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96be2e0da8
linux_dsm_epyc7002/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
Vidhya Raman 96be2e0da8 octeontx2-af: Support for MAC address filters in CGX 
This patch adds support for setting MAC address filters in CGX
for PF interfaces. Also PF interfaces can be put in promiscuous
mode. Dataplane PFs access this functionality using mailbox
messages to the AF driver.

Signed-off-by: Vidhya Raman <vraman@marvell.com>
Signed-off-by: Stanislaw Kardach <skardach@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-17 21:33:42 -07:00

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/* SPDX-License-Identifier: GPL-2.0
* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef MBOX_H
#define MBOX_H
#include <linux/etherdevice.h>
#include <linux/sizes.h>
#include "rvu_struct.h"
#define MBOX_SIZE SZ_64K
/* AF/PF: PF initiated, PF/VF VF initiated */
#define MBOX_DOWN_RX_START 0
#define MBOX_DOWN_RX_SIZE (46 * SZ_1K)
#define MBOX_DOWN_TX_START (MBOX_DOWN_RX_START + MBOX_DOWN_RX_SIZE)
#define MBOX_DOWN_TX_SIZE (16 * SZ_1K)
/* AF/PF: AF initiated, PF/VF PF initiated */
#define MBOX_UP_RX_START (MBOX_DOWN_TX_START + MBOX_DOWN_TX_SIZE)
#define MBOX_UP_RX_SIZE SZ_1K
#define MBOX_UP_TX_START (MBOX_UP_RX_START + MBOX_UP_RX_SIZE)
#define MBOX_UP_TX_SIZE SZ_1K
#if MBOX_UP_TX_SIZE + MBOX_UP_TX_START != MBOX_SIZE
# error "incorrect mailbox area sizes"
#endif
#define INTR_MASK(pfvfs) ((pfvfs < 64) ? (BIT_ULL(pfvfs) - 1) : (~0ull))
#define MBOX_RSP_TIMEOUT 1000 /* in ms, Time to wait for mbox response */
#define MBOX_MSG_ALIGN 16 /* Align mbox msg start to 16bytes */
/* Mailbox directions */
#define MBOX_DIR_AFPF 0 /* AF replies to PF */
#define MBOX_DIR_PFAF 1 /* PF sends messages to AF */
#define MBOX_DIR_PFVF 2 /* PF replies to VF */
#define MBOX_DIR_VFPF 3 /* VF sends messages to PF */
#define MBOX_DIR_AFPF_UP 4 /* AF sends messages to PF */
#define MBOX_DIR_PFAF_UP 5 /* PF replies to AF */
#define MBOX_DIR_PFVF_UP 6 /* PF sends messages to VF */
#define MBOX_DIR_VFPF_UP 7 /* VF replies to PF */
struct otx2_mbox_dev {
void *mbase; /* This dev's mbox region */
spinlock_t mbox_lock;
u16 msg_size; /* Total msg size to be sent */
u16 rsp_size; /* Total rsp size to be sure the reply is ok */
u16 num_msgs; /* No of msgs sent or waiting for response */
u16 msgs_acked; /* No of msgs for which response is received */
};
struct otx2_mbox {
struct pci_dev *pdev;
void *hwbase; /* Mbox region advertised by HW */
void *reg_base;/* CSR base for this dev */
u64 trigger; /* Trigger mbox notification */
u16 tr_shift; /* Mbox trigger shift */
u64 rx_start; /* Offset of Rx region in mbox memory */
u64 tx_start; /* Offset of Tx region in mbox memory */
u16 rx_size; /* Size of Rx region */
u16 tx_size; /* Size of Tx region */
u16 ndevs; /* The number of peers */
struct otx2_mbox_dev *dev;
};
/* Header which preceeds all mbox messages */
struct mbox_hdr {
u16 num_msgs; /* No of msgs embedded */
};
/* Header which preceeds every msg and is also part of it */
struct mbox_msghdr {
u16 pcifunc; /* Who's sending this msg */
u16 id; /* Mbox message ID */
#define OTX2_MBOX_REQ_SIG (0xdead)
#define OTX2_MBOX_RSP_SIG (0xbeef)
u16 sig; /* Signature, for validating corrupted msgs */
#define OTX2_MBOX_VERSION (0x0001)
u16 ver; /* Version of msg's structure for this ID */
u16 next_msgoff; /* Offset of next msg within mailbox region */
int rc; /* Msg process'ed response code */
};
void otx2_mbox_reset(struct otx2_mbox *mbox, int devid);
void otx2_mbox_destroy(struct otx2_mbox *mbox);
int otx2_mbox_init(struct otx2_mbox *mbox, void __force *hwbase,
struct pci_dev *pdev, void __force *reg_base,
int direction, int ndevs);
void otx2_mbox_msg_send(struct otx2_mbox *mbox, int devid);
int otx2_mbox_wait_for_rsp(struct otx2_mbox *mbox, int devid);
int otx2_mbox_busy_poll_for_rsp(struct otx2_mbox *mbox, int devid);
struct mbox_msghdr *otx2_mbox_alloc_msg_rsp(struct otx2_mbox *mbox, int devid,
int size, int size_rsp);
struct mbox_msghdr *otx2_mbox_get_rsp(struct otx2_mbox *mbox, int devid,
struct mbox_msghdr *msg);
int otx2_reply_invalid_msg(struct otx2_mbox *mbox, int devid,
u16 pcifunc, u16 id);
bool otx2_mbox_nonempty(struct otx2_mbox *mbox, int devid);
const char *otx2_mbox_id2name(u16 id);
static inline struct mbox_msghdr *otx2_mbox_alloc_msg(struct otx2_mbox *mbox,
int devid, int size)
{
return otx2_mbox_alloc_msg_rsp(mbox, devid, size, 0);
}
/* Mailbox message types */
#define MBOX_MSG_MASK 0xFFFF
#define MBOX_MSG_INVALID 0xFFFE
#define MBOX_MSG_MAX 0xFFFF
#define MBOX_MESSAGES \
/* Generic mbox IDs (range 0x000 - 0x1FF) */ \
M(READY, 0x001, msg_req, ready_msg_rsp) \
M(ATTACH_RESOURCES, 0x002, rsrc_attach, msg_rsp) \
M(DETACH_RESOURCES, 0x003, rsrc_detach, msg_rsp) \
M(MSIX_OFFSET, 0x004, msg_req, msix_offset_rsp) \
/* CGX mbox IDs (range 0x200 - 0x3FF) */ \
M(CGX_START_RXTX, 0x200, msg_req, msg_rsp) \
M(CGX_STOP_RXTX, 0x201, msg_req, msg_rsp) \
M(CGX_STATS, 0x202, msg_req, cgx_stats_rsp) \
M(CGX_MAC_ADDR_SET, 0x203, cgx_mac_addr_set_or_get, \
cgx_mac_addr_set_or_get) \
M(CGX_MAC_ADDR_GET, 0x204, cgx_mac_addr_set_or_get, \
cgx_mac_addr_set_or_get) \
M(CGX_PROMISC_ENABLE, 0x205, msg_req, msg_rsp) \
M(CGX_PROMISC_DISABLE, 0x206, msg_req, msg_rsp) \
/* NPA mbox IDs (range 0x400 - 0x5FF) */ \
/* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */ \
/* TIM mbox IDs (range 0x800 - 0x9FF) */ \
/* CPT mbox IDs (range 0xA00 - 0xBFF) */ \
/* NPC mbox IDs (range 0x6000 - 0x7FFF) */ \
/* NIX mbox IDs (range 0x8000 - 0xFFFF) */ \
enum {
#define M(_name, _id, _1, _2) MBOX_MSG_ ## _name = _id,
MBOX_MESSAGES
#undef M
};
/* Mailbox message formats */
/* Generic request msg used for those mbox messages which
* don't send any data in the request.
*/
struct msg_req {
struct mbox_msghdr hdr;
};
/* Generic rsponse msg used a ack or response for those mbox
* messages which doesn't have a specific rsp msg format.
*/
struct msg_rsp {
struct mbox_msghdr hdr;
};
struct ready_msg_rsp {
struct mbox_msghdr hdr;
u16 sclk_feq; /* SCLK frequency */
};
/* Structure for requesting resource provisioning.
* 'modify' flag to be used when either requesting more
* or to detach partial of a cetain resource type.
* Rest of the fields specify how many of what type to
* be attached.
*/
struct rsrc_attach {
struct mbox_msghdr hdr;
u8 modify:1;
u8 npalf:1;
u8 nixlf:1;
u16 sso;
u16 ssow;
u16 timlfs;
u16 cptlfs;
};
/* Structure for relinquishing resources.
* 'partial' flag to be used when relinquishing all resources
* but only of a certain type. If not set, all resources of all
* types provisioned to the RVU function will be detached.
*/
struct rsrc_detach {
struct mbox_msghdr hdr;
u8 partial:1;
u8 npalf:1;
u8 nixlf:1;
u8 sso:1;
u8 ssow:1;
u8 timlfs:1;
u8 cptlfs:1;
};
#define MSIX_VECTOR_INVALID 0xFFFF
#define MAX_RVU_BLKLF_CNT 256
struct msix_offset_rsp {
struct mbox_msghdr hdr;
u16 npa_msixoff;
u16 nix_msixoff;
u8 sso;
u8 ssow;
u8 timlfs;
u8 cptlfs;
u16 sso_msixoff[MAX_RVU_BLKLF_CNT];
u16 ssow_msixoff[MAX_RVU_BLKLF_CNT];
u16 timlf_msixoff[MAX_RVU_BLKLF_CNT];
u16 cptlf_msixoff[MAX_RVU_BLKLF_CNT];
};
/* CGX mbox message formats */
struct cgx_stats_rsp {
struct mbox_msghdr hdr;
#define CGX_RX_STATS_COUNT 13
#define CGX_TX_STATS_COUNT 18
u64 rx_stats[CGX_RX_STATS_COUNT];
u64 tx_stats[CGX_TX_STATS_COUNT];
};
/* Structure for requesting the operation for
* setting/getting mac address in the CGX interface
*/
struct cgx_mac_addr_set_or_get {
struct mbox_msghdr hdr;
u8 mac_addr[ETH_ALEN];
};
#endif /* MBOX_H */
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