@@ -1335,6 +1335,7 @@ struct ice_aqc_link_topo_addr {
struct ice_aqc_get_link_topo {
struct ice_aqc_link_topo_addr addr;
u8 node_part_num;
+#define ICE_AQC_GET_LINK_TOPO_NODE_NR_PCA9575 0x21
u8 rsvd[9];
};
@@ -69,6 +69,27 @@ bool ice_is_e810(struct ice_hw *hw)
return hw->mac_type == ICE_MAC_E810;
}
+/**
+ * ice_is_e810t
+ * @hw: pointer to the hardware structure
+ *
+ * returns true if the device is E810T based, false if not.
+ */
+bool ice_is_e810t(struct ice_hw *hw)
+{
+ switch (hw->device_id) {
+ case ICE_DEV_ID_E810C_SFP:
+ if (hw->subsystem_device_id == ICE_SUBDEV_ID_E810T ||
+ hw->subsystem_device_id == ICE_SUBDEV_ID_E810T2)
+ return true;
+ break;
+ default:
+ break;
+ }
+
+ return false;
+}
+
/**
* ice_clear_pf_cfg - Clear PF configuration
* @hw: pointer to the hardware structure
@@ -183,6 +183,7 @@ ice_stat_update40(struct ice_hw *hw, u32 reg, bool prev_stat_loaded,
void
ice_stat_update32(struct ice_hw *hw, u32 reg, bool prev_stat_loaded,
u64 *prev_stat, u64 *cur_stat);
+bool ice_is_e810t(struct ice_hw *hw);
enum ice_status
ice_sched_query_elem(struct ice_hw *hw, u32 node_teid,
struct ice_aqc_txsched_elem_data *buf);
@@ -21,6 +21,8 @@
#define ICE_DEV_ID_E810C_QSFP 0x1592
/* Intel(R) Ethernet Controller E810-C for SFP */
#define ICE_DEV_ID_E810C_SFP 0x1593
+#define ICE_SUBDEV_ID_E810T 0x000E
+#define ICE_SUBDEV_ID_E810T2 0x000F
/* Intel(R) Ethernet Controller E810-XXV for SFP */
#define ICE_DEV_ID_E810_XXV_SFP 0x159B
/* Intel(R) Ethernet Connection E823-C for backplane */
@@ -3139,3 +3139,159 @@ int ice_ptp_init_phc(struct ice_hw *hw)
else
return ice_ptp_init_phc_e822(hw);
}
+
+/* E810T SMA functions
+ *
+ * The following functions operate specifically on E810T hardware and are used
+ * to access the extended GPIOs available.
+ */
+
+/**
+ * ice_get_pca9575_handle
+ * @hw: pointer to the hw struct
+ * @pca9575_handle: GPIO controller's handle
+ *
+ * Find and return the GPIO controller's handle in the netlist.
+ * When found - the value will be cached in the hw structure and following calls
+ * will return cached value
+ */
+static int
+ice_get_pca9575_handle(struct ice_hw *hw, u16 *pca9575_handle)
+{
+ struct ice_aqc_get_link_topo *cmd;
+ struct ice_aq_desc desc;
+ int status;
+ u8 idx;
+
+ if (!hw || !pca9575_handle)
+ return ICE_ERR_PARAM;
+
+ /* If handle was read previously return cached value */
+ if (hw->io_expander_handle) {
+ *pca9575_handle = hw->io_expander_handle;
+ return 0;
+ }
+
+ /* If handle was not detected read it from the netlist */
+ cmd = &desc.params.get_link_topo;
+ ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_link_topo);
+
+ /* Set node type to GPIO controller */
+ cmd->addr.topo_params.node_type_ctx =
+ (ICE_AQC_LINK_TOPO_NODE_TYPE_M &
+ ICE_AQC_LINK_TOPO_NODE_TYPE_GPIO_CTRL);
+
+#define SW_PCA9575_SFP_TOPO_IDX 2
+#define SW_PCA9575_QSFP_TOPO_IDX 1
+
+ /* Check if the SW IO expander controlling SMA exists in the netlist. */
+ if (hw->device_id == ICE_DEV_ID_E810C_SFP)
+ idx = SW_PCA9575_SFP_TOPO_IDX;
+ else if (hw->device_id == ICE_DEV_ID_E810C_QSFP)
+ idx = SW_PCA9575_QSFP_TOPO_IDX;
+ else
+ return ICE_ERR_NOT_SUPPORTED;
+
+ cmd->addr.topo_params.index = idx;
+
+ status = ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
+ if (status)
+ return ICE_ERR_NOT_SUPPORTED;
+
+ /* Verify if we found the right IO expander type */
+ if (desc.params.get_link_topo.node_part_num !=
+ ICE_AQC_GET_LINK_TOPO_NODE_NR_PCA9575)
+ return ICE_ERR_NOT_SUPPORTED;
+
+ /* If present save the handle and return it */
+ hw->io_expander_handle =
+ le16_to_cpu(desc.params.get_link_topo.addr.handle);
+ *pca9575_handle = hw->io_expander_handle;
+
+ return 0;
+}
+
+/**
+ * ice_read_sma_ctrl_e810t
+ * @hw: pointer to the hw struct
+ * @data: pointer to data to be read from the GPIO controller
+ *
+ * Read the SMA controller state. It is connected to pins 3-7 of Port 1 of the
+ * PCA9575 expander, so only bits 3-7 in data are valid.
+ */
+int ice_read_sma_ctrl_e810t(struct ice_hw *hw, u8 *data)
+{
+ int status;
+ u16 handle;
+ u8 i;
+
+ status = ice_get_pca9575_handle(hw, &handle);
+ if (status)
+ return status;
+
+ *data = 0;
+
+ for (i = ICE_SMA_MIN_BIT_E810T; i <= ICE_SMA_MAX_BIT_E810T; i++) {
+ bool pin;
+
+ status = ice_aq_get_gpio(hw, handle, i + ICE_PCA9575_P1_OFFSET,
+ &pin, NULL);
+ if (status)
+ break;
+ *data |= (u8)(!pin) << i;
+ }
+
+ return status;
+}
+
+/**
+ * ice_write_sma_ctrl_e810t
+ * @hw: pointer to the hw struct
+ * @data: data to be written to the GPIO controller
+ *
+ * Write the data to the SMA controller. It is connected to pins 3-7 of Port 1
+ * of the PCA9575 expander, so only bits 3-7 in data are valid.
+ */
+int ice_write_sma_ctrl_e810t(struct ice_hw *hw, u8 data)
+{
+ int status;
+ u16 handle;
+ u8 i;
+
+ status = ice_get_pca9575_handle(hw, &handle);
+ if (status)
+ return status;
+
+ for (i = ICE_SMA_MIN_BIT_E810T; i <= ICE_SMA_MAX_BIT_E810T; i++) {
+ bool pin;
+
+ pin = !(data & (1 << i));
+ status = ice_aq_set_gpio(hw, handle, i + ICE_PCA9575_P1_OFFSET,
+ pin, NULL);
+ if (status)
+ break;
+ }
+
+ return status;
+}
+
+/**
+ * ice_is_pca9575_present
+ * @hw: pointer to the hw struct
+ *
+ * Check if the SW IO expander is present in the netlist
+ */
+bool ice_is_pca9575_present(struct ice_hw *hw)
+{
+ int status;
+ __le16 handle = 0;
+
+ if (!ice_is_e810t(hw))
+ return false;
+
+ status = ice_get_pca9575_handle(hw, &handle);
+ if (!status && handle)
+ return true;
+
+ return false;
+}
@@ -189,6 +189,9 @@ int ice_phy_exit_bypass_e822(struct ice_hw *hw, u8 port);
/* E810 family functions */
int ice_ptp_init_phy_e810(struct ice_hw *hw);
+int ice_read_sma_ctrl_e810t(struct ice_hw *hw, u8 *data);
+int ice_write_sma_ctrl_e810t(struct ice_hw *hw, u8 data);
+bool ice_is_pca9575_present(struct ice_hw *hw);
#define PFTSYN_SEM_BYTES 4
@@ -421,4 +424,23 @@ int ice_ptp_init_phy_e810(struct ice_hw *hw);
#define LOW_TX_MEMORY_BANK_START 0x03090000
#define HIGH_TX_MEMORY_BANK_START 0x03090004
+/* E810T SMA controller pin control */
+#define ICE_SMA1_DIR_EN_E810T BIT(4)
+#define ICE_SMA1_TX_EN_E810T BIT(5)
+#define ICE_SMA2_UFL2_RX_DIS_E810T BIT(3)
+#define ICE_SMA2_DIR_EN_E810T BIT(6)
+#define ICE_SMA2_TX_EN_E810T BIT(7)
+
+#define ICE_SMA1_MASK_E810T (ICE_SMA1_DIR_EN_E810T | \
+ ICE_SMA1_TX_EN_E810T)
+#define ICE_SMA2_MASK_E810T (ICE_SMA2_UFL2_RX_DIS_E810T | \
+ ICE_SMA2_DIR_EN_E810T | \
+ ICE_SMA2_TX_EN_E810T)
+#define ICE_ALL_SMA_MASK_E810T (ICE_SMA1_MASK_E810T | \
+ ICE_SMA2_MASK_E810T)
+
+#define ICE_SMA_MIN_BIT_E810T 3
+#define ICE_SMA_MAX_BIT_E810T 7
+#define ICE_PCA9575_P1_OFFSET 8
+
#endif /* _ICE_PTP_HW_H_ */
@@ -938,6 +938,7 @@ struct ice_hw {
struct list_head rss_list_head;
struct ice_mbx_snapshot mbx_snapshot;
DECLARE_BITMAP(hw_ptype, ICE_FLOW_PTYPE_MAX);
+ u16 io_expander_handle;
};
/* Statistics collected by each port, VSI, VEB, and S-channel */
E810-T adapters have two external bidirectional SMA connectors and two internal unidirectional U.FL connectors. Multiplexing between U.FL and SMA and SMA direction is controlled using the PCA9575 expander. Add support for the PCA9575 detection and control of the respective pins of the SMA/U.FL multiplexer using the GPIO AQ API. Signed-off-by: Maciej Machnikowski <maciej.machnikowski@intel.com> --- .../net/ethernet/intel/ice/ice_adminq_cmd.h | 1 + drivers/net/ethernet/intel/ice/ice_common.c | 21 +++ drivers/net/ethernet/intel/ice/ice_common.h | 1 + drivers/net/ethernet/intel/ice/ice_devids.h | 2 + drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 156 ++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_ptp_hw.h | 22 +++ drivers/net/ethernet/intel/ice/ice_type.h | 1 + 7 files changed, 204 insertions(+)