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path: root/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
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2022-04-13bnxt_en: Eliminate unintended link toggle during FW resetMichael Chan1-3/+1
[ Upstream commit 7c492a2530c1f05441da541307c2534230dfd59b ] If the flow control settings have been changed, a subsequent FW reset may cause the ethernet link to toggle unnecessarily. This link toggle will increase the down time by a few seconds. The problem is caused by bnxt_update_phy_setting() detecting a false mismatch in the flow control settings between the stored software settings and the current FW settings after the FW reset. This mismatch is caused by the AUTONEG bit added to link_info->req_flow_ctrl in an inconsistent way in bnxt_set_pauseparam() in autoneg mode. The AUTONEG bit should not be added to link_info->req_flow_ctrl. Reviewed-by: Colin Winegarden <colin.winegarden@broadcom.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-03-08bnxt_en: Fix occasional ethtool -t loopback test failuresMichael Chan1-1/+1
[ Upstream commit cfcab3b3b61584a02bb523ffa99564eafa761dfe ] In the current code, we setup the port to PHY or MAC loopback mode and then transmit a test broadcast packet for the loopback test. This scheme fails sometime if the port is shared with management firmware that can also send packets. The driver may receive the management firmware's packet and the test will fail when the contents don't match the test packet. Change the test packet to use it's own MAC address as the destination and setup the port to only receive it's own MAC address. This should filter out other packets sent by management firmware. Fixes: 91725d89b97a ("bnxt_en: Add PHY loopback to ethtool self-test.") Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Reviewed-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-03-02bnxt_en: Fix offline ethtool selftest with RDMA enabledMichael Chan1-3/+9
commit 6758f937669dba14c6aac7ca004edda42ec1b18d upstream. For offline (destructive) self tests, we need to stop the RDMA driver first. Otherwise, the RDMA driver will run into unrecoverable errors when destructive firmware tests are being performed. The irq_re_init parameter used in the half close and half open sequence when preparing the NIC for offline tests should be set to true because the RDMA driver will free all IRQs before the offline tests begin. Fixes: 55fd0cf320c3 ("bnxt_en: Add external loopback test to ethtool selftest.") Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Reviewed-by: Ben Li <ben.li@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-02bnxt_en: Fix active FEC reporting to ethtoolSomnath Kotur1-0/+3
commit 84d3c83e6ea7d46cf3de3a54578af73eb24a64f2 upstream. ethtool --show-fec <interface> does not show anything when the Active FEC setting in the chip is set to None. Fix it to properly return ETHTOOL_FEC_OFF in that case. Fixes: 8b2775890ad8 ("bnxt_en: Report FEC settings to ethtool.") Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-01-27bnxt_en: use firmware provided max timeout for messagesEdwin Peer1-6/+3
[ Upstream commit bce9a0b7900836df223ab638090df0cb8430d9e8 ] Some older devices cannot accommodate the 40 seconds timeout cap for long running commands (such as NVRAM commands) due to hardware limitations. Allow these devices to request more time for these long running commands, but print a warning, since the longer timeout may cause the hung task watchdog to trigger. In the case of a firmware update operation, this is preferable to failing outright. v2: Use bp->hwrm_cmd_max_timeout directly without the constants. Fixes: 881d8353b05e ("bnxt_en: Add an upper bound for all firmware command timeouts.") Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27bnxt_en: move coredump functions into dedicated fileEdwin Peer1-356/+0
[ Upstream commit b032228e58ea2477955058ad4d70a636ce1dec51 ] Change bnxt_get_coredump() and bnxt_get_coredump_length() to non-static functions. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-01-27bnxt_en: Refactor coredump functionsEdwin Peer1-17/+31
[ Upstream commit 9a575c8c25ae2372112db6d6b3e553cd90e9f02b ] The coredump functionality will be used by devlink health. Refactor these functions that get coredump and coredump length. There is no functional change, but the following checkpatch warnings were addressed: - strscpy is preferred over strlcpy. - sscanf results should be checked, with an additional warning. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-09-20bnxt_en: Fix TX timeout when TX ring size is set to the smallestMichael Chan1-1/+1
The smallest TX ring size we support must fit a TX SKB with MAX_SKB_FRAGS + 1. Because the first TX BD for a packet is always a long TX BD, we need an extra TX BD to fit this packet. Define BNXT_MIN_TX_DESC_CNT with this value to make this more clear. The current code uses a minimum that is off by 1. Fix it using this constant. The tx_wake_thresh to determine when to wake up the TX queue is half the ring size but we must have at least BNXT_MIN_TX_DESC_CNT for the next packet which may have maximum fragments. So the comparison of the available TX BDs with tx_wake_thresh should be >= instead of > in the current code. Otherwise, at the smallest ring size, we will never wake up the TX queue and will cause TX timeout. Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.") Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadocm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-30bnxt_en: update all firmware calls to use the new APIsEdwin Peer1-244/+303
The conversion follows this general pattern for most of the calls: 1. The input message is changed from a stack variable initialized using bnxt_hwrm_cmd_hdr_init() to a pointer allocated and intialized using hwrm_req_init(). 2. If we don't need to read the firmware response, the hwrm_send_message() call is replaced with hwrm_req_send(). 3. If we need to read the firmware response, the mutex lock is replaced by hwrm_req_hold() to hold the response. When the response is read, the mutex unlock is replaced by hwrm_req_drop(). If additional DMA buffers are needed for firmware response data, the hwrm_req_dma_slice() is used instead of calling dma_alloc_coherent(). Some minor refactoring is also done while doing these conversions. v2: Fix unintialized variable warnings in __bnxt_hwrm_get_tx_rings() and bnxt_approve_mac() Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-30bnxt_en: move HWRM API implementation into separate fileEdwin Peer1-0/+1
Move all firmware messaging functions and definitions to new bnxt_hwrm.[ch]. The follow-on patches will make major modifications to these APIs. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-28bnxt: count packets discarded because of netpollJakub Kicinski1-0/+4
bnxt may discard packets if Rx completions are consumed in an attempt to let netpoll make progress. It should be extremely rare in practice but nonetheless such events should be counted. Since completion ring memory is allocated dynamically use a similar scheme to what is done for HW stats to save them. Report the stats in rx_dropped and per-netdev ethtool counter. Chances that users care which ring dropped are very low. v3: only save the stat to rx_dropped on reset, rx_total_netpoll_discards will now only show drops since last reset, similar to other "total_discard" counters. Reviewed-by: Michael Chan <michael.chan@broadcom.com> Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-24ethtool: extend coalesce setting uAPI with CQE modeYufeng Mo1-2/+6
In order to support more coalesce parameters through netlink, add two new parameter kernel_coal and extack for .set_coalesce and .get_coalesce, then some extra info can return to user with the netlink API. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-23net: broadcom: switch from 'pci_' to 'dma_' APIChristophe JAILLET1-2/+2
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below. It has been compile tested. @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-03bnxt_en: Increase maximum RX ring size if jumbo ring is not usedMichael Chan1-2/+7
The current maximum RX ring size is defined assuming the RX jumbo ring (aka aggregation ring) is used. The RX jumbo ring is automicatically used when the MTU exceeds a threshold or when rx-gro-hw/lro is enabled. The RX jumbo ring is automatically sized up to 4 times the size of the RX ring size. The BNXT_MAX_RX_DESC_CNT constant is the upper limit on the size of the RX ring whether or not the RX jumbo ring is used. Obviously, the maximum amount of RX buffer space is significantly less when the RX jumbo ring is not used. To increase flexibility for the user who does not use the RX jumbo ring, we now define a bigger maximum RX ring size when the RX jumbo ring is not used. The maximum RX ring size is now up to 8K when the RX jumbo ring is not used. The maximum completion ring size also needs to be scaled up to accomodate the larger maximum RX ring size. Note that when the RX jumbo ring is re-enabled, the RX ring size will automatically drop if it exceeds the maximum. Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-06-28bnxt_en: Add PTP clock APIs, ioctls, and ethtool methodsMichael Chan1-0/+34
Add the clock APIs to set/get/adjust the hw clock, and the related ioctls and ethtool methods. v2: Propagate error code from ptp_clock_register(). Add spinlock to serialize access to the timecounter. The timecounter is accessed in process context and the RX datapath. Read the PHC using direct registers. Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-26bnxt_en: Add a new phy_flags field to the main driver structure.Michael Chan1-4/+4
Copy the phy related feature flags from the firmware call HWRM_PORT_PHY_QCAPS to this new field. We can also remove the flags field in the bnxt_test_info structure. It's cleaner to have all PHY related flags in one location, directly copied from the firmware. To keep the BNXT_PHY_CFG_ABLE() macro logic the same, we need to make a slight adjustment to check that it is a PF. Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-20bnxt: add more ethtool standard statsJakub Kicinski1-0/+6
Michael suggest a few more stats we can expose. $ ethtool -S eth0 --groups eth-mac Standard stats for eth0: eth-mac-FramesTransmittedOK: 902623288966 eth-mac-FramesReceivedOK: 28727667047 eth-mac-FrameCheckSequenceErrors: 1 eth-mac-AlignmentErrors: 0 eth-mac-OutOfRangeLengthField: 0 $ ethtool -S eth0 | grep '\(fcs\|align\|oor\)' rx_fcs_err_frames: 1 rx_align_err_frames: 0 tx_fcs_err_frames: 0 Suggested-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-17bnxt: implement ethtool standard statsJakub Kicinski1-0/+125
Most of the names seem to strongly correlate with names from the standard and RFC. Whether ..+good_frames are indeed Frames..OK I'm the least sure of. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-16bnxt: implement ethtool::get_fec_statsJakub Kicinski1-0/+15
Report corrected bits. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-01-13bnxt_en: Clear DEFRAG flag in firmware message when retry flashing.Pavan Chebbi1-1/+2
When the FW tells the driver to retry the INSTALL_UPDATE command after it has cleared the NVM area, the driver is not clearing the previously used ALLOWED_TO_DEFRAG flag. As a result the FW tries to defrag the NVM area a second time in a loop and can fail the request. Fixes: 1432c3f6a6ca ("bnxt_en: Retry installing FW package under NO_SPACE error condition.") Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-15bnxt_en: Enable batch mode when using HWRM_NVM_MODIFY to flash packages.Michael Chan1-9/+40
The current scheme allocates a DMA buffer as big as the requested firmware package file and DMAs the contents to firmware in one operation. The buffer size can be several hundred kilo bytes and the driver may not be able to allocate the memory. This will cause firmware upgrade to fail. Improve the scheme by using smaller DMA blocks and calling firmware to DMA each block in a batch mode. Older firmware can cause excessive NVRAM erases if the block size is too small so we try to allocate a 256K buffer to begin with and size it down successively if we cannot allocate the memory. Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-15bnxt_en: Retry installing FW package under NO_SPACE error condition.Pavan Chebbi1-5/+32
In bnxt_flash_package_from_fw_obj(), if firmware returns the NO_SPACE error, call __bnxt_flash_nvram() to create the UPDATE directory and then loop back and retry one more time. Since the first try may fail, we use the silent version to send the firmware commands. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-15bnxt_en: Restructure bnxt_flash_package_from_fw_obj() to execute in a loop.Pavan Chebbi1-32/+28
On NICs with a smaller NVRAM, FW installation may fail after multiple updates due to fragmentation. The driver can retry when FW returns a special error code. To faciliate the retry, we restructure the logic that performs the flashing in a loop. The actual retry logic will be added in the next patch. Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-15bnxt_en: Rearrange the logic in bnxt_flash_package_from_fw_obj().Michael Chan1-33/+30
This function will be modified in the next patch to retry flashing the firmware in a loop. To facilate that, we rearrange the code so that the steps that only need to be done once before the loop will be moved to the top of the function. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-15bnxt_en: Refactor bnxt_flash_nvram.Pavan Chebbi1-19/+32
Refactor bnxt_flash_nvram() into __bnxt_flash_nvram() that takes an additional dir_item_len parameter. The new function will be used in subsequent patches with the dir_item_len parameter set to create the UPDATE directory during flashing. Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-20devlink: move request_firmware out of driverJacob Keller1-11/+22
All drivers which implement the devlink flash update support, with the exception of netdevsim, use either request_firmware or request_firmware_direct to locate the firmware file. Rather than having each driver do this separately as part of its .flash_update implementation, perform the request_firmware within net/core/devlink.c Replace the file_name parameter in the struct devlink_flash_update_params with a pointer to the fw object. Use request_firmware rather than request_firmware_direct. Although most Linux distributions today do not have the fallback mechanism implemented, only about half the drivers used the _direct request, as compared to the generic request_firmware. In the event that a distribution does support the fallback mechanism, the devlink flash update ought to be able to use it to provide the firmware contents. For distributions which do not support the fallback userspace mechanism, there should be essentially no difference between request_firmware and request_firmware_direct. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Shannon Nelson <snelson@pensando.io> Acked-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-17bnxt_en: Avoid unnecessary NVM_GET_DEV_INFO cmd error log on VFs.Vasundhara Volam1-0/+3
VFs do not have access permissions to issue NVM_GET_DEV_INFO firmware command. Fixes: 4933f6753b50 ("bnxt_en: Add bnxt_hwrm_nvm_get_dev_info() to query NVM info.") Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-17bnxt_en: read EEPROM A2h address using page 0Edwin Peer1-1/+1
The module eeprom address range returned by bnxt_get_module_eeprom() should be 256 bytes of A0h address space, the lower half of the A2h address space, and page 0 for the upper half of the A2h address space. Fix the firmware call by passing page_number 0 for the A2h slave address space. Fixes: 42ee18fe4ca2 ("bnxt_en: Add Support for ETHTOOL_GMODULEINFO and ETHTOOL_GMODULEEEPRO") Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-13bnxt_en: Add bnxt_hwrm_nvm_get_dev_info() to query NVM info.Vasundhara Volam1-0/+16
Add a new bnxt_hwrm_nvm_get_dev_info() to query firmware version information via NVM_GET_DEV_INFO firmware command. Use it to get the running version of the NVM configuration information. This new function will also be used in subsequent patches to get the stored firmware versions. Reviewed-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/1602493854-29283-8-git-send-email-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-13bnxt_en: Enable online self tests for multi-host/NPAR mode.Vasundhara Volam1-4/+4
Online self tests are not disruptive and can be run in NPAR mode and in multi-host NIC as well. Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Link: https://lore.kernel.org/r/1602493854-29283-3-git-send-email-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-05bnxt_en: Add a software counter for RX ring reset.Michael Chan1-0/+1
Add a per ring rx_resets counter to count these RX resets. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27bnxt_en: Improve preset max value for ethtool -l.Michael Chan1-2/+7
The current logic that calculates the preset maximum value for combined channel does not take into account the rings used for XDP and mqprio TCs. Each of these features will reduce the number of TX rings. Add the logic to divide the TX rings accordingly based on whether the device is currently in XDP mode and whether TCs are in use. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27bnxt_en: Implement ethtool set_fec_param() method.Michael Chan1-0/+62
This feature allows the user to set the different FEC modes on the NIC port. Any new setting will take effect immediately after a link toggle. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27bnxt_en: Report FEC settings to ethtool.Michael Chan1-0/+89
Implement .get_fecparam() method to report the configured and active FEC settings. Also report the supported and advertised FEC settings to the .get_link_ksettings() method. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27bnxt_en: avoid link reset if speed is not changedEdwin Peer1-1/+9
PORT_PHY_CONFIG is always sent with REQ_FLAGS_RESET_PHY set. This flag must be set in order for the firmware to institute the requested PHY change immediately, but it results in a link flap. This is unnecessary and results in an improved user experience if the PHY reconfiguration is avoided when the user requested speed does not constitute a change. Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27bnxt_en: ethtool: support PAM4 link speeds up to 200GEdwin Peer1-8/+63
Add ethtool PAM4 link modes for: 50000baseCR_Full 100000baseCR2_Full 200000baseCR4_Full Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27bnxt_en: refactor bnxt_get_fw_speed()Edwin Peer1-23/+24
It will be necessary to update more than one field in the link_info structure when PAM4 speeds are added in a later patch. Instead of merely translating ethtool speed values to firmware speed values, change the responsiblity of this function to update all the necessary link_info fields required to force the speed change to the desired ethtool value. This also reduces code duplication somewhat at the two call sites, which otherwise both have to independently update link_info fields to turn off auto negotiation advertisements. Also use the appropriate REQ_FORCE_LINK_SPEED definitions. These happen to have the same values, but req_link_speed is utilimately passed as force_link_speed in HWRM_PORT_PHY_CFG which is not defined in terms of REQ_AUTO_LINK_SPEED. Reviewed-by: Scott Branden <scott.branden@broadcom.com> Signed-off-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27bnxt_en: Update firmware interface spec to 1.10.1.65.Michael Chan1-3/+7
The main changes include FEC, ECN statistics, HWRM_PORT_PHY_QCFG response size reduction, and a new counter added to ctx_hw_stats_ext struct to support the new 58818 chip. The ctx_hw_stats_ext structure is now the superset supporting the new 58818 chips and the prior P5 chips. Add a new flag to identify the new chip and use constants for the chip specific ring statistics sizes instead of the size of the structure. Because the HWRM_PORT_PHY_QCFG response structure size has shrunk back to 96 bytes, the workaround added earlier to limit the size of this message for forwarding to the VF can be removed. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller1-11/+23
Two minor conflicts: 1) net/ipv4/route.c, adding a new local variable while moving another local variable and removing it's initial assignment. 2) drivers/net/dsa/microchip/ksz9477.c, overlapping changes. One pretty prints the port mode differently, whilst another changes the driver to try and obtain the port mode from the port node rather than the switch node. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-21bnxt_en: Return -EOPNOTSUPP for ETHTOOL_GREGS on VFs.Vasundhara Volam1-0/+3
Debug firmware commands are not supported on VFs to read registers. This patch avoids logging unnecessary access_denied error on VFs when user calls ETHTOOL_GREGS. By returning error in get_regs_len() method on the VF, the get_regs() method will not be called. Fixes: b5d600b027eb ("bnxt_en: Add support for 'ethtool -d'") Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-21bnxt_en: Protect bnxt_set_eee() and bnxt_set_pauseparam() with mutex.Michael Chan1-11/+20
All changes related to bp->link_info require the protection of the link_lock mutex. It's not sufficient to rely just on RTNL. Fixes: 163e9ef63641 ("bnxt_en: Fix race when modifying pause settings.") Reviewed-by: Edwin Peer <edwin.peer@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-15bnxt: add pause frame statsJakub Kicinski1-0/+17
These stats are already reported in ethtool -S. Michael confirms they are equivalent to standard stats. v2: - fix sparse warning about endian by using the macro - use u64 for pointer type Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Saeed Mahameed <saeedm@nvidia.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds1-10/+6
Pull networking fixes from David Miller: 1) Use netif_rx_ni() when necessary in batman-adv stack, from Jussi Kivilinna. 2) Fix loss of RTT samples in rxrpc, from David Howells. 3) Memory leak in hns_nic_dev_probe(), from Dignhao Liu. 4) ravb module cannot be unloaded, fix from Yuusuke Ashizuka. 5) We disable BH for too lokng in sctp_get_port_local(), add a cond_resched() here as well, from Xin Long. 6) Fix memory leak in st95hf_in_send_cmd, from Dinghao Liu. 7) Out of bound access in bpf_raw_tp_link_fill_link_info(), from Yonghong Song. 8) Missing of_node_put() in mt7530 DSA driver, from Sumera Priyadarsini. 9) Fix crash in bnxt_fw_reset_task(), from Michael Chan. 10) Fix geneve tunnel checksumming bug in hns3, from Yi Li. 11) Memory leak in rxkad_verify_response, from Dinghao Liu. 12) In tipc, don't use smp_processor_id() in preemptible context. From Tuong Lien. 13) Fix signedness issue in mlx4 memory allocation, from Shung-Hsi Yu. 14) Missing clk_disable_prepare() in gemini driver, from Dan Carpenter. 15) Fix ABI mismatch between driver and firmware in nfp, from Louis Peens. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (110 commits) net/smc: fix sock refcounting in case of termination net/smc: reset sndbuf_desc if freed net/smc: set rx_off for SMCR explicitly net/smc: fix toleration of fake add_link messages tg3: Fix soft lockup when tg3_reset_task() fails. doc: net: dsa: Fix typo in config code sample net: dp83867: Fix WoL SecureOn password nfp: flower: fix ABI mismatch between driver and firmware tipc: fix shutdown() of connectionless socket ipv6: Fix sysctl max for fib_multipath_hash_policy drivers/net/wan/hdlc: Change the default of hard_header_len to 0 net: gemini: Fix another missing clk_disable_unprepare() in probe net: bcmgenet: fix mask check in bcmgenet_validate_flow() amd-xgbe: Add support for new port mode net: usb: dm9601: Add USB ID of Keenetic Plus DSL vhost: fix typo in error message net: ethernet: mlx4: Fix memory allocation in mlx4_buddy_init() pktgen: fix error message with wrong function name net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode cxgb4: fix thermal zone device registration ...
2020-08-26bnxt_en: Fix ethtool -S statitics with XDP or TCs enabled.Michael Chan1-9/+2
We are returning the wrong count for ETH_SS_STATS in get_sset_count() when XDP or TCs are enabled. In a recent commit, we got rid of irrelevant counters when the ring is RX only or TX only, but we did not make the proper adjustments for the count. As a result, when we have XDP or TCs enabled, we are returning an excess count because some of the rings are TX only. This causes ethtool -S to display extra counters with no counter names. Fix bnxt_get_num_ring_stats() by not assuming that all rings will always have RX and TX counters in combined mode. Fixes: 125592fbf467 ("bnxt_en: show only relevant ethtool stats for a TX or RX ring") Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-26bnxt_en: Check for zero dir entries in NVRAM.Vasundhara Volam1-0/+3
If firmware goes into unstable state, HWRM_NVM_GET_DIR_INFO firmware command may return zero dir entries. Return error in such case to avoid zero length dma buffer request. Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.") Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-26bnxt_en: Don't query FW when netif_running() is false.Pavan Chebbi1-1/+1
In rare conditions like two stage OS installation, the ethtool's get_channels function may be called when the device is in D3 state, leading to uncorrectable PCI error. Check netif_running() first before making any query to FW which involves writing to BAR. Fixes: db4723b3cd2d ("bnxt_en: Check max_tx_scheduler_inputs value from firmware.") Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-24treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva1-2/+2
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-07-27bnxt_en: Add support for 'ethtool -d'Vasundhara Volam1-0/+55
Add support to dump PXP registers and PCIe statistics. Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27bnxt_en: Switch over to use the 64-bit software accumulated counters.Michael Chan1-22/+19
Now we can report all the full 64-bit CPU endian software accumulated counters instead of the hw counters, some of which may be less than 64-bit wide. Define the necessary macros to access the software counters. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-27bnxt_en: Refactor statistics code and structures.Michael Chan1-6/+7
The driver manages multiple statistics structures of different sizes. They are all allocated, freed, and handled practically the same. Define a new bnxt_stats_mem structure and common allocation and free functions for all staistics memory blocks. Reviewed-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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