summaryrefslogtreecommitdiffstats
path: root/drivers/net/ethernet/cavium/liquidio
AgeCommit message (Collapse)AuthorFilesLines
2017-07-14liquidio: fix possible eeprom format string overflowArnd Bergmann1-1/+1
gcc reports that the temporary buffer for computing the string length may be too small here: drivers/net/ethernet/cavium/liquidio/lio_ethtool.c: In function 'lio_get_eeprom_len': /drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:345:21: error: 'sprintf' may write a terminating nul past the end of the destination [-Werror=format-overflow=] len = sprintf(buf, "boardname:%s serialnum:%s maj:%lld min:%lld\n", ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:345:6: note: 'sprintf' output between 35 and 167 bytes into a destination of size 128 len = sprintf(buf, "boardname:%s serialnum:%s maj:%lld min:%lld\n", This extends it to 192 bytes, which is certainly enough. As far as I could tell, there are no other constraints that require a specific maximum size. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-06liquidio: fix bug in soft reset failure detectionDerek Chickles2-2/+2
The code that detects a failed soft reset of Octeon is comparing the wrong value against the reset value of the Octeon SLI_SCRATCH_1 register, resulting in an inability to detect a soft reset failure. Fix it by using the correct value in the comparison, which is any non-zero value. Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters") Fixes: c0eab5b3580a ("liquidio: CN23XX firmware download") Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-07-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds21-195/+255
Pull networking updates from David Miller: "Reasonably busy this cycle, but perhaps not as busy as in the 4.12 merge window: 1) Several optimizations for UDP processing under high load from Paolo Abeni. 2) Support pacing internally in TCP when using the sch_fq packet scheduler for this is not practical. From Eric Dumazet. 3) Support mutliple filter chains per qdisc, from Jiri Pirko. 4) Move to 1ms TCP timestamp clock, from Eric Dumazet. 5) Add batch dequeueing to vhost_net, from Jason Wang. 6) Flesh out more completely SCTP checksum offload support, from Davide Caratti. 7) More plumbing of extended netlink ACKs, from David Ahern, Pablo Neira Ayuso, and Matthias Schiffer. 8) Add devlink support to nfp driver, from Simon Horman. 9) Add RTM_F_FIB_MATCH flag to RTM_GETROUTE queries, from Roopa Prabhu. 10) Add stack depth tracking to BPF verifier and use this information in the various eBPF JITs. From Alexei Starovoitov. 11) Support XDP on qed device VFs, from Yuval Mintz. 12) Introduce BPF PROG ID for better introspection of installed BPF programs. From Martin KaFai Lau. 13) Add bpf_set_hash helper for TC bpf programs, from Daniel Borkmann. 14) For loads, allow narrower accesses in bpf verifier checking, from Yonghong Song. 15) Support MIPS in the BPF selftests and samples infrastructure, the MIPS eBPF JIT will be merged in via the MIPS GIT tree. From David Daney. 16) Support kernel based TLS, from Dave Watson and others. 17) Remove completely DST garbage collection, from Wei Wang. 18) Allow installing TCP MD5 rules using prefixes, from Ivan Delalande. 19) Add XDP support to Intel i40e driver, from Björn Töpel 20) Add support for TC flower offload in nfp driver, from Simon Horman, Pieter Jansen van Vuuren, Benjamin LaHaise, Jakub Kicinski, and Bert van Leeuwen. 21) IPSEC offloading support in mlx5, from Ilan Tayari. 22) Add HW PTP support to macb driver, from Rafal Ozieblo. 23) Networking refcount_t conversions, From Elena Reshetova. 24) Add sock_ops support to BPF, from Lawrence Brako. This is useful for tuning the TCP sockopt settings of a group of applications, currently via CGROUPs" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1899 commits) net: phy: dp83867: add workaround for incorrect RX_CTRL pin strap dt-bindings: phy: dp83867: provide a workaround for incorrect RX_CTRL pin strap cxgb4: Support for get_ts_info ethtool method cxgb4: Add PTP Hardware Clock (PHC) support cxgb4: time stamping interface for PTP nfp: default to chained metadata prepend format nfp: remove legacy MAC address lookup nfp: improve order of interfaces in breakout mode net: macb: remove extraneous return when MACB_EXT_DESC is defined bpf: add missing break in for the TCP_BPF_SNDCWND_CLAMP case bpf: fix return in load_bpf_file mpls: fix rtm policy in mpls_getroute net, ax25: convert ax25_cb.refcount from atomic_t to refcount_t net, ax25: convert ax25_route.refcount from atomic_t to refcount_t net, ax25: convert ax25_uid_assoc.refcount from atomic_t to refcount_t net, sctp: convert sctp_ep_common.refcnt from atomic_t to refcount_t net, sctp: convert sctp_transport.refcnt from atomic_t to refcount_t net, sctp: convert sctp_chunk.refcnt from atomic_t to refcount_t net, sctp: convert sctp_datamsg.refcnt from atomic_t to refcount_t net, sctp: convert sctp_auth_bytes.refcnt from atomic_t to refcount_t ...
2017-06-22liquidio: stop using huge static buffer, save 4096k in .dataDenys Vlasenko3-8/+4
Only compile-tested - I don't have the hardware. >From code inspection, octeon_pci_write_core_mem() appears to be safe wrt unaligned source. In any case, u8 fbuf[] was not guaranteed to be aligned anyway. Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> CC: Felix Manlunas <felix.manlunas@cavium.com> CC: Prasad Kanneganti <prasad.kanneganti@cavium.com> CC: Derek Chickles <derek.chickles@cavium.com> CC: David Miller <davem@davemloft.net> CC: netdev@vger.kernel.org CC: linux-kernel@vger.kernel.org Acked-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-20sched/wait: Rename wait_queue_t => wait_queue_entry_tIngo Molnar1-2/+2
Rename: wait_queue_t => wait_queue_entry_t 'wait_queue_t' was always a slight misnomer: its name implies that it's a "queue", but in reality it's a queue *entry*. The 'real' queue is the wait queue head, which had to carry the name. Start sorting this out by renaming it to 'wait_queue_entry_t'. This also allows the real structure name 'struct __wait_queue' to lose its double underscore and become 'struct wait_queue_entry', which is the more canonical nomenclature for such data types. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-06-18liquidio: replace info-pointer mode with buffer-pointer-only modePrasad Kanneganti11-109/+37
Each Octeon output ring can DMA packets to host memory in two modes: info- pointer mode and buffer-pointer-only mode. In info-pointer mode, Octeon takes two buffer pointers for each packet and places the length of the packet along with specified number of bytes from the beginning of the packet into one buffer and the rest of the packet in a separate buffer. In buffer-pointer-only mode, Octeon takes single buffer pointer and places the length of the packet at the beginning of the buffer followed by the packet data. This patch switches all Octeon output rings from info-pointer mode to buffer-pointer-only mode. This results in fewer DMA setups and cache line snoops. Signed-off-by: Prasad Kanneganti <pkanneganti@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-18liquidio: implement vlan filter enable and disablePrasad Kanneganti3-10/+32
Add implementation to support ethtool -K ethX rx-vlan-filter on/off. Rename OCTNET_CMD_ENABLE_VLAN_FILTER command to OCTNET_CMD_VLAN_FILTER_CTL and add OCTNET_CMD_VLAN_FILTER_ENABLE and OCTNET_CMD_VLAN_FILTER_DISABLE parameters so that it can be used to enable or disable the filter. Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-16networking: introduce and use skb_put_data()Johannes Berg1-2/+2
A common pattern with skb_put() is to just want to memcpy() some data into the new space, introduce skb_put_data() for this. An spatch similar to the one for skb_put_zero() converts many of the places using it: @@ identifier p, p2; expression len, skb, data; type t, t2; @@ ( -p = skb_put(skb, len); +p = skb_put_data(skb, data, len); | -p = (t)skb_put(skb, len); +p = skb_put_data(skb, data, len); ) ( p2 = (t2)p; -memcpy(p2, data, len); | -memcpy(p, data, len); ) @@ type t, t2; identifier p, p2; expression skb, data; @@ t *p; ... ( -p = skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); | -p = (t *)skb_put(skb, sizeof(t)); +p = skb_put_data(skb, data, sizeof(t)); ) ( p2 = (t2)p; -memcpy(p2, data, sizeof(*p)); | -memcpy(p, data, sizeof(*p)); ) @@ expression skb, len, data; @@ -memcpy(skb_put(skb, len), data, len); +skb_put_data(skb, data, len); (again, manually post-processed to retain some comments) Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-14liquidio: fix VF driver off-by-one bug when setting ethtool -C ethX rx-framesWeilin Chang1-1/+1
Signed-off-by: Weilin Chang <weilin.chang@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-09liquidio: disallow enabling firmware debug from a VFDerek Chickles2-5/+8
Disallow enabling firmware debug from a VF. Only PF is allowed to do that. Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02liquidio: Fix checkpatch errors with references crossing single lineSatanand Burla3-12/+10
Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-02liquidio: VF interrupt initialization cleanupRick Farrington2-12/+17
Set initialization state variable to (reflect interrupt initialization) at correct time (immediately after having configured interrupts). This fixes problem of inconsistent IRQ allocation in case of [obscure] failure when negotiating with PF driver during init. Clean-up of interrupt enablement during initialization & avoid potential race condition with chip-specific code (i.e. perform interrupt control in main driver module). Added explanatory comments regarding interrupt enablement. Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-26liquidio: fix inaccurate count of napi-processed rx packets reported to OcteonPrasad Kanneganti2-3/+5
lio_enable_irq (called by napi poll) is reporting to Octeon an inaccurate count of processed rx packets causing Octeon to eventually stop forwarding packets to the host. Fix it by using this formula for an accurate count: processed rx packets = droq->pkt_count - droq->pkts_pending Also increase SOFT_COMMAND_BUFFER_SIZE to match what the firmware expects. Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-26liquidio: fix rare pci_driver.probe failure of VF driverPrasad Kanneganti2-7/+10
There's a rare pci_driver.probe failure of the VF driver that's caused by PF/VF handshake going out of sync. The culprit is octeon_mbox_write() who ignores an ack timeout condition; it just keeps unconditionally writing all elements of mbox_cmd->data[] even when the other side is not ready for them. Fix it by making each write of mbox_cmd->data[i] conditional to having previously received an ack. Also fix the octeon_mbox_state enum such that each state gets a unique value. Also add ULL suffix to numeric literals in macro definitions. Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-21net: ethernet: update drivers to handle HWTSTAMP_FILTER_NTP_ALLMiroslav Lichvar2-0/+2
Include HWTSTAMP_FILTER_NTP_ALL in net_hwtstamp_validate() as a valid filter and update drivers which can timestamp all packets, or which explicitly list unsupported filters instead of using a default case, to handle the filter. CC: Richard Cochran <richardcochran@gmail.com> CC: Willem de Bruijn <willemb@google.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-18liquidio: make the spinlock octeon_devices_lock staticColin Ian King1-1/+1
octeon_devices_lock can be made static as it does not need to be in global scope. Cleans up sparse warning: "warning: symbol 'octeon_devices_lock' was not declared. Should it be static?" Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-17liquidio: fix PF falsely indicating success at setting MAC address of a ↵Felix Manlunas1-0/+3
nonexistent VF In the function assigned to .ndo_set_vf_mac, check the validity of the vfidx argument before proceeding to tell the firmware to set the VF MAC address. Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-17liquidio: fix insmod failure when multiple NICs are plugged inRick Farrington3-10/+123
When multiple liquidio NICs are plugged in, the first insmod of the PF driver succeeds. But after an rmmod, a subsequent insmod fails. Reason is during rmmod, the PF driver resets the Octeon of only one of the NICs; it neglects to reset the Octeons of the other NICs. Fix the insmod failure by adding the missing Octeon resets at rmmod. Keep a per-NIC refcount that indicates the number of active PFs in a given NIC. When the refcount goes to zero, then reset the Octeon of that NIC. Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-16liquidio: use pcie_flr instead of duplicating itChristoph Hellwig1-16/+1
Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-30liquidio: silence a locking static checker warningDan Carpenter1-0/+1
Presumably we never hit this return, but static checkers complain that we need to unlock so we may as well fix that. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-21liquidio: remove unnecessary variable assignmentArnd Bergmann1-2/+0
gcc points out an useless assignment that was added during code refactoring: drivers/net/ethernet/cavium/liquidio/lio_ethtool.c: In function 'octnet_intrmod_callback': drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:1315:59: error: parameter 'oct_dev' set but not used [-Werror=unused-but-set-parameter] This is harmless but can clearly be remove to avoid the warning. Fixes: 50c0add534d2 ("liquidio: refactor interrupt moderation code") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-08liquidio: fix VF incorrectly indicating that it successfully set its VLANFelix Manlunas5-5/+43
For security reasons, NIC firmware does not allow VF to set its VLAN if PF set it already. Firmware allows VF to set its VLAN if PF did not set it. After the VF instructs the firmware to set the VLAN, VF always indicates (via return 0) that the operation is successful--even for the times when it isn't. Put in a mechanism for the VF's set VLAN function to receive the firmware response code, then make that function return -EPERM if the firmware forbids the operation. Make that mechanism available for other functions that may, in the future, be interested in receiving the response code from the firmware. That mechanism involves adding new fields to struct octnic_ctrl_pkt, so make all users of struct octnic_ctrl_pkt initialize the struct to zero before using it; otherwise, the mechanism might act on uninitialized garbage. Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-06liquidio: fix Octeon core watchdog timeout false alarmFelix Manlunas3-77/+107
Detection of watchdog timeout of Octeon cores is flawed and susceptible to false alarms. Refactor by removing the detection code, and in its place, leverage existing code that monitors for an indication from the NIC firmware that an Octeon core crashed; expand the meaning of the indication to "an Octeon core crashed or its watchdog timer expired". Detection of watchdog timeout is now delegated to an exception handler in the NIC firmware; this is free of false alarms. Also if there's an Octeon core crash or watchdog timeout: (1) Disable VF Ethernet links. (2) Decrement the module refcount by an amount equal to the number of active VFs of the NIC whose Octeon core crashed or had a watchdog timeout. The refcount will continue to reflect the active VFs of other liquidio NIC(s) (if present) whose Octeon cores are faultless. Item (2) is needed to avoid the case of not being able to unload the driver because the module refcount is stuck at some non-zero number. There is code that, in normal cases, decrements the refcount upon receiving a message from the firmware that a VF driver was unloaded. But in exceptional cases like an Octeon core crash or watchdog timeout, arrival of that particular message from the firmware might be unreliable. That normal case code is changed to not touch the refcount in the exceptional case to avoid contention (over the refcount) with the liquidio_watchdog kernel thread who will carry out item (2). Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-05liquidio: clear the correct memoryDan Carpenter1-1/+1
There is a cut and paste bug here so we accidentally clear the first few bytes of "resp" a second time instead clearing "ctx". Fixes: 50c0add534d2 ("liquidio: refactor interrupt moderation code") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-30drivers: add explicit interrupt.h includesFlorian Westphal2-0/+2
These files all use functions declared in interrupt.h, but currently rely on implicit inclusion of this file (via netns/xfrm.h). That won't work anymore when the flow cache is removed so include that header where needed. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-28liquidio: refactor interrupt moderation codePrasad Kanneganti5-244/+276
Refactor interrupt moderation code for flexibility because parameters are different for 10G and 25G cards. Currently parameters (for 10G only) come from macros compiled-in to the PF and VF drivers; fix it so that parameters suitable for the card (10G or 25G) come from the NIC firmware via response to a command. Also bump up driver version to 1.5.1 to match newer NIC firmware version. Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-24liquidio: do not reset Octeon if NIC firmware was preloadedFelix Manlunas2-13/+33
The PF driver is incorrectly resetting Octeon when the module parameter "fw_type=none" is there. "fw_type=none" means the PF should not load any firmware to the NIC because Octeon is already running preloaded firmware. Fix it by putting an if (fw_type != none) around the reset code. Because the Octeon reset is now conditionally gone, when unloading the driver, conditionally send the RESET_PF command to the firmware who will then free up PF-related data structures. Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-22liquidio: fix tx completions in napi pollVSR Burru2-17/+22
If there are no egress packets pending, then don't look for tx completions in napi poll. Also, fix broken tx queue wakeup logic. Signed-off-by: VSR Burru <veerasenareddy.burru@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-22liquidio: allocate RX buffers in OOM conditions in PF and VFSatanand Burla7-0/+103
Add workqueue that is periodically run to try to allocate RX buffers in OOM conditions in PF and VF. Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-22liquidio: fix Coverity scan errorsFelix Manlunas2-2/+4
Fix Coverity scan errors by not dereferencing lio->glists_dma_base pointer if it's NULL. See http://marc.info/?l=linux-netdev&m=149002294305614&w=2 Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: VSR Burru <veerasenareddy.burru@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-21liquidio: fix for vf mac addr command sent to nic firmwareRick Farrington4-8/+30
Change to support host<->firmware command return value. Fix for vf mac addr state command. 1. Added support for firmware commands to return a value: - previously, the returned code overlapped with host codes, thus commands were only returning 0 (success) or -1 (interpreted as timeout) - per 'response_manager.h', the error codes are split into two fields (major/minor) now, firmware commands are grouped into their own 'major' group, separate from the host's 'major' group, which allow f/w commands to return any 16-bit value 2. The command to set vf mac addr was logging a success message even if command failed. Now command uses a callback function to log the status message. 3. The command to set vf mac addr was not logging a message when set via the host 'ip' command. Now, the callback function will log an appropriate message. Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-21liquidio: add debug error messages to report command timeoutRick Farrington2-2/+4
Add timeout error message in lio_process_ordered_list(). Add host failure status in existing error message in if_cfg_callback(). Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-21liquidio: remove duplicate codeSatanand Burla3-72/+36
Remove code duplicated in PF and VF; define that code once only in a common header file included by PF and VF. Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-16liquidio: fix wrong information about link modes reported to ethtoolManish Awasthi1-4/+10
Information reported to ethtool about link modes is wrong for 25G NIC. Fix it by checking for presence of 25G NIC, checking the link speed reported by NIC firmware, and then assigning proper values to the ethtool_link_ksettings struct. Signed-off-by: Manish Awasthi <manish.awasthi@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-16liquidio: use meaningful names for IRQsRick Farrington4-16/+101
All IRQs owned by the PF and VF drivers share the same nondescript name "octeon"; this makes it difficult to setup interrupt affinity. Change the IRQ names to reflect their specific purpose: LiquidIO<id>-<func>-<type>-<queue pair num> Examples: LiquidIO0-pf0-rxtx-3 LiquidIO1-vf1-rxtx-0 LiquidIO0-pf0-aux We cannot use netdev->name for naming the IRQs because: 1. Early during init, the PF and VF drivers require interrupts to send/receive control data from the NIC firmware; so the PF and VF must request IRQs long before the netdev struct is registered. 2. The IRQ name can only be specified at the time it is requested. It cannot be changed after that. Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-16liquidio: remove/replace invalid codeRick Farrington1-16/+10
Remove invalid call to dma_sync_single_for_cpu() because previous DMA allocation was coherent--not streaming. Remove code that references fields in struct list_head; replace it with calls to list_empty() and list_first_entry(). Also, add comment to clarify complicated if statement. Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller7-182/+144
Conflicts: drivers/net/ethernet/broadcom/genet/bcmgenet.c net/core/sock.c Conflicts were overlapping changes in bcmgenet and the lockdep handling of sockets. Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-12liquidio: optimize DMA in NUMA systemsVSR Burru5-22/+9
Optimize DMA in NUMA systems by allocating memory from NUMA node that NIC is plugged in to; DMA will no longer cross NUMA nodes. If NIC IRQs are pinned to a local CPU, that CPU's access to the DMA'd data is also optimized. Signed-off-by: VSR Burru <veerasenareddy.burru@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09liquidio: add support for XPSRick Farrington1-0/+9
Add support for XPS. Signed-off-by: Rick Farrington <ricardo.farrington@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09liquidio: improve UDP TX performanceVSR Burru7-182/+144
Improve UDP TX performance by: * reducing the ring size from 2K to 512 * replacing the numerous streaming DMA allocations for info buffers and gather lists with one large consistent DMA allocation per ring BQL is not effective here. We reduced the ring size because there is heavy overhead with dma_map_single every so often. With iommu=on, dma_map_single in PF Tx data path was taking longer time (~700usec) for every ~250 packets. Debugged intel_iommu code, and found that PF driver is utilizing too many static IO virtual address mapping entries (for gather list entries and info buffers): about 100K entries for two PF's each using 8 rings. Also, finding an empty entry (in rbtree of device domain's iova mapping in kernel) during Tx path becomes a bottleneck every so often; the loop to find the empty entry goes through over 40K iterations; this is too costly and was the major overhead. Overhead is low when this loop quits quickly. Netperf benchmark numbers before and after patch: PF UDP TX +--------+--------+------------+------------+---------+ | | | Before | After | | | Number | | Patch | Patch | | | of | Packet | Throughput | Throughput | Percent | | Flows | Size | (Gbps) | (Gbps) | Change | +--------+--------+------------+------------+---------+ | | 360 | 0.52 | 0.93 | +78.9 | | 1 | 1024 | 1.62 | 2.84 | +75.3 | | | 1518 | 2.44 | 4.21 | +72.5 | +--------+--------+------------+------------+---------+ | | 360 | 0.45 | 1.59 | +253.3 | | 4 | 1024 | 1.34 | 5.48 | +308.9 | | | 1518 | 2.27 | 8.31 | +266.1 | +--------+--------+------------+------------+---------+ | | 360 | 0.40 | 1.61 | +302.5 | | 8 | 1024 | 1.64 | 4.24 | +158.5 | | | 1518 | 2.87 | 6.52 | +127.2 | +--------+--------+------------+------------+---------+ VF UDP TX +--------+--------+------------+------------+---------+ | | | Before | After | | | Number | | Patch | Patch | | | of | Packet | Throughput | Throughput | Percent | | Flows | Size | (Gbps) | (Gbps) | Change | +--------+--------+------------+------------+---------+ | | 360 | 1.28 | 1.49 | +16.4 | | 1 | 1024 | 4.44 | 4.39 | -1.1 | | | 1518 | 6.08 | 6.51 | +7.1 | +--------+--------+------------+------------+---------+ | | 360 | 2.35 | 2.35 | 0.0 | | 4 | 1024 | 6.41 | 8.07 | +25.9 | | | 1518 | 9.56 | 9.54 | -0.2 | +--------+--------+------------+------------+---------+ | | 360 | 3.41 | 3.65 | +7.0 | | 8 | 1024 | 9.35 | 9.34 | -0.1 | | | 1518 | 9.56 | 9.57 | +0.1 | +--------+--------+------------+------------+---------+ Signed-off-by: VSR Burru <veerasenareddy.burru@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-02sched/headers: Prepare to move signal wakeup & sigpending methods from ↵Ingo Molnar1-0/+2
<linux/sched.h> into <linux/sched/signal.h> Fix up affected files that include this signal functionality via sched.h. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-10net: liquidio: fix build errors when linux/phy*.h is removed from net/dsa.hRussell King3-0/+3
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: error: type defaults to 'int' in declaration of 'MODULE_AUTHOR' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:30: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: error: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:31: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: error: type defaults to 'int' in declaration of 'MODULE_LICENSE' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:32: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: error: type defaults to 'int' in declaration of 'MODULE_VERSION' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:33: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:36: error: expected ')' before 'int' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:37: error: expected ')' before string constant drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:325: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:325: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:325: warning: parameter names (without types) in function declaration drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3250: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3250: error: type defaults to 'int' in declaration of 'module_init' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3250: warning: parameter names (without types) in function declaration drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3251: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3251: error: type defaults to 'int' in declaration of 'module_exit' drivers/net/ethernet/cavium/liquidio/lio_vf_main.c:3251: warning: parameter names (without types) in function declaration drivers/net/ethernet/cavium/liquidio/lio_main.c:36: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:36: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:36: error: type defaults to 'int' in declaration of 'MODULE_AUTHOR' drivers/net/ethernet/cavium/liquidio/lio_main.c:36: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:37: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:37: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:37: error: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' drivers/net/ethernet/cavium/liquidio/lio_main.c:37: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:38: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:38: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:38: error: type defaults to 'int' in declaration of 'MODULE_LICENSE' drivers/net/ethernet/cavium/liquidio/lio_main.c:38: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:39: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:39: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:39: error: type defaults to 'int' in declaration of 'MODULE_VERSION' drivers/net/ethernet/cavium/liquidio/lio_main.c:39: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:40: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:40: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:40: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE' drivers/net/ethernet/cavium/liquidio/lio_main.c:40: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:41: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:41: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:41: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE' drivers/net/ethernet/cavium/liquidio/lio_main.c:41: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:42: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:42: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:42: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE' drivers/net/ethernet/cavium/liquidio/lio_main.c:42: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:43: error: expected declaration specifiers or '...' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:43: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:43: error: type defaults to 'int' in declaration of 'MODULE_FIRMWARE' drivers/net/ethernet/cavium/liquidio/lio_main.c:43: error: function declaration isn't a prototype drivers/net/ethernet/cavium/liquidio/lio_main.c:46: error: expected ')' before 'int' drivers/net/ethernet/cavium/liquidio/lio_main.c:48: error: expected ')' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:53: error: expected ')' before 'int' drivers/net/ethernet/cavium/liquidio/lio_main.c:54: error: expected ')' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:57: error: expected ')' before 'sizeof' drivers/net/ethernet/cavium/liquidio/lio_main.c:58: error: expected ')' before string constant drivers/net/ethernet/cavium/liquidio/lio_main.c:498: warning: data definitionhas no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:498: error: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE' drivers/net/ethernet/cavium/liquidio/lio_main.c:498: warning: parameter names (without types) in function declaration drivers/net/ethernet/cavium/liquidio/lio_main.c: In function 'octeon_recv_vf_drv_notice': drivers/net/ethernet/cavium/liquidio/lio_main.c:4393: error: implicit declaration of function 'try_module_get' drivers/net/ethernet/cavium/liquidio/lio_main.c:4400: error: implicit declaration of function 'module_put' drivers/net/ethernet/cavium/liquidio/lio_main.c: At top level: drivers/net/ethernet/cavium/liquidio/lio_main.c:4670: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:4670: error: type defaults to 'int' in declaration of 'module_init' drivers/net/ethernet/cavium/liquidio/lio_main.c:4670: warning: parameter names (without types) in function declaration drivers/net/ethernet/cavium/liquidio/lio_main.c:4671: warning: data definition has no type or storage class drivers/net/ethernet/cavium/liquidio/lio_main.c:4671: error: type defaults to 'int' in declaration of 'module_exit' drivers/net/ethernet/cavium/liquidio/lio_main.c:4671: warning: parameter names (without types) in function declaration Add linux/module.h to both these files. drivers/net/ethernet/cavium/liquidio/octeon_console.c:40:31: error: expected ')' before 'int' drivers/net/ethernet/cavium/liquidio/octeon_console.c:42:4: error: expected ')' before string constant Add linux/moduleparam.h to this file. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07liquidio: do not dereference pointer if it's NULLFelix Manlunas2-2/+2
Fix smatch errors by not dereferencing iq pointer if it's NULL. See http://marc.info/?l=kernel-janitors&m=148637299004834&w=2 Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-01liquidio: fix for iq and droq cnts going negativeSatanand Burla4-2/+15
Flush the mmio writes before releasing spin locks. if the maintained counts get too high > 2M force writeback of the counts to clear them Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-30drivers: net: generalize napi_complete_done()Eric Dumazet2-2/+2
napi_complete_done() allows to opt-in for gro_flush_timeout, added back in linux-3.19, commit 3b47d30396ba ("net: gro: add a per device gro flush timer") This allows for more efficient GRO aggregation without sacrifying latencies. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-26liquidio: Avoid accessing skb after submitting to input queueSatanand Burla2-6/+6
Accessing skb after submitting to input queue can cause access to stale pointers if the skb ends up being transmitted and freed by that time. Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-18net: Remove usage of net_device last_rx memberTobias Klauser2-2/+0
The network stack no longer uses the last_rx member of struct net_device since the bonding driver switched to use its own private last_rx in commit 9f242738376d ("bonding: use last_arp_rx in slave_last_rx()"). However, some drivers still (ab)use the field for their own purposes and some driver just update it without actually using it. Previously, there was an accompanying comment for the last_rx member added in commit 4dc89133f49b ("net: add a comment on netdev->last_rx") which asked drivers not to update is, unless really needed. However, this commend was removed in commit f8ff080dacec ("bonding: remove useless updating of slave->dev->last_rx"), so some drivers added later on still did update last_rx. Remove all usage of last_rx and switch three drivers (sky2, atp and smc91c92_cs) which actually read and write it to use their own private copy in netdev_priv. Compile-tested with allyesconfig and allmodconfig on x86 and arm. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Mirko Lindner <mlindner@marvell.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-13liquidio: use fallback for selecting txqSatanand Burla2-41/+0
Remove assignment to ndo_select_queue so that fallback is used for selecting txq. Also remove the now-useless function that used to be assigned to ndo_select_queue. Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-12liquidio VF: reduce load time of modulePrasad Kanneganti2-4/+5
Reduce the load time of the VF driver by decreasing the wait time between iterations of the loop that polls for a mailbox response from the PF. Also change the wait time units from jiffies to milliseconds. Signed-off-by: Prasad Kanneganti <prasad.kanneganti@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-01-12liquidio: remove unnecessary codeFelix Manlunas1-7/+1
Remove code that's no longer needed. It used to serve a purpose, which was to fix a link-related bug. For a while now, the NIC firmware has had a more elegant fix for that bug. Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Satanand Burla <satananda.burla@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 02:23:59 +0000