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path: root/drivers/net/ethernet/mellanox
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* mlx4: add unicast steering entries to resource_trackerEugenia Emantayev2012-02-141-7/+11
| | | | | | | | | | Add unicast steering entries to resource tracker. Do qp_detach also for these entries when VF doesn't shut down gracefully. Otherwise there is leakage of these resources, since they are not tracked. 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: attach multicast with correct flagEugenia Emantayev2012-02-141-12/+4
| | | | | | | | mlx4_multicast_attach/detach() should use always MLX4_MC_STEER flag 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: remove redundant adding of steering type to gidEugenia Emantayev2012-02-141-2/+0
| | | | | | | | | mlx4_uc_steer_add/release() should not add MLX4_UC_STEER flag to gid. It is added in mlx4_unicast_attach/detach(). 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: remove unnecessary variables and argumentsEugenia Emantayev2012-02-141-12/+10
| | | | | | | | | mlx4_qp_attach/detach_common() don't use hash variable, move it to find_entry() static find_entry() in mcg.c doesn't use steer argument 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: remove unused field high_priosEugenia Emantayev2012-02-142-4/+1
| | | | | | | | Remove unnecessary field high_prios from mlx4_steer struct and initialization 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: fix QP tree trashingEugenia Emantayev2012-02-141-0/+1
| | | | | | | | | | | | When adding new unicast steer entry, before moving qp to state ready, actually before calling mlx4_RST2INIT_QP_wrapper(), there were added a lot of entries with local_qpn=0 into radix tree. This fact impacted the get_res() function and proper functioning of resource tracker in addition to adding trash entries into radix tree. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Reviewed-by: Yevgeny Petrilin <yevgenyp@melllanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_core: fix buffer overrunEugenia Emantayev2012-02-141-1/+1
| | | | | | | | | | | When passing MLX4_UC_STEER=1 it was translated to value 2 after mlx4_QP_ATTACH_wrapper. Therefore in new_steering_entry() unicast steer entries were added to index 2 of array of size 2. Fixing this bug by shift right to one position. 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>
* Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2012-02-105-18/+24
|\ | | | | | | | | | | | | | | | | Conflicts: drivers/infiniband/hw/nes/nes_cm.c Simple whitespace conflict. Signed-off-by: David S. Miller <davem@davemloft.net>
| * mlx4: fix DMA mapping leak when allocation failsThadeu Lima de Souza Cascardo2012-02-061-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | mlx4_en_prepare_rx_desc does not correctly clean up after it finds an allocation failure. It should unmap a page before calling put_page, but it only calls the later. This bug would prevent a device removal using hotplug after setting the device MTU to 9000 and opening the network interface. After the fix, we still see the allocation failure with MTU 9000, but we are able to remove the device. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * mlx4: allow device removal by fixing dma unmap sizeThadeu Lima de Souza Cascardo2012-02-063-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After opening the network interface, Mellanox ConnectX device cannot be removed by hotplug because it has not properly unmapped all DMA memory. It happens that mlx4_en_activate_rx_rings overrides the variable that keeps the size of the memory mapped. This is fixed by passing to mlx4_en_destroy_rx_ring the same size that is given to mlx4_en_create_rx_ring. After applying this patch, hot unplugging the device works after opening the interface. Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * mlx4_core: use correct port for steeringEugenia Emantayev2012-02-061-6/+6
| | | | | | | | | | | | | | | | | | | | Use port number for correct steering (list per port). Before the fix all steering entries (for both physical ports) were managed in first port structures, so we had leakage of resources for port 2. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
| * mlx4_core: use correct flag for unicast_promiscEugenia Emantayev2012-02-061-2/+2
| | | | | | | | | | | | | | | | Use MLX4_DEV_CAP_FLAG_VEP_UC_STEER for unicast_promisc_add/remove Unicast entries were managed in wrong data structures. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
| * mlx4_core: fix memory leak at multi_func_cleanupEugenia Emantayev2012-02-061-5/+5
| | | | | | | | | | | | | | | | Perform cleanup also in non-master flow. The VFs use communication channel as well. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
* | netdev: ethernet dev_alloc_skb to netdev_alloc_skbPradeep A Dalvi2012-02-061-2/+1
| | | | | | | | | | | | | | | | Replaced deprecating dev_alloc_skb with netdev_alloc_skb in drivers/net/ethernet - Removed extra skb->dev = dev after netdev_alloc_skb Signed-off-by: Pradeep A Dalvi <netdev@pradeepdalvi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | mlx4: Fix typo in cmd.cMasanari Iida2012-02-041-1/+1
| | | | | | | | | | | | | | | | Correct spelling "reseting" to "resetting" in drivers/net/ethernet/mellanox/mlx4/cmd.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers/net: Remove alloc_etherdev error messagesJoe Perches2012-01-311-3/+1
| | | | | | | | | | | | | | | | alloc_etherdev has a generic OOM/unable to alloc message. Remove the duplicative messages after alloc_etherdev calls. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers/net: Remove unnecessary k.alloc/v.alloc OOM messagesJoe Perches2012-01-312-7/+4
|/ | | | | | | | | | alloc failures use dump_stack so emitting an additional out-of-memory message is an unnecessary duplication. Remove the allocation failure messages. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* mlx4_core: map async events to arbitrary slave eqsMarcel Apfelbaum2012-01-224-16/+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 Apfelbaum2012-01-222-2/+2
| | | | | | | | | | 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 Apfelbaum2012-01-2210-53/+8
| | | | | | | | 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 Emantayev2012-01-224-16/+74
| | | | | | | | | | | 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 Emantayev2012-01-221-0/+2
| | | | | | | | | 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 Emantayev2012-01-221-12/+24
| | | | | | | | 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 Petrilin2012-01-184-7/+102
| | | | | | | | | 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 Petrilin2012-01-031-1/+6
| | | | | | | | 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 Apfelbaum2012-01-031-2/+2
| | | | | | | | | | | 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. Miller2012-01-021-0/+1
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| * mlx4_en: nullify cq->vector field when closing completion queueYevgeny Petrilin2011-12-301-0/+1
| | | | | | | | | | | | | | 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 Petrilin2011-12-291-2/+4
| | | | | | | | | | | | | | | | | | 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 Petrilin2011-12-291-1/+1
| | | | | | | | | | 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 Lin2011-12-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Petrilin2011-12-201-1/+1
| | | | | | | | | | | | | | | | | | | | 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 Russell2011-12-192-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Petrilin2011-12-191-32/+56
| | | | | | | | | | | | | | | | | | | | 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 Petrilin2011-12-191-2/+2
| | | | | | | | | | | | | | | | 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 Guller2011-12-191-0/+2
| | | | | | | | | | | | | | | | 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 Petrilin2011-12-193-16/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Petrilin2011-12-191-2/+8
| | | | | | | | | | | | | | | | | | | | 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 Roedel2011-12-161-2/+2
| | | | | | | | | | | | | | | | 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 Petrilin2011-12-131-2/+2
| | | | | | | | | | 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 Petrilin2011-12-131-2/+2
| | | | | | | | | | 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 Morgenstein2011-12-135-157/+931
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Morgenstein2011-12-132-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | 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 Apfelbaum2011-12-136-96/+90
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Emantayev2011-12-132-11/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | 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 Emantayev2011-12-138-258/+621
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Emantayev2011-12-135-69/+198
| | | | | | | | | | | | | | | | | | | | | | | | 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 Cohen2011-12-139-120/+3628
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Morgenstein2011-12-131-25/+350
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Morgenstein2011-12-132-41/+361
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
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