From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/scsi/csiostor/csio_scsi.h | 352 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 352 insertions(+) create mode 100644 drivers/scsi/csiostor/csio_scsi.h (limited to 'drivers/scsi/csiostor/csio_scsi.h') diff --git a/drivers/scsi/csiostor/csio_scsi.h b/drivers/scsi/csiostor/csio_scsi.h new file mode 100644 index 000000000..39dda3c88 --- /dev/null +++ b/drivers/scsi/csiostor/csio_scsi.h @@ -0,0 +1,352 @@ +/* + * This file is part of the Chelsio FCoE driver for Linux. + * + * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#ifndef __CSIO_SCSI_H__ +#define __CSIO_SCSI_H__ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "csio_defs.h" +#include "csio_wr.h" + +extern struct scsi_host_template csio_fcoe_shost_template; +extern struct scsi_host_template csio_fcoe_shost_vport_template; + +extern int csio_scsi_eqsize; +extern int csio_scsi_iqlen; +extern int csio_scsi_ioreqs; +extern uint32_t csio_max_scan_tmo; +extern uint32_t csio_delta_scan_tmo; +extern int csio_lun_qdepth; + +/* + **************************** NOTE ******************************* + * How do we calculate MAX FCoE SCSI SGEs? Here is the math: + * Max Egress WR size = 512 bytes + * One SCSI egress WR has the following fixed no of bytes: + * 48 (sizeof(struct fw_scsi_write[read]_wr)) - FW WR + * + 32 (sizeof(struct fc_fcp_cmnd)) - Immediate FCP_CMD + * ------ + * 80 + * ------ + * That leaves us with 512 - 96 = 432 bytes for data SGE. Using + * struct ulptx_sgl header for the SGE consumes: + * - 4 bytes for cmnd_sge. + * - 12 bytes for the first SGL. + * That leaves us with 416 bytes for the remaining SGE pairs. Which is + * is 416 / 24 (size(struct ulptx_sge_pair)) = 17 SGE pairs, + * or 34 SGEs. Adding the first SGE fetches us 35 SGEs. + */ +#define CSIO_SCSI_MAX_SGE 35 +#define CSIO_SCSI_ABRT_TMO_MS 60000 +#define CSIO_SCSI_LUNRST_TMO_MS 60000 +#define CSIO_SCSI_TM_POLL_MS 2000 /* should be less than + * all TM timeouts. + */ +#define CSIO_SCSI_IQ_WRSZ 128 +#define CSIO_SCSI_IQSIZE (csio_scsi_iqlen * CSIO_SCSI_IQ_WRSZ) + +#define CSIO_MAX_SNS_LEN 128 +#define CSIO_SCSI_RSP_LEN (FCP_RESP_WITH_EXT + 4 + CSIO_MAX_SNS_LEN) + +/* Reference to scsi_cmnd */ +#define csio_scsi_cmnd(req) ((req)->scratch1) + +struct csio_scsi_stats { + uint64_t n_tot_success; /* Total number of good I/Os */ + uint32_t n_rn_nr_error; /* No. of remote-node-not- + * ready errors + */ + uint32_t n_hw_nr_error; /* No. of hw-module-not- + * ready errors + */ + uint32_t n_dmamap_error; /* No. of DMA map erros */ + uint32_t n_unsupp_sge_error; /* No. of too-many-SGes + * errors. + */ + uint32_t n_no_req_error; /* No. of Out-of-ioreqs error */ + uint32_t n_busy_error; /* No. of -EBUSY errors */ + uint32_t n_hosterror; /* No. of FW_HOSTERROR I/O */ + uint32_t n_rsperror; /* No. of response errors */ + uint32_t n_autosense; /* No. of auto sense replies */ + uint32_t n_ovflerror; /* No. of overflow errors */ + uint32_t n_unflerror; /* No. of underflow errors */ + uint32_t n_rdev_nr_error;/* No. of rdev not + * ready errors + */ + uint32_t n_rdev_lost_error;/* No. of rdev lost errors */ + uint32_t n_rdev_logo_error;/* No. of rdev logo errors */ + uint32_t n_link_down_error;/* No. of link down errors */ + uint32_t n_no_xchg_error; /* No. no exchange error */ + uint32_t n_unknown_error;/* No. of unhandled errors */ + uint32_t n_aborted; /* No. of aborted I/Os */ + uint32_t n_abrt_timedout; /* No. of abort timedouts */ + uint32_t n_abrt_fail; /* No. of abort failures */ + uint32_t n_abrt_dups; /* No. of duplicate aborts */ + uint32_t n_abrt_race_comp; /* No. of aborts that raced + * with completions. + */ + uint32_t n_abrt_busy_error;/* No. of abort failures + * due to -EBUSY. + */ + uint32_t n_closed; /* No. of closed I/Os */ + uint32_t n_cls_busy_error; /* No. of close failures + * due to -EBUSY. + */ + uint32_t n_active; /* No. of IOs in active_q */ + uint32_t n_tm_active; /* No. of TMs in active_q */ + uint32_t n_wcbfn; /* No. of I/Os in worker + * cbfn q + */ + uint32_t n_free_ioreq; /* No. of freelist entries */ + uint32_t n_free_ddp; /* No. of DDP freelist */ + uint32_t n_unaligned; /* No. of Unaligned SGls */ + uint32_t n_inval_cplop; /* No. invalid CPL op's in IQ */ + uint32_t n_inval_scsiop; /* No. invalid scsi op's in IQ*/ +}; + +struct csio_scsim { + struct csio_hw *hw; /* Pointer to HW moduel */ + uint8_t max_sge; /* Max SGE */ + uint8_t proto_cmd_len; /* Proto specific SCSI + * cmd length + */ + uint16_t proto_rsp_len; /* Proto specific SCSI + * response length + */ + spinlock_t freelist_lock; /* Lock for ioreq freelist */ + struct list_head active_q; /* Outstanding SCSI I/Os */ + struct list_head ioreq_freelist; /* Free list of ioreq's */ + struct list_head ddp_freelist; /* DDP descriptor freelist */ + struct csio_scsi_stats stats; /* This module's statistics */ +}; + +/* State machine defines */ +enum csio_scsi_ev { + CSIO_SCSIE_START_IO = 1, /* Start a regular SCSI IO */ + CSIO_SCSIE_START_TM, /* Start a TM IO */ + CSIO_SCSIE_COMPLETED, /* IO Completed */ + CSIO_SCSIE_ABORT, /* Abort IO */ + CSIO_SCSIE_ABORTED, /* IO Aborted */ + CSIO_SCSIE_CLOSE, /* Close exchange */ + CSIO_SCSIE_CLOSED, /* Exchange closed */ + CSIO_SCSIE_DRVCLEANUP, /* Driver wants to manually + * cleanup this I/O. + */ +}; + +enum csio_scsi_lev { + CSIO_LEV_ALL = 1, + CSIO_LEV_LNODE, + CSIO_LEV_RNODE, + CSIO_LEV_LUN, +}; + +struct csio_scsi_level_data { + enum csio_scsi_lev level; + struct csio_rnode *rnode; + struct csio_lnode *lnode; + uint64_t oslun; +}; + +struct csio_cmd_priv { + uint8_t fc_tm_flags; /* task management flags */ + uint16_t wr_status; +}; + +static inline struct csio_cmd_priv *csio_priv(struct scsi_cmnd *cmd) +{ + return scsi_cmd_priv(cmd); +} + +static inline struct csio_ioreq * +csio_get_scsi_ioreq(struct csio_scsim *scm) +{ + struct csio_sm *req; + + if (likely(!list_empty(&scm->ioreq_freelist))) { + req = list_first_entry(&scm->ioreq_freelist, + struct csio_sm, sm_list); + list_del_init(&req->sm_list); + CSIO_DEC_STATS(scm, n_free_ioreq); + return (struct csio_ioreq *)req; + } else + return NULL; +} + +static inline void +csio_put_scsi_ioreq(struct csio_scsim *scm, struct csio_ioreq *ioreq) +{ + list_add_tail(&ioreq->sm.sm_list, &scm->ioreq_freelist); + CSIO_INC_STATS(scm, n_free_ioreq); +} + +static inline void +csio_put_scsi_ioreq_list(struct csio_scsim *scm, struct list_head *reqlist, + int n) +{ + list_splice_init(reqlist, &scm->ioreq_freelist); + scm->stats.n_free_ioreq += n; +} + +static inline struct csio_dma_buf * +csio_get_scsi_ddp(struct csio_scsim *scm) +{ + struct csio_dma_buf *ddp; + + if (likely(!list_empty(&scm->ddp_freelist))) { + ddp = list_first_entry(&scm->ddp_freelist, + struct csio_dma_buf, list); + list_del_init(&ddp->list); + CSIO_DEC_STATS(scm, n_free_ddp); + return ddp; + } else + return NULL; +} + +static inline void +csio_put_scsi_ddp(struct csio_scsim *scm, struct csio_dma_buf *ddp) +{ + list_add_tail(&ddp->list, &scm->ddp_freelist); + CSIO_INC_STATS(scm, n_free_ddp); +} + +static inline void +csio_put_scsi_ddp_list(struct csio_scsim *scm, struct list_head *reqlist, + int n) +{ + list_splice_tail_init(reqlist, &scm->ddp_freelist); + scm->stats.n_free_ddp += n; +} + +static inline void +csio_scsi_completed(struct csio_ioreq *ioreq, struct list_head *cbfn_q) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_COMPLETED); + if (csio_list_deleted(&ioreq->sm.sm_list)) + list_add_tail(&ioreq->sm.sm_list, cbfn_q); +} + +static inline void +csio_scsi_aborted(struct csio_ioreq *ioreq, struct list_head *cbfn_q) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_ABORTED); + list_add_tail(&ioreq->sm.sm_list, cbfn_q); +} + +static inline void +csio_scsi_closed(struct csio_ioreq *ioreq, struct list_head *cbfn_q) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_CLOSED); + list_add_tail(&ioreq->sm.sm_list, cbfn_q); +} + +static inline void +csio_scsi_drvcleanup(struct csio_ioreq *ioreq) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_DRVCLEANUP); +} + +/* + * csio_scsi_start_io - Kick starts the IO SM. + * @req: io request SM. + * + * needs to be called with lock held. + */ +static inline int +csio_scsi_start_io(struct csio_ioreq *ioreq) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_START_IO); + return ioreq->drv_status; +} + +/* + * csio_scsi_start_tm - Kicks off the Task management IO SM. + * @req: io request SM. + * + * needs to be called with lock held. + */ +static inline int +csio_scsi_start_tm(struct csio_ioreq *ioreq) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_START_TM); + return ioreq->drv_status; +} + +/* + * csio_scsi_abort - Abort an IO request + * @req: io request SM. + * + * needs to be called with lock held. + */ +static inline int +csio_scsi_abort(struct csio_ioreq *ioreq) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_ABORT); + return ioreq->drv_status; +} + +/* + * csio_scsi_close - Close an IO request + * @req: io request SM. + * + * needs to be called with lock held. + */ +static inline int +csio_scsi_close(struct csio_ioreq *ioreq) +{ + csio_post_event(&ioreq->sm, CSIO_SCSIE_CLOSE); + return ioreq->drv_status; +} + +void csio_scsi_cleanup_io_q(struct csio_scsim *, struct list_head *); +int csio_scsim_cleanup_io(struct csio_scsim *, bool abort); +int csio_scsim_cleanup_io_lnode(struct csio_scsim *, + struct csio_lnode *); +struct csio_ioreq *csio_scsi_cmpl_handler(struct csio_hw *, void *, uint32_t, + struct csio_fl_dma_buf *, + void *, uint8_t **); +int csio_scsi_qconfig(struct csio_hw *); +int csio_scsim_init(struct csio_scsim *, struct csio_hw *); +void csio_scsim_exit(struct csio_scsim *); + +#endif /* __CSIO_SCSI_H__ */ -- cgit v1.2.3