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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-24 08:46:03 -0700
commitcf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch)
tree757a3d280760c654767631cab5ad8af2d86d1848 /net/rds/stats.c
downloadlinux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz
linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ...
Diffstat (limited to 'net/rds/stats.c')
-rw-r--r--net/rds/stats.c155
1 files changed, 155 insertions, 0 deletions
diff --git a/net/rds/stats.c b/net/rds/stats.c
new file mode 100644
index 000000000..24ee22d09
--- /dev/null
+++ b/net/rds/stats.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2006 Oracle. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+#include <linux/percpu.h>
+#include <linux/seq_file.h>
+#include <linux/proc_fs.h>
+#include <linux/export.h>
+
+#include "rds.h"
+
+DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_statistics, rds_stats);
+EXPORT_PER_CPU_SYMBOL_GPL(rds_stats);
+
+/* :.,$s/unsigned long\>.*\<s_\(.*\);/"\1",/g */
+
+static const char *const rds_stat_names[] = {
+ "conn_reset",
+ "recv_drop_bad_checksum",
+ "recv_drop_old_seq",
+ "recv_drop_no_sock",
+ "recv_drop_dead_sock",
+ "recv_deliver_raced",
+ "recv_delivered",
+ "recv_queued",
+ "recv_immediate_retry",
+ "recv_delayed_retry",
+ "recv_ack_required",
+ "recv_rdma_bytes",
+ "recv_ping",
+ "send_queue_empty",
+ "send_queue_full",
+ "send_lock_contention",
+ "send_lock_queue_raced",
+ "send_immediate_retry",
+ "send_delayed_retry",
+ "send_drop_acked",
+ "send_ack_required",
+ "send_queued",
+ "send_rdma",
+ "send_rdma_bytes",
+ "send_pong",
+ "page_remainder_hit",
+ "page_remainder_miss",
+ "copy_to_user",
+ "copy_from_user",
+ "cong_update_queued",
+ "cong_update_received",
+ "cong_send_error",
+ "cong_send_blocked",
+ "recv_bytes_added_to_sock",
+ "recv_bytes_freed_fromsock",
+ "send_stuck_rm",
+ "mprds_catchup_tx0_retries",
+};
+
+void rds_stats_info_copy(struct rds_info_iterator *iter,
+ uint64_t *values, const char *const *names, size_t nr)
+{
+ struct rds_info_counter ctr;
+ size_t i;
+
+ for (i = 0; i < nr; i++) {
+ BUG_ON(strlen(names[i]) >= sizeof(ctr.name));
+ strscpy_pad(ctr.name, names[i]);
+ ctr.value = values[i];
+
+ rds_info_copy(iter, &ctr, sizeof(ctr));
+ }
+}
+EXPORT_SYMBOL_GPL(rds_stats_info_copy);
+
+/*
+ * This gives global counters across all the transports. The strings
+ * are copied in so that the tool doesn't need knowledge of the specific
+ * stats that we're exporting. Some are pretty implementation dependent
+ * and may change over time. That doesn't stop them from being useful.
+ *
+ * This is the only function in the chain that knows about the byte granular
+ * length in userspace. It converts it to number of stat entries that the
+ * rest of the functions operate in.
+ */
+static void rds_stats_info(struct socket *sock, unsigned int len,
+ struct rds_info_iterator *iter,
+ struct rds_info_lengths *lens)
+{
+ struct rds_statistics stats = {0, };
+ uint64_t *src;
+ uint64_t *sum;
+ size_t i;
+ int cpu;
+ unsigned int avail;
+
+ avail = len / sizeof(struct rds_info_counter);
+
+ if (avail < ARRAY_SIZE(rds_stat_names)) {
+ avail = 0;
+ goto trans;
+ }
+
+ for_each_online_cpu(cpu) {
+ src = (uint64_t *)&(per_cpu(rds_stats, cpu));
+ sum = (uint64_t *)&stats;
+ for (i = 0; i < sizeof(stats) / sizeof(uint64_t); i++)
+ *(sum++) += *(src++);
+ }
+
+ rds_stats_info_copy(iter, (uint64_t *)&stats, rds_stat_names,
+ ARRAY_SIZE(rds_stat_names));
+ avail -= ARRAY_SIZE(rds_stat_names);
+
+trans:
+ lens->each = sizeof(struct rds_info_counter);
+ lens->nr = rds_trans_stats_info_copy(iter, avail) +
+ ARRAY_SIZE(rds_stat_names);
+}
+
+void rds_stats_exit(void)
+{
+ rds_info_deregister_func(RDS_INFO_COUNTERS, rds_stats_info);
+}
+
+int rds_stats_init(void)
+{
+ rds_info_register_func(RDS_INFO_COUNTERS, rds_stats_info);
+ return 0;
+}