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path: root/drivers/infiniband
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2016-12-12IB/rxe: Fix ref leak in rxe_create_qp()Andrew Boyer
The udata->inlen error path needs to clean up the ref added by rxe_alloc(). Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Add support for IB_CQ_REPORT_MISSED_EVENTSAndrew Boyer
Peek at the CQ after arming it so that we can return a hint. This avoids missed completions due to a race between posting CQEs and arming the CQ. For example, CM teardown waits on MAD requests to complete with ib_cq_poll_work(). Without this fix, the last completion might be left on the CQ, hanging the kthread doing the teardown. The console backtraces look like this: [ 4199.911284] Call Trace: [ 4199.911401] [<ffffffff9657fe95>] schedule+0x35/0x80 [ 4199.911556] [<ffffffff965830df>] schedule_timeout+0x22f/0x2c0 [ 4199.911727] [<ffffffff9657f7a8>] ? __schedule+0x368/0xa20 [ 4199.911891] [<ffffffff96580903>] wait_for_completion+0xb3/0x130 [ 4199.912067] [<ffffffff960a17e0>] ? wake_up_q+0x70/0x70 [ 4199.912243] [<ffffffffc074a06d>] cm_destroy_id+0x13d/0x450 [ib_cm] [ 4199.912422] [<ffffffff961615d5>] ? printk+0x57/0x73 [ 4199.912578] [<ffffffffc074a390>] ib_destroy_cm_id+0x10/0x20 [ib_cm] [ 4199.912759] [<ffffffffc076098c>] rdma_destroy_id+0xac/0x340 [rdma_cm] [ 4199.912941] [<ffffffffc076f2cc>] 0xffffffffc076f2cc Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Add support for zero-byte operationsAndrew Boyer
The last_psn algorithm fails in the zero-byte case: it calculates first_psn = N, last_psn = N-1. This makes the operation unretryable since the res structure will fail the (first_psn <= psn <= last_psn) test in find_resource(). While here, use BTH_PSN_MASK to mask the calculated last_psn. Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Unblock loopback by moving skb_out incrementAndrew Boyer
skb_out is decremented in rxe_skb_tx_dtor(), which is not called in the loopback() path. Move the increment to the send() path rather than rxe_xmit_packet(). Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Acked-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Don't update the response PSN unless it's going forwardsAndrew Boyer
A client might post a read followed by a send. The partner receives and acknowledges both transactions, posting an RCQ entry for the send, but something goes wrong with the read ACK. When the client retries the read, the partner's responder processes the duplicate read but incorrectly resets the PSN to the value preceding the original send. When the duplicate send arrives, the responder cannot tell that it is a duplicate, so the responder generates a duplicate RCQ entry, confusing the client. Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Reviewed-by: Yonatan Cohen <yonatanc@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Advance the consumer pointer before posting the CQEAndrew Boyer
A simple userspace application might poll the CQ, find a completion, and then attempt to post a new WQE to the SQ. A spurious error can occur if the userspace application detects a full SQ in the instant before the kernel is able to advance the SQ consumer pointer. This is noticeable when using single-entry SQs with ibv_rc_pingpong if lots of kernel and userspace library debugging is enabled. Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Reviewed-by: Yonatan Cohen <yonatanc@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Remove buffer used for printing IP addressAndrew Boyer
Avoid smashing the stack when an ICRC error occurs on an IPv6 network. Signed-off-by: Andrew Boyer <andrew.boyer@dell.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Remove unneeded cast in rxe_srq_from_attr()Dan Carpenter
It makes me nervous when we cast pointer parameters. I would estimate that around 50% of the time, it indicates a bug. Here the cast is not needed becaue u32 and and unsigned int are the same thing. Removing the cast makes the code more robust and future proof in case any of the types change. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Acked-by: Moni Shoua <monis@mellanox.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: Use DEFINE_SPINLOCK() for spinlockWei Yongjun
spinlock can be initialized automatically with DEFINE_SPINLOCK() rather than explicitly calling spin_lock_init(). Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Leon Romanosky <leonro@mellanox.com> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-12IB/rxe: avoid putting a large struct rxe_qp on stackArnd Bergmann
A race condition fix added an rxe_qp structure to the stack in order to be able to perform rollback in rxe_requester(), but the structure is large enough to trigger the warning for possible stack overflow: drivers/infiniband/sw/rxe/rxe_req.c: In function 'rxe_requester': drivers/infiniband/sw/rxe/rxe_req.c:757:1: error: the frame size of 2064 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] This changes the rollback function to only save the psn inside the qp, which is the only field we access in the rollback_qp anyway. Fixes: 3050b9985024 ("IB/rxe: Fix race condition between requester and completer") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Define platform_config_table_limits onceBart Van Assche
Defining static data structures in a header file is wrong because this causes the data structure to be instantiated once in every .c file it is included in. Hence move the definition of a static array from a header file into the only .c file in which it is used. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Dennis Dalessandro <dennis.dalessandro@intel.com> Cc: Dean Luick <dean.luick@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: constify mmu_notifier_ops structureBhumika Goyal
Declare the structure mmu_notifier_ops as const as it is only stored in the ops field of a mmu_notifier structure. The ops field is of type const struct mmu_notifier_ops *, so mmu_notifier_ops structures having this property can be declared as const. Done using coccinelle: @r1 disable optional_qualifier @ identifier i; position p; @@ static struct mmu_notifier_ops i@p = {...}; @ok1@ identifier r1.i; position p; struct mmu_rb_handler handler; @@ handler.mn.ops=&i@p @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ static +const struct mmu_notifier_ops i={...}; @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct mmu_notifier_ops i; File size before: text data bss dec hex filename 3566 72 16 3654 e46 drivers/infiniband/hw/hfi1/mmu_rb.o File size after: text data bss dec hex filename 3658 0 16 3674 e5a drivers/infiniband/hw/hfi1/mmu_rb.o Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/rdmavt, IB/hfi1, IB/qib: Add inlines for mtu divisionMike Marciniszyn
Add rvt_div_round_up_mtu() and rvt_div_mtu() routines to do the computation based on the pmtu and the log_pmtu. Change divides in qib, hfi1 to use the new inlines. Reviewed-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1,IB/qib: use rvt swqe mr deref helperMike Marciniszyn
Convert to use new swqe put routine. Reviewed-by: Brian Welty <brian.welty@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Avoid credit return allocation for cpu-less NUMA nodesHarish Chegondi
Do not allocate credit return base and DMA memory for NUMA nodes without CPUs. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1,IB/qib: Use new send completion helperMike Marciniszyn
Convert cq completion returns in both rdmavt drivers to use the new helper. Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/rdmavt: Add a send completion helperMike Marciniszyn
This is for use by client drivers to drive send completions into a CQ. A new exported table allows for the mapping of ib_wr_opcode into a ib_wc_opcode. Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/qib: Use standard refcount wrapper for QPsSebastian Sanchez
Use the standard driver wrapper for QP reference counters. This makes the code more maintainable. Fixes: Commit 4d6f85c3fa55 ("IB/rdmavt, IB/qib, IB/hfi1: Use new QP put get routines") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Use reference count wrapper for MRsSebastian Sanchez
Some parts of the code don't use the standard driver wrapper for memory region reference counters. Use the standard driver wrapper throughout the code. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Replace qp->refcount release code with standard driver wrapperSebastian Sanchez
Some parts of the code don't use the standard release wrapper rvt_put_qp() for decrementing and testing the refcount to then try to use a resource. Replace this code with the standard driver wrapper. Fixes: Commit 4d6f85c3fa55 ("IB/rdmavt, IB/qib, IB/hfi1: Use new QP put get routines") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Preserve external device completed bitDean Luick
The driver should not change the external device request completed bit when not actually doing an external device request. Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Remove critical section gap in sc_buffer_alloc()Sebastian Sanchez
In sc_buffer_alloc(), the sc->alloc_lock is released before calling sc_release_update(), and it is reacquired after the function call. This causes CPU lock trading. Fix it by not dropping the lock before calling sc_release_update(). Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Remove usage of qp->s_cur_sgeMitko Haralanov
The s_cur_sge field in the qp structure holds a pointer to the SGE of the currently processed WQE. It assumes the protection of the RVT_S_BUSY flag to prevent the changing of this field while the send engine is using it. This scheme works as long as there is only one instance of the send engine running at a time. Scaling of the send engine to multiple cores would break this assumption as there could be multiple instances of the send engine running on different CPUs. This opens a window where the QP's RVT_S_BUSY flag is not set but the send engine is still running. To prevent accidental changing of the s_cur_sge pointer, the QP's dependence on it is removed. The SGE pointer is now stored in the verbs_txreq, which is a per-packet data structure. This ensures that each individual packet has it's own pointer, which is setup while the RVT_S_BUSY flag is set. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/rdmavt: Add trace of MR segsMike Marciniszyn
Add tracing of MR segment information. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Add special setting for low power AOCDean Luick
Low power QSFP AOC cables require a different SerDes Tx PLL bandwidth setting than the default. The 8051 firmware does not know the details, so the driver needs to tell the firmware through a special setting. Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Remove definition of unused hfi1_affinity structTadeusz Struk
The struct hfi1_affinity is not used anymore. We use the struct hfi1_affinity_node and hfi1_affinity_node_list instead. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Remove dependence on qp->s_cur_sizeDon Hiatt
The qp->s_cur_size field assumes that the S_BUSY bit protects the field from modification after the slock is dropped. Scaling the send engine to multiple cores would break that assumption. Correct the issue by carrying the payload size in the txreq structure. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Show statistics counters under IB stats interfaceJianxin Xiong
Previously tools like hfi1stats had to access these counters through debugfs, which often caused permission issue for non-root users. It is not always acceptable to change the debugfs mounting permission due to security concerns. When exposed under the IB stats interface, the counters are universally readable by default. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/rdmavt: Fix trace hierarchyDennis Dalessandro
Split rdmavt traces into separate files to preserve the original hierarchy since only one trace sub system may now be defined per header file. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Disable header suppression for short packetsJakub Pawlak
For the received packets with payload less or equal 8DWS RxDmaDataFifoRdUncErr is not reported. There is set RHF.EccErr if the header is not suppressed. When such packet is detected on the send side the header suppression mechanism is disabled by clearing SH bit in the packet header. Reviewed-by: Mitko Haralanov <mitko.haralanov@intel.com> Signed-off-by: Jakub Pawlak <jakub.pawlak@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Export 8051 memory and LCB registers via debugfsDean Luick
Both the 8051 memory and LCB register access require multiple steps and coordination with the driver. This cannot be safely done with resource0 alone. The 8051 memory is exported read-only. LCB is exported read/write. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Use non-atomic __test_and_clear_bit in hot pathSebastian Sanchez
qp->r_aflags is already protected by qp->r_lock, therefore, test_and_clear_bit() doesn't need to be atomic. Profile shows this function call is costly. Change the test_and_clear_bit() call to use the non-atomic variant. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Fix dc8051 multiple qword memory readsDean Luick
When reading multiple dc8051 data memory locations at once, the read enabled field must be toggled at every address change. Do that by writing only the address first, then writing the enable. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-11IB/hfi1: Read new EPROM formatDean Luick
Add the ability to read the new EPROM format. Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Signed-off-by: Dean Luick <dean.luick@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-08iw_cxgb4: Fix error return code in c4iw_rdev_open()Wei Yongjun
Fix to return error code -ENOMEM from the __get_free_page() error handling case instead of 0, as done elsewhere in this function. Fixes: 05eb23893c2c ("cxgb4/iw_cxgb4: Doorbell Drop Avoidance Bug Fixes") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Add request for reset on CQP timeoutHenry Orosco
When CQP times out, send a request to LAN driver for reset. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Code cleanup, remove check of PBLE pagesHenry Orosco
Remove check for zero 'pages' of unallocated pbles calculated in add_pble_pool(); as it can never be true. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Correctly fail loopback connection if no listenerShiraz Saleem
Fail the connect and return the proper error code if a client is started with local IP address and there is no corresponding loopback listener. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Fill in IRD value when on connect requestShiraz Saleem
IRD is not populated on connect request and application is getting 0 for the value. Fill in the correct value on connect request. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Set TOS field in IP headerShiraz Saleem
Set the TOS field in IP header with the value passed in from application. If there is mismatch between the remote client's TOS and listener, set the listener Tos to the higher of the two values. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Add NULL check for ibqp event handlerShiraz Saleem
Add NULL check for ibqp event handler before calling it to report QP events, as it might not initialized. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Faisal Latif <faisal.latif@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Replace list_for_each_entry macro with safe versionMustafa Ismail
Use list_for_each_entry_safe macro for the IPv6 addr list as IPv6 addresses can be deleted while going through the list. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Add IP addr handling on netdev eventsMustafa Ismail
Disable listeners and disconnect all connected QPs on a netdev interface down event. On an interface up event, the listeners are re-enabled. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Add missing cleanup on device closeMustafa Ismail
On i40iw device close, disconnect all connected QPs by moving them to error state; and block further QPs, PDs and CQs from being created. Additionally, make sure all resources have been freed before deallocating the ibdev as part of the device close. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Add 2MB page supportHenry Orosco
Add support to allow each independent memory region to be configured for 2MB page size in addition to 4KB page size. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Utilize physically mapped memory regionsHenry Orosco
Add support to use physically mapped WQ's and MR's if determined that the OS registered user-memory for the region is physically contiguous. This feature will eliminate the need for unnecessarily setting up and using PBL's when not required. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Fix incorrect assignment of SQ headHenry Orosco
The SQ head is incorrectly incremented when the number of WQEs required is greater than the number available. The fix is to use the I40IW_RING_MOV_HEAD_BY_COUNT macro. This checks for the SQ full condition first and only if SQ has room for the request, then we move the head appropriately. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Remove variable flush_code and check to set qp->sq_flushHenry Orosco
The flush_code variable in i40iw_bld_terminate_hdr() is obsolete and the check to set qp->sq_flush is unreachable. Currently flush code is populated in setup_term_hdr() and both SQ and RQ are flushed always as part of the tear down flow. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Remove check on return from device_init_pestat()Henry Orosco
Remove unnecessary check for return code from device_init_pestat() and change func to void. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-05i40iw: Use runtime check for IS_ENABLED(CONFIG_IPV6)Henry Orosco
To be consistent, use the runtime check instead of conditional compile. Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-02 00:48:17 +0000