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/vmw_pvscsi.h | 461 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 461 insertions(+) create mode 100644 drivers/scsi/vmw_pvscsi.h (limited to 'drivers/scsi/vmw_pvscsi.h') diff --git a/drivers/scsi/vmw_pvscsi.h b/drivers/scsi/vmw_pvscsi.h new file mode 100644 index 000000000..9d16cf925 --- /dev/null +++ b/drivers/scsi/vmw_pvscsi.h @@ -0,0 +1,461 @@ +/* + * VMware PVSCSI header file + * + * Copyright (C) 2008-2014, VMware, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License and no later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + */ + +#ifndef _VMW_PVSCSI_H_ +#define _VMW_PVSCSI_H_ + +#include + +#define PVSCSI_DRIVER_VERSION_STRING "1.0.7.0-k" + +#define PVSCSI_MAX_NUM_SG_ENTRIES_PER_SEGMENT 128 + +#define MASK(n) ((1 << (n)) - 1) /* make an n-bit mask */ + +#define PCI_DEVICE_ID_VMWARE_PVSCSI 0x07C0 + +/* + * host adapter status/error codes + */ +enum HostBusAdapterStatus { + BTSTAT_SUCCESS = 0x00, /* CCB complete normally with no errors */ + BTSTAT_LINKED_COMMAND_COMPLETED = 0x0a, + BTSTAT_LINKED_COMMAND_COMPLETED_WITH_FLAG = 0x0b, + BTSTAT_DATA_UNDERRUN = 0x0c, + BTSTAT_SELTIMEO = 0x11, /* SCSI selection timeout */ + BTSTAT_DATARUN = 0x12, /* data overrun/underrun */ + BTSTAT_BUSFREE = 0x13, /* unexpected bus free */ + BTSTAT_INVPHASE = 0x14, /* invalid bus phase or sequence + * requested by target */ + BTSTAT_LUNMISMATCH = 0x17, /* linked CCB has different LUN from + * first CCB */ + BTSTAT_INVPARAM = 0x1a, /* invalid parameter in CCB or segment + * list */ + BTSTAT_SENSFAILED = 0x1b, /* auto request sense failed */ + BTSTAT_TAGREJECT = 0x1c, /* SCSI II tagged queueing message + * rejected by target */ + BTSTAT_BADMSG = 0x1d, /* unsupported message received by the + * host adapter */ + BTSTAT_HAHARDWARE = 0x20, /* host adapter hardware failed */ + BTSTAT_NORESPONSE = 0x21, /* target did not respond to SCSI ATN, + * sent a SCSI RST */ + BTSTAT_SENTRST = 0x22, /* host adapter asserted a SCSI RST */ + BTSTAT_RECVRST = 0x23, /* other SCSI devices asserted a SCSI + * RST */ + BTSTAT_DISCONNECT = 0x24, /* target device reconnected improperly + * (w/o tag) */ + BTSTAT_BUSRESET = 0x25, /* host adapter issued BUS device reset */ + BTSTAT_ABORTQUEUE = 0x26, /* abort queue generated */ + BTSTAT_HASOFTWARE = 0x27, /* host adapter software error */ + BTSTAT_HATIMEOUT = 0x30, /* host adapter hardware timeout error */ + BTSTAT_SCSIPARITY = 0x34, /* SCSI parity error detected */ +}; + +/* + * SCSI device status values. + */ +enum ScsiDeviceStatus { + SDSTAT_GOOD = 0x00, /* No errors. */ + SDSTAT_CHECK = 0x02, /* Check condition. */ +}; + +/* + * Register offsets. + * + * These registers are accessible both via i/o space and mm i/o. + */ + +enum PVSCSIRegOffset { + PVSCSI_REG_OFFSET_COMMAND = 0x0, + PVSCSI_REG_OFFSET_COMMAND_DATA = 0x4, + PVSCSI_REG_OFFSET_COMMAND_STATUS = 0x8, + PVSCSI_REG_OFFSET_LAST_STS_0 = 0x100, + PVSCSI_REG_OFFSET_LAST_STS_1 = 0x104, + PVSCSI_REG_OFFSET_LAST_STS_2 = 0x108, + PVSCSI_REG_OFFSET_LAST_STS_3 = 0x10c, + PVSCSI_REG_OFFSET_INTR_STATUS = 0x100c, + PVSCSI_REG_OFFSET_INTR_MASK = 0x2010, + PVSCSI_REG_OFFSET_KICK_NON_RW_IO = 0x3014, + PVSCSI_REG_OFFSET_DEBUG = 0x3018, + PVSCSI_REG_OFFSET_KICK_RW_IO = 0x4018, +}; + +/* + * Virtual h/w commands. + */ + +enum PVSCSICommands { + PVSCSI_CMD_FIRST = 0, /* has to be first */ + + PVSCSI_CMD_ADAPTER_RESET = 1, + PVSCSI_CMD_ISSUE_SCSI = 2, + PVSCSI_CMD_SETUP_RINGS = 3, + PVSCSI_CMD_RESET_BUS = 4, + PVSCSI_CMD_RESET_DEVICE = 5, + PVSCSI_CMD_ABORT_CMD = 6, + PVSCSI_CMD_CONFIG = 7, + PVSCSI_CMD_SETUP_MSG_RING = 8, + PVSCSI_CMD_DEVICE_UNPLUG = 9, + PVSCSI_CMD_SETUP_REQCALLTHRESHOLD = 10, + + PVSCSI_CMD_LAST = 11 /* has to be last */ +}; + +/* + * Command descriptor for PVSCSI_CMD_RESET_DEVICE -- + */ + +struct PVSCSICmdDescResetDevice { + u32 target; + u8 lun[8]; +} __packed; + +/* + * Command descriptor for PVSCSI_CMD_CONFIG -- + */ + +struct PVSCSICmdDescConfigCmd { + u64 cmpAddr; + u64 configPageAddress; + u32 configPageNum; + u32 _pad; +} __packed; + +/* + * Command descriptor for PVSCSI_CMD_SETUP_REQCALLTHRESHOLD -- + */ + +struct PVSCSICmdDescSetupReqCall { + u32 enable; +} __packed; + +enum PVSCSIConfigPageType { + PVSCSI_CONFIG_PAGE_CONTROLLER = 0x1958, + PVSCSI_CONFIG_PAGE_PHY = 0x1959, + PVSCSI_CONFIG_PAGE_DEVICE = 0x195a, +}; + +enum PVSCSIConfigPageAddressType { + PVSCSI_CONFIG_CONTROLLER_ADDRESS = 0x2120, + PVSCSI_CONFIG_BUSTARGET_ADDRESS = 0x2121, + PVSCSI_CONFIG_PHY_ADDRESS = 0x2122, +}; + +/* + * Command descriptor for PVSCSI_CMD_ABORT_CMD -- + * + * - currently does not support specifying the LUN. + * - _pad should be 0. + */ + +struct PVSCSICmdDescAbortCmd { + u64 context; + u32 target; + u32 _pad; +} __packed; + +/* + * Command descriptor for PVSCSI_CMD_SETUP_RINGS -- + * + * Notes: + * - reqRingNumPages and cmpRingNumPages need to be power of two. + * - reqRingNumPages and cmpRingNumPages need to be different from 0, + * - reqRingNumPages and cmpRingNumPages need to be inferior to + * PVSCSI_SETUP_RINGS_MAX_NUM_PAGES. + */ + +#define PVSCSI_SETUP_RINGS_MAX_NUM_PAGES 32 +struct PVSCSICmdDescSetupRings { + u32 reqRingNumPages; + u32 cmpRingNumPages; + u64 ringsStatePPN; + u64 reqRingPPNs[PVSCSI_SETUP_RINGS_MAX_NUM_PAGES]; + u64 cmpRingPPNs[PVSCSI_SETUP_RINGS_MAX_NUM_PAGES]; +} __packed; + +/* + * Command descriptor for PVSCSI_CMD_SETUP_MSG_RING -- + * + * Notes: + * - this command was not supported in the initial revision of the h/w + * interface. Before using it, you need to check that it is supported by + * writing PVSCSI_CMD_SETUP_MSG_RING to the 'command' register, then + * immediately after read the 'command status' register: + * * a value of -1 means that the cmd is NOT supported, + * * a value != -1 means that the cmd IS supported. + * If it's supported the 'command status' register should return: + * sizeof(PVSCSICmdDescSetupMsgRing) / sizeof(u32). + * - this command should be issued _after_ the usual SETUP_RINGS so that the + * RingsState page is already setup. If not, the command is a nop. + * - numPages needs to be a power of two, + * - numPages needs to be different from 0, + * - _pad should be zero. + */ + +#define PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES 16 + +struct PVSCSICmdDescSetupMsgRing { + u32 numPages; + u32 _pad; + u64 ringPPNs[PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES]; +} __packed; + +enum PVSCSIMsgType { + PVSCSI_MSG_DEV_ADDED = 0, + PVSCSI_MSG_DEV_REMOVED = 1, + PVSCSI_MSG_LAST = 2, +}; + +/* + * Msg descriptor. + * + * sizeof(struct PVSCSIRingMsgDesc) == 128. + * + * - type is of type enum PVSCSIMsgType. + * - the content of args depend on the type of event being delivered. + */ + +struct PVSCSIRingMsgDesc { + u32 type; + u32 args[31]; +} __packed; + +struct PVSCSIMsgDescDevStatusChanged { + u32 type; /* PVSCSI_MSG_DEV _ADDED / _REMOVED */ + u32 bus; + u32 target; + u8 lun[8]; + u32 pad[27]; +} __packed; + +/* + * Rings state. + * + * - the fields: + * . msgProdIdx, + * . msgConsIdx, + * . msgNumEntriesLog2, + * .. are only used once the SETUP_MSG_RING cmd has been issued. + * - '_pad' helps to ensure that the msg related fields are on their own + * cache-line. + */ + +struct PVSCSIRingsState { + u32 reqProdIdx; + u32 reqConsIdx; + u32 reqNumEntriesLog2; + + u32 cmpProdIdx; + u32 cmpConsIdx; + u32 cmpNumEntriesLog2; + + u32 reqCallThreshold; + + u8 _pad[100]; + + u32 msgProdIdx; + u32 msgConsIdx; + u32 msgNumEntriesLog2; +} __packed; + +/* + * Request descriptor. + * + * sizeof(RingReqDesc) = 128 + * + * - context: is a unique identifier of a command. It could normally be any + * 64bit value, however we currently store it in the serialNumber variable + * of struct SCSI_Command, so we have the following restrictions due to the + * way this field is handled in the vmkernel storage stack: + * * this value can't be 0, + * * the upper 32bit need to be 0 since serialNumber is as a u32. + * Currently tracked as PR 292060. + * - dataLen: contains the total number of bytes that need to be transferred. + * - dataAddr: + * * if PVSCSI_FLAG_CMD_WITH_SG_LIST is set: dataAddr is the PA of the first + * s/g table segment, each s/g segment is entirely contained on a single + * page of physical memory, + * * if PVSCSI_FLAG_CMD_WITH_SG_LIST is NOT set, then dataAddr is the PA of + * the buffer used for the DMA transfer, + * - flags: + * * PVSCSI_FLAG_CMD_WITH_SG_LIST: see dataAddr above, + * * PVSCSI_FLAG_CMD_DIR_NONE: no DMA involved, + * * PVSCSI_FLAG_CMD_DIR_TOHOST: transfer from device to main memory, + * * PVSCSI_FLAG_CMD_DIR_TODEVICE: transfer from main memory to device, + * * PVSCSI_FLAG_CMD_OUT_OF_BAND_CDB: reserved to handle CDBs larger than + * 16bytes. To be specified. + * - vcpuHint: vcpuId of the processor that will be most likely waiting for the + * completion of the i/o. For guest OSes that use lowest priority message + * delivery mode (such as windows), we use this "hint" to deliver the + * completion action to the proper vcpu. For now, we can use the vcpuId of + * the processor that initiated the i/o as a likely candidate for the vcpu + * that will be waiting for the completion.. + * - bus should be 0: we currently only support bus 0 for now. + * - unused should be zero'd. + */ + +#define PVSCSI_FLAG_CMD_WITH_SG_LIST (1 << 0) +#define PVSCSI_FLAG_CMD_OUT_OF_BAND_CDB (1 << 1) +#define PVSCSI_FLAG_CMD_DIR_NONE (1 << 2) +#define PVSCSI_FLAG_CMD_DIR_TOHOST (1 << 3) +#define PVSCSI_FLAG_CMD_DIR_TODEVICE (1 << 4) + +struct PVSCSIRingReqDesc { + u64 context; + u64 dataAddr; + u64 dataLen; + u64 senseAddr; + u32 senseLen; + u32 flags; + u8 cdb[16]; + u8 cdbLen; + u8 lun[8]; + u8 tag; + u8 bus; + u8 target; + u16 vcpuHint; + u8 unused[58]; +} __packed; + +/* + * Scatter-gather list management. + * + * As described above, when PVSCSI_FLAG_CMD_WITH_SG_LIST is set in the + * RingReqDesc.flags, then RingReqDesc.dataAddr is the PA of the first s/g + * table segment. + * + * - each segment of the s/g table contain a succession of struct + * PVSCSISGElement. + * - each segment is entirely contained on a single physical page of memory. + * - a "chain" s/g element has the flag PVSCSI_SGE_FLAG_CHAIN_ELEMENT set in + * PVSCSISGElement.flags and in this case: + * * addr is the PA of the next s/g segment, + * * length is undefined, assumed to be 0. + */ + +struct PVSCSISGElement { + u64 addr; + u32 length; + u32 flags; +} __packed; + +/* + * Completion descriptor. + * + * sizeof(RingCmpDesc) = 32 + * + * - context: identifier of the command. The same thing that was specified + * under "context" as part of struct RingReqDesc at initiation time, + * - dataLen: number of bytes transferred for the actual i/o operation, + * - senseLen: number of bytes written into the sense buffer, + * - hostStatus: adapter status, + * - scsiStatus: device status, + * - _pad should be zero. + */ + +struct PVSCSIRingCmpDesc { + u64 context; + u64 dataLen; + u32 senseLen; + u16 hostStatus; + u16 scsiStatus; + u32 _pad[2]; +} __packed; + +struct PVSCSIConfigPageHeader { + u32 pageNum; + u16 numDwords; + u16 hostStatus; + u16 scsiStatus; + u16 reserved[3]; +} __packed; + +struct PVSCSIConfigPageController { + struct PVSCSIConfigPageHeader header; + u64 nodeWWN; /* Device name as defined in the SAS spec. */ + u16 manufacturer[64]; + u16 serialNumber[64]; + u16 opromVersion[32]; + u16 hwVersion[32]; + u16 firmwareVersion[32]; + u32 numPhys; + u8 useConsecutivePhyWWNs; + u8 reserved[3]; +} __packed; + +/* + * Interrupt status / IRQ bits. + */ + +#define PVSCSI_INTR_CMPL_0 (1 << 0) +#define PVSCSI_INTR_CMPL_1 (1 << 1) +#define PVSCSI_INTR_CMPL_MASK MASK(2) + +#define PVSCSI_INTR_MSG_0 (1 << 2) +#define PVSCSI_INTR_MSG_1 (1 << 3) +#define PVSCSI_INTR_MSG_MASK (MASK(2) << 2) + +#define PVSCSI_INTR_ALL_SUPPORTED MASK(4) + +/* + * Number of MSI-X vectors supported. + */ +#define PVSCSI_MAX_INTRS 24 + +/* + * Misc constants for the rings. + */ + +#define PVSCSI_MAX_NUM_PAGES_REQ_RING PVSCSI_SETUP_RINGS_MAX_NUM_PAGES +#define PVSCSI_MAX_NUM_PAGES_CMP_RING PVSCSI_SETUP_RINGS_MAX_NUM_PAGES +#define PVSCSI_MAX_NUM_PAGES_MSG_RING PVSCSI_SETUP_MSG_RING_MAX_NUM_PAGES + +#define PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE \ + (PAGE_SIZE / sizeof(struct PVSCSIRingReqDesc)) + +#define PVSCSI_MAX_REQ_QUEUE_DEPTH \ + (PVSCSI_MAX_NUM_PAGES_REQ_RING * PVSCSI_MAX_NUM_REQ_ENTRIES_PER_PAGE) + +#define PVSCSI_MEM_SPACE_COMMAND_NUM_PAGES 1 +#define PVSCSI_MEM_SPACE_INTR_STATUS_NUM_PAGES 1 +#define PVSCSI_MEM_SPACE_MISC_NUM_PAGES 2 +#define PVSCSI_MEM_SPACE_KICK_IO_NUM_PAGES 2 +#define PVSCSI_MEM_SPACE_MSIX_NUM_PAGES 2 + +enum PVSCSIMemSpace { + PVSCSI_MEM_SPACE_COMMAND_PAGE = 0, + PVSCSI_MEM_SPACE_INTR_STATUS_PAGE = 1, + PVSCSI_MEM_SPACE_MISC_PAGE = 2, + PVSCSI_MEM_SPACE_KICK_IO_PAGE = 4, + PVSCSI_MEM_SPACE_MSIX_TABLE_PAGE = 6, + PVSCSI_MEM_SPACE_MSIX_PBA_PAGE = 7, +}; + +#define PVSCSI_MEM_SPACE_NUM_PAGES \ + (PVSCSI_MEM_SPACE_COMMAND_NUM_PAGES + \ + PVSCSI_MEM_SPACE_INTR_STATUS_NUM_PAGES + \ + PVSCSI_MEM_SPACE_MISC_NUM_PAGES + \ + PVSCSI_MEM_SPACE_KICK_IO_NUM_PAGES + \ + PVSCSI_MEM_SPACE_MSIX_NUM_PAGES) + +#define PVSCSI_MEM_SPACE_SIZE (PVSCSI_MEM_SPACE_NUM_PAGES * PAGE_SIZE) + +#endif /* _VMW_PVSCSI_H_ */ -- cgit v1.2.3