4495bd887d
This patch adds support for multiple DPI blocks by removing the fixed macro that was writing to same sysfs entry for different DPI blocks. Signed-off-by: Radha Mohan Chintakuntla <radhac@marvell.com> Reviewed-by: Satananda Burla <sburla@marvell.com> Acked-by: Satha Rao <skoteshwar@marvell.com>
106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(C) 2019 Marvell International Ltd.
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*/
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#ifndef _DPI_MSG_H_
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#define _DPI_MSG_H_
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#include <dirent.h>
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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#include "otx2_dpi_rawdev.h"
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/* DPI PF DBDF information macro's */
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#define DPI_PF_DBDF_DOMAIN 0
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#define DPI_PF_DBDF_BUS 5
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#define DPI_PF_DBDF_DEVICE 0
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#define DPI_PF_DBDF_FUNCTION 0
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#define DPI_PF_MBOX_SYSFS_ENTRY "dpi_device_config"
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union dpi_mbox_message_u {
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uint64_t u[2];
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struct dpi_mbox_message_s {
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/* VF ID to configure */
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uint64_t vfid :4;
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/* Command code */
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uint64_t cmd :4;
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/* Command buffer size in 8-byte words */
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uint64_t csize :14;
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/* aura of the command buffer */
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uint64_t aura :20;
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/* SSO PF function */
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uint64_t sso_pf_func :16;
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/* NPA PF function */
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uint64_t npa_pf_func :16;
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} s;
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};
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static inline int
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send_msg_to_pf(struct rte_pci_addr *pci, const char *value, int size)
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{
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char buff[255] = { 0 };
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int res, fd;
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res = snprintf(buff, sizeof(buff), "%s/" PCI_PRI_FMT "/%s",
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rte_pci_get_sysfs_path(), pci->domain,
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pci->bus, DPI_PF_DBDF_DEVICE & 0x7,
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DPI_PF_DBDF_FUNCTION & 0x7, DPI_PF_MBOX_SYSFS_ENTRY);
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if ((res < 0) || ((size_t)res > sizeof(buff)))
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return -ERANGE;
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fd = open(buff, O_WRONLY);
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if (fd < 0)
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return -EACCES;
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res = write(fd, value, size);
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close(fd);
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if (res < 0)
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return -EACCES;
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return 0;
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}
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int
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otx2_dpi_queue_open(struct dpi_vf_s *dpivf, uint32_t size, uint32_t gaura)
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{
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union dpi_mbox_message_u mbox_msg;
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int ret = 0;
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/* DPI PF driver expects vfid starts from index 0 */
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mbox_msg.s.vfid = dpivf->vf_id;
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mbox_msg.s.cmd = DPI_QUEUE_OPEN;
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mbox_msg.s.csize = size;
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mbox_msg.s.aura = gaura;
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mbox_msg.s.sso_pf_func = otx2_sso_pf_func_get();
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mbox_msg.s.npa_pf_func = otx2_npa_pf_func_get();
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ret = send_msg_to_pf(&dpivf->dev->addr, (const char *)&mbox_msg,
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sizeof(mbox_msg));
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if (ret < 0)
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otx2_dpi_dbg("Failed to send mbox message to dpi pf");
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return ret;
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}
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int
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otx2_dpi_queue_close(struct dpi_vf_s *dpivf)
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{
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union dpi_mbox_message_u mbox_msg;
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int ret = 0;
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/* DPI PF driver expects vfid starts from index 0 */
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mbox_msg.s.vfid = dpivf->vf_id;
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mbox_msg.s.cmd = DPI_QUEUE_CLOSE;
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ret = send_msg_to_pf(&dpivf->dev->addr, (const char *)&mbox_msg,
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sizeof(mbox_msg));
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if (ret < 0)
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otx2_dpi_dbg("Failed to send mbox message to dpi pf");
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return ret;
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}
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#endif /* _DPI_MSG_H_ */
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