* [PATCH net-next 1/4] igb: move SDP config initialization to separate function
2021-12-29 18:40 [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29 Tony Nguyen
@ 2021-12-29 18:40 ` Tony Nguyen
2021-12-29 18:40 ` [PATCH net-next 2/4] igb: move PEROUT and EXTTS isr logic to separate functions Tony Nguyen
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Tony Nguyen @ 2021-12-29 18:40 UTC (permalink / raw)
To: davem, kuba
Cc: Ruud Bos, netdev, anthony.l.nguyen, richardcochran, Gurucharan G
From: Ruud Bos <kernel.hbk@gmail.com>
Allow reuse of SDP config struct initialization by moving it to a
separate function.
Signed-off-by: Ruud Bos <kernel.hbk@gmail.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
drivers/net/ethernet/intel/igb/igb_ptp.c | 27 +++++++++++++++++-------
1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 0ac4cc5eaa2d..538d59e501e7 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -69,6 +69,7 @@
#define IGB_NBITS_82580 40
static void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter);
+static void igb_ptp_sdp_init(struct igb_adapter *adapter);
/* SYSTIM read access for the 82576 */
static u64 igb_ptp_read_82576(const struct cyclecounter *cc)
@@ -1188,7 +1189,6 @@ void igb_ptp_init(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
- int i;
switch (hw->mac.type) {
case e1000_82576:
@@ -1229,13 +1229,7 @@ void igb_ptp_init(struct igb_adapter *adapter)
break;
case e1000_i210:
case e1000_i211:
- for (i = 0; i < IGB_N_SDP; i++) {
- struct ptp_pin_desc *ppd = &adapter->sdp_config[i];
-
- snprintf(ppd->name, sizeof(ppd->name), "SDP%d", i);
- ppd->index = i;
- ppd->func = PTP_PF_NONE;
- }
+ igb_ptp_sdp_init(adapter);
snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr);
adapter->ptp_caps.owner = THIS_MODULE;
adapter->ptp_caps.max_adj = 62499999;
@@ -1280,6 +1274,23 @@ void igb_ptp_init(struct igb_adapter *adapter)
}
}
+/**
+ * igb_ptp_sdp_init - utility function which inits the SDP config structs
+ * @adapter: Board private structure.
+ **/
+void igb_ptp_sdp_init(struct igb_adapter *adapter)
+{
+ int i;
+
+ for (i = 0; i < IGB_N_SDP; i++) {
+ struct ptp_pin_desc *ppd = &adapter->sdp_config[i];
+
+ snprintf(ppd->name, sizeof(ppd->name), "SDP%d", i);
+ ppd->index = i;
+ ppd->func = PTP_PF_NONE;
+ }
+}
+
/**
* igb_ptp_suspend - Disable PTP work items and prepare for suspend
* @adapter: Board private structure
--
2.31.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH net-next 2/4] igb: move PEROUT and EXTTS isr logic to separate functions
2021-12-29 18:40 [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29 Tony Nguyen
2021-12-29 18:40 ` [PATCH net-next 1/4] igb: move SDP config initialization to separate function Tony Nguyen
@ 2021-12-29 18:40 ` Tony Nguyen
2021-12-29 18:40 ` [PATCH net-next 3/4] igb: support PEROUT on 82580/i354/i350 Tony Nguyen
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Tony Nguyen @ 2021-12-29 18:40 UTC (permalink / raw)
To: davem, kuba
Cc: Ruud Bos, netdev, anthony.l.nguyen, richardcochran, Gurucharan G
From: Ruud Bos <kernel.hbk@gmail.com>
Remove code duplication in the tsync interrupt handler function by moving
this logic to separate functions. This keeps the interrupt handler readable
and allows the new functions to be extended for adapter types other than
i210.
Signed-off-by: Ruud Bos <kernel.hbk@gmail.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
drivers/net/ethernet/intel/igb/igb_main.c | 81 +++++++++++++----------
1 file changed, 46 insertions(+), 35 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 47ece02fce99..6d1d65f4a528 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6739,12 +6739,52 @@ void igb_update_stats(struct igb_adapter *adapter)
}
}
+static void igb_perout(struct igb_adapter *adapter, int tsintr_tt)
+{
+ int pin = ptp_find_pin(adapter->ptp_clock, PTP_PF_PEROUT, tsintr_tt);
+ struct e1000_hw *hw = &adapter->hw;
+ struct timespec64 ts;
+ u32 tsauxc;
+
+ if (pin < 0 || pin >= IGB_N_PEROUT)
+ return;
+
+ spin_lock(&adapter->tmreg_lock);
+ ts = timespec64_add(adapter->perout[pin].start,
+ adapter->perout[pin].period);
+ /* u32 conversion of tv_sec is safe until y2106 */
+ wr32((tsintr_tt == 1) ? E1000_TRGTTIML1 : E1000_TRGTTIML0, ts.tv_nsec);
+ wr32((tsintr_tt == 1) ? E1000_TRGTTIMH1 : E1000_TRGTTIMH0, (u32)ts.tv_sec);
+ tsauxc = rd32(E1000_TSAUXC);
+ tsauxc |= TSAUXC_EN_TT0;
+ wr32(E1000_TSAUXC, tsauxc);
+ adapter->perout[pin].start = ts;
+ spin_unlock(&adapter->tmreg_lock);
+}
+
+static void igb_extts(struct igb_adapter *adapter, int tsintr_tt)
+{
+ int pin = ptp_find_pin(adapter->ptp_clock, PTP_PF_EXTTS, tsintr_tt);
+ struct e1000_hw *hw = &adapter->hw;
+ struct ptp_clock_event event;
+ u32 sec, nsec;
+
+ if (pin < 0 || pin >= IGB_N_EXTTS)
+ return;
+
+ nsec = rd32((tsintr_tt == 1) ? E1000_AUXSTMPL1 : E1000_AUXSTMPL0);
+ sec = rd32((tsintr_tt == 1) ? E1000_AUXSTMPH1 : E1000_AUXSTMPH0);
+ event.type = PTP_CLOCK_EXTTS;
+ event.index = tsintr_tt;
+ event.timestamp = sec * 1000000000ULL + nsec;
+ ptp_clock_event(adapter->ptp_clock, &event);
+}
+
static void igb_tsync_interrupt(struct igb_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
+ u32 ack = 0, tsicr = rd32(E1000_TSICR);
struct ptp_clock_event event;
- struct timespec64 ts;
- u32 ack = 0, tsauxc, sec, nsec, tsicr = rd32(E1000_TSICR);
if (tsicr & TSINTR_SYS_WRAP) {
event.type = PTP_CLOCK_PPS;
@@ -6760,51 +6800,22 @@ static void igb_tsync_interrupt(struct igb_adapter *adapter)
}
if (tsicr & TSINTR_TT0) {
- spin_lock(&adapter->tmreg_lock);
- ts = timespec64_add(adapter->perout[0].start,
- adapter->perout[0].period);
- /* u32 conversion of tv_sec is safe until y2106 */
- wr32(E1000_TRGTTIML0, ts.tv_nsec);
- wr32(E1000_TRGTTIMH0, (u32)ts.tv_sec);
- tsauxc = rd32(E1000_TSAUXC);
- tsauxc |= TSAUXC_EN_TT0;
- wr32(E1000_TSAUXC, tsauxc);
- adapter->perout[0].start = ts;
- spin_unlock(&adapter->tmreg_lock);
+ igb_perout(adapter, 0);
ack |= TSINTR_TT0;
}
if (tsicr & TSINTR_TT1) {
- spin_lock(&adapter->tmreg_lock);
- ts = timespec64_add(adapter->perout[1].start,
- adapter->perout[1].period);
- wr32(E1000_TRGTTIML1, ts.tv_nsec);
- wr32(E1000_TRGTTIMH1, (u32)ts.tv_sec);
- tsauxc = rd32(E1000_TSAUXC);
- tsauxc |= TSAUXC_EN_TT1;
- wr32(E1000_TSAUXC, tsauxc);
- adapter->perout[1].start = ts;
- spin_unlock(&adapter->tmreg_lock);
+ igb_perout(adapter, 1);
ack |= TSINTR_TT1;
}
if (tsicr & TSINTR_AUTT0) {
- nsec = rd32(E1000_AUXSTMPL0);
- sec = rd32(E1000_AUXSTMPH0);
- event.type = PTP_CLOCK_EXTTS;
- event.index = 0;
- event.timestamp = sec * 1000000000ULL + nsec;
- ptp_clock_event(adapter->ptp_clock, &event);
+ igb_extts(adapter, 0);
ack |= TSINTR_AUTT0;
}
if (tsicr & TSINTR_AUTT1) {
- nsec = rd32(E1000_AUXSTMPL1);
- sec = rd32(E1000_AUXSTMPH1);
- event.type = PTP_CLOCK_EXTTS;
- event.index = 1;
- event.timestamp = sec * 1000000000ULL + nsec;
- ptp_clock_event(adapter->ptp_clock, &event);
+ igb_extts(adapter, 1);
ack |= TSINTR_AUTT1;
}
--
2.31.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH net-next 3/4] igb: support PEROUT on 82580/i354/i350
2021-12-29 18:40 [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29 Tony Nguyen
2021-12-29 18:40 ` [PATCH net-next 1/4] igb: move SDP config initialization to separate function Tony Nguyen
2021-12-29 18:40 ` [PATCH net-next 2/4] igb: move PEROUT and EXTTS isr logic to separate functions Tony Nguyen
@ 2021-12-29 18:40 ` Tony Nguyen
2021-12-29 18:40 ` [PATCH net-next 4/4] igb: support EXTTS " Tony Nguyen
2021-12-30 13:30 ` [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29 patchwork-bot+netdevbpf
4 siblings, 0 replies; 6+ messages in thread
From: Tony Nguyen @ 2021-12-29 18:40 UTC (permalink / raw)
To: davem, kuba
Cc: Ruud Bos, netdev, anthony.l.nguyen, richardcochran, Gurucharan G
From: Ruud Bos <kernel.hbk@gmail.com>
Support for the PEROUT PTP pin function on 82580/i354/i350 based adapters.
Because the time registers of these adapters do not have the nice split in
second rollovers as the i210 has, the implementation is slightly more
complex compared to the i210 implementation.
Signed-off-by: Ruud Bos <kernel.hbk@gmail.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
drivers/net/ethernet/intel/igb/igb_main.c | 59 +++++++++-
drivers/net/ethernet/intel/igb/igb_ptp.c | 127 +++++++++++++++++++++-
2 files changed, 182 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 6d1d65f4a528..bf8fb4347bc5 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6750,8 +6750,62 @@ static void igb_perout(struct igb_adapter *adapter, int tsintr_tt)
return;
spin_lock(&adapter->tmreg_lock);
- ts = timespec64_add(adapter->perout[pin].start,
- adapter->perout[pin].period);
+
+ if (hw->mac.type == e1000_82580 ||
+ hw->mac.type == e1000_i354 ||
+ hw->mac.type == e1000_i350) {
+ s64 ns = timespec64_to_ns(&adapter->perout[pin].period);
+ u32 systiml, systimh, level_mask, level, rem;
+ u64 systim, now;
+
+ /* read systim registers in sequence */
+ rd32(E1000_SYSTIMR);
+ systiml = rd32(E1000_SYSTIML);
+ systimh = rd32(E1000_SYSTIMH);
+ systim = (((u64)(systimh & 0xFF)) << 32) | ((u64)systiml);
+ now = timecounter_cyc2time(&adapter->tc, systim);
+
+ if (pin < 2) {
+ level_mask = (tsintr_tt == 1) ? 0x80000 : 0x40000;
+ level = (rd32(E1000_CTRL) & level_mask) ? 1 : 0;
+ } else {
+ level_mask = (tsintr_tt == 1) ? 0x80 : 0x40;
+ level = (rd32(E1000_CTRL_EXT) & level_mask) ? 1 : 0;
+ }
+
+ div_u64_rem(now, ns, &rem);
+ systim = systim + (ns - rem);
+
+ /* synchronize pin level with rising/falling edges */
+ div_u64_rem(now, ns << 1, &rem);
+ if (rem < ns) {
+ /* first half of period */
+ if (level == 0) {
+ /* output is already low, skip this period */
+ systim += ns;
+ pr_notice("igb: periodic output on %s missed falling edge\n",
+ adapter->sdp_config[pin].name);
+ }
+ } else {
+ /* second half of period */
+ if (level == 1) {
+ /* output is already high, skip this period */
+ systim += ns;
+ pr_notice("igb: periodic output on %s missed rising edge\n",
+ adapter->sdp_config[pin].name);
+ }
+ }
+
+ /* for this chip family tv_sec is the upper part of the binary value,
+ * so not seconds
+ */
+ ts.tv_nsec = (u32)systim;
+ ts.tv_sec = ((u32)(systim >> 32)) & 0xFF;
+ } else {
+ ts = timespec64_add(adapter->perout[pin].start,
+ adapter->perout[pin].period);
+ }
+
/* u32 conversion of tv_sec is safe until y2106 */
wr32((tsintr_tt == 1) ? E1000_TRGTTIML1 : E1000_TRGTTIML0, ts.tv_nsec);
wr32((tsintr_tt == 1) ? E1000_TRGTTIMH1 : E1000_TRGTTIMH0, (u32)ts.tv_sec);
@@ -6759,6 +6813,7 @@ static void igb_perout(struct igb_adapter *adapter, int tsintr_tt)
tsauxc |= TSAUXC_EN_TT0;
wr32(E1000_TSAUXC, tsauxc);
adapter->perout[pin].start = ts;
+
spin_unlock(&adapter->tmreg_lock);
}
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 538d59e501e7..33cde531560a 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -508,6 +508,124 @@ static void igb_pin_perout(struct igb_adapter *igb, int chan, int pin, int freq)
wr32(E1000_CTRL_EXT, ctrl_ext);
}
+static int igb_ptp_feature_enable_82580(struct ptp_clock_info *ptp,
+ struct ptp_clock_request *rq, int on)
+{
+ struct igb_adapter *igb =
+ container_of(ptp, struct igb_adapter, ptp_caps);
+ u32 tsauxc, tsim, tsauxc_mask, tsim_mask, trgttiml, trgttimh, systiml,
+ systimh, level_mask, level, rem;
+ struct e1000_hw *hw = &igb->hw;
+ struct timespec64 ts, start;
+ unsigned long flags;
+ u64 systim, now;
+ int pin = -1;
+ s64 ns;
+
+ switch (rq->type) {
+ case PTP_CLK_REQ_EXTTS:
+ return -EOPNOTSUPP;
+
+ case PTP_CLK_REQ_PEROUT:
+ /* Reject requests with unsupported flags */
+ if (rq->perout.flags)
+ return -EOPNOTSUPP;
+
+ if (on) {
+ pin = ptp_find_pin(igb->ptp_clock, PTP_PF_PEROUT,
+ rq->perout.index);
+ if (pin < 0)
+ return -EBUSY;
+ }
+ ts.tv_sec = rq->perout.period.sec;
+ ts.tv_nsec = rq->perout.period.nsec;
+ ns = timespec64_to_ns(&ts);
+ ns = ns >> 1;
+ if (on && ns < 8LL)
+ return -EINVAL;
+ ts = ns_to_timespec64(ns);
+ if (rq->perout.index == 1) {
+ tsauxc_mask = TSAUXC_EN_TT1;
+ tsim_mask = TSINTR_TT1;
+ trgttiml = E1000_TRGTTIML1;
+ trgttimh = E1000_TRGTTIMH1;
+ } else {
+ tsauxc_mask = TSAUXC_EN_TT0;
+ tsim_mask = TSINTR_TT0;
+ trgttiml = E1000_TRGTTIML0;
+ trgttimh = E1000_TRGTTIMH0;
+ }
+ spin_lock_irqsave(&igb->tmreg_lock, flags);
+ tsauxc = rd32(E1000_TSAUXC);
+ tsim = rd32(E1000_TSIM);
+ if (rq->perout.index == 1) {
+ tsauxc &= ~(TSAUXC_EN_TT1 | TSAUXC_EN_CLK1 | TSAUXC_ST1);
+ tsim &= ~TSINTR_TT1;
+ } else {
+ tsauxc &= ~(TSAUXC_EN_TT0 | TSAUXC_EN_CLK0 | TSAUXC_ST0);
+ tsim &= ~TSINTR_TT0;
+ }
+ if (on) {
+ int i = rq->perout.index;
+
+ /* read systim registers in sequence */
+ rd32(E1000_SYSTIMR);
+ systiml = rd32(E1000_SYSTIML);
+ systimh = rd32(E1000_SYSTIMH);
+ systim = (((u64)(systimh & 0xFF)) << 32) | ((u64)systiml);
+ now = timecounter_cyc2time(&igb->tc, systim);
+
+ if (pin < 2) {
+ level_mask = (i == 1) ? 0x80000 : 0x40000;
+ level = (rd32(E1000_CTRL) & level_mask) ? 1 : 0;
+ } else {
+ level_mask = (i == 1) ? 0x80 : 0x40;
+ level = (rd32(E1000_CTRL_EXT) & level_mask) ? 1 : 0;
+ }
+
+ div_u64_rem(now, ns, &rem);
+ systim = systim + (ns - rem);
+
+ /* synchronize pin level with rising/falling edges */
+ div_u64_rem(now, ns << 1, &rem);
+ if (rem < ns) {
+ /* first half of period */
+ if (level == 0) {
+ /* output is already low, skip this period */
+ systim += ns;
+ }
+ } else {
+ /* second half of period */
+ if (level == 1) {
+ /* output is already high, skip this period */
+ systim += ns;
+ }
+ }
+
+ start = ns_to_timespec64(systim + (ns - rem));
+ igb_pin_perout(igb, i, pin, 0);
+ igb->perout[i].start.tv_sec = start.tv_sec;
+ igb->perout[i].start.tv_nsec = start.tv_nsec;
+ igb->perout[i].period.tv_sec = ts.tv_sec;
+ igb->perout[i].period.tv_nsec = ts.tv_nsec;
+
+ wr32(trgttiml, (u32)systim);
+ wr32(trgttimh, ((u32)(systim >> 32)) & 0xFF);
+ tsauxc |= tsauxc_mask;
+ tsim |= tsim_mask;
+ }
+ wr32(E1000_TSAUXC, tsauxc);
+ wr32(E1000_TSIM, tsim);
+ spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+ return 0;
+
+ case PTP_CLK_REQ_PPS:
+ return -EOPNOTSUPP;
+ }
+
+ return -EOPNOTSUPP;
+}
+
static int igb_ptp_feature_enable_i210(struct ptp_clock_info *ptp,
struct ptp_clock_request *rq, int on)
{
@@ -1211,16 +1329,21 @@ void igb_ptp_init(struct igb_adapter *adapter)
case e1000_82580:
case e1000_i354:
case e1000_i350:
+ igb_ptp_sdp_init(adapter);
snprintf(adapter->ptp_caps.name, 16, "%pm", netdev->dev_addr);
adapter->ptp_caps.owner = THIS_MODULE;
adapter->ptp_caps.max_adj = 62499999;
- adapter->ptp_caps.n_ext_ts = 0;
+ adapter->ptp_caps.n_ext_ts = IGB_N_EXTTS;
+ adapter->ptp_caps.n_per_out = IGB_N_PEROUT;
+ adapter->ptp_caps.n_pins = IGB_N_SDP;
adapter->ptp_caps.pps = 0;
+ adapter->ptp_caps.pin_config = adapter->sdp_config;
adapter->ptp_caps.adjfine = igb_ptp_adjfine_82580;
adapter->ptp_caps.adjtime = igb_ptp_adjtime_82576;
adapter->ptp_caps.gettimex64 = igb_ptp_gettimex_82580;
adapter->ptp_caps.settime64 = igb_ptp_settime_82576;
- adapter->ptp_caps.enable = igb_ptp_feature_enable;
+ adapter->ptp_caps.enable = igb_ptp_feature_enable_82580;
+ adapter->ptp_caps.verify = igb_ptp_verify_pin;
adapter->cc.read = igb_ptp_read_82580;
adapter->cc.mask = CYCLECOUNTER_MASK(IGB_NBITS_82580);
adapter->cc.mult = 1;
--
2.31.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH net-next 4/4] igb: support EXTTS on 82580/i354/i350
2021-12-29 18:40 [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29 Tony Nguyen
` (2 preceding siblings ...)
2021-12-29 18:40 ` [PATCH net-next 3/4] igb: support PEROUT on 82580/i354/i350 Tony Nguyen
@ 2021-12-29 18:40 ` Tony Nguyen
2021-12-30 13:30 ` [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29 patchwork-bot+netdevbpf
4 siblings, 0 replies; 6+ messages in thread
From: Tony Nguyen @ 2021-12-29 18:40 UTC (permalink / raw)
To: davem, kuba
Cc: Ruud Bos, netdev, anthony.l.nguyen, richardcochran, Gurucharan G
From: Ruud Bos <kernel.hbk@gmail.com>
Support for the PTP pin function on 82580/i354/i350 based adapters.
Because the time registers of these adapters do not have the nice split in
second rollovers as the i210 has, the implementation is slightly more
complex compared to the i210 implementation.
Signed-off-by: Ruud Bos <kernel.hbk@gmail.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
---
drivers/net/ethernet/intel/igb/igb_main.c | 20 ++++++++++---
drivers/net/ethernet/intel/igb/igb_ptp.c | 36 ++++++++++++++++++++++-
2 files changed, 51 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index bf8fb4347bc5..4603ae35fcab 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6820,18 +6820,30 @@ static void igb_perout(struct igb_adapter *adapter, int tsintr_tt)
static void igb_extts(struct igb_adapter *adapter, int tsintr_tt)
{
int pin = ptp_find_pin(adapter->ptp_clock, PTP_PF_EXTTS, tsintr_tt);
+ int auxstmpl = (tsintr_tt == 1) ? E1000_AUXSTMPL1 : E1000_AUXSTMPL0;
+ int auxstmph = (tsintr_tt == 1) ? E1000_AUXSTMPH1 : E1000_AUXSTMPH0;
struct e1000_hw *hw = &adapter->hw;
struct ptp_clock_event event;
- u32 sec, nsec;
+ struct timespec64 ts;
if (pin < 0 || pin >= IGB_N_EXTTS)
return;
- nsec = rd32((tsintr_tt == 1) ? E1000_AUXSTMPL1 : E1000_AUXSTMPL0);
- sec = rd32((tsintr_tt == 1) ? E1000_AUXSTMPH1 : E1000_AUXSTMPH0);
+ if (hw->mac.type == e1000_82580 ||
+ hw->mac.type == e1000_i354 ||
+ hw->mac.type == e1000_i350) {
+ s64 ns = rd32(auxstmpl);
+
+ ns += ((s64)(rd32(auxstmph) & 0xFF)) << 32;
+ ts = ns_to_timespec64(ns);
+ } else {
+ ts.tv_nsec = rd32(auxstmpl);
+ ts.tv_sec = rd32(auxstmph);
+ }
+
event.type = PTP_CLOCK_EXTTS;
event.index = tsintr_tt;
- event.timestamp = sec * 1000000000ULL + nsec;
+ event.timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec;
ptp_clock_event(adapter->ptp_clock, &event);
}
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 33cde531560a..6580fcddb4be 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -524,7 +524,41 @@ static int igb_ptp_feature_enable_82580(struct ptp_clock_info *ptp,
switch (rq->type) {
case PTP_CLK_REQ_EXTTS:
- return -EOPNOTSUPP;
+ /* Reject requests with unsupported flags */
+ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE |
+ PTP_RISING_EDGE |
+ PTP_FALLING_EDGE |
+ PTP_STRICT_FLAGS))
+ return -EOPNOTSUPP;
+
+ if (on) {
+ pin = ptp_find_pin(igb->ptp_clock, PTP_PF_EXTTS,
+ rq->extts.index);
+ if (pin < 0)
+ return -EBUSY;
+ }
+ if (rq->extts.index == 1) {
+ tsauxc_mask = TSAUXC_EN_TS1;
+ tsim_mask = TSINTR_AUTT1;
+ } else {
+ tsauxc_mask = TSAUXC_EN_TS0;
+ tsim_mask = TSINTR_AUTT0;
+ }
+ spin_lock_irqsave(&igb->tmreg_lock, flags);
+ tsauxc = rd32(E1000_TSAUXC);
+ tsim = rd32(E1000_TSIM);
+ if (on) {
+ igb_pin_extts(igb, rq->extts.index, pin);
+ tsauxc |= tsauxc_mask;
+ tsim |= tsim_mask;
+ } else {
+ tsauxc &= ~tsauxc_mask;
+ tsim &= ~tsim_mask;
+ }
+ wr32(E1000_TSAUXC, tsauxc);
+ wr32(E1000_TSIM, tsim);
+ spin_unlock_irqrestore(&igb->tmreg_lock, flags);
+ return 0;
case PTP_CLK_REQ_PEROUT:
/* Reject requests with unsupported flags */
--
2.31.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* Re: [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29
2021-12-29 18:40 [PATCH net-next 0/4][pull request] 1GbE Intel Wired LAN Driver Updates 2021-12-29 Tony Nguyen
` (3 preceding siblings ...)
2021-12-29 18:40 ` [PATCH net-next 4/4] igb: support EXTTS " Tony Nguyen
@ 2021-12-30 13:30 ` patchwork-bot+netdevbpf
4 siblings, 0 replies; 6+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-12-30 13:30 UTC (permalink / raw)
To: Tony Nguyen; +Cc: davem, kuba, netdev, kernel.hbk, richardcochran
Hello:
This series was applied to netdev/net-next.git (master)
by Tony Nguyen <anthony.l.nguyen@intel.com>:
On Wed, 29 Dec 2021 10:40:49 -0800 you wrote:
> Ruud Bos says:
>
> The igb driver provides support for PEROUT and EXTTS pin functions that
> allow adapter external use of timing signals. At Hottinger Bruel & Kjaer we
> are using the PEROUT function to feed a PTP corrected 1pps signal into an
> FPGA as cross system synchronized time source.
>
> [...]
Here is the summary with links:
- [net-next,1/4] igb: move SDP config initialization to separate function
https://git.kernel.org/netdev/net-next/c/8ab55aba31ee
- [net-next,2/4] igb: move PEROUT and EXTTS isr logic to separate functions
https://git.kernel.org/netdev/net-next/c/cf99c1dd7b77
- [net-next,3/4] igb: support PEROUT on 82580/i354/i350
https://git.kernel.org/netdev/net-next/c/1819fc753aca
- [net-next,4/4] igb: support EXTTS on 82580/i354/i350
https://git.kernel.org/netdev/net-next/c/38970eac41db
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 6+ messages in thread