- 22 May, 2020 40 commits
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Vadim Fedorenko authored
Merge ip{4,6}ip6_tnl_xmit functions into one universal ipxip6_tnl_xmit in preparation for adding MPLS support. Signed-off-by:Vadim Fedorenko <vfedorenko@novek.ru> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Bartosz Golaszewski says: ==================== mediatek: add support for MediaTek Ethernet MAC This series adds support for the STAR Ethernet Controller present on MediaTeK SoCs from the MT8* family. First we convert the existing DT bindings for the PERICFG controller to YAML and add a new compatible string for mt8516 variant of it. Then we add the DT bindings for the MAC. Next we do some cleanup of the mediatek ethernet drivers directory. The largest patch in the series adds the actual new driver. The rest of the patches add DT fixups for the boards already supported upstream. v1 -> v2: - add a generic helper for retrieving the net_device associated with given private data - fix several typos in commit messages - remove MTK_MAC_VERSION and don't set the driver version - use NET_IP_ALIGN instead of a magic number (2) but redefine it as it defaults to 0 on arm64 - don't manually turn the carrier off in mtk_mac_enable() - process TX cleanup in napi poll callback - configure pause in the adjust_link callback - use regmap_read_poll_timeout() instead of handcoding the polling - use devres_find() to verify that struct net_device is managed by devres in devm_register_netdev() - add a patch moving all networking devres helpers into net/devres.c - tweak the dma barriers: remove where unnecessary and add comments to the remaining barriers - don't reset internal counters when enabling the NIC - set the net_device's mtu size instead of checking the framesize in ndo_start_xmit() callback - fix a race condition in waking up the netif queue - don't emit log messages on OOM errors - use dma_set_mask_and_coherent() - use eth_hw_addr_random() - rework the receive callback so that we reuse the previous skb if unmapping fails, like we already do if skb allocation fails - rework hash table operations: add proper timeout handling and clear bits when appropriate v2 -> v3: - drop the patch adding priv_to_netdev() and store the netdev pointer in the driver private data - add an additional dma_wmb() after reseting the descriptor in mtk_mac_ring_pop_tail() - check the return value of dma_set_mask_and_coherent() - improve the DT bindings for mtk-eth-mac: make the reg property in the example use single-cell address and size, extend the description of the PERICFG phandle and document the mdio sub-node - add a patch converting the old .txt bindings for PERICFG to yaml - limit reading the DMA memory by storing the mapped addresses in the driver private structure - add a patch documenting the existing networking devres helpers v3 -> v4: - drop the devres patches: they will be sent separately - call netdev_sent_queue() & netdev_completed_queue() where appropriate - don't redefine NET_IP_ALIGN: define a private constant in the driver - fix a couple typos - only disabe/enable the MAC in suspend/resume if netif is running - drop the count field from the ring structure and instead calculate the number of used descriptors from the tail and head indicies - rework the locking used to protect the ring structures from concurrent access: use cheaper spin_lock_bh() and completely disable the internal spinlock used by regmap - rework the interrupt handling to make it more fine-grained: onle re-enable TX and RX interrupts while they're needed, process the stats updates in a workqueue, not in napi context - shrink the code responsible for unmapping and freeing skb memory - rework the barriers as advised by Arnd v4 -> v5: - rename the driver to make it less confusing with the existing mtk_eth_soc ethernet driver - unregister the mdiobus at device's detachment - open-code spin lock calls to avoid calling the _bh variants where unnecessary - limit read-modify-write operations where possible when accessing descriptor memory - use READ_ONCE/WRITE_ONCE when modifying the status and data_ptr descriptor fields ==================== Signed-off-by: -
Bartosz Golaszewski authored
Add remaining properties to the ethernet node and enable it. Signed-off-by:
Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by:
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Bartosz Golaszewski authored
Setup the pin control for the Ethernet MAC. Signed-off-by:
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Bartosz Golaszewski authored
Add the ethernet0 alias for ethernet so that u-boot can find this node and fill in the MAC address. Signed-off-by:
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Bartosz Golaszewski authored
Add the Ethernet MAC node to mt8516.dtsi. This defines parameters common to all the boards based on this SoC. Signed-off-by:
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Bartosz Golaszewski authored
This adds support for the PERICFG register range as a syscon. This will soon be used by the MediaTek Ethernet MAC driver for NIC configuration. Signed-off-by:
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Bartosz Golaszewski authored
This adds the driver for the MediaTek STAR Ethernet MAC currently used on the MT8* SoC family. For now we only support full-duplex. Signed-off-by:
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Bartosz Golaszewski authored
The Makefile formatting in the kernel tree usually doesn't use tabs, so remove them before we add a second driver. Signed-off-by:
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Bartosz Golaszewski authored
We'll soon by adding a second MediaTek Ethernet driver so modify the Kconfig prompt. Signed-off-by:
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Bartosz Golaszewski authored
This adds yaml DT bindings for the MediaTek STAR Ethernet MAC present on the mt8* family of SoCs. Signed-off-by:
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Bartosz Golaszewski authored
The PERICFG controller is present on the MT8516 SoC. Add an appropriate compatible variant. Signed-off-by:
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Bartosz Golaszewski authored
Convert the DT binding .txt file for MediaTek's peripheral configuration controller to YAML. There's one special case where the compatible has three positions. Otherwise, it's a pretty normal syscon. Signed-off-by:
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David S. Miller authored
Arthur Kiyanovski says: ==================== ENA features and cosmetic changes Diff from V1 of this patchset: Removed error prints patch This patchset includes: 1. new rx offset feature 2. reduction of the driver load time 3. multiple cosmetic changes to the code ==================== Acked-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
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Arthur Kiyanovski authored
This commit reduces the driver load time by using usec resolution instead of msec when polling for hardware state change. Also add back-off mechanism to handle cases where minimal sleep time is not enough. Signed-off-by:
Josh Triplett <josh@joshtriplett.org> Signed-off-by:
Sameeh Jubran <sameehj@amazon.com> Signed-off-by:
Arthur Kiyanovski <akiyano@amazon.com> Signed-off-by:
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Arthur Kiyanovski authored
1. Use BIT macro instead of shift operator for code clarity 2. Replace multiple flag assignments to a single assignment of multiple flags in ena_com_add_single_rx_desc() 3. Move ENA_HASH_KEY_SIZE from ena_netdev.h to ena_com.h Signed-off-by:
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Arthur Kiyanovski authored
1. Add leading and trailing spaces to several comments for better readability 2. Make tabs and spaces uniform in enum defines in ena_admin_defs.h Signed-off-by:
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Arthur Kiyanovski authored
1. Reorder sanity checks in get_comp_ctxt() to make more sense 2. Reorder variables in ena_com_fill_hash_function() and ena_calc_io_queue_size() in reverse christmas tree. 3. Move around member initializations. Signed-off-by:
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Arthur Kiyanovski authored
1. Remove unused definition of DRV_MODULE_VERSION 2. Remove {} from single line-of-code ifs 3. Remove unnecessary comments from ena_get/set_coalesce() 4. Remove unnecessary extra spaces and newlines Signed-off-by: -
Arthur Kiyanovski authored
1. Join unnecessarily broken short lines in ena_com.c ena_netdev.c 2. Fix Indentations of broken lines Signed-off-by:
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Arthur Kiyanovski authored
fix spelling and grammar mistakes in comments in ena_com.h, ena_com.c and ena_netdev.c Signed-off-by:
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Arthur Kiyanovski authored
Make all types of variables that convey the number and sizeof queues to be u32, for consistency with the API between the driver and device via ena_admin_defs.h:ena_admin_get_feat_resp.max_queue_ext fields. Current code sometimes uses int and there are multiple assignments between these variables with different types. Signed-off-by:
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Arthur Kiyanovski authored
Rename ena_update_tx/rx_rings_intr_moderation() to ena_update_tx/rx_rings_nonadaptive_intr_moderation() to distinguish between adaptive and non adaptive interrupt moderaion. Signed-off-by:
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Arthur Kiyanovski authored
Initialize prev_intr_delay_resolution with ena_dev->intr_delay_resolution unconditionally, since it is initialized with ENA_DEFAULT_INTR_DELAY_RESOLUTION in ena_probe(). This approach makes much more sense than handling errors of not initializing it. Also added unlikely to if condition. Signed-off-by:
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Arthur Kiyanovski authored
Default return value should be -EINVAL since the input in this case was unexpected. Also remove the now redundant check in the beginning of the function. Signed-off-by:
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Arthur Kiyanovski authored
Use u64 instead of unsigned long long for clarity Signed-off-by:
Shai Brandes <shaibran@amazon.com> Signed-off-by:
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Arthur Kiyanovski authored
Rename ena_com_free_desc to ena_com_free_q_entries to match the LLQ mode. In non-LLQ mode, an entry in an IO ring corresponds to a a descriptor. In LLQ mode an entry may correspond to several descriptors (per LLQ definition). Signed-off-by:
Igor Chauskin <igorch@amazon.com> Signed-off-by:
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Arthur Kiyanovski authored
Newer ENA devices can write data to rx buffers with an offset from the beginning of the buffer. This commit adds support for this feature in the driver. Signed-off-by:
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David S. Miller authored
Igor Russkikh says: ==================== net: atlantic: QoS implementation This patch series adds support for mqprio rate limiters and multi-TC: * max_rate is supported on both A1 and A2; * min_rate is supported on A2 only; This is a joint work of Mark and Dmitry. To implement this feature, a couple of rearrangements and code improvements were done, in areas of TC/ring management, allocation control, etc. One of the problems we faced is conflicting ptp functionality, which consumes a whole traffic class due to hardware limitations. Patches below have a more detailed description on how PTP and multi-TC co-exist right now. v2: * accommodated review comments (-Wmissing-prototypes and -Wunused-but-set-variable findings); * added user notification in case of conflicting multi-TC<->PTP configuration; * added automatic PTP disabling, if a conflicting configuration is detected; * removed module param, which was used for PTP disabling in v1; v1: https://patchwork.ozlabs.org/cover/1294380/ ==================== Acked-by:
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Mark Starovoytov authored
This patch fixes an inconsistency between code and spec, which was found while working on the QoS implementation. When 8TCs are used, 2 is the maximum supported number of index bits. In a 4TC mode, we do support 3, but we shouldn't really use the bytes, which are intended for the 8TC mode. Signed-off-by:
Mark Starovoytov <mstarovoitov@marvell.com> Signed-off-by:
Igor Russkikh <irusskikh@marvell.com> Signed-off-by:
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Mark Starovoytov authored
This patch adds support for mqprio min_rate limiters. A2 HW supports Weighted Strict Priority (WSP) arbitration for Tx Descriptor Queue scheduling among TCs, which can be used for min_rate shaping. Signed-off-by:
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Mark Starovoytov authored
This patch changes the order of arguments for TC weight/credit setter functions. Having the "value to be set" on the right is slightly more robust in a sense that it's more natural for the humans, so it's a bit more error-proof this way. Signed-off-by:
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Mark Starovoytov authored
This patch changes the TC-queue mapping mechanism used on A2. Configure the A2 HW in such a way that we can keep queue index mapping exactly as it was on A1. Signed-off-by:
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Mark Starovoytov authored
This patch adds support for automatic queue number downgrade. On A2: this is a must have, because only TC0/TC1 support more than 4Q. Other TCs support 4Qs maximum. Thus, on A2 we must downgrade the number of queues per TC to 4, if more than 2 TCs are requested. On A1: this allows using 8TCs even on systems with cpu count >= 8, when we have 8 queues by default. We will just automatically switch to 8TCx4Q mode in this case. Signed-off-by:
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Mark Starovoytov authored
This patch adds initial support for mqprio rate limiters (max_rate only). Atlantic HW supports Rate-Shaping for time-sensitive traffic at per Traffic Class (TC) granularity. Target rate is defined by: * nominal link rate (always 10G); * rate factor (ratio between nominal rate and max allowed). Signed-off-by:
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Mark Starovoytov authored
This patch updates TCVEC2RING to accept nic_cfg, which is needed to be able to use it from hw_atl. The name is updated to reflect the changes. Signed-off-by:
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Mark Starovoytov authored
This patch adds support for per-TC queue statistics. By default (single TC), the output is the same as it used to be, e.g.: Queue[0] InPackets: 2 Queue[0] OutPackets: 8 Queue[0] Restarts: 0 Queue[0] InJumboPackets: 0 Queue[0] InLroPackets: 0 Queue[0] InErrors: 0 If several TCs are enabled, then each queue statistics line is prefixed with TC number, e.g.: TC0 Queue[0] InPackets: 6 TC0 Queue[0] OutPackets: 11 Queue numbering is end-to-end, so: TC1 Queue[4] InPackets: 0 TC1 Queue[4] OutPackets: 22 Signed-off-by: -
Dmitry Bezrukov authored
This patch adds multi-TC support. PTP is automatically disabled when the user enables more than 2 TCs, otherwise traffic on TC2 won't quite work, because it's reserved for PTP. Signed-off-by:
Dmitry Bezrukov <dbezrukov@marvell.com> Co-developed-by:
Dmitry Bogdanov <dbogdanov@marvell.com> Signed-off-by:
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Dmitry Bezrukov authored
This patch contains the following changes: * add cfg->is_ptp (used for PTP enable/disable switch, which is described in more details below); * add cfg->tc_mode (A1 supports 2 HW modes only); * setup queue to TC mapping based on TC mode on A2; * remove hw_tx_tc_mode_get / hw_rx_tc_mode_get hw_ops. In the first generation of our hardware (A1), a whole traffic class is consumed for PTP handling in FW (FW uses it to send the ptp data and to send back timestamps). The 'is_ptp' flag introduced in this patch will be used in to automatically disable PTP when a conflicting configuration is detected, e.g. when multiple TCs are enabled. Signed-off-by:
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Dmitry Bezrukov authored
This patch moves the PTP TC initialization into a separate function. Signed-off-by:
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