- 13 Jun, 2017 40 commits
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Quinn Tran authored
Accelerate generation of SCSI busy to let initiators slow down when target is running low in resources. Signed-off-by:
Quinn Tran <quinn.tran@cavium.com> Signed-off-by:
Himanshu Madhani <himanshu.madhani@cavium.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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Quinn Tran authored
Current code already destroy all target sessions when target Mode is stopped. Target core would waits for all commands that belong to each session to purge. The extra wait for interrupts to settle down is not relevant. Signed-off-by:
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Quinn Tran authored
Previously, the ql2xexchoffld module parameter was used to control the max number of exchanges to be offload onto host memory. Module parameter ql_dm_tgt_ex_pct was used to control the percentage of exchanges allocated to the Target side. With this patch, module parameter ql_dm_tgt_ex_pct is no longer used to control exchanges for the driver. New module parameter ql2xiniexchg is added to control exchanges between target mode and initiator mode. With the updated module parameters, users can control the exact number of exchanges for either Initiator or Target. The exchange offload feature will be automatically enabled when the total number of exchanges exceeds 2048 limit. Signed-off-by:
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Quinn Tran authored
Tell FW to track exchange/cmd state to prevent driver from using stale exchange or exchange that is not meant for this command. Signed-off-by:
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Quinn Tran authored
Assign unique id to all traces and logs for debug purpose. Signed-off-by:
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Quinn Tran authored
Name server login is normally handle by FW. In some rare case where one of the switches is being updated, name server login could get affected. Trigger relogin to name server when driver detects this condition. Signed-off-by:
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Quinn Tran authored
Acked-by:
Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by:
Bart Van Assche <Bart.VanAssche@sandisk.com> Signed-off-by:
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Sawan Chandak authored
There is already flag defined PFLG_DISCONNECTED, which is set for PCI or register disconnect error condition. There is no need to have flag PCI_ERR, which has same purpose. Remove use of PCI_ERR flag and use PFLG_DISCONNECTED flag during error condition. Signed-off-by:
Sawan Chandak <sawan.chandak@cavium.com> Signed-off-by:
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Quinn Tran authored
In case of hardware queue full, commands can loop between TCM stack and tcm_qla2xx shim layers for retry. While command is waiting for retry, task mgmt can get ahead and abort the cmmand that encountered queue full condition. Fix this by dropping the command, if task mgmt has already started the command free process. Acked-by:
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Quinn Tran authored
If the port is moved/changed, current code would trigger a deletion. If the port is already deleted, then do relogin. Signed-off-by:
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Joe Carnuccio authored
Signed-off-by:
Joe Carnuccio <joe.carnuccio@cavium.com> Signed-off-by:
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Quinn Tran authored
Convert usage of spin_lock to spin_lock_irqsave because qla2xxx driver can access all the data structures in an interrupt context. Signed-off-by:
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Quinn Tran authored
Driver added mechanism to move ABTS/PUREX/RIDA mailbox to ATIO queue as part of commit id 41dc529a ("qla2xxx: Improve RSCN handling in driver"). This patch adds a check to only allow ABTS/PURX/RIDA to be moved to ATIO Queue for ISP83XX and ISP27XX. Cc: <stable@vger.kernel.org> # 4.11 Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
Chad Dupuis <chad.dupuis@cavium.com> Signed-off-by:
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Chad Dupuis authored
Add the change_queue_depth member to our SCSI host template so the queue depth of devices attached to qedf can be changed dynamically. Signed-off-by:
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Chad Dupuis authored
Increase the default number of commands that the driver tells the SCSI mid-layer it can do to increase the default performance of the driver. Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
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Chad Dupuis authored
Signed-off-by:
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Chad Dupuis authored
Drop invalid or unexpected FCoE frames that come into the non-offload path since the FCoE firmware would not do the filtering for us. Signed-off-by:
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Chad Dupuis authored
We need to add a bus reset no-op as without it some of the LUNs attached to a vport may go offline when the error handler escalates to host reset due to not having a bus reset handler in the driver. What happens is we escalate to host reset which does a soft link down/link up to reset the adapter. However with multiple vports attached it's been observed that if the vports do log back into the target within 5 seconds, the SCSI layer offlines the devices most likely due to a TUR timing out to verify that the device is online. Adding a bus reset handler will cause the TUR to be sent after the bus reset handler where the devices will still be online if the bus reset is initiated by sg_reset (which is the case in the test that was failing). The bus reset will succeed and not needlessly bring the device offline/online. Signed-off-by:
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Chad Dupuis authored
We should be using the same logic to do a soft reset of the FCoE function whether it is initiated via sg_reset or the fc_host issue_lip attribute. Refactor the host reset and fcoe reset handlers to use the preferred logic which is currently contained in qedf_eh_host_reset(). Signed-off-by:
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Chad Dupuis authored
Reduce the logging level we set for qed messages pertaining to this PCI function so that unnecessary messages are not printed in the kernel message log. Signed-off-by:
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Chad Dupuis authored
Expose this information for interested applications. Signed-off-by:
Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by:
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Chad Dupuis authored
If an fcport is not offloaded then the members of the qedf_rport struct are undefined which may cause a system crash. Signed-off-by:
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Chad Dupuis authored
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:
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Chad Dupuis authored
We need to check the return code the set_fp_int() callback in case we were not allocated any fastpath interrupts or there was an error setting up the fastpath interrupts from the qed perspective. Signed-off-by:
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Chad Dupuis authored
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Chad Dupuis authored
For libfc to register FDMI attributes we need to do two things: - Set the appropriate fc_host attributes that libfc will use to form the FDMI registration commands - Set lport->fdmi_enabled to 1 Signed-off-by:
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Varun Prakash authored
T6 FCoE support is added in fw version 1.16.45.0 so return error if fw version < 1.16.45.0 for T6 adapters. Signed-off-by:
Varun Prakash <varun@chelsio.com> Signed-off-by:
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Milan P. Gandhi authored
This patch removes an extra out label in _fcoe_create function where we return if creation of FCOE interface is failed. Signed-off-by:
Milan P. Gandhi <mgandhi@redhat.com> Acked-by:
Johannes Thumshirn <jth@kernel.org> Signed-off-by:
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Milan P. Gandhi authored
This patch does a cleanup and fixes few small typos in fcoe.c Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake in debugfs message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Acked-by:
James Smart <james.smart@broadcom.com> Signed-off-by:
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Bart Van Assche authored
qla_tgt_cmd.free_work is not used by the qla2xxx driver. Hence remove that member of struct qla_tgt_cmd. Signed-off-by:
Christoph Hellwig <hch@lst.de> Cc: Quinn Tran <quinn.tran@cavium.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Andy Grover <agrover@redhat.com> Cc: David Disseldorp <ddiss@suse.de> Signed-off-by:
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Gustavo A. R. Silva authored
Add null check before indirectly dereferencing pointer task->lldd_task in statement u32 tag = slot->idx; Addresses-Coverity-ID: 1373843 Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Reviewed-by:
John Garry <john.garry@huawei.com> Signed-off-by:
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Arnd Bergmann authored
The newly added suspend/resume support causes harmless warnings when CONFIG_PM is disabled: smartpqi/smartpqi_init.c:5147:12: error: 'pqi_ctrl_wait_for_pending_io' defined but not used [-Werror=unused-function] smartpqi/smartpqi_init.c:2019:13: error: 'pqi_wait_until_lun_reset_finished' defined but not used [-Werror=unused-function] smartpqi/smartpqi_init.c:2013:13: error: 'pqi_wait_until_scan_finished' defined but not used [-Werror=unused-function] We can avoid the warnings by removing the #ifdef around the handlers and instead marking them as __maybe_unused, which will let gcc drop the unused code silently. Fixes: f44d210312a6 ("scsi: smartpqi: add suspend and resume support") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Kees Cook authored
When copying attributes, the len argument was padded out and the resulting memcpy() would copy beyond the end of the source buffer. Avoid this, and use size_t for val_len to avoid all the casts. Similarly, avoid source buffer casts and use void *. Additionally enforces val_len can be represented by u16 and that the DMA buffer was not overflowed. Fixes the size of mfa, which is not FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN (but it will be padded up to 4). This was noticed by the future CONFIG_FORTIFY_SOURCE checks. Cc: Daniel Micay <danielmicay@gmail.com> Signed-off-by:
Kees Cook <keescook@chromium.org> Acked-by:
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Stephen Hemminger authored
In storvsc driver, inbound messages do not go through inbound lock. The only effect of this lock was is to provide a barrier for connect and remove logic. Signed-off-by:
Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by:
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Stephen Hemminger authored
In 4.12-rc1, new functions were added to support iterating over elements in the vmbus event ring. This patch uses them to simplify the ring buffer handling in virtual SCSI driver as well. Signed-off-by:
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Varun Prakash authored
Enable probe for T6 adapters, add code to flash T6 firmware and firmware config file, use T6 specific macros. Signed-off-by:
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Kyle Fortin authored
iscsiadm session login can fail with the following error: iscsiadm: Could not login to [iface: default, target: iqn.1986-03.com... iscsiadm: initiator reported error (9 - internal error) When /etc/iscsi/iscsid.conf sets node.session.cmds_max = 4096, it results in 64K-sized kmallocs per session. A system under fragmented slab pressure may not have any 64K objects available and fail iscsiadm session login. Even though memory objects of a smaller size are available, the large order allocation ends up failing. The kernel prints a warning and does dump_stack, like below: iscsid: page allocation failure: order:4, mode:0xc0d0 CPU: 0 PID: 2456 Comm: iscsid Not tainted 4.1.12-61.1.28.el6uek.x86_64 #2 Call Trace: [<ffffffff816c6e40>] dump_stack+0x63/0x83 [<ffffffff8118e58a>] warn_alloc_failed+0xea/0x140 [<ffffffff81191df9>] __alloc_pages_slowpath+0x409/0x760 [<ffffffff81192401>] __alloc_pages_nodemask+0x2b1/0x2d0 [<ffffffffa048f6c0>] ? dev_attr_host_ipaddress+0x20/0xffffffffffffc722 [<ffffffff811dc38f>] alloc_pages_current+0xaf/0x170 [<ffffffff81192581>] alloc_kmem_pages+0x31/0xd0 [<ffffffffa048f600>] ? iscsi_transport_group+0x20/0xffffffffffffc7e2 [<ffffffff811ad738>] kmalloc_order+0x18/0x50 [<ffffffff811ad7a4>] kmalloc_order_trace+0x34/0xe0 [<ffffffff8146ee30>] ? transport_remove_classdev+0x70/0x70 [<ffffffff811e843d>] __kmalloc+0x27d/0x2a0 [<ffffffff810c8cbd>] ? complete_all+0x4d/0x60 [<ffffffffa04af299>] iscsi_pool_init+0x69/0x160 [libiscsi] [<ffffffff81465d90>] ? device_initialize+0xb0/0xd0 [<ffffffffa04af510>] iscsi_session_setup+0x180/0x2f4 [libiscsi] [<ffffffffa04c5a60>] ? iscsi_max_lun+0x20/0xfffffffffffffa9e [iscsi_tcp] [<ffffffffa04c531f>] iscsi_sw_tcp_session_create+0xcf/0x150 [iscsi_tcp] [<ffffffffa04c5a60>] ? iscsi_max_lun+0x20/0xfffffffffffffa9e [iscsi_tcp] [<ffffffffa048a633>] iscsi_if_create_session+0x33/0xd0 [<ffffffffa04c5a60>] ? iscsi_max_lun+0x20/0xfffffffffffffa9e [iscsi_tcp] [<ffffffffa048abd8>] iscsi_if_recv_msg+0x508/0x8c0 [scsi_transport_iscsi] [<ffffffff811922eb>] ? __alloc_pages_nodemask+0x19b/0x2d0 [<ffffffff811e6d69>] ? __kmalloc_node_track_caller+0x209/0x2c0 [<ffffffffa048b00c>] iscsi_if_rx+0x7c/0x200 [scsi_transport_iscsi] [<ffffffff81623dc6>] netlink_unicast+0x126/0x1c0 [<ffffffff8162468c>] netlink_sendmsg+0x36c/0x400 [<ffffffff815d2fed>] sock_sendmsg+0x4d/0x60 [<ffffffff815d596a>] ___sys_sendmsg+0x30a/0x330 [<ffffffff811bc72c>] ? handle_pte_fault+0x20c/0x230 [<ffffffff811bc90c>] ? __handle_mm_fault+0x1bc/0x330 [<ffffffff811bcb32>] ? handle_mm_fault+0xb2/0x1a0 [<ffffffff815d5b99>] __sys_sendmsg+0x49/0x90 [<ffffffff815d5bf9>] SyS_sendmsg+0x19/0x20 [<ffffffff816cbb2e>] system_call_fastpath+0x12/0x71 Use kvzalloc for iscsi_pool in iscsi_pool_init. Signed-off-by:
Kyle Fortin <kyle.fortin@oracle.com> Tested-by:
Joseph Slember <joe.slember@oracle.com> Reviewed-by:
Lance Hartmann <lance.hartmann@oracle.com> Acked-by:
Lee Duncan <lduncan@suse.com> Signed-off-by:
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