From bda2e63a508b7f728c2386c9a0de234113e8b809 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 15 Nov 2024 07:14:36 -0800 Subject: [PATCH 01/16] bnxt_en: Add a new ethtool -W dump flag Add a new ethtool -W dump flag (2) to include driver coredump segments. This patch adds the host backing store context memory pages used by the chip and FW to store various states to the coredump. The pages for each context memory type is dumped into a separate coredump segment. Reviewed-by: Andy Gospodarek Reviewed-by: Selvin Thyparampil Xavier Reviewed-by: Shruti Parab Reviewed-by: Kalesh AP Reviewed-by: Saravanan Vajravel Reviewed-by: Kashyap Desai Signed-off-by: Michael Chan Link: https://patch.msgid.link/20241115151438.550106-11-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + .../ethernet/broadcom/bnxt/bnxt_coredump.c | 77 +++++++++++++++++-- .../ethernet/broadcom/bnxt/bnxt_coredump.h | 15 ++++ .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 4 +- 4 files changed, 90 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 2d63490b9f14..231e38933984 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -2662,6 +2662,7 @@ struct bnxt { u16 dump_flag; #define BNXT_DUMP_LIVE 0 #define BNXT_DUMP_CRASH 1 +#define BNXT_DUMP_DRIVER 2 struct bpf_prog *xdp_prog; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c index 4dfc26cfc979..ff92443db01b 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c @@ -15,6 +15,18 @@ #include "bnxt_hwrm.h" #include "bnxt_coredump.h" +static const u16 bnxt_bstore_to_seg_id[] = { + [BNXT_CTX_QP] = BNXT_CTX_MEM_SEG_QP, + [BNXT_CTX_SRQ] = BNXT_CTX_MEM_SEG_SRQ, + [BNXT_CTX_CQ] = BNXT_CTX_MEM_SEG_CQ, + [BNXT_CTX_VNIC] = BNXT_CTX_MEM_SEG_VNIC, + [BNXT_CTX_STAT] = BNXT_CTX_MEM_SEG_STAT, + [BNXT_CTX_STQM] = BNXT_CTX_MEM_SEG_STQM, + [BNXT_CTX_FTQM] = BNXT_CTX_MEM_SEG_FTQM, + [BNXT_CTX_MRAV] = BNXT_CTX_MEM_SEG_MRAV, + [BNXT_CTX_TIM] = BNXT_CTX_MEM_SEG_TIM, +}; + static int bnxt_hwrm_dbg_dma_data(struct bnxt *bp, void *msg, struct bnxt_hwrm_dbg_dma_info *info) { @@ -267,7 +279,47 @@ bnxt_fill_coredump_record(struct bnxt *bp, struct bnxt_coredump_record *record, record->ioctl_high_version = 0; } -static int __bnxt_get_coredump(struct bnxt *bp, void *buf, u32 *dump_len) +static u32 bnxt_get_ctx_coredump(struct bnxt *bp, void *buf, u32 offset, + u32 *segs) +{ + struct bnxt_coredump_segment_hdr seg_hdr; + struct bnxt_ctx_mem_info *ctx = bp->ctx; + u32 comp_id = BNXT_DRV_COMP_ID; + void *data = NULL; + size_t len = 0; + u16 type; + + *segs = 0; + if (!ctx) + return 0; + + if (buf) + buf += offset; + for (type = 0 ; type <= BNXT_CTX_TIM; type++) { + struct bnxt_ctx_mem_type *ctxm = &ctx->ctx_arr[type]; + u32 seg_id = bnxt_bstore_to_seg_id[type]; + size_t seg_len; + + if (!ctxm->entry_size || !ctxm->pg_info || !seg_id) + continue; + + if (buf) + data = buf + BNXT_SEG_HDR_LEN; + seg_len = bnxt_copy_ctx_mem(bp, ctxm, data, 0); + if (buf) { + bnxt_fill_coredump_seg_hdr(bp, &seg_hdr, NULL, seg_len, + 0, 0, 0, comp_id, seg_id); + memcpy(buf, &seg_hdr, BNXT_SEG_HDR_LEN); + buf += BNXT_SEG_HDR_LEN + seg_len; + } + len += BNXT_SEG_HDR_LEN + seg_len; + *segs += 1; + } + return len; +} + +static int __bnxt_get_coredump(struct bnxt *bp, u16 dump_type, void *buf, + u32 *dump_len) { u32 ver_get_resp_len = sizeof(struct hwrm_ver_get_output); u32 offset = 0, seg_hdr_len, seg_record_len, buf_len = 0; @@ -298,6 +350,18 @@ static int __bnxt_get_coredump(struct bnxt *bp, void *buf, u32 *dump_len) offset += ver_get_resp_len; } + if (dump_type == BNXT_DUMP_DRIVER) { + u32 drv_len, segs = 0; + + drv_len = bnxt_get_ctx_coredump(bp, buf, offset, &segs); + *dump_len += drv_len; + offset += drv_len; + if (buf) + coredump.total_segs += segs; + goto err; + } + + seg_record_len = sizeof(*seg_record); rc = bnxt_hwrm_dbg_coredump_list(bp, &coredump); if (rc) { netdev_err(bp->dev, "Failed to get coredump segment list\n"); @@ -442,7 +506,7 @@ int bnxt_get_coredump(struct bnxt *bp, u16 dump_type, void *buf, u32 *dump_len) else return -EOPNOTSUPP; } else { - return __bnxt_get_coredump(bp, buf, dump_len); + return __bnxt_get_coredump(bp, dump_type, buf, dump_len); } } @@ -512,9 +576,12 @@ u32 bnxt_get_coredump_length(struct bnxt *bp, u16 dump_type) return bp->fw_crash_len; } - if (bnxt_hwrm_get_dump_len(bp, dump_type, &len)) { - if (dump_type != BNXT_DUMP_CRASH) - __bnxt_get_coredump(bp, NULL, &len); + if (dump_type != BNXT_DUMP_DRIVER) { + if (!bnxt_hwrm_get_dump_len(bp, dump_type, &len)) + return len; } + if (dump_type != BNXT_DUMP_CRASH) + __bnxt_get_coredump(bp, dump_type, NULL, &len); + return len; } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h index f573e55f7e62..3a6084a51be8 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h @@ -69,12 +69,27 @@ struct bnxt_coredump_record { }; #define BNXT_VER_GET_COMP_ID 2 +#define BNXT_DRV_COMP_ID 0xd + +#define BNXT_CTX_MEM_SEG_ID_START 0x200 + +#define BNXT_CTX_MEM_SEG_QP (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_QP) +#define BNXT_CTX_MEM_SEG_SRQ (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_SRQ) +#define BNXT_CTX_MEM_SEG_CQ (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_CQ) +#define BNXT_CTX_MEM_SEG_VNIC (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_VNIC) +#define BNXT_CTX_MEM_SEG_STAT (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_STAT) +#define BNXT_CTX_MEM_SEG_STQM (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_STQM) +#define BNXT_CTX_MEM_SEG_FTQM (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_FTQM) +#define BNXT_CTX_MEM_SEG_MRAV (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_MRAV) +#define BNXT_CTX_MEM_SEG_TIM (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_TIM) #define BNXT_CRASH_DUMP_LEN (8 << 20) #define COREDUMP_LIST_BUF_LEN 2048 #define COREDUMP_RETRIEVE_BUF_LEN 4096 +#define BNXT_SEG_HDR_LEN sizeof(struct bnxt_coredump_segment_hdr) + struct bnxt_coredump { void *data; int data_size; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 061a40b1974b..2f4987ec7464 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -4984,8 +4984,8 @@ static int bnxt_set_dump(struct net_device *dev, struct ethtool_dump *dump) { struct bnxt *bp = netdev_priv(dev); - if (dump->flag > BNXT_DUMP_CRASH) { - netdev_info(dev, "Supports only Live(0) and Crash(1) dumps.\n"); + if (dump->flag > BNXT_DUMP_DRIVER) { + netdev_info(dev, "Supports only Live(0), Crash(1), Driver(2) dumps.\n"); return -EINVAL; } -- 2.50.1 From 3c2179e66355a2f85ff86a73719f0ce7dcf4a226 Mon Sep 17 00:00:00 2001 From: Shruti Parab Date: Fri, 15 Nov 2024 07:14:37 -0800 Subject: [PATCH 02/16] bnxt_en: Add FW trace coredump segments to the coredump The FW trace coredump segments are very similar to the context memory segments in the previous patch. The main difference is to call HWRM_DBG_LOG_BUFFER_FLUSH to flush the FW data to host memory and to include an additional record in the coredump that contains the head and tail information of the trace data. Reviewed-by: Hongguang Gao Signed-off-by: Shruti Parab Signed-off-by: Michael Chan Link: https://patch.msgid.link/20241115151438.550106-12-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- .../ethernet/broadcom/bnxt/bnxt_coredump.c | 75 +++++++++++++++++-- .../ethernet/broadcom/bnxt/bnxt_coredump.h | 21 ++++++ 2 files changed, 90 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c index ff92443db01b..7236d8e548ab 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c @@ -25,8 +25,40 @@ static const u16 bnxt_bstore_to_seg_id[] = { [BNXT_CTX_FTQM] = BNXT_CTX_MEM_SEG_FTQM, [BNXT_CTX_MRAV] = BNXT_CTX_MEM_SEG_MRAV, [BNXT_CTX_TIM] = BNXT_CTX_MEM_SEG_TIM, + [BNXT_CTX_SRT] = BNXT_CTX_MEM_SEG_SRT, + [BNXT_CTX_SRT2] = BNXT_CTX_MEM_SEG_SRT2, + [BNXT_CTX_CRT] = BNXT_CTX_MEM_SEG_CRT, + [BNXT_CTX_CRT2] = BNXT_CTX_MEM_SEG_CRT2, + [BNXT_CTX_RIGP0] = BNXT_CTX_MEM_SEG_RIGP0, + [BNXT_CTX_L2HWRM] = BNXT_CTX_MEM_SEG_L2HWRM, + [BNXT_CTX_REHWRM] = BNXT_CTX_MEM_SEG_REHWRM, + [BNXT_CTX_CA0] = BNXT_CTX_MEM_SEG_CA0, + [BNXT_CTX_CA1] = BNXT_CTX_MEM_SEG_CA1, + [BNXT_CTX_CA2] = BNXT_CTX_MEM_SEG_CA2, + [BNXT_CTX_RIGP1] = BNXT_CTX_MEM_SEG_RIGP1, }; +static int bnxt_dbg_hwrm_log_buffer_flush(struct bnxt *bp, u16 type, u32 flags, + u32 *offset) +{ + struct hwrm_dbg_log_buffer_flush_output *resp; + struct hwrm_dbg_log_buffer_flush_input *req; + int rc; + + rc = hwrm_req_init(bp, req, HWRM_DBG_LOG_BUFFER_FLUSH); + if (rc) + return rc; + + req->flags = cpu_to_le32(flags); + req->type = cpu_to_le16(type); + resp = hwrm_req_hold(bp, req); + rc = hwrm_req_send(bp, req); + if (!rc) + *offset = le32_to_cpu(resp->current_buffer_offset); + hwrm_req_drop(bp, req); + return rc; +} + static int bnxt_hwrm_dbg_dma_data(struct bnxt *bp, void *msg, struct bnxt_hwrm_dbg_dma_info *info) { @@ -279,9 +311,29 @@ bnxt_fill_coredump_record(struct bnxt *bp, struct bnxt_coredump_record *record, record->ioctl_high_version = 0; } +static void bnxt_fill_drv_seg_record(struct bnxt *bp, + struct bnxt_driver_segment_record *record, + struct bnxt_ctx_mem_type *ctxm, u16 type) +{ + struct bnxt_bs_trace_info *bs_trace = &bp->bs_trace[type]; + u32 offset = 0; + int rc = 0; + + rc = bnxt_dbg_hwrm_log_buffer_flush(bp, type, 0, &offset); + if (rc) + return; + + bnxt_bs_trace_check_wrap(bs_trace, offset); + record->max_entries = cpu_to_le32(ctxm->max_entries); + record->entry_size = cpu_to_le32(ctxm->entry_size); + record->offset = cpu_to_le32(bs_trace->last_offset); + record->wrapped = bs_trace->wrapped; +} + static u32 bnxt_get_ctx_coredump(struct bnxt *bp, void *buf, u32 offset, u32 *segs) { + struct bnxt_driver_segment_record record = {}; struct bnxt_coredump_segment_hdr seg_hdr; struct bnxt_ctx_mem_info *ctx = bp->ctx; u32 comp_id = BNXT_DRV_COMP_ID; @@ -295,22 +347,33 @@ static u32 bnxt_get_ctx_coredump(struct bnxt *bp, void *buf, u32 offset, if (buf) buf += offset; - for (type = 0 ; type <= BNXT_CTX_TIM; type++) { + for (type = 0 ; type <= BNXT_CTX_RIGP1; type++) { struct bnxt_ctx_mem_type *ctxm = &ctx->ctx_arr[type]; + bool trace = bnxt_bs_trace_avail(bp, type); u32 seg_id = bnxt_bstore_to_seg_id[type]; - size_t seg_len; + size_t seg_len, extra_hlen = 0; - if (!ctxm->entry_size || !ctxm->pg_info || !seg_id) + if (!ctxm->mem_valid || !seg_id) continue; + if (trace) + extra_hlen = BNXT_SEG_RCD_LEN; if (buf) - data = buf + BNXT_SEG_HDR_LEN; - seg_len = bnxt_copy_ctx_mem(bp, ctxm, data, 0); + data = buf + BNXT_SEG_HDR_LEN + extra_hlen; + seg_len = bnxt_copy_ctx_mem(bp, ctxm, data, 0) + extra_hlen; if (buf) { bnxt_fill_coredump_seg_hdr(bp, &seg_hdr, NULL, seg_len, 0, 0, 0, comp_id, seg_id); memcpy(buf, &seg_hdr, BNXT_SEG_HDR_LEN); - buf += BNXT_SEG_HDR_LEN + seg_len; + buf += BNXT_SEG_HDR_LEN; + if (trace) { + u16 trace_type = bnxt_bstore_to_trace[type]; + + bnxt_fill_drv_seg_record(bp, &record, ctxm, + trace_type); + memcpy(buf, &record, BNXT_SEG_RCD_LEN); + } + buf += seg_len; } len += BNXT_SEG_HDR_LEN + seg_len; *segs += 1; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h index 3a6084a51be8..d1cd6387f3ab 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h @@ -68,6 +68,14 @@ struct bnxt_coredump_record { __le16 rsvd3[313]; }; +struct bnxt_driver_segment_record { + __le32 max_entries; + __le32 entry_size; + __le32 offset; + __u8 wrapped:1; + __u8 unused[3]; +}; + #define BNXT_VER_GET_COMP_ID 2 #define BNXT_DRV_COMP_ID 0xd @@ -83,12 +91,25 @@ struct bnxt_coredump_record { #define BNXT_CTX_MEM_SEG_MRAV (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_MRAV) #define BNXT_CTX_MEM_SEG_TIM (BNXT_CTX_MEM_SEG_ID_START + BNXT_CTX_TIM) +#define BNXT_CTX_MEM_SEG_SRT 0x1 +#define BNXT_CTX_MEM_SEG_SRT2 0x2 +#define BNXT_CTX_MEM_SEG_CRT 0x3 +#define BNXT_CTX_MEM_SEG_CRT2 0x4 +#define BNXT_CTX_MEM_SEG_RIGP0 0x5 +#define BNXT_CTX_MEM_SEG_L2HWRM 0x6 +#define BNXT_CTX_MEM_SEG_REHWRM 0x7 +#define BNXT_CTX_MEM_SEG_CA0 0x8 +#define BNXT_CTX_MEM_SEG_CA1 0x9 +#define BNXT_CTX_MEM_SEG_CA2 0xa +#define BNXT_CTX_MEM_SEG_RIGP1 0xb + #define BNXT_CRASH_DUMP_LEN (8 << 20) #define COREDUMP_LIST_BUF_LEN 2048 #define COREDUMP_RETRIEVE_BUF_LEN 4096 #define BNXT_SEG_HDR_LEN sizeof(struct bnxt_coredump_segment_hdr) +#define BNXT_SEG_RCD_LEN sizeof(struct bnxt_driver_segment_record) struct bnxt_coredump { void *data; -- 2.50.1 From 6116075e18f79698419f2606d9cb34d23198f7e3 Mon Sep 17 00:00:00 2001 From: Mohan Prasad J Date: Fri, 15 Nov 2024 00:55:18 +0530 Subject: [PATCH 03/16] selftests: nic_link_layer: Add link layer selftest for NIC driver Add selftest file for the link layer tests of a NIC driver. Test for auto-negotiation is added. Add LinkConfig class for changing link layer configs. Selftest makes use of ksft modules and ethtool. Include selftest file in the Makefile. Signed-off-by: Mohan Prasad J Signed-off-by: Paolo Abeni --- .../testing/selftests/drivers/net/hw/Makefile | 1 + .../drivers/net/hw/lib/py/__init__.py | 1 + .../drivers/net/hw/lib/py/linkconfig.py | 222 ++++++++++++++++++ .../drivers/net/hw/nic_link_layer.py | 91 +++++++ 4 files changed, 315 insertions(+) create mode 100644 tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py create mode 100644 tools/testing/selftests/drivers/net/hw/nic_link_layer.py diff --git a/tools/testing/selftests/drivers/net/hw/Makefile b/tools/testing/selftests/drivers/net/hw/Makefile index 1c6a77480923..a87f1f17a10a 100644 --- a/tools/testing/selftests/drivers/net/hw/Makefile +++ b/tools/testing/selftests/drivers/net/hw/Makefile @@ -11,6 +11,7 @@ TEST_PROGS = \ hw_stats_l3.sh \ hw_stats_l3_gre.sh \ loopback.sh \ + nic_link_layer.py \ pp_alloc_fail.py \ rss_ctx.py \ # diff --git a/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py b/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py index b582885786f5..399789a9676a 100644 --- a/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py +++ b/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py @@ -9,6 +9,7 @@ try: sys.path.append(KSFT_DIR.as_posix()) from net.lib.py import * from drivers.net.lib.py import * + from .linkconfig import LinkConfig except ModuleNotFoundError as e: ksft_pr("Failed importing `net` library from kernel sources") ksft_pr(str(e)) diff --git a/tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py b/tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py new file mode 100644 index 000000000000..db84000fc75b --- /dev/null +++ b/tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py @@ -0,0 +1,222 @@ +# SPDX-License-Identifier: GPL-2.0 + +from lib.py import cmd, ethtool, ip +from lib.py import ksft_pr, ksft_eq, KsftSkipEx +from typing import Optional +import re +import time +import json + +#The LinkConfig class is implemented to handle the link layer configurations. +#Required minimum ethtool version is 6.10 + +class LinkConfig: + """Class for handling the link layer configurations""" + def __init__(self, cfg: object) -> None: + self.cfg = cfg + self.partner_netif = self.get_partner_netif_name() + + """Get the initial link configuration of local interface""" + self.common_link_modes = self.get_common_link_modes() + + def get_partner_netif_name(self) -> Optional[str]: + partner_netif = None + try: + if not self.verify_link_up(): + return None + """Get partner interface name""" + partner_json_output = ip("addr show", json=True, host=self.cfg.remote) + for interface in partner_json_output: + for addr in interface.get('addr_info', []): + if addr.get('local') == self.cfg.remote_addr: + partner_netif = interface['ifname'] + ksft_pr(f"Partner Interface name: {partner_netif}") + if partner_netif is None: + ksft_pr("Unable to get the partner interface name") + except Exception as e: + print(f"Unexpected error occurred while getting partner interface name: {e}") + self.partner_netif = partner_netif + return partner_netif + + def verify_link_up(self) -> bool: + """Verify whether the local interface link is up""" + with open(f"/sys/class/net/{self.cfg.ifname}/operstate", "r") as fp: + link_state = fp.read().strip() + + if link_state == "down": + ksft_pr(f"Link state of interface {self.cfg.ifname} is DOWN") + return False + else: + return True + + def reset_interface(self, local: bool = True, remote: bool = True) -> bool: + ksft_pr("Resetting interfaces in local and remote") + if remote: + if self.verify_link_up(): + if self.partner_netif is not None: + ifname = self.partner_netif + link_up_cmd = f"ip link set up {ifname}" + link_down_cmd = f"ip link set down {ifname}" + reset_cmd = f"{link_down_cmd} && sleep 5 && {link_up_cmd}" + try: + cmd(reset_cmd, host=self.cfg.remote) + except Exception as e: + ksft_pr(f"Unexpected error occurred while resetting remote: {e}") + else: + ksft_pr("Partner interface not available") + if local: + ifname = self.cfg.ifname + link_up_cmd = f"ip link set up {ifname}" + link_down_cmd = f"ip link set down {ifname}" + reset_cmd = f"{link_down_cmd} && sleep 5 && {link_up_cmd}" + try: + cmd(reset_cmd) + except Exception as e: + ksft_pr(f"Unexpected error occurred while resetting local: {e}") + time.sleep(10) + if self.verify_link_up() and self.get_ethtool_field("link-detected"): + ksft_pr("Local and remote interfaces reset to original state") + return True + else: + ksft_pr("Error occurred after resetting interfaces. Link is DOWN.") + return False + + def set_speed_and_duplex(self, speed: str, duplex: str, autoneg: bool = True) -> bool: + """Set the speed and duplex state for the interface""" + autoneg_state = "on" if autoneg is True else "off" + process = None + try: + process = ethtool(f"--change {self.cfg.ifname} speed {speed} duplex {duplex} autoneg {autoneg_state}") + except Exception as e: + ksft_pr(f"Unexpected error occurred while setting speed/duplex: {e}") + if process is None or process.ret != 0: + return False + else: + ksft_pr(f"Speed: {speed} Mbps, Duplex: {duplex} set for Interface: {self.cfg.ifname}") + return True + + def verify_speed_and_duplex(self, expected_speed: str, expected_duplex: str) -> bool: + if not self.verify_link_up(): + return False + """Verifying the speed and duplex state for the interface""" + with open(f"/sys/class/net/{self.cfg.ifname}/speed", "r") as fp: + actual_speed = fp.read().strip() + with open(f"/sys/class/net/{self.cfg.ifname}/duplex", "r") as fp: + actual_duplex = fp.read().strip() + + ksft_eq(actual_speed, expected_speed) + ksft_eq(actual_duplex, expected_duplex) + return True + + def set_autonegotiation_state(self, state: str, remote: bool = False) -> bool: + common_link_modes = self.common_link_modes + speeds, duplex_modes = self.get_speed_duplex_values(self.common_link_modes) + speed = speeds[0] + duplex = duplex_modes[0] + if not speed or not duplex: + ksft_pr("No speed or duplex modes found") + return False + + speed_duplex_cmd = f"speed {speed} duplex {duplex}" if state == "off" else "" + if remote: + if not self.verify_link_up(): + return False + """Set the autonegotiation state for the partner""" + command = f"-s {self.partner_netif} {speed_duplex_cmd} autoneg {state}" + partner_autoneg_change = None + """Set autonegotiation state for interface in remote pc""" + try: + partner_autoneg_change = ethtool(command, host=self.cfg.remote) + except Exception as e: + ksft_pr(f"Unexpected error occurred while changing auto-neg in remote: {e}") + if partner_autoneg_change is None or partner_autoneg_change.ret != 0: + ksft_pr(f"Not able to set autoneg parameter for interface {self.partner_netif}.") + return False + ksft_pr(f"Autoneg set as {state} for {self.partner_netif}") + else: + """Set the autonegotiation state for the interface""" + try: + process = ethtool(f"-s {self.cfg.ifname} {speed_duplex_cmd} autoneg {state}") + if process.ret != 0: + ksft_pr(f"Not able to set autoneg parameter for interface {self.cfg.ifname}") + return False + except Exception as e: + ksft_pr(f"Unexpected error occurred while changing auto-neg in local: {e}") + return False + ksft_pr(f"Autoneg set as {state} for {self.cfg.ifname}") + return True + + def check_autoneg_supported(self, remote: bool = False) -> bool: + if not remote: + local_autoneg = self.get_ethtool_field("supports-auto-negotiation") + if local_autoneg is None: + ksft_pr(f"Unable to fetch auto-negotiation status for interface {self.cfg.ifname}") + """Return autoneg status of the local interface""" + return local_autoneg + else: + if not self.verify_link_up(): + raise KsftSkipEx("Link is DOWN") + """Check remote auto-negotiation support status""" + partner_autoneg = False + if self.partner_netif is not None: + partner_autoneg = self.get_ethtool_field("supports-auto-negotiation", remote=True) + if partner_autoneg is None: + ksft_pr(f"Unable to fetch auto-negotiation status for interface {self.partner_netif}") + return partner_autoneg + + def get_common_link_modes(self) -> set[str]: + common_link_modes = [] + """Populate common link modes""" + link_modes = self.get_ethtool_field("supported-link-modes") + partner_link_modes = self.get_ethtool_field("link-partner-advertised-link-modes") + if link_modes is None: + raise KsftSkipEx(f"Link modes not available for {self.cfg.ifname}") + if partner_link_modes is None: + raise KsftSkipEx(f"Partner link modes not available for {self.cfg.ifname}") + common_link_modes = set(link_modes) and set(partner_link_modes) + return common_link_modes + + def get_speed_duplex_values(self, link_modes: list[str]) -> tuple[list[str], list[str]]: + speed = [] + duplex = [] + """Check the link modes""" + for data in link_modes: + parts = data.split('/') + speed_value = re.match(r'\d+', parts[0]) + if speed_value: + speed.append(speed_value.group()) + else: + ksft_pr(f"No speed value found for interface {self.ifname}") + return None, None + duplex.append(parts[1].lower()) + return speed, duplex + + def get_ethtool_field(self, field: str, remote: bool = False) -> Optional[str]: + process = None + if not remote: + """Get the ethtool field value for the local interface""" + try: + process = ethtool(self.cfg.ifname, json=True) + except Exception as e: + ksft_pr("Required minimum ethtool version is 6.10") + ksft_pr(f"Unexpected error occurred while getting ethtool field in local: {e}") + return None + else: + if not self.verify_link_up(): + return None + """Get the ethtool field value for the remote interface""" + self.cfg.require_cmd("ethtool", remote=True) + if self.partner_netif is None: + ksft_pr(f"Partner interface name is unavailable.") + return None + try: + process = ethtool(self.partner_netif, json=True, host=self.cfg.remote) + except Exception as e: + ksft_pr("Required minimum ethtool version is 6.10") + ksft_pr(f"Unexpected error occurred while getting ethtool field in remote: {e}") + return None + json_data = process[0] + """Check if the field exist in the json data""" + if field not in json_data: + raise KsftSkipEx(f"Field {field} does not exist in the output of interface {json_data["ifname"]}") + return json_data[field] diff --git a/tools/testing/selftests/drivers/net/hw/nic_link_layer.py b/tools/testing/selftests/drivers/net/hw/nic_link_layer.py new file mode 100644 index 000000000000..d8cc12e84a40 --- /dev/null +++ b/tools/testing/selftests/drivers/net/hw/nic_link_layer.py @@ -0,0 +1,91 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0 + +#Introduction: +#This file has basic link layer tests for generic NIC drivers. +#The test comprises of auto-negotiation, speed and duplex checks. +# +#Setup: +#Connect the DUT PC with NIC card to partner pc back via ethernet medium of your choice(RJ45, T1) +# +# DUT PC Partner PC +#┌───────────────────────┐ ┌──────────────────────────┐ +#│ │ │ │ +#│ │ │ │ +#│ ┌───────────┐ │ │ +#│ │DUT NIC │ Eth │ │ +#│ │Interface ─┼─────────────────────────┼─ any eth Interface │ +#│ └───────────┘ │ │ +#│ │ │ │ +#│ │ │ │ +#└───────────────────────┘ └──────────────────────────┘ +# +#Configurations: +#Required minimum ethtool version is 6.10 (supports json) +#Default values: +#time_delay = 8 #time taken to wait for transitions to happen, in seconds. + +import time +import argparse +from lib.py import ksft_run, ksft_exit, ksft_pr, ksft_eq +from lib.py import KsftFailEx, KsftSkipEx +from lib.py import NetDrvEpEnv +from lib.py import LinkConfig + +def _pre_test_checks(cfg: object, link_config: LinkConfig) -> None: + if link_config.partner_netif is None: + KsftSkipEx("Partner interface is not available") + if not link_config.check_autoneg_supported() or not link_config.check_autoneg_supported(remote=True): + KsftSkipEx(f"Auto-negotiation not supported for interface {cfg.ifname} or {link_config.partner_netif}") + if not link_config.verify_link_up(): + raise KsftSkipEx(f"Link state of interface {cfg.ifname} is DOWN") + +def verify_autonegotiation(cfg: object, expected_state: str, link_config: LinkConfig) -> None: + if not link_config.verify_link_up(): + raise KsftSkipEx(f"Link state of interface {cfg.ifname} is DOWN") + """Verifying the autonegotiation state in partner""" + partner_autoneg_output = link_config.get_ethtool_field("auto-negotiation", remote=True) + if partner_autoneg_output is None: + KsftSkipEx(f"Auto-negotiation state not available for interface {link_config.partner_netif}") + partner_autoneg_state = "on" if partner_autoneg_output is True else "off" + + ksft_eq(partner_autoneg_state, expected_state) + + """Verifying the autonegotiation state of local""" + autoneg_output = link_config.get_ethtool_field("auto-negotiation") + if autoneg_output is None: + KsftSkipEx(f"Auto-negotiation state not available for interface {cfg.ifname}") + actual_state = "on" if autoneg_output is True else "off" + + ksft_eq(actual_state, expected_state) + + """Verifying the link establishment""" + link_available = link_config.get_ethtool_field("link-detected") + if link_available is None: + KsftSkipEx(f"Link status not available for interface {cfg.ifname}") + if link_available != True: + raise KsftSkipEx("Link not established at interface {cfg.ifname} after changing auto-negotiation") + +def test_autonegotiation(cfg: object, link_config: LinkConfig, time_delay: int) -> None: + _pre_test_checks(cfg, link_config) + for state in ["off", "on"]: + if not link_config.set_autonegotiation_state(state, remote=True): + raise KsftSkipEx(f"Unable to set auto-negotiation state for interface {link_config.partner_netif}") + if not link_config.set_autonegotiation_state(state): + raise KsftSkipEx(f"Unable to set auto-negotiation state for interface {cfg.ifname}") + time.sleep(time_delay) + verify_autonegotiation(cfg, state, link_config) + +def main() -> None: + parser = argparse.ArgumentParser(description="Run basic link layer tests for NIC driver") + parser.add_argument('--time-delay', type=int, default=8, help='Time taken to wait for transitions to happen(in seconds). Default is 8 seconds.') + args = parser.parse_args() + time_delay = args.time_delay + with NetDrvEpEnv(__file__, nsim_test=False) as cfg: + link_config = LinkConfig(cfg) + ksft_run(globs=globals(), case_pfx={"test_"}, args=(cfg, link_config, time_delay,)) + link_config.reset_interface() + ksft_exit() + +if __name__ == "__main__": + main() -- 2.50.1 From c087dc54394b3f8a2950007fb17a8937a38fe73a Mon Sep 17 00:00:00 2001 From: Mohan Prasad J Date: Fri, 15 Nov 2024 00:55:19 +0530 Subject: [PATCH 04/16] selftests: nic_link_layer: Add selftest case for speed and duplex states Add selftest case for testing the speed and duplex state of local NIC driver and the partner based on the supported link modes obtained from the ethtool. Speed and duplex states are varied and verified using ethtool. Signed-off-by: Mohan Prasad J Signed-off-by: Paolo Abeni --- .../drivers/net/hw/nic_link_layer.py | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/testing/selftests/drivers/net/hw/nic_link_layer.py b/tools/testing/selftests/drivers/net/hw/nic_link_layer.py index d8cc12e84a40..efd921180532 100644 --- a/tools/testing/selftests/drivers/net/hw/nic_link_layer.py +++ b/tools/testing/selftests/drivers/net/hw/nic_link_layer.py @@ -76,6 +76,28 @@ def test_autonegotiation(cfg: object, link_config: LinkConfig, time_delay: int) time.sleep(time_delay) verify_autonegotiation(cfg, state, link_config) +def test_network_speed(cfg: object, link_config: LinkConfig, time_delay: int) -> None: + _pre_test_checks(cfg, link_config) + common_link_modes = link_config.common_link_modes + if not common_link_modes: + KsftSkipEx("No common link modes exist") + speeds, duplex_modes = link_config.get_speed_duplex_values(common_link_modes) + + if speeds and duplex_modes and len(speeds) == len(duplex_modes): + for idx in range(len(speeds)): + speed = speeds[idx] + duplex = duplex_modes[idx] + if not link_config.set_speed_and_duplex(speed, duplex): + raise KsftFailEx(f"Unable to set speed and duplex parameters for {cfg.ifname}") + time.sleep(time_delay) + if not link_config.verify_speed_and_duplex(speed, duplex): + raise KsftSkipEx(f"Error occurred while verifying speed and duplex states for interface {cfg.ifname}") + else: + if not speeds or not duplex_modes: + KsftSkipEx(f"No supported speeds or duplex modes found for interface {cfg.ifname}") + else: + KsftSkipEx("Mismatch in the number of speeds and duplex modes") + def main() -> None: parser = argparse.ArgumentParser(description="Run basic link layer tests for NIC driver") parser.add_argument('--time-delay', type=int, default=8, help='Time taken to wait for transitions to happen(in seconds). Default is 8 seconds.') -- 2.50.1 From fbbf93556f0c1ad9b53fd1ec8fd2e67b2debb740 Mon Sep 17 00:00:00 2001 From: Mohan Prasad J Date: Fri, 15 Nov 2024 00:55:20 +0530 Subject: [PATCH 05/16] selftests: nic_performance: Add selftest for performance of NIC driver Add selftest case to check the send and receive throughput. Supported link modes between local NIC driver and partner are varied. Then send and receive throughput is captured and verified. Test uses iperf3 tool. Add iperf3 server/client function in GenerateTraffic class. Signed-off-by: Mohan Prasad J Signed-off-by: Paolo Abeni --- .../testing/selftests/drivers/net/hw/Makefile | 1 + .../drivers/net/hw/nic_performance.py | 137 ++++++++++++++++++ .../selftests/drivers/net/lib/py/load.py | 20 ++- 3 files changed, 157 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/drivers/net/hw/nic_performance.py diff --git a/tools/testing/selftests/drivers/net/hw/Makefile b/tools/testing/selftests/drivers/net/hw/Makefile index a87f1f17a10a..21ba64ce1e34 100644 --- a/tools/testing/selftests/drivers/net/hw/Makefile +++ b/tools/testing/selftests/drivers/net/hw/Makefile @@ -12,6 +12,7 @@ TEST_PROGS = \ hw_stats_l3_gre.sh \ loopback.sh \ nic_link_layer.py \ + nic_performance.py \ pp_alloc_fail.py \ rss_ctx.py \ # diff --git a/tools/testing/selftests/drivers/net/hw/nic_performance.py b/tools/testing/selftests/drivers/net/hw/nic_performance.py new file mode 100644 index 000000000000..201403b76ea3 --- /dev/null +++ b/tools/testing/selftests/drivers/net/hw/nic_performance.py @@ -0,0 +1,137 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0 + +#Introduction: +#This file has basic performance test for generic NIC drivers. +#The test comprises of throughput check for TCP and UDP streams. +# +#Setup: +#Connect the DUT PC with NIC card to partner pc back via ethernet medium of your choice(RJ45, T1) +# +# DUT PC Partner PC +#┌───────────────────────┐ ┌──────────────────────────┐ +#│ │ │ │ +#│ │ │ │ +#│ ┌───────────┐ │ │ +#│ │DUT NIC │ Eth │ │ +#│ │Interface ─┼─────────────────────────┼─ any eth Interface │ +#│ └───────────┘ │ │ +#│ │ │ │ +#│ │ │ │ +#└───────────────────────┘ └──────────────────────────┘ +# +#Configurations: +#To prevent interruptions, Add ethtool, ip to the sudoers list in remote PC and get the ssh key from remote. +#Required minimum ethtool version is 6.10 +#Change the below configuration based on your hw needs. +# """Default values""" +#time_delay = 8 #time taken to wait for transitions to happen, in seconds. +#test_duration = 10 #performance test duration for the throughput check, in seconds. +#send_throughput_threshold = 80 #percentage of send throughput required to pass the check +#receive_throughput_threshold = 50 #percentage of receive throughput required to pass the check + +import time +import json +import argparse +from lib.py import ksft_run, ksft_exit, ksft_pr, ksft_true +from lib.py import KsftFailEx, KsftSkipEx, GenerateTraffic +from lib.py import NetDrvEpEnv, bkg, wait_port_listen +from lib.py import cmd +from lib.py import LinkConfig + +class TestConfig: + def __init__(self, time_delay: int, test_duration: int, send_throughput_threshold: int, receive_throughput_threshold: int) -> None: + self.time_delay = time_delay + self.test_duration = test_duration + self.send_throughput_threshold = send_throughput_threshold + self.receive_throughput_threshold = receive_throughput_threshold + +def _pre_test_checks(cfg: object, link_config: LinkConfig) -> None: + if not link_config.verify_link_up(): + KsftSkipEx(f"Link state of interface {cfg.ifname} is DOWN") + common_link_modes = link_config.common_link_modes + if common_link_modes is None: + KsftSkipEx("No common link modes found") + if link_config.partner_netif == None: + KsftSkipEx("Partner interface is not available") + if link_config.check_autoneg_supported(): + KsftSkipEx("Auto-negotiation not supported by local") + if link_config.check_autoneg_supported(remote=True): + KsftSkipEx("Auto-negotiation not supported by remote") + cfg.require_cmd("iperf3", remote=True) + +def check_throughput(cfg: object, link_config: LinkConfig, test_config: TestConfig, protocol: str, traffic: GenerateTraffic) -> None: + common_link_modes = link_config.common_link_modes + speeds, duplex_modes = link_config.get_speed_duplex_values(common_link_modes) + """Test duration in seconds""" + duration = test_config.test_duration + + ksft_pr(f"{protocol} test") + test_type = "-u" if protocol == "UDP" else "" + + send_throughput = [] + receive_throughput = [] + for idx in range(0, len(speeds)): + if link_config.set_speed_and_duplex(speeds[idx], duplex_modes[idx]) == False: + raise KsftFailEx(f"Not able to set speed and duplex parameters for {cfg.ifname}") + time.sleep(test_config.time_delay) + if not link_config.verify_link_up(): + raise KsftSkipEx(f"Link state of interface {cfg.ifname} is DOWN") + + send_command=f"{test_type} -b 0 -t {duration} --json" + receive_command=f"{test_type} -b 0 -t {duration} --reverse --json" + + send_result = traffic.run_remote_test(cfg, command=send_command) + if send_result.ret != 0: + raise KsftSkipEx("Error occurred during data transmit: {send_result.stdout}") + + send_output = send_result.stdout + send_data = json.loads(send_output) + + """Convert throughput to Mbps""" + send_throughput.append(round(send_data['end']['sum_sent']['bits_per_second'] / 1e6, 2)) + ksft_pr(f"{protocol}: Send throughput: {send_throughput[idx]} Mbps") + + receive_result = traffic.run_remote_test(cfg, command=receive_command) + if receive_result.ret != 0: + raise KsftSkipEx("Error occurred during data receive: {receive_result.stdout}") + + receive_output = receive_result.stdout + receive_data = json.loads(receive_output) + + """Convert throughput to Mbps""" + receive_throughput.append(round(receive_data['end']['sum_received']['bits_per_second'] / 1e6, 2)) + ksft_pr(f"{protocol}: Receive throughput: {receive_throughput[idx]} Mbps") + + """Check whether throughput is not below the threshold (default values set at start)""" + for idx in range(0, len(speeds)): + send_threshold = float(speeds[idx]) * float(test_config.send_throughput_threshold / 100) + receive_threshold = float(speeds[idx]) * float(test_config.receive_throughput_threshold / 100) + ksft_true(send_throughput[idx] >= send_threshold, f"{protocol}: Send throughput is below threshold for {speeds[idx]} Mbps in {duplex_modes[idx]} duplex") + ksft_true(receive_throughput[idx] >= receive_threshold, f"{protocol}: Receive throughput is below threshold for {speeds[idx]} Mbps in {duplex_modes[idx]} duplex") + +def test_tcp_throughput(cfg: object, link_config: LinkConfig, test_config: TestConfig, traffic: GenerateTraffic) -> None: + _pre_test_checks(cfg, link_config) + check_throughput(cfg, link_config, test_config, 'TCP', traffic) + +def test_udp_throughput(cfg: object, link_config: LinkConfig, test_config: TestConfig, traffic: GenerateTraffic) -> None: + _pre_test_checks(cfg, link_config) + check_throughput(cfg, link_config, test_config, 'UDP', traffic) + +def main() -> None: + parser = argparse.ArgumentParser(description="Run basic performance test for NIC driver") + parser.add_argument('--time-delay', type=int, default=8, help='Time taken to wait for transitions to happen(in seconds). Default is 8 seconds.') + parser.add_argument('--test-duration', type=int, default=10, help='Performance test duration for the throughput check, in seconds. Default is 10 seconds.') + parser.add_argument('--stt', type=int, default=80, help='Send throughput Threshold: Percentage of send throughput upon actual throughput required to pass the throughput check (in percentage). Default is 80.') + parser.add_argument('--rtt', type=int, default=50, help='Receive throughput Threshold: Percentage of receive throughput upon actual throughput required to pass the throughput check (in percentage). Default is 50.') + args=parser.parse_args() + test_config = TestConfig(args.time_delay, args.test_duration, args.stt, args.rtt) + with NetDrvEpEnv(__file__, nsim_test=False) as cfg: + traffic = GenerateTraffic(cfg) + link_config = LinkConfig(cfg) + ksft_run(globs=globals(), case_pfx={"test_"}, args=(cfg, link_config, test_config, traffic, )) + link_config.reset_interface() + ksft_exit() + +if __name__ == "__main__": + main() diff --git a/tools/testing/selftests/drivers/net/lib/py/load.py b/tools/testing/selftests/drivers/net/lib/py/load.py index d9c10613ae67..da5af2c680fa 100644 --- a/tools/testing/selftests/drivers/net/lib/py/load.py +++ b/tools/testing/selftests/drivers/net/lib/py/load.py @@ -2,7 +2,7 @@ import time -from lib.py import ksft_pr, cmd, ip, rand_port, wait_port_listen +from lib.py import ksft_pr, cmd, ip, rand_port, wait_port_listen, bkg class GenerateTraffic: def __init__(self, env, port=None): @@ -23,6 +23,24 @@ class GenerateTraffic: self.stop(verbose=True) raise Exception("iperf3 traffic did not ramp up") + def run_remote_test(self, env: object, port=None, command=None): + if port is None: + port = rand_port() + try: + server_cmd = f"iperf3 -s 1 -p {port} --one-off" + with bkg(server_cmd, host=env.remote): + #iperf3 opens TCP connection as default in server + #-u to be specified in client command for UDP + wait_port_listen(port, host=env.remote) + except Exception as e: + raise Exception(f"Unexpected error occurred while running server command: {e}") + try: + client_cmd = f"iperf3 -c {env.remote_addr} -p {port} {command}" + proc = cmd(client_cmd) + return proc + except Exception as e: + raise Exception(f"Unexpected error occurred while running client command: {e}") + def _wait_pkts(self, pkt_cnt=None, pps=None): """ Wait until we've seen pkt_cnt or until traffic ramps up to pps. -- 2.50.1 From a202e6014709d329346b0766e89f797ef0d1eccf Mon Sep 17 00:00:00 2001 From: tuqiang Date: Fri, 15 Nov 2024 10:47:31 +0800 Subject: [PATCH 06/16] Documentation: tipc: fix formatting issue in tipc.rst The hyphen is removed to have the same style as the others. Fixes: 09ef17863f37 ("Documentation: add more details in tipc.rst") Signed-off-by: tuqiang Signed-off-by: Jiang Kun Reviewed-by: Simon Horman Cc: xu xin Cc: David S. Miller Cc: Eric Dumazet Cc: Jakub Kicinski Cc: Paolo Abeni Cc: Jonathan Corbet Cc: Jon Maloy Cc: Xin Long Link: https://patch.msgid.link/20241115104731435HuFjZOmkaqumuFhB7mrwe@zte.com.cn Signed-off-by: Paolo Abeni --- Documentation/networking/tipc.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/networking/tipc.rst b/Documentation/networking/tipc.rst index ab63d298cca2..9b375b9b9981 100644 --- a/Documentation/networking/tipc.rst +++ b/Documentation/networking/tipc.rst @@ -112,7 +112,7 @@ More Information - How to contribute to TIPC: -- http://tipc.io/contacts.html + http://tipc.io/contacts.html - More details about TIPC specification: -- 2.50.1 From 96ed62ea02984f14b6d4f2e4aed327d803875b7a Mon Sep 17 00:00:00 2001 From: Yunsheng Lin Date: Tue, 19 Nov 2024 11:30:11 +0800 Subject: [PATCH 07/16] mm: page_frag: fix a compile error when kernel is not compiled page_frag test module is an out of tree module, but built using KDIR as the main kernel tree, the mm test suite is just getting skipped if newly added page_frag test module fails to compile due to kernel not yet compiled. Fix the above problem by ensuring both kernel is built first and a newer kernel which has page_frag_cache.h is used. CC: Andrew Morton CC: Alexander Duyck CC: Linux-MM Fixes: 7fef0dec415c ("mm: page_frag: add a test module for page_frag") Fixes: 65941f10caf2 ("mm: move the page fragment allocator from page_alloc into its own file") Reported-by: Mark Brown Signed-off-by: Yunsheng Lin Tested-by: Mark Brown Link: https://patch.msgid.link/20241119033012.257525-1-linyunsheng@huawei.com Signed-off-by: Paolo Abeni --- tools/testing/selftests/mm/Makefile | 18 ++++++++++++++++++ tools/testing/selftests/mm/page_frag/Makefile | 2 +- 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile index acec529baaca..04e04733fc8a 100644 --- a/tools/testing/selftests/mm/Makefile +++ b/tools/testing/selftests/mm/Makefile @@ -36,7 +36,16 @@ MAKEFLAGS += --no-builtin-rules CFLAGS = -Wall -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES) LDLIBS = -lrt -lpthread -lm +KDIR ?= /lib/modules/$(shell uname -r)/build +ifneq (,$(wildcard $(KDIR)/Module.symvers)) +ifneq (,$(wildcard $(KDIR)/include/linux/page_frag_cache.h)) TEST_GEN_MODS_DIR := page_frag +else +PAGE_FRAG_WARNING = "missing page_frag_cache.h, please use a newer kernel" +endif +else +PAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first" +endif TEST_GEN_FILES = cow TEST_GEN_FILES += compaction_test @@ -214,3 +223,12 @@ warn_missing_liburing: echo "Warning: missing liburing support. Some tests will be skipped." ; \ echo endif + +ifneq ($(PAGE_FRAG_WARNING),) +all: warn_missing_page_frag + +warn_missing_page_frag: + @echo ; \ + echo "Warning: $(PAGE_FRAG_WARNING). page_frag test will be skipped." ; \ + echo +endif diff --git a/tools/testing/selftests/mm/page_frag/Makefile b/tools/testing/selftests/mm/page_frag/Makefile index 58dda74d50a3..8c8bb39ffa28 100644 --- a/tools/testing/selftests/mm/page_frag/Makefile +++ b/tools/testing/selftests/mm/page_frag/Makefile @@ -1,5 +1,5 @@ PAGE_FRAG_TEST_DIR := $(realpath $(dir $(abspath $(lastword $(MAKEFILE_LIST))))) -KDIR ?= $(abspath $(PAGE_FRAG_TEST_DIR)/../../../../..) +KDIR ?= /lib/modules/$(shell uname -r)/build ifeq ($(V),1) Q = -- 2.50.1 From 26bda0dff9ca74ae071643e0176f248d72f43580 Mon Sep 17 00:00:00 2001 From: "Rob Herring (Arm)" Date: Fri, 15 Nov 2024 13:37:40 -0600 Subject: [PATCH 08/16] arm64: dts: amd: Remove unused and undocumented "amd,zlib-support" property Remove "amd,zlib-support" property which is both unused in the kernel and undocumented. Most likely they are leftovers from downstream. Signed-off-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20241115193740.3622591-2-robh@kernel.org Signed-off-by: Arnd Bergmann --- arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts | 1 - arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts | 1 - 2 files changed, 2 deletions(-) diff --git a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts index 1a65f1ec183d..7c82d90e940d 100644 --- a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts +++ b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts @@ -27,7 +27,6 @@ &ccp0 { status = "okay"; - amd,zlib-support = <1>; }; /** diff --git a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts index 52f8d36295a8..58e2b0a6f841 100644 --- a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts +++ b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts @@ -27,7 +27,6 @@ &ccp0 { status = "okay"; - amd,zlib-support = <1>; }; /** -- 2.50.1 From a21b2eb7cfe28227ecc2e702b4a2aad8068d4ad2 Mon Sep 17 00:00:00 2001 From: "Rob Herring (Arm)" Date: Fri, 15 Nov 2024 13:38:34 -0600 Subject: [PATCH 09/16] arm: dts: spear13xx: Remove unused and undocumented "pl022,slave-tx-disable" property Remove "pl022,slave-tx-disable" property which is both unused in the kernel and undocumented. Most likely they are leftovers from downstream. Signed-off-by: Rob Herring (Arm) Acked-by: Viresh Kumar Link: https://lore.kernel.org/r/20241115193835.3623725-1-robh@kernel.org Signed-off-by: Arnd Bergmann --- arch/arm/boot/dts/st/spear1310-evb.dts | 2 -- arch/arm/boot/dts/st/spear1340-evb.dts | 2 -- 2 files changed, 4 deletions(-) diff --git a/arch/arm/boot/dts/st/spear1310-evb.dts b/arch/arm/boot/dts/st/spear1310-evb.dts index 18191a87f07c..ad216571ba57 100644 --- a/arch/arm/boot/dts/st/spear1310-evb.dts +++ b/arch/arm/boot/dts/st/spear1310-evb.dts @@ -353,7 +353,6 @@ spi-max-frequency = <1000000>; spi-cpha; pl022,interface = <0>; - pl022,slave-tx-disable; pl022,com-mode = <0>; pl022,rx-level-trig = <0>; pl022,tx-level-trig = <0>; @@ -385,7 +384,6 @@ spi-cpol; spi-cpha; pl022,interface = <0>; - pl022,slave-tx-disable; pl022,com-mode = <0x2>; pl022,rx-level-trig = <0>; pl022,tx-level-trig = <0>; diff --git a/arch/arm/boot/dts/st/spear1340-evb.dts b/arch/arm/boot/dts/st/spear1340-evb.dts index cea624fc745c..9b515b21a633 100644 --- a/arch/arm/boot/dts/st/spear1340-evb.dts +++ b/arch/arm/boot/dts/st/spear1340-evb.dts @@ -446,7 +446,6 @@ spi-cpol; spi-cpha; pl022,interface = <0>; - pl022,slave-tx-disable; pl022,com-mode = <0x2>; pl022,rx-level-trig = <0>; pl022,tx-level-trig = <0>; @@ -461,7 +460,6 @@ spi-cpha; reg = <1>; pl022,interface = <0>; - pl022,slave-tx-disable; pl022,com-mode = <0>; pl022,rx-level-trig = <0>; pl022,tx-level-trig = <0>; -- 2.50.1 From 9f5cbdaae5f760c218c82e0a5e0f9c58bac56f0c Mon Sep 17 00:00:00 2001 From: "Rob Herring (Arm)" Date: Fri, 15 Nov 2024 13:50:49 -0600 Subject: [PATCH 10/16] arm64: dts: apm: Remove unused and undocumented "bus_num" property Remove "bus_num" property which is both unused in the kernel and undocumented. Most likely they are leftovers from downstream. Signed-off-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20241115195049.3637454-2-robh@kernel.org Signed-off-by: Arnd Bergmann --- arch/arm64/boot/dts/apm/apm-shadowcat.dtsi | 2 -- arch/arm64/boot/dts/apm/apm-storm.dtsi | 1 - 2 files changed, 3 deletions(-) diff --git a/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi b/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi index ea5721ea02f0..5a64239b4708 100644 --- a/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi +++ b/arch/arm64/boot/dts/apm/apm-shadowcat.dtsi @@ -809,7 +809,6 @@ interrupts = <0 0x45 0x4>; #clock-cells = <1>; clocks = <&sbapbclk 0>; - bus_num = <1>; }; i2c4: i2c@10640000 { @@ -819,7 +818,6 @@ reg = <0x0 0x10640000 0x0 0x1000>; interrupts = <0 0x3a 0x4>; clocks = <&i2c4clk 0>; - bus_num = <4>; }; }; }; diff --git a/arch/arm64/boot/dts/apm/apm-storm.dtsi b/arch/arm64/boot/dts/apm/apm-storm.dtsi index 6ad4703925dc..872093b05ce1 100644 --- a/arch/arm64/boot/dts/apm/apm-storm.dtsi +++ b/arch/arm64/boot/dts/apm/apm-storm.dtsi @@ -851,7 +851,6 @@ interrupts = <0 0x44 0x4>; #clock-cells = <1>; clocks = <&ahbclk 0>; - bus_num = <0>; }; phy1: phy@1f21a000 { -- 2.50.1 From 9080d11a6c5c1fbf27127afdef84d8dcd65b91ff Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Thu, 31 Oct 2024 15:58:57 +0000 Subject: [PATCH 11/16] scripts: ipe: polgen: remove redundant close and error exit path Currently if an fopen fails the error exit path is via code that checks if fp is not null and closes the file, however, fp is null so this check and close is redundant. Since the only use of the err exit label is on the fopen check, remove it and replace the code with a simple return of errno. Also remove variable rc since it's no longer required. Signed-off-by: Colin Ian King Signed-off-by: Fan Wu --- scripts/ipe/polgen/polgen.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/scripts/ipe/polgen/polgen.c b/scripts/ipe/polgen/polgen.c index c6283b3ff006..01134cf895d0 100644 --- a/scripts/ipe/polgen/polgen.c +++ b/scripts/ipe/polgen/polgen.c @@ -61,15 +61,12 @@ out: static int write_boot_policy(const char *pathname, const char *buf, size_t size) { - int rc = 0; FILE *fd; size_t i; fd = fopen(pathname, "w"); - if (!fd) { - rc = errno; - goto err; - } + if (!fd) + return errno; fprintf(fd, "/* This file is automatically generated."); fprintf(fd, " Do not edit. */\n"); @@ -113,11 +110,6 @@ static int write_boot_policy(const char *pathname, const char *buf, size_t size) fclose(fd); return 0; - -err: - if (fd) - fclose(fd); - return rc; } int main(int argc, const char *const argv[]) -- 2.50.1 From f26a29a038ee3982099e867bec2260576a19720f Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Sat, 16 Nov 2024 21:52:15 +0100 Subject: [PATCH 12/16] net: phy: ensure that genphy_c45_an_config_eee_aneg() sees new value of phydev->eee_cfg.eee_enabled This is a follow-up to 41ffcd95015f ("net: phy: fix phylib's dual eee_enabled") and resolves an issue with genphy_c45_an_config_eee_aneg() (called from genphy_c45_ethtool_set_eee) not seeing the new value of phydev->eee_cfg.eee_enabled. Fixes: 49168d1980e2 ("net: phy: Add phy_support_eee() indicating MAC support EEE") Signed-off-by: Heiner Kallweit Reported-by: Choong Yong Liang Reviewed-by: Russell King (Oracle) Signed-off-by: David S. Miller --- drivers/net/phy/phy.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 4f3e742907cb..a660a80f34b7 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1672,7 +1672,7 @@ EXPORT_SYMBOL(phy_ethtool_get_eee); * phy_ethtool_set_eee_noneg - Adjusts MAC LPI configuration without PHY * renegotiation * @phydev: pointer to the target PHY device structure - * @data: pointer to the ethtool_keee structure containing the new EEE settings + * @old_cfg: pointer to the eee_config structure containing the old EEE settings * * This function updates the Energy Efficient Ethernet (EEE) configuration * for cases where only the MAC's Low Power Idle (LPI) configuration changes, @@ -1683,11 +1683,10 @@ EXPORT_SYMBOL(phy_ethtool_get_eee); * configuration. */ static void phy_ethtool_set_eee_noneg(struct phy_device *phydev, - struct ethtool_keee *data) + const struct eee_config *old_cfg) { - if (phydev->eee_cfg.tx_lpi_enabled != data->tx_lpi_enabled || - phydev->eee_cfg.tx_lpi_timer != data->tx_lpi_timer) { - eee_to_eeecfg(&phydev->eee_cfg, data); + if (phydev->eee_cfg.tx_lpi_enabled != old_cfg->tx_lpi_enabled || + phydev->eee_cfg.tx_lpi_timer != old_cfg->tx_lpi_timer) { phydev->enable_tx_lpi = eeecfg_mac_can_tx_lpi(&phydev->eee_cfg); if (phydev->link) { phydev->link = false; @@ -1707,18 +1706,23 @@ static void phy_ethtool_set_eee_noneg(struct phy_device *phydev, */ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_keee *data) { + struct eee_config old_cfg; int ret; if (!phydev->drv) return -EIO; mutex_lock(&phydev->lock); + + old_cfg = phydev->eee_cfg; + eee_to_eeecfg(&phydev->eee_cfg, data); + ret = genphy_c45_ethtool_set_eee(phydev, data); - if (ret >= 0) { - if (ret == 0) - phy_ethtool_set_eee_noneg(phydev, data); - eee_to_eeecfg(&phydev->eee_cfg, data); - } + if (ret == 0) + phy_ethtool_set_eee_noneg(phydev, &old_cfg); + else if (ret < 0) + phydev->eee_cfg = old_cfg; + mutex_unlock(&phydev->lock); return ret < 0 ? ret : 0; -- 2.50.1 From 03819abbeb11117dcbba40bfe322b88c0c88a6b6 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Sat, 16 Nov 2024 14:05:57 +0100 Subject: [PATCH 13/16] net: usb: lan78xx: Fix double free issue with interrupt buffer allocation In lan78xx_probe(), the buffer `buf` was being freed twice: once implicitly through `usb_free_urb(dev->urb_intr)` with the `URB_FREE_BUFFER` flag and again explicitly by `kfree(buf)`. This caused a double free issue. To resolve this, reordered `kmalloc()` and `usb_alloc_urb()` calls to simplify the initialization sequence and removed the redundant `kfree(buf)`. Now, `buf` is allocated after `usb_alloc_urb()`, ensuring it is correctly managed by `usb_fill_int_urb()` and freed by `usb_free_urb()` as intended. Fixes: a6df95cae40b ("lan78xx: Fix memory allocation bug") Cc: John Efstathiades Signed-off-by: Oleksij Rempel Link: https://patch.msgid.link/20241116130558.1352230-1-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski --- drivers/net/usb/lan78xx.c | 29 ++++++++++++++--------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 8adf77e3557e..094a47b8b97e 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -4414,29 +4414,30 @@ static int lan78xx_probe(struct usb_interface *intf, period = ep_intr->desc.bInterval; maxp = usb_maxpacket(dev->udev, dev->pipe_intr); - buf = kmalloc(maxp, GFP_KERNEL); - if (!buf) { + + dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL); + if (!dev->urb_intr) { ret = -ENOMEM; goto out5; } - dev->urb_intr = usb_alloc_urb(0, GFP_KERNEL); - if (!dev->urb_intr) { + buf = kmalloc(maxp, GFP_KERNEL); + if (!buf) { ret = -ENOMEM; - goto out6; - } else { - usb_fill_int_urb(dev->urb_intr, dev->udev, - dev->pipe_intr, buf, maxp, - intr_complete, dev, period); - dev->urb_intr->transfer_flags |= URB_FREE_BUFFER; + goto free_urbs; } + usb_fill_int_urb(dev->urb_intr, dev->udev, + dev->pipe_intr, buf, maxp, + intr_complete, dev, period); + dev->urb_intr->transfer_flags |= URB_FREE_BUFFER; + dev->maxpacket = usb_maxpacket(dev->udev, dev->pipe_out); /* Reject broken descriptors. */ if (dev->maxpacket == 0) { ret = -ENODEV; - goto out6; + goto free_urbs; } /* driver requires remote-wakeup capability during autosuspend. */ @@ -4444,7 +4445,7 @@ static int lan78xx_probe(struct usb_interface *intf, ret = lan78xx_phy_init(dev); if (ret < 0) - goto out7; + goto free_urbs; ret = register_netdev(netdev); if (ret != 0) { @@ -4466,10 +4467,8 @@ static int lan78xx_probe(struct usb_interface *intf, out8: phy_disconnect(netdev->phydev); -out7: +free_urbs: usb_free_urb(dev->urb_intr); -out6: - kfree(buf); out5: lan78xx_unbind(dev, intf); out4: -- 2.50.1 From ae7370e61c5d8f5bcefc2d4fca724bd4e9bbf789 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Sat, 16 Nov 2024 14:05:58 +0100 Subject: [PATCH 14/16] net: usb: lan78xx: Fix memory leak on device unplug by freeing PHY device Add calls to `phy_device_free` after `fixed_phy_unregister` to fix a memory leak that occurs when the device is unplugged. This ensures proper cleanup of pseudo fixed-link PHYs. Fixes: 89b36fb5e532 ("lan78xx: Lan7801 Support for Fixed PHY") Cc: Raghuram Chary J Signed-off-by: Oleksij Rempel Link: https://patch.msgid.link/20241116130558.1352230-2-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski --- drivers/net/usb/lan78xx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 094a47b8b97e..9f191b6ce821 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2380,6 +2380,7 @@ static int lan78xx_phy_init(struct lan78xx_net *dev) if (dev->chipid == ID_REV_CHIP_ID_7801_) { if (phy_is_pseudo_fixed_link(phydev)) { fixed_phy_unregister(phydev); + phy_device_free(phydev); } else { phy_unregister_fixup_for_uid(PHY_KSZ9031RNX, 0xfffffff0); @@ -4246,8 +4247,10 @@ static void lan78xx_disconnect(struct usb_interface *intf) phy_disconnect(net->phydev); - if (phy_is_pseudo_fixed_link(phydev)) + if (phy_is_pseudo_fixed_link(phydev)) { fixed_phy_unregister(phydev); + phy_device_free(phydev); + } usb_scuttle_anchored_urbs(&dev->deferred); -- 2.50.1 From 078f644cb81b78afdfbc42b9cc2c11959f2ed65c Mon Sep 17 00:00:00 2001 From: David Wei Date: Thu, 21 Nov 2024 22:48:21 -0800 Subject: [PATCH 15/16] selftests: fix nested double quotes in f-string Replace nested double quotes in f-string with outer single quotes. Fixes: 6116075e18f7 ("selftests: nic_link_layer: Add link layer selftest for NIC driver") Signed-off-by: David Wei Link: https://patch.msgid.link/20241122064821.2821199-1-dw@davidwei.uk Signed-off-by: Jakub Kicinski --- tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py b/tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py index db84000fc75b..79fde603cbbc 100644 --- a/tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py +++ b/tools/testing/selftests/drivers/net/hw/lib/py/linkconfig.py @@ -218,5 +218,5 @@ class LinkConfig: json_data = process[0] """Check if the field exist in the json data""" if field not in json_data: - raise KsftSkipEx(f"Field {field} does not exist in the output of interface {json_data["ifname"]}") + raise KsftSkipEx(f'Field {field} does not exist in the output of interface {json_data["ifname"]}') return json_data[field] -- 2.50.1 From 9b234a97b10cf1385d451a3824539b774abbcdaf Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 21 Nov 2024 19:41:05 +0000 Subject: [PATCH 16/16] rtnetlink: fix rtnl_dump_ifinfo() error path syzbot found that rtnl_dump_ifinfo() could return with a lock held [1] Move code around so that rtnl_link_ops_put() and put_net() can be called at the end of this function. [1] WARNING: lock held when returning to user space! 6.12.0-rc7-syzkaller-01681-g38f83a57aa8e #0 Not tainted syz-executor399/5841 is leaving the kernel with locks still held! 1 lock held by syz-executor399/5841: #0: ffffffff8f46c2a0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] #0: ffffffff8f46c2a0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline] #0: ffffffff8f46c2a0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:555 Fixes: 43c7ce69d28e ("rtnetlink: Protect struct rtnl_link_ops with SRCU.") Reported-by: syzbot Signed-off-by: Eric Dumazet Reviewed-by: Joe Damato Reviewed-by: Kuniyuki Iwashima Link: https://patch.msgid.link/20241121194105.3632507-1-edumazet@google.com Signed-off-by: Jakub Kicinski --- net/core/rtnetlink.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index dd142f444659..58df76fe408a 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -2442,7 +2442,9 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) tgt_net = rtnl_get_net_ns_capable(skb->sk, netnsid); if (IS_ERR(tgt_net)) { NL_SET_ERR_MSG(extack, "Invalid target network namespace id"); - return PTR_ERR(tgt_net); + err = PTR_ERR(tgt_net); + netnsid = -1; + goto out; } break; case IFLA_EXT_MASK: @@ -2457,7 +2459,8 @@ static int rtnl_dump_ifinfo(struct sk_buff *skb, struct netlink_callback *cb) default: if (cb->strict_check) { NL_SET_ERR_MSG(extack, "Unsupported attribute in link dump request"); - return -EINVAL; + err = -EINVAL; + goto out; } } } @@ -2479,11 +2482,14 @@ walk_entries: break; } - if (kind_ops) - rtnl_link_ops_put(kind_ops, ops_srcu_index); cb->seq = tgt_net->dev_base_seq; nl_dump_check_consistent(cb, nlmsg_hdr(skb)); + +out: + + if (kind_ops) + rtnl_link_ops_put(kind_ops, ops_srcu_index); if (netnsid >= 0) put_net(tgt_net); -- 2.50.1