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path: root/drivers/infiniband/hw/mlx4/main.c
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2013-05-28net: pass info struct via netdevice notifierJiri Pirko1-1/+1
So far, only net_device * could be passed along with netdevice notifier event. This patch provides a possibility to pass custom structure able to provide info that event listener needs to know. Signed-off-by: Jiri Pirko <jiri@resnulli.us> v2->v3: fix typo on simeth shortened dev_getter shortened notifier_info struct name v1->v2: fix notifier_call parameter in call_netdevice_notifier() Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-25IB/mlx4: Advertise MW supportShani Michaeli1-0/+19
Indicate memory windows support through device capabilities, kernel verb entries and the relevant uverbs command mask entries. Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Shani Michaeli <shanim@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2013-02-25IB/mlx4: Remove redundant NULL check before kfreeSyam Sidhardhan1-2/+1
kfree on NULL pointer is a no-op. Signed-off-by: Syam Sidhardhan <s.syam@samsung.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-11-26mlx4: 64-byte CQE/EQE supportOr Gerlitz1-5/+22
ConnectX-3 devices can use either 64- or 32-byte completion queue entries (CQEs) and event queue entries (EQEs). Using 64-byte EQEs/CQEs performs better because each entry is aligned to a complete cacheline. This patch queries the HCA's capabilities, and if it supports 64-byte CQEs and EQES the driver will configure the HW to work in 64-byte mode. The 32-byte vs 64-byte mode is global per HCA and not per CQ or EQ. Since this mode is global, userspace (libmlx4) must be updated to work with the configured CQE size, and guests using SR-IOV virtual functions need to know both EQE and CQE size. In case one of the 64-byte CQE/EQE capabilities is activated, the patch makes sure that older guest drivers that use the QUERY_DEV_FUNC command (e.g as done in mlx4_core of Linux 3.3..3.6) will notice that they need an update to be able to work with the PPF. This is done by changing the returned pf_context_behaviour not to be zero any more. In case none of these capabilities is activated that value remains zero and older guest drivers can run OK. The SRIOV related flow is as follows 1. the PPF does the detection of the new capabilities using QUERY_DEV_CAP command. 2. the PPF activates the new capabilities using INIT_HCA. 3. the VF detects if the PPF activated the capabilities using QUERY_HCA, and if this is the case activates them for itself too. Note that the VF detects that it must be aware to the new PF behaviour using QUERY_FUNC_CAP. Steps 1 and 2 apply also for native mode. User space notification is done through a new field introduced in struct mlx4_ib_ucontext which holds device capabilities for which user space must take action. This changes the binary interface so the ABI towards libmlx4 exposed through uverbs is bumped from 3 to 4 but only when **needed** i.e. only when the driver does use 64-byte CQEs or future device capabilities which must be in sync by user space. This practice allows to work with unmodified libmlx4 on older devices (e.g A0, B0) which don't support 64-byte CQEs. In order to keep existing systems functional when they update to a newer kernel that contains these changes in VF and userspace ABI, a module parameter enable_64b_cqe_eqe must be set to enable 64-byte mode; the default is currently false. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30IB/mlx4: Create paravirt contexts for VFs when master IB driver initializesJack Morgenstein1-0/+11
When we have VFs and PFs on same host, the VFs are activated within the mlx4_core module before the mlx4_ib kernel module is loaded. When the mlx4_ib module initializes the PF (master), it now creates MAD paravirtualization contexts for any VFs that already active. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30mlx4: Activate SR-IOV mode for IBJack Morgenstein1-2/+6
Remove the error returns for IB ports from mlx4_ib_add, mlx4_INIT_PORT_wrapper, and mlx4_CLOSE_PORT_wrapper. Currently, SRIOV is supported only for devices for which the link layer is IB on all ports; RoCE support will be added later. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30IB/mlx4: Miscellaneous adjustments for SR-IOV IB supportJack Morgenstein1-8/+18
1. Allow only master to change node description. 2. Prevent AH leakage in send mads. 3. Take device part number from PCI structure, so that guests see the VF part number (and not the PF part number). 4. Place the device revision ID into caps structure at startup. 5. SET_PORT in update_gids_task needs to go through wrapper on master. 6. In mlx4_ib_event(), PORT_MGMT_EVENT needs be handled in a work queue on the master, since it propagates events to slaves using GEN_EQE. 7. Do not support FMR on slaves. 8. Add spinlock to slave_event(), since it is called both in interrupt context and in process context (due to 6 above, and also if smp_snoop is used). This fix was found and implemented by Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30mlx4: Add alias_guid mechanismJack Morgenstein1-6/+31
For IB ports, we paravirtualize the GUID at index 0 on slaves. The GUID at index 0 seen by a slave is the actual GUID occupying the GUID table at the slave-id index. The driver, by default, requests at startup time that subnet manager populate its entire guid table with GUIDs. These guids are then mapped (paravirtualized) to the slaves, and appear for each slave as its GUID at index 0. Until each slave has such a guid, its port status is DOWN. The guid table is cached to support special QP paravirtualization, and event propagation to slaves on guid change (we test to see if the guid really changed before propagating an event to the slave). To support this caching, add capability to __mlx4_ib_query_gid() to obtain the network view (i.e., physical view) gid at index X, not just the host (paravirtualized) view. Based on a patch from Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30IB/mlx4: Add multicast group (MCG) paravirtualization for SR-IOVOren Duer1-4/+14
MCG paravirtualization support includes: - Creating multicast groups by VFs, and keeping accounting of them - Leaving multicast groups by VFs - Updating SM only with real changes in the overall picture of MCGs status - Creation of MGID=0 groups (let SM choose MGID) Note that the MCG module maintains its own internal MCG object reference counts. The reason for this is that the IB core is used to track only the multicast groups joins generated by the PF it runs over. The PF IB core layer is unaware of slaves, so it cannot be used to keep track of MCG joins they generate. Signed-off-by: Oren Duer <oren@mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30mlx4: MAD_IFC paravirtualizationJack Morgenstein1-17/+47
The MAD_IFC firmware command fulfills two functions. First, it is used in the QP0/QP1 MAD-handling flow to obtain information from the FW (for answering queries), and for setting variables in the HCA (MAD SET packets). For this, MAD_IFC should provide the FW (physical) view of the data. This is the view that OpenSM needs. We call this the "network view". In the second case, MAD_IFC is used by various verbs to obtain data regarding the local HCA (e.g., ib_query_device()). We call this the "host view". This data needs to be paravirtualized. MAD_IFC therefore needs a wrapper function, and also needs another flag indicating whether it should provide the network view (when it is called by ib_process_mad in special-qp packet handling), or the host view (when it is called while implementing a verb). There are currently 2 flag parameters in mlx4_MAD_IFC already: ignore_bkey and ignore_mkey. These two parameters are replaced by a single "mad_ifc_flags" parameter, with different bits set for each flag. A third flag is added: "network-view/host-view". Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30mlx4: Implement QP paravirtualization and maintain phys_pkey_cache for smp_snoopJack Morgenstein1-0/+35
This requires: 1. Replacing the paravirtualized P_Key index (inserted by the guest) with the real P_Key index. 2. For UD QPs, placing the guest's true source GID index in the address path structure mgid field, and setting the ud_force_mgid bit so that the mgid is taken from the QP context and not from the WQE when posting sends. 3. For UC and RC QPs, placing the guest's true source GID index in the address path structure mgid field. 4. For tunnel and proxy QPs, setting the Q_Key value reserved for that proxy/tunnel pair. Since not all the above adjustments occur in all the QP transitions, the QP transitions require separate wrapper functions. Secondly, initialize the P_Key virtualization table to its default values: Master virtualized table is 1-1 with the real P_Key table, guest virtualized table has P_Key index 0 mapped to the real P_Key index 0, and all the other P_Key indices mapped to the reserved (invalid) P_Key at index 127. Finally, add logic in smp_snoop for maintaining the phys_P_Key_cache. and generating events on the master only if a P_Key actually changed. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30IB/mlx4: Initialize SR-IOV IB support for slaves in master contextJack Morgenstein1-7/+73
Allocate SR-IOV paravirtualization resources and MAD demuxing contexts on the master. This has two parts. The first part is to initialize the structures to contain the contexts. This is done at master startup time in mlx4_ib_init_sriov(). The second part is to actually create the tunneling resources required on the master to support a slave. This is performed the master detects that a slave has started up (MLX4_DEV_EVENT_SLAVE_INIT event generated when a slave initializes its comm channel). For the master, there is no such startup event, so it creates its own tunneling resources when it starts up. In addition, the master also creates the real special QPs. The ib_core layer on the master causes creation of proxy special QPs, since the master is also paravirtualized at the ib_core layer. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-08-10IB/mlx4: Fix possible deadlock on sm_lock spinlockJack Morgenstein1-2/+3
The sm_lock spinlock is taken in the process context by mlx4_ib_modify_device, and in the interrupt context by update_sm_ah, so we need to take that spinlock with irqsave, and release it with irqrestore. Lockdeps reports this as follows: [ INFO: inconsistent lock state ] 3.5.0+ #20 Not tainted inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. swapper/0/0 [HC1[1]:SC0[0]:HE0:SE1] takes: (&(&ibdev->sm_lock)->rlock){?.+...}, at: [<ffffffffa028af1d>] update_sm_ah+0xad/0x100 [mlx4_ib] {HARDIRQ-ON-W} state was registered at: [<ffffffff810b84a0>] mark_irqflags+0x120/0x190 [<ffffffff810b9ce7>] __lock_acquire+0x307/0x4c0 [<ffffffff810b9f51>] lock_acquire+0xb1/0x150 [<ffffffff815523b1>] _raw_spin_lock+0x41/0x50 [<ffffffffa028d563>] mlx4_ib_modify_device+0x63/0x240 [mlx4_ib] [<ffffffffa026d1fc>] ib_modify_device+0x1c/0x20 [ib_core] [<ffffffffa026c353>] set_node_desc+0x83/0xc0 [ib_core] [<ffffffff8136a150>] dev_attr_store+0x20/0x30 [<ffffffff81201fd6>] sysfs_write_file+0xe6/0x170 [<ffffffff8118da38>] vfs_write+0xc8/0x190 [<ffffffff8118dc01>] sys_write+0x51/0x90 [<ffffffff8155b869>] system_call_fastpath+0x16/0x1b ... *** DEADLOCK *** 1 lock held by swapper/0/0: stack backtrace: Pid: 0, comm: swapper/0 Not tainted 3.5.0+ #20 Call Trace: <IRQ> [<ffffffff810b7bea>] print_usage_bug+0x18a/0x190 [<ffffffff810b7370>] ? print_irq_inversion_bug+0x210/0x210 [<ffffffff810b7fb2>] mark_lock_irq+0xf2/0x280 [<ffffffff810b8290>] mark_lock+0x150/0x240 [<ffffffff810b84ef>] mark_irqflags+0x16f/0x190 [<ffffffff810b9ce7>] __lock_acquire+0x307/0x4c0 [<ffffffffa028af1d>] ? update_sm_ah+0xad/0x100 [mlx4_ib] [<ffffffff810b9f51>] lock_acquire+0xb1/0x150 [<ffffffffa028af1d>] ? update_sm_ah+0xad/0x100 [mlx4_ib] [<ffffffff815523b1>] _raw_spin_lock+0x41/0x50 [<ffffffffa028af1d>] ? update_sm_ah+0xad/0x100 [mlx4_ib] [<ffffffffa026b2fa>] ? ib_create_ah+0x1a/0x40 [ib_core] [<ffffffffa028af1d>] update_sm_ah+0xad/0x100 [mlx4_ib] [<ffffffff810c27c3>] ? is_module_address+0x23/0x30 [<ffffffffa028b05b>] handle_port_mgmt_change_event+0xeb/0x150 [mlx4_ib] [<ffffffffa028c177>] mlx4_ib_event+0x117/0x160 [mlx4_ib] [<ffffffff81552501>] ? _raw_spin_lock_irqsave+0x61/0x70 [<ffffffffa022718c>] mlx4_dispatch_event+0x6c/0x90 [mlx4_core] [<ffffffffa0221b40>] mlx4_eq_int+0x500/0x950 [mlx4_core] Reported by: Or Gerlitz <ogerlitz@mellanox.com> Tested-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-07-24Merge tag 'rdma-for-3.6' of ↵Linus Torvalds1-8/+25
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull InfiniBand/RDMA changes from Roland Dreier: - Updates to the qib low-level driver - First chunk of changes for SR-IOV support for mlx4 IB - RDMA CM support for IPv6-only binding - Other misc cleanups and fixes Fix up some add-add conflicts in include/linux/mlx4/device.h and drivers/net/ethernet/mellanox/mlx4/main.c * tag 'rdma-for-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (30 commits) IB/qib: checkpatch fixes IB/qib: Add congestion control agent implementation IB/qib: Reduce sdma_lock contention IB/qib: Fix an incorrect log message IB/qib: Fix QP RCU sparse warnings mlx4: Put physical GID and P_Key table sizes in mlx4_phys_caps struct and paravirtualize them mlx4_core: Allow guests to have IB ports mlx4_core: Implement mechanism for reserved Q_Keys net/mlx4_core: Free ICM table in case of error IB/cm: Destroy idr as part of the module init error flow mlx4_core: Remove double function declarations IB/mlx4: Fill the masked_atomic_cap attribute in query device IB/mthca: Fill in sq_sig_type in query QP IB/mthca: Warning about event for non-existent QPs should show event type IB/qib: Fix sparse RCU warnings in qib_keys.c net/mlx4_core: Initialize IB port capabilities for all slaves mlx4: Use port management change event instead of smp_snoop IB/qib: RCU locking for MR validation IB/qib: Avoid returning EBUSY from MR deregister IB/qib: Fix UC MR refs for immediate operations ...
2012-07-22Merge branches 'cma', 'cxgb4', 'misc', 'mlx4-sriov', 'mlx-cleanups', ↵Roland Dreier1-8/+25
'ocrdma' and 'qib' into for-linus
2012-07-19{NET,IB}/mlx4: Add rmap support to mlx4_assign_eqAmir Vadai1-1/+2
Enable callers of mlx4_assign_eq to supply a pointer to cpu_rmap. If supplied, the assigned IRQ is tracked using rmap infrastructure. Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-07-11IB/mlx4: Fill the masked_atomic_cap attribute in query deviceDotan Barak1-1/+1
When the user queries for device capabilities, fill in the masked_atomic_cap attribute with the real support level of atomic capabilities instead of using a hard coded value. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Reviewed-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-07-10mlx4: Use port management change event instead of smp_snoopJack Morgenstein1-6/+23
The port management change event can replace smp_snoop. If the capability bit for this event is set in dev-caps, the event is used (by the driver setting the PORT_MNG_CHG_EVENT bit in the async event mask in the MAP_EQ fw command). In this case, when the driver passes incoming SMP PORT_INFO SET mads to the FW, the FW generates port management change events to signal any changes to the driver. If the FW generates these events, smp_snoop shouldn't be invoked in ib_process_mad(), or duplicate events will occur (once from the FW-generated event, and once from smp_snoop). In the case where the FW does not generate port management change events smp_snoop needs to be invoked to create these events. The flow in smp_snoop has been modified to make use of the same procedures as in the fw-generated-event event case to generate the port management events (LID change, Client-rereg, Pkey change, and/or GID change). Port management change event handling required changing the mlx4_ib_event and mlx4_dispatch_event prototypes; the "param" argument (last argument) had to be changed to unsigned long in order to accomodate passing the EQE pointer. We also needed to move the definition of struct mlx4_eqe from net/mlx4.h to file device.h -- to make it available to the IB driver, to handle port management change events. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-07-08IB/mlx4: Add debug printsJack Morgenstein1-1/+1
Define pr_fmt and add some pr_debug prints. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-07-07{NET, IB}/mlx4: Add device managed flow steering firmware APIHadar Hen Zion1-7/+55
The driver is modified to support three operation modes. If supported by firmware use the device managed flow steering API, that which we call device managed steering mode. Else, if the firmware supports the B0 steering mode use it, and finally, if none of the above, use the A0 steering mode. When the steering mode is device managed, the code is modified such that L2 based rules set by the mlx4_en driver for Ethernet unicast and multicast, and the IB stack multicast attach calls done through the mlx4_ib driver are all routed to use the device managed API. When attaching rule using device managed flow steering API, the firmware returns a 64 bit registration id, which is to be provided during detach. Currently the firmware is always programmed during HCA initialization to use standard L2 hashing. Future work should be done to allow configuring the flow-steering hash function with common, non proprietary means. Signed-off-by: Hadar Hen Zion <hadarh@mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-06IB/mlx4: Fix max_wqe capacity reported from query deviceSagi Grimberg1-1/+1
1. Limit the max number of WQEs per QP reported when querying the device, so that ib_create_qp() will not fail for a QP size that the device claimed to support due to additional headroom WQEs being allocated. 2. Limit qp resources accepted for ib_create_qp() to the limits reported in ib_query_device(). In kernel space, make sure that the limits returned to the caller following qp creation also lie within the reported device limits. For userspace, report as before, and do adjustment in libmlx4 (so as not to break ABI). Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Sagi Grimberg <sagig@mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-06-03IB/mlx4: Fix EQ deallocation in legacy modeShlomo Pongratz1-12/+7
Commit e605b743f33d ("IB/mlx4: Increase the number of vectors (EQs) available for ULPs") didn't handle correctly the case where there aren't enough MSI-X vectors to increase the number of EQs, so only the legacy EQs are allocated. This results in an attempt to memset() to zero the EQ table which was never allocated and a kernel crash. Fix this by checking in the teardown flow if the table of EQs was ever allocated. Also remove some unneeded setting to zero of the EQ related fields in struct mlx4_ib_dev. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-18IB/mlx4: Fix mlx4_ib_add() error flowJack Morgenstein1-3/+3
We need to use a different loop index for mlx4_counter_alloc() and for device_create_file() iterations: the mlx4_counter_alloc() loop index is used in the error flow to free counters. If the same loop index is used for device_create_file() and, say, the device_create_file() loop fails on the first iteration, the allocated counters will not be freed. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-18IB/mlx4: Increase the number of vectors (EQs) available for ULPsShlomo Pongratz1-0/+84
Enable IB ULPs to use a larger portion of the device EQs (which map to IRQs). The mlx4_ib driver follows the mlx4_core framework of the EQs to be divided among the device ports. In this scheme, for each IB port, the number of allocated EQs follows the number of cores, subject to other system constraints, such as number available MSI-X vectors. Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-05-08IB/mlx4: Replace printk(KERN_yyy...) with pr_yyy(...)Shlomo Pongratz1-7/+7
Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> [ Replace one more printk_once() with pr_info_once(). - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-04-26Merge tag 'ib-fixes' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband Pull infiniband fixes from Roland Dreier: "A few fixes for regressions introduced in 3.4-rc1: - fix memory leak in mlx4 - fix two problems with new MAD response generation code" * tag 'ib-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/mlx4: Fix memory leaks in ib_link_query_port() IB/mad: Don't send response for failed MADs IB/mad: Set 'D' bit in response for unhandled MADs
2012-04-24IB/mlx4: Fix memory leaks in ib_link_query_port()Jesper Juhl1-1/+1
If the call to mlx4_MAD_IFC() fails in ib_link_query_port() we will currently do 'return err;' which will leak 'in_mad' and 'out_mad'. We should instead do 'goto out;' where we'll properly free the memory we previously allocated. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Acked-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-04-02IB/mlx4: Don't return an invalid speed when a port is downOr Gerlitz1-0/+5
When the IB port is down, the active_speed value returned by the MAD_IFC command is seven (7) which isn't among the defined IB speeds in enum ib_port_speed, and this invalid speed value is passed up to higher layers or applications who do port query. Fix that by setting the speed to be SDR -- the lowest possible -- when the port is down. Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-12Merge branches 'misc' and 'mlx4' into for-nextRoland Dreier1-44/+53
Conflicts: drivers/infiniband/hw/mlx4/main.c drivers/net/ethernet/mellanox/mlx4/main.c include/linux/mlx4/device.h
2012-03-12IB/mlx4: Fix info returned when querying IBoE portsOr Gerlitz1-44/+53
To issue a port query, use the QUERY_(Ethernet)_PORT command instead of the MAD_IFC command, since MAD_IFC attempts to query the firmware IB SMA, which is irrelevant for IBoE ports. This allows us to handle both 10Gb/s and 40Gb/s rates (e.g in sysfs), using QDR speed (10Gb/s) and width of 1X or 4X. Signed-off-by: Dotan Barak <dotanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-06mlx4_core: Get rid of redundant ext_port_cap flagsOr Gerlitz1-14/+11
While doing the work for commit a6f7feae6d ("IB/mlx4: pass SMP vendor-specific attribute MADs to firmware") we realized that the firmware would respond on all sorts of vendor-specific MADs. Therefore commit 97285b7817 ("mlx4_core: Add extended port capabilities support") adds redundant code into the driver, since there's no real reaon to maintain the extended capabilities of the port, as they can be queried on demand (e.g the FDR10 capability). This patch reverts commit 97285b7817 and removes the check for extended caps from the mlx4_ib driver port query flow. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-03-05IB: Use central enum for speed instead of hard-coded valuesOr Gerlitz1-5/+5
The kernel IB stack uses one enumeration for IB speed, which wasn't explicitly specified in the verbs header file. Add that enum, and use it all over the code. The IB speed/width notation is also used by iWARP and IBoE HW drivers, which use the convention of rate = speed * width to advertise their port link rate. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-02-26mlx4: Enforce device max FMR maps in FMR allocEli Cohen1-1/+1
ConnectX devices have a limit on the number of mappings that can be done on an FMR before having to call sync_tpt. The current mlx4_ib driver reports the limit correctly in max_map_per_fmr in .query_device(), but mlx4_core doesn't check it when actually allocating FMRs. Add a max_fmr_maps field to struct mlx4_caps and enforce this maximum value on FMR allocations. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-12-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+4
Conflicts: net/bluetooth/l2cap_core.c Just two overlapping changes, one added an initialization of a local variable, and another change added a new local variable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13mlx4_ib: disable SRIOV mode for IB ports (not yet supported)Jack Morgenstein1-0/+5
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13mlx4_core: Add "native" argument to mlx4_cmd and its callers (where needed)Jack Morgenstein1-3/+4
For SRIOV, some Hypervisor commands can be executed directly (native = 1). Others should go through the command wrapper flow (for tracking resource usage, for example, or for changing some HCA configurations that slaves need to be notified of). This patch sets the groundwork for this capability -- adding the correct value of "native" in each case. Note that if SRIOV is not activated, this parameter has no effect. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-13mlx4: Extanding port_mask functionalityJack Morgenstein1-1/+1
Port mask now has additional state. Port can be set as "none". In this case neither the mlx4_en or mlx4_ib drivers take ownership of the port. In multifunction mode there is an option to set the vfs as single ported devices. (in single function mode, both physical ports belong to same function) Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06IB/mlx4: Fix shutdown crash accessing a non-existent bitmapRoland Dreier1-2/+4
Commit cfcde11c3d7a ("IB/mlx4: Use flow counters on IBoE ports") added code that sets elements of counters[] to -1 if no counter is allocated, but then goes ahead and passes every entry to mlx4_counter_free() on shutdown. This is a bad idea, especially if MLX4_DEV_CAP_FLAG_COUNTERS isn't set so there isn't even an underlying bitmap to free from. Tested-by: Sean Hefty <sean.hefty@intel.com> Cc: <stable@kernel.org> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-11-01Merge branches 'amso1100', 'cma', 'cxgb3', 'cxgb4', 'fdr', 'ipath', 'ipoib', ↵Roland Dreier1-3/+103
'misc', 'mlx4', 'misc', 'nes', 'qib' and 'xrc' into for-next
2011-10-31IB/mlx4: Enable 4K mtu for IBoEOr Gerlitz1-1/+1
The IBoE port MTU is derived from the corresponding Ethernet netdevice MTU, which can support jumbo frames of 9K, and hence surely supports the max IB mtu of 4K. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-28IB/mlx4: Configure extended active speedsMarcel Apfelbaum1-1/+38
Set the extended active speeds based on the hardware configuration. Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il> Reviewed-by: Hal Rosenstock <hal@mellanox.com> [ Move FDR-10 handling into ib_link_query_port(). - Roland ] Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-13RDMA/uverbs: Export ib_open_qp() capability to user spaceSean Hefty1-1/+2
Allow processes that share the same XRC domain to open an existing shareable QP. This permits those processes to receive events on the shared QP and transfer ownership, so that any process may modify the QP. The latter allows the creating process to exit, while a remaining process can still transition it for path migration purposes. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-13IB/mlx4: Add support for XRC QPsSean Hefty1-0/+2
Support the creation of XRC INI and TGT QPs. To handle the case where a CQ or PD is not provided, we allocate them internally with the xrcd. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-13IB/mlx4: Add support for XRC SRQsSean Hefty1-1/+2
Allow the user to create XRC SRQs. This patch is based on a patch from Jack Morgenstrein <jackm@dev.mellanox.co.il>. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-10-13IB/mlx4: Add support for XRC domainsSean Hefty1-0/+59
Support creating and destroying XRC domains. Any sharing of the XRCD is managed above the low-level driver. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-18IB/mlx4: Use flow counters on IBoE portsOr Gerlitz1-2/+17
Allocate flow counter per Ethernet/IBoE port, and attach this counter to all the QPs created on that port. Based on patch by Eli Cohen <eli@mellanox.co.il>. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-07-18IB/mlx4: Generate GID change events in IBoE codeOr Gerlitz1-1/+1
IBoE doesn't use LIDs. Use the GID change event to update the IB core cache for addition/deletion of GIDs. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.co.il> Signed-off-by: Roland Dreier <roland@purestorage.com>
2011-03-23mlx4: generalization of multicast steering.Yevgeny Petrilin1-5/+5
The same packet steering mechanism would be used both for IB and Ethernet, Both multicasts and unicasts. This commit prepares the general infrastructure for this. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-23mlx4_en: Reporting HW revision in ethtool -iYevgeny Petrilin1-1/+0
HW revision is derived from device ID and rev id. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-12IB/mlx4: Handle protocol field in multicast tableAleksey Senin1-4/+5
The newest device firmware stores IB vs. Ethernet protocol in two bits in members_count field of multicast group table (0: Infiniband, 1: Ethernet). When changing the QP members count for a multicast group, it important not to reset this information. When calling multicast attach first time, the protocol type should be specified. In this patch we always set it IB, but in the future we will handle Ethernet too. When looking for a QP, the protocol type shoud be checked too. Signed-off-by: Aleksey Senin <alekseys@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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