numam-dpdk/drivers/common/cnxk/roc_ae.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(C) 2021 Marvell.
 */

#include "roc_api.h"

#define AE_EC_GRP_TBL_NAME "ae_ec_grp_tbl"

struct ae_ec_grp_tbl {
	uint64_t refcount;
	uint8_t ec_grp_tbl[];
};

const struct roc_ae_ec_group ae_ec_grp[ROC_AE_EC_ID_PMAX] = {
	{
		.prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0xFF, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF,
				   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF},
			  .length = 24},
		.order = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0x99, 0xDE, 0xF8, 0x36, 0x14, 0x6B,
				   0xC9, 0xB1, 0xB4, 0xD2, 0x28, 0x31},
			  .length = 24},
	},
	{
		.prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00,
				   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
			  .length = 28},
		.order = {.data = {0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF,
				   0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF, 0XFF,
				   0X16, 0XA2, 0XE0, 0XB8, 0XF0, 0X3E, 0X13,
				   0XDD, 0X29, 0X45, 0X5C, 0X5C, 0X2A, 0X3D},
			  .length = 28},
	},
	{
		.prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
				   0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
				   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF,
				   0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0xFF, 0xFF, 0xFF, 0xFF},
			  .length = 32},
		.order = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
				   0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
				   0xFF, 0xFF, 0xBC, 0xE6, 0xFA, 0xAD, 0xA7,
				   0x17, 0x9E, 0x84, 0xF3, 0xB9, 0xCA, 0xC2,
				   0xFC, 0x63, 0x25, 0x51},
			  .length = 32},
	},
	{.prime = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE,
			    0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00,
			    0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF},
		   .length = 48},
	 .order = {.data = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xC7, 0x63, 0x4D, 0x81, 0xF4, 0x37, 0x2D, 0xDF,
			    0x58, 0x1A, 0x0D, 0xB2, 0x48, 0xB0, 0xA7, 0x7A,
			    0xEC, 0xEC, 0x19, 0x6A, 0xCC, 0xC5, 0x29, 0x73},
		   .length = 48}},
	{.prime = {.data = {0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF},
		   .length = 66},
	 .order = {.data = {0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
			    0xFF, 0xFA, 0x51, 0x86, 0x87, 0x83, 0xBF, 0x2F,
			    0x96, 0x6B, 0x7F, 0xCC, 0x01, 0x48, 0xF7, 0x09,
			    0xA5, 0xD0, 0x3B, 0xB5, 0xC9, 0xB8, 0x89, 0x9C,
			    0x47, 0xAE, 0xBB, 0x6F, 0xB7, 0x1E, 0x91, 0x38,
			    0x64, 0x09},
		   .length = 66}}};

int
roc_ae_ec_grp_get(struct roc_ae_ec_group **tbl)
{
	const char name[] = AE_EC_GRP_TBL_NAME;
	struct ae_ec_grp_tbl *ec_grp;
	const struct plt_memzone *mz;
	int i, len = 0;
	uint8_t *data;

	if (tbl == NULL)
		return -EINVAL;

	len = sizeof(ae_ec_grp);

	mz = plt_memzone_lookup(name);
	if (mz == NULL) {
		/* Create memzone first time */
		mz = plt_memzone_reserve_cache_align(
			name, len + sizeof(struct ae_ec_grp_tbl));
		if (mz == NULL)
			return -ENOMEM;
	}

	ec_grp = mz->addr;

	if (__atomic_fetch_add(&ec_grp->refcount, 1, __ATOMIC_SEQ_CST) != 0)
		return 0;

	data = PLT_PTR_ADD(mz->addr, sizeof(uint64_t));

	for (i = 0; i < ROC_AE_EC_ID_PMAX; i++) {
		memcpy(data, &ae_ec_grp[i], sizeof(struct roc_ae_ec_group));
		tbl[i] = (struct roc_ae_ec_group *)data;
		data += sizeof(struct roc_ae_ec_group);
	}

	return 0;
}

void
roc_ae_ec_grp_put(void)
{
	const char name[] = AE_EC_GRP_TBL_NAME;
	const struct plt_memzone *mz;
	struct ae_ec_grp_tbl *ec_grp;

	mz = plt_memzone_lookup(name);
	if (mz == NULL)
		return;

	ec_grp = mz->addr;
	/* Decrement number of devices using EC grp table */
	if (__atomic_sub_fetch(&ec_grp->refcount, 1, __ATOMIC_SEQ_CST) == 0)
		plt_memzone_free(mz);
}