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* format-security: move static strings to constKees Cook2017-05-099-10/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While examining output from trial builds with -Wformat-security enabled, many strings were found that should be defined as "const", or as a char array instead of char pointer. This makes some static analysis easier, by producing fewer false positives. As these are all trivial changes, it seemed best to put them all in a single patch rather than chopping them up per maintainer. Link: http://lkml.kernel.org/r/20170405214711.GA5711@beast Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Jes Sorensen <jes@trained-monkey.org> [runner.c] Cc: Tony Lindgren <tony@atomide.com> Cc: Russell King <linux@armlinux.org.uk> Cc: "Maciej W. Rozycki" <macro@linux-mips.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: Yisen Zhuang <yisen.zhuang@huawei.com> Cc: Salil Mehta <salil.mehta@huawei.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Jiri Slaby <jslaby@suse.com> Cc: Patrice Chotard <patrice.chotard@st.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Matt Redfearn <matt.redfearn@imgtec.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Mugunthan V N <mugunthanvnm@ti.com> Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: Jarod Wilson <jarod@redhat.com> Cc: Florian Westphal <fw@strlen.de> Cc: Antonio Quartulli <a@unstable.cc> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Kejian Yan <yankejian@huawei.com> Cc: Daode Huang <huangdaode@hisilicon.com> Cc: Qianqian Xie <xieqianqian@huawei.com> Cc: Philippe Reynes <tremyfr@gmail.com> Cc: Colin Ian King <colin.king@canonical.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Christian Gromm <christian.gromm@microchip.com> Cc: Andrey Shvetsov <andrey.shvetsov@k2l.de> Cc: Jason Litzinger <jlitzingerdev@gmail.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* treewide: spelling: correct diffrent[iate] and banlance typosJoe Perches2017-05-094-4/+4
| | | | | | | | | | Add these misspellings to scripts/spelling.txt too Link: http://lkml.kernel.org/r/962aace119675e5fe87be2a88ddac1a5486f8e60.1490931810.git.joe@perches.com Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts/spelling.txt: add "intialise(d)" pattern and fix typo instancesMasahiro Yamada2017-05-091-4/+4
| | | | | | | | | | | | | | | Fix typos and add the following to the scripts/spelling.txt: intialisation||initialisation intialised||initialised intialise||initialise This commit does not intend to change the British spelling itself. Link: http://lkml.kernel.org/r/1481573103-11329-18-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts/spelling.txt: add regsiter -> register spelling mistakeStephen Boyd2017-05-094-5/+5
| | | | | | | | | | This typo is quite common. Fix it and add it to the spelling file so that checkpatch catches it earlier. Link: http://lkml.kernel.org/r/20170317011131.6881-2-sboyd@codeaurora.org Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* treewide: use kv[mz]alloc* rather than opencoded variantsMichal Hocko2017-05-0914-106/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are many code paths opencoding kvmalloc. Let's use the helper instead. The main difference to kvmalloc is that those users are usually not considering all the aspects of the memory allocator. E.g. allocation requests <= 32kB (with 4kB pages) are basically never failing and invoke OOM killer to satisfy the allocation. This sounds too disruptive for something that has a reasonable fallback - the vmalloc. On the other hand those requests might fallback to vmalloc even when the memory allocator would succeed after several more reclaim/compaction attempts previously. There is no guarantee something like that happens though. This patch converts many of those places to kv[mz]alloc* helpers because they are more conservative. Link: http://lkml.kernel.org/r/20170306103327.2766-2-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> # Xen bits Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Andreas Dilger <andreas.dilger@intel.com> # Lustre Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> # KVM/s390 Acked-by: Dan Williams <dan.j.williams@intel.com> # nvdim Acked-by: David Sterba <dsterba@suse.com> # btrfs Acked-by: Ilya Dryomov <idryomov@gmail.com> # Ceph Acked-by: Tariq Toukan <tariqt@mellanox.com> # mlx4 Acked-by: Leon Romanovsky <leonro@mellanox.com> # mlx5 Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Anton Vorontsov <anton@enomsg.org> Cc: Colin Cross <ccross@android.com> Cc: Tony Luck <tony.luck@intel.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Santosh Raspatur <santosh@chelsio.com> Cc: Hariprasad S <hariprasad@chelsio.com> Cc: Yishai Hadas <yishaih@mellanox.com> Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: "Yan, Zheng" <zyan@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* qede: Fix possible misconfiguration of advertised autoneg value.sudarsana.kalluru@cavium.com2017-05-041-0/+5
| | | | | | | | | Fail the configuration of advertised speed-autoneg value if the config update is not supported. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed: Fix overriding of supported autoneg value.sudarsana.kalluru@cavium.com2017-05-043-1/+9
| | | | | | | | | | | Driver currently uses advertised-autoneg value to populate the supported-autoneg field. When advertised field is updated, user gets the same value for supported field. Supported-autoneg value need to be populated from the link capabilities value returned by the MFW. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* qed*: Fix possible overflow for status block id field.sudarsana.kalluru@cavium.com2017-05-044-10/+9
| | | | | | | | | Value for status block id could be more than 256 in 100G mode, need to update its data type from u8 to u16. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netvsc: make sure napi enabled before vmbus_openstephen hemminger2017-05-042-4/+6
| | | | | | | | This fixes a race where vmbus callback for new packet arriving could occur before NAPI is initialized. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* aquantia: Fix driver name reported by ethtoolPavel Belous2017-05-041-1/+1
| | | | | | | | | | V2: using "aquantia" subsystem tag. The command "ethtool -i ethX" should display driver name (driver: atlantic) instead vendor name (driver: aquantia). Signed-off-by: Pavel Belous <pavel.belous@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* forcedeth: remove unnecessary carrier status checkZhu Yanjun2017-05-041-4/+2
| | | | | | | | | | | Since netif_carrier_on() will do nothing if device's carrier is already on, so it's unnecessary to do carrier status check. It's the same for netif_carrier_off(). Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Move queue restarting in ibmvnic_tx_completeNathan Fontenot2017-05-031-12/+10
| | | | | | | | Restart of the subqueue should occur outside of the loop processing any tx buffers instead of doing this in the middle of the loop. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Record SKB RX queue during pollThomas Falcon2017-05-031-0/+1
| | | | | | | | | Map each RX SKB to the RX queue associated with the driver's RX SCRQ. This should improve the RX CPU load balancing issues seen by the performance team. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Continue skb processing after skb completion errorNathan Fontenot2017-05-031-1/+1
| | | | | | | | There is not a need to stop processing skbs if we encounter a skb that has a receive completion error. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Check for driver reset first in ibmvnic_xmitNathan Fontenot2017-05-031-6/+6
| | | | | | | | Move the check for the driver resetting to the first thing in ibmvnic_xmit(). Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Wait for any pending scrqs entries at driver closeNathan Fontenot2017-05-031-20/+27
| | | | | | | | When closing the ibmvnic driver we need to wait for any pending sub crq entries to ensure they are handled. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Clean up tx pools when closingNathan Fontenot2017-05-031-0/+30
| | | | | | | | | | | | | | | When closing the ibmvnic driver, most notably during the reset path, the tx pools need to be cleaned to ensure there are no hanging skbs that need to be free'ed. The need for this was found during debugging a loss of network traffic after handling a driver reset. The underlying cause was some skbs in the tx pool that were never free'ed. As a result the upper network layers never tried a re-send since it believed the driver still had the skb. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Whitespace correction in release_rx_poolsNathan Fontenot2017-05-031-1/+1
| | | | | Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Delete napi's when releasing driver resourcesNathan Fontenot2017-05-031-0/+9
| | | | | | | | The napi structs allocated at drivier initializatio need to be free'ed when releasing the drivers resources. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Updated reset handlingNathan Fontenot2017-05-032-157/+275
| | | | | | | | | | | | | | | | | | The ibmvnic driver has multiple handlers for resetting the driver depending on the reason the reset is needed (failover, lpm, fatal erors,...). All of the reset handlers do essentially the same thing, this patch moves this work to a common reset handler. By doing this we also allow the driver to better handle situations where we can get a reset while handling a reset. The updated reset handling works by adding a reset work item to the list of resets and then scheduling work to perform the reset. This step is necessary because we can receive a reset in interrupt context and we want to handle the reset out of interrupt context. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Replace is_closed with state fieldNathan Fontenot2017-05-032-9/+23
| | | | | | | | | Replace the is_closed flag in the ibmvnic adapter strcut with a more comprehensive state field that tracks the current state of the driver. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ibmvnic: Move resource initialization to its own routineNathan Fontenot2017-05-031-32/+39
| | | | | | | | Move all of the calls to initialize resources for the driver to a separate routine. Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: usb: qmi_wwan: add Telit ME910 supportDaniele Palmas2017-05-031-0/+1
| | | | | | | | This patch adds support for Telit ME910 PID 0x1100. Signed-off-by: Daniele Palmas <dnlplm@gmail.com> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
* tg3: don't clear stats while tg3_closeYueHaibing2017-05-031-4/+0
| | | | | | | | | | | Now tg3 NIC's stats will be cleared after ifdown/ifup. bond_get_stats traverse its salves to get statistics,cumulative the increment.If a tg3 NIC is added to bonding as a slave,ifdown/ifup will cause bonding's stats become tremendous value (ex.1638.3 PiB) because of negative increment. Fixes: 92feeabf3f67 ("tg3: Save stats across chip resets") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* xdp: use common helper for netlink extended ack reportingDaniel Borkmann2017-05-032-6/+6
| | | | | | | | | | | | | | | | Small follow-up to d74a32acd59a ("xdp: use netlink extended ACK reporting") in order to let drivers all use the same NL_SET_ERR_MSG_MOD() helper macro for reporting. This also ensures that we consistently add the driver's prefix for dumping the report in user space to indicate that the error message is driver specific and not coming from core code. Furthermore, NL_SET_ERR_MSG_MOD() now reuses NL_SET_ERR_MSG() and thus makes all macros check the pointer as suggested. References: https://www.spinics.net/lists/netdev/msg433267.html Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* smsc911x: Adding support for Micochip LAN9250 Ethernet controllerDavid Cai2017-05-032-19/+49
| | | | | | | | Adding support for Microchip LAN9250 Ethernet controller. Signed-off-by: David Cai <david.cai@microchip.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-linus' of ↵Linus Torvalds2017-05-033-4/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: tty: fix comment for __tty_alloc_driver() init/main: properly align the multi-line comment init/main: Fix double "the" in comment Fix dead URLs to ftp.kernel.org drivers: Clean up duplicated email address treewide: Fix typo in xml/driver-api/basics.xml tools/testing/selftests/powerpc: remove redundant CFLAGS in Makefile: "-Wall -O2 -Wall" -> "-O2 -Wall" selftests/timers: Spelling s/privledges/privileges/ HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/ net: phy: dp83848: Fix Typo UBI: Fix typos Documentation: ftrace.txt: Correct nice value of 120 priority net: fec: Fix typo in error msg and comment treewide: Fix typos in printk
| * net: phy: dp83848: Fix TypoAndrew F. Davis2017-03-241-1/+1
| | | | | | | | | | Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * net: fec: Fix typo in error msg and commentPeter Meerwald-Stadler2017-03-241-2/+2
| | | | | | | | | | | | | | Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Cc: Fugang Duan <fugang.duan@nxp.com> Acked-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * treewide: Fix typos in printkMasanari Iida2017-03-241-1/+1
| | | | | | | | | | | | | | | | | | | | This patch fix some spelling typos found in printk. [jkosina@suse.cz: drop arch/arm64/kernel/hibernate.c that was already in place] Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2017-05-03827-31533/+79566
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Millar: "Here are some highlights from the 2065 networking commits that happened this development cycle: 1) XDP support for IXGBE (John Fastabend) and thunderx (Sunil Kowuri) 2) Add a generic XDP driver, so that anyone can test XDP even if they lack a networking device whose driver has explicit XDP support (me). 3) Sparc64 now has an eBPF JIT too (me) 4) Add a BPF program testing framework via BPF_PROG_TEST_RUN (Alexei Starovoitov) 5) Make netfitler network namespace teardown less expensive (Florian Westphal) 6) Add symmetric hashing support to nft_hash (Laura Garcia Liebana) 7) Implement NAPI and GRO in netvsc driver (Stephen Hemminger) 8) Support TC flower offload statistics in mlxsw (Arkadi Sharshevsky) 9) Multiqueue support in stmmac driver (Joao Pinto) 10) Remove TCP timewait recycling, it never really could possibly work well in the real world and timestamp randomization really zaps any hint of usability this feature had (Soheil Hassas Yeganeh) 11) Support level3 vs level4 ECMP route hashing in ipv4 (Nikolay Aleksandrov) 12) Add socket busy poll support to epoll (Sridhar Samudrala) 13) Netlink extended ACK support (Johannes Berg, Pablo Neira Ayuso, and several others) 14) IPSEC hw offload infrastructure (Steffen Klassert)" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2065 commits) tipc: refactor function tipc_sk_recv_stream() tipc: refactor function tipc_sk_recvmsg() net: thunderx: Optimize page recycling for XDP net: thunderx: Support for XDP header adjustment net: thunderx: Add support for XDP_TX net: thunderx: Add support for XDP_DROP net: thunderx: Add basic XDP support net: thunderx: Cleanup receive buffer allocation net: thunderx: Optimize CQE_TX handling net: thunderx: Optimize RBDR descriptor handling net: thunderx: Support for page recycling ipx: call ipxitf_put() in ioctl error path net: sched: add helpers to handle extended actions qed*: Fix issues in the ptp filter config implementation. qede: Fix concurrency issue in PTP Tx path processing. stmmac: Add support for SIMATIC IOT2000 platform net: hns: fix ethtool_get_strings overflow in hns driver tcp: fix wraparound issue in tcp_lp bpf, arm64: fix jit branch offset related to ldimm64 bpf, arm64: implement jiting of BPF_XADD ...
| * | net: thunderx: Optimize page recycling for XDPSunil Goutham2017-05-022-7/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Driver follows a method of taking one extra reference on the page for recycling which is fine in usual packet path where each 64KB page is segmented into multiple receive buffers. But in XDP mode since there is just one receive buffer per page taking extra page reference itself becomes big bottleneck consuming ~50% of CPU cycles due to atomic operations. This patch adds a internal ref count in pgcache for each page and additional page references are taken in a batch instead of just one at a time. Internal i.e 'pgcache->ref_count' and page's i.e 'page->_refcount' counters are compared to check page's recyclability. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Support for XDP header adjustmentSunil Goutham2017-05-022-17/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | When in XDP mode reserve XDP_PACKET_HEADROOM bytes at the start of receive buffer for XDP program to modify headers and adjust packet start. Additional code changes done to handle such packets. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Add support for XDP_TXSunil Goutham2017-05-023-27/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support for XDP_TX i.e transmits packet out of the XDP TX queue mapped to the corresponding Rx queue on which packet is received. Since SQ for XDP TX will be used only on a single cpu i.e SQ description creation and freeing, using atomic free count is not necessary and will become a bottleneck. Hence added a separate 'xdp_free_cnt' used for SQs designated for XDP to track descriptor free count. Changes also include - A new entry 'xdp_page' is added to save transmitted packet's page pointer for later cleanup. - XDP Tx SQ's doorbell is ringed once per NAPI instance. - Retrieving designated SQ for packets being sent out by stack via 'nicvf_xmit'. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Add support for XDP_DROPSunil Goutham2017-05-023-25/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support for XDP_DROP. Also since in XDP mode there is just a single buffer per page, made changes to recycle DMA mapping info as well along with pages. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Add basic XDP supportSunil Goutham2017-05-025-19/+199
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds basic XDP support i.e attaching a BPF program to an interface. Also takes care of allocating separate Tx queues for XDP path and for network stack packet transmission. This patch doesn't support handling of any of the XDP actions, all are treated as XDP_PASS i.e packets will be handed over to the network stack. Changes also involve allocating one receive buffer per page in XDP mode and multiple in normal mode i.e when no BPF program is attached. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Cleanup receive buffer allocationSunil Goutham2017-05-021-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | Get rid of unnecessary double pointer references and type casting in receive buffer allocation code. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Optimize CQE_TX handlingSunil Goutham2017-05-022-28/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Optimized CQE handling with below changes - Feeing descriptors back to SQ in bulk i.e once per NAPI instance instead for every CQE_TX, this will reduce number of atomic updates to 'sq->free_cnt'. - Checking errors in CQE_TX and CQE_RX before calling appropriate fn()s to update error stats i.e reduce branching. Also removed debug messages in packet handling path which otherwise causes issues if DEBUG is enabled. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Optimize RBDR descriptor handlingSunil Goutham2017-05-022-13/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Receive buffer's physical address or iova will anyway not go beyond 49bits, since it is the max supported HW address. As per perf, updating bitfields i.e buf_addr:42 in RBDR descriptor entry consumes lots of cpu cycles, hence changed it to a 64bit field with alignment requirements taken care of. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: thunderx: Support for page recyclingSunil Goutham2017-05-024-20/+119
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds support for page recycling for allocating receive buffers to reduce cost of refilling RBDR ring. Also got rid of using compound pages when pagesize is 4K, only order-0 pages now. Only page is recycled, DMA mappings still needs to be done for every receive buffer allocated due to following constraints - Cannot have just one receive buffer per 64KB page. - There is just one buffer ring shared across 8 Rx queues, so buffers of same page can go to any Rx queue. - HW gives buffer address where packet has been DMA'ed and not the index into buffer ring. This makes it not possible to resue DMA mapping info. So unfortunately have to go through costly mapping route for every buffer. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | qed*: Fix issues in the ptp filter config implementation.sudarsana.kalluru@cavium.com2017-05-022-37/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PTP hardware filter configuration performed by the driver for a given user requested config is not correct for some of the PTP modes. Following changes are needed for PTP config-filter implementation. 1. NIG_REG_TX_PTP_EN register - Bits 0/1/2 respectively enables TimeSync/"V1 frame format support"/"V2 frame format support" on the TX side. Set the associated bits based on the user request. 2. ptp4l application fails to operate in Peer Delay mode. Following changes are needed to fix this, a. Driver should enable (set to 0) DA #1-related bits for IPv4, IPv6 and MAC destination addresses in these registers: NIG_REG_TX_LLH_PTP_RULE_MASK NIG_REG_LLH_PTP_RULE_MASK b. NIG_REG_LLH_PTP_PARAM_MASK/NIG_REG_TX_LLH_PTP_PARAM_MASK should be set to 0x0 in all modes. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | qede: Fix concurrency issue in PTP Tx path processing.sudarsana.kalluru@cavium.com2017-05-022-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PTP Tx timestamping data structures are not protected against the concurrent access in the Tx paths. Protecting the same using atomic bit locks. Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | stmmac: Add support for SIMATIC IOT2000 platformJan Kiszka2017-05-021-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IOT2000 is industrial controller platform, derived from the Intel Galileo Gen2 board. The variant IOT2020 comes with one LAN port, the IOT2040 has two of them. They can be told apart based on the board asset tag in the DMI table. Based on patch by Sascha Weisenberger. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Sascha Weisenberger <sascha.weisenberger@siemens.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: hns: fix ethtool_get_strings overflow in hns driverTimmy Li2017-05-024-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hns_get_sset_count() returns HNS_NET_STATS_CNT and the data space allocated is not enough for ethtool_get_strings(), which will cause random memory corruption. When SLAB and DEBUG_SLAB are both enabled, memory corruptions like the the following can be observed without this patch: [ 43.115200] Slab corruption (Not tainted): Acpi-ParseExt start=ffff801fb0b69030, len=80 [ 43.115206] Redzone: 0x9f911029d006462/0x5f78745f31657070. [ 43.115208] Last user: [<5f7272655f746b70>](0x5f7272655f746b70) [ 43.115214] 010: 70 70 65 31 5f 74 78 5f 70 6b 74 00 6b 6b 6b 6b ppe1_tx_pkt.kkkk [ 43.115217] 030: 70 70 65 31 5f 74 78 5f 70 6b 74 5f 6f 6b 00 6b ppe1_tx_pkt_ok.k [ 43.115218] Next obj: start=ffff801fb0b69098, len=80 [ 43.115220] Redzone: 0x706d655f6f666966/0x9f911029d74e35b. [ 43.115229] Last user: [<ffff0000084b11b0>](acpi_os_release_object+0x28/0x38) [ 43.115231] 000: 74 79 00 6b 6b 6b 6b 6b 70 70 65 31 5f 74 78 5f ty.kkkkkppe1_tx_ [ 43.115232] 010: 70 6b 74 5f 65 72 72 5f 63 73 75 6d 5f 66 61 69 pkt_err_csum_fai Signed-off-by: Timmy Li <lixiaoping3@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: dsa: mv88e6xxx: add VTU support for 88E6390Vivien Didelot2017-05-013-0/+146
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 6390 family of chips use only 2 of the 3 VTU Data registers to pack the MemberTag and PortState VLAN data. This means that they must be written or read before or after each VTU/STU operations. Implement this variant to add support for VTU with such chips. These chips have a 13th bit for the VID thus set their max_vid to 8191. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: dsa: mv88e6xxx: support the VTU Page bitVivien Didelot2017-05-012-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer chips such as the 88E6390 have a VTU Page bit in the VTU VID register to specify a 13th bit for the VID. This can be used to support 8K VLANs. When dumping the whole VTU, all VID bits must be set to one, including this VTU Page bit. Add support for VID greater than 4095. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: dsa: mv88e6xxx: simplify VTU entry getterVivien Didelot2017-05-011-38/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | Make the code which fetches or initializes a new VTU entry more concise. This allows us the get rid of the old underscore prefix naming. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: dsa: mv88e6xxx: make VTU helpers staticVivien Didelot2017-05-012-48/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we have chip operations for VTU accesses, mark all helpers from global1_vtu.c as static. Only the various implementations of the GetNext, LoadPurge and Flush operations need to be exposed. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: dsa: mv88e6xxx: add VTU Load/Purge operationVivien Didelot2017-05-014-57/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new vtu_loadpurge operation to the chip info structure to differ the various implementations of the VTU accesses. Now that the STU handling is abstracted behind VTU operations, kill the obsolete MV88E6XXX_FLAG_STU flag. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net: dsa: mv88e6xxx: add VTU GetNext operationVivien Didelot2017-05-014-48/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new vtu_getnext operation to the chip info structure to differ the various implementations of the VTU accesses. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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