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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.
*/
#include <linux/types.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "rvu.h"
#include "cgx.h"
#include "rvu_reg.h"
#include "rvu_trace.h"
struct cgx_evq_entry {
struct list_head evq_node;
struct cgx_link_event link_event;
};
#define M(_name, _id, _fn_name, _req_type, _rsp_type) \
static struct _req_type __maybe_unused \
*otx2_mbox_alloc_msg_ ## _fn_name(struct rvu *rvu, int devid) \
{ \
struct _req_type *req; \
\
req = (struct _req_type *)otx2_mbox_alloc_msg_rsp( \
&rvu->afpf_wq_info.mbox_up, devid, sizeof(struct _req_type), \
sizeof(struct _rsp_type)); \
if (!req) \
return NULL; \
req->hdr.sig = OTX2_MBOX_REQ_SIG; \
req->hdr.id = _id; \
trace_otx2_msg_alloc(rvu->pdev, _id, sizeof(*req)); \
return req; \
}
MBOX_UP_CGX_MESSAGES
#undef M
/* Returns bitmap of mapped PFs */
static u16 cgxlmac_to_pfmap(struct rvu *rvu, u8 cgx_id, u8 lmac_id)
{
return rvu->cgxlmac2pf_map[CGX_OFFSET(cgx_id) + lmac_id];
}
static int cgxlmac_to_pf(struct rvu *rvu, int cgx_id, int lmac_id)
{
unsigned long pfmap;
pfmap = cgxlmac_to_pfmap(rvu, cgx_id, lmac_id);
/* Assumes only one pf mapped to a cgx lmac port */
if (!pfmap)
return -ENODEV;
else
return find_first_bit(&pfmap, 16);
}
static u8 cgxlmac_id_to_bmap(u8 cgx_id, u8 lmac_id)
{
return ((cgx_id & 0xF) << 4) | (lmac_id & 0xF);
}
void *rvu_cgx_pdata(u8 cgx_id, struct rvu *rvu)
{
if (cgx_id >= rvu->cgx_cnt_max)
return NULL;
return rvu->cgx_idmap[cgx_id];
}
/* Based on P2X connectivity find mapped NIX block for a PF */
static void rvu_map_cgx_nix_block(struct rvu *rvu, int pf,
int cgx_id, int lmac_id)
{
struct rvu_pfvf *pfvf = &rvu->pf[pf];
u8 p2x;
p2x = cgx_lmac_get_p2x(cgx_id, lmac_id);
/* Firmware sets P2X_SELECT as either NIX0 or NIX1 */
pfvf->nix_blkaddr = BLKADDR_NIX0;
if (p2x == CMR_P2X_SEL_NIX1)
pfvf->nix_blkaddr = BLKADDR_NIX1;
}
static int rvu_map_cgx_lmac_pf(struct rvu *rvu)
{
struct npc_pkind *pkind = &rvu->hw->pkind;
int cgx_cnt_max = rvu->cgx_cnt_max;
int cgx, lmac_cnt, lmac;
int pf = PF_CGXMAP_BASE;
int size, free_pkind;
if (!cgx_cnt_max)
return 0;
if (cgx_cnt_max > 0xF || MAX_LMAC_PER_CGX > 0xF)
return -EINVAL;
/* Alloc map table
* An additional entry is required since PF id starts from 1 and
* hence entry at offset 0 is invalid.
*/
size = (cgx_cnt_max * MAX_LMAC_PER_CGX + 1) * sizeof(u8);
rvu->pf2cgxlmac_map = devm_kmalloc(rvu->dev, size, GFP_KERNEL);
if (!rvu->pf2cgxlmac_map)
return -ENOMEM;
/* Initialize all entries with an invalid cgx and lmac id */
memset(rvu->pf2cgxlmac_map, 0xFF, size);
/* Reverse map table */
rvu->cgxlmac2pf_map = devm_kzalloc(rvu->dev,
cgx_cnt_max * MAX_LMAC_PER_CGX * sizeof(u16),
GFP_KERNEL);
if (!rvu->cgxlmac2pf_map)
return -ENOMEM;
rvu->cgx_mapped_pfs = 0;
for (cgx = 0; cgx < cgx_cnt_max; cgx++) {
if (!rvu_cgx_pdata(cgx, rvu))
continue;
lmac_cnt = cgx_get_lmac_cnt(rvu_cgx_pdata(cgx, rvu));
for (lmac = 0; lmac < lmac_cnt; lmac++, pf++) {
rvu->pf2cgxlmac_map[pf] = cgxlmac_id_to_bmap(cgx, lmac);
rvu->cgxlmac2pf_map[CGX_OFFSET(cgx) + lmac] = 1 << pf;
free_pkind = rvu_alloc_rsrc(&pkind->rsrc);
pkind->pfchan_map[free_pkind] = ((pf) & 0x3F) << 16;
rvu_map_cgx_nix_block(rvu, pf, cgx, lmac);
rvu->cgx_mapped_pfs++;
}
}
return 0;
}
static int rvu_cgx_send_link_info(int cgx_id, int lmac_id, struct rvu *rvu)
{
struct cgx_evq_entry *qentry;
unsigned long flags;
int err;
qentry = kmalloc(sizeof(*qentry), GFP_KERNEL);
if (!qentry)
return -ENOMEM;
/* Lock the event queue before we read the local link status */
spin_lock_irqsave(&rvu->cgx_evq_lock, flags);
err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
&qentry->link_event.link_uinfo);
qentry->link_event.cgx_id = cgx_id;
qentry->link_event.lmac_id = lmac_id;
if (err)
goto skip_add;
list_add_tail(&qentry->evq_node, &rvu->cgx_evq_head);
skip_add:
spin_unlock_irqrestore(&rvu->cgx_evq_lock, flags);
/* start worker to process the events */
queue_work(rvu->cgx_evh_wq, &rvu->cgx_evh_work);
return 0;
}
/* This is called from interrupt context and is expected to be atomic */
static int cgx_lmac_postevent(struct cgx_link_event *event, void *data)
{
struct cgx_evq_entry *qentry;
struct rvu *rvu = data;
/* post event to the event queue */
qentry = kmalloc(sizeof(*qentry), GFP_ATOMIC);
if (!qentry)
return -ENOMEM;
qentry->link_event = *event;
spin_lock(&rvu->cgx_evq_lock);
list_add_tail(&qentry->evq_node, &rvu->cgx_evq_head);
spin_unlock(&rvu->cgx_evq_lock);
/* start worker to process the events */
queue_work(rvu->cgx_evh_wq, &rvu->cgx_evh_work);
return 0;
}
static void cgx_notify_pfs(struct cgx_link_event *event, struct rvu *rvu)
{
struct cgx_link_user_info *linfo;
struct cgx_link_info_msg *msg;
unsigned long pfmap;
int err, pfid;
linfo = &event->link_uinfo;
pfmap = cgxlmac_to_pfmap(rvu, event->cgx_id, event->lmac_id);
do {
pfid = find_first_bit(&pfmap, 16);
clear_bit(pfid, &pfmap);
/* check if notification is enabled */
if (!test_bit(pfid, &rvu->pf_notify_bmap)) {
dev_info(rvu->dev, "cgx %d: lmac %d Link status %s\n",
event->cgx_id, event->lmac_id,
linfo->link_up ? "UP" : "DOWN");
continue;
}
/* Send mbox message to PF */
msg = otx2_mbox_alloc_msg_cgx_link_event(rvu, pfid);
if (!msg)
continue;
msg->link_info = *linfo;
otx2_mbox_msg_send(&rvu->afpf_wq_info.mbox_up, pfid);
err = otx2_mbox_wait_for_rsp(&rvu->afpf_wq_info.mbox_up, pfid);
if (err)
dev_warn(rvu->dev, "notification to pf %d failed\n",
pfid);
} while (pfmap);
}
static void cgx_evhandler_task(struct work_struct *work)
{
struct rvu *rvu = container_of(work, struct rvu, cgx_evh_work);
struct cgx_evq_entry *qentry;
struct cgx_link_event *event;
unsigned long flags;
do {
/* Dequeue an event */
spin_lock_irqsave(&rvu->cgx_evq_lock, flags);
qentry = list_first_entry_or_null(&rvu->cgx_evq_head,
struct cgx_evq_entry,
evq_node);
if (qentry)
list_del(&qentry->evq_node);
spin_unlock_irqrestore(&rvu->cgx_evq_lock, flags);
if (!qentry)
break; /* nothing more to process */
event = &qentry->link_event;
/* process event */
cgx_notify_pfs(event, rvu);
kfree(qentry);
} while (1);
}
static int cgx_lmac_event_handler_init(struct rvu *rvu)
{
struct cgx_event_cb cb;
int cgx, lmac, err;
void *cgxd;
spin_lock_init(&rvu->cgx_evq_lock);
INIT_LIST_HEAD(&rvu->cgx_evq_head);
INIT_WORK(&rvu->cgx_evh_work, cgx_evhandler_task);
rvu->cgx_evh_wq = alloc_workqueue("rvu_evh_wq", 0, 0);
if (!rvu->cgx_evh_wq) {
dev_err(rvu->dev, "alloc workqueue failed");
return -ENOMEM;
}
cb.notify_link_chg = cgx_lmac_postevent; /* link change call back */
cb.data = rvu;
for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) {
cgxd = rvu_cgx_pdata(cgx, rvu);
if (!cgxd)
continue;
for (lmac = 0; lmac < cgx_get_lmac_cnt(cgxd); lmac++) {
err = cgx_lmac_evh_register(&cb, cgxd, lmac);
if (err)
dev_err(rvu->dev,
"%d:%d handler register failed\n",
cgx, lmac);
}
}
return 0;
}
static void rvu_cgx_wq_destroy(struct rvu *rvu)
{
if (rvu->cgx_evh_wq) {
flush_workqueue(rvu->cgx_evh_wq);
destroy_workqueue(rvu->cgx_evh_wq);
rvu->cgx_evh_wq = NULL;
}
}
int rvu_cgx_init(struct rvu *rvu)
{
int cgx, err;
void *cgxd;
/* CGX port id starts from 0 and are not necessarily contiguous
* Hence we allocate resources based on the maximum port id value.
*/
rvu->cgx_cnt_max = cgx_get_cgxcnt_max();
if (!rvu->cgx_cnt_max) {
dev_info(rvu->dev, "No CGX devices found!\n");
return -ENODEV;
}
rvu->cgx_idmap = devm_kzalloc(rvu->dev, rvu->cgx_cnt_max *
sizeof(void *), GFP_KERNEL);
if (!rvu->cgx_idmap)
return -ENOMEM;
/* Initialize the cgxdata table */
for (cgx = 0; cgx < rvu->cgx_cnt_max; cgx++)
rvu->cgx_idmap[cgx] = cgx_get_pdata(cgx);
/* Map CGX LMAC interfaces to RVU PFs */
err = rvu_map_cgx_lmac_pf(rvu);
if (err)
return err;
/* Register for CGX events */
err = cgx_lmac_event_handler_init(rvu);
if (err)
return err;
mutex_init(&rvu->cgx_cfg_lock);
/* Ensure event handler registration is completed, before
* we turn on the links
*/
mb();
/* Do link up for all CGX ports */
for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) {
cgxd = rvu_cgx_pdata(cgx, rvu);
if (!cgxd)
continue;
err = cgx_lmac_linkup_start(cgxd);
if (err)
dev_err(rvu->dev,
"Link up process failed to start on cgx %d\n",
cgx);
}
return 0;
}
int rvu_cgx_exit(struct rvu *rvu)
{
int cgx, lmac;
void *cgxd;
for (cgx = 0; cgx <= rvu->cgx_cnt_max; cgx++) {
cgxd = rvu_cgx_pdata(cgx, rvu);
if (!cgxd)
continue;
for (lmac = 0; lmac < cgx_get_lmac_cnt(cgxd); lmac++)
cgx_lmac_evh_unregister(cgxd, lmac);
}
/* Ensure event handler unregister is completed */
mb();
rvu_cgx_wq_destroy(rvu);
return 0;
}
/* Most of the CGX configuration is restricted to the mapped PF only,
* VF's of mapped PF and other PFs are not allowed. This fn() checks
* whether a PFFUNC is permitted to do the config or not.
*/
static bool is_cgx_config_permitted(struct rvu *rvu, u16 pcifunc)
{
if ((pcifunc & RVU_PFVF_FUNC_MASK) ||
!is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc)))
return false;
return true;
}
void rvu_cgx_enadis_rx_bp(struct rvu *rvu, int pf, bool enable)
{
u8 cgx_id, lmac_id;
void *cgxd;
if (!is_pf_cgxmapped(rvu, pf))
return;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
cgxd = rvu_cgx_pdata(cgx_id, rvu);
/* Set / clear CTL_BCK to control pause frame forwarding to NIX */
if (enable)
cgx_lmac_enadis_rx_pause_fwding(cgxd, lmac_id, true);
else
cgx_lmac_enadis_rx_pause_fwding(cgxd, lmac_id, false);
}
int rvu_cgx_config_rxtx(struct rvu *rvu, u16 pcifunc, bool start)
{
int pf = rvu_get_pf(pcifunc);
u8 cgx_id, lmac_id;
if (!is_cgx_config_permitted(rvu, pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
cgx_lmac_rx_tx_enable(rvu_cgx_pdata(cgx_id, rvu), lmac_id, start);
return 0;
}
int rvu_mbox_handler_cgx_start_rxtx(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, true);
return 0;
}
int rvu_mbox_handler_cgx_stop_rxtx(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
rvu_cgx_config_rxtx(rvu, req->hdr.pcifunc, false);
return 0;
}
int rvu_mbox_handler_cgx_stats(struct rvu *rvu, struct msg_req *req,
struct cgx_stats_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
int stat = 0, err = 0;
u64 tx_stat, rx_stat;
u8 cgx_idx, lmac;
void *cgxd;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -ENODEV;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
cgxd = rvu_cgx_pdata(cgx_idx, rvu);
/* Rx stats */
while (stat < CGX_RX_STATS_COUNT) {
err = cgx_get_rx_stats(cgxd, lmac, stat, &rx_stat);
if (err)
return err;
rsp->rx_stats[stat] = rx_stat;
stat++;
}
/* Tx stats */
stat = 0;
while (stat < CGX_TX_STATS_COUNT) {
err = cgx_get_tx_stats(cgxd, lmac, stat, &tx_stat);
if (err)
return err;
rsp->tx_stats[stat] = tx_stat;
stat++;
}
return 0;
}
int rvu_mbox_handler_cgx_fec_stats(struct rvu *rvu,
struct msg_req *req,
struct cgx_fec_stats_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_idx, lmac;
void *cgxd;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_idx, &lmac);
cgxd = rvu_cgx_pdata(cgx_idx, rvu);
return cgx_get_fec_stats(cgxd, lmac, rsp);
}
int rvu_mbox_handler_cgx_mac_addr_set(struct rvu *rvu,
struct cgx_mac_addr_set_or_get *req,
struct cgx_mac_addr_set_or_get *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
cgx_lmac_addr_set(cgx_id, lmac_id, req->mac_addr);
return 0;
}
int rvu_mbox_handler_cgx_mac_addr_get(struct rvu *rvu,
struct cgx_mac_addr_set_or_get *req,
struct cgx_mac_addr_set_or_get *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
int rc = 0, i;
u64 cfg;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
rsp->hdr.rc = rc;
cfg = cgx_lmac_addr_get(cgx_id, lmac_id);
/* copy 48 bit mac address to req->mac_addr */
for (i = 0; i < ETH_ALEN; i++)
rsp->mac_addr[i] = cfg >> (ETH_ALEN - 1 - i) * 8;
return 0;
}
int rvu_mbox_handler_cgx_promisc_enable(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
u16 pcifunc = req->hdr.pcifunc;
int pf = rvu_get_pf(pcifunc);
u8 cgx_id, lmac_id;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
cgx_lmac_promisc_config(cgx_id, lmac_id, true);
return 0;
}
int rvu_mbox_handler_cgx_promisc_disable(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
if (!is_cgx_config_permitted(rvu, req->hdr.pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
cgx_lmac_promisc_config(cgx_id, lmac_id, false);
return 0;
}
static int rvu_cgx_ptp_rx_cfg(struct rvu *rvu, u16 pcifunc, bool enable)
{
int pf = rvu_get_pf(pcifunc);
u8 cgx_id, lmac_id;
void *cgxd;
/* This msg is expected only from PFs that are mapped to CGX LMACs,
* if received from other PF/VF simply ACK, nothing to do.
*/
if ((pcifunc & RVU_PFVF_FUNC_MASK) ||
!is_pf_cgxmapped(rvu, pf))
return -ENODEV;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
cgxd = rvu_cgx_pdata(cgx_id, rvu);
cgx_lmac_ptp_config(cgxd, lmac_id, enable);
/* If PTP is enabled then inform NPC that packets to be
* parsed by this PF will have their data shifted by 8 bytes
* and if PTP is disabled then no shift is required
*/
if (npc_config_ts_kpuaction(rvu, pf, pcifunc, enable))
return -EINVAL;
return 0;
}
int rvu_mbox_handler_cgx_ptp_rx_enable(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, true);
}
int rvu_mbox_handler_cgx_ptp_rx_disable(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
return rvu_cgx_ptp_rx_cfg(rvu, req->hdr.pcifunc, false);
}
static int rvu_cgx_config_linkevents(struct rvu *rvu, u16 pcifunc, bool en)
{
int pf = rvu_get_pf(pcifunc);
u8 cgx_id, lmac_id;
if (!is_cgx_config_permitted(rvu, pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
if (en) {
set_bit(pf, &rvu->pf_notify_bmap);
/* Send the current link status to PF */
rvu_cgx_send_link_info(cgx_id, lmac_id, rvu);
} else {
clear_bit(pf, &rvu->pf_notify_bmap);
}
return 0;
}
int rvu_mbox_handler_cgx_start_linkevents(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, true);
return 0;
}
int rvu_mbox_handler_cgx_stop_linkevents(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
rvu_cgx_config_linkevents(rvu, req->hdr.pcifunc, false);
return 0;
}
int rvu_mbox_handler_cgx_get_linkinfo(struct rvu *rvu, struct msg_req *req,
struct cgx_link_info_msg *rsp)
{
u8 cgx_id, lmac_id;
int pf, err;
pf = rvu_get_pf(req->hdr.pcifunc);
if (!is_pf_cgxmapped(rvu, pf))
return -ENODEV;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
err = cgx_get_link_info(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
&rsp->link_info);
return err;
}
static int rvu_cgx_config_intlbk(struct rvu *rvu, u16 pcifunc, bool en)
{
int pf = rvu_get_pf(pcifunc);
u8 cgx_id, lmac_id;
if (!is_cgx_config_permitted(rvu, pcifunc))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
return cgx_lmac_internal_loopback(rvu_cgx_pdata(cgx_id, rvu),
lmac_id, en);
}
int rvu_mbox_handler_cgx_intlbk_enable(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, true);
return 0;
}
int rvu_mbox_handler_cgx_intlbk_disable(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
rvu_cgx_config_intlbk(rvu, req->hdr.pcifunc, false);
return 0;
}
int rvu_mbox_handler_cgx_cfg_pause_frm(struct rvu *rvu,
struct cgx_pause_frm_cfg *req,
struct cgx_pause_frm_cfg *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
/* This msg is expected only from PF/VFs that are mapped to CGX LMACs,
* if received from other PF/VF simply ACK, nothing to do.
*/
if (!is_pf_cgxmapped(rvu, pf))
return -ENODEV;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
if (req->set)
cgx_lmac_set_pause_frm(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
req->tx_pause, req->rx_pause);
else
cgx_lmac_get_pause_frm(rvu_cgx_pdata(cgx_id, rvu), lmac_id,
&rsp->tx_pause, &rsp->rx_pause);
return 0;
}
int rvu_mbox_handler_cgx_get_phy_fec_stats(struct rvu *rvu, struct msg_req *req,
struct msg_rsp *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
if (!is_pf_cgxmapped(rvu, pf))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
return cgx_get_phy_fec_stats(rvu_cgx_pdata(cgx_id, rvu), lmac_id);
}
/* Finds cumulative status of NIX rx/tx counters from LF of a PF and those
* from its VFs as well. ie. NIX rx/tx counters at the CGX port level
*/
int rvu_cgx_nix_cuml_stats(struct rvu *rvu, void *cgxd, int lmac_id,
int index, int rxtxflag, u64 *stat)
{
struct rvu_block *block;
int blkaddr;
u16 pcifunc;
int pf, lf;
*stat = 0;
if (!cgxd || !rvu)
return -EINVAL;
pf = cgxlmac_to_pf(rvu, cgx_get_cgxid(cgxd), lmac_id);
if (pf < 0)
return pf;
/* Assumes LF of a PF and all of its VF belongs to the same
* NIX block
*/
pcifunc = pf << RVU_PFVF_PF_SHIFT;
blkaddr = rvu_get_blkaddr(rvu, BLKTYPE_NIX, pcifunc);
if (blkaddr < 0)
return 0;
block = &rvu->hw->block[blkaddr];
for (lf = 0; lf < block->lf.max; lf++) {
/* Check if a lf is attached to this PF or one of its VFs */
if (!((block->fn_map[lf] & ~RVU_PFVF_FUNC_MASK) == (pcifunc &
~RVU_PFVF_FUNC_MASK)))
continue;
if (rxtxflag == NIX_STATS_RX)
*stat += rvu_read64(rvu, blkaddr,
NIX_AF_LFX_RX_STATX(lf, index));
else
*stat += rvu_read64(rvu, blkaddr,
NIX_AF_LFX_TX_STATX(lf, index));
}
return 0;
}
int rvu_cgx_start_stop_io(struct rvu *rvu, u16 pcifunc, bool start)
{
struct rvu_pfvf *parent_pf, *pfvf;
int cgx_users, err = 0;
if (!is_pf_cgxmapped(rvu, rvu_get_pf(pcifunc)))
return 0;
parent_pf = &rvu->pf[rvu_get_pf(pcifunc)];
pfvf = rvu_get_pfvf(rvu, pcifunc);
mutex_lock(&rvu->cgx_cfg_lock);
if (start && pfvf->cgx_in_use)
goto exit; /* CGX is already started hence nothing to do */
if (!start && !pfvf->cgx_in_use)
goto exit; /* CGX is already stopped hence nothing to do */
if (start) {
cgx_users = parent_pf->cgx_users;
parent_pf->cgx_users++;
} else {
parent_pf->cgx_users--;
cgx_users = parent_pf->cgx_users;
}
/* Start CGX when first of all NIXLFs is started.
* Stop CGX when last of all NIXLFs is stopped.
*/
if (!cgx_users) {
err = rvu_cgx_config_rxtx(rvu, pcifunc & ~RVU_PFVF_FUNC_MASK,
start);
if (err) {
dev_err(rvu->dev, "Unable to %s CGX\n",
start ? "start" : "stop");
/* Revert the usage count in case of error */
parent_pf->cgx_users = start ? parent_pf->cgx_users - 1
: parent_pf->cgx_users + 1;
goto exit;
}
}
pfvf->cgx_in_use = start;
exit:
mutex_unlock(&rvu->cgx_cfg_lock);
return err;
}
int rvu_mbox_handler_cgx_set_fec_param(struct rvu *rvu,
struct fec_mode *req,
struct fec_mode *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
if (!is_pf_cgxmapped(rvu, pf))
return -EPERM;
if (req->fec == OTX2_FEC_OFF)
req->fec = OTX2_FEC_NONE;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
rsp->fec = cgx_set_fec(req->fec, cgx_id, lmac_id);
return 0;
}
int rvu_mbox_handler_cgx_get_aux_link_info(struct rvu *rvu, struct msg_req *req,
struct cgx_fw_data *rsp)
{
int pf = rvu_get_pf(req->hdr.pcifunc);
u8 cgx_id, lmac_id;
if (!rvu->fwdata)
return -ENXIO;
if (!is_pf_cgxmapped(rvu, pf))
return -EPERM;
rvu_get_cgx_lmac_id(rvu->pf2cgxlmac_map[pf], &cgx_id, &lmac_id);
memcpy(&rsp->fwdata, &rvu->fwdata->cgx_fw_data[cgx_id][lmac_id],
sizeof(struct cgx_lmac_fwdata_s));
return 0;
}
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