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path: root/drivers/net/ethernet
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2015-05-09sfc: Own header for nic-specific sriov functions, single instance of ↵Shradha Shah15-210/+355
netdev_ops and sriov removed from Falcon code By putting all the efx_{siena,ef10}_sriov_* declarations in {siena,ef10}_sriov.h, ensure they cannot be called from nic-generic code. Also fixes up an instance of this, where mcdi.c was calling efx_siena_sriov_flr. The single instance of netdev_ops should call general high level functions that can then call something adapter specific in efx_nic_type. We should only do adapter specialisation via efx_nic_type. Removal of sriov functionality from the Falcon code means that tests are needed for the presence of some callbacks. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09net: macb: Handle the RXUBR interrupt on all devicesNathan Sullivan1-1/+10
The same hardware issue the at91 must work around applies to at least the Zynq ethernet, and possibly more devices. The driver also needs to handle the RXUBR interrupt since it turns it on with MACB_RX_INT_FLAGS anyway. Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-07igb: Fix NULL assignment to incorrect variable in igb_reset_q_vectorToshiaki Makita1-1/+1
adapter->tx_ring is set to NULL where rx_ring should be. Fixes: 5536d2102a2d ("igb: Combine q_vector and ring allocation into a single function") Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-07igb: Fix oops on changing number of ringsToshiaki Makita1-0/+2
When changing the number of rings by ethtool -L, q_vectors are reused, which causes oops because of uninitialized pointers. - When an rx is reused as a tx, q_vector->rx.ring is not set to NULL, which misleads igb_poll() to determine that it has an rx ring although it actually points to the tx ring. - When a tx is reused as an rx, q_vector->rx.ring->skb (q_vector->ring[0].skb) has a value that was used as tx_stats before. Fix these problems by zeroing it out on reuseing it. Fixes: 02ef6e1d0b00 ("igb: Fix queue allocation method to accommodate changing during runtime") Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-06net/mlx4_core: Work properly with EQ numbers > 256 in SRIOVYishai Hadas1-7/+7
The Firmware uses dynamic EQs allocation based on number of VFs and max EQs that can be allocated. As a result, VF can have EQ numbers that are larger than 256. According to the firmware spec, the max value is limited to be 1024 (10 bits), adapt the relevant code accordingly. This bug was impossible to hit prior to commit 7ae0e400cd93 ("net/mlx4_core: Flexible (asymmetric) allocation of EQs and MSI-X vectors for PF/VFs") which actually enables large number of EQs for VFs. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net/mlx4_en: Fix off-by-one in counters manipulationEran Ben Elisha1-1/+1
This caused the en_stats_adder helper to accumulate a field which is not related to the counter, fix that. Fixes: a3333b35da16 ('net/mlx4_en: Moderate ethtool callback to show [..]') Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Fix kernel-doc warningsMichal Simek3-18/+32
This patch remove kernel-doc warnings. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Removed _of_ prefix in probe and remove functionsSrikanth Thokala1-7/+7
Synchronize names with other drivers. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Use of_property_* callsSrikanth Thokala1-20/+15
Use of_property_* calls Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Use devm_* callsSrikanth Thokala1-27/+27
use devm_* calls Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Use pdev instead of opSrikanth Thokala1-23/+24
Synchronize names with other drivers Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Fix comments blocksMichal Simek3-59/+71
There is rule for network drivers with comments blocks which is newly checked by checkpatch.pl script. Let's fix it. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Removed coding style errors and warningsSrikanth Thokala2-20/+21
Removed checkpatch.pl errors and warnings. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Support phy-less mode of operationSrikanth Thokala1-5/+5
This patch adds proper checks to handle the PHY-less case. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Handle jumbo frames for lesser frame sizesSrikanth Thokala2-28/+27
In the current implementation, jumbo frames are supported only for the frame sizes > 16K. This patch corrects this logic to handle jumbo frames for lesser frame sizes (< 16K) ensuring jumbo frame MTU is within the limit of max frame size configured in the h/w design. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Service completion interrupts ASAPPeter Crosthwaite1-2/+4
The packet completion interrupts for TX and RX should be serviced before the packets are consumed. This ensures against the degenerate case when a new completion interrupt is raised after the handler has exited but before the interrupts are cleared. In this case its possible for the ISR to clear an unhandled interrupt (leading to potential deadlock). Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Tested-by: Jason Wu <huanyu@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Handle 0 packet receive gracefullyPeter Crosthwaite1-3/+4
The AXI-DMA rx-delay interrupt can sometimes be triggered when there are 0 outstanding packets received. This is due to the fact that the receive function will greedily consume as many packets as possible on interrupt. So if two packets (with a very particular timing) arrive in succession they will each cause the rx-delay interrupt, but the first interrupt will consume both packets. This means the second interrupt is a 0 packet receive. This is mostly OK, except that the tail pointer register is updated unconditionally on receive. Currently the tail pointer is always set to the current bd-ring descriptor under the assumption that the hardware has moved onto the next descriptor. What this means for length 0 recv is the current descriptor that the hardware is potentially yet to use will be marked as the tail. This causes the hardware to think its run out of descriptors deadlocking the whole rx path. Fixed by updating the tail pointer to the most recent successfully consumed descriptor. Reported-by: Wendy Liang <wendy.liang@xilinx.com> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Tested-by: Jason Wu <huanyu@xilinx.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06net: axienet: Support for RGMIISrikanth Thokala1-1/+8
This patch adds support for the RGMII. The h/w configuration parameter C_PHY_TYPE, which represents the interface configured in the design, is used to differentiate various interfaces supported by AXI Ethernet. Signed-off-by: Srikanth Thokala <sthokal@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06cxgb4: Discard the packet if the length is greater than mtuHariprasad Shenai2-2/+16
pktgen sends raw udp packets and bypasses most of the linux networking stack. User can specify different packet sizes. Hence we need to discard the packet if the length is greater than mtu Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06cxgb4: Move SGE Ingress DMA state monitor code to a new routineHariprasad Shenai3-79/+156
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06cxgb4: Add device node to ULD infoHariprasad Shenai3-1/+3
Adds device node to ULD info. Use the node info to alloc_ring() for ctrl TX queues Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06cxgb4: Pass in a Congestion Channel Map to t4_sge_alloc_rxq()Hariprasad Shenai3-0/+45
Passes a Congestion Channel Map to t4_sge_alloc_rxq() for the Ethernet RX Queues based on the MPS Buffer Group Map of the TX Channel rather than just the TX Channel Map. Also, in t4_sge_alloc_rxq() for T5, setting up the Congestion Manager values of the new RX Ethernet Queue is done by firmware now. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06cxgb4: Enable congestion notification from SGE for IQs and FLs.Hariprasad Shenai5-13/+28
Also changed the name of t4_hw.c:get_mps_bg_map() to t4_get_mps_bg_map() and make it an exported routine with a definition in cxgb4.h. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-06cxgb4: Make sure that Freelist size is larger than Egress Congestion ThresholdHariprasad Shenai2-1/+14
We need to make sure that the Free List Size, in pointers, is at least 2 Egress Queue Units (8 pointers/each) larger than the SGE's Egress Congestion Threshold (in pointers). Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04bnx2x: Fix to prevent inner-reloadYuval Mintz1-5/+5
Submit 909d9faae2a44 ("bnx2x: Prevent inner-reload while VFs exist") contained a bug - MTU change was not prevented by it; Instead, it `randomally' prevented bnx2x_resume() from running [harmless yet wrong]. This moves the check to its correct spot. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04Revert "Revert "smc91x: retrieve IRQ and trigger flags in a modern way""David S. Miller1-8/+12
This reverts commit 8d7d9cca4390062ccd09ffd9fdb37d1c4eeea9ac. Now that the necessary infrastructure is really all there in the tree, we can put this change back in. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04net/smsc911x: fix irq resource allocation failureKamlakant Patel1-6/+6
When smsc911x uses GPIO as the interrupt controller, and if both are loaded as modules, we get following error: "smsc911x: Could not allocate irq resource" This issue is because of smsc911x using platform_get_resource to get device tree based irq resource. commit "9ec36ca (of/irq: do irq resolution in platform_get_irq)" and commit "7085a7 (drivers: platform: parse IRQ flags from resources)" add support in platform_get_irq to resolve irq and irq_flags respectively for both modern device tree and legacy static platform data platforms. Modify smsc911x driver to use platform_get_irq to pick up irq resource correctly and use irq_get_trigger_type to get the IRQ trigger flags. Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04ixgbe: Use a signed type to hold error codesMark Rustad4-11/+11
Because error codes are negative, it only makes sense to consistently use signed types when handling them. Also remove some explicit comparisons with 0 on these variables. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-04ixgbe: Release semaphore bits in the right orderMark Rustad1-4/+4
The global semaphore bits should be released in the reverse of the order that they were taken, so correct that. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-04ixgbe: Fix IOSF SB access issuesMark Rustad1-37/+65
IOSF is the Intel On-chip System Fabric used in SOCs. IOSF SB is the IOSF SideBand message interface. This patch serializes IOSF SB access using both phy bits in the SWFW_SEMAPHORE register. It also adds a helper function to wait for IOSF SB accesses to complete. Use the new function to perform this wait before each access, as specified in the datasheet, in addition to using it to wait for IOSF SB read/write completion. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-04e1000e: fix call to do_div() to use u64 argJeff Kirsher1-6/+7
We were using s64 for lat_ns (latency nano-second value) since in our calculations a negative value could be a resultant. For negative values, we then assign lat_ns to be zero, so the value passed to do_div() was never negative, but do_div() expects the argument type to be u64, so do a cast to resolve a compile warning seen on PowerPC. CC: Yanjiang Jin <yanjiang.jin@windriver.com> CC: Yanir Lubetkin <yanirx.lubetkin@intel.com> Reported-by: Yanjiang Jin <yanjiang.jin@windriver.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
2015-05-04e1000e: Do not allow CRC stripping to be disabled on 82579 w/ jumbo framesAlexander Duyck1-0/+14
The driver wasn't allowing jumbo frames to be enabled when CRC stripping was disabled, however it was allowing CRC stripping to be disabled while jumbo frames were enabled. This fixes that by making it so that the NETIF_F_RXFCS flag cannot be set when jumbo frames are enabled on 82579 and newer parts. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-04e1000e: Cleanup handling of VLAN_HLEN as a part of max frame sizeAlexander Duyck3-16/+14
When the VLAN_HLEN was added to the calculation for the maximum frame size there seems to have been a number of issues added to the driver. The first issue is that in some cases the maximum frame size for a device never really reached the actual maximum frame size as the VLAN header length was not included the calculation for that value. As a result some parts only supported a maximum frame size of either 1496 in the case of parts that didn't support jumbo frames, and 8996 in the case of the parts that do. The second issue is the fact that there were several checks that weren't updated so as a result setting an MTU of 1500 was treated as enabling jumbo frames as the calculated value was 1522 instead of 1518. I have addressed those by replacing ETH_FRAME_LEN with VLAN_ETH_FRAME_LEN where appropriate. The final issue was the fact that lowering the MTU below 1500 would cause the driver to allocate 2K buffers for the rings. This is an old issue that was fixed several years ago in igb/ixgbe and I am addressing now by just replacing == with a <= so that we always just round up to 1522 for anything that isn't a jumbo frame. Fixes: c751a3d58cf2d ("e1000e: Correctly include VLAN_HLEN when changing interface MTU") Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-04e100: don't initialize int object to zeroJean Sacren1-1/+1
'err' will be overwritten so no need to initialize it to zero. Signed-off-by: Jean Sacren <sakiwit@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-04igb: simplify and clean up igb_enable_mas()Todd Fujinaka1-20/+7
igb_enable_mas() should only be called for the 82575 and has no clear return so changing it to void. Also simplify the odd conditional expression. Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-04via-rhine: close SMP transmit races.françois romieu1-6/+45
7ab87ff4c770eed71e3777936299292739fcd0fe ("via-rhine: move work from irq handler to softirq and beyond") forgot to explicitely control the lifespan of the tx_dirty and tx_cur pointers. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04via-rhine: dma_wmb transmit barrier.françois romieu1-1/+1
Follow the now usual transmit descriptor update path: 1. content change 2. dma_wmb 3. ownership change Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04via-rhine: add consistent memory barrier in vlan receive code.françois romieu1-8/+14
The NAPI receive path depends on desc->rx_status but it does not enforce any explicit receive barrier. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04via-rhine: kiss rx_head_desc goodbye.françois romieu1-10/+3
The driver no longer produces holes in its receive ring so rx_head_desc only duplicates cur_rx. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04via-rhine: forbid holes in the receive descriptor ring.françois romieu1-50/+53
Rationales: - throttle work under memory pressure - lower receive descriptor recycling latency for the network adapter - lower the maintenance burden of uncommon paths The patch is twofold: - it fails early if the receive ring can't be completely initialized at dev->open() time - it drops packets on the floor in the napi receive handler so as to keep the received ring full Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04via-rhine: gotoize rhine_open error path.françois romieu1-6/+10
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04via-rhine: allocate and map receive buffer in a single transactionfrançois romieu1-14/+43
It's used to initialize the receive ring but it will actually shine when the receive poll code is reworked. Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04via-rhine: commit receive buffer address before descriptor status update.françois romieu1-0/+1
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04ixgbevf: Use dev_kfree_skb_any in xmit path, not dev_kfree_skbAlexander Duyck1-1/+1
With netpoll making use of the transmit function it is possible for the ndo_start_xmit function to be called with irqs disabled. As such we need to use dev_kfree_skb_any in the Tx cleanup path for frames that are dropped. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04r8169: Do not use dev_kfree_skb in xmit pathAlexander Duyck1-2/+2
The function r8169_csum_workaround is called in the ndo_start_xmit path of the r8169 driver. As such it should not be using dev_kfree_skb as it is not irq safe, so instead we should be using dev_kfree_skb_any for freeing in the dropped path, and dev_consume_skb_any for any frames that were transmitted. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04fm10k: Do not assume budget will never be 0 for NAPIAlexander Duyck1-2/+2
The netpoll path will call napi->poll with a budget of 0 in order to clean the Tx rings only. This change updates the fm10k driver so that it will correctly support that instead of cleaning 1 Rx frame if a budget of 0 is received. Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04drivers/net: include <module.h> for modular stmmac_platform codePaul Gortmaker1-0/+1
This file is built off of a tristate Kconfig option and also contains modular function calls so it should explicitly include module.h to avoid compile breakage during header shuffles done in the future. Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: netdev@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller22-80/+121
Merge net into net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-02net: rocker: Use ether_addr_equalSimon Horman1-2/+2
A small cleanup to make use of the ether_addr_equal helper. Signed-off-by: Simon Horman <simon.horman@netronome.com> Acked-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-01drivers: net: xgene: fix kbuild warningsIyappan Subramanian2-1/+3
Fixed the following kbuild warnings: 1. unused variable 'of_id' 2. buffer overflow 'ring_cfg' 5 <= 5 Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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