github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-28 10:09:10 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

net: enetc: add support for the "Update" operation to buffer pool table

Browse Source 
The buffer pool table contains buffer pool configuration and operational
information. Each entry corresponds to a buffer pool. The Entry ID value
represents the buffer pool ID to access.

The buffer pool table is a static bounded index table, buffer pools are
always present and enabled. It only supports Update and Query operations,
This patch only adds ntmp_bpt_update_entry() helper to support updating
the specified entry of the buffer pool table. Query action to the table
will be added in the future.

Signed-off-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20260518082506.1318236-7-wei.fang@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Wei Fang 2026-05-18 16:24:57 +08:00 committed by Paolo Abeni
parent d0ac4d4bd2
commit cb4d95d79d
3 changed files with 74 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
drivers/net/ethernet/freescale/enetc/ntmp.c
View File

@ -23,11 +23,15 @@
#define NTMP_RSST_ID 3
#define NTMP_FDBT_ID 15
#define NTMP_VFT_ID 18
#define NTMP_BPT_ID 41
/* Generic Update Actions for most tables */
#define NTMP_GEN_UA_CFGEU BIT(0)
#define NTMP_GEN_UA_STSEU BIT(1)
/* Specific Update Actions for some tables */
#define BPT_UA_BPSEU BIT(1)
/* Query Action: 0: Full query. 1: Query entry ID, the fields after entry
* ID are not returned.
*/
@ -271,6 +275,8 @@ static const char *ntmp_table_name(int tbl_id)
return "FDB Table";
case NTMP_VFT_ID:
return "VLAN Filter Table";
case NTMP_BPT_ID:
return "Buffer Pool Table";
default:
return "Unknown Table";
}
@ -749,5 +755,42 @@ int ntmp_vft_add_entry(struct ntmp_user *user, u16 vid,
}
EXPORT_SYMBOL_GPL(ntmp_vft_add_entry);
int ntmp_bpt_update_entry(struct ntmp_user *user, u32 entry_id,
const struct bpt_cfge_data *cfge)
{
struct bpt_req_update *req;
struct netc_swcbd swcbd;
struct netc_cbdr *cbdr;
union netc_cbd cbd;
int err;
swcbd.size = sizeof(*req);
err = ntmp_alloc_data_mem(user->dev, &swcbd, (void **)&req);
if (err)
return err;
/* Note that BPT_UA_BPSEU is used to update the BPSE_DATA of the entry,
* which is maintained by the hardware. The BPSE_DATA is not present in
* the request data for 'Update' operation.
*/
ntmp_fill_crd_eid(&req->rbe, user->tbl.bpt_ver, 0,
NTMP_GEN_UA_CFGEU | BPT_UA_BPSEU, entry_id);
req->cfge = *cfge;
ntmp_fill_request_hdr(&cbd, swcbd.dma, NTMP_LEN(swcbd.size, 0),
NTMP_BPT_ID, NTMP_CMD_UPDATE, NTMP_AM_ENTRY_ID);
ntmp_select_and_lock_cbdr(user, &cbdr);
err = netc_xmit_ntmp_cmd(cbdr, &cbd, &swcbd);
if (err)
dev_err(user->dev,
"Failed to update %s entry 0x%x, err: %pe\n",
ntmp_table_name(NTMP_BPT_ID), entry_id, ERR_PTR(err));
ntmp_unlock_cbdr(cbdr);
return err;
}
EXPORT_SYMBOL_GPL(ntmp_bpt_update_entry);
MODULE_DESCRIPTION("NXP NETC Library");
MODULE_LICENSE("Dual BSD/GPL");

6
drivers/net/ethernet/freescale/enetc/ntmp_private.h
View File

@ -175,4 +175,10 @@ struct vft_req_ua {
struct vft_cfge_data cfge;
};
/* Buffer Pool Table Request Data Buffer Format of Update action */
struct bpt_req_update {
struct ntmp_req_by_eid rbe;
struct bpt_cfge_data cfge;
};
#endif

25
include/linux/fsl/ntmp.h
View File

@ -33,6 +33,7 @@ struct netc_tbl_vers {
u8 rsst_ver;
u8 fdbt_ver;
u8 vft_ver;
u8 bpt_ver;
};
struct netc_swcbd {
@ -123,6 +124,28 @@ struct vft_cfge_data {
__le32 et_eid;
};
struct bpt_bpse_data {
__le32 amount_used;
__le32 amount_used_hwm;
u8 bpd_fc_state;
#define BPT_FC_STATE BIT(0)
#define BPT_BPD BIT(1)
} __packed;
struct bpt_cfge_data {
u8 fccfg_sbpen;
#define BPT_FC_CFG GENMASK(2, 1)
#define BPT_FC_CFG_EN_BPFC 1
u8 pfc_vector;
__le16 max_thresh;
__le16 fc_on_thresh;
__le16 fc_off_thresh;
__le16 sbp_thresh;
__le16 resv;
__le32 sbp_eid;
__le32 fc_ports;
};
#if IS_ENABLED(CONFIG_NXP_NETC_LIB)
int ntmp_init_cbdr(struct netc_cbdr *cbdr, struct device *dev,
const struct netc_cbdr_regs *regs);
@ -149,6 +172,8 @@ int ntmp_fdbt_search_port_entry(struct ntmp_user *user, int port,
struct fdbt_entry_data *entry);
int ntmp_vft_add_entry(struct ntmp_user *user, u16 vid,
const struct vft_cfge_data *cfge);
int ntmp_bpt_update_entry(struct ntmp_user *user, u32 entry_id,
const struct bpt_cfge_data *cfge);
#else
static inline int ntmp_init_cbdr(struct netc_cbdr *cbdr, struct device *dev,
const struct netc_cbdr_regs *regs)