[v5,04/11] common/idpf/base: initialize PTP support
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Commit Message
Add a few PTP capabilities to determine which PTP features are
enabled including legacy cross time, ptm, device clock control,
PTP Tx timestamp with direct registers access and PTP Tx timestamp
with virtchnl messages. Also create opcodes and structures to
support feautres introduced by capabilities.
Signed-off-by: Milena Olech <milena.olech@intel.com>
Signed-off-by: Simei Su <simei.su@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
---
drivers/common/idpf/base/virtchnl2.h | 145 +++++++++++++++++++++++++++
1 file changed, 145 insertions(+)
@@ -98,6 +98,9 @@
#define VIRTCHNL2_OP_ADD_QUEUE_GROUPS 538
#define VIRTCHNL2_OP_DEL_QUEUE_GROUPS 539
#define VIRTCHNL2_OP_GET_PORT_STATS 540
+ /* TimeSync opcodes */
+#define VIRTCHNL2_OP_GET_PTP_CAPS 541
+#define VIRTCHNL2_OP_GET_PTP_TX_TSTAMP_LATCHES 542
#define VIRTCHNL2_RDMA_INVALID_QUEUE_IDX 0xFFFF
@@ -1395,6 +1398,112 @@ struct virtchnl2_promisc_info {
VIRTCHNL2_CHECK_STRUCT_LEN(8, virtchnl2_promisc_info);
+/* VIRTCHNL2_PTP_CAPS
+ * PTP capabilities
+ */
+#define VIRTCHNL2_PTP_CAP_LEGACY_CROSS_TIME BIT(0)
+#define VIRTCHNL2_PTP_CAP_PTM BIT(1)
+#define VIRTCHNL2_PTP_CAP_DEVICE_CLOCK_CONTROL BIT(2)
+#define VIRTCHNL2_PTP_CAP_TX_TSTAMPS_DIRECT BIT(3)
+#define VIRTCHNL2_PTP_CAP_TX_TSTAMPS_VIRTCHNL BIT(4)
+
+/* Legacy cross time registers offsets */
+struct virtchnl2_ptp_legacy_cross_time_reg {
+ __le32 shadow_time_0;
+ __le32 shadow_time_l;
+ __le32 shadow_time_h;
+ __le32 cmd_sync;
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(16, virtchnl2_ptp_legacy_cross_time_reg);
+
+/* PTM cross time registers offsets */
+struct virtchnl2_ptp_ptm_cross_time_reg {
+ __le32 art_l;
+ __le32 art_h;
+ __le32 cmd_sync;
+ u8 pad[4];
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(16, virtchnl2_ptp_ptm_cross_time_reg);
+
+/* Registers needed to control the main clock */
+struct virtchnl2_ptp_device_clock_control {
+ __le32 cmd;
+ __le32 incval_l;
+ __le32 incval_h;
+ __le32 shadj_l;
+ __le32 shadj_h;
+ u8 pad[4];
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(24, virtchnl2_ptp_device_clock_control);
+
+/* Structure that defines tx tstamp entry - index and register offset */
+struct virtchnl2_ptp_tx_tstamp_entry {
+ __le32 tx_latch_register_base;
+ __le32 tx_latch_register_offset;
+ u8 index;
+ u8 pad[7];
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(16, virtchnl2_ptp_tx_tstamp_entry);
+
+/* Structure that defines tx tstamp entries - total number of latches
+ * and the array of entries.
+ */
+struct virtchnl2_ptp_tx_tstamp {
+ __le16 num_latches;
+ /* latch size expressed in bits */
+ __le16 latch_size;
+ u8 pad[4];
+ struct virtchnl2_ptp_tx_tstamp_entry ptp_tx_tstamp_entries[1];
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(24, virtchnl2_ptp_tx_tstamp);
+
+/* VIRTCHNL2_OP_GET_PTP_CAPS
+ * PV/VF sends this message to negotiate PTP capabilities. CP updates bitmap
+ * with supported features and fulfills appropriate structures.
+ */
+struct virtchnl2_get_ptp_caps {
+ /* PTP capability bitmap */
+ /* see VIRTCHNL2_PTP_CAPS definitions */
+ __le32 ptp_caps;
+ u8 pad[4];
+
+ struct virtchnl2_ptp_legacy_cross_time_reg legacy_cross_time_reg;
+ struct virtchnl2_ptp_ptm_cross_time_reg ptm_cross_time_reg;
+ struct virtchnl2_ptp_device_clock_control device_clock_control;
+ struct virtchnl2_ptp_tx_tstamp tx_tstamp;
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(88, virtchnl2_get_ptp_caps);
+
+/* Structure that describes tx tstamp values, index and validity */
+struct virtchnl2_ptp_tx_tstamp_latch {
+ __le32 tstamp_h;
+ __le32 tstamp_l;
+ u8 index;
+ u8 valid;
+ u8 pad[6];
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(16, virtchnl2_ptp_tx_tstamp_latch);
+
+/* VIRTCHNL2_OP_GET_PTP_TX_TSTAMP_LATCHES
+ * PF/VF sends this message to receive a specified number of timestamps
+ * entries.
+ */
+struct virtchnl2_ptp_tx_tstamp_latches {
+ __le16 num_latches;
+ /* latch size expressed in bits */
+ __le16 latch_size;
+ u8 pad[4];
+ struct virtchnl2_ptp_tx_tstamp_latch tstamp_latches[1];
+};
+
+VIRTCHNL2_CHECK_STRUCT_LEN(24, virtchnl2_ptp_tx_tstamp_latches);
static inline const char *virtchnl2_op_str(__le32 v_opcode)
{
@@ -1463,6 +1572,10 @@ static inline const char *virtchnl2_op_str(__le32 v_opcode)
return "VIRTCHNL2_OP_DEL_QUEUE_GROUPS";
case VIRTCHNL2_OP_GET_PORT_STATS:
return "VIRTCHNL2_OP_GET_PORT_STATS";
+ case VIRTCHNL2_OP_GET_PTP_CAPS:
+ return "VIRTCHNL2_OP_GET_PTP_CAPS";
+ case VIRTCHNL2_OP_GET_PTP_TX_TSTAMP_LATCHES:
+ return "VIRTCHNL2_OP_GET_PTP_TX_TSTAMP_LATCHES";
default:
return "Unsupported (update virtchnl2.h)";
}
@@ -1732,6 +1845,38 @@ virtchnl2_vc_validate_vf_msg(__rte_unused struct virtchnl2_version_info *ver, u3
break;
case VIRTCHNL2_OP_RESET_VF:
break;
+ case VIRTCHNL2_OP_GET_PTP_CAPS:
+ valid_len = sizeof(struct virtchnl2_get_ptp_caps);
+
+ if (msglen >= valid_len) {
+ struct virtchnl2_get_ptp_caps *ptp_caps =
+ (struct virtchnl2_get_ptp_caps *)msg;
+
+ if (ptp_caps->tx_tstamp.num_latches == 0) {
+ err_msg_format = true;
+ break;
+ }
+
+ valid_len += ((ptp_caps->tx_tstamp.num_latches - 1) *
+ sizeof(struct virtchnl2_ptp_tx_tstamp_entry));
+ }
+ break;
+ case VIRTCHNL2_OP_GET_PTP_TX_TSTAMP_LATCHES:
+ valid_len = sizeof(struct virtchnl2_ptp_tx_tstamp_latches);
+
+ if (msglen >= valid_len) {
+ struct virtchnl2_ptp_tx_tstamp_latches *tx_tstamp_latches =
+ (struct virtchnl2_ptp_tx_tstamp_latches *)msg;
+
+ if (tx_tstamp_latches->num_latches == 0) {
+ err_msg_format = true;
+ break;
+ }
+
+ valid_len += ((tx_tstamp_latches->num_latches - 1) *
+ sizeof(struct virtchnl2_ptp_tx_tstamp_latch));
+ }
+ break;
/* These are always errors coming from the VF. */
case VIRTCHNL2_OP_EVENT:
case VIRTCHNL2_OP_UNKNOWN: