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* Merge branch 'master' of ↵David S. Miller2008-11-19
|\ | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/isdn/i4l/isdn_net.c fs/cifs/connect.c
| * Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2008-11-17
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits) rtnetlink: propagate error from dev_change_flags in do_setlink() isdn: remove extra byteswap in isdn_net_ciscohdlck_slarp_send_reply Phonet: refuse to send bigger than MTU packets e1000e: fix IPMI traffic e1000e: fix warn_on reload after phy_id error phy: fix phy address bug e100: fix dma error in direction for mapping igb: use dev_printk instead of printk qla3xxx: Cleanup: Fix link print statements. igb: Use device_set_wakeup_enable e1000: Use device_set_wakeup_enable e1000e: Use device_set_wakeup_enable via-velocity: enable perfect filtering for multicast packets phy: Add support for Marvell 88E1118 PHY mlx4_en: Pause parameters per port phylib: fix premature freeing of struct mii_bus atl1: Do not enumerate options unsupported by chip atl1e: fix broken multicast by removing unnecessary crc inversion gianfar: Fix DMA unmap invocations net/ucc_geth: Fix oops in uec_get_ethtool_stats() ...
| | * mlx4_en: Pause parameters per portYevgeny Petrilin2008-11-15
| | | | | | | | | | | | | | | | | | | | | | | | Before the change the driver reported the same pause parameters for all the ports, even only one of them was modified. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge branch 'for-linus' of ↵Linus Torvalds2008-11-12
| |\ \ | | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IPoIB: Fix crash in path_rec_completion() IPoIB: Fix hang in ipoib_flush_paths() IPoIB: Don't enable NAPI when it's already enabled RDMA/cxgb3: Fix deadlock in iw_cxgb3 (hang when configuring interface) IB/ehca: Remove reference to special QP in case of port activation failure IB/mlx4: Set umem field to NULL in mlx4_ib_alloc_fast_reg_mr() mlx4_core: Fix unused variable warning RDMA/nes: Mitigate compatibility issue regarding PCIe write credits RDMA/nes: Fix CQ allocation scheme for multicast receive queue apps RDMA/nes: Correct handling of PBL resources RDMA/nes: Reindent mis-indented spinlocks RDMA/cxgb3: Fix too-big reserved field zeroing in iwch_post_zb_read() IB/ipath: Fix RDMA write with immediate copy of last packet
| | * mlx4_core: Fix unused variable warningRoland Dreier2008-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix drivers/net/mlx4/profile.c:55: warning: 'res_name' defined but not used by making mlx4_dbg() always use all of its parameters, regardless of whether CONFIG_MLX4_DEBUG is set or not. Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | | Merge branch 'master' of ↵David S. Miller2008-11-11
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/message/fusion/mptlan.c drivers/net/sfc/ethtool.c net/mac80211/debugfs_sta.c
| * | mlx4_en: Start port error flow bug fixYevgeny Petrilin2008-11-07
| | | | | | | | | | | | | | | | | | | | | | | | Tried to deactivate rx ring that wasn't activated, used wrong index. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | net: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2008-11-10
| | | | | | | | | | | | | | | | | | | | | Acked-by: Marcel Holtmann <marcel@holtmann.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | drivers/net: Kill now superfluous ->last_rx stores.David S. Miller2008-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The generic packet receive code takes care of setting netdev->last_rx when necessary, for the sake of the bonding ARP monitor. Drivers need not do it any more. Some cases had to be skipped over because the drivers were making use of the ->last_rx value themselves. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'master' of ↵David S. Miller2008-10-31
|\| | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/p54/p54common.c
| * | mlx4: Setting the correct offset for default mac addressYevgeny Petrilin2008-10-27
| | | | | | | | | | | | | | | Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | mlx4_en: remove duplicated #includeHuang Weiyi2008-10-27
| |/ | | | | | | | | | | | | | | Removed duplicated #include <linux/cpumask.h> in drivers/net/mlx4/en_main.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | net: replace %p6 with %pI6Harvey Harrison2008-10-29
| | | | | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | infiniband: use %p6 for printing message idsHarvey Harrison2008-10-29
|/ | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-10-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/ehca: Reject dynamic memory add/remove when ehca adapter is present IB/ehca: Fix reported max number of QPs and CQs in systems with >1 adapter IPoIB: Set netdev offload features properly for child (VLAN) interfaces IPoIB: Clean up ethtool support mlx4_core: Add Ethernet PCI device IDs mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC mlx4_core: Multiple port type support mlx4_core: Ethernet MAC/VLAN management mlx4_core: Get ethernet MTU and default address from firmware mlx4_core: Support multiple pre-reserved QP regions Update NetEffect maintainer emails to Intel emails RDMA/cxgb3: Remove cmid reference on tid allocation failures IB/mad: Use krealloc() to resize snoop table IPoIB: Always initialize poll_timer to avoid crash on unload IB/ehca: Don't allow creating UC QP with SRQ mlx4_core: Add QP range reservation support RDMA/ucma: Test ucma_alloc_multicast() return against NULL, not with IS_ERR()
| * mlx4_core: Add Ethernet PCI device IDsYevgeny Petrilin2008-10-22
| | | | | | | | | | Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_en: Add driver for Mellanox ConnectX 10GbE NICYevgeny Petrilin2008-10-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The Mellanox ConnectX can operate as an InfiniBand adapter, as an Ethernet NIC, or as a Fibre Channel (FC) HBA. The kernel has a low-level driver, mlx4_core, which handles multiplexing access to the device, and there is also already an InfiniBad driver, mlx4_ib. This patch adds a new driver, mlx4_en, which implements a standard Ethernet NIC driver. Signed-off-by: Liran Liss <liranl@mellanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Multiple port type supportYevgeny Petrilin2008-10-22
| | | | | | | | | | | | | | | | | | | | | | | | Multi-protocol adapters support different port types. Each consumer of mlx4_core queries for supported port types; in particular mlx4_ib can no longer assume that all physical ports belong to it. Port type is configured through a sysfs interface. When the type of a port is changed, all mlx4 interfaces are unregistered, and then registered again with the new port types. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Ethernet MAC/VLAN managementYevgeny Petrilin2008-10-22
| | | | | | | | | | | | | | | | Add support for managing MAC and VLAN filters for each port. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Oren Duer <oren@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Get ethernet MTU and default address from firmwareYevgeny Petrilin2008-10-22
| | | | | | | | | | | | | | | | Get maximum ethernet MTU and default MAC address from the firmware QUERY_DEV_CAP command. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Support multiple pre-reserved QP regionsYevgeny Petrilin2008-10-22
| | | | | | | | | | | | | | | | | | | | | | | | | | For ethernet support, we need to reserve QPs for the ethernet and fibre channel driver. The QPs are reserved at the end of the QP table. (This way we assure that they are aligned to their size) We need to consider these reserved ranges in bitmap creation, so we extend the mlx4 bitmap utility functions to allow reserved ranges at both the bottom and the top of the range. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Add QP range reservation supportYevgeny Petrilin2008-10-10
| | | | | | | | | | | | | | | | | | | | | | | | To allow allocating an aligned range of consecutive QP numbers, add an interface to reserve an aligned range of QP numbers and have the QP allocation function always take a QP number. This will be used for RSS support in the mlx4_en Ethernet driver and also potentially by IPoIB RSS support. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | Merge branch 'master' of ↵David S. Miller2008-10-01
|\| | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/ath9k/core.c drivers/net/wireless/ath9k/main.c net/core/dev.c
| * IB/mlx4: Fix up fast register page list formatVladimir Sokolovsky2008-09-15
| | | | | | | | | | | | | | | | | | | | | | Byte swap the addresses in the page list for fast register work requests to big endian to match what the HCA expectx. Also, the addresses must have the "present" bit set so that the HCA knows it can access them. Otherwise the HCA will fault the first time it accesses the memory region. Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Set RAE and init mtt_sz field in FRMR MPT entriesVladimir Sokolovsky2008-09-02
| | | | | | | | | | | | | | | | | | | | | | Set the RAE (remote access enable) bit and correctly initialize the MTT size in MPT entries being set up for fast register memory regions. Otherwise the callers can't enable remote access and in fact can't fast register at all (since the HCA will think no MTT entries are allocated). Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | drivers/net/mlx4/alloc.c needs mm.hAndrew Morton2008-09-24
|/ | | | | | | | | | | | | | | | | | | | | sparc32 allmodconfig with linux-next: drivers/net/mlx4/alloc.c: In function 'mlx4_buf_alloc': drivers/net/mlx4/alloc.c:164: error: 'PAGE_KERNEL' undeclared (first use in this function) drivers/net/mlx4/alloc.c:164: error: (Each undeclared identifier is reported only once drivers/net/mlx4/alloc.c:164: error: for each function it appears in.) this is due to some header shuffle in linux-next. I didn't look to see what it was. I'd sugges that this patch be merged ahead of a linux-next merge to avoid bisection breaks. We strictly only need asm/pgtable.h, but going direct to asm includes always seems grubby. Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-07-26
|\ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: mlx4: Update/add Mellanox Technologies copyright lines to mlx4 driver files mlx4_core: Add VLAN tag field to WQE control segment struct RDMA/nes: CM connection setup/teardown rework IPoIB: Correct help text for INFINIBAND_IPOIB_DEBUG IPoIB/cm: Connected mode is no longer EXPERIMENTAL RDMA/ucm: BKL is not needed for ib_ucm_open() RDMA/ucma: BKL is not needed for ucma_open()
| * mlx4: Update/add Mellanox Technologies copyright lines to mlx4 driver filesJack Morgenstein2008-07-25
| | | | | | | | | | | | | | | | Update existing Mellanox copyright lines to 2008, and add such lines to files where they are missing. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> 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>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-07-24
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: MAINTAINERS: Remove Glenn Streiff from NetEffect entry mlx4_core: Improve error message when not enough UAR pages are available IB/mlx4: Add support for memory management extensions and local DMA L_Key IB/mthca: Keep free count for MTT buddy allocator mlx4_core: Keep free count for MTT buddy allocator mlx4_code: Add missing FW status return code IB/mlx4: Rename struct mlx4_lso_seg to mlx4_wqe_lso_seg mlx4_core: Add module parameter to enable QoS support RDMA/iwcm: Remove IB_ACCESS_LOCAL_WRITE from remote QP attributes IPoIB: Include err code in trace message for ib_sa_path_rec_get() failures IB/sa_query: Check if sm_ah is NULL in ib_sa_remove_one() IB/ehca: Release mutex in error path of alloc_small_queue_page() IB/ehca: Use default value for Local CA ACK Delay if FW returns 0 IB/ehca: Filter PATH_MIG events if QP was never armed IB/iser: Add support for RDMA_CM_EVENT_ADDR_CHANGE event RDMA/cma: Add RDMA_CM_EVENT_TIMEWAIT_EXIT event RDMA/cma: Add RDMA_CM_EVENT_ADDR_CHANGE event
| * mlx4_core: Improve error message when not enough UAR pages are availableRoland Dreier2008-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an mlx4 device with default FW (which gives a UAR BAR size of 8 MB) is used in a system with 64 KB pages, then there are only 8192/64==128 UAR pages available. However, the first 128 UAR pages are reserved for use with event queue doorbells, so no UAR pages are available to do anything else with, which means that the driver cannot work. The current driver fails with a fairly cryptic "Failed to allocate driver access region, aborting" message in this situation. Fix the driver to detect the problem earlier and print out a clearer description of the problem and a suggestion of how to fix it (use a new firmware image). Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * IB/mlx4: Add support for memory management extensions and local DMA L_KeyRoland Dreier2008-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | Add support for the following operations to mlx4 when device firmware supports them: - Send with invalidate and local invalidate send queue work requests; - Allocate/free fast register MRs; - Allocate/free fast register MR page lists; - Fast register MR send queue work requests; - Local DMA L_Key. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Keep free count for MTT buddy allocatorRoland Dreier2008-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MTT entries are allocated with a buddy allocator, which just keeps bitmaps for each level of the buddy table. However, all free space starts out at the highest order, and small allocations start scanning from the lowest order. When the lowest order tables have no free space, this can lead to scanning potentially millions of bits before finding a free entry at a higher order. We can avoid this by just keeping a count of how many free entries each order has, and skipping the bitmap scan when an order is completely empty. This provides a nice performance boost for a negligible increase in memory usage. Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_code: Add missing FW status return codeJack Morgenstein2008-07-22
| | | | | | | | | | | | | | | | | | | | | | Add ICM_ERROR firmware status code. In mapping to errnos, -ENFILE seems closest. This is in preparation for providing more detailed log info using mlx4_err() in low-level driver when a non-zero status is returned. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * mlx4_core: Add module parameter to enable QoS supportJack Morgenstein2008-07-22
| | | | | | | | | | | | | | | | | | Add a module parameter "enable_qos" to mlx4_core. If this param is set, enable support for QoS in the INIT_HCA command. By default, the parameter is set to 0 (disabled). Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architecturesAndrea Righi2008-07-24
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On 32-bit architectures PAGE_ALIGN() truncates 64-bit values to the 32-bit boundary. For example: u64 val = PAGE_ALIGN(size); always returns a value < 4GB even if size is greater than 4GB. The problem resides in PAGE_MASK definition (from include/asm-x86/page.h for example): #define PAGE_SHIFT 12 #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) ... #define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) The "~" is performed on a 32-bit value, so everything in "and" with PAGE_MASK greater than 4GB will be truncated to the 32-bit boundary. Using the ALIGN() macro seems to be the right way, because it uses typeof(addr) for the mask. Also move the PAGE_ALIGN() definitions out of include/asm-*/page.h in include/linux/mm.h. See also lkml discussion: http://lkml.org/lkml/2008/6/11/237 [akpm@linux-foundation.org: fix drivers/media/video/uvc/uvc_queue.c] [akpm@linux-foundation.org: fix v850] [akpm@linux-foundation.org: fix powerpc] [akpm@linux-foundation.org: fix arm] [akpm@linux-foundation.org: fix mips] [akpm@linux-foundation.org: fix drivers/media/video/pvrusb2/pvrusb2-dvb.c] [akpm@linux-foundation.org: fix drivers/mtd/maps/uclinux.c] [akpm@linux-foundation.org: fix powerpc] Signed-off-by: Andrea Righi <righi.andrea@gmail.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mlx4_core: Use MOD_STAT_CFG command to get minimal page sizeVladimir Sokolovsky2008-07-15
| | | | | | | | | | | | | | | | | | | | | There was a bug in some versions of the mlx4 driver in mlx4_alloc_fmr(), which hardcoded the minimum acceptable page_shift to be 12. However, new ConnectX firmware can support a minimum page_shift of 9 (log_pg_sz of 9 returned by QUERY_DEV_LIM) -- so with old drivers, ib_fmr_alloc() would fail for ULPs using the device minimum when creating FMRs. To preserve firmware compatibility with released mlx4 drivers, the firmware will continue to return 12 as before for log_page_sz in QUERY_DEV_CAP for these drivers. However, to enable new drivers to take advantage of the available smaller page size, the mlx4 driver now first sets the log_pg_sz to the device minimum by setting a log_page_sz value to 0 via the MOD_STAT_CFG command and then reading the real minimum via QUERY_DEV_CAP. Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il> Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Add support for blocking multicast loopback packetsRon Livne2008-07-15
| | | | | | | | | Add support for handling the IB_QP_CREATE_MULTICAST_BLOCK_LOOPBACK flag by using the per-multicast group loopback blocking feature of mlx4 hardware. Signed-off-by: Ron Livne <ronli@voltaire.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Support creation of FMRs with pages smaller than 4KOren Duer2008-05-05
| | | | | | | | | | Don't hard code a test against a minimum page shift of 12, since the device may support smaller pages. Test against the actual smallest page size from the device capabilities. Signed-off-by: Oren Duer <oren@mellanox.co.il> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Avoid recycling old FMR R_Keys too soonOlaf Kirch2008-04-29
| | | | | | | | | | | | | | | | | | | | | | | When a FMR is unmapped, mlx4 resets the map count to 0, and clears the upper part of the R_Key which is used as the sequence counter. This poses a problem for RDS, which uses ib_fmr_unmap as a fence operation. RDS assumes that after issuing an unmap, the old R_Keys will be invalid for a "reasonable" period of time. For instance, Oracle processes uses shared memory buffers allocated from a pool of buffers. When a process dies, we want to reclaim these buffers -- but we must make sure there are no pending RDMA operations to/from those buffers. The only way to achieve that is by using unmap and sync the TPT. However, when the sequence count is reset on unmap, there is a high likelihood that a new mapping will be given the same R_Key that was issued a few milliseconds ago. To prevent this, don't reset the sequence count when unmapping a FMR. Signed-off-by: Olaf Kirch <olaf.kirch@oracle.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Add a way to set the "collapsed" CQ flagYevgeny Petrilin2008-04-29
| | | | | | | | Extend the mlx4_cq_resize() API with a way to set the "collapsed" flag for the CQ being created. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Add helper to move QP to ready-to-sendYevgeny Petrilin2008-04-25
| | | | | | | Avoid duplicating code in ethernet and FC modules. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Add HW queues allocation helpersYevgeny Petrilin2008-04-25
| | | | | | | | Wrap doorbell, buffer and MTT allocation in helper functions for ethernet and FC modules to use. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: CQ resizing should pass a 0 opcode modifier to MODIFY_CQVladimir Sokolovsky2008-04-23
| | | | | | | | | The call to mlx4_MODIFY_CQ() had a typo so that mlx4_cq_resize() was actually asking the FW to modify a CQ's interrupt moderation rather than asking it to resize a CQ. Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Move kernel doorbell management into coreYevgeny Petrilin2008-04-23
| | | | | | | | | In addition to mlx4_ib, there will be ethernet and FC consumers of mlx4_core, so move the code for managing kernel doorbells into the core module to avoid having to duplicate this multiple times. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Fix incorrect commentEli Cohen2008-04-17
| | | | | | | | mlx4 hardware does not support external DDR memory. Moreover, UAR area (BAR 2) can change depending on FW version. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Fix race when detaching a QP from a multicast groupEli Cohen2008-04-17
| | | | | | | | | | | | | | When detaching the last QP from an MCG entry, we need to make sure that at any time, there will be no entry with zero number of QPs which is linked to the list of the MCGs of the corresponding hash index. So don't write back the MCG entry if we are removing the last QP; just unlink the entry. Also, remove an unnecessary MCG read when attaching a QP requires allocation of a new entry in the AMGM. Signed-off-by: Eli Cohen <eli@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Add support for resizing CQsVladimir Sokolovsky2008-04-17
| | | | | Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* IB/mlx4: Add support for modifying CQ moderation parametersEli Cohen2008-04-17
| | | | | Signed-off-by: Eli Cohen <eli@mellnaox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* mlx4_core: Increase max number of QPs to 128KJack Morgenstein2008-04-17
| | | | | | | | With the advent large clusters which utilize multicore hosts, 64K QPs is not enough. We should increase the default maximum for QPs to 128K. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
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