linux/drivers/net/ethernet/marvell/octeontx2/af/rvu_npa.c

// SPDX-License-Identifier: GPL-2.0
/* Marvell RVU Admin Function driver
 *
 * Copyright (C) 2018 Marvell.
 *
 */
#include <linux/bitfield.h>
#include <linux/module.h>
#include <linux/pci.h>

#include "rvu_struct.h"
#include "rvu_reg.h"
#include "rvu.h"

static int npa_aq_enqueue_wait(struct rvu *rvu, struct rvu_block *block,
			       struct npa_aq_inst_s *inst)
{ … }

int rvu_npa_aq_enq_inst(struct rvu *rvu, struct npa_aq_enq_req *req,
			struct npa_aq_enq_rsp *rsp)
{ … }

static int npa_lf_hwctx_disable(struct rvu *rvu, struct hwctx_disable_req *req)
{ … }

#ifdef CONFIG_NDC_DIS_DYNAMIC_CACHING
static int npa_lf_hwctx_lockdown(struct rvu *rvu, struct npa_aq_enq_req *req)
{ … }

int rvu_mbox_handler_npa_aq_enq(struct rvu *rvu,
				struct npa_aq_enq_req *req,
				struct npa_aq_enq_rsp *rsp)
{ … }
#else

int rvu_mbox_handler_npa_aq_enq(struct rvu *rvu,
				struct npa_aq_enq_req *req,
				struct npa_aq_enq_rsp *rsp)
{
	return rvu_npa_aq_enq_inst(rvu, req, rsp);
}
#endif

int rvu_mbox_handler_npa_hwctx_disable(struct rvu *rvu,
				       struct hwctx_disable_req *req,
				       struct msg_rsp *rsp)
{ … }

static void npa_ctx_free(struct rvu *rvu, struct rvu_pfvf *pfvf)
{ … }

int rvu_mbox_handler_npa_lf_alloc(struct rvu *rvu,
				  struct npa_lf_alloc_req *req,
				  struct npa_lf_alloc_rsp *rsp)
{ … }

int rvu_mbox_handler_npa_lf_free(struct rvu *rvu, struct msg_req *req,
				 struct msg_rsp *rsp)
{ … }

static int npa_aq_init(struct rvu *rvu, struct rvu_block *block)
{ … }

int rvu_npa_init(struct rvu *rvu)
{ … }

void rvu_npa_freemem(struct rvu *rvu)
{ … }

void rvu_npa_lf_teardown(struct rvu *rvu, u16 pcifunc, int npalf)
{ … }

/* Due to an Hardware errata, in some corner cases, AQ context lock
 * operations can result in a NDC way getting into an illegal state
 * of not valid but locked.
 *
 * This API solves the problem by clearing the lock bit of the NDC block.
 * The operation needs to be done for each line of all the NDC banks.
 */
int rvu_ndc_fix_locked_cacheline(struct rvu *rvu, int blkaddr)
{ … }