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path: root/drivers/net/ethernet/mellanox
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* mlx4_core: map async events to arbitrary slave eqsMarcel Apfelbaum2012-01-22
| | | | | | | | | Slave async events were mapped to single eq. This patch fixes this issue, so the slaves can map the async events to any eq. Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_core: Fix mtt profile issueMarcel Apfelbaum2012-01-22
| | | | | | | | | | Num mtts from profile is really the number of mtt segments. Thus, in make profile, to get the proper number of MTT entries, must multiply num_mtts by mtts per segment. Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_core: removed function index from vf.Marcel Apfelbaum2012-01-22
| | | | | | | | The Virtual Functions should not be aware their function number. Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_en: eth statistics modificationEugenia Emantayev2012-01-22
| | | | | | | | | | | In native mode display all available staticstics. In SRIOV mode on VF display only SW counters statistics, in SRIOV mode on hypervisor display SW counters and errors (got from FW) statistics. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4: VF is not allowed to perform dump statsEugenia Emantayev2012-01-22
| | | | | | | | | In multifunction mode - DUMP_STATS command is not executed for VFs. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_en: clear all eth statistics when port goes upEugenia Emantayev2012-01-22
| | | | | | | | Bug fix: Not all stats fields were cleared. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Reviewed-by: Yevgeny Petriln <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_en: set number of rx rings used by RSS using ethtoolYevgeny Petrilin2012-01-18
| | | | | | | | | Value must be a power of 2 due to HW limitation. Driver supports only 'equal' mode in ethtool and can't be set by using weights. Signed-off-by: Amir Vadai <amirv@mellanox.co.il> Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_core: Elaborating limitation on VF port optionsYevgeny Petrilin2012-01-03
| | | | | | | | Showing which capabilities are not passed to VF when executing QUERY_PORT Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_core: fix mtt range deallocationMarcel Apfelbaum2012-01-03
| | | | | | | | | | | The mtt range was allocated in mtt units but deallocated in segments. Among the rest, this caused crash during hotplug removal Reported-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Marcel Apfelbaum <marcela@mellanox.co.il> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Tested-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-01-02
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| * mlx4_en: nullify cq->vector field when closing completion queueYevgeny Petrilin2011-12-30
| | | | | | | | | | | | | | Caused loss of connectivity when changing ring size. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: limiting VF port optionsYevgeny Petrilin2011-12-29
| | | | | | | | | | | | | | | | | | At the moment VFs can only operate in Eth mode. In addition we don't want the VF to attempt link sensing, so we block this option as well. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: using array index for sense_allowedYevgeny Petrilin2011-12-29
| | | | | | | | | | Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4: Add missing include of linux/slab.hAxel Lin2011-12-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Include linux/slab.h to fix below build error: CC drivers/net/ethernet/mellanox/mlx4/resource_tracker.o drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_init_resource_tracker': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:233: error: implicit declaration of function 'kzalloc' drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:234: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_free_resource_tracker': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:264: error: implicit declaration of function 'kfree' drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_qp_tr': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:370: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_mtt_tr': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:386: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_mpt_tr': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:402: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_eq_tr': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:417: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_cq_tr': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:431: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_srq_tr': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:446: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'alloc_counter_tr': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:461: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'add_res_range': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:521: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mac_add_to_slave': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:1193: warning: assignment makes pointer from integer without a cast drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'add_mcg_res': drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:2521: warning: assignment makes pointer from integer without a cast make[5]: *** [drivers/net/ethernet/mellanox/mlx4/resource_tracker.o] Error 1 make[4]: *** [drivers/net/ethernet/mellanox/mlx4] Error 2 make[3]: *** [drivers/net/ethernet/mellanox] Error 2 make[2]: *** [drivers/net/ethernet] Error 2 make[1]: *** [drivers/net] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_en: FIX: Setting default_qpn before using itYevgeny Petrilin2011-12-20
| | | | | | | | | | | | | | | | | | | | When UDP RSS is enabled, we use same QPN for TCP and UDP ranges The bug is that the default_qpn was used base UDP qpn before it was set. Fixes bug introduced in commit: 1202d460b1df3a77fda66f4ba5f90ae3527dd42f Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | module_param: make bool parameters really bool (net & drivers/net)Rusty Russell2011-12-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. (Thanks to Joe Perches for suggesting coccinelle for 0/1 -> true/false). Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4: Fixing wrong error codes in communication channelYevgeny Petrilin2011-12-19
| | | | | | | | | | | | | | | | | | | | The communication channel is HW interface from PF point of view So the command return status should be stored as HW error code and only then translated to errno values. Reporetd-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4: not using spin_lock_irq when getting vf by resource.Yevgeny Petrilin2011-12-19
| | | | | | | | | | | | | | | | The function is always called from irq context, changing the call to spin_lock(). Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_en: nullify cached multicast address list after cleanupAlexander Guller2011-12-19
| | | | | | | | | | | | | | | | Solves an issue where we tried to free the same page twice after the port has been opened and closed. Signed-off-by: Alexander Guller <alexg@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: Changing link sensing logicYevgeny Petrilin2011-12-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New FW can give clues to driver regarding default port type and whether or not we should default to link sensing on the port. 2 bits are added to QUERY_PORT command: 1. suggested_type: This bit gives a hint whether the default port type should be IB or Ethernet. The driver will use this hint in case the user didn't specify explicitly the link layer type he wants to set. 2. default_sense: If this bit is set, we would sense the port type on start-up and default the port to link sensing Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4: capability for link sensingYevgeny Petrilin2011-12-19
| | | | | | | | | | | | | | | | | | | | For ConnectX3 devices, we allow link sensing only if FW explicitly reported it supports the feature. For older versions (ConnectX1 and 2), if the card supports both link layer types (Ethenet and Infiniband), link sensing is supported. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4: Fix compile error when driver is comiled-inJoerg Roedel2011-12-16
| | | | | | | | | | | | | | | | This patch fixes a compile error that occurs when the driver is compile into the kernel and not as a module. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_en: updated driver version to 2.0Yevgeny Petrilin2011-12-13
| | | | | | | | | | Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: updated driver version to 1.1Yevgeny Petrilin2011-12-13
| | | | | | | | | | Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: Modify driver initialization flow to accommodate SRIOV for EthernetJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Added module parameters sr_iov and probe_vf for controlling enablement of SRIOV mode. 2. Increased default max num-qps, num-mpts and log_num_macs to accomodate SRIOV mode 3. Added port_type_array as a module parameter to allow driver startup with ports configured as desired. In SRIOV mode, only ETH is supported, and this array is ignored; otherwise, for the case where the FW supports both port types (ETH and IB), the port_type_array parameter is used. By default, the port_type_array is set to configure both ports as IB. 4. When running in sriov mode, the master needs to initialize the ICM eq table to hold the eq's for itself and also for all the slaves. 5. mlx4_set_port_mask() now invoked from mlx4_init_hca, instead of in mlx4_dev_cap. 6. Introduced sriov VF (slave) device startup/teardown logic (mainly procedures mlx4_init_slave, mlx4_slave_exit, mlx4_slave_cap, mlx4_slave_exit and flow modifications in __mlx4_init_one, mlx4_init_hca, and mlx4_setup_hca). VFs obtain their startup information from the PF (master) device via the comm channel. 7. In SRIOV mode (both PF and VF), MSI_X must be enabled, or the driver aborts loading the device. 8. Do not allow setting port type via sysfs when running in SRIOV mode. 9. mlx4_get_ownership: Currently, only one PF is supported by the driver. If the HCA is burned with FW which enables more than one PF, only one of the PFs is allowed to run. The first one up grabs a FW ownership semaphone -- all other PFs will find that semaphore taken, and the driver will not allow them to run. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Liran Liss <liranl@mellanox.co.il> Signed-off-by: Marcel Apfelbaum <marcela@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: adjust catas operation for SRIOV modeJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | When running in SRIOV mode, driver should not automatically start/stop the mlx4_core upon sensing an HCA internal error -- doing this disables/enables sriov, which will cause the hypervisor to hang if there are running VMs with attached VFs. In addition, on VMs the catas process should not run at all, since the HCA error buffer is not available to VMs in the BARs. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: mtts resources units changed to offsetMarcel Apfelbaum2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the previous implementation mtts are managed by: 1. order - log(mtt segments), 'mtt segment' groups several mtts together. 2. first_seg - segment location relative to mtt table. In the current implementation: 1. order - log(mtts) rather than segments 2. offset - mtt index in mtt table Note: The actual mtt allocation is made in segments but it is transparent to callers. Rational: The mtt resource holders are not interested on how the allocation of mtt is done, but rather on how they will use it. Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il> Reviewed-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_en: Allow communication between functions on same hostEugenia Emantayev2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | To enable internal loopback, always fill DMAC in control segment when transmitting the packet, once this is done, the packet is subject for loopback for if the DMAC mathces one of the multicast/unicast addresses registered on the physical port. In receive path if source MAC is our own MAC and we are not in selftest, or not in force LB mode - drop this packet. 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>
* | mlx4: Ethernet port management modificationsEugenia Emantayev2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The physical port is now common to the PF and VFs. The port resources and configuration is managed by the PF, VFs can only influence the MTU of the port, it is set as max among all functions, Each function allocates RX buffers of required size to meet it's MTU enforcement. Port management code was moved to mlx4_core, as the mlx4_en module is virtualization unaware Move handling qp functionality to mlx4_get_eth_qp/mlx4_put_eth_qp including reserve/release range and add/release unicast steering. Let mlx4_register/unregister_mac deal only with MAC (un)registration. 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>
* | mlx4: Traffic steering management support for SRIOVEugenia Emantayev2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | Let multicast/unicast attaching flow go through resource tracker. The PF is the one responsible for managing all the steering entries. Define and use module parameter that determines the number of qps per multicast group. Minor changes in function calls according to changed prototype. 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>
* | mlx4_core: resource tracking for HCA resources used by guestsEli Cohen2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The resource tracker is used to track usage of HCA resources by the different guests. Virtual functions (VFs) are attached to guest operating systems but resources are allocated from the same pool and are assigned to VFs. It is essential that hostile/buggy guests not be able to affect the operation of other VFs, possibly attached to other guest OSs since ConnectX firmware is not tolerant to misuse of resources. The resource tracker module associates each resource with a VF and maintains state information for the allocated object. It also defines allowed state transitions and enforces them. Relationships between resources are also referred to. For example, CQs are pointed to by QPs, so it is forbidden to destroy a CQ if a QP refers to it. ICM memory is always accessible through the primary function and hence it is allocated by the owner of the primary function. When a guest dies, an FLR is generated for all the VFs it owns and all the resources it used are freed. The tracked resource types are: QPs, CQs, SRQs, MPTs, MTTs, MACs, RES_EQs, and XRCDNs. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: Add wrapper functions and comm channel and slave event support to EQsJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Passing async events to slaves: In SRIOV mode, each slave creates its own async EQ, but only the master can register directly with the FW to receive async events. Async events which should be passed to slaves (such as a WQ_ACCESS_ERROR for a QP owned by a slave) are generated at the slave by the master using the GEN_EQE FW command. Wrapper functions: mlx4_MAP_EQ_wrapper Only the master can map an EQ. The slave commands to map their EQs arrive at the master via the comm channel. The master then invokes the wrapper function to do the work (and enter the resource in the tracking database). New events: COMM_CHANNEL and FLR The COMM_CHANNEL event arrives only at the master, and signals that a slave has posted a command on the comm channel. The FLR event is generated by the FW when a guest operating a VF unexpectedly goes down. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: mtt modifications for SRIOVJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MTTs are resources which are allocated and tracked by the PF driver. In multifunction mode, the allocation and icm mapping is done in the resource tracker (later patch in this sequence). To accomplish this, we have "work" functions whose names start with "__", and "request" functions (same name, no __). If we are operating in multifunction mode, the request function actually results in comm-channel commands being sent (ALLOC_RES or FREE_RES). The PF-driver comm-channel handler will ultimately invoke the "work" (__) function and return the result. If we are not in multifunction mode, the "work" handler is invoked immediately. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: cq modifications for SRIOVJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CQs are resources which are allocated and tracked by the PF driver. In multifunction mode, the allocation and icm mapping is done in the resource tracker (later patch in this sequence). To accomplish this, we have "work" functions whose names start with "__", and "request" functions (same name, no __). If we are operating in multifunction mode, the request function actually results in comm-channel commands being sent (ALLOC_RES or FREE_RES). The PF-driver comm-channel handler will ultimately invoke the "work" (__) function and return the result. If we are not in multifunction mode, the "work" handler is invoked immediately. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: qp modifications for SRIOVJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | QPs are resources which are allocated and tracked by the PF driver. In multifunction mode, the allocation and icm mapping is done in the resource tracker (later patch in this sequence). To accomplish this, we have "work" functions whose names start with "__", and "request" functions (same name, no __). If we are operating in multifunction mode, the request function actually results in comm-channel commands being sent (ALLOC_RES or FREE_RES). The PF-driver comm-channel handler will ultimately invoke the "work" (__) function and return the result. If we are not in multifunction mode, the "work" handler is invoked immediately. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: srq modifications for SRIOVJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SRQs are resources which are allocated and tracked by the PF driver. In multifunction mode, the allocation and icm mapping is done in the resource tracker (later patch in this sequence). To accomplish this, we have "work" functions whose names start with "__", and "request" functions (same name, no __). If we are operating in multifunction mode, the request function actually results in comm-channel commands being sent (ALLOC_RES or FREE_RES). The PF-driver comm-channel handler will ultimately invoke the "work" (__) function and return the result. If we are not in multifunction mode, the "work" handler is invoked immediately. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: Added FW commands and their wrappers for supporting SRIOVMarcel Apfelbaum2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following commands are added here: 1. QUERY_FUNC_CAP and its wrapper. This function is used by VFs when they start up to receive configuration information from the PF, such as resource quotas for this VF, which ports should be used (currently two), what protocol is running on the port (currently Ethernet ONLY, or port not active). 2. QUERY_PORT and its wrapper. Previously, this FW command was invoked directly by the ETH driver (en_port.c) using mlx4_cmd_box. Virtualization is now required here (the VF's MAC address must be substituted for the PFs MAC address returned by the FW). We changed the invocation in the ETH driver to use mlx4_QUERY_PORT, and added the wrapper. 3. QUERY_HCA. Used by the VF to determine how the HCA was initialized. For now, we need only the multicast table member entry size (log2_mc_table_entry_sz, in the ConnectX PRM). No wrapper is needed here, because the data may be passed as is to the VF without modification). In this command, we have added a GLOBAL_CAPS field for passing required configuration information from FW to a VF (this field is to allow safely adding new SRIOV capabilities which require support in VF drivers, too). Bits will set here by FW in response to PF-driver configuration commands which will activate as yet undefined new SRIOV features. The VF will test to see that all required capabilities indicated by this field are supported (i.e., if a bit is set and the VF driver does not recognize that bit, it must abort its initialization). Currently, no bits are set. 4. Added a CLOSE_PORT wrapper. The PF context needs to keep track of how many VF contexts have the port open. The PF context will not actually issue the FW close port command until the last port user issues a CLOSE_PORT request. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Marcel Apfelbaum <marcela@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_core: Implement the master-slave communication channelYevgeny Petrilin2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When SRIOV is enabled, pf and vfs communicate via shared comm channel. The vf gets its side of the comm channel via a VF BAR. Each VF (slave) creates its vHCR (virtual HCA Command Register), Its DMA address is passed to the PF (master) using Communication Channel Register. The same Register is used to notify the master of commands posted by the slaves and for the master to pass events to the slaves, such as command completions and asynchronous events. The vHCR format is identical to the HCR format, except for the 'go' and 't' bits, which are reserved in the vHCR. Posting commands to the vHCR is identical to the way it is done with the HCR, albeit that the function/PF token fields are used instead of the HCR go bit. Specifically: - When the function prepares a new command in the vHCR, it issues the Post_vHCR_cmd communication channel command and toggles the value of the function token; when PF token has an equal value, the command has been accepted and a new command may be posted. - When the PF detects a Post_vHCR_cmd command, it concludes that a new command is available in the vHCR; after processing the command, the PF toggles the PF token to match the function token. When the 'e' bit is not set, the completion of a Post_vHCR_cmd command also indicates the completion the vHCR command. If, however, the 'e' bit is set, the completion of a Post_vHCR_cmd command only indicates that the vHCR command has been accepted for execution by the PF. Function commands are processed by the PF as follows: -DMA (using the ACCESS_MEM command) the vHCR image into a shadow buffer. -Validate that the opcode is non-privileged, and that the opcode- and input-modifiers are legal. -DMA the in-box (if required) into a shadow buffer. -Validate the command: o Resource ranges (e.g., QP ranges). o Partition key. o Ranges of referenced resources (e.g., CQs within QP contexts). -If the 'e' bit is set o complete the Post_vHCR_cmd command -Execute the command on the HCR. -DMA the results to the vHCR out-box (if required). -If the 'e' bit is set o Indicate command completion by generating a completion event using the GEN_EQE command -Otherwise o DMA the command status to the vHCR o Complete the Post_vHCR_cmd command Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Yevgeny Petrillin <yevgenyp@mellanox.com> Signed-off-by: Liran Liss <liranl@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: Reduce number of PD bits to 17Jack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | When SRIOV is enabled on the chip (at FW burning time), the HCA uses only 17 bits for the PD. The remaining 7 high-order bits are ignored. Change the allocator to return only 17 bits for the PD. The MSB 7 bits will be used to encode the slave number for consistency checking later on in the resource tracker. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4_core: Add "native" argument to mlx4_cmd and its callers (where needed)Jack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | mlx4: Extanding port_mask functionalityJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | mlx4_core: initial header-file changes for SRIOV supportJack Morgenstein2011-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These changes will not affect module operation as yet. They are only to get some structs and enums in place for use by subsequent patches (making those smaller). Added here: * sriov state structs and inlines (mlx4_is_master/slave/mfunc) * comm-channel and vhcr support structures * enum values for new FW and comm-channel virtual commands (i.e., commands, passed via the comm channel to the PF-driver). * prototypes for many command wrapper functions (used by the PF context for processing FW commands passed to it by the VFs). * struct mlx4_eqe is moved from eq.c to mlx4.h (it will be used by other mlx4_core source files). Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: make vlan ndo_vlan_rx_[add/kill]_vid return error valueJiri Pirko2011-12-08
| | | | | | | | | | | | | | | | | | | | | | | | Let caller know the result of adding/removing vlan id to/from vlan filter. In some drivers I make those functions to just return 0. But in those where there is able to see if hw setup went correctly, return value is set appropriately. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: bug fix for the case of vlan id 0 and UP 0Amir Vadai2011-11-27
| | | | | | | | | | | | | | When using vlan 0 and UP 0, vlan header wasn't placed. Signed-off-by: Amir Vadai <amirv@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: adding loopback supportAmir Vadai2011-11-27
| | | | | | | | | | | | | | | | Device must be in promiscuous mode or DMAC must be same as the host MAC, or else packet will be dropped by the HW rx filtering. Signed-off-by: Amir Vadai <amirv@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: fix WOL handlers were always looking at port2 capability bitOren Duer2011-11-27
| | | | | | | | | | | | | | | | There are 2 capability bits for WOL, one for each port. WOL handlers were looking only on the second bit, regardless of the port. Signed-off-by: Oren Duer <oren@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: using non collapsed CQ on TXYevgeny Petrilin2011-11-27
| | | | | | | | | | | | | | | | Moving to regular Completion Queue implementation (not collapsed) Completion for each transmitted packet is written to new entry. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: fix sparse warning on a cast which truncates bits from constant ↵Or Gerlitz2011-11-27
| | | | | | | | | | | | | | | | | | | | | | | | value the MLX4_EN_WOL_DO_MODIFY flag which is defined through enum targets bit 63, this triggers a "cast truncate bits from constant value (8000000000000000 becomes 0)" warning from sparse, fix that by using define instead of enum. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4: fix UDP RSS related settingsOr Gerlitz2011-11-27
| | | | | | | | | | | | | | | | | | | | Using RSS which takes into account UDP headers is controlled by a module param, fix the setting of the HW RSS context to align with that scheme. So far it was uncoditionally allowing hashing on the UDP headers. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4: move RSS related definitions to be globalOr Gerlitz2011-11-27
| | | | | | | | | | | | | | | | | | | | Towards adding RSS support for IB drivers/application who use the mlx4 HW, make the RSS related definitions global and change the mlx4_en driver to use them. Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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