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* net: rdma: use __ethtool_get_ksettingsDavid Decotigny2016-02-251-8/+6
| | | | | Signed-off-by: David Decotigny <decot@googlers.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* IB/core: Use hop-limit from IP stack for RoCEMatan Barak2016-01-191-1/+3
| | | | | | | | | Previously, IPV6_DEFAULT_HOPLIMIT was used as the hop limit value for RoCE. Fixing that by taking ip4_dst_hoplimit and ip6_dst_hoplimit as hop limit values. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/core: Rename rdma_addr_find_dmac_by_grhMatan Barak2016-01-191-2/+3
| | | | | | | | | rdma_addr_find_dmac_by_grh resolves dmac, vlan_id and if_index and downsteram patch will also add hop_limit as an output parameter, thus we rename it to rdma_addr_find_l2_eth_by_grh. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/core: Validate route when we init ahMatan Barak2015-12-231-3/+7
| | | | | | | | | In order to make sure API users don't try to use SGIDs which don't conform to the routing table, validate the route before searching the RoCE GID table. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/core: Add rdma_network_type to wcSomnath Kotur2015-12-231-0/+1
| | | | | | | | | | | | | | | | Providers should tell IB core the wc's network type. This is used in order to search for the proper GID in the GID table. When using HCAs that can't provide this info, IB core tries to deep examine the packet and extract the GID type by itself. We choose sgid_index and type from all the matching entries in RDMA-CM based on hint from the IP stack and we set hop_limit for the IP packet based on above hint from IP stack. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Somnath Kotur <Somnath.Kotur@Avagotech.Com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/addr: Pass network namespace as a parameterGuy Shapiro2015-10-281-1/+15
| | | | | | | | | | | | | | | | | | | | | | | Add network namespace support to the ib_addr module. For that, all the address resolution and matching should be done using the appropriate namespace instead of init_net. This is achieved by: 1. Adding an explicit network namespace argument to exported function that require a namespace. 2. Saving the namespace in the rdma_addr_client structure. 3. Using it when calling networking functions. In order to preserve the behavior of calling modules, &init_net is passed as the parameter in calls from other modules. This is modified as namespace support is added on more levels. Signed-off-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Yotam Kenneth <yotamke@mellanox.com> Signed-off-by: Shachar Raindel <raindel@mellanox.com> Signed-off-by: Guy Shapiro <guysh@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/core: Use GID table in AH creation and dmac resolutionMatan Barak2015-10-211-1/+1
| | | | | | | | | | | | | | | | | Previously, vlan id and source MAC were used from QP attributes. Since the net device is now stored in the GID attributes, they could be used instead of getting this information from the QP attributes. IB_QP_SMAC, IB_QP_ALT_SMAC, IB_QP_VID and IB_QP_ALT_VID were removed because there is no known libibverbs that uses them. This commit also modifies the vendors (mlx4, ocrdma) drivers in order to use the new approach. ocrdma driver changes were done by Somnath Kotur <Somnath.Kotur@Avagotech.Com> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/core cleanup: Add const to args - agent_send_responseIra Weiny2015-06-021-3/+3
| | | | | | | | | | | | In order to support constant callers of agent_send_response we add const specifiers to the its pointer arguments. Adjust the call tree accordingly. Signed-off-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Hal Rosenstock <hal@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/core: change rdma_gid2ip into void function as it always return zeroHonggang LI2015-05-051-2/+1
| | | | | | Signed-off-by: Honggang Li <honli@redhat.com> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
* IB/cma: IBoE (RoCE) IP-based GID addressingMoni Shoua2014-01-181-23/+12
| | | | | | | | | | | | | | | | Currently, the IB core and specifically the RDMA-CM assumes that IBoE (RoCE) gids encode related Ethernet netdevice interface MAC address and possibly VLAN id. Change GIDs to be treated as they encode interface IP address. Since Ethernet layer 2 address parameters are not longer encoded within gids, we have to extend the Infiniband address structures (e.g. ib_ah_attr) with layer 2 address parameters, namely mac and vlan. Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/core: Ethernet L2 attributes in verbs/cm structuresMatan Barak2014-01-141-1/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch add the support for Ethernet L2 attributes in the verbs/cm/cma structures. When dealing with L2 Ethernet, we should use smac, dmac, vlan ID and priority in a similar manner that the IB L2 (and the L4 PKEY) attributes are used. Thus, those attributes were added to the following structures: * ib_ah_attr - added dmac * ib_qp_attr - added smac and vlan_id, (sl remains vlan priority) * ib_wc - added smac, vlan_id * ib_sa_path_rec - added smac, dmac, vlan_id * cm_av - added smac and vlan_id For the path record structure, extra care was taken to avoid the new fields when packing it into wire format, so we don't break the IB CM and SA wire protocol. On the active side, the CM fills. its internal structures from the path provided by the ULP. We add there taking the ETH L2 attributes and placing them into the CM Address Handle (struct cm_av). On the passive side, the CM fills its internal structures from the WC associated with the REQ message. We add there taking the ETH L2 attributes from the WC. When the HW driver provides the required ETH L2 attributes in the WC, they set the IB_WC_WITH_SMAC and IB_WC_WITH_VLAN flags. The IB core code checks for the presence of these flags, and in their absence does address resolution from the ib_init_ah_from_wc() helper function. ib_modify_qp_is_ok is also updated to consider the link layer. Some parameters are mandatory for Ethernet link layer, while they are irrelevant for IB. Vendor drivers are modified to support the new function signature. Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* IB/addr: Add AF_IB support to ip_addr_sizeSean Hefty2013-06-201-5/+1
| | | | | | | | | | Add support for AF_IB to ip_addr_size, and rename the function to account for the change. Give the compiler more control over whether the call should be inline or not by moving the definition into the .c file, removing the static inline, and exporting it. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* rdma/core: Fix sparse warningsSean Hefty2012-01-041-1/+1
| | | | | | | Clean up sparse warnings in the rdma core layer. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* net: consolidate and fix ethtool_ops->get_settings callingJiri Pirko2011-09-151-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch does several things: - introduces __ethtool_get_settings which is called from ethtool code and from drivers as well. Put ASSERT_RTNL there. - dev_ethtool_get_settings() is replaced by __ethtool_get_settings() - changes calling in drivers so rtnl locking is respected. In iboe_get_rate was previously ->get_settings() called unlocked. This fixes it. Also prb_calc_retire_blk_tmo() in af_packet.c had the same problem. Also fixed by calling __dev_get_by_index() instead of dev_get_by_index() and holding rtnl_lock for both calls. - introduces rtnl_lock in bnx2fc_vport_create() and fcoe_vport_create() so bnx2fc_if_create() and fcoe_if_create() are called locked as they are from other places. - use __ethtool_get_settings() in bonding code Signed-off-by: Jiri Pirko <jpirko@redhat.com> v2->v3: -removed dev_ethtool_get_settings() -added ASSERT_RTNL into __ethtool_get_settings() -prb_calc_retire_blk_tmo - use __dev_get_by_index() and lock around it and __ethtool_get_settings() call v1->v2: add missing export_symbol Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> [except FCoE bits] Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* ethtool: Call ethtool's get/set_settings callbacks with cleaned dataDavid Decotigny2011-04-291-6/+7
| | | | | | | | | | | | | | | | | | | | | This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* IB/core: Add VLAN support for IBoEEli Cohen2010-10-251-4/+39
| | | | | | | | | | | | | | | | | Add 802.1q VLAN support to IBoE. The VLAN tag is encoded within the GID derived from a link local address in the following way: GID[11] GID[12] contain the VLAN ID when the GID contains a VLAN. The 3 bits user priority field of the packets are identical to the 3 bits of the SL. In case of rdma_cm apps, the TOS field is used to generate the SL field by doing a shift right of 5 bits effectively taking to 3 MS bits of the TOS field. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cm: Add RDMA CM support for IBoE devicesEli Cohen2010-10-131-1/+98
| | | | | | | | | | | | | | | | | | Add support for IBoE device binding and IP --> GID resolution. Path resolving and multicast joining are implemented within cma.c by filling in the responses and running callbacks in the CMA work queue. IP --> GID resolution always yields IPv6 link local addresses; remote GIDs are derived from the destination MAC address of the remote port. Multicast GIDs are always mapped to multicast MACs as is done in IPv6. (IPv4 multicast is enabled by translating IPv4 multicast addresses to IPv6 multicast as described in <http://www.mail-archive.com/ipng@sunroof.eng.sun.com/msg02134.html>.) Some helper functions are added to ib_addr.h. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cm: fix loopback address supportSean Hefty2009-11-191-21/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RDMA CM is intended to support the use of a loopback address when establishing a connection; however, the behavior of the CM when loopback addresses are used is confusing and does not always work, depending on whether loopback was specified by the server, the client, or both. The defined behavior of rdma_bind_addr is to associate an RDMA device with an rdma_cm_id, as long as the user specified a non- zero address. (ie they weren't just trying to reserve a port) Currently, if the loopback address is passed to rdam_bind_addr, no device is associated with the rdma_cm_id. Fix this. If a loopback address is specified by the client as the destination address for a connection, it will fail to establish a connection. This is true even if the server is listing across all addresses or on the loopback address itself. The issue is that the server tries to translate the IP address carried in the REQ message to a local net_device address, which fails. The translation is not needed in this case, since the REQ carries the actual HW address that should be used. Finally, cleanup loopback support to be more transport neutral. Replace separate calls to get/set the sgid and dgid from the device address to a single call that behaves correctly depending on the format of the device address. And support both IPv4 and IPv6 address formats. Signed-off-by: Sean Hefty <sean.hefty@intel.com> [ Fixed RDS build by s/ib_addr_get/rdma_addr_get/ - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/addr: Store net_device type instead of translating to RDMA transportSean Hefty2009-11-191-1/+2
| | | | | | | | | | | | | | The struct rdma_dev_addr stores net_device address information: the source device address, destination hardware address, and broadcast address. For consistency, store the net_device type rather than converting it to the rdma_node_type. The type indicates the format of the various hardware addresses, which is what we're concerned with, and not the RDMA node type that the address may map to. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Replace net_device pointer with indexSean Hefty2009-11-191-1/+1
| | | | | | | | | | | | | Provide the device interface when resolving route information to ensure that the correct outbound device is used. This will also simplify processing of sin6_scope_id for IPv6 support. Based on work from: David Wilder <dwilder@us.ibm.com> Jason Gunthorpe <jgunthrope@obsidianresearch.com> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/addr: Keep pointer to netdevice in struct rdma_dev_addrOr Gerlitz2008-07-141-0/+1
| | | | | | | | | | | | | | Keep a pointer to the local (src) netdevice in struct rdma_dev_addr, and copy it in as part of rdma_copy_addr(). Use rdma_translate_ip() in cma_new_conn_id() to reduce some code duplication and also make sure the src_dev member gets set. In a high-availability configuration the netdevice pointer can be used by the RDMA CM to align RDMA sessions to use the same links as the IP stack does under fail-over and route change cases. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA: Fix license textSean Hefty2008-07-141-19/+23
| | | | | | | | | The license text for several files references a third software license that was inadvertently copied in. Update the license to what was intended. This update was based on a request from HP. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/sa: Track multicast join/leave requestsSean Hefty2007-02-161-0/+6
| | | | | | | | | | | | | | | | The IB SA tracks multicast join/leave requests on a per port basis and does not do any reference counting: if two users of the same port join the same group, and one leaves that group, then the SA will remove the port from the group even though there is one user who wants to stay a member left. Therefore, in order to support multiple users of the same multicast group from the same port, we need to perform reference counting locally. To do this, add an multicast submodule to ib_sa to perform reference counting of multicast join/leave operations. Modify ib_ipoib (the only in-kernel user of multicast) to use the new interface. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/addr: Use client registration to fix module unload raceSean Hefty2006-11-021-1/+19
| | | | | | | | Require registration with ib_addr module to prevent caller from unloading while a callback is in progress. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA: iWARP Core Changes.Tom Tucker2006-09-221-1/+16
| | | | | | | | | | | | Modifications to the existing rdma header files, core files, drivers, and ulp files to support iWARP, including: - Hook iWARP CM into the build system and use it in rdma_cm. - Convert enum ib_node_type to enum rdma_node_type, which includes the possibility of RDMA_NODE_RNIC, and update everything for this. Signed-off-by: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* [PATCH] IB/addr: gid structure alignment fixMichael S. Tsirkin2006-07-141-4/+6
| | | | | | | | | | | | The device address contains unsigned character arrays, which contain raw GID addresses. The GIDs may not be naturally aligned, so do not cast them to structures or unions. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IB: address translation to map IP toIB addresses (GIDs)Sean Hefty2006-06-171-0/+114
Add an address translation service that maps IP addresses to InfiniBand GID addresses using IPoIB. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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