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/mtd/tests/pagetest.c | 461 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 461 insertions(+) create mode 100644 drivers/mtd/tests/pagetest.c (limited to 'drivers/mtd/tests/pagetest.c') diff --git a/drivers/mtd/tests/pagetest.c b/drivers/mtd/tests/pagetest.c new file mode 100644 index 000000000..8eb40b6e6 --- /dev/null +++ b/drivers/mtd/tests/pagetest.c @@ -0,0 +1,461 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2006-2008 Nokia Corporation + * + * Test page read and write on MTD device. + * + * Author: Adrian Hunter + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mtd_test.h" + +static int dev = -EINVAL; +module_param(dev, int, S_IRUGO); +MODULE_PARM_DESC(dev, "MTD device number to use"); + +static struct mtd_info *mtd; +static unsigned char *twopages; +static unsigned char *writebuf; +static unsigned char *boundary; +static unsigned char *bbt; + +static int pgsize; +static int bufsize; +static int ebcnt; +static int pgcnt; +static int errcnt; +static struct rnd_state rnd_state; + +static int write_eraseblock(int ebnum) +{ + loff_t addr = (loff_t)ebnum * mtd->erasesize; + + prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); + cond_resched(); + return mtdtest_write(mtd, addr, mtd->erasesize, writebuf); +} + +static int verify_eraseblock(int ebnum) +{ + uint32_t j; + int err = 0, i; + loff_t addr0, addrn; + loff_t addr = (loff_t)ebnum * mtd->erasesize; + + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) + addr0 += mtd->erasesize; + + addrn = mtd->size; + for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i) + addrn -= mtd->erasesize; + + prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); + for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) { + /* Do a read to set the internal dataRAMs to different data */ + err = mtdtest_read(mtd, addr0, bufsize, twopages); + if (err) + return err; + err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages); + if (err) + return err; + memset(twopages, 0, bufsize); + err = mtdtest_read(mtd, addr, bufsize, twopages); + if (err) + break; + if (memcmp(twopages, writebuf + (j * pgsize), bufsize)) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + errcnt += 1; + } + } + /* Check boundary between eraseblocks */ + if (addr <= addrn - pgsize - pgsize && !bbt[ebnum + 1]) { + struct rnd_state old_state = rnd_state; + + /* Do a read to set the internal dataRAMs to different data */ + err = mtdtest_read(mtd, addr0, bufsize, twopages); + if (err) + return err; + err = mtdtest_read(mtd, addrn - bufsize, bufsize, twopages); + if (err) + return err; + memset(twopages, 0, bufsize); + err = mtdtest_read(mtd, addr, bufsize, twopages); + if (err) + return err; + memcpy(boundary, writebuf + mtd->erasesize - pgsize, pgsize); + prandom_bytes_state(&rnd_state, boundary + pgsize, pgsize); + if (memcmp(twopages, boundary, bufsize)) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + errcnt += 1; + } + rnd_state = old_state; + } + return err; +} + +static int crosstest(void) +{ + int err = 0, i; + loff_t addr, addr0, addrn; + unsigned char *pp1, *pp2, *pp3, *pp4; + + pr_info("crosstest\n"); + pp1 = kcalloc(pgsize, 4, GFP_KERNEL); + if (!pp1) + return -ENOMEM; + pp2 = pp1 + pgsize; + pp3 = pp2 + pgsize; + pp4 = pp3 + pgsize; + + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) + addr0 += mtd->erasesize; + + addrn = mtd->size; + for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i) + addrn -= mtd->erasesize; + + /* Read 2nd-to-last page to pp1 */ + addr = addrn - pgsize - pgsize; + err = mtdtest_read(mtd, addr, pgsize, pp1); + if (err) { + kfree(pp1); + return err; + } + + /* Read 3rd-to-last page to pp1 */ + addr = addrn - pgsize - pgsize - pgsize; + err = mtdtest_read(mtd, addr, pgsize, pp1); + if (err) { + kfree(pp1); + return err; + } + + /* Read first page to pp2 */ + addr = addr0; + pr_info("reading page at %#llx\n", (long long)addr); + err = mtdtest_read(mtd, addr, pgsize, pp2); + if (err) { + kfree(pp1); + return err; + } + + /* Read last page to pp3 */ + addr = addrn - pgsize; + pr_info("reading page at %#llx\n", (long long)addr); + err = mtdtest_read(mtd, addr, pgsize, pp3); + if (err) { + kfree(pp1); + return err; + } + + /* Read first page again to pp4 */ + addr = addr0; + pr_info("reading page at %#llx\n", (long long)addr); + err = mtdtest_read(mtd, addr, pgsize, pp4); + if (err) { + kfree(pp1); + return err; + } + + /* pp2 and pp4 should be the same */ + pr_info("verifying pages read at %#llx match\n", + (long long)addr0); + if (memcmp(pp2, pp4, pgsize)) { + pr_err("verify failed!\n"); + errcnt += 1; + } else if (!err) + pr_info("crosstest ok\n"); + kfree(pp1); + return err; +} + +static int erasecrosstest(void) +{ + int err = 0, i, ebnum, ebnum2; + loff_t addr0; + char *readbuf = twopages; + + pr_info("erasecrosstest\n"); + + ebnum = 0; + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) { + addr0 += mtd->erasesize; + ebnum += 1; + } + + ebnum2 = ebcnt - 1; + while (ebnum2 && bbt[ebnum2]) + ebnum2 -= 1; + + pr_info("erasing block %d\n", ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); + if (err) + return err; + + pr_info("writing 1st page of block %d\n", ebnum); + prandom_bytes_state(&rnd_state, writebuf, pgsize); + strcpy(writebuf, "There is no data like this!"); + err = mtdtest_write(mtd, addr0, pgsize, writebuf); + if (err) + return err; + + pr_info("reading 1st page of block %d\n", ebnum); + memset(readbuf, 0, pgsize); + err = mtdtest_read(mtd, addr0, pgsize, readbuf); + if (err) + return err; + + pr_info("verifying 1st page of block %d\n", ebnum); + if (memcmp(writebuf, readbuf, pgsize)) { + pr_err("verify failed!\n"); + errcnt += 1; + return -1; + } + + pr_info("erasing block %d\n", ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); + if (err) + return err; + + pr_info("writing 1st page of block %d\n", ebnum); + prandom_bytes_state(&rnd_state, writebuf, pgsize); + strcpy(writebuf, "There is no data like this!"); + err = mtdtest_write(mtd, addr0, pgsize, writebuf); + if (err) + return err; + + pr_info("erasing block %d\n", ebnum2); + err = mtdtest_erase_eraseblock(mtd, ebnum2); + if (err) + return err; + + pr_info("reading 1st page of block %d\n", ebnum); + memset(readbuf, 0, pgsize); + err = mtdtest_read(mtd, addr0, pgsize, readbuf); + if (err) + return err; + + pr_info("verifying 1st page of block %d\n", ebnum); + if (memcmp(writebuf, readbuf, pgsize)) { + pr_err("verify failed!\n"); + errcnt += 1; + return -1; + } + + if (!err) + pr_info("erasecrosstest ok\n"); + return err; +} + +static int erasetest(void) +{ + int err = 0, i, ebnum, ok = 1; + loff_t addr0; + + pr_info("erasetest\n"); + + ebnum = 0; + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) { + addr0 += mtd->erasesize; + ebnum += 1; + } + + pr_info("erasing block %d\n", ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); + if (err) + return err; + + pr_info("writing 1st page of block %d\n", ebnum); + prandom_bytes_state(&rnd_state, writebuf, pgsize); + err = mtdtest_write(mtd, addr0, pgsize, writebuf); + if (err) + return err; + + pr_info("erasing block %d\n", ebnum); + err = mtdtest_erase_eraseblock(mtd, ebnum); + if (err) + return err; + + pr_info("reading 1st page of block %d\n", ebnum); + err = mtdtest_read(mtd, addr0, pgsize, twopages); + if (err) + return err; + + pr_info("verifying 1st page of block %d is all 0xff\n", + ebnum); + for (i = 0; i < pgsize; ++i) + if (twopages[i] != 0xff) { + pr_err("verifying all 0xff failed at %d\n", + i); + errcnt += 1; + ok = 0; + break; + } + + if (ok && !err) + pr_info("erasetest ok\n"); + + return err; +} + +static int __init mtd_pagetest_init(void) +{ + int err = 0; + uint64_t tmp; + uint32_t i; + + printk(KERN_INFO "\n"); + printk(KERN_INFO "=================================================\n"); + + if (dev < 0) { + pr_info("Please specify a valid mtd-device via module parameter\n"); + pr_crit("CAREFUL: This test wipes all data on the specified MTD device!\n"); + return -EINVAL; + } + + pr_info("MTD device: %d\n", dev); + + mtd = get_mtd_device(NULL, dev); + if (IS_ERR(mtd)) { + err = PTR_ERR(mtd); + pr_err("error: cannot get MTD device\n"); + return err; + } + + if (!mtd_type_is_nand(mtd)) { + pr_info("this test requires NAND flash\n"); + goto out; + } + + tmp = mtd->size; + do_div(tmp, mtd->erasesize); + ebcnt = tmp; + pgcnt = mtd->erasesize / mtd->writesize; + pgsize = mtd->writesize; + + pr_info("MTD device size %llu, eraseblock size %u, " + "page size %u, count of eraseblocks %u, pages per " + "eraseblock %u, OOB size %u\n", + (unsigned long long)mtd->size, mtd->erasesize, + pgsize, ebcnt, pgcnt, mtd->oobsize); + + err = -ENOMEM; + bufsize = pgsize * 2; + writebuf = kmalloc(mtd->erasesize, GFP_KERNEL); + if (!writebuf) + goto out; + twopages = kmalloc(bufsize, GFP_KERNEL); + if (!twopages) + goto out; + boundary = kmalloc(bufsize, GFP_KERNEL); + if (!boundary) + goto out; + + bbt = kzalloc(ebcnt, GFP_KERNEL); + if (!bbt) + goto out; + err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt); + if (err) + goto out; + + /* Erase all eraseblocks */ + pr_info("erasing whole device\n"); + err = mtdtest_erase_good_eraseblocks(mtd, bbt, 0, ebcnt); + if (err) + goto out; + pr_info("erased %u eraseblocks\n", ebcnt); + + /* Write all eraseblocks */ + prandom_seed_state(&rnd_state, 1); + pr_info("writing whole device\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = write_eraseblock(i); + if (err) + goto out; + if (i % 256 == 0) + pr_info("written up to eraseblock %u\n", i); + + err = mtdtest_relax(); + if (err) + goto out; + } + pr_info("written %u eraseblocks\n", i); + + /* Check all eraseblocks */ + prandom_seed_state(&rnd_state, 1); + pr_info("verifying all eraseblocks\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = verify_eraseblock(i); + if (err) + goto out; + if (i % 256 == 0) + pr_info("verified up to eraseblock %u\n", i); + + err = mtdtest_relax(); + if (err) + goto out; + } + pr_info("verified %u eraseblocks\n", i); + + err = crosstest(); + if (err) + goto out; + + if (ebcnt > 1) { + err = erasecrosstest(); + if (err) + goto out; + } else { + pr_info("skipping erasecrosstest, 2 erase blocks needed\n"); + } + + err = erasetest(); + if (err) + goto out; + + pr_info("finished with %d errors\n", errcnt); +out: + + kfree(bbt); + kfree(boundary); + kfree(twopages); + kfree(writebuf); + put_mtd_device(mtd); + if (err) + pr_info("error %d occurred\n", err); + printk(KERN_INFO "=================================================\n"); + return err; +} +module_init(mtd_pagetest_init); + +static void __exit mtd_pagetest_exit(void) +{ + return; +} +module_exit(mtd_pagetest_exit); + +MODULE_DESCRIPTION("NAND page test"); +MODULE_AUTHOR("Adrian Hunter"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3