From: Denis Pryazhennikov <denis.pryazhennikov@arknetworks.am>
New MCDI Table Access API allows management of
the HW tables' content.
This part of API helps to list all supported tables.
In the near future, only the CT table is planned
to be used, so only one identifier for this table
was added to the efx.
New table IDs will be added as needed.
Signed-off-by: Denis Pryazhennikov <denis.pryazhennikov@arknetworks.am>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
---
drivers/common/sfc_efx/base/efx.h | 15 ++++
drivers/common/sfc_efx/base/efx_table.c | 94 +++++++++++++++++++++++++
drivers/common/sfc_efx/base/meson.build | 1 +
drivers/common/sfc_efx/version.map | 2 +
4 files changed, 112 insertions(+)
create mode 100644 drivers/common/sfc_efx/base/efx_table.c
@@ -5070,6 +5070,21 @@ efx_nic_dma_map(
__in size_t len,
__out efsys_dma_addr_t *nic_addrp);
+/* Unique IDs for HW tables */
+typedef enum efx_table_id_e {
+ EFX_TABLE_ID_CONNTRACK = 0x10300,
+} efx_table_id_t;
+
+LIBEFX_API
+extern __checkReturn efx_rc_t
+efx_table_list(
+ __in efx_nic_t *enp,
+ __in uint32_t entry_ofst,
+ __out_opt unsigned int *total_n_tablesp,
+ __out_ecount_opt(n_table_ids) efx_table_id_t *table_ids,
+ __in unsigned int n_table_ids,
+ __out_opt unsigned int *n_table_ids_writtenp);
+
#ifdef __cplusplus
}
#endif
new file mode 100644
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2023 Advanced Micro Devices, Inc.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+ __checkReturn efx_rc_t
+efx_table_list(
+ __in efx_nic_t *enp,
+ __in uint32_t entry_ofst,
+ __out_opt unsigned int *total_n_tablesp,
+ __out_ecount_opt(n_table_ids) efx_table_id_t *table_ids,
+ __in unsigned int n_table_ids,
+ __out_opt unsigned int *n_table_ids_writtenp)
+{
+ const efx_nic_cfg_t *encp = efx_nic_cfg_get(enp);
+ unsigned int n_entries;
+ efx_mcdi_req_t req;
+ unsigned int i;
+ efx_rc_t rc;
+ EFX_MCDI_DECLARE_BUF(payload,
+ MC_CMD_TABLE_LIST_IN_LEN,
+ MC_CMD_TABLE_LIST_OUT_LENMAX_MCDI2);
+
+ /* Ensure EFX and MCDI use same values for table IDs */
+ EFX_STATIC_ASSERT(EFX_TABLE_ID_CONNTRACK == TABLE_ID_CONNTRACK_TABLE);
+
+ if (encp->enc_table_api_supported == B_FALSE) {
+ rc = ENOTSUP;
+ goto fail1;
+ }
+
+ if ((n_table_ids != 0) &&
+ ((table_ids == NULL) || (n_table_ids_writtenp == NULL))) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ req.emr_cmd = MC_CMD_TABLE_LIST;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_TABLE_LIST_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_TABLE_LIST_OUT_LENMAX_MCDI2;
+
+ MCDI_IN_SET_DWORD(req, TABLE_LIST_IN_FIRST_TABLE_ID_INDEX, entry_ofst);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail3;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_TABLE_LIST_OUT_LENMIN) {
+ rc = EMSGSIZE;
+ goto fail4;
+ }
+
+ if (total_n_tablesp != NULL)
+ *total_n_tablesp = MCDI_OUT_DWORD(req, TABLE_LIST_OUT_N_TABLES);
+
+ n_entries = MC_CMD_TABLE_LIST_OUT_TABLE_ID_NUM(req.emr_out_length_used);
+
+ if (table_ids != NULL) {
+ if (n_entries > n_table_ids) {
+ rc = ENOMEM;
+ goto fail5;
+ }
+
+ for (i = 0; i < n_entries; i++) {
+ table_ids[i] = MCDI_OUT_INDEXED_DWORD(req,
+ TABLE_LIST_OUT_TABLE_ID, i);
+ }
+ }
+
+ if (n_table_ids_writtenp != NULL)
+ *n_table_ids_writtenp = n_entries;
+
+ return (0);
+
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+ return (rc);
+}
@@ -16,6 +16,7 @@ sources = [
'efx_lic.c',
'efx_mac.c',
'efx_mae.c',
+ 'efx_table.c',
'efx_mcdi.c',
'efx_mon.c',
'efx_nic.c',
@@ -232,6 +232,8 @@ INTERNAL {
efx_sram_buf_tbl_clear;
efx_sram_buf_tbl_set;
+ efx_table_list;
+
efx_tunnel_config_clear;
efx_tunnel_config_udp_add;
efx_tunnel_config_udp_remove;