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* MFC 273806,289103,289201,289338,289578,293185,294474,294610,297124,297368,jhb2016-12-011-5/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 297406,300875,300888,301158,301896,301897,304838: Pull in most of the Chelsio and iWARP related changes from stable/11 into stable/10. A few changes from 278886 (OFED 1.2) were also included though the full merge is not: - The find_gid_port() function in infiband/core/cma.c. - Addition of the 'ord' and 'ird' fields to 'struct iw_cm_event'. 273806: Userspace library for Chelsio's Terminator 5 based iWARP RNICs (pretty much every T5 card that does _not_ have "-SO" in its name is RDMA capable). This plugs into the OFED verbs framework and allows userspace RDMA applications to work over T5 RNICs. Tested with rping. 289103: iw_cxgbe: fix for page fault in cm_close_handler(). This is roughly the iw_cxgbe equivalent of https://github.com/torvalds/linux/commit/be13b2dff8c4e41846477b22cc5c164ea5a6ac2e ----------------- RDMA/cxgb4: Connect_request_upcall fixes When processing an MPA Start Request, if the listening endpoint is DEAD, then abort the connection. If the IWCM returns an error, then we must abort the connection and release resources. Also abort_connection() should not post a CLOSE event, so clean that up too. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <roland@purestorage.com> ----------------- 289201: iw_cxgbe: MPA v2 is always available. 289338: iw_cxgbe: use correct RFC number. 289578: Merge LinuxKPI changes from DragonflyBSD: - Define the kref structure identical to the one found in Linux. - Update clients referring inside the kref structure. - Implement kref_sub() for FreeBSD. 293185: iw_cxgbe: Shut down the socket but do not close the fd in case of error. The fd is closed later in this case. This fixes a "SS_NOFDREF on enter" panic. 294474: iw_cxgbe: fix a couple of problems int the RDMA_TERMINATE handler. a) Look for the CPL in the payload buffer instead of the descriptor. b) Retrieve the socket associated with the tid with the inpcb lock held. 294610: Fix for iWARP servers that listen on INADDR_ANY. The iWARP Connection Manager (CM) on FreeBSD creates a TCP socket to represent an iWARP endpoint when the connection is over TCP. For servers the current approach is to invoke create_listen callback for each iWARP RNIC registered with the CM. This doesn't work too well for INADDR_ANY because a listen on any TCP socket already notifies all hardware TOEs/RNICs of the new listener. This patch fixes the server side of things for FreeBSD. We've tried to keep all these modifications in the iWARP/TCP specific parts of the OFED infrastructure as much as possible. 297124: iw_cxgbe/libcxgb4: Pull in many applicable fixes from the upstream Linux iWARP driver and userspace library to the FreeBSD iw_cxgbe and libcxgb4. This commit includes internal changesets 6785 8111 8149 8478 8617 8648 8650 9110 9143 9440 9511 9894 10164 10261 10450 10980 10981 10982 11730 11792 12218 12220 12222 12223 12225 12226 12227 12228 12229 12654. 297368: cxgbe/iw_cxgbe: Fix for stray "start_ep_timer timer already started!" messages. 297406: Remove unnecessary dequeue_mutex (added in r294610) from the iWARP connection manager. Examining so_comp without synchronization with iw_so_event_handler is a harmless race. 300875: iw_cxgbe: Use vmem(9) to manage PBL and RQT allocations. 300888: iw_cxgbe: Plug a lock leak in process_mpa_request(). If the parent is DEAD or connect_request_upcall() fails, the parent mutex is left locked. This leads to a hang when process_mpa_request() is called again for another child of the listening endpoint. 301158: iw_cxgbe: Fix panic that occurs when c4iw_ev_handler tries to acquire comp_handler_lock but c4iw_destroy_cq has already freed the CQ memory (which is where the lock resides). 301896: Fix bug in iwcm that caused a panic in iw_cm_wq when krping is run repeatedly in a tight loop. 301897: iw_cxgbe: Make sure that send_abort results in a TCP RST and not a FIN. Release the hold on ep->com immediately after sending the RST. This fixes a bug that sometimes leaves userspace iWARP tools hung when the user presses ^C. 304838: Do not free an uninitialized pointer on soaccept failure in the iWARP connection manager. Submitted by: Krishnamraju Eraparaju @ Chelsio (original patch) Sponsored by: Chelsio Communications
* MFC 306480sephe2016-10-111-3/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | linuxkpi: Fix PCI BAR lazy allocation support. FreeBSD supports lazy allocation of PCI BAR, that is, when a device driver's attach method is invoked, even if the device's PCI BAR address wasn't initialized, the invocation of bus_alloc_resource_any() (the call chain: pci_alloc_resource() -> pci_alloc_multi_resource() -> pci_reserve_map() -> pci_write_bar()) would allocate a proper address for the PCI BAR and write this 'lazy allocated' address into the PCI BAR. This model works fine for native FreeBSD device drivers, but _not_ for device drivers shared with Linux (e.g. dev/mlx5/mlx5_core/mlx5_main.c and ofed/drivers/net/mlx4/main.c. Both of them use pci_request_regions(), which doesn't work properly with the PCI BAR lazy allocation, because pci_resource_type() -> _pci_get_rle() always returns NULL, so pci_request_regions() doesn't have the opportunity to invoke bus_alloc_resource_any(). We now use pci_find_bar() in pci_resource_type(), which is able to locate all available PCI BARs even if some of them will be lazy allocated. Submitted by: Dexuan Cui <decui microsoft com> Reviewed by: hps Sponsored by: Microsoft Differential Revision: https://reviews.freebsd.org/D8071
* MFC r306451:hselasky2016-10-101-9/+20
| | | | | | | | The IORESOURCE_XXX defines should resemble a bitmask while SYS_RES_XXX are not bitmasks. Fix return value of pci_resource_flags() to reflect this change. Sponsored by: Mellanox Technologies
* MFC r301877:markj2016-07-161-1/+2
| | | | Add a missing error check for a malloc() call in idr_get().
* MFC r301544:hselasky2016-06-292-3/+6
| | | | | | | Fallback to arc4rand() in the LinuxKPI when read_random() returns zero. This can happen for virtual machines. Sponsored by: Mellanox Technologies
* MFC r294832:hselasky2016-06-031-0/+30
| | | | | | | Implement ether_addr_equal(), ether_addr_equal_64bits() and random_ether_addr() for the LinuxKPI. Sponsored by: Mellanox Technologies
* MFC r297444:hselasky2016-04-071-2/+2
| | | | | | Fix bugs in currently unused bit searching loop. Sponsored by: Mellanox Technologies
* MFC 294366:jhb2016-01-231-1/+1
| | | | | | | | | | | | | | Initialize vm_page_prot to VM_MEMATTR_DEFAULT instead of 0. If a driver's Linux mmap callback passed vm_page_prot through unchanged, then linux_dev_mmap_single() would try to apply whatever VM_MEMATTR_xxx value 0 is to the mapping. On x86, VM_MEMATTR_DEFAULT is the PAT value for write-back (WB) which is 6, while 0 maps to the PAT value for uncacheable (UC). Thus, any mmap request that did not explicitly set page_prot was tried to map memory as UC triggering the warning in sg_pager_getpages(). Sponsored by: Chelsio Communications
* MFC r292989:hselasky2016-01-121-3/+4
| | | | | Handle when filedescriptors are closed before initialized. An early fdclose() call can cause fget_unlocked() to fail.
* MFC r289563,r291481,r292537,r292538,r292542,r292543,r292544 and r292834:hselasky2016-01-047-93/+260
| | | | | | | | | | | | | | | | | | | | Update the LinuxKPI: - Add more functions and types. - Implement ACCESS_ONCE(), WRITE_ONCE() and READ_ONCE(). - Implement sleepable RCU mechanism using shared exclusive locks. - Minor workqueue cleanup: - Make some functions global instead of inline to ease debugging. - Fix some minor style issues. - In the zero delay case in queue_delayed_work() use the return value from taskqueue_enqueue() instead of reading "ta_pending" unlocked and also ensure the callout is stopped before proceeding. - Implement drain_workqueue() function. - Reduce memory consumption when allocating kobject strings in the LinuxKPI. Compute string length before allocating memory instead of using fixed size allocations. Make kobject_set_name_vargs() global instead of inline to save some bytes when compiling. Sponsored by: Mellanox Technologies
* MFC r270212,r270332:ngie2015-12-301-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This helps reduce the diff in pci(4) between head and stable/10 to help pave the way for bringing in IOV/nv(9) more cleanly Differential Revision: https://reviews.freebsd.org/D4728 Relnotes: yes Reviewed by: hselasky (ofed piece), royger (overall change) Sponsored by: EMC / Isilon Storage Division r270212 (by royger): pci: make MSI(-X) enable and disable methods of the PCI bus Make the functions pci_disable_msi, pci_enable_msi and pci_enable_msix methods of the newbus PCI bus. This code should not include any functional change. Sponsored by: Citrix Systems R&D Reviewed by: imp, jhb Differential Revision: https://reviews.freebsd.org/D354 dev/pci/pci.c: - Convert the mentioned functions to newbus methods. - Fix the callers of the converted functions. sys/dev/pci/pci_private.h: dev/pci/pci_if.m: - Declare the new methods. dev/pci/pcivar.h: - Add helpers to call the newbus methods. ofed/include/linux/pci.h: - Add define to prevent the ofed version of pci_enable_msix from clashing with the FreeBSD native version. r270332 (by royger): pci: add a new pci_child_added newbus method. This is needed so when running under Xen the calls to pci_child_added can be intercepted and a custom Xen method can be used to register those devices with Xen. This should not include any functional change, since the Xen implementation will be added in a following patch and the native implementation is a noop. Sponsored by: Citrix Systems R&D Reviewed by: jhb dev/pci/pci.c: dev/pci/pci_if.m: dev/pci/pci_private.h: dev/pci/pcivar.h: - Add the pci_child_added newbus method.
* MFC r290003:hselasky2015-12-141-1/+18
| | | | | | | Add support for binding IRQs to CPUs in the LinuxKPI. The new function added is for BSD only and does not exist in Linux. Sponsored by: Mellanox Technologies
* MFC r290710, r291694, r291699 and r291793:hselasky2015-12-114-2/+17
| | | | | | | | | | | | | | | | | | | - Fix print formatting compile warnings for Sparc64 and PowerPC platforms. - Updated the mlx4 and mlxen drivers to the latest version, v2.1.6: - Added support for dumping the SFP EEPROM content to dmesg. - Fixed handling of network interface capability IOCTLs. - Fixed race when loading and unloading the mlxen driver by applying appropriate locking. - Removed two unused C-files. - Convert the mlxen driver to use the BUSDMA(9) APIs instead of vtophys() when loading mbufs for transmission and reception. While at it all pointer arithmetic and cast qualifier issues were fixed, mostly related to transmission and reception. - Fix i386 build WITH_OFED=YES. Remove some redundant KASSERTs. Sponsored by: Mellanox Technologies Differential Revision: https://reviews.freebsd.org/D4283 Differential Revision: https://reviews.freebsd.org/D4284
* MFC r291693:hselasky2015-12-111-0/+19
| | | | | | | | Add some structures and defines which will be used when decoding small form factor, SFF, standards compliant ethernet EEPROMs. Obtained from: Linux Sponsored by: Mellanox Technologies
* MFC r291690:hselasky2015-12-111-4/+0
| | | | | | | Remove incorrect defines. The proper version of these macros is defined in linux/etherdevice.h. Sponsored by: Mellanox Technologies
* MFC 287440:jhb2015-09-112-25/+22
| | | | | | | | | | | | | | | Currently the Linux character device mmap handling only supports mmap operations that map a single page that has an associated vm_page_t. This does not permit mapping larger regions (such as a PCI memory BAR) and it does not permit mapping addresses beyond the top of RAM (such as a 64-bit BAR located above the top of RAM). Instead of using a single OBJT_DEVICE object and passing the physaddr via the offset as a hack, create a new sglist and OBJT_SG object for each mmap request. The requested memory attribute is applied to the object thus affecting all pages mapped by the request. Sponsored by: Chelsio
* MFC r286418:markj2015-08-271-2/+2
| | | | | ipv4_is_zeronet() and ipv4_is_loopback() expect an address in network order, but IN_ZERONET and IN_LOOPBACK expect it in host order.
* Merge r283612:glebius2015-08-171-0/+23
| | | | | | | | | | | | | | Add SIOCGI2C ioctl support to the driver. Would work only on ConnectX-3 with fresh firmware. The low level code is based on code provided by Mellanox. Thanks to Mellanox and their distributor Must (http://mustcompany.ru) for providing hardware. In collaboration with: Andre Melkoumian <andre mellanox.com> Reviewed by: hselasky Sponsored by: Netflix Sponsored by: Nginx, Inc.
* MFC r285088:hselasky2015-07-112-16/+19
| | | | | | | | | | Fix broken implementation of "kvasprintf()" function by adding missing kmalloc() call. Make function global instead of static inline to fix compiler warnings about passing variable argument lists to inline functions. Sponsored by: Mellanox Technologies Approved by: re, gjb
* MFC r277229:np2015-06-171-1/+1
| | | | | Use parentheses instead of close proximity to ensure layer + 1 is evaluated before the rest of the expression.
* MFC r282331:markj2015-05-293-11/+25
| | | | | | | | | | | | | | | Don't drop the idr lock before verifying that the newly-inserted element is present in the tree. MFC r282741: find_next_bit() and find_next_zero_bit(): if the caller-specified offset lies within the last block of the bit set and no bits are set beyond the offset, terminate the search immediately instead of continuing as though there are further blocks in the set and subsequently returning an incorrect result. MFC r282743: Ensure that msecs_to_jiffies(0) == 0.
* MFC r277396, r278681, r278865, r278924, r279205, r280208,hselasky2015-05-0519-176/+344
| | | | | | | | | | | | | | | | | | | | | r280210, r280764 and r280768: Update the Linux compatibility layer: - Add more functions. - Add some missing includes which are needed when the header files are not included in a particular order. - The kasprintf() function cannot be inlined due to using a variable number of arguments. Move it to a C-file. - Fix problems about 32-bit ticks wraparound and unsigned long conversion. Jiffies or ticks in FreeBSD have integer type and are not long. - Add missing "order_base_2()" macro. - Fix BUILD_BUG_ON() macro. - Declare a missing symbol which is needed when compiling without -O2 - Clean up header file inclusions in the linux/completion.h, linux/in.h and linux/fs.h header files. Sponsored by: Mellanox Technologies
* MFC r280211:hselasky2015-03-251-2/+2
| | | | | | Add missing void pointer argument to SYSINIT() functions. Sponsored by: Mellanox Technologies
* MFC r279587:hselasky2015-03-071-0/+2
| | | | | | | Define PTR_ALIGN() macro which will be needed coming Mellanox driver releases. Sponsored by: Mellanox Technologies
* MFC r278866:hselasky2015-03-071-0/+40
| | | | | | | Define standard formatting strings to print GIDs in a separate header file. Sponsored by: Mellanox Technologies
* MFC r279584:hselasky2015-03-072-4/+17
| | | | | | | | | | | | | | | | | | | Updates for the Mellanox ethernet driver > List of fixes: * use correct format for GID printouts * double array indexing * spelling in printouts * void pointer arithmetic * allow more receive rings * correct maximum number of transmit rings * use "const" instead of "static" for constants * check for invalid VLAN tags * check for lack of IRQ resources > Added more hardware specific defines > Added more verbose printouts of firmware status codes Sponsored by: Mellanox Technologies
* MFC r276749:hselasky2015-01-136-36/+84
| | | | | | | | | | | | | | | | | | | | Fixes and updates for the Linux compatibility layer: - Remove unsupported "bus" field from "struct pci_dev". - Fix logic inside "pci_enable_msix()" when the number of allocated interrupts are less than the number of available interrupts. - Update header files included from "list.h". - Ensure that "idr_destroy()" removes all entries before destroying the IDR root node(s). - Set the "device->release" function so that we don't leak memory at device destruction. - Use FreeBSD's "log()" function for certain debug printouts. - Put parenthesis around arguments inside the min, max, min_t and max_t macros. - Make sure we don't leak file descriptors by dropping the extra file reference counts done by the FreeBSD kernel when calling falloc() and fget_unlocked(). MFC after: 1 week Sponsored by: Mellanox Technologies
* Merge r275599:rodrigc2015-01-061-0/+2
| | | | | | | | | | | | | Use CURVNET macros inside inet_get_local_port_range() function. Without this fix, a kernel with VIMAGE + Infiniband will panic on bootup. Certain necessary #include statements require LIST_HEAD. Add these includes to ofed/include/linux/list.h, because LIST_HEAD is specifically overridden in this file. PR: 191468 Differential Revision: D1279 Reviewed by: hselasky
* MFC r275636:hselasky2014-12-121-2/+2
| | | | | | Move OFED init a bit earlier so that PXE boot works. Sponsored by: Mellanox Technologies
* MFC r272683:hselasky2014-10-211-1/+0
| | | | | | | - Fix compile warning when compiling with GCC. - Add missed chunk in previous driver code MFC. Sponsored by: Mellanox Technologies
* MFC r273135:hselasky2014-10-1810-104/+234
| | | | | | | | | | | | | | | | | Update the OFED Linux compatibility layer and Mellanox hardware driver(s): - Properly name an inclusion guard - Fix compile warnings regarding unsigned enums - Add two new sysctl nodes - Remove all empty linux header files - Make an error printout more verbose - Use "mod_delayed_work()" instead of cancelling and starting a timeout. - Implement more Linux scatterlist functions. Sponsored by: Mellanox Technologies
* MFC r272027:hselasky2014-10-026-82/+369
| | | | | | | | | | | | | | | | | | | Hardware driver update from Mellanox Technologies, including: - improved performance - better stability - new features - bugfixes Supported HCAs: - ConnectX-2 - ConnectX-3 - ConnectX-3 Pro NOTE: - TSO feature needs r271946, which is not yet merged. Sponsored by: Mellanox Technologies Approved by: re, glebius
* MFC r270710 and r270821:hselasky2014-09-0482-234/+1188
| | | | | | | | | | | | | | | - Update the OFED Linux Emulation layer as a preparation for a hardware driver update from Mellanox Technologies. - Remove empty files from the OFED Linux Emulation layer. - Fix compile warnings related to printf() and the "%lld" and "%llx" format specifiers. - Add some missing 2-clause BSD copyrights. - Add "Mellanox Technologies, Ltd." to list of copyright holders. - Add some new compatibility files. - Fix order of uninit in the mlx4ib module to avoid crash at unload using the new module_exit_order() function. Sponsored by: Mellanox Technologies
* MFC r269859:hselasky2014-08-191-20/+64
| | | | | | Fix for memory leak. Sponsored by: Mellanox Technologies
* MFC r268316:hselasky2014-08-121-3/+8
| | | | | | | | | Fix OFED startup order: All SYSINIT()'s and modules should be loaded prior to starting "/sbin/init" which will run all the "/etc/rc.d/xxx" scripts. Else there can be a race configuring the interfaces via "/etc/rc.conf". Sponsored by: Mellanox Technologies
* MFC r267395:hselasky2014-06-151-5/+5
| | | | | - Fix out of range shifting bug in bitops.h. - Make code a bit easier to read by adding parenthesis.
* MFC: r257862, r257863, r257864alfred2013-11-081-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | r257862: Use explicit long cast to avoid overflow in bitopts. This was causing problems with the buddy allocator inside of ofed. r257863: Fix for bad performance when mtu is increased. Update the auto moderation behavior in the mlxen driver to match the new LINUX OFED code. r257864: Do not use a sleep lock when protecting the driver flags. This was causing a locking issue with lagg. Approved by: re
* Fix __free_pages() in the linux shim.alfred2013-10-171-3/+3
| | | | | | | | | __free_pages() is actaully supposed to take a "struct page *" not an address. MFC: 256546 Approved by: re
* Fix mis-merge of upstream fix.alfred2013-10-011-4/+0
| | | | | | | | We would accidentally make the string one byte too short. Submitted by: Orit Moskovich (oritm mellanox.com) Approved by: re
* Update OFED to Linux 3.7 and update Mellanox drivers.alfred2013-09-2925-176/+1375
| | | | | | | | | | | | | | | | | | | | | | | Update the OFED Infiniband core to the version supplied in Linux version 3.7. The update to OFED is nearly all additional defines and functions with the exception of the addition of additional parameters to ib_register_device() and the reg_user_mr callback. In addition the ibcore (Infiniband core) and ipoib (IP over Infiniband) have both been made into completely loadable modules to facilitate testing of the OFED stack in FreeBSD. Finally the Mellanox Infiniband drivers are now updated to the latest version shipping with Linux 3.7. Submitted by: Mellanox FreeBSD driver team: Oded Shanoon (odeds mellanox.com), Meny Yossefi (menyy mellanox.com), Orit Moskovich (oritm mellanox.com) Approved by: re
* Handle cases where capability rights are not provided.pjd2013-09-051-3/+9
| | | | Reported by: kib
* Fix implementation of sock_getname.np2013-08-231-5/+5
| | | | MFC after: 1 week
* Make sendfile() a method in the struct fileops. Currently onlyglebius2013-08-151-0/+1
| | | | | | | | vnode backed file descriptors have this method implemented. Reviewed by: kib Sponsored by: Nginx, Inc. Sponsored by: Netflix
* - Correctly handle various edge cases in sysfs emulation.jeff2013-08-091-4/+7
| | | | Sponsored by: EMC / Isilon Storage Division
* - Use the correct type in the linux bitops emulation.jeff2013-08-091-4/+9
| | | | Submitted by: Maxim Ignatenko <gelraen.ua@gmail.com>
* Split the pagequeues per NUMA domains, and split pageademon processkib2013-08-071-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into threads each processing queue in a single domain. The structure of the pagedaemons and queues is kept intact, most of the changes come from the need for code to find an owning page queue for given page, calculated from the segment containing the page. The tie between NUMA domain and pagedaemon thread/pagequeue split is rather arbitrary, the multithreaded daemon could be allowed for the single-domain machines, or one domain might be split into several page domains, to further increase concurrency. Right now, each pagedaemon thread tries to reach the global target, precalculated at the start of the pass. This is not optimal, since it could cause excessive page deactivation and freeing. The code should be changed to re-check the global page deficit state in the loop after some number of iterations. The pagedaemons reach the quorum before starting the OOM, since one thread inability to meet the target is normal for split queues. Only when all pagedaemons fail to produce enough reusable pages, OOM is started by single selected thread. Launder is modified to take into account the segments layout with regard to the region for which cleaning is performed. Based on the preliminary patch by jeff, sponsored by EMC / Isilon Storage Division. Reviewed by: alc Tested by: pho Sponsored by: The FreeBSD Foundation
* Replace kernel virtual address space allocation with vmem. This providesjeff2013-08-073-9/+9
| | | | | | | | | | | | | transparent layering and better fragmentation. - Normalize functions that allocate memory to use kmem_* - Those that allocate address space are named kva_* - Those that operate on maps are named kmap_* - Implement recursive allocation handling for kmem_arena in vmem. Reviewed by: alc Tested by: pho Sponsored by: EMC / Isilon Storage Division
* rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LASTavg2013-07-241-3/+3
| | | | | | | | | | | | | | | | Also directly call swapper() at the end of mi_startup instead of relying on swapper being the last thing in sysinits order. Rationale: - "RUN_SCHEDULER" was misleading, scheduling already takes place at that stage - "scheduler" was misleading, the function swaps in the swapped out processes - another SYSINIT(SI_SUB_RUN_SCHEDULER, SI_ORDER_ANY) could never be invoked depending on its relative order with scheduler; this was not obvious and the bug actually used to exist Reviewed by: kib (ealier version) MFC after: 14 days
* Rework the previous fix for the IB vs Ethernet sysctl handler to be morejhb2013-07-181-17/+15
| | | | | | | | | | | | | | | generic and apply to all sysfs attributes: - Use sysctl_handle_string() instead of reimplementing it. - Remove trailing newline from the current value before passing it to userland and append a newline to the new string value before passing it to the attribute's store function. - Don't leak the temporary buffer if the first error check triggers. - Revert earlier change to mlx4 port mode handler. PR: kern/174213 Submitted by: Garrett Cooper Reviewed by: Shakar Klein @ Mellanox MFC after: 1 week
* Allow mlx4 devices to switch from Ethernet to Infiniband (and vice versa):jhb2013-07-081-2/+7
| | | | | | | | | | | | - Fix sysctl wrapper for sysfs attributes to properly handle new string values similar to sysctl_handle_string() (only copyin the user's supplied length and nul-terminate the string). - Don't check for a trailing newline when evaluating the desired operating mode of a mlx4 device. PR: kern/179999 Submitted by: Shahar Klein <shahark@mellanox.com> MFC after: 1 week
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