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2018-11-11iwlwifi: fw: use helper to determine whether to dump pagingSara Sharon2-28/+37
Logic is there twice, and we'll need a third place soon for ini dumping. In addition move the dumping to a function, also to enable reuse. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: add new cards for 9560, 9462, 9461 and killer seriesIhab Zhaika1-0/+50
add few PCI ID'S for 9560, 9462, 9461 and killer series. Cc: stable@vger.kernel.org Signed-off-by: Ihab Zhaika <ihab.zhaika@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: remove unused conversion tableEmmanuel Grumbach1-9/+0
chanwidths isn't used now in debugfs-vif.c. Remove it. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: dbg: use helper to check if debug type is setSara Sharon2-19/+24
This enables to incorporate more logic in one place. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: Send non offchannel traffic via AP staAndrei Otcheretianski1-0/+15
TDLS discovery response frame is a unicast direct frame to the peer. Since we don't have a STA for this peer, this frame goes through iwl_tx_skb_non_sta(). As the result aux_sta and some completely arbitrary queue would be selected for this frame, resulting in a queue hang. Fix that by sending such frames through AP sta instead. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: add description to a few generic assert numbersNaftali Goldstein1-1/+5
FW asserts 0x70, 0x71, and 0x73 all just mean that the real error happened in another MAC, and to look there for the problem. Add their descriptions to the assert number lookup table so users get a nicer error message in the logs. Also, since the 4 most-significant bits of the assert number are dynamic, and depend on which MAC the assert occurred on, ignore those bits when looking up the assert name. Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: dbg: avoid passing trigger aroundSara Sharon7-23/+18
The trigger structure is being passed around, when all we care about is whether to dump only monitor or not. Pass a bool instead. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: pcie: don't reset TXQ write pointerSara Sharon1-2/+1
Currently code sets the write pointer when getting the TX queue allocate response. This causes a redundant interrupt with any actual change in the pointer. Remove this write altogether. Fixes: 310181ec34e2 ("iwlwifi: move to TVQM mode") Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: toggle tx antenna if tx fails during connection establishmentAvraham Stern3-15/+56
If tx fails during connection establishment, try another antenna for the next tx. This will increase the chance to establish connection if one of the antennas is blocked. Note that the antenna is toggled even when failing to tx data frames since connection establishment may use EAPOLs for 802.1X authentication/ 4 way handshake. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: fw: do not set sgi bits for HE connectionNaftali Goldstein1-0/+4
If the association supports HE, HT/VHT rates will never be used for Tx and therefore there's no need to set the sgi-per-channel-width-support bits, so don't set them in this case. Fixes: 110b32f065f3 ("iwlwifi: mvm: rs: add basic implementation of the new RS API handlers") Signed-off-by: Naftali Goldstein <naftali.goldstein@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: switch management tx antenna only on tx failureAvraham Stern5-12/+14
Switch the antenna used for management tx only if previous tx failed. If previous tx succeeded, there is no reason to switch antennas. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: enable low latency for soft apTova Mussai4-20/+43
Enable low latency for softAP in all modes (standalone, SCM and DCM). This is in order to minimize the time the softAP leaves the channel for other operations Signed-off-by: Tova Mussai <tova.mussai@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: trans: Clear persistence bit when starting the FWShahar S Matityahu2-0/+19
In D3 suspend flow in 9260 gen2 HW, the NIC receives two PERST signals. The first PERST is expected and indicates the device on coming resume flow. The second PERST causes FW restart FW restart. In order to avoid this issue, the FW set the persistence bit on. Once this bit is set, the FW ignores reset attempts. The problem is when the FW gets assert during D3 and then the persistence bit is set and causes the FW to ignore reset. To handle this issue, the FW opens the preg bit which allows access to the persistence bit, so that the driver clear the persistence bit and reset the NIC. The flow is as follows: the driver checks if the persistence bit is set. If the bit is set, the driver checks if he can clear the bit. If the driver can not clear the bit then there is no point to continue configuring the NIC since it will fail. The fix was added is in start HW flow instead of the resume flow since in general, if the persistence bit is set, the driver can not start the FW. So it is good to check it when we start configuring the NIC. The driver does not need to close the preg bit since the FW close it during the start flow. Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: remove queue_info_lockJohannes Berg5-113/+19
All the queue management code runs under mvm->mutex, so there are only very few cases of accessing the data structures without it: * TX path, which doesn't take any locks anyway * iwl_mvm_wake_sw_queue() and iwl_mvm_stop_sw_queue() where we just (atomically) read a bitmap, so the lock isn't needed. Therefore, we can remove the spinlock. This enables some cleanup in the ugly locking in iwl_mvm_inactivity_check(). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: synchronize TID queue removalJohannes Berg1-0/+10
When we mark a TID as no longer having a queue, there's no guarantee the TX path isn't using this txq_id right now, having accessed it just before we reset the value. To fix this, add synchronize_net() when we change the TIDs from having a queue to not having one, so that we can then be sure that the TX path is no longer accessing that queue. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-11iwlwifi: mvm: remove set but not used variable 'he_phy_data'YueHaibing1-6/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c: In function 'iwl_mvm_rx_mpdu_mq': drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c:1386:7: warning: variable 'he_phy_data' set but not used [-Wunused-but-set-variable] u64 he_phy_data; 'he_phy_data' never used since be introduce in commit 18ead597daa1 ("iwlwifi: support new rx_mpdu_desc api") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-11-10brcmfmac: Use standard SKB list accessors in brcmf_sdiod_sglist_rw.David S. Miller1-63/+74
Instead of direct SKB list pointer accesses. The loops in this function had to be rewritten to accommodate this more easily. The first loop iterates now over the target list in the outer loop, and triggers an mmc data operation when the per-operation limits are hit. Then after the loops, if we have any residue, we trigger the last and final operation. For the page aligned workaround, where we have to copy the read data back into the original list of SKBs, we use a two-tiered loop. The outer loop stays the same and iterates over pktlist, and then we have an inner loop which uses skb_peek_next(). The break logic has been simplified because we know that the aggregate length of the SKBs in the source and destination lists are the same. This change also ends up fixing a bug, having to do with the maintainance of the seg_sz variable and how it drove the outermost loop. It begins as: seg_sz = target_list->qlen; ie. the number of packets in the target_list queue. The loop structure was then: while (seq_sz) { ... while (not at end of target_list) { ... sg_cnt++ ... } ... seg_sz -= sg_cnt; The assumption built into that last statement is that sg_cnt counts how many packets from target_list have been fully processed by the inner loop. But this not true. If we hit one of the limits, such as the max segment size or the max request size, we will break and copy a partial packet then contine back up to the top of the outermost loop. With the new loops we don't have this problem as we don't guard the loop exit with a packet count, but instead use the progression of the pkt_next SKB through the list to the end. The general structure is: sg_cnt = 0; skb_queue_walk(target_list, pkt_next) { pkt_offset = 0; ... sg_cnt++; ... while (pkt_offset < pkt_next->len) { pkt_offset += sg_data_size; if (queued up max per request) mmc_submit_one(); } } if (sg_cnt) mmc_submit_one(); The variables that maintain where we are in the MMC command state such as req_sz, sg_cnt, and sgl are reset when we emit one of these full sized requests. Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-10bpf: do not pass netdev to translate() and prepare() offload callbacksQuentin Monnet2-9/+7
The kernel functions to prepare verifier and translate for offloaded program retrieve "offload" from "prog", and "netdev" from "offload". Then both "prog" and "netdev" are passed to the callbacks. Simplify this by letting the drivers retrieve the net device themselves from the offload object attached to prog - if they need it at all. There is currently no need to pass the netdev as an argument to those functions. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-10bpf: pass prog instead of env to bpf_prog_offload_verifier_prep()Quentin Monnet2-4/+3
Function bpf_prog_offload_verifier_prep(), called from the kernel BPF verifier to run a driver-specific callback for preparing for the verification step for offloaded programs, takes a pointer to a struct bpf_verifier_env object. However, no driver callback needs the whole structure at this time: the two drivers supporting this, nfp and netdevsim, only need a pointer to the struct bpf_prog instance held by env. Update the callback accordingly, on kernel side and in these two drivers. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-10bpf: pass destroy() as a callback and remove its ndo_bpf subcommandQuentin Monnet2-8/+3
As part of the transition from ndo_bpf() to callbacks attached to struct bpf_offload_dev for some of the eBPF offload operations, move the functions related to program destruction to the struct and remove the subcommand that was used to call them through the NDO. Remove function __bpf_offload_ndo(), which is no longer used. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-10bpf: pass translate() as a callback and remove its ndo_bpf subcommandQuentin Monnet2-13/+12
As part of the transition from ndo_bpf() to callbacks attached to struct bpf_offload_dev for some of the eBPF offload operations, move the functions related to code translation to the struct and remove the subcommand that was used to call them through the NDO. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-10bpf: call verifier_prep from its callback in struct bpf_offload_devQuentin Monnet2-21/+22
In a way similar to the change previously brought to the verify_insn hook and to the finalize callback, switch to the newly added ops in struct bpf_prog_offload for calling the functions used to prepare driver verifiers. Since the dev_ops pointer in struct bpf_prog_offload is no longer used by any callback, we can now remove it from struct bpf_prog_offload. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-10bpf: pass a struct with offload callbacks to bpf_offload_dev_create()Quentin Monnet4-7/+7
For passing device functions for offloaded eBPF programs, there used to be no place where to store the pointer without making the non-offloaded programs pay a memory price. As a consequence, three functions were called with ndo_bpf() through specific commands. Now that we have struct bpf_offload_dev, and since none of those operations rely on RTNL, we can turn these three commands into hooks inside the struct bpf_prog_offload_ops, and pass them as part of bpf_offload_dev_create(). This commit effectively passes a pointer to the struct to bpf_offload_dev_create(). We temporarily have two struct bpf_prog_offload_ops instances, one under offdev->ops and one under offload->dev_ops. The next patches will make the transition towards the former, so that offload->dev_ops can be removed, and callbacks relying on ndo_bpf() added to offdev->ops as well. While at it, rename "nfp_bpf_analyzer_ops" as "nfp_bpf_dev_ops" (and similarly for netdevsim). Suggested-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-10nfp: bpf: move nfp_bpf_analyzer_ops from verifier.c to offload.cQuentin Monnet3-8/+12
We are about to add several new callbacks to the struct, all of them defined in offload.c. Move the struct bpf_prog_offload_ops object in that file. As a consequence, nfp_verify_insn() and nfp_finalize() can no longer be static. Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-11-09net: phy: leds: Don't make our own link speed namesKyle Roeschley1-13/+2
The phy core provides a handy phy_speed_to_str() helper, so use that instead of doing our own formatting of the different known link speeds. To do this, increase PHY_LED_TRIGGER_SPEED_SUFFIX_SIZE to 11 so we can fit 'Unsupported' if necessary. Signed-off-by: Kyle Roeschley <kyle.roeschley@ni.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: phy: improve struct phy_device member interrupts handlingHeiner Kallweit1-2/+2
As a heritage from the very early days of phylib member interrupts is defined as u32 even though it's just a flag whether interrupts are enabled. So we can change it to a bitfield member. In addition change the code dealing with this member in a way that it's clear we're dealing with a bool value. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: mvneta: correct typoAlexandre Belloni1-2/+2
The reserved variable should be named reserved1. Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09dpaa2-ptp: defer probe when portal allocation failedIoana Ciornei1-1/+4
The fsl_mc_portal_allocate can fail when the requested MC portals are not yet probed by the fsl_mc_allocator. In this situation, the driver should defer the probe. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09dpaa2-eth: defer probe on object allocateIoana Ciornei1-10/+22
The fsl_mc_object_allocate function can fail because not all allocatable objects are probed by the fsl_mc_allocator at the call time. Defer the dpaa2-eth probe when this happens. Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09nfp: use the new __netdev_tx_sent_queue() BQL optimisationJakub Kicinski1-3/+1
__netdev_tx_sent_queue() was added in commit e59020abf0f ("net: bql: add __netdev_tx_sent_queue()") and allows for better GSO performance. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: qualcomm: rmnet: Fix incorrect assignment of real_devSubash Abhinov Kasiviswanathan1-3/+3
A null dereference was observed when a sysctl was being set from userspace and rmnet was stuck trying to complete some actions in the NETDEV_REGISTER callback. This is because the real_dev is set only after the device registration handler completes. sysctl call stack - <6> Unable to handle kernel NULL pointer dereference at virtual address 00000108 <2> pc : rmnet_vnd_get_iflink+0x1c/0x28 <2> lr : dev_get_iflink+0x2c/0x40 <2> rmnet_vnd_get_iflink+0x1c/0x28 <2> inet6_fill_ifinfo+0x15c/0x234 <2> inet6_ifinfo_notify+0x68/0xd4 <2> ndisc_ifinfo_sysctl_change+0x1b8/0x234 <2> proc_sys_call_handler+0xac/0x100 <2> proc_sys_write+0x3c/0x4c <2> __vfs_write+0x54/0x14c <2> vfs_write+0xcc/0x188 <2> SyS_write+0x60/0xc0 <2> el0_svc_naked+0x34/0x38 device register call stack - <2> notifier_call_chain+0x84/0xbc <2> raw_notifier_call_chain+0x38/0x48 <2> call_netdevice_notifiers_info+0x40/0x70 <2> call_netdevice_notifiers+0x38/0x60 <2> register_netdevice+0x29c/0x3d8 <2> rmnet_vnd_newlink+0x68/0xe8 <2> rmnet_newlink+0xa0/0x160 <2> rtnl_newlink+0x57c/0x6c8 <2> rtnetlink_rcv_msg+0x1dc/0x328 <2> netlink_rcv_skb+0xac/0x118 <2> rtnetlink_rcv+0x24/0x30 <2> netlink_unicast+0x158/0x1f0 <2> netlink_sendmsg+0x32c/0x338 <2> sock_sendmsg+0x44/0x60 <2> SyS_sendto+0x150/0x1ac <2> el0_svc_naked+0x34/0x38 Fixes: b752eff5be24 ("net: qualcomm: rmnet: Implement ndo_get_iflink") Signed-off-by: Sean Tranchetti <stranche@codeaurora.org> Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09tg3: extend PTP gettime function to read system clockMiroslav Lichvar1-6/+13
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl. Cc: Richard Cochran <richardcochran@gmail.com> Cc: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09ixgbe: extend PTP gettime function to read system clockMiroslav Lichvar1-10/+44
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl. Cc: Richard Cochran <richardcochran@gmail.com> Cc: Jacob Keller <jacob.e.keller@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09igb: extend PTP gettime function to read system clockMiroslav Lichvar1-10/+55
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl. Cc: Richard Cochran <richardcochran@gmail.com> Cc: Jacob Keller <jacob.e.keller@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09e1000e: extend PTP gettime function to read system clockMiroslav Lichvar3-16/+45
This adds support for the PTP_SYS_OFFSET_EXTENDED ioctl. Cc: Richard Cochran <richardcochran@gmail.com> Cc: Jacob Keller <jacob.e.keller@intel.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: add PCIe FLR support for VFHuazhong Tan2-2/+64
This patch implements the .reset_prepare and .reset_done ops from pci framework to support the VF FLR. This patch uses hclgevf_set_def_reset_request() and hclgevf_reset_event() to handle FLR, so when hdev->default_reset_request is non zero, it means there is some reset requseted by hclgevf_set_def_reset_request() need to be processed. Also get the hdev from the ae_dev because hclgevf_reset_event is called with handle being NULL. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: do VF's pci re-initialization while PF doing FLRHuazhong Tan3-8/+74
While doing PF FLR, VF's PCIe configuration space will be cleared, so the pci and vector of VF should be re-initialized in the VF's reset process while PF doing FLR. Also, this patch fixes some memory not freed problem when pci re-initialization is done during reset process. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: add PCIe FLR support for PFHuazhong Tan6-1/+100
This patch implements the .reset_prepare and .reset_done ops from pci framework to support the PF FLR. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: implement the IMP reset processing for PFHuazhong Tan3-9/+37
The current code only print the prompt message after receiving the IMP reset interrupt and does not perform the corresponding driver reset operation. This patch implements the missing IMP reset handling in the driver. 1. The driver sets the HCLGE_STATE_CMD_DISABLE to stop sending command after receiving the IMP reset interrupt. 2. The driver needs to notify the hardware to reload the IMP firmware. 3. The IMP firmware reloading makes the reset time of hardware longer, so it is necessary to extend the driver's waiting time to wait for the hardware reset to complete. 4. In hclge_check_event_cause, IMP reset event should have higher priority than other events. Also, after clearing HCLGE_STATE_CMD_DISABLE in the hclge_cmd_init(), it needs to check whether there is a pending reset, if so, just set the HCLGE_STATE_CMD_DISABLE back and return. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: stop napi polling when HNS3_NIC_STATE_DOWN is setHuazhong Tan1-6/+16
When calling napi_disable during reset down process, if NAPIF_STATE_MISSED is set, napi_complete will call __napi_schedule to do the polling again. So this patch uses HNS3_NIC_STATE_DOWN to ensure the polling is not scheduled again. Also, when napi_complete returns true, it means polling is scheduled again, it is not neccssary to enable the interrupt. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: add error handler for hclgevf_reset()Huazhong Tan1-14/+37
Since hclgevf_reset() may fail for some reasons, so it needs an error handler to deal with it. When VF reset failed, VF can only be restored by a higher level reset asserted by PF. So, it needs to reinitialize its command queue, then it can respond to higher level reset. Also, this patch adds error logging in the hclgevf_notify_client(). Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: stop handling command queue while resetting VFHuazhong Tan4-1/+35
According to hardware's description, after the reset occurs, the driver needs to re-initialize the command queue before sending and receiving any commands. Therefore, the VF's driver needs to identify the command queue needs to re-initialize with HCLGEVF_STATE_CMD_DISABLE, and does not allow sending or receiving commands before the re-initialization. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: add reset handling for VF when doing Core/Global/IMP resetHuazhong Tan2-12/+46
When a Core/Global/IMP reset occurs, the hardware sets the reset status register of all PF/VF and reports a reset interrupt to all PF/VF and firmware. When receiving the reset interrupt: 1. The firmware will wait for 100 ms before resetting the hardware and clear the reset status register of all PF when hardware reset is done. 2. The PF/VF driver needs to down the netdev within 100 ms and then wait for hardware reset to finish. 3. After firmware clearing the reset status register of all PF, the PF driver reinitializes the hardware and clear the reset status register of it's VF. 4. After PF driver clearing the reset status register of VF, the VF driver reinitializes the hardware. This patch mainly add handling for the step 4. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: add reset handling for VF when doing PF resetHuazhong Tan9-20/+146
When PF performs a function reset, the hardware will reset both PF and all the VF belong to this PF. Hence, both PF's driver and VF's driver need to perform corresponding reset operations. Before PF driver asserting function reset to hardware, it firstly set up VF's hardware reset status, and inform the VF driver with HNAE3_VF_PF_FUNC_RESET, then VF driver sets this reset type to reset_pending and shechule reset task to stop IO and waits for the hardware reset status to clear. When PF driver has reinitialized the hardware and is ready to process mailbox from VF, PF driver clears VF's hardware reset status for VF to continue its reset process. Also, this patch uses readl_poll_timeout to simplify the hardware reset status waitting. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: adjust VF's reset processHuazhong Tan7-48/+63
Currently when VF need to reset itself, it will send a cmd to PF, after receiving the VF reset requset, PF sends a cmd to inform VF to enter the reset process and send a cmd to firmware to do the actual reset for the VF, it is possible that firmware has resetted the VF, but VF has not entered the reset process, which may cause IO not stopped problem when firmware is resetting VF. This patch fixes it by adjusting the VF reset process, when VF need to reset itself, it will enter the reset process first, and it will tell the PF to send cmd to firmware to reset itself. Add member reset_pending to struct hclgevf_dev, which indicates that there is reset event need to be processed by the VF's reset task, and the VF's reset task chooses the highest-level one and clears other low-level one when it processes reset_pending. hclge_inform_reset_assert_to_vf function is unused now, but it will be used to support the PF reset with VF working, so declare it in the header file. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: hns3: add reset_hdev to reinit the hdev in VF's reset processHuazhong Tan2-54/+31
When doing reset, the reset handling function only need to reinitialize hardware, it makes sense to add a function to do that job. Also the error handling of hclgevf_init_hdev is different when it is used in reset process. This patch adds reset_hdev to reinitialize hardware when resetting. Also, this patch removes the hclgevf_dev_ongoing_full_reset because it is unused now. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: aquantia: allow rx checksum offload configurationDmitry Bogdanov5-6/+18
RX Checksum offloads could not be configured and ignored netdev features flag for checksumming. Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: aquantia: invalid checksumm offload implementationDmitry Bogdanov2-30/+41
Packets with marked invalid IP/UDP/TCP checksums were considered as good by the driver. The error was in a logic, processing offload bits in RX descriptor. Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: aquantia: fixed enable unicast on 32 macvlanIgor Russkikh1-1/+1
Fixed a condition mistake due to which macvlans unicast item number 32 was not added in the unicast filter. The consequence is that when exactly 32 macvlans are created on NIC, the last created macvlan receives no traffic because its MAC was not registered in HW. Fixes: 94b3b542303f ("net: aquantia: vlan unicast address list correct handling") Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com> Tested-by: Nikita Danilov <nikita.danilov@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-11-09net: aquantia: fix potential IOMMU fault after driver unbindDmitry Bogdanov4-0/+35
IOMMU fault may occurr on unbind/bind or if_down/if_up sequence. Although driver disables the rings on down, this is not enough. Due to internal HW design, during subsequent initialization NIC sometimes may reuse RX descriptors cache and write to the host memory from the descriptor cache. That's get catched by IOMMU on host. This patch invalidates the descriptor cache in NIC on interface down to prevent writing to the cached descriptors and to the memory pointed in those descriptors. Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com> Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>