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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/net/ethernet/netronome/nfp/nfp_abi.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_abi.h')
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_abi.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_abi.h b/drivers/net/ethernet/netronome/nfp/nfp_abi.h
new file mode 100644
index 0000000000..dd359a44ad
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_abi.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (C) 2018 Netronome Systems, Inc. */
+
+#ifndef __NFP_ABI__
+#define __NFP_ABI__ 1
+
+#include <linux/types.h>
+
+#define NFP_MBOX_SYM_NAME "_abi_nfd_pf%u_mbox"
+#define NFP_MBOX_SYM_MIN_SIZE 16 /* When no data needed */
+
+#define NFP_MBOX_CMD 0x00
+#define NFP_MBOX_RET 0x04
+#define NFP_MBOX_DATA_LEN 0x08
+#define NFP_MBOX_RESERVED 0x0c
+#define NFP_MBOX_DATA 0x10
+
+/**
+ * enum nfp_mbox_cmd - PF mailbox commands
+ *
+ * @NFP_MBOX_NO_CMD: null command
+ * Used to indicate previous command has finished.
+ *
+ * @NFP_MBOX_POOL_GET: get shared buffer pool info/config
+ * Input - struct nfp_shared_buf_pool_id
+ * Output - struct nfp_shared_buf_pool_info_get
+ *
+ * @NFP_MBOX_POOL_SET: set shared buffer pool info/config
+ * Input - struct nfp_shared_buf_pool_info_set
+ * Output - None
+ *
+ * @NFP_MBOX_PCIE_ABM_ENABLE: enable PCIe-side advanced buffer management
+ * Enable advanced buffer management of the PCIe block. If ABM is disabled
+ * PCIe block maintains a very short queue of buffers and does tail drop.
+ * ABM allows more advanced buffering and priority control.
+ * Input - None
+ * Output - None
+ *
+ * @NFP_MBOX_PCIE_ABM_DISABLE: disable PCIe-side advanced buffer management
+ * Input - None
+ * Output - None
+ */
+enum nfp_mbox_cmd {
+ NFP_MBOX_NO_CMD = 0x00,
+
+ NFP_MBOX_POOL_GET = 0x01,
+ NFP_MBOX_POOL_SET = 0x02,
+
+ NFP_MBOX_PCIE_ABM_ENABLE = 0x03,
+ NFP_MBOX_PCIE_ABM_DISABLE = 0x04,
+};
+
+#define NFP_SHARED_BUF_COUNT_SYM_NAME "_abi_nfd_pf%u_sb_cnt"
+#define NFP_SHARED_BUF_TABLE_SYM_NAME "_abi_nfd_pf%u_sb_tbl"
+
+/**
+ * struct nfp_shared_buf - NFP shared buffer description
+ * @id: numerical user-visible id of the shared buffer
+ * @size: size in bytes of the buffer
+ * @ingress_pools_count: number of ingress pools
+ * @egress_pools_count: number of egress pools
+ * @ingress_tc_count: number of ingress trafic classes
+ * @egress_tc_count: number of egress trafic classes
+ * @pool_size_unit: pool size may be in credits, each credit is
+ * @pool_size_unit bytes
+ */
+struct nfp_shared_buf {
+ __le32 id;
+ __le32 size;
+ __le16 ingress_pools_count;
+ __le16 egress_pools_count;
+ __le16 ingress_tc_count;
+ __le16 egress_tc_count;
+
+ __le32 pool_size_unit;
+};
+
+/**
+ * struct nfp_shared_buf_pool_id - shared buffer pool identification
+ * @shared_buf: shared buffer id
+ * @pool: pool index
+ */
+struct nfp_shared_buf_pool_id {
+ __le32 shared_buf;
+ __le32 pool;
+};
+
+/**
+ * struct nfp_shared_buf_pool_info_get - struct devlink_sb_pool_info mirror
+ * @pool_type: one of enum devlink_sb_pool_type
+ * @size: pool size in units of SB's @pool_size_unit
+ * @threshold_type: one of enum devlink_sb_threshold_type
+ */
+struct nfp_shared_buf_pool_info_get {
+ __le32 pool_type;
+ __le32 size;
+ __le32 threshold_type;
+};
+
+/**
+ * struct nfp_shared_buf_pool_info_set - packed args of sb_pool_set
+ * @id: pool identification info
+ * @size: pool size in units of SB's @pool_size_unit
+ * @threshold_type: one of enum devlink_sb_threshold_type
+ */
+struct nfp_shared_buf_pool_info_set {
+ struct nfp_shared_buf_pool_id id;
+ __le32 size;
+ __le32 threshold_type;
+};
+
+#endif