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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/net/ncsi/internal.h
....@@ -1,10 +1,6 @@
1
+/* SPDX-License-Identifier: GPL-2.0-or-later */
12 /*
23  * Copyright Gavin Shan, IBM Corporation 2016.
3
- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
84  */
95 
106 #ifndef __NCSI_INTERNAL_H__
....@@ -67,6 +63,39 @@
6763 	NCSI_MODE_FC,
6864 	NCSI_MODE_MAX
6965 };
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+
67
+/* Supported media status bits for Mellanox Mac affinity command.
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+ * Bit (0-2) for different protocol support; Bit 1 for RBT support,
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+ * bit 1 for SMBUS support and bit 2 for PCIE support. Bit (3-5)
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+ * for different protocol availability. Bit 4 for RBT, bit 4 for
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+ * SMBUS and bit 5 for PCIE.
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+ */
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+enum {
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+	MLX_MC_RBT_SUPPORT  = 0x01, /* MC supports RBT         */
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+	MLX_MC_RBT_AVL      = 0x08, /* RBT medium is available */
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+};
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+
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+/* OEM Vendor Manufacture ID */
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+#define NCSI_OEM_MFR_MLX_ID             0x8119
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+#define NCSI_OEM_MFR_BCM_ID             0x113d
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+/* Broadcom specific OEM Command */
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+#define NCSI_OEM_BCM_CMD_GMA            0x01   /* CMD ID for Get MAC */
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+/* Mellanox specific OEM Command */
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+#define NCSI_OEM_MLX_CMD_GMA            0x00   /* CMD ID for Get MAC */
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+#define NCSI_OEM_MLX_CMD_GMA_PARAM      0x1b   /* Parameter for GMA  */
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+#define NCSI_OEM_MLX_CMD_SMAF           0x01   /* CMD ID for Set MC Affinity */
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+#define NCSI_OEM_MLX_CMD_SMAF_PARAM     0x07   /* Parameter for SMAF         */
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+/* OEM Command payload lengths*/
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+#define NCSI_OEM_BCM_CMD_GMA_LEN        12
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+#define NCSI_OEM_MLX_CMD_GMA_LEN        8
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+#define NCSI_OEM_MLX_CMD_SMAF_LEN        60
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+/* Offset in OEM request */
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+#define MLX_SMAF_MAC_ADDR_OFFSET         8     /* Offset for MAC in SMAF    */
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+#define MLX_SMAF_MED_SUPPORT_OFFSET      14    /* Offset for medium in SMAF */
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+/* Mac address offset in OEM response */
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+#define BCM_MAC_ADDR_OFFSET             28
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+#define MLX_MAC_ADDR_OFFSET             8
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+
7099 
71100 struct ncsi_channel_version {
72101 	u32 version;		/* Supported BCD encoded NCSI version */
....@@ -171,6 +200,8 @@
171200 #define NCSI_RESERVED_CHANNEL	0x1f
172201 #define NCSI_CHANNEL_INDEX(c)	((c) & ((1 << NCSI_PACKAGE_SHIFT) - 1))
173202 #define NCSI_TO_CHANNEL(p, c)	(((p) << NCSI_PACKAGE_SHIFT) | (c))
203
+#define NCSI_MAX_PACKAGE	8
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+#define NCSI_MAX_CHANNEL	32
174205 
175206 struct ncsi_channel {
176207 	unsigned char               id;
....@@ -209,6 +240,10 @@
209240 	unsigned int         channel_num; /* Number of channels     */
210241 	struct list_head     channels;    /* List of chanels        */
211242 	struct list_head     node;        /* Form list of packages  */
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+
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+	bool                 multi_channel; /* Enable multiple channels  */
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+	u32                  channel_whitelist; /* Channels to configure */
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+	struct ncsi_channel  *preferred_channel; /* Primary channel      */
212247 };
213248 
214249 struct ncsi_request {
....@@ -216,11 +251,15 @@
216251 	bool                 used;    /* Request that has been assigned  */
217252 	unsigned int         flags;   /* NCSI request property           */
218253 #define NCSI_REQ_FLAG_EVENT_DRIVEN	1
254
+#define NCSI_REQ_FLAG_NETLINK_DRIVEN	2
219255 	struct ncsi_dev_priv *ndp;    /* Associated NCSI device          */
220256 	struct sk_buff       *cmd;    /* Associated NCSI command packet  */
221257 	struct sk_buff       *rsp;    /* Associated NCSI response packet */
222258 	struct timer_list    timer;   /* Timer on waiting for response   */
223259 	bool                 enabled; /* Time has been enabled or not    */
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+	u32                  snd_seq;     /* netlink sending sequence number */
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+	u32                  snd_portid;  /* netlink portid of sender        */
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+	struct nlmsghdr      nlhdr;       /* netlink message header          */
224263 };
225264 
226265 enum {
....@@ -229,6 +268,8 @@
229268 	ncsi_dev_state_probe_deselect	= 0x0201,
230269 	ncsi_dev_state_probe_package,
231270 	ncsi_dev_state_probe_channel,
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+	ncsi_dev_state_probe_mlx_gma,
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+	ncsi_dev_state_probe_mlx_smaf,
232273 	ncsi_dev_state_probe_cis,
233274 	ncsi_dev_state_probe_gvi,
234275 	ncsi_dev_state_probe_gc,
....@@ -236,14 +277,13 @@
236277 	ncsi_dev_state_probe_dp,
237278 	ncsi_dev_state_config_sp	= 0x0301,
238279 	ncsi_dev_state_config_cis,
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+	ncsi_dev_state_config_oem_gma,
239281 	ncsi_dev_state_config_clear_vids,
240282 	ncsi_dev_state_config_svf,
241283 	ncsi_dev_state_config_ev,
242284 	ncsi_dev_state_config_sma,
243285 	ncsi_dev_state_config_ebf,
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-#if IS_ENABLED(CONFIG_IPV6)
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-	ncsi_dev_state_config_egmf,
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-#endif
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+	ncsi_dev_state_config_dgmf,
247287 	ncsi_dev_state_config_ecnt,
248288 	ncsi_dev_state_config_ec,
249289 	ncsi_dev_state_config_ae,
....@@ -269,15 +309,13 @@
269309 #define NCSI_DEV_PROBED		1            /* Finalized NCSI topology    */
270310 #define NCSI_DEV_HWA		2            /* Enabled HW arbitration     */
271311 #define NCSI_DEV_RESHUFFLE	4
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+#define NCSI_DEV_RESET		8            /* Reset state of NC          */
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+	unsigned int        gma_flag;        /* OEM GMA flag               */
272314 	spinlock_t          lock;            /* Protect the NCSI device    */
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-#if IS_ENABLED(CONFIG_IPV6)
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-	unsigned int        inet6_addr_num;  /* Number of IPv6 addresses   */
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-#endif
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+	unsigned int        package_probe_id;/* Current ID during probe    */
276316 	unsigned int        package_num;     /* Number of packages         */
277317 	struct list_head    packages;        /* List of packages           */
278318 	struct ncsi_channel *hot_channel;    /* Channel was ever active    */
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-	struct ncsi_package *force_package;  /* Force a specific package   */
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-	struct ncsi_channel *force_channel;  /* Force a specific channel   */
281319 	struct ncsi_request requests[256];   /* Request table              */
282320 	unsigned int        request_id;      /* Last used request ID       */
283321 #define NCSI_REQ_START_IDX	1
....@@ -290,6 +328,10 @@
290328 	struct list_head    node;            /* Form NCSI device list      */
291329 #define NCSI_MAX_VLAN_VIDS	15
292330 	struct list_head    vlan_vids;       /* List of active VLAN IDs */
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+
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+	bool                multi_package;   /* Enable multiple packages   */
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+	bool                mlx_multi_host;  /* Enable multi host Mellanox */
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+	u32                 package_whitelist; /* Packages to configure    */
293335 };
294336 
295337 struct ncsi_cmd_arg {
....@@ -305,6 +347,8 @@
305347 		unsigned short words[8];
306348 		unsigned int   dwords[4];
307349 	};
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+	unsigned char        *data;       /* NCSI OEM data                 */
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+	struct genl_info     *info;       /* Netlink information           */
308352 };
309353 
310354 extern struct list_head ncsi_dev_list;
....@@ -320,6 +364,7 @@
320364 	list_for_each_entry_rcu(nc, &np->channels, node)
321365 
322366 /* Resources */
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+int ncsi_reset_dev(struct ncsi_dev *nd);
323368 void ncsi_start_channel_monitor(struct ncsi_channel *nc);
324369 void ncsi_stop_channel_monitor(struct ncsi_channel *nc);
325370 struct ncsi_channel *ncsi_find_channel(struct ncsi_package *np,
....@@ -340,6 +385,13 @@
340385 void ncsi_free_request(struct ncsi_request *nr);
341386 struct ncsi_dev *ncsi_find_dev(struct net_device *dev);
342387 int ncsi_process_next_channel(struct ncsi_dev_priv *ndp);
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+bool ncsi_channel_has_link(struct ncsi_channel *channel);
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+bool ncsi_channel_is_last(struct ncsi_dev_priv *ndp,
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+			  struct ncsi_channel *channel);
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+int ncsi_update_tx_channel(struct ncsi_dev_priv *ndp,
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+			   struct ncsi_package *np,
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+			   struct ncsi_channel *disable,
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+			   struct ncsi_channel *enable);
343395 
344396 /* Packet handlers */
345397 u32 ncsi_calculate_checksum(unsigned char *data, int len);