343.972055]  0000000000002003 ffff8807ff480c48 ffff8807e5072cc0 ffffc90004ec4ff8
[  343.972057]  ffffffffa06b9b86 ffff880800000010 0000000000000282 ffff88042ce37800
[  343.972058] Call Trace:
[  343.972094]  [<ffffffffa06b9b86>] qedf_initiate_tmf+0x346/0x3e0 [qedf]
[  343.972120]  [<ffffffffa000fa06>] scsi_try_bus_device_reset+0x26/0x40 [scsi_mod]
[  343.972133]  [<ffffffffa001038e>] scsi_ioctl_reset+0x13e/0x260 [scsi_mod]
[  343.972145]  [<ffffffffa000f416>] scsi_ioctl+0x136/0x3d0 [scsi_mod]
[  343.972154]  [<ffffffff812ff6eb>] blkdev_ioctl+0x6bb/0x950
[  343.972164]  [<ffffffff8123cfed>] block_ioctl+0x3d/0x40
[  343.972170]  [<ffffffff81217e2d>] do_vfs_ioctl+0x2cd/0x4a0
[  343.972186]  [<ffffffff81218074>] SyS_ioctl+0x74/0x80
[  343.972193]  [<ffffffff8160916e>] entry_SYSCALL_64_fastpath+0x12/0x6d
[  343.975285] DWARF2 unwinder stuck at entry_SYSCALL_64_fastpath+0x12/0x6d

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
15a93de7e9 scsi: qedf: Fix VLAN display when printing sent FIP frames
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:10 -04:00
Chad Dupuis
f32803bb45 scsi: qedf: Add missing skb frees in error path
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:09 -04:00
Chad Dupuis
c3ef86f3ec scsi: qedf: Increase the number of default FIP VLAN request retries to 60
Some configurations need more than 30 seconds to respond to a FIP VLAN
request so increase the default to 60 seconds.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:09 -04:00
Chad Dupuis
44c7c85911 scsi: qedf: Synchronize rport restarts when multiple ELS commands time out
If multiple ELS commands time out, such as aborts, they could all try to
restart the same rport and the same time.  This could mean multiple
multiple processes trying to clean up any outstanding commands or trying
to upload the same port.

Add a new flag (QEDF_RPORT_IN_RESET) and check other fcport state flags
before trying to reset the port.

Fixes the crash:

[17501.824701] ------------[ cut here ]------------
[17501.824733] kernel BUG at include/asm-generic/dma-mapping-common.h:65!
[17501.824760] invalid opcode: 0000 [#1] SMP
[17501.824781] Modules linked in: xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT nf_reject_ipv4 tun bridge stp llc ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ses enclosure dm_service_time vfat fat sb_edac edac_core intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass joydev btrfs hpilo raid6_pq iTCO_wdt iTCO_vendor_support xor hpwdt ipmi_ssif sg crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul ioatdma lpc_ich glue_helper ablk_helper i2c_i801 shpchp cryptd ipmi_si pcspkr acpi_power_meter ipmi_devintf pcc_cpufreq dca wmi ipmi_msghandler dm_multipath nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs libcrc32c sr_mod cdrom sd_mod
[17501.825119]  crc_t10dif crct10dif_generic mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm qedf(OE) drm libfcoe ahci qedi(OE) crct10dif_pclmul libfc libahci uio crct10dif_common crc32c_intel libiscsi libata scsi_transport_iscsi scsi_transport_fc tg3 qede(OE) scsi_tgt hpsa qed(OE) i2c_core ptp scsi_transport_sas pps_core iscsi_boot_sysfs dm_mirror dm_region_hash dm_log dm_mod
[17501.825292] CPU: 8 PID: 10531 Comm: kworker/u96:1 Tainted: G           OE  ------------   3.10.0-693.el7.x86_64 #1
[17501.825330] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 06/02/2016
[17501.825372] Workqueue: fc_rport_eq fc_rport_work [libfc]
[17501.825395] task: ffff88101bca8000 ti: ffff881025278000 task.ti: ffff881025278000
[17501.825424] RIP: 0010:[<ffffffffc042def9>]  [<ffffffffc042def9>] qedf_unmap_sg_list.isra.15+0x89/0x90 [qedf]
[17501.825471] RSP: 0018:ffff88102527bb98  EFLAGS: 00010212
[17501.825493] RAX: ffff8800224eac00 RBX: ffffc9000cd05210 RCX: 0000000000001000
[17501.825520] RDX: 000000007e655e40 RSI: 0000000000001000 RDI: ffff88107fe3b098
[17501.826683] RBP: ffff88102527bba0 R08: ffffffff81a13200 R09: 0000000000000286
[17501.827747] R10: 0000000000000004 R11: 0000000000000005 R12: ffffc9000cd051b8
[17501.828804] R13: ffff881037640c28 R14: 0000000000000007 R15: ffffc9000cd05200
[17501.829850] FS:  0000000000000000(0000) GS:ffff88103fa00000(0000) knlGS:0000000000000000
[17501.830910] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[17501.831966] CR2: 00007f9b94005f38 CR3: 00000000019f2000 CR4: 00000000003407e0
[17501.833027] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[17501.834087] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[17501.835142] Stack:
[17501.836201]  ffff881033ddbb80 ffff88102527bc30 ffffffffc042f834 0000000000002710
[17501.837264]  ffff88102527bbd0 ffffffff8133d9dd ffffc9000cd052a0 ffff88102527bc30
[17501.838325]  ffffffff816a9c65 0000000000000001 ffff88101bca8000 ffffffff810c4810
[17501.839388] Call Trace:
[17501.840446]  [<ffffffffc042f834>] qedf_scsi_done+0x54/0x1d0 [qedf]
[17501.841504]  [<ffffffff8133d9dd>] ? list_del+0xd/0x30
[17501.842537]  [<ffffffff816a9c65>] ? wait_for_completion_timeout+0x125/0x140
[17501.843560]  [<ffffffff810c4810>] ? wake_up_state+0x20/0x20
[17501.844577]  [<ffffffffc0430311>] qedf_initiate_cleanup+0x2e1/0x310 [qedf]
[17501.845587]  [<ffffffffc04305fe>] qedf_flush_active_ios+0x10e/0x260 [qedf]
[17501.846612]  [<ffffffffc042892f>] qedf_cleanup_fcport+0x5f/0x370 [qedf]
[17501.847613]  [<ffffffffc04292d8>] qedf_rport_event_handler+0x398/0x950 [qedf]
[17501.848602]  [<ffffffff810cdc7c>] ? dequeue_entity+0x11c/0x5d0
[17501.849581]  [<ffffffff81098a2b>] ? __internal_add_timer+0xab/0x130
[17501.850555]  [<ffffffff810ce54e>] ? dequeue_task_fair+0x41e/0x660
[17501.851528]  [<ffffffffc03241a4>] fc_rport_work+0xf4/0x6c0 [libfc]
[17501.852490]  [<ffffffff810a881a>] process_one_work+0x17a/0x440
[17501.853446]  [<ffffffff810a94e6>] worker_thread+0x126/0x3c0

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-05-08 00:57:09 -04:00
Sudarsana Reddy Kalluru
cac6f69154 qed: Add support for Unified Fabric Port.
This patch adds driver changes for supporting the Unified Fabric Port
(UFP). This is a new paritioning mode wherein MFW provides the set of
parameters to be used by the device such as traffic class, outer-vlan
tag value, priority type etc. Drivers receives this info via notifications
from mfw and configures the hardware accordingly.

Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-05-07 23:46:10 -04:00
Arnd Bergmann
a8db6140d7 scsi: qedf: use correct strncpy() size
gcc-8 warns during link-time optimization that the strncpy() call passes
the size of the source buffer rather than the destination:

drivers/scsi/qedf/qedf_dbg.c: In function 'qedf_uevent_emit':
include/linux/string.h:253: error: 'strncpy' specified bound depends on the length of the source argument [-Werror=stringop-overflow=]

This changes it to strscpy() with the correct length, guaranteeing a
properly nul-terminated string of the right size.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-13 21:37:02 -05:00
Arnd Bergmann
d9ea463a1c scsi: qedf: fix LTO-enabled build
The prototype for qedf_dbg_fops/qedf_debugfs_ops doesn't match the definition,
which causes the final link to fail with link-time optimizations:

drivers/scsi/qedf/qedf_main.c:34: error: type of 'qedf_dbg_fops' does not match original declaration [-Werror=lto-type-mismatch]
 extern struct file_operations qedf_dbg_fops;

drivers/scsi/qedf/qedf_debugfs.c:443: note: 'qedf_dbg_fops' was previously declared here
 const struct file_operations qedf_dbg_fops[] = {

drivers/scsi/qedf/qedf_main.c:33: error: type of 'qedf_debugfs_ops' does not match original declaration [-Werror=lto-type-mismatch]
 extern struct qedf_debugfs_ops qedf_debugfs_ops;

drivers/scsi/qedf/qedf_debugfs.c:102: note: 'qedf_debugfs_ops' was previously declared here
 struct qedf_debugfs_ops qedf_debugfs_ops[] = {

This corrects the prototype and moves it into a shared header file where it
belongs. The file operations can also be marked 'const' like the
qedf_debugfs_ops.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-13 21:37:01 -05:00
Colin Ian King
8d6febb0cc scsi: qedf: remove redundant initialization of 'fcport'
Pointer fcport is initialized with a value that is never read, it is
re-assigned a new value later on, hence the initialization is redundant
and can be removed.

Cleans up clang warning:
drivers/scsi/qedf/qedf_io.c:920:21: warning: Value stored to 'fcport'
during its initialization is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-02-13 21:37:00 -05:00
Linus Torvalds
b2fe5fa686 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...
2018-01-31 14:31:10 -08:00
Wei Yongjun
e89cabf26e scsi: qedf: Fix error return code in __qedf_probe()
Fix to return error code -ENOMEM from the error handling case instead of
0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-01-22 20:03:56 -05:00
Tomer Tayar
41e87c91f4 qed*: Advance drivers' version to 8.33.0.20
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Chad Dupuis <Chad.Dupuis@cavium.com>
Signed-off-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 13:59:16 -05:00
Tomer Tayar
da09091732 qed*: Utilize FW 8.33.1.0
Advance the qed* drivers to use firmware 8.33.1.0:
Modify core driver (qed) to utilize the new FW and initialize the device
with it. This is the lion's share of the patch, and includes changes to FW
interface files, device initialization flows, FW interaction flows, and
debug collection flows.
Modify Ethernet driver (qede) to make use of new FW in fastpath.
Modify RoCE/iWARP driver (qedr) to make use of new FW in fastpath.
Modify FCoE driver (qedf) to make use of new FW in fastpath.
Modify iSCSI driver (qedi) to make use of new FW in fastpath.

Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Yuval Bason <Yuval.Bason@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Manish Chopra <Manish.Chopra@cavium.com>
Signed-off-by: Chad Dupuis <Chad.Dupuis@cavium.com>
Signed-off-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 13:59:16 -05:00
Tomer Tayar
21dd79e82f qed*: HSI renaming for different types of HW
This patch renames defines and structures in the FW HSI files to allow a
distinction between different types of HW.

Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Chad Dupuis <Chad.Dupuis@cavium.com>
Signed-off-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 13:59:15 -05:00
James Bottomley
2441500a41 Merge branch 'fixes' into misc 2017-09-07 12:12:43 -07:00
Hannes Reinecke
a81ac3b046 scsi: qedf: drop bus reset handler
qedf has a host reset handler, but as the bus reset handler is a stub
always returning SUCCESS the host reset is never invoked.  So drop the
bus reset handler.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Tested-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-25 17:21:11 -04:00
Chad Dupuis
b7fa2cbda5 scsi: qedf: Update driver version to 8.20.5.0.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:04 -04:00
Chad Dupuis
0516abdf2d scsi: qedf: Fix up modinfo parameter name for 'debug' in modinfo output.
Because we were passing 'qedf_debug' instead of 'debug' to the
MODULE_PARM_DESC() macro, modinfo listed the parameter name as 'qedf_debug'
instead of it's proper name 'debug'.  Correct the parameter name.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:04 -04:00
Chad Dupuis
428ca6423e scsi: qedf: Covert single-threaded workqueues to regular workqueues.
There is no ordering required for the various workqueues the driver uses
so they can be converted to regular workqueues.

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:03 -04:00
Chad Dupuis
cf29116375 scsi: qedf: Corrent VLAN tag insertion in fallback VLAN case.
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>
2017-08-24 22:29:03 -04:00
Chad Dupuis
a3cd42a9d6 scsi: qedf: Use granted MAC from the FCF for the FCoE source address if it 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>
2017-08-24 22:29:02 -04:00
Chad Dupuis
01fd76a765 scsi: qedf: Set WWNN and WWPN based on values from qed.
If dev_info.wwpn and dev_info.wwnn are set by qed use these values to set
the WWNs of the port. Otherwise fall back to the old method using
fcoe_wwn_from_mac().

Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-24 22:29:02 -04:00
Christophe JAILLET
47c4ccd308 scsi: qedf: Fix a potential NULL pointer dereference
At the beginning of 'qedf_srr_compl()' and of 'qedf_rec_compl()', we
check if 'orig_io_req' is NULL. If this happens, a NULL pointer
dereference will occur in the error handling path.

Fix it by adding an additional label in the error handling path in order
to avoid this NULL pointer dereference.

[mkp: typo]

Fixes: 61d8658b4a ("scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework.")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-23 22:42:41 -04:00
Thomas Bogendoerfer
722477c4f2 scsi: qedf: Limit number of CQs
FCOE offloading failed with:

[qed_sp_fcoe_func_start:150(sp-0-3b:00.02)]Cannot satisfy CQ amount. CQs
		 requested 8, CQs available 6. Aborting function start
[qed_fcoe_start:821()]Failed to start fcoe
[__qedf_probe:3041]:6: Cannot start FCoE function.

The reason is a newly introduced check in the qed main part. This change
also provides the information about how many CQs are available, so we
simply limit the number of requested CQs..

Fixes: 3c5da94278 ("qed: Share additional information with qedf")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-07-26 22:00:39 -04:00
Colin Ian King
acef2690d1 scsi: qedf: fix spelling mistake: "offlading" -> "offloading"
Trivial fix to spelling mistake in QEDF_INFO message and remove
duplicated "since" (thanks to Tyrel Datwyler for spotting the latter
issue).

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Chad Dupuis <chad.dupuis@cavium.com>
Reviewed-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-07-12 17:11:59 -04:00
Linus Torvalds
9031114841 SCSI misc on 20170704
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.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.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 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
  ...
2017-07-06 12:10:33 -07:00