aboutsummaryrefslogtreecommitdiffstats
path: root/include/rdma
Commit message (Collapse)AuthorAge
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds2011-05-20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
| * ethtool: Call ethtool's get/set_settings callbacks with cleaned dataDavid Decotigny2011-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | RDMA/iwcm: Get rid of enum iw_cm_event_statusRoland Dreier2011-05-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IW_CM_EVENT_STATUS_xxx values were used in only a couple of places; cma.c uses -Exxx values instead, and so do the amso1100, cxgb3 and cxgb4 drivers -- only nes was using the enum values (with the mild consequence that all nes connection failures were treated as generic errors rather than reported as timeouts or rejections). We can fix this confusion by getting rid of enum iw_cm_event_status and using a plain int for struct iw_cm_event.status, and converting nes to use -Exxx as the other iWARP drivers do. This also gets rid of the warning drivers/infiniband/core/cma.c: In function 'cma_iw_handler': drivers/infiniband/core/cma.c:1333:3: warning: case value '4294967185' not in enumerated type 'enum iw_cm_event_status' drivers/infiniband/core/cma.c:1336:3: warning: case value '4294967186' not in enumerated type 'enum iw_cm_event_status' drivers/infiniband/core/cma.c:1332:3: warning: case value '4294967192' not in enumerated type 'enum iw_cm_event_status' Signed-off-by: Roland Dreier <roland@purestorage.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Sean Hefty <sean.hefty@intel.com> Reviewed-by: Faisal Latif <faisal.latif@intel.com>
* | RDMA/cma: Add an ID_REUSEADDR optionHefty, Sean2011-05-10
|/ | | | | | | | | | | | | | | | | | | | | | | | | Lustre requires that clients bind to a privileged port number before connecting to a remote server. On larger clusters (typically more than about 1000 nodes), the number of privileged ports is exhausted, resulting in lustre being unusable. To handle this, we add support for reusable addresses to the rdma_cm. This mimics the behavior of the socket option SO_REUSEADDR. A user may set an rdma_cm_id to reuse an address before calling rdma_bind_addr() (explicitly or implicitly). If set, other rdma_cm_id's may be bound to the same address, provided that they all have reuse enabled, and there are no active listens. If rdma_listen() is called on an rdma_cm_id that has reuse enabled, it will only succeed if there are no other id's bound to that same address. The reuse option is exported to user space. The behavior of the kernel reuse implementation was verified against that given by sockets. This patch is derived from a path by Ira Weiny <weiny2@llnl.gov> Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
* RDMA: Update workqueue usageTejun Heo2011-01-17
| | | | | | | | | | | | | | | | | * ib_wq is added, which is used as the common workqueue for infiniband instead of the system workqueue. All system workqueue usages including flush_scheduled_work() callers are converted to use and flush ib_wq. * cancel_delayed_work() + flush_scheduled_work() converted to cancel_delayed_work_sync(). * qib_wq is removed and ib_wq is used instead. This is to prepare for deprecation of flush_scheduled_work(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Add VLAN support for IBoEEli Cohen2010-10-25
| | | | | | | | | | | | | | | | | 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>
* IB/uverbs: Return link layer type to userspace for query port operationEli Cohen2010-10-25
| | | | | | Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/pack: IBoE UD packet packing supportEli Cohen2010-10-14
| | | | | | | | | | Add support for packing IBoE packet headers. Signed-off-by: Eli Cohen <eli@mellanox.co.il> [ Clean up and fix ib_ud_header_init() a bit. - Roland ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cm: Add RDMA CM support for IBoE devicesEli Cohen2010-10-13
| | | | | | | | | | | | | | | | | | 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>
* IB/core: Add link layer property to portsEli Cohen2010-09-27
| | | | | | | | | | | | | This patch allows ports to have different link layers: IB_LINK_LAYER_INFINIBAND or IB_LINK_LAYER_ETHERNET. This is required for adding IBoE (InfiniBand-over-Ethernet, aka RoCE) support. For devices that do not provide an implementation for querying the link layer property of a port, we return a default value based on the transport: RMA_TRANSPORT_IB nodes will return IB_LINK_LAYER_INFINIBAND and RDMA_TRANSPORT_IWARP nodes will return IB_LINK_LAYER_ETHERNET. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Rename RAW_ETY to RAW_ETHERTYPEAleksey Senin2010-08-04
| | | | | | | | | | Change abbreviated IB_QPT_RAW_ETY to IB_QPT_RAW_ETHERTYPE to make the special QP type easier to understand. cf http://www.mail-archive.com/linux-rdma@vger.kernel.org/msg04530.html Signed-off-by: Aleksey Senin <alekseys@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Allow device-specific per-port sysfs filesRalph Campbell2010-05-21
| | | | | | | | | | | | | | | | | Add a new parameter to ib_register_device() so that low-level device drivers can pass in a pointer to a callback function that will be called for each port that is registered in sysfs. This allows low-level device drivers to create files in /sys/class/infiniband/<hca>/ports/<N>/ without having to poke through the internals of the RDMA sysfs handling. There is no need for an unregister function since the kobject reference will go to zero when ib_unregister_device() is called. Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Add support for masked atomic operationsVladimir Sokolovsky2010-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add new IB_WR_MASKED_ATOMIC_CMP_AND_SWP and IB_WR_MASKED_ATOMIC_FETCH_AND_ADD send opcodes that can be used to post "masked atomic compare and swap" and "masked atomic fetch and add" work request respectively. - Add masked_atomic_cap capability. - Add mask fields to atomic struct of ib_send_wr - Add new opcodes to ib_wc_opcode The new operations are described more precisely below: * Masked Compare and Swap (MskCmpSwap) The MskCmpSwap atomic operation is an extension to the CmpSwap operation defined in the IB spec. MskCmpSwap allows the user to select a portion of the 64 bit target data for the “compare” check as well as to restrict the swap to a (possibly different) portion. The pseudo code below describes the operation: | atomic_response = *va | if (!((compare_add ^ *va) & compare_add_mask)) then | *va = (*va & ~(swap_mask)) | (swap & swap_mask) | | return atomic_response The additional operands are carried in the Extended Transport Header. Atomic response generation and packet format for MskCmpSwap is as for standard IB Atomic operations. * Masked Fetch and Add (MFetchAdd) The MFetchAdd Atomic operation extends the functionality of the standard IB FetchAdd by allowing the user to split the target into multiple fields of selectable length. The atomic add is done independently on each one of this fields. A bit set in the field_boundary parameter specifies the field boundaries. The pseudo code below describes the operation: | bit_adder(ci, b1, b2, *co) | { | value = ci + b1 + b2 | *co = !!(value & 2) | | return value & 1 | } | | #define MASK_IS_SET(mask, attr) (!!((mask)&(attr))) | bit_position = 1 | carry = 0 | atomic_response = 0 | | for i = 0 to 63 | { | if ( i != 0 ) | bit_position = bit_position << 1 | | bit_add_res = bit_adder(carry, MASK_IS_SET(*va, bit_position), | MASK_IS_SET(compare_add, bit_position), &new_carry) | if (bit_add_res) | atomic_response |= bit_position | | carry = ((new_carry) && (!MASK_IS_SET(compare_add_mask, bit_position))) | } | | return atomic_response Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* Merge branch 'misc' into for-nextRoland Dreier2010-03-02
|\ | | | | | | | | Conflicts: drivers/infiniband/core/uverbs_main.c
| * IB/core: Fix and clean up ib_ud_header_init()Eli Cohen2010-02-24
| | | | | | | | | | | | | | | | | | | | | | | | ib_ud_header_init() first clears header and then fills up the various fields. Later on, it tests header->immediate_present, which it has already cleared, so the condition is always false. Fix this by adding an immediate_present parameter and setting header->immediate_present as is done with grh_present. Also remove unused calculation of header_len. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | Merge branch 'cma' into for-nextRoland Dreier2010-03-02
|\ \
| * | RDMA/cm: Remove unused definition of RDMA_PS_SCTPSean Hefty2010-02-11
| |/ | | | | | | | | | | | | | | The defined SCTP number is incorrect (0x83, rather than 0x84), and since it is not used anywhere, simply remove the definition. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* / IB/core: Pack struct ib_device a little tighterAlexander Chiang2010-02-24
|/ | | | | | | | A small change to reduce the size of ib_device to 1112 bytes (from 1128). Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
*-. Merge branches 'amso1100', 'cma', 'cxgb3', 'ehca', 'ipath', 'ipoib', 'iser', ↵Roland Dreier2009-12-16
|\ \ | | | | | | | | | 'misc', 'mlx4' and 'nes' into for-next
| | * IB: Clarify the documentation of ib_post_send()Bart Van Assche2009-12-09
| |/ |/| | | | | | | | | | | | | Clarify the behavior of ib_post_send() when a list of work requests is passed in and an immediate error is returned. Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * RDMA/cm: fix loopback address supportSean Hefty2009-11-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Hefty2009-11-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Hefty2009-11-19
| | | | | | | | | | | | | | | | | | | | | | | | | | 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/ucma: Add option to manually set IB pathSean Hefty2009-11-16
|/ | | | | | | | | | | | | | | | | | Export rdma_set_ib_paths to user space to allow applications to manually set the IB path used for connections. This allows alternative ways for a user space application or library to obtain path record information, including retrieving path information from cached data, avoiding direct interaction with the IB SA. The IB SA is a single, centralized entity that can limit scaling on large clusters running MPI applications. Future changes to the rdma cm can expand on this framework to support the full range of features allowed by the IB CM, such as separate forward and reverse paths and APM. Signed-off-by: Sean Hefty <sean.hefty@intel.com> Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* trivial: fix typo "to to" in multiple filesAnand Gadiyar2009-09-21
| | | | | Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds2009-03-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1750 commits) ixgbe: Allow Priority Flow Control settings to survive a device reset net: core: remove unneeded include in net/core/utils.c. e1000e: update version number e1000e: fix close interrupt race e1000e: fix loss of multicast packets e1000e: commonize tx cleanup routine to match e1000 & igb netfilter: fix nf_logger name in ebt_ulog. netfilter: fix warning in ebt_ulog init function. netfilter: fix warning about invalid const usage e1000: fix close race with interrupt e1000: cleanup clean_tx_irq routine so that it completely cleans ring e1000: fix tx hang detect logic and address dma mapping issues bridge: bad error handling when adding invalid ether address bonding: select current active slave when enslaving device for mode tlb and alb gianfar: reallocate skb when headroom is not enough for fcb Bump release date to 25Mar2009 and version to 0.22 r6040: Fix second PHY address qeth: fix wait_event_timeout handling qeth: check for completion of a running recovery qeth: unregister MAC addresses during recovery. ... Manually fixed up conflicts in: drivers/infiniband/hw/cxgb3/cxio_hal.h drivers/infiniband/hw/nes/nes_nic.c
| * net: replace __constant_{endian} uses in net headersHarvey Harrison2009-02-15
| | | | | | | | | | | | | | | | Base versions handle constant folding now. For headers exposed to userspace, we must only expose the __ prefixed versions. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| |
| \
*-. \ Merge branches 'cxgb3', 'endian', 'ipath', 'ipoib', 'iser', 'mad', 'misc', ↵Roland Dreier2009-03-24
|\ \ \ | |_|/ |/| | | | | 'mlx4', 'mthca', 'nes' and 'sysfs' into for-next
| | * IB/mad: Fix RMPP header RRespTime manipulationRamachandra K2009-02-27
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix ib_set_rmpp_flags() to use the correct bit mask for RRespTime. In the 8-bit field of the RMPP header, the first 5 bits are RRespTime and next 3 bits are RMPPFlags. Hence to retain the first 5 bits, the mask should be 0xF8 instead of 0xF1. ack_recv()-->format_ack() calls ib_set_rmpp_flags() and due to the incorrect ANDing with 0xF1, RRespTime got changed incorrectly and RMPP Acks sent back always had a RRespTime of 0x1E (30) which caused the other end to consider the time outs to be approximately 4297 seconds (i.e. in the order of 4*2^30) instead of the usual ~4 seconds (order of 4*2^20). Signed-off-by: Ramachandra K <ramachandra.kuchimanchi@qlogic.com> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB: Remove __constant_{endian} usesHarvey Harrison2009-01-17
|/ | | | | | | | | | | The base versions handle constant folding just fine, use them directly. The replacements are OK in the include/ files as they are not exported to userspace so we don't need the __ prefixed versions. This patch does not affect code generation at all. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Remove padding arrays by using struct sockaddr_storageRoland Dreier2008-08-04
| | | | | | | | | | | | | | | | | | There are a few places where the RDMA CM code handles IPv6 by doing struct sockaddr addr; u8 pad[sizeof(struct sockaddr_in6) - sizeof(struct sockaddr)]; This is fragile and ugly; handle this in a better way with just struct sockaddr_storage addr; [ Also roll in patch from Aleksey Senin <alekseys@voltaire.com> to switch to struct sockaddr_storage and get rid of padding arrays in struct rdma_addr. ] Signed-off-by: Roland Dreier <rolandd@cisco.com>
* dma-mapping: add the device argument to dma_mapping_error()FUJITA Tomonori2008-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT eventAmir Vadai2008-07-22
| | | | | | | | | | Consumers that want to re-use their QPs in new connections need to know when the QP has exited the timewait state. Report the timewait event through the rdma_cm. Signed-off-by: Amir Vadai <amirv@mellanox.co.il> Acked-by: Sean Hefty <sean.hefty@intel.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/cma: Add RDMA_CM_EVENT_ADDR_CHANGE eventOr Gerlitz2008-07-22
| | | | | | | | | | | | | | | | | Add an RDMA_CM_EVENT_ADDR_CHANGE event can be used by rdma-cm consumers that wish to have their RDMA sessions always use the same links (eg <hca/port>) as the IP stack does. In the current code, this does not happen when bonding is used and fail-over happened but the IB link used by an already existing session is operating fine. Use the netevent notification for sensing that a change has happened in the IP stack, then scan the rdma-cm ID list to see if there is an ID that is "misaligned" with respect to the IP stack, and deliver RDMA_CM_EVENT_ADDR_CHANGE for this ID. The consumer can act on the event or just ignore it. Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/addr: Keep pointer to netdevice in struct rdma_dev_addrOr Gerlitz2008-07-15
| | | | | | | | | | | | | | 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/core: Add local DMA L_Key supportSteve Wise2008-07-15
| | | | | | | | | | | | | | - Change the IB_DEVICE_ZERO_STAG flag to the transport-neutral name IB_DEVICE_LOCAL_DMA_LKEY, which is used by iWARP RNICs to indicate 0 STag support and IB HCAs to indicate reserved L_Key support. - Add a u32 local_dma_lkey member to struct ib_device. Drivers fill this in with the appropriate local DMA L_Key (if they support it). - Fix up the drivers using this flag. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Add support for multicast loopback blockingRon Livne2008-07-15
| | | | | | | | | | | | | | | | This patch also adds a creation flag for QPs, IB_QP_CREATE_MULTICAST_BLOCK_LOOPBACK, which when set means that multicast sends from the QP to a group that the QP is attached to will not be looped back to the QP's receive queue. This can be used to save receive resources when a consumer does not want a local copy of multicast traffic; for example IPoIB must waste CPU time throwing away such local copies of multicast traffic. This patch also adds a device capability flag that shows whether a device supports this feature or not. Signed-off-by: Ron Livne <ronli@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/core: Add iWARP protocol statistics attributes in sysfsSteve Wise2008-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a sysfs attribute group called "proto_stats" under /sys/class/infiniband/$device/ and populates this group with protocol statistics if they exist for a given device. Currently, only iWARP stats are defined, but the code is designed to allow InfiniBand protocol stats if they become available. These stats are per-device and more importantly -not- per port. Details: - Add union rdma_protocol_stats in ib_verbs.h. This union allows defining transport-specific stats. Currently only iwarp stats are defined. - Add struct iw_protocol_stats to define the current set of iwarp protocol stats. - Add new ib_device method called get_proto_stats() to return protocol statistics. - Add logic in core/sysfs.c to create iwarp protocol stats attributes if the device is an RNIC and has a get_proto_stats() method. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA/core: Add memory management extensions supportSteve Wise2008-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the IB "base memory management extension" (BMME) and the equivalent iWARP operations (which the iWARP verbs mandates all devices must implement). The new operations are: - Allocate an ib_mr for use in fast register work requests. - Allocate/free a physical buffer lists for use in fast register work requests. This allows device drivers to allocate this memory as needed for use in posting send requests (eg via dma_alloc_coherent). - New send queue work requests: * send with remote invalidate * fast register memory region * local invalidate memory region * RDMA read with invalidate local memory region (iWARP only) Consumer interface details: - A new device capability flag IB_DEVICE_MEM_MGT_EXTENSIONS is added to indicate device support for these features. - New send work request opcodes IB_WR_FAST_REG_MR, IB_WR_LOCAL_INV, IB_WR_RDMA_READ_WITH_INV are added. - A new consumer API function, ib_alloc_mr() is added to allocate fast register memory regions. - New consumer API functions, ib_alloc_fast_reg_page_list() and ib_free_fast_reg_page_list() are added to allocate and free device-specific memory for fast registration page lists. - A new consumer API function, ib_update_fast_reg_key(), is added to allow the key portion of the R_Key and L_Key of a fast registration MR to be updated. Consumers call this if desired before posting a IB_WR_FAST_REG_MR work request. Consumers can use this as follows: - MR is allocated with ib_alloc_mr(). - Page list memory is allocated with ib_alloc_fast_reg_page_list(). - MR R_Key/L_Key "key" field is updated with ib_update_fast_reg_key(). - MR made VALID and bound to a specific page list via ib_post_send(IB_WR_FAST_REG_MR) - MR made INVALID via ib_post_send(IB_WR_LOCAL_INV), ib_post_send(IB_WR_RDMA_READ_WITH_INV) or an incoming send with invalidate operation. - MR is deallocated with ib_dereg_mr() - page lists dealloced via ib_free_fast_reg_page_list(). Applications can allocate a fast register MR once, and then can repeatedly bind the MR to different physical block lists (PBLs) via posting work requests to a send queue (SQ). For each outstanding MR-to-PBL binding in the SQ pipe, a fast_reg_page_list needs to be allocated (the fast_reg_page_list is owned by the low-level driver from the consumer posting a work request until the request completes). Thus pipelining can be achieved while still allowing device-specific page_list processing. The 32-bit fast register memory key/STag is composed of a 24-bit index and an 8-bit key. The application can change the key each time it fast registers thus allowing more control over the peer's use of the key/STag (ie it can effectively be changed each time the rkey is rebound to a page list). Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA: Improve include file coding styleDotan Barak2008-07-15
| | | | | | | | Remove subversion $Id lines and improve readability by fixing other coding style problems pointed out by checkpatch.pl. Signed-off-by: Dotan Barak <dotanba@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* RDMA: Fix license textSean Hefty2008-07-15
| | | | | | | | | 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/core: Remove IB_DEVICE_SEND_W_INV capability flagRoland Dreier2008-06-09
| | | | | | | | | | | | | | | | | | In 2.6.26, we added some support for send with invalidate work requests, including a device capability flag to indicate whether a device supports such requests. However, the support was incomplete: the completion structure was not extended with a field for the key contained in incoming send with invalidate requests. Full support for memory management extensions (send with invalidate, local invalidate, fast register through a send queue, etc) is planned for 2.6.27. Since send with invalidate is not very useful by itself, just remove the IB_DEVICE_SEND_W_INV bit before the 2.6.26 final release; we will add an IB_DEVICE_MEM_MGT_EXTENSIONS bit in 2.6.27, which makes things simpler for applications, since they will not have quite as confusing an array of fine-grained bits to check. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: expand ib_umem_get() prototypeArthur Kepner2008-04-29
| | | | | | | | | | | | | | | | | | | Add a new parameter, dmasync, to the ib_umem_get() prototype. Use dmasync = 1 when mapping user-allocated CQs with ib_umem_get(). Signed-off-by: Arthur Kepner <akepner@sgi.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Jes Sorensen <jes@sgi.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Roland Dreier <rdreier@cisco.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: David Miller <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Grant Grundler <grundler@parisc-linux.org> Cc: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* IB: convert struct class_device to struct deviceTony Jones2008-04-19
| | | | | | | | | | | | | | This converts the main ib_device to use struct device instead of struct class_device as class_device is going away. Signed-off-by: Tony Jones <tonyj@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* IB/core: Add support for modify CQEli Cohen2008-04-17
| | | | | | | | Add support for modifying CQ parameters for controlling event generation moderation. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Add support for "send with invalidate" work requestsRoland Dreier2008-04-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new IB_WR_SEND_WITH_INV send opcode that can be used to mark a "send with invalidate" work request as defined in the iWARP verbs and the InfiniBand base memory management extensions. Also put "imm_data" and a new "invalidate_rkey" member in a new "ex" union in struct ib_send_wr. The invalidate_rkey member can be used to pass in an R_Key/STag to be invalidated. Add this new union to struct ib_uverbs_send_wr. Add code to copy the invalidate_rkey field in ib_uverbs_post_send(). Fix up low-level drivers to deal with the change to struct ib_send_wr, and just remove the imm_data initialization from net/sunrpc/xprtrdma/, since that code never does any send with immediate operations. Also, move the existing IB_DEVICE_SEND_W_INV flag to a new bit, since the iWARP drivers currently in the tree set the bit. The amso1100 driver at least will silently fail to honor the IB_SEND_INVALIDATE bit if passed in as part of userspace send requests (since it does not implement kernel bypass work request queueing). Remove the flag from all existing drivers that set it until we know which ones are OK. The values chosen for the new flag is not consecutive to avoid clashing with flags defined in the XRC patches, which are not merged yet but which are already in use and are likely to be merged soon. This resurrects a patch sent long ago by Mikkel Hagen <mhagen@iol.unh.edu>. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Add IPoIB UD LSO supportEli Cohen2008-04-17
| | | | | | | | | | | | | LSO (large send offload) allows the networking stack to pass SKBs with data size larger than the MTU to the IPoIB driver and have the HCA HW fragment the data to multiple MSS-sized packets. Add a device capability flag IB_DEVICE_UD_TSO for devices that can perform TCP segmentation offload, a new send work request opcode IB_WR_LSO, header, hlen and mss fields for the work request structure, and a new IB_WC_LSO completion type. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Add creation flags to struct ib_qp_init_attrEli Cohen2008-04-17
| | | | | | | | | | | | | | Add a create_flags member to struct ib_qp_init_attr that will allow a kernel verbs consumer to create a pass special flags when creating a QP. Add a flag value for telling low-level drivers that a QP will be used for IPoIB UD LSO. The create_flags member will also be useful for XRC and ehca low-latency QP support. Since no create_flags handling is implemented yet, add code to all low-level drivers to return -EINVAL if create_flags is non-zero. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB: Make struct ib_uobject.id a signed intRoland Dreier2008-04-17
| | | | | | | IDR IDs are signed, so struct ib_uobject.id should be signed. This avoids some sparse pointer signedness warnings. Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/core: Remove unused struct ib_device.flags memberRoland Dreier2008-02-08
| | | | | | Avoid confusion about what it might mean, since it's never initialized. Signed-off-by: Roland Dreier <rolandd@cisco.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-30 00:42:16 -0500