- 22 Mar, 2016 13 commits
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Varun Prakash authored
update Kconfig and Makefile for enabling iSCSI DDP page pod manager. Signed-off-by:
Varun Prakash <varun@chelsio.com> Acked-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
Nicholas Bellinger <nab@linux-iscsi.org>
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Varun Prakash authored
add files for common page pod manager, both iSCSI initiator and target ULDs will use common ppod manager for DDP. Signed-off-by:
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Varun Prakash authored
move delayed ack macro definitions to common header file t4_msg.h. Signed-off-by:
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Varun Prakash authored
move VLAN_NONE macro definition from l2t.c to l2t.h Signed-off-by:
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Varun Prakash authored
add members for iSCSI DDP. Signed-off-by:
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Varun Prakash authored
add structure, macro and constant definitions for iSCSI Tx and Rx. Signed-off-by:
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Varun Prakash authored
move struct cpl_rx_data_ddp definition to common header file t4_msg.h. Signed-off-by:
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Varun Prakash authored
move struct ulptx_idata definition to common header file t4_msg.h. Signed-off-by:
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Varun Prakash authored
move struct tcp_options, struct cpl_pass_accept_req, enum defining congestion control algorithms and associated macros to common header file t4_msg.h Signed-off-by:
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Varun Prakash authored
add large receive offload(LRO) support for upper layer drivers. Signed-off-by:
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Varun Prakash authored
allocate rxqs for non T4 adapters, dump rxqs sge qinfo through debugfs. Signed-off-by:
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Varun Prakash authored
Chelsio iSCSI target offload driver will register with cxgb4 driver as ULD of type CXGB4_ULD_ISCSIT. Signed-off-by:
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Himanshu Madhani authored
This patch fixes an active I/O shutdown bug for fabric drivers using target_wait_for_sess_cmds(), where se_cmd descriptor shutdown would result in hung tasks waiting indefinitely for se_cmd->cmd_wait_comp to complete(). To address this bug, drop the incorrect list_del_init() usage in target_wait_for_sess_cmds() and always complete() during se_cmd target_release_cmd_kref() put, in order to let caller invoke the final fabric release callback into se_cmd->se_tfo->release_cmd() code. Reported-by:
Himanshu Madhani <himanshu.madhani@qlogic.com> Tested-by:
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- 11 Mar, 2016 27 commits
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Nicholas Bellinger authored
This patch modifies existing transport_complete_*() code to avoid invoking target_core_fabric_ops->queue_data_in() driver callbacks for I/O READs with non-GOOD SAM status. Some initiators expect GOOD status when a DATA-IN payload transfer is involved, so to be safe go ahead and always invoke target_core_fabric_ops->queue_status() to generate fabric responses instead. Note this is a prerequisite for IBLOCK supporting retriable status, so SAM_STAT_BUSY + SAM_STAT_TASK_SET_FULL always generates fabric driver responses instead of initiating DataIN payload transfer when non-GOOD status is present Reviewed-by:
Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Andy Grover <agrover@redhat.com> Cc: Mike Christie <mchristi@redhat.com> Signed-off-by:
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Sheng Yang authored
TCMU_MAILBOX_FLAG_CAP_OOOC was introduced, and userspace can check the flag for out-of-order completion capability support. Also update the document on how to use the feature. Signed-off-by:
Sheng Yang <sheng@yasker.org> Reviewed-by:
Andy Grover <agrover@redhat.com> Signed-off-by:
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Nicholas Bellinger authored
Fix the following printk size_t warning as per 0-day build: All warnings (new ones prefixed by >>): drivers/target/target_core_user.c: In function 'is_ring_space_avail': >> drivers/target/target_core_user.c:385:12: warning: format '%lu' >> expects argument of type 'long unsigned int', but argument 3 has type >> 'size_t {aka unsigned int}' [-Wformat=] pr_debug("no data space: only %lu available, but ask for %lu\n", ^ Reported-by:kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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Sheng Yang authored
Which would result in NPE after when userspace connected again. Expired command would be freed either when handling command(by userspace), or when device was tearing down Reviewed-by:
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Sheng Yang authored
The data_bitmap was introduced to support asynchornization accessing of data area. We divide mailbox data area into blocks, and use data_bitmap to track the usage of data area. All the new command's data would start with a new block, and may left unusable space after it end. But it's easy to track using data_bitmap. Now we can allocate data area for asynchronization accessing from userspace, since we can track the allocation using data_bitmap. The userspace part would be the same as Maxim's previous asynchronized implementation. Signed-off-by:
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Sheng Yang authored
Prepare for data_bitmap in the next patch. Reviewed-by:
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Sheng Yang authored
We don't need use one iovec per scatter-gather list entry, since data area are continuous. Reviewed-by:
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Andy Grover authored
se_dev_entry.lun_flags and se_lun.lun_access are only used for keeping track of read-write vs. read-only state. Since this is an either/or thing we can represent it as bool, and remove the unneeded enum transport_lunflags_table, which is left over from when there were more flags. Change code that uses this enum to just use true/false, and make it clear through variable and param names that true means read-only, false means read-write. Signed-off-by:
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Mike Christie authored
This patch has iblock pass the WRITE_SAME command to the device for offloading if possible. It is similar to what is done for UNMAP/discards, except that we export a large max write same value to the initiator, and then rely on the block layer to break it up into multiple requests if it cannot fit into one. v2. - Drop file backend changes and move helper function to iblock backend. Signed-off-by:
Mike Christie <mchristi@redhat.com> Signed-off-by:
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Christoph Hellwig authored
We only use the pointer when processing regular iSER commands, and it then always points to the struct iser_cmd that contains the TX descriptor. Remove it and rely on container_of to save a little space and avoid a pointer that is updated multiple times per processed command. Signed-off-by:
Sagi Grimberg <sagig@mellanox.com> Signed-off-by:
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Christoph Hellwig authored
There is exactly one instance per struct isert_cmd, so merge the two to simplify everyones life. Signed-off-by:
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Christoph Hellwig authored
Use the workqueue based CQ type similar to what isert was using previously, and properly split up the completion handlers. Note that this also takes special care to handle the magic login WRs separately, and also renames the submission functions so that it's clear that they are only to be used for the login buffers. (Fix up isert_print_wc usage in isert_beacon_done - nab) Signed-off-by:
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Christoph Hellwig authored
The login receive buffer is used as a iser_rx_desc, so type it as such in struct isert_conn and allocate the exactly right space for it. The TX buffer is moved to a separate variable and properly sized as well. Signed-off-by:
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Christoph Hellwig authored
This is the same as ISCSI_DEF_MAX_RECV_SEG_LEN (and must be the same given the structure layouts), so just use that constant instead. This also allows removing ISER_RX_LOGIN_SIZE in favor of ISER_RX_PAYLOAD_SIZE. Signed-off-by:
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Jenny Derzhavetz authored
We can never get to isert_wait_conn in INIT state anymore, so get rid of this condition. Signed-off-by:
Jenny Derzhavetz <jennyf@mellanox.com> Signed-off-by:
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Jenny Derzhavetz authored
With current termination flow we call release_conn after completion. Signed-off-by:
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Jenny Derzhavetz authored
When we receive an event that triggers connection termination, we have a a couple of things we may want to do: 1. In case we are already terminating, bailout early 2. In case we are connected but not bound, disconnect and schedule a connection cleanup silently (don't reinstate) 3. In case we are connected and bound, disconnect and reinstate the connection This rework fixes a bug that was detected against a mis-behaved initiator which rejected our rdma_cm accept, in this stage the isert_conn is no bound and reinstate caused a bogus dereference. What's great about this is that we don't need the post_recv_buf_count anymore, so get rid of it. Signed-off-by:
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Jenny Derzhavetz authored
No need to restrict this check to specific events. Signed-off-by:
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Jenny Derzhavetz authored
We need an indication that isert_conn->iscsi_conn binding has happened so we'll know not to invoke a connection reinstatement on an unbound connection which will lead to a bogus isert_conn->conn dereferece. Signed-off-by:
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Jenny Derzhavetz authored
Once connection request is accepted, one rx descriptor is posted to receive login request. This descriptor has rx type, but is outside the main pool of rx descriptors, and thus was mistreated as tx type. Signed-off-by:
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Quinn Tran authored
#cat /sys/kernel/debug/qla2xxx/qla2xxx_31/tgt_sess qla2xxx_31 Port ID Port Name Handle ff:fc:01 21:fd:00:05:33:c7:ec:16 0 01:0e:00 21:00:00:24:ff:7b:8a:e4 1 01:0f:00 21:00:00:24:ff:7b:8a:e5 2 .... (Drop ->check_initiator_node_acl() parameter usage - nab) Signed-off-by:
Quinn Tran <quinn.tran@qlogic.com> Signed-off-by:
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Nicholas Bellinger authored
This patch converts ib_srpt to use existing percpu_ida tag pre-allocation for struct srpt_send_ioctx. This allows ib_srpt to drop it's internal pre-allocation mechanisms with the extra spin_lock_irqsave, and use percpu_ida common code for doing this. Cc: Vu Pham <vu@mellanox.com> Cc: Sagi Grimberg <sagig@mellanox.com> Cc: Bart Van Assche <bvanassche@acm.org> Signed-off-by: -
Nicholas Bellinger authored
This patch converts tcm_fc to modern TARGET_SCF_ACK_KREF usage for ft_queue_status(), and fixes ft_check_stop_free() to return transport_generic_free_cmd() for ->cmd_kref. It also converts TM request -> ft_send_tm() to use ACK_KREF, and update ft_queue_tm_resp() to drop the outstanding kref after queueing TM response into fabric code. Cc: Vasu Dev <vasu.dev@linux.intel.com> Cc: Mark Rustad <mark.d.rustad@intel.com> Cc: Robert Love <robert.w.love@intel.com> Signed-off-by: -
Nicholas Bellinger authored
This patch converts xen-scsiback to modern TARGET_SCF_ACK_KREF usage for scsiback_cmd_done() callback path. It also also converts TMR -> scsiback_device_action() to use modern target_submit_tmr() code. Acked-by:
Juergen Gross <jgross@suse.com> Tested-by:
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Nicholas Bellinger authored
This patch converts xen-scsiback to use percpu_ida tag pre-allocation for struct vscsibk_pend descriptor, in order to avoid fast-path struct vscsibk_pend memory allocations. Note by default this is currently hardcoded to 128. (Add wrapper for handling pending_req tag failure - Juergen) (Drop left-over se_cmd memset in scsiback_cmd_exec - Juergen) Acked-by:
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Nicholas Bellinger authored
This patch drops struct usbg_cmd->kref internal kref-erence usage, for proper TARGET_SCF_ACK_KREF conversion. Tested-by:
Andrzej Pietrasiewicz <andrzej.p@samsung.com> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
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Nicholas Bellinger authored
This patch converts usb-gadget target to use percpu_ida tag pre-allocation for struct usbg_cmd descriptor, in order to avoid fast-path struct usbg_cmd memory allocations. Note by default this is currently hardcoded to 128. Tested-by:
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