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2018-01-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-nextDavid S. Miller28-20/+155
Daniel Borkmann says: ==================== pull-request: bpf-next 2018-01-07 The following pull-request contains BPF updates for your *net-next* tree. The main changes are: 1) Add a start of a framework for extending struct xdp_buff without having the overhead of populating every data at runtime. Idea is to have a new per-queue struct xdp_rxq_info that holds read mostly data (currently that is, queue number and a pointer to the corresponding netdev) which is set up during rxqueue config time. When a XDP program is invoked, struct xdp_buff holds a pointer to struct xdp_rxq_info that the BPF program can then walk. The user facing BPF program that uses struct xdp_md for context can use these members directly, and the verifier rewrites context access transparently by walking the xdp_rxq_info and net_device pointers to load the data, from Jesper. 2) Redo the reporting of offload device information to user space such that it works in combination with network namespaces. The latter is reported through a device/inode tuple as similarly done in other subsystems as well (e.g. perf) in order to identify the namespace. For this to work, ns_get_path() has been generalized such that the namespace can be retrieved not only from a specific task (perf case), but also from a callback where we deduce the netns (ns_common) from a netdevice. bpftool support using the new uapi info and extensive test cases for test_offload.py in BPF selftests have been added as well, from Jakub. 3) Add two bpftool improvements: i) properly report the bpftool version such that it corresponds to the version from the kernel source tree. So pick the right linux/version.h from the source tree instead of the installed one. ii) fix bpftool and also bpf_jit_disasm build with bintutils >= 2.9. The reason for the build breakage is that binutils library changed the function signature to select the disassembler. Given this is needed in multiple tools, add a proper feature detection to the tools/build/features infrastructure, from Roman. 4) Implement the BPF syscall command BPF_MAP_GET_NEXT_KEY for the stacktrace map. It is currently unimplemented, but there are use cases where user space needs to walk all stacktrace map entries e.g. for dumping or deleting map entries w/o having to close and recreate the map. Add BPF selftests along with it, from Yonghong. 5) Few follow-up cleanups for the bpftool cgroup code: i) rename the cgroup 'list' command into 'show' as we have it for other subcommands as well, ii) then alias the 'show' command such that 'list' is accepted which is also common practice in iproute2, and iii) remove couple of newlines from error messages using p_err(), from Jakub. 6) Two follow-up cleanups to sockmap code: i) remove the unused bpf_compute_data_end_sk_skb() function and ii) only build the sockmap infrastructure when CONFIG_INET is enabled since it's only aware of TCP sockets at this time, from John. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05virtio_net: setup xdp_rxq_infoJesper Dangaard Brouer1-1/+13
The virtio_net driver doesn't dynamically change the RX-ring queue layout and backing pages, but instead reject XDP setup if all the conditions for XDP is not meet. Thus, the xdp_rxq_info also remains fairly static. This allow us to simply add the reg/unreg to net_device open/close functions. Driver hook points for xdp_rxq_info: * reg : virtnet_open * unreg: virtnet_close V3: - bugfix, also setup xdp.rxq in receive_mergeable() - Tested bpf-sample prog inside guest on a virtio_net device Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Jason Wang <jasowang@redhat.com> Cc: virtualization@lists.linux-foundation.org Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05tun: setup xdp_rxq_infoJesper Dangaard Brouer1-1/+23
Driver hook points for xdp_rxq_info: * reg : tun_attach * unreg: __tun_detach I've done some manual testing of this tun driver, but I would appriciate good review and someone else running their use-case tests, as I'm not 100% sure I understand the tfile->detached semantics. V2: Removed the skb_array_cleanup() call from V1 by request from Jason Wang. Cc: Jason Wang <jasowang@redhat.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Willem de Bruijn <willemb@google.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05thunderx: setup xdp_rxq_infoJesper Dangaard Brouer3-4/+13
This driver uses a bool scheme for "enable"/"disable" when setting up different resources. Thus, the hook points for xdp_rxq_info is done in the same function call nicvf_rcv_queue_config(). This is activated through enable/disable via nicvf_config_data_transfer(), which is tied into nicvf_stop()/nicvf_open(). Extending driver packet handler call-path nicvf_rcv_pkt_handler() with a pointer to the given struct rcv_queue, in-order to access the xdp_rxq_info data area (in nicvf_xdp_rx()). V2: Driver have no proper error path for failed XDP RX-queue info reg, as nicvf_rcv_queue_config is a void function. Cc: linux-arm-kernel@lists.infradead.org Cc: Sunil Goutham <sgoutham@cavium.com> Cc: Robert Richter <rric@kernel.org> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05nfp: setup xdp_rxq_infoJesper Dangaard Brouer2-3/+12
Driver hook points for xdp_rxq_info: * reg : nfp_net_rx_ring_alloc * unreg: nfp_net_rx_ring_free In struct nfp_net_rx_ring moved member @size into a hole on 64-bit. Thus, the size remaines the same after adding member @xdp_rxq. Cc: oss-drivers@netronome.com Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Simon Horman <simon.horman@netronome.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05bnxt_en: setup xdp_rxq_infoJesper Dangaard Brouer3-0/+13
Driver hook points for xdp_rxq_info: * reg : bnxt_alloc_rx_rings * unreg: bnxt_free_rx_rings This driver should be updated to re-register when changing allocation mode of RX rings. Tested on actual hardware. Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05mlx4: setup xdp_rxq_infoJesper Dangaard Brouer3-5/+15
Driver hook points for xdp_rxq_info: * reg : mlx4_en_create_rx_ring * unreg: mlx4_en_destroy_rx_ring Tested on actual hardware. Cc: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05xdp/qede: setup xdp_rxq_info and intro xdp_rxq_info_is_regJesper Dangaard Brouer3-0/+13
The driver code qede_free_fp_array() depend on kfree() can be called with a NULL pointer. This stems from the qede_alloc_fp_array() function which either (kz)alloc memory for fp->txq or fp->rxq. This also simplifies error handling code in case of memory allocation failures, but xdp_rxq_info_unreg need to know the difference. Introduce xdp_rxq_info_is_reg() to handle if a memory allocation fails and detect this is the failure path by seeing that xdp_rxq_info was not registred yet, which first happens after successful alloaction in qede_init_fp(). Driver hook points for xdp_rxq_info: * reg : qede_init_fp * unreg: qede_free_fp_array Tested on actual hardware with samples/bpf program. V2: Driver have no proper error path for failed XDP RX-queue info reg, as qede_init_fp() is a void function. Cc: everest-linux-l2@cavium.com Cc: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05ixgbe: setup xdp_rxq_infoJesper Dangaard Brouer3-1/+15
Driver hook points for xdp_rxq_info: * reg : ixgbe_setup_rx_resources() * unreg: ixgbe_free_rx_resources() Tested on actual hardware. V2: Fix ixgbe_set_ringparam, clear xdp_rxq_info in temp_ring Cc: intel-wired-lan@lists.osuosl.org Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05i40e: setup xdp_rxq_infoJesper Dangaard Brouer3-2/+21
The i40e driver has a special "FDIR" RX-ring (I40E_VSI_FDIR) which is a sideband channel for configuring/updating the flow director tables. This (i40e_vsi_)type does not invoke XDP-ebpf code. As suggested by Björn (V2): Instead of marking this I40E_VSI_FDIR RX-ring a special case, reverse the logic and only select RX-rings of type I40E_VSI_MAIN to register xdp_rxq_info's for. Driver hook points for xdp_rxq_info: * reg : i40e_setup_rx_descriptors (via i40e_vsi_setup_rx_resources) * unreg: i40e_free_rx_resources (via i40e_vsi_free_rx_resources) Tested on actual hardware with samples/bpf program. V2: Fixed bug in i40e_set_ringparam (memset zero) + match on I40E_VSI_MAIN. V4: Update patch desc that got out-of-sync with code. Cc: intel-wired-lan@lists.osuosl.org Cc: Björn Töpel <bjorn.topel@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de> Acked-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05xdp/mlx5: setup xdp_rxq_infoJesper Dangaard Brouer3-0/+14
The mlx5 driver have a special drop-RQ queue (one per interface) that simply drops all incoming traffic. It helps driver keep other HW objects (flow steering) alive upon down/up operations. It is temporarily pointed by flow steering objects during the interface setup, and when interface is down. It lacks many fields that are set in a regular RQ (for example its state is never switched to MLX5_RQC_STATE_RDY). (Thanks to Tariq Toukan for explanation). The XDP RX-queue info for this drop-RQ marked as unused, which allow us to use the same takedown/free code path as other RX-queues. Driver hook points for xdp_rxq_info: * reg : mlx5e_alloc_rq() * unused: mlx5e_alloc_drop_rq() * unreg : mlx5e_free_rq() Tested on actual hardware with samples/bpf program Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Matan Barak <matanb@mellanox.com> Cc: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-01-05nfp: add basic multicast filteringJakub Kicinski1-2/+5
We currently always pass all multicast traffic through. Only set L2MC when actually needed. Since the driver was not making use of the capability to filter out mcast frames, some FW projects don't implement it any more. Don't warn users if capability is not present (like we do for promisc flag). The lack of L2MC capability is assumed to mean all multicast traffic goes through. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05net: dsa: lan9303: Fix error return code in lan9303_check_device()Wei Yongjun1-1/+1
Fix to return error code -ENODEV from the chip not found error handling case instead of 0(ret have been overwritten to 0 by lan9303_read()), as done elsewhere in this function. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Reviewed-by: Egil Hjelmeland <privat@egil-hjelmeland.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05net: bgmac: Remove short packet padding for DSAFlorian Fainelli1-15/+0
DSA now correctly pads short packets within net/dsa/tag_brcm.c such that this it is no longer necessary to do this within bgmac. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05net: systemport: Remove short packet paddingFlorian Fainelli1-12/+0
Short packet padding added to the driver is only necessary when using Broadcom tags, but since this is now taken care of net/dsa/tag_brcm.c, we are guaranteed being given correctly padded packets. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-05net/mlx5e: hide an unused variableArnd Bergmann1-1/+1
The uplink_rpriv variable was added at the start of the function but only used inside of an #ifdef: drivers/net/ethernet/mellanox/mlx5/core/en_tc.c: In function 'mlx5e_route_lookup_ipv6': drivers/net/ethernet/mellanox/mlx5/core/en_tc.c:1549:25: error: unused variable 'uplink_rpriv' [-Werror=unused-variable] This moves the declaration into that #ifdef as well. Fixes: 5ed99fb421d4 ("net/mlx5e: Move ethernet representors data into separate struct") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04Merge tag 'mac80211-next-for-davem-2018-01-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextDavid S. Miller1-6/+11
Johannes Berg says: ==================== We have things all over the place, no point listing them. One thing is notable: I applied two patches and later reverted them - we'll get back to that once all the driver situation is sorted out. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04tg3: Add Macronix NVRAM supportPrashant Sreedharan2-4/+31
This patch adds the support for Macronix NVRAM Signed-off-by: Prashant Sreedharan <prashant.sreedharan@broadcom.com> Signed-off-by: Satish Baddipadige <satish.baddipadige@broadcom.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04net: dsa: lan9303: Adjust phy_addr_base expressionsEgil Hjelmeland1-5/+5
Simplify calculation of chip->phy_addr_base in lan9303_detect_phy_setup(). Use GENMASK to calculate phys_mii_mask from LAN9303_NUM_PORTS and phy_addr_base. Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-04net: dsa: lan9303: phy_addr_sel_strap rename and retypeEgil Hjelmeland1-10/+10
chip->phy_addr_sel_strap is declared as a bool, but is also used as an integer address base. Rename 'phy_addr_sel_strap' to 'phy_addr_base', and change type to int. Signed-off-by: Egil Hjelmeland <privat@egil-hjelmeland.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03nfp: flower: implement the PORT_REIFY messageDirk van der Merwe4-3/+162
The PORT_REIFY message indicates whether reprs have been created or when they are about to be destroyed. This is necessary so firmware can know which state the driver is in, e.g. the firmware will not send any control messages related to ports when the reprs are destroyed. This prevents nuisance warning messages printed whenever the firmware sends updates for non-existent reprs. Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03nfp: add repr_preclean callbackDirk van der Merwe2-3/+25
Just before a repr is cleaned up, we give the app a chance to perform some preclean configuration while the reprs pointer is still configured for the app. Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03nfp: flower: obtain repr link state only from firmwareDirk van der Merwe2-2/+2
Instead of starting up reprs assuming that there is link, only respond to the link state reported by firmware. Furthermore, ensure link is down after repr netdevs are created. Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mdio: Only perform gpio reset for PHYsAndrew Lunn1-4/+17
Ethernet switch on the MDIO bus have historically performed their own handling of the GPIO reset line. The resent patch to have the MDIO core handle the reset has broken the switch drivers, in that they cannot claim the GPIO. Some switch drivers need more control over the GPIO line than what the MDIO core provides. So restore the historical behaviour by only performing a reset of PHYs, not switches. Fixes: bafbdd527d56 ("phylib: Add device reset GPIO support") Reported-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: phy: convert read-modify-write to phy_modify()Russell King3-112/+46
Convert read-modify-write sequences in at803x, Marvell and core phylib to use phy_modify() to ensure safety. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: phy: add phy_modify() accessorRussell King1-0/+23
Add phy_modify() convenience accessor to complement the mdiobus counterpart. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: phy: marvell: fix paged access racesRussell King1-217/+137
For paged accesses to be truely safe, we need to hold the bus lock to prevent anyone else gaining access to the registers while we modify them. The phydev->lock mutex does not do this: userspace via the MII ioctl can still sneak in and read or write any register while we are on a different page, and the suspend/resume methods can be called by a thread different to the thread polling the phy status. Races have been observed with mvneta on SolidRun Clearfog with phylink, particularly between the phylib worker reading the PHYs status, and the thread resuming mvneta, calling phy_start() which then calls through to m88e1121_config_aneg_rgmii_delays(), which tries to read-modify-write the MSCR register: CPU0 CPU1 marvell_read_status_page() marvell_set_page(phydev, MII_MARVELL_FIBER_PAGE) ... m88e1121_config_aneg_rgmii_delays() set_page(MII_MARVELL_MSCR_PAGE) phy_read(phydev, MII_88E1121_PHY_MSCR_REG) marvell_set_page(phydev, MII_MARVELL_COPPER_PAGE); ... phy_write(phydev, MII_88E1121_PHY_MSCR_REG) The result of this is we end up writing the copper page register 21, which causes the copper PHY to be disabled, and the link partner sees the link immediately go down. Solve this by taking the bus lock instead of the PHY lock, thereby preventing other accesses to the PHY while we are accessing other PHY pages. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: phy: add paged phy register accessorsRussell King1-0/+157
Add a set of paged phy register accessors which are inherently safe in their design against other accesses interfering with the paged access. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: phy: add unlocked accessorsRussell King1-0/+25
Add unlocked versions of the bus accessors, which allows access to the bus with all the tracing. These accessors validate that the bus mutex is held, which is a basic requirement for all mii bus accesses. Also added is a read-modify-write unlocked accessor with the same locking requirements. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: phy: use unlocked accessors for indirect MMD accessesRussell King1-5/+6
Use unlocked accessors for indirect MMD accesses to clause 22 PHYs. This permits tracing of these accesses. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mdiobus: add unlocked accessorsRussell King1-12/+53
Add unlocked versions of the bus accessors, which allows access to the bus with all the tracing. These accessors validate that the bus mutex is held, which is a basic requirement for all mii bus accesses. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03cxgb4: collect TX rate limit info in UP CIM logsRahul Lakkireddy5-39/+100
Collect TX rate limiting related information in UP CIM logs. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: phy: fixed-phy: remove fixed_phy_update_state()Russell King1-31/+0
mvneta is the only user of fixed_phy_update_state(), which has been converted to use phylink instead. Remove fixed_phy_update_state(). Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: add module EEPROM reading supportRussell King1-0/+18
Add support for reading the SFF module's EEPROM via the ethtool API. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: disable MVNETA_CAUSE_PSC_SYNC_CHANGE interruptRussell King1-8/+4
The PSC sync change interrupt can fire multiple times while the link is down, which is caused by noise on the serdes lines. As this isn't information we make use of, it's pointless having the interrupt enabled. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: add EEE supportRussell King1-5/+94
Add support for EEE to mvneta. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: add flow control supportRussell King1-0/+32
Add support for flow control to mvneta. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: add 1000BaseX supportRussell King1-9/+50
Add support for 1000BaseX link modes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: move port configurationRussell King1-31/+20
Move the port configuration and release of reset to mvneta_mac_config() along side the rest of the port mode configuration. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: convert to phylinkRussell King2-243/+176
Convert mvneta to use phylink, which models the MAC to PHY link in a generic, reusable form. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> - remove unused sync status Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: prepare to convert to phylinkRussell King1-41/+60
Prepare to convert mvneta to phylink by splitting the adjust_link function into its consituent parts. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03net: mvneta: ensure PM paths take the rtnl lockRussell King1-0/+4
The netdev core always ensures that the rtnl lock is held while calling the ndo_open() and ndo_stop() methods. However, the suspend/resume paths do not hold the rtnl lock. phylink will expect the rtnl lock to be held when the MAC driver calls it, so we end up with kernel warnings. Take the lock to ensure that these functions are called in a consistent manner. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03sh_eth: kill redundant check in the probe() methodSergei Shtylyov1-2/+1
Browsing thru the driver disassembly, I noticed that gcc was able to figure out that the 'ndev' pointer is always non-NULL when calling free_netdev() on the probe() method's error path and thus skip that redundant NULL check... gcc is smart, be like gcc! :-) Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-03ravb: kill redundant check in the probe() methodSergei Shtylyov1-2/+1
Browsing thru the driver disassembly, I noticed that gcc was able to figure out that the 'ndev' pointer is always non-NULL when calling free_netdev() on the probe() method's error path and thus skip that redundant NULL check... gcc is smart, be like gcc! :-) Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02liquidio: Use zeroing memory allocator than allocator/memsetHimanshu Jha1-5/+2
Use vzalloc for allocating zeroed memory and remove unnecessary memset function. Done using Coccinelle. Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci 0-day tested with no failures. Suggested-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02ethernet/broadcom: Use zeroing memory allocator than allocator/memsetHimanshu Jha2-7/+4
Use dma_zalloc_coherent for allocating zeroed memory and remove unnecessary memset function. Done using Coccinelle. Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci 0-day tested with no failures. Suggested-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02qed: Use zeroing memory allocator than allocator/memsetHimanshu Jha2-9/+6
Use dma_zalloc_coherent and vzalloc for allocating zeroed memory and remove unnecessary memset function. Done using Coccinelle. Generated-by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci 0-day tested with no failures. Suggested-by: Luis R. Rodriguez <mcgrof@kernel.org> Signed-off-by: Himanshu Jha <himanshujha199640@gmail.com> Acked-by: Tomer Tayar <Tomer.Tayar@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02net: stmmac: Allow debug prints of frame_len/COEFlorian Fainelli1-3/+2
There is no reason not to allow printing the frame_len/COE value and put that under a check for ETH_FRAME_LEN, drop it so we can see what the descriptor reports. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02net: stmmac: Pad ring number with zeroes in display_ring()Florian Fainelli3-3/+3
Make the printing of the ring number consistent and properly aligned by padding the ring number with up to 3 zeroes, which covers the maximum ring size. This makes it a lot easier to see outliers in debug prints. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02phylink: remove 'mode' variable from phylink_sfp_module_insert()Russell King1-7/+8
'mode' is actually constant through phylink_sfp_module_insert(), so remove it and replace it with the enumerated constant. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>