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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 /include/net/smc.h
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 'include/net/smc.h')
-rw-r--r--include/net/smc.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/include/net/smc.h b/include/net/smc.h
new file mode 100644
index 000000000..a2bc3ab88
--- /dev/null
+++ b/include/net/smc.h
@@ -0,0 +1,106 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Shared Memory Communications over RDMA (SMC-R) and RoCE
+ *
+ * Definitions for the SMC module (socket related)
+ *
+ * Copyright IBM Corp. 2016
+ *
+ * Author(s): Ursula Braun <ubraun@linux.vnet.ibm.com>
+ */
+#ifndef _SMC_H
+#define _SMC_H
+
+#include <linux/device.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/wait.h>
+#include <linux/dibs.h>
+
+struct tcp_sock;
+struct inet_request_sock;
+struct sock;
+
+#define SMC_MAX_PNETID_LEN 16 /* Max. length of PNET id */
+
+struct smc_hashinfo {
+ rwlock_t lock;
+ struct hlist_head ht;
+};
+
+/* SMCD/ISM device driver interface */
+#define ISM_RESERVED_VLANID 0x1FFF
+
+struct smcd_gid {
+ u64 gid;
+ u64 gid_ext;
+};
+
+struct smcd_dev {
+ struct dibs_dev *dibs;
+ struct list_head list;
+ spinlock_t lock;
+ struct list_head vlan;
+ struct workqueue_struct *event_wq;
+ u8 pnetid[SMC_MAX_PNETID_LEN];
+ bool pnetid_by_user;
+ struct list_head lgr_list;
+ spinlock_t lgr_lock;
+ atomic_t lgr_cnt;
+ wait_queue_head_t lgrs_deleted;
+ u8 going_away : 1;
+ struct smc_connection *conn[];
+};
+
+#define SMC_HS_CTRL_NAME_MAX 16
+
+enum {
+ /* ops can be inherit from init_net */
+ SMC_HS_CTRL_FLAG_INHERITABLE = 0x1,
+
+ SMC_HS_CTRL_ALL_FLAGS = SMC_HS_CTRL_FLAG_INHERITABLE,
+};
+
+struct smc_hs_ctrl {
+ /* private */
+
+ struct list_head list;
+ struct module *owner;
+
+ /* public */
+
+ /* unique name */
+ char name[SMC_HS_CTRL_NAME_MAX];
+ int flags;
+
+ /* Invoked before computing SMC option for SYN packets.
+ * We can control whether to set SMC options by returning various value.
+ * Return 0 to disable SMC, or return any other value to enable it.
+ */
+ int (*syn_option)(struct tcp_sock *tp);
+
+ /* Invoked before Set up SMC options for SYN-ACK packets
+ * We can control whether to respond SMC options by returning various
+ * value. Return 0 to disable SMC, or return any other value to enable
+ * it.
+ */
+ int (*synack_option)(const struct tcp_sock *tp,
+ struct inet_request_sock *ireq);
+};
+
+#if IS_ENABLED(CONFIG_SMC_HS_CTRL_BPF)
+#define smc_call_hsbpf(init_val, tp, func, ...) ({ \
+ typeof(init_val) __ret = (init_val); \
+ struct smc_hs_ctrl *ctrl; \
+ rcu_read_lock(); \
+ ctrl = rcu_dereference(sock_net((struct sock *)(tp))->smc.hs_ctrl); \
+ if (ctrl && ctrl->func) \
+ __ret = ctrl->func(tp, ##__VA_ARGS__); \
+ rcu_read_unlock(); \
+ __ret; \
+})
+#else
+#define smc_call_hsbpf(init_val, tp, ...) ({ (void)(tp); (init_val); })
+#endif /* CONFIG_SMC_HS_CTRL_BPF */
+
+#endif /* _SMC_H */