From: Denis Pryazhennikov <denis.pryazhenni...@arknetworks.am>

API allows to delete entry from any supported HW table.

Signed-off-by: Denis Pryazhennikov <denis.pryazhenni...@arknetworks.am>
Reviewed-by: Ivan Malov <ivan.ma...@arknetworks.am>
Reviewed-by: Andy Moreton <amore...@xilinx.com>
---
 drivers/common/sfc_efx/base/efx.h       | 11 ++++
 drivers/common/sfc_efx/base/efx_table.c | 77 +++++++++++++++++++++++++
 drivers/common/sfc_efx/version.map      |  1 +
 3 files changed, 89 insertions(+)

diff --git a/drivers/common/sfc_efx/base/efx.h 
b/drivers/common/sfc_efx/base/efx.h
index 90d86c70dd..49f807823e 100644
--- a/drivers/common/sfc_efx/base/efx.h
+++ b/drivers/common/sfc_efx/base/efx.h
@@ -5168,6 +5168,17 @@ efx_table_entry_insert(
        __in_bcount(data_size)          uint8_t *entry_datap,
        __in                            unsigned int data_size);
 
+LIBEFX_API
+extern __checkReturn                   efx_rc_t
+efx_table_entry_delete(
+       __in                            efx_nic_t *enp,
+       __in                            efx_table_id_t table_id,
+       __in                            uint16_t mask_id,
+       __in                            uint16_t key_width,
+       __in                            uint16_t mask_width,
+       __in_bcount(data_size)          uint8_t *entry_datap,
+       __in                            unsigned int data_size);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/drivers/common/sfc_efx/base/efx_table.c 
b/drivers/common/sfc_efx/base/efx_table.c
index 6ebb92e83b..13a12a116e 100644
--- a/drivers/common/sfc_efx/base/efx_table.c
+++ b/drivers/common/sfc_efx/base/efx_table.c
@@ -419,6 +419,83 @@ efx_table_entry_insert(
 
 fail4:
        EFSYS_PROBE(fail4);
+fail3:
+       EFSYS_PROBE(fail3);
+fail2:
+       EFSYS_PROBE(fail2);
+fail1:
+       EFSYS_PROBE1(fail1, efx_rc_t, rc);
+       return (rc);
+}
+
+       __checkReturn                   efx_rc_t
+efx_table_entry_delete(
+       __in                            efx_nic_t *enp,
+       __in                            efx_table_id_t table_id,
+       __in                            uint16_t mask_id,
+       __in                            uint16_t key_width,
+       __in                            uint16_t mask_width,
+       __in_bcount(data_size)          uint8_t *entry_datap,
+       __in                            unsigned int data_size)
+{
+       const efx_nic_cfg_t *encp = efx_nic_cfg_get(enp);
+       unsigned int n_dwords;
+       efx_mcdi_req_t req;
+       efx_rc_t rc;
+       EFX_MCDI_DECLARE_BUF(payload,
+           MC_CMD_TABLE_DELETE_IN_LENMAX_MCDI2,
+           MC_CMD_TABLE_DELETE_OUT_LEN);
+
+       /*
+        * Ensure  MCDI number of 32bit units matches EFX maximum possible
+        * data in bytes.
+        */
+       EFX_STATIC_ASSERT((MC_CMD_TABLE_DELETE_IN_LENMAX  * sizeof(uint32_t)) ==
+               EFX_TABLE_ENTRY_LENGTH_MAX);
+
+       if (encp->enc_table_api_supported == B_FALSE) {
+               rc = ENOTSUP;
+               goto fail1;
+       }
+
+       if ((data_size % sizeof(uint32_t)) != 0) {
+               rc = EINVAL;
+               goto fail2;
+       }
+
+       if ((data_size == 0) || (data_size > EFX_TABLE_ENTRY_LENGTH_MAX)) {
+               rc = EINVAL;
+               goto fail3;
+       }
+
+       n_dwords = data_size / sizeof(uint32_t);
+
+       req.emr_cmd = MC_CMD_TABLE_DELETE;
+       req.emr_in_buf = payload;
+       req.emr_in_length = MC_CMD_TABLE_DELETE_IN_LEN(n_dwords);
+       req.emr_out_buf = payload;
+       req.emr_out_length = MC_CMD_TABLE_DELETE_OUT_LEN;
+
+       MCDI_IN_SET_DWORD(req, TABLE_DELETE_IN_TABLE_ID, (uint32_t)table_id);
+       MCDI_IN_SET_WORD(req, TABLE_DELETE_IN_MASK_ID, mask_id);
+       MCDI_IN_SET_WORD(req, TABLE_DELETE_IN_KEY_WIDTH, key_width);
+       MCDI_IN_SET_WORD(req, TABLE_DELETE_IN_MASK_WIDTH, mask_width);
+
+
+       memcpy(MCDI_IN2(req, uint8_t, TABLE_DELETE_IN_DATA), entry_datap, 
data_size);
+
+       efx_mcdi_execute(enp, &req);
+
+       if (req.emr_rc != 0) {
+               rc = req.emr_rc;
+               goto fail4;
+       }
+
+       return (0);
+
+fail4:
+       EFSYS_PROBE(fail4);
+
 fail3:
        EFSYS_PROBE(fail3);
 fail2:
diff --git a/drivers/common/sfc_efx/version.map 
b/drivers/common/sfc_efx/version.map
index 2be519e0e1..d083a54a03 100644
--- a/drivers/common/sfc_efx/version.map
+++ b/drivers/common/sfc_efx/version.map
@@ -233,6 +233,7 @@ INTERNAL {
        efx_sram_buf_tbl_set;
 
        efx_table_describe;
+       efx_table_entry_delete;
        efx_table_entry_insert;
        efx_table_is_supported;
        efx_table_list;
-- 
2.30.2

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