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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/scsi/aic7xxx/aic79xx_osm.h | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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().
...
Diffstat (limited to 'drivers/scsi/aic7xxx/aic79xx_osm.h')
-rw-r--r-- | drivers/scsi/aic7xxx/aic79xx_osm.h | 658 |
1 files changed, 658 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.h b/drivers/scsi/aic7xxx/aic79xx_osm.h new file mode 100644 index 000000000..793fe1999 --- /dev/null +++ b/drivers/scsi/aic7xxx/aic79xx_osm.h @@ -0,0 +1,658 @@ +/* + * Adaptec AIC79xx device driver for Linux. + * + * Copyright (c) 2000-2001 Adaptec Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + * + * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#166 $ + * + */ +#ifndef _AIC79XX_LINUX_H_ +#define _AIC79XX_LINUX_H_ + +#include <linux/types.h> +#include <linux/blkdev.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <asm/byteorder.h> +#include <asm/io.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_eh.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_tcq.h> +#include <scsi/scsi_transport.h> +#include <scsi/scsi_transport_spi.h> + +/* Core SCSI definitions */ +#define AIC_LIB_PREFIX ahd + +#include "cam.h" +#include "queue.h" +#include "scsi_message.h" +#include "scsi_iu.h" +#include "aiclib.h" + +/*********************************** Debugging ********************************/ +#ifdef CONFIG_AIC79XX_DEBUG_ENABLE +#ifdef CONFIG_AIC79XX_DEBUG_MASK +#define AHD_DEBUG 1 +#define AHD_DEBUG_OPTS CONFIG_AIC79XX_DEBUG_MASK +#else +/* + * Compile in debugging code, but do not enable any printfs. + */ +#define AHD_DEBUG 1 +#define AHD_DEBUG_OPTS 0 +#endif +/* No debugging code. */ +#endif + +/********************************** Misc Macros *******************************/ +#define powerof2(x) ((((x)-1)&(x))==0) + +/************************* Forward Declarations *******************************/ +struct ahd_softc; +typedef struct pci_dev *ahd_dev_softc_t; +typedef struct scsi_cmnd *ahd_io_ctx_t; + +/******************************* Byte Order ***********************************/ +#define ahd_htobe16(x) cpu_to_be16(x) +#define ahd_htobe32(x) cpu_to_be32(x) +#define ahd_htobe64(x) cpu_to_be64(x) +#define ahd_htole16(x) cpu_to_le16(x) +#define ahd_htole32(x) cpu_to_le32(x) +#define ahd_htole64(x) cpu_to_le64(x) + +#define ahd_be16toh(x) be16_to_cpu(x) +#define ahd_be32toh(x) be32_to_cpu(x) +#define ahd_be64toh(x) be64_to_cpu(x) +#define ahd_le16toh(x) le16_to_cpu(x) +#define ahd_le32toh(x) le32_to_cpu(x) +#define ahd_le64toh(x) le64_to_cpu(x) + +/************************* Configuration Data *********************************/ +extern uint32_t aic79xx_allow_memio; +extern struct scsi_host_template aic79xx_driver_template; + +/***************************** Bus Space/DMA **********************************/ + +typedef uint32_t bus_size_t; + +typedef enum { + BUS_SPACE_MEMIO, + BUS_SPACE_PIO +} bus_space_tag_t; + +typedef union { + u_long ioport; + volatile uint8_t __iomem *maddr; +} bus_space_handle_t; + +typedef struct bus_dma_segment +{ + dma_addr_t ds_addr; + bus_size_t ds_len; +} bus_dma_segment_t; + +struct ahd_linux_dma_tag +{ + bus_size_t alignment; + bus_size_t boundary; + bus_size_t maxsize; +}; +typedef struct ahd_linux_dma_tag* bus_dma_tag_t; + +typedef dma_addr_t bus_dmamap_t; + +typedef int bus_dma_filter_t(void*, dma_addr_t); +typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); + +#define BUS_DMA_WAITOK 0x0 +#define BUS_DMA_NOWAIT 0x1 +#define BUS_DMA_ALLOCNOW 0x2 +#define BUS_DMA_LOAD_SEGS 0x4 /* + * Argument is an S/G list not + * a single buffer. + */ + +#define BUS_SPACE_MAXADDR 0xFFFFFFFF +#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF +#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF + +int ahd_dma_tag_create(struct ahd_softc *, bus_dma_tag_t /*parent*/, + bus_size_t /*alignment*/, bus_size_t /*boundary*/, + dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/, + bus_dma_filter_t*/*filter*/, void */*filterarg*/, + bus_size_t /*maxsize*/, int /*nsegments*/, + bus_size_t /*maxsegsz*/, int /*flags*/, + bus_dma_tag_t */*dma_tagp*/); + +void ahd_dma_tag_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/); + +int ahd_dmamem_alloc(struct ahd_softc *, bus_dma_tag_t /*dmat*/, + void** /*vaddr*/, int /*flags*/, + bus_dmamap_t* /*mapp*/); + +void ahd_dmamem_free(struct ahd_softc *, bus_dma_tag_t /*dmat*/, + void* /*vaddr*/, bus_dmamap_t /*map*/); + +void ahd_dmamap_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/, + bus_dmamap_t /*map*/); + +int ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t /*dmat*/, + bus_dmamap_t /*map*/, void * /*buf*/, + bus_size_t /*buflen*/, bus_dmamap_callback_t *, + void */*callback_arg*/, int /*flags*/); + +int ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t); + +/* + * Operations performed by ahd_dmamap_sync(). + */ +#define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ +#define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ +#define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ +#define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ + +/* + * XXX + * ahd_dmamap_sync is only used on buffers allocated with + * the dma_alloc_coherent() API. Although I'm not sure how + * this works on architectures with a write buffer, Linux does + * not have an API to sync "coherent" memory. Perhaps we need + * to do an mb()? + */ +#define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op) + +/********************************** Includes **********************************/ +#ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT +#define AIC_DEBUG_REGISTERS 1 +#else +#define AIC_DEBUG_REGISTERS 0 +#endif +#include "aic79xx.h" + +/***************************** SMP support ************************************/ +#include <linux/spinlock.h> + +#define AIC79XX_DRIVER_VERSION "3.0" + +/*************************** Device Data Structures ***************************/ +/* + * A per probed device structure used to deal with some error recovery + * scenarios that the Linux mid-layer code just doesn't know how to + * handle. The structure allocated for a device only becomes persistent + * after a successfully completed inquiry command to the target when + * that inquiry data indicates a lun is present. + */ + +typedef enum { + AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ + AHD_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ + AHD_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ + AHD_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */ +} ahd_linux_dev_flags; + +struct ahd_linux_device { + TAILQ_ENTRY(ahd_linux_device) links; + + /* + * The number of transactions currently + * queued to the device. + */ + int active; + + /* + * The currently allowed number of + * transactions that can be queued to + * the device. Must be signed for + * conversion from tagged to untagged + * mode where the device may have more + * than one outstanding active transaction. + */ + int openings; + + /* + * A positive count indicates that this + * device's queue is halted. + */ + u_int qfrozen; + + /* + * Cumulative command counter. + */ + u_long commands_issued; + + /* + * The number of tagged transactions when + * running at our current opening level + * that have been successfully received by + * this device since the last QUEUE FULL. + */ + u_int tag_success_count; +#define AHD_TAG_SUCCESS_INTERVAL 50 + + ahd_linux_dev_flags flags; + + /* + * Per device timer. + */ + struct timer_list timer; + + /* + * The high limit for the tags variable. + */ + u_int maxtags; + + /* + * The computed number of tags outstanding + * at the time of the last QUEUE FULL event. + */ + u_int tags_on_last_queuefull; + + /* + * How many times we have seen a queue full + * with the same number of tags. This is used + * to stop our adaptive queue depth algorithm + * on devices with a fixed number of tags. + */ + u_int last_queuefull_same_count; +#define AHD_LOCK_TAGS_COUNT 50 + + /* + * How many transactions have been queued + * without the device going idle. We use + * this statistic to determine when to issue + * an ordered tag to prevent transaction + * starvation. This statistic is only updated + * if the AHD_DEV_PERIODIC_OTAG flag is set + * on this device. + */ + u_int commands_since_idle_or_otag; +#define AHD_OTAG_THRESH 500 +}; + +/********************* Definitions Required by the Core ***********************/ +/* + * Number of SG segments we require. So long as the S/G segments for + * a particular transaction are allocated in a physically contiguous + * manner and are allocated below 4GB, the number of S/G segments is + * unrestricted. + */ +#define AHD_NSEG 128 + +/* + * Per-SCB OSM storage. + */ +struct scb_platform_data { + struct ahd_linux_device *dev; + dma_addr_t buf_busaddr; + uint32_t xfer_len; + uint32_t sense_resid; /* Auto-Sense residual */ +}; + +/* + * Define a structure used for each host adapter. All members are + * aligned on a boundary >= the size of the member to honor the + * alignment restrictions of the various platforms supported by + * this driver. + */ +struct ahd_platform_data { + /* + * Fields accessed from interrupt context. + */ + struct scsi_target *starget[AHD_NUM_TARGETS]; + + spinlock_t spin_lock; + struct completion *eh_done; + struct Scsi_Host *host; /* pointer to scsi host */ +#define AHD_LINUX_NOIRQ ((uint32_t)~0) + uint32_t irq; /* IRQ for this adapter */ + uint32_t bios_address; + resource_size_t mem_busaddr; /* Mem Base Addr */ +}; + +void ahd_delay(long); + +/***************************** Low Level I/O **********************************/ +uint8_t ahd_inb(struct ahd_softc * ahd, long port); +void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val); +void ahd_outw_atomic(struct ahd_softc * ahd, + long port, uint16_t val); +void ahd_outsb(struct ahd_softc * ahd, long port, + uint8_t *, int count); +void ahd_insb(struct ahd_softc * ahd, long port, + uint8_t *, int count); + +/**************************** Initialization **********************************/ +int ahd_linux_register_host(struct ahd_softc *, + struct scsi_host_template *); + +/******************************** Locking *************************************/ +static inline void +ahd_lockinit(struct ahd_softc *ahd) +{ + spin_lock_init(&ahd->platform_data->spin_lock); +} + +static inline void +ahd_lock(struct ahd_softc *ahd, unsigned long *flags) +{ + spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags); +} + +static inline void +ahd_unlock(struct ahd_softc *ahd, unsigned long *flags) +{ + spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags); +} + +/******************************* PCI Definitions ******************************/ +/* + * PCIM_xxx: mask to locate subfield in register + * PCIR_xxx: config register offset + * PCIC_xxx: device class + * PCIS_xxx: device subclass + * PCIP_xxx: device programming interface + * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) + * PCID_xxx: device ID + */ +#define PCIR_DEVVENDOR 0x00 +#define PCIR_VENDOR 0x00 +#define PCIR_DEVICE 0x02 +#define PCIR_COMMAND 0x04 +#define PCIM_CMD_PORTEN 0x0001 +#define PCIM_CMD_MEMEN 0x0002 +#define PCIM_CMD_BUSMASTEREN 0x0004 +#define PCIM_CMD_MWRICEN 0x0010 +#define PCIM_CMD_PERRESPEN 0x0040 +#define PCIM_CMD_SERRESPEN 0x0100 +#define PCIR_STATUS 0x06 +#define PCIR_REVID 0x08 +#define PCIR_PROGIF 0x09 +#define PCIR_SUBCLASS 0x0a +#define PCIR_CLASS 0x0b +#define PCIR_CACHELNSZ 0x0c +#define PCIR_LATTIMER 0x0d +#define PCIR_HEADERTYPE 0x0e +#define PCIM_MFDEV 0x80 +#define PCIR_BIST 0x0f +#define PCIR_CAP_PTR 0x34 + +/* config registers for header type 0 devices */ +#define PCIR_MAPS 0x10 + +/****************************** PCI-X definitions *****************************/ +#define PCIXR_COMMAND 0x96 +#define PCIXR_DEVADDR 0x98 +#define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */ +#define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */ +#define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */ +#define PCIXR_STATUS 0x9A +#define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */ +#define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */ +#define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */ +#define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */ +#define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */ +#define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */ +#define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */ +#define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */ +#define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */ + +typedef enum +{ + AHD_POWER_STATE_D0, + AHD_POWER_STATE_D1, + AHD_POWER_STATE_D2, + AHD_POWER_STATE_D3 +} ahd_power_state; + +void ahd_power_state_change(struct ahd_softc *ahd, + ahd_power_state new_state); + +/******************************* PCI Routines *********************************/ +int ahd_linux_pci_init(void); +void ahd_linux_pci_exit(void); +int ahd_pci_map_registers(struct ahd_softc *ahd); +int ahd_pci_map_int(struct ahd_softc *ahd); + +uint32_t ahd_pci_read_config(ahd_dev_softc_t pci, + int reg, int width); +void ahd_pci_write_config(ahd_dev_softc_t pci, + int reg, uint32_t value, + int width); + +static inline int ahd_get_pci_function(ahd_dev_softc_t); +static inline int +ahd_get_pci_function(ahd_dev_softc_t pci) +{ + return (PCI_FUNC(pci->devfn)); +} + +static inline int ahd_get_pci_slot(ahd_dev_softc_t); +static inline int +ahd_get_pci_slot(ahd_dev_softc_t pci) +{ + return (PCI_SLOT(pci->devfn)); +} + +static inline int ahd_get_pci_bus(ahd_dev_softc_t); +static inline int +ahd_get_pci_bus(ahd_dev_softc_t pci) +{ + return (pci->bus->number); +} + +static inline void ahd_flush_device_writes(struct ahd_softc *); +static inline void +ahd_flush_device_writes(struct ahd_softc *ahd) +{ + /* XXX Is this sufficient for all architectures??? */ + ahd_inb(ahd, INTSTAT); +} + +/**************************** Proc FS Support *********************************/ +int ahd_proc_write_seeprom(struct Scsi_Host *, char *, int); +int ahd_linux_show_info(struct seq_file *,struct Scsi_Host *); + +/*********************** Transaction Access Wrappers **************************/ + +static inline +void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status) +{ + cmd->result &= ~(CAM_STATUS_MASK << 16); + cmd->result |= status << 16; +} + +static inline +void ahd_set_transaction_status(struct scb *scb, uint32_t status) +{ + ahd_cmd_set_transaction_status(scb->io_ctx,status); +} + +static inline +void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status) +{ + cmd->result &= ~0xFFFF; + cmd->result |= status; +} + +static inline +void ahd_set_scsi_status(struct scb *scb, uint32_t status) +{ + ahd_cmd_set_scsi_status(scb->io_ctx, status); +} + +static inline +uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd) +{ + return ((cmd->result >> 16) & CAM_STATUS_MASK); +} + +static inline +uint32_t ahd_get_transaction_status(struct scb *scb) +{ + return (ahd_cmd_get_transaction_status(scb->io_ctx)); +} + +static inline +uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd) +{ + return (cmd->result & 0xFFFF); +} + +static inline +uint32_t ahd_get_scsi_status(struct scb *scb) +{ + return (ahd_cmd_get_scsi_status(scb->io_ctx)); +} + +static inline +void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type) +{ + /* + * Nothing to do for linux as the incoming transaction + * has no concept of tag/non tagged, etc. + */ +} + +static inline +u_long ahd_get_transfer_length(struct scb *scb) +{ + return (scb->platform_data->xfer_len); +} + +static inline +int ahd_get_transfer_dir(struct scb *scb) +{ + return (scb->io_ctx->sc_data_direction); +} + +static inline +void ahd_set_residual(struct scb *scb, u_long resid) +{ + scsi_set_resid(scb->io_ctx, resid); +} + +static inline +void ahd_set_sense_residual(struct scb *scb, u_long resid) +{ + scb->platform_data->sense_resid = resid; +} + +static inline +u_long ahd_get_residual(struct scb *scb) +{ + return scsi_get_resid(scb->io_ctx); +} + +static inline +u_long ahd_get_sense_residual(struct scb *scb) +{ + return (scb->platform_data->sense_resid); +} + +static inline +int ahd_perform_autosense(struct scb *scb) +{ + /* + * We always perform autosense in Linux. + * On other platforms this is set on a + * per-transaction basis. + */ + return (1); +} + +static inline uint32_t +ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb) +{ + return (sizeof(struct scsi_sense_data)); +} + +static inline void +ahd_notify_xfer_settings_change(struct ahd_softc *ahd, + struct ahd_devinfo *devinfo) +{ + /* Nothing to do here for linux */ +} + +static inline void +ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb) +{ + ahd->flags &= ~AHD_RESOURCE_SHORTAGE; +} + +int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg); +void ahd_platform_free(struct ahd_softc *ahd); +void ahd_platform_init(struct ahd_softc *ahd); +void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb); + +static inline void +ahd_freeze_scb(struct scb *scb) +{ + if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) { + scb->io_ctx->result |= CAM_DEV_QFRZN << 16; + scb->platform_data->dev->qfrozen++; + } +} + +void ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, + struct ahd_devinfo *devinfo, ahd_queue_alg); +int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, + char channel, int lun, u_int tag, + role_t role, uint32_t status); +irqreturn_t + ahd_linux_isr(int irq, void *dev_id); +void ahd_done(struct ahd_softc*, struct scb*); +void ahd_send_async(struct ahd_softc *, char channel, + u_int target, u_int lun, ac_code); +void ahd_print_path(struct ahd_softc *, struct scb *); + +#ifdef CONFIG_PCI +#define AHD_PCI_CONFIG 1 +#else +#define AHD_PCI_CONFIG 0 +#endif +#define bootverbose aic79xx_verbose +extern uint32_t aic79xx_verbose; + +#endif /* _AIC79XX_LINUX_H_ */ |