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/aic7xxx/aic79xx_osm_pci.c | 378 +++++++++++++++++++++++++++++++++ 1 file changed, 378 insertions(+) create mode 100644 drivers/scsi/aic7xxx/aic79xx_osm_pci.c (limited to 'drivers/scsi/aic7xxx/aic79xx_osm_pci.c') diff --git a/drivers/scsi/aic7xxx/aic79xx_osm_pci.c b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c new file mode 100644 index 000000000..b92e2e3c3 --- /dev/null +++ b/drivers/scsi/aic7xxx/aic79xx_osm_pci.c @@ -0,0 +1,378 @@ +/* + * Linux driver attachment glue for PCI based U320 controllers. + * + * 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_pci.c#25 $ + */ + +#include "aic79xx_osm.h" +#include "aic79xx_inline.h" +#include "aic79xx_pci.h" + +/* Define the macro locally since it's different for different class of chips. + */ +#define ID(x) \ + ID2C(x), \ + ID2C(IDIROC(x)) + +static const struct pci_device_id ahd_linux_pci_id_table[] = { + /* aic7901 based controllers */ + ID(ID_AHA_29320A), + ID(ID_AHA_29320ALP), + ID(ID_AHA_29320LPE), + /* aic7902 based controllers */ + ID(ID_AHA_29320), + ID(ID_AHA_29320B), + ID(ID_AHA_29320LP), + ID(ID_AHA_39320), + ID(ID_AHA_39320_B), + ID(ID_AHA_39320A), + ID(ID_AHA_39320D), + ID(ID_AHA_39320D_HP), + ID(ID_AHA_39320D_B), + ID(ID_AHA_39320D_B_HP), + /* Generic chip probes for devices we don't know exactly. */ + ID16(ID_AIC7901 & ID_9005_GENERIC_MASK), + ID(ID_AIC7901A & ID_DEV_VENDOR_MASK), + ID16(ID_AIC7902 & ID_9005_GENERIC_MASK), + { 0 } +}; + +MODULE_DEVICE_TABLE(pci, ahd_linux_pci_id_table); + +static int __maybe_unused +ahd_linux_pci_dev_suspend(struct device *dev) +{ + struct ahd_softc *ahd = dev_get_drvdata(dev); + int rc; + + if ((rc = ahd_suspend(ahd))) + return rc; + + ahd_pci_suspend(ahd); + + return rc; +} + +static int __maybe_unused +ahd_linux_pci_dev_resume(struct device *dev) +{ + struct ahd_softc *ahd = dev_get_drvdata(dev); + + ahd_pci_resume(ahd); + + ahd_resume(ahd); + + return 0; +} + +static void +ahd_linux_pci_dev_remove(struct pci_dev *pdev) +{ + struct ahd_softc *ahd = pci_get_drvdata(pdev); + u_long s; + + if (ahd->platform_data && ahd->platform_data->host) + scsi_remove_host(ahd->platform_data->host); + + ahd_lock(ahd, &s); + ahd_intr_enable(ahd, FALSE); + ahd_unlock(ahd, &s); + ahd_free(ahd); +} + +static void +ahd_linux_pci_inherit_flags(struct ahd_softc *ahd) +{ + struct pci_dev *pdev = ahd->dev_softc, *master_pdev; + unsigned int master_devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0); + + master_pdev = pci_get_slot(pdev->bus, master_devfn); + if (master_pdev) { + struct ahd_softc *master = pci_get_drvdata(master_pdev); + if (master) { + ahd->flags &= ~AHD_BIOS_ENABLED; + ahd->flags |= master->flags & AHD_BIOS_ENABLED; + } else + printk(KERN_ERR "aic79xx: no multichannel peer found!\n"); + pci_dev_put(master_pdev); + } +} + +static int +ahd_linux_pci_dev_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + char buf[80]; + struct ahd_softc *ahd; + ahd_dev_softc_t pci; + const struct ahd_pci_identity *entry; + char *name; + int error; + struct device *dev = &pdev->dev; + + pci = pdev; + entry = ahd_find_pci_device(pci); + if (entry == NULL) + return (-ENODEV); + + /* + * Allocate a softc for this card and + * set it up for attachment by our + * common detect routine. + */ + sprintf(buf, "ahd_pci:%d:%d:%d", + ahd_get_pci_bus(pci), + ahd_get_pci_slot(pci), + ahd_get_pci_function(pci)); + name = kstrdup(buf, GFP_ATOMIC); + if (name == NULL) + return (-ENOMEM); + ahd = ahd_alloc(NULL, name); + if (ahd == NULL) + return (-ENOMEM); + if (pci_enable_device(pdev)) { + ahd_free(ahd); + return (-ENODEV); + } + pci_set_master(pdev); + + if (sizeof(dma_addr_t) > 4) { + const u64 required_mask = dma_get_required_mask(dev); + + if (required_mask > DMA_BIT_MASK(39) && + dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) + ahd->flags |= AHD_64BIT_ADDRESSING; + else if (required_mask > DMA_BIT_MASK(32) && + dma_set_mask(dev, DMA_BIT_MASK(39)) == 0) + ahd->flags |= AHD_39BIT_ADDRESSING; + else + dma_set_mask(dev, DMA_BIT_MASK(32)); + } else { + dma_set_mask(dev, DMA_BIT_MASK(32)); + } + ahd->dev_softc = pci; + error = ahd_pci_config(ahd, entry); + if (error != 0) { + ahd_free(ahd); + return (-error); + } + + /* + * Second Function PCI devices need to inherit some + * * settings from function 0. + */ + if ((ahd->features & AHD_MULTI_FUNC) && PCI_FUNC(pdev->devfn) != 0) + ahd_linux_pci_inherit_flags(ahd); + + pci_set_drvdata(pdev, ahd); + + ahd_linux_register_host(ahd, &aic79xx_driver_template); + return (0); +} + +static SIMPLE_DEV_PM_OPS(ahd_linux_pci_dev_pm_ops, + ahd_linux_pci_dev_suspend, + ahd_linux_pci_dev_resume); + +static struct pci_driver aic79xx_pci_driver = { + .name = "aic79xx", + .probe = ahd_linux_pci_dev_probe, + .driver.pm = &ahd_linux_pci_dev_pm_ops, + .remove = ahd_linux_pci_dev_remove, + .id_table = ahd_linux_pci_id_table +}; + +int +ahd_linux_pci_init(void) +{ + return pci_register_driver(&aic79xx_pci_driver); +} + +void +ahd_linux_pci_exit(void) +{ + pci_unregister_driver(&aic79xx_pci_driver); +} + +static int +ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd, resource_size_t *base, + resource_size_t *base2) +{ + *base = pci_resource_start(ahd->dev_softc, 0); + /* + * This is really the 3rd bar and should be at index 2, + * but the Linux PCI code doesn't know how to "count" 64bit + * bars. + */ + *base2 = pci_resource_start(ahd->dev_softc, 3); + if (*base == 0 || *base2 == 0) + return (ENOMEM); + if (!request_region(*base, 256, "aic79xx")) + return (ENOMEM); + if (!request_region(*base2, 256, "aic79xx")) { + release_region(*base, 256); + return (ENOMEM); + } + return (0); +} + +static int +ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd, + resource_size_t *bus_addr, + uint8_t __iomem **maddr) +{ + resource_size_t start; + resource_size_t base_page; + u_long base_offset; + int error = 0; + + if (aic79xx_allow_memio == 0) + return (ENOMEM); + + if ((ahd->bugs & AHD_PCIX_MMAPIO_BUG) != 0) + return (ENOMEM); + + start = pci_resource_start(ahd->dev_softc, 1); + base_page = start & PAGE_MASK; + base_offset = start - base_page; + if (start != 0) { + *bus_addr = start; + if (!request_mem_region(start, 0x1000, "aic79xx")) + error = ENOMEM; + if (!error) { + *maddr = ioremap(base_page, base_offset + 512); + if (*maddr == NULL) { + error = ENOMEM; + release_mem_region(start, 0x1000); + } else + *maddr += base_offset; + } + } else + error = ENOMEM; + return (error); +} + +int +ahd_pci_map_registers(struct ahd_softc *ahd) +{ + uint32_t command; + resource_size_t base; + uint8_t __iomem *maddr; + int error; + + /* + * If its allowed, we prefer memory mapped access. + */ + command = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, 4); + command &= ~(PCIM_CMD_PORTEN|PCIM_CMD_MEMEN); + base = 0; + maddr = NULL; + error = ahd_linux_pci_reserve_mem_region(ahd, &base, &maddr); + if (error == 0) { + ahd->platform_data->mem_busaddr = base; + ahd->tags[0] = BUS_SPACE_MEMIO; + ahd->bshs[0].maddr = maddr; + ahd->tags[1] = BUS_SPACE_MEMIO; + ahd->bshs[1].maddr = maddr + 0x100; + ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, + command | PCIM_CMD_MEMEN, 4); + + if (ahd_pci_test_register_access(ahd) != 0) { + + printk("aic79xx: PCI Device %d:%d:%d " + "failed memory mapped test. Using PIO.\n", + ahd_get_pci_bus(ahd->dev_softc), + ahd_get_pci_slot(ahd->dev_softc), + ahd_get_pci_function(ahd->dev_softc)); + iounmap(maddr); + release_mem_region(ahd->platform_data->mem_busaddr, + 0x1000); + ahd->bshs[0].maddr = NULL; + maddr = NULL; + } else + command |= PCIM_CMD_MEMEN; + } else if (bootverbose) { + printk("aic79xx: PCI%d:%d:%d MEM region 0x%llx " + "unavailable. Cannot memory map device.\n", + ahd_get_pci_bus(ahd->dev_softc), + ahd_get_pci_slot(ahd->dev_softc), + ahd_get_pci_function(ahd->dev_softc), + (unsigned long long)base); + } + + if (maddr == NULL) { + resource_size_t base2; + + error = ahd_linux_pci_reserve_io_regions(ahd, &base, &base2); + if (error == 0) { + ahd->tags[0] = BUS_SPACE_PIO; + ahd->tags[1] = BUS_SPACE_PIO; + ahd->bshs[0].ioport = (u_long)base; + ahd->bshs[1].ioport = (u_long)base2; + command |= PCIM_CMD_PORTEN; + } else { + printk("aic79xx: PCI%d:%d:%d IO regions 0x%llx and " + "0x%llx unavailable. Cannot map device.\n", + ahd_get_pci_bus(ahd->dev_softc), + ahd_get_pci_slot(ahd->dev_softc), + ahd_get_pci_function(ahd->dev_softc), + (unsigned long long)base, + (unsigned long long)base2); + } + } + ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, 4); + return (error); +} + +int +ahd_pci_map_int(struct ahd_softc *ahd) +{ + int error; + + error = request_irq(ahd->dev_softc->irq, ahd_linux_isr, + IRQF_SHARED, "aic79xx", ahd); + if (!error) + ahd->platform_data->irq = ahd->dev_softc->irq; + + return (-error); +} + +void +ahd_power_state_change(struct ahd_softc *ahd, ahd_power_state new_state) +{ + pci_set_power_state(ahd->dev_softc, new_state); +} -- cgit v1.2.3