From 47ed985e97f513b7746270e8c5d1f3a3f959b2da Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Sat, 8 Jun 2019 15:04:35 +0300 Subject: net: dsa: sja1105: Add logic for TX timestamping On TX, timestamping is performed synchronously from the port_deferred_xmit worker thread. In management routes, the switch is requested to take egress timestamps (again partial), which are reconstructed and appended to a clone of the skb that was just sent. The cloning is done by DSA and we retrieve the pointer from the structure that DSA keeps in skb->cb. Then these clones are enqueued to the socket's error queue for application-level processing. Signed-off-by: Vladimir Oltean Signed-off-by: David S. Miller --- drivers/net/dsa/sja1105/sja1105_spi.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/net/dsa/sja1105/sja1105_spi.c') diff --git a/drivers/net/dsa/sja1105/sja1105_spi.c b/drivers/net/dsa/sja1105/sja1105_spi.c index a0d08e6c22ff..d729a0f0b28e 100644 --- a/drivers/net/dsa/sja1105/sja1105_spi.c +++ b/drivers/net/dsa/sja1105/sja1105_spi.c @@ -514,6 +514,7 @@ static struct sja1105_regs sja1105et_regs = { .rgmii_tx_clk = {0x100016, 0x10001D, 0x100024, 0x10002B, 0x100032}, .rmii_ref_clk = {0x100015, 0x10001C, 0x100023, 0x10002A, 0x100031}, .rmii_ext_tx_clk = {0x100018, 0x10001F, 0x100026, 0x10002D, 0x100034}, + .ptpegr_ts = {0xC0, 0xC2, 0xC4, 0xC6, 0xC8}, .ptp_control = 0x17, .ptpclk = 0x18, /* Spans 0x18 to 0x19 */ .ptpclkrate = 0x1A, @@ -544,6 +545,7 @@ static struct sja1105_regs sja1105pqrs_regs = { .rmii_ref_clk = {0x100015, 0x10001B, 0x100021, 0x100027, 0x10002D}, .rmii_ext_tx_clk = {0x100017, 0x10001D, 0x100023, 0x100029, 0x10002F}, .qlevel = {0x604, 0x614, 0x624, 0x634, 0x644}, + .ptpegr_ts = {0xC0, 0xC4, 0xC8, 0xCC, 0xD0}, .ptp_control = 0x18, .ptpclk = 0x19, .ptpclkrate = 0x1B, @@ -555,6 +557,8 @@ struct sja1105_info sja1105e_info = { .part_no = SJA1105ET_PART_NO, .static_ops = sja1105e_table_ops, .dyn_ops = sja1105et_dyn_ops, + .ptp_ts_bits = 24, + .ptpegr_ts_bytes = 4, .reset_cmd = sja1105et_reset_cmd, .fdb_add_cmd = sja1105et_fdb_add, .fdb_del_cmd = sja1105et_fdb_del, @@ -567,6 +571,8 @@ struct sja1105_info sja1105t_info = { .part_no = SJA1105ET_PART_NO, .static_ops = sja1105t_table_ops, .dyn_ops = sja1105et_dyn_ops, + .ptp_ts_bits = 24, + .ptpegr_ts_bytes = 4, .reset_cmd = sja1105et_reset_cmd, .fdb_add_cmd = sja1105et_fdb_add, .fdb_del_cmd = sja1105et_fdb_del, @@ -579,6 +585,8 @@ struct sja1105_info sja1105p_info = { .part_no = SJA1105P_PART_NO, .static_ops = sja1105p_table_ops, .dyn_ops = sja1105pqrs_dyn_ops, + .ptp_ts_bits = 32, + .ptpegr_ts_bytes = 8, .reset_cmd = sja1105pqrs_reset_cmd, .fdb_add_cmd = sja1105pqrs_fdb_add, .fdb_del_cmd = sja1105pqrs_fdb_del, @@ -591,6 +599,8 @@ struct sja1105_info sja1105q_info = { .part_no = SJA1105Q_PART_NO, .static_ops = sja1105q_table_ops, .dyn_ops = sja1105pqrs_dyn_ops, + .ptp_ts_bits = 32, + .ptpegr_ts_bytes = 8, .reset_cmd = sja1105pqrs_reset_cmd, .fdb_add_cmd = sja1105pqrs_fdb_add, .fdb_del_cmd = sja1105pqrs_fdb_del, @@ -603,6 +613,8 @@ struct sja1105_info sja1105r_info = { .part_no = SJA1105R_PART_NO, .static_ops = sja1105r_table_ops, .dyn_ops = sja1105pqrs_dyn_ops, + .ptp_ts_bits = 32, + .ptpegr_ts_bytes = 8, .reset_cmd = sja1105pqrs_reset_cmd, .fdb_add_cmd = sja1105pqrs_fdb_add, .fdb_del_cmd = sja1105pqrs_fdb_del, @@ -616,6 +628,8 @@ struct sja1105_info sja1105s_info = { .static_ops = sja1105s_table_ops, .dyn_ops = sja1105pqrs_dyn_ops, .regs = &sja1105pqrs_regs, + .ptp_ts_bits = 32, + .ptpegr_ts_bytes = 8, .reset_cmd = sja1105pqrs_reset_cmd, .fdb_add_cmd = sja1105pqrs_fdb_add, .fdb_del_cmd = sja1105pqrs_fdb_del, -- cgit v1.2.3-59-g8ed1b