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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright (c) 2018-2025 Advanced Micro Devices, Inc. All rights reserved.
*/
#include "ionic.h"
#include "ionic_dv.h"
uint8_t ionic_dv_ctx_get_udma_count(struct ibv_context *ibctx)
{
if (!is_ionic_ctx(ibctx))
return 0;
return to_ionic_ctx(ibctx)->udma_count;
}
uint8_t ionic_dv_ctx_get_udma_mask(struct ibv_context *ibctx)
{
if (!is_ionic_ctx(ibctx))
return 0;
return ionic_ctx_udma_mask(to_ionic_ctx(ibctx));
}
uint8_t ionic_dv_pd_get_udma_mask(struct ibv_pd *ibpd)
{
if (!is_ionic_pd(ibpd))
return 0;
return to_ionic_pd(ibpd)->udma_mask;
}
int ionic_dv_pd_set_udma_mask(struct ibv_pd *ibpd, uint8_t udma_mask)
{
if (!is_ionic_pd(ibpd))
return EPERM;
if (udma_mask & ~ionic_ctx_udma_mask(to_ionic_ctx(ibpd->context)))
return EINVAL;
to_ionic_pd(ibpd)->udma_mask = udma_mask;
return 0;
}
static uint8_t ionic_dv_cmb_val(bool enable, bool expdb, bool require)
{
uint8_t cmb = 0;
if (enable) {
cmb = IONIC_CMB_ENABLE;
if (expdb)
cmb |= IONIC_CMB_EXPDB;
if (require)
cmb |= IONIC_CMB_REQUIRE;
}
return cmb;
}
int ionic_dv_pd_set_sqcmb(struct ibv_pd *ibpd, bool enable, bool expdb, bool require)
{
struct ionic_ctx *ctx;
struct ionic_pd *pd;
if (!is_ionic_pd(ibpd))
return EPERM;
ctx = to_ionic_ctx(ibpd->context);
pd = to_ionic_pd(ibpd);
if (enable && expdb) {
if (require && !ctx->sq_expdb)
return EINVAL;
expdb = ctx->sq_expdb;
}
pd->sq_cmb = ionic_dv_cmb_val(enable, expdb, require);
return 0;
}
int ionic_dv_pd_set_rqcmb(struct ibv_pd *ibpd, bool enable, bool expdb, bool require)
{
struct ionic_ctx *ctx;
struct ionic_pd *pd;
if (!is_ionic_pd(ibpd))
return EPERM;
ctx = to_ionic_ctx(ibpd->context);
pd = to_ionic_pd(ibpd);
if (enable && expdb) {
if (require && !ctx->rq_expdb)
return EINVAL;
expdb = ctx->rq_expdb;
}
pd->rq_cmb = ionic_dv_cmb_val(enable, expdb, require);
return 0;
}
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