diff options
Diffstat (limited to 'include/linux/phy.h')
| -rw-r--r-- | include/linux/phy.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index 89b43cda5bda..b82fdb0d82ed 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -774,6 +774,63 @@ struct phy_tdr_config { #define PHY_PAIR_ALL -1 /** + * struct phy_plca_cfg - Configuration of the PLCA (Physical Layer Collision + * Avoidance) Reconciliation Sublayer. + * + * @version: read-only PLCA register map version. -1 = not available. Ignored + * when setting the configuration. Format is the same as reported by the PLCA + * IDVER register (31.CA00). -1 = not available. + * @enabled: PLCA configured mode (enabled/disabled). -1 = not available / don't + * set. 0 = disabled, anything else = enabled. + * @node_id: the PLCA local node identifier. -1 = not available / don't set. + * Allowed values [0 .. 254]. 255 = node disabled. + * @node_cnt: the PLCA node count (maximum number of nodes having a TO). Only + * meaningful for the coordinator (node_id = 0). -1 = not available / don't + * set. Allowed values [1 .. 255]. + * @to_tmr: The value of the PLCA to_timer in bit-times, which determines the + * PLCA transmit opportunity window opening. See IEEE802.3 Clause 148 for + * more details. The to_timer shall be set equal over all nodes. + * -1 = not available / don't set. Allowed values [0 .. 255]. + * @burst_cnt: controls how many additional frames a node is allowed to send in + * single transmit opportunity (TO). The default value of 0 means that the + * node is allowed exactly one frame per TO. A value of 1 allows two frames + * per TO, and so on. -1 = not available / don't set. + * Allowed values [0 .. 255]. + * @burst_tmr: controls how many bit times to wait for the MAC to send a new + * frame before interrupting the burst. This value should be set to a value + * greater than the MAC inter-packet gap (which is typically 96 bits). + * -1 = not available / don't set. Allowed values [0 .. 255]. + * + * A structure containing configuration parameters for setting/getting the PLCA + * RS configuration. The driver does not need to implement all the parameters, + * but should report what is actually used. + */ +struct phy_plca_cfg { + int version; + int enabled; + int node_id; + int node_cnt; + int to_tmr; + int burst_cnt; + int burst_tmr; +}; + +/** + * struct phy_plca_status - Status of the PLCA (Physical Layer Collision + * Avoidance) Reconciliation Sublayer. + * + * @pst: The PLCA status as reported by the PST bit in the PLCA STATUS + * register(31.CA03), indicating BEACON activity. + * + * A structure containing status information of the PLCA RS configuration. + * The driver does not need to implement all the parameters, but should report + * what is actually used. + */ +struct phy_plca_status { + bool pst; +}; + +/** * struct phy_driver - Driver structure for a particular PHY type * * @mdiodrv: Data common to all MDIO devices |