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authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-25 12:22:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-25 12:22:58 -0700
commit7e062cda7d90543ac8c7700fc7c5527d0c0f22ad (patch)
tree2f1602595d9416be41cc2e88a659ba4c145734b9 /drivers/net/ipa/ipa_endpoint.h
parent5d1772b1739b085721431eef0c0400f3aff01abf (diff)
parent57d7becda9c9e612e6b00676f2eecfac3e719e88 (diff)
downloadlinux-next-7e062cda7d90543ac8c7700fc7c5527d0c0f22ad.tar.gz
linux-next-7e062cda7d90543ac8c7700fc7c5527d0c0f22ad.zip
Merge tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core ---- - Support TCPv6 segmentation offload with super-segments larger than 64k bytes using the IPv6 Jumbogram extension header (AKA BIG TCP). - Generalize skb freeing deferral to per-cpu lists, instead of per-socket lists. - Add a netdev statistic for packets dropped due to L2 address mismatch (rx_otherhost_dropped). - Continue work annotating skb drop reasons. - Accept alternative netdev names (ALT_IFNAME) in more netlink requests. - Add VLAN support for AF_PACKET SOCK_RAW GSO. - Allow receiving skb mark from the socket as a cmsg. - Enable memcg accounting for veth queues, sysctl tables and IPv6. BPF --- - Add libbpf support for User Statically-Defined Tracing (USDTs). - Speed up symbol resolution for kprobes multi-link attachments. - Support storing typed pointers to referenced and unreferenced objects in BPF maps. - Add support for BPF link iterator. - Introduce access to remote CPU map elements in BPF per-cpu map. - Allow middle-of-the-road settings for the kernel.unprivileged_bpf_disabled sysctl. - Implement basic types of dynamic pointers e.g. to allow for dynamically sized ringbuf reservations without extra memory copies. Protocols --------- - Retire port only listening_hash table, add a second bind table hashed by port and address. Avoid linear list walk when binding to very popular ports (e.g. 443). - Add bridge FDB bulk flush filtering support allowing user space to remove all FDB entries matching a condition. - Introduce accept_unsolicited_na sysctl for IPv6 to implement router-side changes for RFC9131. - Support for MPTCP path manager in user space. - Add MPTCP support for fallback to regular TCP for connections that have never connected additional subflows or transmitted out-of-sequence data (partial support for RFC8684 fallback). - Avoid races in MPTCP-level window tracking, stabilize and improve throughput. - Support lockless operation of GRE tunnels with seq numbers enabled. - WiFi support for host based BSS color collision detection. - Add support for SO_TXTIME/SCM_TXTIME on CAN sockets. - Support transmission w/o flow control in CAN ISOTP (ISO 15765-2). - Support zero-copy Tx with TLS 1.2 crypto offload (sendfile). - Allow matching on the number of VLAN tags via tc-flower. - Add tracepoint for tcp_set_ca_state(). Driver API ---------- - Improve error reporting from classifier and action offload. - Add support for listing line cards in switches (devlink). - Add helpers for reporting page pool statistics with ethtool -S. - Add support for reading clock cycles when using PTP virtual clocks, instead of having the driver convert to time before reporting. This makes it possible to report time from different vclocks. - Support configuring low-latency Tx descriptor push via ethtool. - Separate Clause 22 and Clause 45 MDIO accesses more explicitly. New hardware / drivers ---------------------- - Ethernet: - Marvell's Octeon NIC PCI Endpoint support (octeon_ep) - Sunplus SP7021 SoC (sp7021_emac) - Add support for Renesas RZ/V2M (in ravb) - Add support for MediaTek mt7986 switches (in mtk_eth_soc) - Ethernet PHYs: - ADIN1100 industrial PHYs (w/ 10BASE-T1L and SQI reporting) - TI DP83TD510 PHY - Microchip LAN8742/LAN88xx PHYs - WiFi: - Driver for pureLiFi X, XL, XC devices (plfxlc) - Driver for Silicon Labs devices (wfx) - Support for WCN6750 (in ath11k) - Support Realtek 8852ce devices (in rtw89) - Mobile: - MediaTek T700 modems (Intel 5G 5000 M.2 cards) - CAN: - ctucanfd: add support for CTU CAN FD open-source IP core from Czech Technical University in Prague Drivers ------- - Delete a number of old drivers still using virt_to_bus(). - Ethernet NICs: - intel: support TSO on tunnels MPLS - broadcom: support multi-buffer XDP - nfp: support VF rate limiting - sfc: use hardware tx timestamps for more than PTP - mlx5: multi-port eswitch support - hyper-v: add support for XDP_REDIRECT - atlantic: XDP support (including multi-buffer) - macb: improve real-time perf by deferring Tx processing to NAPI - High-speed Ethernet switches: - mlxsw: implement basic line card information querying - prestera: add support for traffic policing on ingress and egress - Embedded Ethernet switches: - lan966x: add support for packet DMA (FDMA) - lan966x: add support for PTP programmable pins - ti: cpsw_new: enable bc/mc storm prevention - Qualcomm 802.11ax WiFi (ath11k): - Wake-on-WLAN support for QCA6390 and WCN6855 - device recovery (firmware restart) support - support setting Specific Absorption Rate (SAR) for WCN6855 - read country code from SMBIOS for WCN6855/QCA6390 - enable keep-alive during WoWLAN suspend - implement remain-on-channel support - MediaTek WiFi (mt76): - support Wireless Ethernet Dispatch offloading packet movement between the Ethernet switch and WiFi interfaces - non-standard VHT MCS10-11 support - mt7921 AP mode support - mt7921 IPv6 NS offload support - Ethernet PHYs: - micrel: ksz9031/ksz9131: cabletest support - lan87xx: SQI support for T1 PHYs - lan937x: add interrupt support for link detection" * tag 'net-next-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1809 commits) ptp: ocp: Add firmware header checks ptp: ocp: fix PPS source selector debugfs reporting ptp: ocp: add .init function for sma_op vector ptp: ocp: vectorize the sma accessor functions ptp: ocp: constify selectors ptp: ocp: parameterize input/output sma selectors ptp: ocp: revise firmware display ptp: ocp: add Celestica timecard PCI ids ptp: ocp: Remove #ifdefs around PCI IDs ptp: ocp: 32-bit fixups for pci start address Revert "net/smc: fix listen processing for SMC-Rv2" ath6kl: Use cc-disable-warning to disable -Wdangling-pointer selftests/bpf: Dynptr tests bpf: Add dynptr data slices bpf: Add bpf_dynptr_read and bpf_dynptr_write bpf: Dynptr support for ring buffers bpf: Add bpf_dynptr_from_mem for local dynptrs bpf: Add verifier support for dynptrs bpf: Suppress 'passing zero to PTR_ERR' warning bpf: Introduce bpf_arch_text_invalidate for bpf_prog_pack ...
Diffstat (limited to 'drivers/net/ipa/ipa_endpoint.h')
-rw-r--r--drivers/net/ipa/ipa_endpoint.h85
1 files changed, 83 insertions, 2 deletions
diff --git a/drivers/net/ipa/ipa_endpoint.h b/drivers/net/ipa/ipa_endpoint.h
index 12fd5b16c18e..01790c60bee8 100644
--- a/drivers/net/ipa/ipa_endpoint.h
+++ b/drivers/net/ipa/ipa_endpoint.h
@@ -41,6 +41,87 @@ enum ipa_endpoint_name {
#define IPA_ENDPOINT_MAX 32 /* Max supported by driver */
/**
+ * struct ipa_endpoint_tx - Endpoint configuration for TX endpoints
+ * @seq_type: primary packet processing sequencer type
+ * @seq_rep_type: sequencer type for replication processing
+ * @status_endpoint: endpoint to which status elements are sent
+ *
+ * The @status_endpoint is only valid if the endpoint's @status_enable
+ * flag is set.
+ */
+struct ipa_endpoint_tx {
+ enum ipa_seq_type seq_type;
+ enum ipa_seq_rep_type seq_rep_type;
+ enum ipa_endpoint_name status_endpoint;
+};
+
+/**
+ * struct ipa_endpoint_rx - Endpoint configuration for RX endpoints
+ * @buffer_size: requested receive buffer size (bytes)
+ * @pad_align: power-of-2 boundary to which packet payload is aligned
+ * @aggr_time_limit: time before aggregation closes (microseconds)
+ * @aggr_hard_limit: whether aggregation closes before or after boundary
+ * @aggr_close_eof: whether aggregation closes on end-of-frame
+ * @holb_drop: whether to drop packets to avoid head-of-line blocking
+ *
+ * The actual size of the receive buffer is rounded up if necessary
+ * to be a power-of-2 number of pages.
+ *
+ * With each packet it transfers, the IPA hardware can perform certain
+ * transformations of its packet data. One of these is adding pad bytes
+ * to the end of the packet data so the result ends on a power-of-2 boundary.
+ *
+ * It is also able to aggregate multiple packets into a single receive buffer.
+ * Aggregation is "open" while a buffer is being filled, and "closes" when
+ * certain criteria are met.
+ *
+ * A time limit can be specified to close aggregation. Aggregation will be
+ * closed if this period passes after data is first written into a receive
+ * buffer. If not specified, no time limit is imposed.
+ *
+ * Insufficient space available in the receive buffer can close aggregation.
+ * The aggregation byte limit defines the point (in units of 1024 bytes) in
+ * the buffer where aggregation closes. With a "soft" aggregation limit,
+ * aggregation closes when a packet written to the buffer *crosses* that
+ * aggregation limit. With a "hard" aggregation limit, aggregation will
+ * close *before* writing a packet that would cross that boundary.
+ */
+struct ipa_endpoint_rx {
+ u32 buffer_size;
+ u32 pad_align;
+ u32 aggr_time_limit;
+ bool aggr_hard_limit;
+ bool aggr_close_eof;
+ bool holb_drop;
+};
+
+/**
+ * struct ipa_endpoint_config - IPA endpoint hardware configuration
+ * @resource_group: resource group to assign endpoint to
+ * @checksum: whether checksum offload is enabled
+ * @qmap: whether endpoint uses QMAP protocol
+ * @aggregation: whether endpoint supports aggregation
+ * @status_enable: whether endpoint uses status elements
+ * @dma_mode: whether endpoint operates in DMA mode
+ * @dma_endpoint: peer endpoint, if operating in DMA mode
+ * @tx: TX-specific endpoint information (see above)
+ * @rx: RX-specific endpoint information (see above)
+ */
+struct ipa_endpoint_config {
+ u32 resource_group;
+ bool checksum;
+ bool qmap;
+ bool aggregation;
+ bool status_enable;
+ bool dma_mode;
+ enum ipa_endpoint_name dma_endpoint;
+ union {
+ struct ipa_endpoint_tx tx;
+ struct ipa_endpoint_rx rx;
+ };
+};
+
+/**
* enum ipa_replenish_flag: RX buffer replenish flags
*
* @IPA_REPLENISH_ENABLED: Whether receive buffer replenishing is enabled
@@ -60,7 +141,7 @@ enum ipa_replenish_flag {
* @channel_id: GSI channel used by the endpoint
* @endpoint_id: IPA endpoint number
* @toward_ipa: Endpoint direction (true = TX, false = RX)
- * @data: Endpoint configuration data
+ * @config: Default endpoint configuration
* @trans_tre_max: Maximum number of TRE descriptors per transaction
* @evt_ring_id: GSI event ring used by the endpoint
* @netdev: Network device pointer, if endpoint uses one
@@ -74,7 +155,7 @@ struct ipa_endpoint {
u32 channel_id;
u32 endpoint_id;
bool toward_ipa;
- const struct ipa_endpoint_config_data *data;
+ struct ipa_endpoint_config config;
u32 trans_tre_max;
u32 evt_ring_id;