- 24 Nov, 2020 5 commits
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Christophe JAILLET authored
Memory allocation are done with 'dma_alloc_coherent()'. Be consistent and use 'dma_free_coherent()' to free the corresponding memory. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/20201121090330.1332543-1-christophe.jaillet@wanadoo.frSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Christophe JAILLET authored
'pci_set_dma_mask()' + 'pci_set_consistent_dma_mask()' can be replaced by an equivalent 'dma_set_mask_and_coherent()' which is much less verbose. Signed-off-by:
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Jakub Kicinski authored
Kurt Kanzenbach says: ==================== net: dsa: hellcreek: Minor cleanups fix two minor issues in the hellcreek driver. ==================== Link: https://lore.kernel.org/r/20201121114455.22422-1-kurt@linutronix.deSigned-off-by:
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Kurt Kanzenbach authored
When DSA is not loaded when the driver is probed an error message is printed. But, that's not really an error, just a defer. Use dev_err_probe() instead. Signed-off-by:
Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
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Kurt Kanzenbach authored
Remove unused and add needed includes. No functional change. Suggested-by:
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- 23 Nov, 2020 6 commits
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Jakub Kicinski authored
Christian Eggers says: ==================== net: ptp: introduce common defines for PTP message types This series introduces commen defines for PTP event messages. Driver internal defines are removed and some uses of magic numbers are replaced by the new defines. ==================== Link: https://lore.kernel.org/r/20201120084106.10046-1-ceggers@arri.deSigned-off-by:
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Christian Eggers authored
Remove driver internal defines for this. Masking msgtype with 0xf is already done within ptp_get_msgtype(). Signed-off-by:
Christian Eggers <ceggers@arri.de> Cc: Kurt Kanzenbach <kurt@linutronix.de> Reviewed-by:
Richard Cochran <richardcochran@gmail.com> Signed-off-by:
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Christian Eggers authored
Remove usage of magic numbers. Signed-off-by:
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Christian Eggers authored
Using PTP wide defines will obsolete different driver internal defines and uses of magic numbers. Signed-off-by:
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Jakub Kicinski authored
We're about to do reshuffling in networking headers and eliminate some implicit includes. This results in: In file included from ../net/ipv4/netfilter/arp_tables.c:26: include/net/compat.h:60:40: error: unknown type name ‘compat_uptr_t’; did you mean ‘compat_ptr_ioctl’? struct sockaddr __user **save_addr, compat_uptr_t *ptr, ^~~~~~~~~~~~~ compat_ptr_ioctl include/net/compat.h:61:4: error: unknown type name ‘compat_size_t’; did you mean ‘compat_sigset_t’? compat_size_t *len); ^~~~~~~~~~~~~ compat_sigset_t Currently net/compat.h depends on linux/compat.h being included first. After the upcoming changes this would break the 32bit build. Reviewed-by:Arnd Bergmann <arnd@arndb.de> Reviewed-by:
Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20201121214844.1488283-1-kuba@kernel.orgSigned-off-by:
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Martin Schiller authored
Call netdev notifiers before and after changing the device type. Signed-off-by:
Martin Schiller <ms@dev.tdt.de> Link: https://lore.kernel.org/r/20201118063919.29485-1-ms@dev.tdt.deSigned-off-by:
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- 22 Nov, 2020 1 commit
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George Cherian authored
Add support to choose RSS flow key algorithm with IPv4 transport protocol field included in hashing input data. This will be enabled by default. There-by enabling 3/5 tuple hash Signed-off-by:
Sunil Kovvuri Goutham <sgoutham@marvell.com> Signed-off-by:
George Cherian <george.cherian@marvell.com> Link: https://lore.kernel.org/r/20201120093906.2873616-1-george.cherian@marvell.comSigned-off-by:
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- 21 Nov, 2020 28 commits
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Jakub Kicinski authored
Merge tag 'linux-can-next-for-5.11-20201120' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2020-11-20 The first patch is by Yegor Yefremov and he improves the j1939 documentaton by adding tables for the CAN identifier and its fields. Then there are 8 patches by Oliver Hartkopp targeting the CAN driver infrastructure and drivers. These add support for optional DLC element to the Classical CAN frame structure. See patch ea780056 ("can: add optional DLC element to Classical CAN frame structure") for details. Oliver's last patch adds len8_dlc support to several drivers. Stefan Mätje provides a patch to add len8_dlc support to the esd_usb2 driver. The next patch is by Oliver Hartkopp, too and adds support for modification of Classical CAN DLCs to CAN GW sockets. The next 3 patches target the nxp,flexcan DT bindings. One patch by my adds the missing uint32 reference to the clock-frequency property. Joakim Zhang's patches fix the fsl,clk-source property and add the IMX_SC_R_CAN() macro to the imx firmware header file, which will be used in the flexcan driver later. Another patch by Joakim Zhang prepares the flexcan driver for SCU based stop-mode, by giving the existing, GPR based stop-mode, a _GPR postfix. The next 5 patches are by me, target the flexcan driver, and clean up the .ndo_open and .ndo_stop callbacks. These patches try to fix a sporadically hanging flexcan_close() during simultanious ifdown, sending of CAN messages and probably open CAN bus. I was never able to reproduce, but these seem to fix the problem at the reporting user. As these changes are rather big, I'd like to mainline them via net-next/master. The next patches are by Jimmy Assarsson and Christer Beskow, they add support for new USB devices to the existing kvaser_usb driver. The last patch is by Kaixu Xia and simplifies the return in the mcp251xfd_chip_softreset() function in the mcp251xfd driver. * tag 'linux-can-next-for-5.11-20201120' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (25 commits) can: mcp251xfd: remove useless code in mcp251xfd_chip_softreset can: kvaser_usb: Add new Kvaser hydra devices can: kvaser_usb: kvaser_usb_hydra: Add support for new device variant can: kvaser_usb: Add new Kvaser Leaf v2 devices can: kvaser_usb: Add USB_{LEAF,HYDRA}_PRODUCT_ID_END defines can: flexcan: flexcan_close(): change order if commands to properly shut down the controller can: flexcan: flexcan_open(): completely initialize controller before requesting IRQ can: flexcan: flexcan_rx_offload_setup(): factor out mailbox and rx-offload setup into separate function can: flexcan: move enabling/disabling of interrupts from flexcan_chip_{start,stop}() to callers can: flexcan: factor out enabling and disabling of interrupts into separate function can: flexcan: rename macro FLEXCAN_QUIRK_SETUP_STOP_MODE -> FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR dt-bindings: firmware: add IMX_SC_R_CAN(x) macro for CAN dt-bindings: can: fsl,flexcan: fix fsl,clk-source property dt-bindings: can: fsl,flexcan: add uint32 reference to clock-frequency property can: gw: support modification of Classical CAN DLCs can: drivers: add len8_dlc support for esd_usb2 CAN adapter can: drivers: add len8_dlc support for various CAN adapters can: drivers: introduce helpers to access Classical CAN DLC values can: update documentation for DLC usage in Classical CAN can: rename CAN FD related can_len2dlc and can_dlc2len helpers ... ==================== Link: https://lore.kernel.org/r/20201120133318.3428231-1-mkl@pengutronix.deSigned-off-by:
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Heiner Kallweit authored
Use netdev->tstats instead of a member of net_bridge for storing a pointer to the per-cpu counters. This allows us to use core functionality for statistics handling. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/9bad2be2-fd84-7c6e-912f-cee433787018@gmail.comSigned-off-by:
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Jakub Kicinski authored
Huazhong Tan says: ==================== net: hns3: misc updates for -next This series includes some misc updates for the HNS3 ethernet driver. #1 adds support for 1280 queues #2 adds mapping for BAR45 which is needed by RoCE client. #3 extend the interrupt resources. #4 add support to query firmware's calculated shaping parameters. ==================== Link: https://lore.kernel.org/r/1605863783-36995-1-git-send-email-tanhuazhong@huawei.comSigned-off-by:
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Yonglong Liu authored
Adds debugfs to dump new shaping parameters: rate and flag. Signed-off-by:
Yonglong Liu <liuyonglong@huawei.com> Signed-off-by:
Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by:
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Yonglong Liu authored
Since the calculation of the driver is fixed, if the number of queue or clock changed, the calculated result may be inaccurate. So for compatible and maintainable, add a new flag to tell the firmware to calculate the shaping parameters with the specified rate. Signed-off-by:
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Yufeng Mo authored
For HNAE3_DEVICE_VERSION_V3, a maximum of 1281 interrupt resources are supported. To utilize these new resources, extend the corresponding field or variable to 16bit type, and remove the restriction of NIC client that only use a maximum of 65 interrupt vectors. In addition, the I/O address of the extended interrupt resources are different, so an extra handler is needed. Currently, the total number of interrupts is the sum of RoCE's number and RoCE's offset (RoCE is in front of NIC), since the number of both NIC and RoCE are same. For readability, rewrite the corresponding field of the command, rename the RoCE's offset field as the number of NIC interrupts, then the total number of interrupts is sum of the number of RoCE and NIC, and replace vport->back with hdev in hclge_init_roce_base_info() for simplifying the code. Signed-off-by:
Yufeng Mo <moyufeng@huawei.com> Signed-off-by:
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Huazhong Tan authored
For device who has device memory accessed through the PCI BAR4, IO descriptor push of NIC and direct WQE(Work Queue Element) of RoCE will use this device memory, so add support for mapping this device memory, and add this info to the RoCE client whose new feature needs. Signed-off-by:
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Yonglong Liu authored
For DEVICE_VERSION_V1/2, there are total 1024 queues and queue sets. For DEVICE_VERSION_V3, it increases to 1280, and can be assigned to one pf， so remove the limitation of 1024. To keep compatible with DEVICE_VERSION_V1/2 and old driver version, the queue number is split into two part: tqp_num(range 0~1023) and ext_tqp_num(range 1024~1279). Signed-off-by:
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Jakub Kicinski authored
Thomas Falcon says: ==================== ibmvnic: Performance improvements and other updates The first three patches utilize a hypervisor call allowing multiple TX and RX buffer replenishment descriptors to be sent in one operation, which significantly reduces hypervisor call overhead. The xmit_more and Byte Queue Limit API's are leveraged to provide this support for TX descriptors. The subsequent two patches remove superfluous code and members in TX completion handling function and TX buffer structure, respectively, and remove unused routines. Finally, four patches which ensure that device queue memory is cache-line aligned, resolving slowdowns observed in PCI traces, as well as optimize the driver's NAPI polling function and to RX buffer replenishment are provided by Dwip Banerjee. This series provides significant performance improvements, allowing the driver to fully utilize 100Gb NIC's. ==================== Link: https://lore.kernel.org/r/1605748345-32062-1-git-send-email-tlfalcon@linux.ibm.comSigned-off-by:
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Dwip N. Banerjee authored
Reduce the amount of time spent replenishing RX buffers by only doing so once available buffers has fallen under a certain threshold, in this case half of the total number of buffers, or if the polling loop exits before the packets processed is less than its budget. Non-exhaustion of NAPI budget implies lower incoming packet pressure, allowing the leeway to refill the buffers in preparation for any impending burst. Signed-off-by:
Dwip N. Banerjee <dnbanerg@us.ibm.com> Signed-off-by:
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Dwip N. Banerjee authored
Take advantage of the additional optimizations in netdev_alloc_skb when allocating socket buffers to be used for packet reception. Signed-off-by:
Lijun Pan <ljp@linux.ibm.com> Signed-off-by:
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Dwip N. Banerjee authored
If the current NAPI polling loop exits without completing it's budget, only re-enable interrupts if there are no entries remaining in the queue and napi_complete_done is successful. If there are entries remaining on the queue that were missed, restart the polling loop. Signed-off-by:
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Dwip N. Banerjee authored
PCI bus slowdowns were observed on IBM VNIC devices as a result of partial cache line writes and non-cache aligned full cache line writes. Ensure that packet data buffers are cache-line aligned to avoid these slowdowns. Signed-off-by:
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Thomas Falcon authored
It is not longer used, so remove it. Signed-off-by:
Thomas Falcon <tlfalcon@linux.ibm.com> Acked-by:
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Thomas Falcon authored
Remove unused and superfluous code and members in existing TX implementation and data structures. Signed-off-by:
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Thomas Falcon authored
Include support for the xmit_more feature utilizing the H_SEND_SUB_CRQ_INDIRECT hypervisor call which allows the sending of multiple subordinate Command Response Queue descriptors in one hypervisor call via a DMA-mapped buffer. This update reduces hypervisor calls and thus hypervisor call overhead per TX descriptor. Signed-off-by:
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Thomas Falcon authored
Utilize the H_SEND_SUB_CRQ_INDIRECT hypervisor call to send multiple RX buffer descriptors to the device in one hypervisor call operation. This change will reduce the number of hypervisor calls and thus hypervisor call overhead needed to transmit RX buffer descriptors to the device. Signed-off-by:
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Thomas Falcon authored
This patch introduces the infrastructure to send batched subordinate Command Response Queue descriptors, which are used by the ibmvnic driver to send TX frame and RX buffer descriptors. Signed-off-by:
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Jakub Kicinski authored
Alex Elder says: ==================== net: ipa: add a driver shutdown callback The final patch in this series adds a driver shutdown callback for the IPA driver. The patches leading up to that address some issues encountered while ensuring that callback worked as expected: - The first just reports a little more information when channels or event rings are in unexpected states - The second patch recognizes a condition where an as-yet-unused channel does not require a reset during teardown - The third patch explicitly ignores a certain error condition, because it can't be avoided, and is harmless if it occurs - The fourth properly handles requests to retry a channel HALT request - The fifth makes a second attempt to stop modem activity during shutdown if it's busy The shutdown callback is implemented by calling the existing remove callback function (reporting if that returns an error). ==================== Link: https://lore.kernel.org/r/20201119224929.23819-1-elder@linaro.orgSigned-off-by: -
Alex Elder authored
A system shutdown can happen at essentially any time, and it's possible that the IPA driver is busy when a shutdown is underway. IPA hardware accesses IMEM and SMEM memory regions using an IOMMU, and at some point during shutdown, needed I/O mappings could become invalid. This could be disastrous for any "in flight" IPA activity. Avoid this by defining a new driver shutdown callback that stops all IPA activity and cleanly shuts down the driver. It merely calls the driver's existing remove callback, reporting the error if it returns one. Signed-off-by:
Alex Elder <elder@linaro.org> Signed-off-by:
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Alex Elder authored
The IPA driver remove callback, ipa_remove(), calls ipa_modem_stop() if the setup stage of initialization is complete. If a concurrent call to ipa_modem_start() or ipa_modem_stop() has begin but not completed, ipa_modem_stop() can return an error (-EBUSY). The next patch adds a driver shutdown callback, which will simply call ipa_remove(). We really want our shutdown callback to clean things up. So add a single retry to the ipa_modem_stop() call in ipa_remove() after a short (millisecond) delay. This offers no guarantee the shutdown will complete successfully, but we'll at least try a little harder before giving up. Signed-off-by:
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Alex Elder authored
When stopping an AP RX channel, there can be a transient period while the channel enters STOP_IN_PROC state before reaching the final STOPPED state. In that case we make another attempt to stop the channel. Similarly, when stopping a modem channel (using a GSI generic command issued from the AP), it's possible that multiple attempts will be required before the channel reaches STOPPED state. Add a field to the GSI structure to record an errno representing the result code provided when a generic command completes. If the result learned in gsi_isr_gp_int1() is RETRY, record -EAGAIN in the result code, otherwise record 0 for success, or -EIO for any other result. If we time out nf gsi_generic_command() waiting for the command to complete, return -ETIMEDOUT (as before). Otherwise return the result stashed by gsi_isr_gp_int1(). Add a loop in gsi_modem_channel_halt() to reissue the HALT command if the result code indicates -EAGAIN. Limit this to 10 retries (after the initial attempt). Signed-off-by:
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Alex Elder authored
IPA v4.2 has a hardware quirk that requires the AP to allocate GSI channels for the modem to use. It is recommended that these modem channels get stopped (with a HALT generic command) by the AP when its IPA driver gets removed. The AP has no way of knowing the current state of a modem channel. So when the IPA driver issues a HALT command it's possible the channel is not running, and in that case we get an error indication. This error simply means we didn't need to stop the channel, so we can ignore it. This patch adds an explanation for this situation, and arranges for this condition to *not* report an error message. Signed-off-by:
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Alex Elder authored
If the rmnet_ipa0 network device has not been opened at the time we remove or shut down the IPA driver, its underlying TX and RX GSI channels will not have been started, and they will still be in ALLOCATED state. The RESET command on a channel is meant to return a channel to ALLOCATED state after it's been stopped. But if it was never started, its state will still be ALLOCATED, the RESET command is not required. Quietly skip doing the reset without printing an error message if a channel is already in ALLOCATED state when we request it be reset. Signed-off-by:
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Alex Elder authored
When a GSI command is used to change the state of a channel or event ring we check the state before and after the command to ensure it is as expected. If not, we print an error message, but it does not include the channel or event ring id, and it easily can. Add the channel or event ring id to these error messages. Signed-off-by:
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Jakub Kicinski authored
Alex Elder says: ==================== net: ipa: platform-specific clock and interconnect rates This series changes the way the IPA core clock rate and the bandwidth parameters for interconnects are specified. Previously these were specified with hard-wired constants, with the same values used for the SDM845 and SC7180 platforms. Now these parameters are recorded in platform-specific configuration data. For the SC7180 this means we use an all-new core clock rate and interconnect parameters. Additionally, while developing this I learned that the average bandwidth setting for two of the interconnects is ignored (on both platforms). Zero is now used explicitly as that unused bandwidth value. This means the SDM845 bandwidth settings are also changed by this series. ==================== Link: https://lore.kernel.org/r/20201119224041.16066-1-elder@linaro.orgSigned-off-by:
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Alex Elder authored
Stop assuming a fixed IPA core clock rate and interconnect bandwidths. Use the configuration data defined for these things instead. Get rid of the previously-used constants. Signed-off-by:
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Alex Elder authored
Populate the core clock rate and interconnect average and peak bandwidth data for SDM845 and SC7180 in their configuration data files. At this point we still don't *use* this data. Note that SC7180 actually defines a new core clock rate (100 MHz instead of 75 MHz) and new interconnect bandwidth values. They will be activated in the next commit, which uses the configured values rather than the fixed constants. Signed-off-by:
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