- 11 7月, 2013 1 次提交
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由 Eliezer Tamir 提交于
Rename the file and correct all the places where it is included. Signed-off-by: NEliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 6月, 2013 1 次提交
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由 Eric Dumazet 提交于
Signed-off-by: NEric Dumazet <edumazet@google.com> mlx4 exclusively uses order-2 allocations in RX path, which are likely to fail under memory pressure. We therefore drop frames more than needed. This patch tries order-3, order-2, order-1 and finally order-0 allocations to keep good performance, yet allow allocations if/when memory gets fragmented. By using larger pages, and avoiding unnecessary get_page()/put_page() on compound pages, this patch improves performance as well, lowering false sharing on struct page. Also use GFP_KERNEL allocations in initialization path, as allocating 12 MB (390 order-3 pages) can easily fail with GFP_ATOMIC. Signed-off-by: NEric Dumazet <edumazet@google.com> Cc: Amir Vadai <amirv@mellanox.com> Acked-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 6月, 2013 1 次提交
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由 Amir Vadai 提交于
Add basic support for LLS. Signed-off-by: NAmir Vadai <amirv@mellanox.com> Reviewed-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 4月, 2013 1 次提交
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由 Amir Vadai 提交于
The patch allows to enable/disable HW timestamping for incoming and/or outgoing packets. It adds and initializes all structs and callbacks needed by kernel TS API. To enable/disable HW timestamping appropriate ioctl should be used. Currently HWTSTAMP_FILTER_ALL/NONE and HWTSAMP_TX_ON/OFF only are supported. When enabling TS on receive flow - VLAN stripping will be disabled. Also were made all relevant changes in RX/TX flows to consider TS request and plant HW timestamps into relevant structures. mlx4_ib was fixed to compile with new mlx4_cq_alloc() signature. Signed-off-by: NEugenia Emantayev <eugenia@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 4月, 2013 1 次提交
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由 Patrick McHardy 提交于
Add a protocol argument to the VLAN packet tagging functions. In case of HW tagging, we need that protocol available in the ndo_start_xmit functions, so it is stored in a new field in the skb. The new field fits into a hole (on 64 bit) and doesn't increase the sks's size. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 2月, 2013 1 次提交
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由 Sasha Levin 提交于
I'm not sure why, but the hlist for each entry iterators were conceived list_for_each_entry(pos, head, member) The hlist ones were greedy and wanted an extra parameter: hlist_for_each_entry(tpos, pos, head, member) Why did they need an extra pos parameter? I'm not quite sure. Not only they don't really need it, it also prevents the iterator from looking exactly like the list iterator, which is unfortunate. Besides the semantic patch, there was some manual work required: - Fix up the actual hlist iterators in linux/list.h - Fix up the declaration of other iterators based on the hlist ones. - A very small amount of places were using the 'node' parameter, this was modified to use 'obj->member' instead. - Coccinelle didn't handle the hlist_for_each_entry_safe iterator properly, so those had to be fixed up manually. The semantic patch which is mostly the work of Peter Senna Tschudin is here: @@ iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host; type T; expression a,c,d,e; identifier b; statement S; @@ -T b; <+... when != b ( hlist_for_each_entry(a, - b, c, d) S | hlist_for_each_entry_continue(a, - b, c) S | hlist_for_each_entry_from(a, - b, c) S | hlist_for_each_entry_rcu(a, - b, c, d) S | hlist_for_each_entry_rcu_bh(a, - b, c, d) S | hlist_for_each_entry_continue_rcu_bh(a, - b, c) S | for_each_busy_worker(a, c, - b, d) S | ax25_uid_for_each(a, - b, c) S | ax25_for_each(a, - b, c) S | inet_bind_bucket_for_each(a, - b, c) S | sctp_for_each_hentry(a, - b, c) S | sk_for_each(a, - b, c) S | sk_for_each_rcu(a, - b, c) S | sk_for_each_from -(a, b) +(a) S + sk_for_each_from(a) S | sk_for_each_safe(a, - b, c, d) S | sk_for_each_bound(a, - b, c) S | hlist_for_each_entry_safe(a, - b, c, d, e) S | hlist_for_each_entry_continue_rcu(a, - b, c) S | nr_neigh_for_each(a, - b, c) S | nr_neigh_for_each_safe(a, - b, c, d) S | nr_node_for_each(a, - b, c) S | nr_node_for_each_safe(a, - b, c, d) S | - for_each_gfn_sp(a, c, d, b) S + for_each_gfn_sp(a, c, d) S | - for_each_gfn_indirect_valid_sp(a, c, d, b) S + for_each_gfn_indirect_valid_sp(a, c, d) S | for_each_host(a, - b, c) S | for_each_host_safe(a, - b, c, d) S | for_each_mesh_entry(a, - b, c, d) S ) ...+> [akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c] [akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c] [akpm@linux-foundation.org: checkpatch fixes] [akpm@linux-foundation.org: fix warnings] [akpm@linux-foudnation.org: redo intrusive kvm changes] Tested-by: NPeter Senna Tschudin <peter.senna@gmail.com> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NSasha Levin <sasha.levin@oracle.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Gleb Natapov <gleb@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 09 2月, 2013 1 次提交
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由 Joe Perches 提交于
alloc failures already get standardized OOM messages and a dump_stack. For the affected mallocs around these OOM messages: Converted kmallocs with multiplies to kmalloc_array. Converted a kmalloc/memcpy to kmemdup. Removed now unused stack variables. Removed unnecessary parentheses. Neatened alignment. Signed-off-by: NJoe Perches <joe@perches.com> Acked-by: NArend van Spriel <arend@broadcom.com> Acked-by: NMarc Kleine-Budde <mkl@pengutronix.de> Acked-by: NJohn W. Linville <linville@tuxdriver.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 2月, 2013 3 次提交
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由 Yan Burman 提交于
As a preparation step for supporting multiple unicast addresses, store MAC addresses in hash table. Remove the radix tree for MAC addresses per QP, as it's not in use. Signed-off-by: NYan Burman <yanb@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yan Burman 提交于
Currently, RX path code that does RX filtering is not optimized and does an expensive conversion. In order to use ether_addr_equal_64bits which is optimized for such cases, we need the MAC address kept by the device to be in the form of unsigned char array instead of u64. Store the MAC address as unsigned char array and convert to/from u64 out of the fast path when needed. Side effect of this is that we no longer need priv->mac, since it's the same as dev->dev_addr. This optimization was suggested by Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NYan Burman <yanb@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yan Burman 提交于
Currently there are relatively complex conditional checks in the fast path, for TX loopback enabling and resulting RX filter logic. Move elaborate if's out of data path, replace them with a single flag for each state and update that state from appropriate places. Also, in native (non SRIOV) mode and not in loopback or in selftest, there is no need to try and filter out packets that HW loopback-ed, as in native mode we do not loopback packets anymore. Signed-off-by: NYan Burman <yanb@mellanox.com> Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 27 11月, 2012 1 次提交
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由 Or Gerlitz 提交于
ConnectX-3 devices can use either 64- or 32-byte completion queue entries (CQEs) and event queue entries (EQEs). Using 64-byte EQEs/CQEs performs better because each entry is aligned to a complete cacheline. This patch queries the HCA's capabilities, and if it supports 64-byte CQEs and EQES the driver will configure the HW to work in 64-byte mode. The 32-byte vs 64-byte mode is global per HCA and not per CQ or EQ. Since this mode is global, userspace (libmlx4) must be updated to work with the configured CQE size, and guests using SR-IOV virtual functions need to know both EQE and CQE size. In case one of the 64-byte CQE/EQE capabilities is activated, the patch makes sure that older guest drivers that use the QUERY_DEV_FUNC command (e.g as done in mlx4_core of Linux 3.3..3.6) will notice that they need an update to be able to work with the PPF. This is done by changing the returned pf_context_behaviour not to be zero any more. In case none of these capabilities is activated that value remains zero and older guest drivers can run OK. The SRIOV related flow is as follows 1. the PPF does the detection of the new capabilities using QUERY_DEV_CAP command. 2. the PPF activates the new capabilities using INIT_HCA. 3. the VF detects if the PPF activated the capabilities using QUERY_HCA, and if this is the case activates them for itself too. Note that the VF detects that it must be aware to the new PF behaviour using QUERY_FUNC_CAP. Steps 1 and 2 apply also for native mode. User space notification is done through a new field introduced in struct mlx4_ib_ucontext which holds device capabilities for which user space must take action. This changes the binary interface so the ABI towards libmlx4 exposed through uverbs is bumped from 3 to 4 but only when **needed** i.e. only when the driver does use 64-byte CQEs or future device capabilities which must be in sync by user space. This practice allows to work with unmodified libmlx4 on older devices (e.g A0, B0) which don't support 64-byte CQEs. In order to keep existing systems functional when they update to a newer kernel that contains these changes in VF and userspace ABI, a module parameter enable_64b_cqe_eqe must be set to enable 64-byte mode; the default is currently false. Signed-off-by: NEli Cohen <eli@mellanox.com> Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NRoland Dreier <roland@purestorage.com>
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- 20 11月, 2012 1 次提交
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由 Ben Hutchings 提交于
Commit fa37a958 ('mlx4_en: Moving to work with GRO') left behind the Kconfig depends/select, some dead code and comments referring to LRO. Signed-off-by: NBen Hutchings <bhutchings@solarflare.com> Acked-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 8月, 2012 1 次提交
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由 Amir Vadai 提交于
Should NOT check SMAC=DMAC when: 1. loopback is turned on 2. validate_loopback is true. Fixed it accordingly. Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 7月, 2012 1 次提交
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In its receive path, mlx4_en driver maps each page chunk that it pushes to the hardware and unmaps it when pushing it up the stack. This limits throughput to about 3Gbps on a Power7 8-core machine. One solution is to map the entire allocated page at once. However, this requires that we keep track of every page fragment we give to a descriptor. We also need to work with the discipline that all fragments will be released (in the sense that it will not be reused by the driver anymore) in the order they are allocated to the driver. This requires that we don't reuse any fragments, every single one of them must be reallocated. We do that by releasing all the fragments that are processed and only after finished processing the descriptors, we start the refill. We also must somehow guarantee that we either refill all fragments in a descriptor or none at all, without resorting to giving up a page fragment that we would have already given. Otherwise, we would break the discipline of only releasing the fragments in the order they were allocated. This has passed page allocation fault injections (restricted to the driver by using required-start and required-end) and device hotplug while 16 TCP streams were able to deliver more than 9Gbps. Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 7月, 2012 1 次提交
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由 Amir Vadai 提交于
Use RFS infrastructure and flow steering in HW to keep CPU affinity of rx interrupts and application per TCP stream. A flow steering filter is added to the HW whenever the RFS ndo callback is invoked by core networking code. Because the invocation takes place in interrupt context, the actual setup of HW is done using workqueue. Whenever new filter is added, the driver checks for expiry of existing filters. Since there's window in time between the point where the core RFS code invoked the ndo callback, to the point where the HW is configured from the workqueue context, the 2nd, 3rd etc packets from that stream will cause the net core to invoke the callback again and again. To prevent inefficient/double configuration of the HW, the filters are kept in a database which is indexed using hash function to enable fast access. Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 7月, 2012 1 次提交
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由 Hadar Hen Zion 提交于
The drop action is implemented by allocating a QP and keeping it in a reset state such that the HW drops any packets which are steered to that QP. When a drop action is requested, we attach the relevant flow to that QP. Sign-off-by: NHadar Hen Zion <hadarh@mellanox.co.il> Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 4月, 2012 1 次提交
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由 Amir Vadai 提交于
Instead of relying on HW to change schedule queue by UP, schedule queue is fixed for a tx_ring, and UP in WQE is ignored in this aspect. This resolves two issues with untagged traffic: 1. untagged traffic has no UP in packet which is needed for QoS. The change above allows setting the schedule queue (and by that the UP) of such a stream. 2. BlueFlame uses the same field used by vlan tag. So forcing UP from QPC allows using BF for untagged but prioritized traffic. In old firmware that force UP is not supported, untagged traffic will not subject to QoS. Because UP is set by QP, need to always have a tx ring per UP, even if pfcrx module paramter is false. Signed-off-by: NAmir Vadai <amirv@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 3月, 2012 2 次提交
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由 Yevgeny Petrilin 提交于
The keys used for the hardware RSS topelitz hash are of type __be32 where the values provided by the driver are from array of u32, this triggered sparse warning on incorrect type in assignment as of different base types. Since these values are picked randomly, the fix is to transform the key to __be32 by executing cpu_to_be_32() Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yevgeny Petrilin 提交于
Localized the pdev->dev, and using dma_map instead of pci_map There are multiple map/unmap operations on data path, optimizing those by saving redundant pointer access. Those places were identified as hot-spots when running kernel profiling during some benchmarks. The fixes had most impact when testing packet rate with small packets, reducing several % from CPU load, and in some case being the difference between reaching wire speed or being CPU bound. Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 2月, 2012 3 次提交
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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: NThadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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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: NThadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Pradeep A Dalvi 提交于
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: NPradeep A Dalvi <netdev@pradeepdalvi.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 2月, 2012 1 次提交
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由 Joe Perches 提交于
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: NJoe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 1月, 2012 1 次提交
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由 Yevgeny Petrilin 提交于
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: NAmir Vadai <amirv@mellanox.co.il> Reviewed-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 12月, 2011 1 次提交
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由 Yevgeny Petrilin 提交于
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: 1202d460Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 12月, 2011 1 次提交
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由 Eugenia Emantayev 提交于
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: NEugenia Emantayev <eugenia@mellanox.co.il> Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 11月, 2011 2 次提交
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由 Or Gerlitz 提交于
Using RSS which takes into account UDP headers is controlled by a module param, fix the setting of the HW RSS context to align with that scheme. So far it was uncoditionally allowing hashing on the UDP headers. Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Or Gerlitz 提交于
Towards adding RSS support for IB drivers/application who use the mlx4 HW, make the RSS related definitions global and change the mlx4_en driver to use them. Signed-off-by: NOr Gerlitz <ogerlitz@mellanox.com> Signed-off-by: NShlomo Pongratz <shlomop@mellanox.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 11月, 2011 1 次提交
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由 Yevgeny Petrilin 提交于
When HW doesn't remove FCS bytes they are reported in the completion byte count, we don't need to take them to skb. Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 10月, 2011 1 次提交
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由 Ian Campbell 提交于
Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 10月, 2011 1 次提交
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由 Eric Dumazet 提交于
skb->truesize must account for allocated memory, not the used part of it. Doing this work is important to avoid unexpected OOM situations. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> CC: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 19 10月, 2011 5 次提交
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由 Yevgeny Petrilin 提交于
Moving to Toeplitz function in RSS calculation. Reporting rxhash in skb. Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yevgeny Petrilin 提交于
Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yevgeny Petrilin 提交于
Not updating common counters from data path. The checksum counters are per ring, summarizing them when collecting statistics. Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Yevgeny Petrilin 提交于
Canceling FCS removal where FW allows for better alignment of incoming data. Signed-off-by: NYevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
To ease skb->truesize sanitization, its better to be able to localize all references to skb frags size. Define accessors : skb_frag_size() to fetch frag size, and skb_frag_size_{set|add|sub}() to manipulate it. Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 8月, 2011 1 次提交
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由 Jeff Kirsher 提交于
Moves the Mellanox driver into drivers/net/ethernet/mellanox/ and make the necessary Kconfig and Makefile changes. CC: Roland Dreier <roland@kernel.org> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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- 22 7月, 2011 1 次提交
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由 Jiri Pirko 提交于
- unify vlan and nonvlan path - kill priv->vlgrp and mlx4_en_vlan_rx_register Signed-off-by: NJiri Pirko <jpirko@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 6月, 2011 1 次提交
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由 Joe Perches 提交于
Unnecessary casts of void * clutter the code. These are the remainder casts after several specific patches to remove netdev_priv and dev_priv. Done via coccinelle script (and a little editing): $ cat cast_void_pointer.cocci @@ type T; T *pt; void *pv; @@ - pt = (T *)pv; + pt = pv; Signed-off-by: NJoe Perches <joe@perches.com> Acked-by: NSjur Brændeland <sjur.brandeland@stericsson.com> Acked-By: NChris Snook <chris.snook@gmail.com> Acked-by: NJon Mason <jdmason@kudzu.us> Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org> Acked-by: NDavid Dillow <dave@thedillows.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 4月, 2011 1 次提交
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由 Michał Mirosław 提交于
Signed-off-by: NMichał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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