* [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03
@ 2016-11-03 18:17 Tom Lendacky
2016-11-03 18:17 ` [PATCH net-next v1 01/10] amd-xgbe: Fix formatting of PCS register dump Tom Lendacky
` (10 more replies)
0 siblings, 11 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:17 UTC (permalink / raw)
To: netdev; +Cc: David Miller
This patch series is targeted at preparing the driver for a new PCI version
of the hardware. After this series is applied, a follow-on series will
introduce the support for the PCI version of the hardware.
The following updates and fixes are included in this driver update series:
- Fix formatting of PCS debug register dump
- Prepare for priority-based FIFO allocation
- Implement priority-based FIFO allocation
- Prepare for working with more than one type of PCS/PHY
- Prepare for the introduction of clause 37 auto-negotiation
- Add support for clause 37 auto-negotiation
- Prepare for supporting a new PCS register access method
- Add support for 64-bit management counter registers
- Update DMA channel status determination
- Prepare for supporting PCI devices in addition to platform devices
This patch series is based on net-next.
---
Tom Lendacky (10):
amd-xgbe: Fix formatting of PCS register dump
amd-xgbe: Prepare for priority-based FIFO allocation
amd-xgbe: Perform priority-based hardware FIFO allocation
amd-xgbe: Prepare for working with more than one type of phy
amd-xgbe: Prepare for introduction of clause 37 autoneg
amd-xgbe: Add support for clause 37 auto-negotiation
amd-xgbe: Prepare for a new PCS register access method
amd-xgbe: Support for 64-bit management counter registers
amd-xgbe: Update how to determine DMA channel status
amd-xgbe: Prepare for supporting PCI devices
drivers/net/ethernet/amd/xgbe/Makefile | 4
drivers/net/ethernet/amd/xgbe/xgbe-common.h | 71 ++
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 847 ++++++++++++++++-----
drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 28 -
drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c | 19
drivers/net/ethernet/amd/xgbe/xgbe-main.c | 662 ++---------------
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 990 ++++++++++++++-----------
drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c | 828 +++++++++++++++++++++
drivers/net/ethernet/amd/xgbe/xgbe-platform.c | 632 ++++++++++++++++
drivers/net/ethernet/amd/xgbe/xgbe.h | 213 ++++-
10 files changed, 2923 insertions(+), 1371 deletions(-)
create mode 100644 drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c
create mode 100644 drivers/net/ethernet/amd/xgbe/xgbe-platform.c
--
Tom Lendacky
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH net-next v1 01/10] amd-xgbe: Fix formatting of PCS register dump
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
@ 2016-11-03 18:17 ` Tom Lendacky
2016-11-03 18:17 ` [PATCH net-next v1 02/10] amd-xgbe: Prepare for priority-based FIFO allocation Tom Lendacky
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:17 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Fix the length value used for the PCS register dump so that the full
value can be displayed.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 24 ++++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 84c5d29..e9b01fc 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -1257,33 +1257,33 @@ static void xgbe_dump_phy_registers(struct xgbe_prv_data *pdata)
dev_dbg(dev, "\n************* PHY Reg dump **********************\n");
- dev_dbg(dev, "PCS Control Reg (%#04x) = %#04x\n", MDIO_CTRL1,
+ dev_dbg(dev, "PCS Control Reg (%#06x) = %#06x\n", MDIO_CTRL1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1));
- dev_dbg(dev, "PCS Status Reg (%#04x) = %#04x\n", MDIO_STAT1,
+ dev_dbg(dev, "PCS Status Reg (%#06x) = %#06x\n", MDIO_STAT1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1));
- dev_dbg(dev, "Phy Id (PHYS ID 1 %#04x)= %#04x\n", MDIO_DEVID1,
+ dev_dbg(dev, "Phy Id (PHYS ID 1 %#06x)= %#06x\n", MDIO_DEVID1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVID1));
- dev_dbg(dev, "Phy Id (PHYS ID 2 %#04x)= %#04x\n", MDIO_DEVID2,
+ dev_dbg(dev, "Phy Id (PHYS ID 2 %#06x)= %#06x\n", MDIO_DEVID2,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVID2));
- dev_dbg(dev, "Devices in Package (%#04x)= %#04x\n", MDIO_DEVS1,
+ dev_dbg(dev, "Devices in Package (%#06x)= %#06x\n", MDIO_DEVS1,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVS1));
- dev_dbg(dev, "Devices in Package (%#04x)= %#04x\n", MDIO_DEVS2,
+ dev_dbg(dev, "Devices in Package (%#06x)= %#06x\n", MDIO_DEVS2,
XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_DEVS2));
- dev_dbg(dev, "Auto-Neg Control Reg (%#04x) = %#04x\n", MDIO_CTRL1,
+ dev_dbg(dev, "Auto-Neg Control Reg (%#06x) = %#06x\n", MDIO_CTRL1,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_CTRL1));
- dev_dbg(dev, "Auto-Neg Status Reg (%#04x) = %#04x\n", MDIO_STAT1,
+ dev_dbg(dev, "Auto-Neg Status Reg (%#06x) = %#06x\n", MDIO_STAT1,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_STAT1));
- dev_dbg(dev, "Auto-Neg Ad Reg 1 (%#04x) = %#04x\n",
+ dev_dbg(dev, "Auto-Neg Ad Reg 1 (%#06x) = %#06x\n",
MDIO_AN_ADVERTISE,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE));
- dev_dbg(dev, "Auto-Neg Ad Reg 2 (%#04x) = %#04x\n",
+ dev_dbg(dev, "Auto-Neg Ad Reg 2 (%#06x) = %#06x\n",
MDIO_AN_ADVERTISE + 1,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 1));
- dev_dbg(dev, "Auto-Neg Ad Reg 3 (%#04x) = %#04x\n",
+ dev_dbg(dev, "Auto-Neg Ad Reg 3 (%#06x) = %#06x\n",
MDIO_AN_ADVERTISE + 2,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2));
- dev_dbg(dev, "Auto-Neg Completion Reg (%#04x) = %#04x\n",
+ dev_dbg(dev, "Auto-Neg Completion Reg (%#06x) = %#06x\n",
MDIO_AN_COMP_STAT,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_COMP_STAT));
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 02/10] amd-xgbe: Prepare for priority-based FIFO allocation
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
2016-11-03 18:17 ` [PATCH net-next v1 01/10] amd-xgbe: Fix formatting of PCS register dump Tom Lendacky
@ 2016-11-03 18:17 ` Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 03/10] amd-xgbe: Perform priority-based hardware " Tom Lendacky
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:17 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Currently, the Rx and Tx fifos are evenly allocated between the hardware
queues of the device. As more queues are instantiated, the fifo memory
needs to be able to be allocated based on queue priority. This allows for
higher priority queues to have more fifo memory than lower priority
queues. Prepare for this by modifying the current fifo calculation to
assign the fifo queue allocation in an array that is then used to program
the hardware.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 55 +++++++++++++++++++++---------
drivers/net/ethernet/amd/xgbe/xgbe.h | 3 +-
2 files changed, 41 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index 1babcc1..18f8001 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -2000,19 +2000,37 @@ static void xgbe_config_mtl_mode(struct xgbe_prv_data *pdata)
XGMAC_IOWRITE_BITS(pdata, MTL_OMR, RAA, MTL_RAA_SP);
}
-static unsigned int xgbe_calculate_per_queue_fifo(unsigned int fifo_size,
- unsigned int queue_count)
+static unsigned int xgbe_get_tx_fifo_size(struct xgbe_prv_data *pdata)
{
- unsigned int q_fifo_size;
- unsigned int p_fifo;
+ unsigned int fifo_size;
/* Calculate the configured fifo size */
- q_fifo_size = 1 << (fifo_size + 7);
+ fifo_size = 1 << (pdata->hw_feat.tx_fifo_size + 7);
/* The configured value may not be the actual amount of fifo RAM */
- q_fifo_size = min_t(unsigned int, XGBE_FIFO_MAX, q_fifo_size);
+ return min_t(unsigned int, XGMAC_FIFO_TX_MAX, fifo_size);
+}
+
+static unsigned int xgbe_get_rx_fifo_size(struct xgbe_prv_data *pdata)
+{
+ unsigned int fifo_size;
- q_fifo_size = q_fifo_size / queue_count;
+ /* Calculate the configured fifo size */
+ fifo_size = 1 << (pdata->hw_feat.rx_fifo_size + 7);
+
+ /* The configured value may not be the actual amount of fifo RAM */
+ return min_t(unsigned int, XGMAC_FIFO_RX_MAX, fifo_size);
+}
+
+static void xgbe_calculate_equal_fifo(unsigned int fifo_size,
+ unsigned int queue_count,
+ unsigned int *fifo)
+{
+ unsigned int q_fifo_size;
+ unsigned int p_fifo;
+ unsigned int i;
+
+ q_fifo_size = fifo_size / queue_count;
/* Each increment in the queue fifo size represents 256 bytes of
* fifo, with 0 representing 256 bytes. Distribute the fifo equally
@@ -2022,39 +2040,44 @@ static unsigned int xgbe_calculate_per_queue_fifo(unsigned int fifo_size,
if (p_fifo)
p_fifo--;
- return p_fifo;
+ for (i = 0; i < queue_count; i++)
+ fifo[i] = p_fifo;
}
static void xgbe_config_tx_fifo_size(struct xgbe_prv_data *pdata)
{
unsigned int fifo_size;
+ unsigned int fifo[XGBE_MAX_QUEUES];
unsigned int i;
- fifo_size = xgbe_calculate_per_queue_fifo(pdata->hw_feat.tx_fifo_size,
- pdata->tx_q_count);
+ fifo_size = xgbe_get_tx_fifo_size(pdata);
+
+ xgbe_calculate_equal_fifo(fifo_size, pdata->tx_q_count, fifo);
for (i = 0; i < pdata->tx_q_count; i++)
- XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TQS, fifo_size);
+ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_TQOMR, TQS, fifo[i]);
netif_info(pdata, drv, pdata->netdev,
"%d Tx hardware queues, %d byte fifo per queue\n",
- pdata->tx_q_count, ((fifo_size + 1) * 256));
+ pdata->tx_q_count, ((fifo[0] + 1) * 256));
}
static void xgbe_config_rx_fifo_size(struct xgbe_prv_data *pdata)
{
unsigned int fifo_size;
+ unsigned int fifo[XGBE_MAX_QUEUES];
unsigned int i;
- fifo_size = xgbe_calculate_per_queue_fifo(pdata->hw_feat.rx_fifo_size,
- pdata->rx_q_count);
+ fifo_size = xgbe_get_rx_fifo_size(pdata);
+
+ xgbe_calculate_equal_fifo(fifo_size, pdata->rx_q_count, fifo);
for (i = 0; i < pdata->rx_q_count; i++)
- XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RQS, fifo_size);
+ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RQS, fifo[i]);
netif_info(pdata, drv, pdata->netdev,
"%d Rx hardware queues, %d byte fifo per queue\n",
- pdata->rx_q_count, ((fifo_size + 1) * 256));
+ pdata->rx_q_count, ((fifo[0] + 1) * 256));
}
static void xgbe_config_queue_mapping(struct xgbe_prv_data *pdata)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 5dd17dc..d838b44 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -208,7 +208,8 @@
#define XGMAC_DRIVER_CONTEXT 1
#define XGMAC_IOCTL_CONTEXT 2
-#define XGBE_FIFO_MAX 81920
+#define XGMAC_FIFO_RX_MAX 81920
+#define XGMAC_FIFO_TX_MAX 81920
#define XGBE_TC_MIN_QUANTUM 10
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 03/10] amd-xgbe: Perform priority-based hardware FIFO allocation
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
2016-11-03 18:17 ` [PATCH net-next v1 01/10] amd-xgbe: Fix formatting of PCS register dump Tom Lendacky
2016-11-03 18:17 ` [PATCH net-next v1 02/10] amd-xgbe: Prepare for priority-based FIFO allocation Tom Lendacky
@ 2016-11-03 18:18 ` Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 04/10] amd-xgbe: Prepare for working with more than one type of phy Tom Lendacky
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:18 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Allocate the FIFO across the hardware Rx queues based on the priority
of the queues. Giving more FIFO resources to queues with a higher
priority. If PFC is active but not enabled for a queue, then less
resources can allocated to the queue.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 547 ++++++++++++++++++++++--------
drivers/net/ethernet/amd/xgbe/xgbe.h | 26 +
2 files changed, 434 insertions(+), 139 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index 18f8001..f8fffea 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -123,6 +123,11 @@
#include "xgbe.h"
#include "xgbe-common.h"
+static inline unsigned int xgbe_get_max_frame(struct xgbe_prv_data *pdata)
+{
+ return pdata->netdev->mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
+}
+
static unsigned int xgbe_usec_to_riwt(struct xgbe_prv_data *pdata,
unsigned int usec)
{
@@ -491,6 +496,27 @@ static void xgbe_config_rss(struct xgbe_prv_data *pdata)
"error configuring RSS, RSS disabled\n");
}
+static bool xgbe_is_pfc_queue(struct xgbe_prv_data *pdata,
+ unsigned int queue)
+{
+ unsigned int prio, tc;
+
+ for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) {
+ /* Does this queue handle the priority? */
+ if (pdata->prio2q_map[prio] != queue)
+ continue;
+
+ /* Get the Traffic Class for this priority */
+ tc = pdata->ets->prio_tc[prio];
+
+ /* Check if PFC is enabled for this traffic class */
+ if (pdata->pfc->pfc_en & (1 << tc))
+ return true;
+ }
+
+ return false;
+}
+
static int xgbe_disable_tx_flow_control(struct xgbe_prv_data *pdata)
{
unsigned int max_q_count, q_count;
@@ -528,27 +554,14 @@ static int xgbe_enable_tx_flow_control(struct xgbe_prv_data *pdata)
for (i = 0; i < pdata->rx_q_count; i++) {
unsigned int ehfc = 0;
- if (pfc && ets) {
- unsigned int prio;
-
- for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) {
- unsigned int tc;
-
- /* Does this queue handle the priority? */
- if (pdata->prio2q_map[prio] != i)
- continue;
-
- /* Get the Traffic Class for this priority */
- tc = ets->prio_tc[prio];
-
- /* Check if flow control should be enabled */
- if (pfc->pfc_en & (1 << tc)) {
+ if (pdata->rx_rfd[i]) {
+ /* Flow control thresholds are established */
+ if (pfc && ets) {
+ if (xgbe_is_pfc_queue(pdata, i))
ehfc = 1;
- break;
- }
+ } else {
+ ehfc = 1;
}
- } else {
- ehfc = 1;
}
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, EHFC, ehfc);
@@ -1327,106 +1340,6 @@ static int xgbe_config_tstamp(struct xgbe_prv_data *pdata,
return 0;
}
-static void xgbe_config_tc(struct xgbe_prv_data *pdata)
-{
- unsigned int offset, queue, prio;
- u8 i;
-
- netdev_reset_tc(pdata->netdev);
- if (!pdata->num_tcs)
- return;
-
- netdev_set_num_tc(pdata->netdev, pdata->num_tcs);
-
- for (i = 0, queue = 0, offset = 0; i < pdata->num_tcs; i++) {
- while ((queue < pdata->tx_q_count) &&
- (pdata->q2tc_map[queue] == i))
- queue++;
-
- netif_dbg(pdata, drv, pdata->netdev, "TC%u using TXq%u-%u\n",
- i, offset, queue - 1);
- netdev_set_tc_queue(pdata->netdev, i, queue - offset, offset);
- offset = queue;
- }
-
- if (!pdata->ets)
- return;
-
- for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++)
- netdev_set_prio_tc_map(pdata->netdev, prio,
- pdata->ets->prio_tc[prio]);
-}
-
-static void xgbe_config_dcb_tc(struct xgbe_prv_data *pdata)
-{
- struct ieee_ets *ets = pdata->ets;
- unsigned int total_weight, min_weight, weight;
- unsigned int mask, reg, reg_val;
- unsigned int i, prio;
-
- if (!ets)
- return;
-
- /* Set Tx to deficit weighted round robin scheduling algorithm (when
- * traffic class is using ETS algorithm)
- */
- XGMAC_IOWRITE_BITS(pdata, MTL_OMR, ETSALG, MTL_ETSALG_DWRR);
-
- /* Set Traffic Class algorithms */
- total_weight = pdata->netdev->mtu * pdata->hw_feat.tc_cnt;
- min_weight = total_weight / 100;
- if (!min_weight)
- min_weight = 1;
-
- for (i = 0; i < pdata->hw_feat.tc_cnt; i++) {
- /* Map the priorities to the traffic class */
- mask = 0;
- for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) {
- if (ets->prio_tc[prio] == i)
- mask |= (1 << prio);
- }
- mask &= 0xff;
-
- netif_dbg(pdata, drv, pdata->netdev, "TC%u PRIO mask=%#x\n",
- i, mask);
- reg = MTL_TCPM0R + (MTL_TCPM_INC * (i / MTL_TCPM_TC_PER_REG));
- reg_val = XGMAC_IOREAD(pdata, reg);
-
- reg_val &= ~(0xff << ((i % MTL_TCPM_TC_PER_REG) << 3));
- reg_val |= (mask << ((i % MTL_TCPM_TC_PER_REG) << 3));
-
- XGMAC_IOWRITE(pdata, reg, reg_val);
-
- /* Set the traffic class algorithm */
- switch (ets->tc_tsa[i]) {
- case IEEE_8021QAZ_TSA_STRICT:
- netif_dbg(pdata, drv, pdata->netdev,
- "TC%u using SP\n", i);
- XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA,
- MTL_TSA_SP);
- break;
- case IEEE_8021QAZ_TSA_ETS:
- weight = total_weight * ets->tc_tx_bw[i] / 100;
- weight = clamp(weight, min_weight, total_weight);
-
- netif_dbg(pdata, drv, pdata->netdev,
- "TC%u using DWRR (weight %u)\n", i, weight);
- XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA,
- MTL_TSA_ETS);
- XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_QWR, QW,
- weight);
- break;
- }
- }
-
- xgbe_config_tc(pdata);
-}
-
-static void xgbe_config_dcb_pfc(struct xgbe_prv_data *pdata)
-{
- xgbe_config_flow_control(pdata);
-}
-
static void xgbe_tx_start_xmit(struct xgbe_channel *channel,
struct xgbe_ring *ring)
{
@@ -2000,6 +1913,96 @@ static void xgbe_config_mtl_mode(struct xgbe_prv_data *pdata)
XGMAC_IOWRITE_BITS(pdata, MTL_OMR, RAA, MTL_RAA_SP);
}
+static void xgbe_queue_flow_control_threshold(struct xgbe_prv_data *pdata,
+ unsigned int queue,
+ unsigned int q_fifo_size)
+{
+ unsigned int frame_fifo_size;
+ unsigned int rfa, rfd;
+
+ frame_fifo_size = XGMAC_FLOW_CONTROL_ALIGN(xgbe_get_max_frame(pdata));
+
+ if (pdata->pfcq[queue] && (q_fifo_size > pdata->pfc_rfa)) {
+ /* PFC is active for this queue */
+ rfa = pdata->pfc_rfa;
+ rfd = rfa + frame_fifo_size;
+ if (rfd > XGMAC_FLOW_CONTROL_MAX)
+ rfd = XGMAC_FLOW_CONTROL_MAX;
+ if (rfa >= XGMAC_FLOW_CONTROL_MAX)
+ rfa = XGMAC_FLOW_CONTROL_MAX - XGMAC_FLOW_CONTROL_UNIT;
+ } else {
+ /* This path deals with just maximum frame sizes which are
+ * limited to a jumbo frame of 9,000 (plus headers, etc.)
+ * so we can never exceed the maximum allowable RFA/RFD
+ * values.
+ */
+ if (q_fifo_size <= 2048) {
+ /* rx_rfd to zero to signal no flow control */
+ pdata->rx_rfa[queue] = 0;
+ pdata->rx_rfd[queue] = 0;
+ return;
+ }
+
+ if (q_fifo_size <= 4096) {
+ /* Between 2048 and 4096 */
+ pdata->rx_rfa[queue] = 0; /* Full - 1024 bytes */
+ pdata->rx_rfd[queue] = 1; /* Full - 1536 bytes */
+ return;
+ }
+
+ if (q_fifo_size <= frame_fifo_size) {
+ /* Between 4096 and max-frame */
+ pdata->rx_rfa[queue] = 2; /* Full - 2048 bytes */
+ pdata->rx_rfd[queue] = 5; /* Full - 3584 bytes */
+ return;
+ }
+
+ if (q_fifo_size <= (frame_fifo_size * 3)) {
+ /* Between max-frame and 3 max-frames,
+ * trigger if we get just over a frame of data and
+ * resume when we have just under half a frame left.
+ */
+ rfa = q_fifo_size - frame_fifo_size;
+ rfd = rfa + (frame_fifo_size / 2);
+ } else {
+ /* Above 3 max-frames - trigger when just over
+ * 2 frames of space available
+ */
+ rfa = frame_fifo_size * 2;
+ rfa += XGMAC_FLOW_CONTROL_UNIT;
+ rfd = rfa + frame_fifo_size;
+ }
+ }
+
+ pdata->rx_rfa[queue] = XGMAC_FLOW_CONTROL_VALUE(rfa);
+ pdata->rx_rfd[queue] = XGMAC_FLOW_CONTROL_VALUE(rfd);
+}
+
+static void xgbe_calculate_flow_control_threshold(struct xgbe_prv_data *pdata,
+ unsigned int *fifo)
+{
+ unsigned int q_fifo_size;
+ unsigned int i;
+
+ for (i = 0; i < pdata->rx_q_count; i++) {
+ q_fifo_size = (fifo[i] + 1) * XGMAC_FIFO_UNIT;
+
+ xgbe_queue_flow_control_threshold(pdata, i, q_fifo_size);
+ }
+}
+
+static void xgbe_config_flow_control_threshold(struct xgbe_prv_data *pdata)
+{
+ unsigned int i;
+
+ for (i = 0; i < pdata->rx_q_count; i++) {
+ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQFCR, RFA,
+ pdata->rx_rfa[i]);
+ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQFCR, RFD,
+ pdata->rx_rfd[i]);
+ }
+}
+
static unsigned int xgbe_get_tx_fifo_size(struct xgbe_prv_data *pdata)
{
unsigned int fifo_size;
@@ -2032,18 +2035,158 @@ static void xgbe_calculate_equal_fifo(unsigned int fifo_size,
q_fifo_size = fifo_size / queue_count;
- /* Each increment in the queue fifo size represents 256 bytes of
- * fifo, with 0 representing 256 bytes. Distribute the fifo equally
- * between the queues.
+ /* Calculate the fifo setting by dividing the queue's fifo size
+ * by the fifo allocation increment (with 0 representing the
+ * base allocation increment so decrement the result by 1).
*/
- p_fifo = q_fifo_size / 256;
+ p_fifo = q_fifo_size / XGMAC_FIFO_UNIT;
if (p_fifo)
p_fifo--;
+ /* Distribute the fifo equally amongst the queues */
for (i = 0; i < queue_count; i++)
fifo[i] = p_fifo;
}
+static unsigned int xgbe_set_nonprio_fifos(unsigned int fifo_size,
+ unsigned int queue_count,
+ unsigned int *fifo)
+{
+ unsigned int i;
+
+ BUILD_BUG_ON_NOT_POWER_OF_2(XGMAC_FIFO_MIN_ALLOC);
+
+ if (queue_count <= IEEE_8021QAZ_MAX_TCS)
+ return fifo_size;
+
+ /* Rx queues 9 and up are for specialized packets,
+ * such as PTP or DCB control packets, etc. and
+ * don't require a large fifo
+ */
+ for (i = IEEE_8021QAZ_MAX_TCS; i < queue_count; i++) {
+ fifo[i] = (XGMAC_FIFO_MIN_ALLOC / XGMAC_FIFO_UNIT) - 1;
+ fifo_size -= XGMAC_FIFO_MIN_ALLOC;
+ }
+
+ return fifo_size;
+}
+
+static unsigned int xgbe_get_pfc_delay(struct xgbe_prv_data *pdata)
+{
+ unsigned int delay;
+
+ /* If a delay has been provided, use that */
+ if (pdata->pfc->delay)
+ return pdata->pfc->delay / 8;
+
+ /* Allow for two maximum size frames */
+ delay = xgbe_get_max_frame(pdata);
+ delay += XGMAC_ETH_PREAMBLE;
+ delay *= 2;
+
+ /* Allow for PFC frame */
+ delay += XGMAC_PFC_DATA_LEN;
+ delay += ETH_HLEN + ETH_FCS_LEN;
+ delay += XGMAC_ETH_PREAMBLE;
+
+ /* Allow for miscellaneous delays (LPI exit, cable, etc.) */
+ delay += XGMAC_PFC_DELAYS;
+
+ return delay;
+}
+
+static unsigned int xgbe_get_pfc_queues(struct xgbe_prv_data *pdata)
+{
+ unsigned int count, prio_queues;
+ unsigned int i;
+
+ if (!pdata->pfc->pfc_en)
+ return 0;
+
+ count = 0;
+ prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count);
+ for (i = 0; i < prio_queues; i++) {
+ if (!xgbe_is_pfc_queue(pdata, i))
+ continue;
+
+ pdata->pfcq[i] = 1;
+ count++;
+ }
+
+ return count;
+}
+
+static void xgbe_calculate_dcb_fifo(struct xgbe_prv_data *pdata,
+ unsigned int fifo_size,
+ unsigned int *fifo)
+{
+ unsigned int q_fifo_size, rem_fifo, addn_fifo;
+ unsigned int prio_queues;
+ unsigned int pfc_count;
+ unsigned int i;
+
+ q_fifo_size = XGMAC_FIFO_ALIGN(xgbe_get_max_frame(pdata));
+ prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count);
+ pfc_count = xgbe_get_pfc_queues(pdata);
+
+ if (!pfc_count || ((q_fifo_size * prio_queues) > fifo_size)) {
+ /* No traffic classes with PFC enabled or can't do lossless */
+ xgbe_calculate_equal_fifo(fifo_size, prio_queues, fifo);
+ return;
+ }
+
+ /* Calculate how much fifo we have to play with */
+ rem_fifo = fifo_size - (q_fifo_size * prio_queues);
+
+ /* Calculate how much more than base fifo PFC needs, which also
+ * becomes the threshold activation point (RFA)
+ */
+ pdata->pfc_rfa = xgbe_get_pfc_delay(pdata);
+ pdata->pfc_rfa = XGMAC_FLOW_CONTROL_ALIGN(pdata->pfc_rfa);
+
+ if (pdata->pfc_rfa > q_fifo_size) {
+ addn_fifo = pdata->pfc_rfa - q_fifo_size;
+ addn_fifo = XGMAC_FIFO_ALIGN(addn_fifo);
+ } else {
+ addn_fifo = 0;
+ }
+
+ /* Calculate DCB fifo settings:
+ * - distribute remaining fifo between the VLAN priority
+ * queues based on traffic class PFC enablement and overall
+ * priority (0 is lowest priority, so start at highest)
+ */
+ i = prio_queues;
+ while (i > 0) {
+ i--;
+
+ fifo[i] = (q_fifo_size / XGMAC_FIFO_UNIT) - 1;
+
+ if (!pdata->pfcq[i] || !addn_fifo)
+ continue;
+
+ if (addn_fifo > rem_fifo) {
+ netdev_warn(pdata->netdev,
+ "RXq%u cannot set needed fifo size\n", i);
+ if (!rem_fifo)
+ continue;
+
+ addn_fifo = rem_fifo;
+ }
+
+ fifo[i] += (addn_fifo / XGMAC_FIFO_UNIT);
+ rem_fifo -= addn_fifo;
+ }
+
+ if (rem_fifo) {
+ unsigned int inc_fifo = rem_fifo / prio_queues;
+
+ /* Distribute remaining fifo across queues */
+ for (i = 0; i < prio_queues; i++)
+ fifo[i] += (inc_fifo / XGMAC_FIFO_UNIT);
+ }
+}
+
static void xgbe_config_tx_fifo_size(struct xgbe_prv_data *pdata)
{
unsigned int fifo_size;
@@ -2059,25 +2202,50 @@ static void xgbe_config_tx_fifo_size(struct xgbe_prv_data *pdata)
netif_info(pdata, drv, pdata->netdev,
"%d Tx hardware queues, %d byte fifo per queue\n",
- pdata->tx_q_count, ((fifo[0] + 1) * 256));
+ pdata->tx_q_count, ((fifo[0] + 1) * XGMAC_FIFO_UNIT));
}
static void xgbe_config_rx_fifo_size(struct xgbe_prv_data *pdata)
{
unsigned int fifo_size;
unsigned int fifo[XGBE_MAX_QUEUES];
+ unsigned int prio_queues;
unsigned int i;
+ /* Clear any DCB related fifo/queue information */
+ memset(pdata->pfcq, 0, sizeof(pdata->pfcq));
+ pdata->pfc_rfa = 0;
+
fifo_size = xgbe_get_rx_fifo_size(pdata);
+ prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count);
+
+ /* Assign a minimum fifo to the non-VLAN priority queues */
+ fifo_size = xgbe_set_nonprio_fifos(fifo_size, pdata->rx_q_count, fifo);
- xgbe_calculate_equal_fifo(fifo_size, pdata->rx_q_count, fifo);
+ if (pdata->pfc && pdata->ets)
+ xgbe_calculate_dcb_fifo(pdata, fifo_size, fifo);
+ else
+ xgbe_calculate_equal_fifo(fifo_size, prio_queues, fifo);
for (i = 0; i < pdata->rx_q_count; i++)
XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQOMR, RQS, fifo[i]);
- netif_info(pdata, drv, pdata->netdev,
- "%d Rx hardware queues, %d byte fifo per queue\n",
- pdata->rx_q_count, ((fifo[0] + 1) * 256));
+ xgbe_calculate_flow_control_threshold(pdata, fifo);
+ xgbe_config_flow_control_threshold(pdata);
+
+ if (pdata->pfc && pdata->ets && pdata->pfc->pfc_en) {
+ netif_info(pdata, drv, pdata->netdev,
+ "%u Rx hardware queues\n", pdata->rx_q_count);
+ for (i = 0; i < pdata->rx_q_count; i++)
+ netif_info(pdata, drv, pdata->netdev,
+ "RxQ%u, %u byte fifo queue\n", i,
+ ((fifo[i] + 1) * XGMAC_FIFO_UNIT));
+ } else {
+ netif_info(pdata, drv, pdata->netdev,
+ "%u Rx hardware queues, %u byte fifo per queue\n",
+ pdata->rx_q_count,
+ ((fifo[0] + 1) * XGMAC_FIFO_UNIT));
+ }
}
static void xgbe_config_queue_mapping(struct xgbe_prv_data *pdata)
@@ -2113,8 +2281,7 @@ static void xgbe_config_queue_mapping(struct xgbe_prv_data *pdata)
}
/* Map the 8 VLAN priority values to available MTL Rx queues */
- prio_queues = min_t(unsigned int, IEEE_8021QAZ_MAX_TCS,
- pdata->rx_q_count);
+ prio_queues = XGMAC_PRIO_QUEUES(pdata->rx_q_count);
ppq = IEEE_8021QAZ_MAX_TCS / prio_queues;
ppq_extra = IEEE_8021QAZ_MAX_TCS % prio_queues;
@@ -2162,16 +2329,120 @@ static void xgbe_config_queue_mapping(struct xgbe_prv_data *pdata)
}
}
-static void xgbe_config_flow_control_threshold(struct xgbe_prv_data *pdata)
+static void xgbe_config_tc(struct xgbe_prv_data *pdata)
{
- unsigned int i;
+ unsigned int offset, queue, prio;
+ u8 i;
- for (i = 0; i < pdata->rx_q_count; i++) {
- /* Activate flow control when less than 4k left in fifo */
- XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQFCR, RFA, 2);
+ netdev_reset_tc(pdata->netdev);
+ if (!pdata->num_tcs)
+ return;
+
+ netdev_set_num_tc(pdata->netdev, pdata->num_tcs);
+
+ for (i = 0, queue = 0, offset = 0; i < pdata->num_tcs; i++) {
+ while ((queue < pdata->tx_q_count) &&
+ (pdata->q2tc_map[queue] == i))
+ queue++;
+
+ netif_dbg(pdata, drv, pdata->netdev, "TC%u using TXq%u-%u\n",
+ i, offset, queue - 1);
+ netdev_set_tc_queue(pdata->netdev, i, queue - offset, offset);
+ offset = queue;
+ }
+
+ if (!pdata->ets)
+ return;
+
+ for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++)
+ netdev_set_prio_tc_map(pdata->netdev, prio,
+ pdata->ets->prio_tc[prio]);
+}
+
+static void xgbe_config_dcb_tc(struct xgbe_prv_data *pdata)
+{
+ struct ieee_ets *ets = pdata->ets;
+ unsigned int total_weight, min_weight, weight;
+ unsigned int mask, reg, reg_val;
+ unsigned int i, prio;
+
+ if (!ets)
+ return;
+
+ /* Set Tx to deficit weighted round robin scheduling algorithm (when
+ * traffic class is using ETS algorithm)
+ */
+ XGMAC_IOWRITE_BITS(pdata, MTL_OMR, ETSALG, MTL_ETSALG_DWRR);
+
+ /* Set Traffic Class algorithms */
+ total_weight = pdata->netdev->mtu * pdata->hw_feat.tc_cnt;
+ min_weight = total_weight / 100;
+ if (!min_weight)
+ min_weight = 1;
+
+ for (i = 0; i < pdata->hw_feat.tc_cnt; i++) {
+ /* Map the priorities to the traffic class */
+ mask = 0;
+ for (prio = 0; prio < IEEE_8021QAZ_MAX_TCS; prio++) {
+ if (ets->prio_tc[prio] == i)
+ mask |= (1 << prio);
+ }
+ mask &= 0xff;
+
+ netif_dbg(pdata, drv, pdata->netdev, "TC%u PRIO mask=%#x\n",
+ i, mask);
+ reg = MTL_TCPM0R + (MTL_TCPM_INC * (i / MTL_TCPM_TC_PER_REG));
+ reg_val = XGMAC_IOREAD(pdata, reg);
- /* De-activate flow control when more than 6k left in fifo */
- XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_Q_RQFCR, RFD, 4);
+ reg_val &= ~(0xff << ((i % MTL_TCPM_TC_PER_REG) << 3));
+ reg_val |= (mask << ((i % MTL_TCPM_TC_PER_REG) << 3));
+
+ XGMAC_IOWRITE(pdata, reg, reg_val);
+
+ /* Set the traffic class algorithm */
+ switch (ets->tc_tsa[i]) {
+ case IEEE_8021QAZ_TSA_STRICT:
+ netif_dbg(pdata, drv, pdata->netdev,
+ "TC%u using SP\n", i);
+ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA,
+ MTL_TSA_SP);
+ break;
+ case IEEE_8021QAZ_TSA_ETS:
+ weight = total_weight * ets->tc_tx_bw[i] / 100;
+ weight = clamp(weight, min_weight, total_weight);
+
+ netif_dbg(pdata, drv, pdata->netdev,
+ "TC%u using DWRR (weight %u)\n", i, weight);
+ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_ETSCR, TSA,
+ MTL_TSA_ETS);
+ XGMAC_MTL_IOWRITE_BITS(pdata, i, MTL_TC_QWR, QW,
+ weight);
+ break;
+ }
+ }
+
+ xgbe_config_tc(pdata);
+}
+
+static void xgbe_config_dcb_pfc(struct xgbe_prv_data *pdata)
+{
+ if (!test_bit(XGBE_DOWN, &pdata->dev_state)) {
+ /* Just stop the Tx queues while Rx fifo is changed */
+ netif_tx_stop_all_queues(pdata->netdev);
+
+ /* Suspend Rx so that fifo's can be adjusted */
+ pdata->hw_if.disable_rx(pdata);
+ }
+
+ xgbe_config_rx_fifo_size(pdata);
+ xgbe_config_flow_control(pdata);
+
+ if (!test_bit(XGBE_DOWN, &pdata->dev_state)) {
+ /* Resume Rx */
+ pdata->hw_if.enable_rx(pdata);
+
+ /* Resume Tx queues */
+ netif_tx_start_all_queues(pdata->netdev);
}
}
@@ -2879,12 +3150,10 @@ static int xgbe_init(struct xgbe_prv_data *pdata)
xgbe_config_rx_threshold(pdata, pdata->rx_threshold);
xgbe_config_tx_fifo_size(pdata);
xgbe_config_rx_fifo_size(pdata);
- xgbe_config_flow_control_threshold(pdata);
/*TODO: Error Packet and undersized good Packet forwarding enable
(FEP and FUP)
*/
xgbe_config_dcb_tc(pdata);
- xgbe_config_dcb_pfc(pdata);
xgbe_enable_mtl_interrupts(pdata);
/*
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index d838b44..a4e1b8d 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -158,6 +158,7 @@
#define XGBE_MAX_DMA_CHANNELS 16
#define XGBE_MAX_QUEUES 16
+#define XGBE_PRIORITY_QUEUES 8
#define XGBE_DMA_STOP_TIMEOUT 5
/* DMA cache settings - Outer sharable, write-back, write-allocate */
@@ -177,6 +178,13 @@
#define XGMAC_MAX_STD_PACKET 1518
#define XGMAC_JUMBO_PACKET_MTU 9000
#define XGMAC_MAX_JUMBO_PACKET 9018
+#define XGMAC_ETH_PREAMBLE (12 + 8) /* Inter-frame gap + preamble */
+
+#define XGMAC_PFC_DATA_LEN 46
+#define XGMAC_PFC_DELAYS 14000
+
+#define XGMAC_PRIO_QUEUES(_cnt) \
+ min_t(unsigned int, IEEE_8021QAZ_MAX_TCS, (_cnt))
/* Common property names */
#define XGBE_MAC_ADDR_PROPERTY "mac-address"
@@ -210,6 +218,12 @@
#define XGMAC_FIFO_RX_MAX 81920
#define XGMAC_FIFO_TX_MAX 81920
+#define XGMAC_FIFO_MIN_ALLOC 2048
+#define XGMAC_FIFO_UNIT 256
+#define XGMAC_FIFO_ALIGN(_x) \
+ (((_x) + XGMAC_FIFO_UNIT - 1) & ~(XGMAC_FIFO_UNIT - 1))
+#define XGMAC_FIFO_FC_OFF 2048
+#define XGMAC_FIFO_FC_MIN 4096
#define XGBE_TC_MIN_QUANTUM 10
@@ -234,6 +248,14 @@
/* Flow control queue count */
#define XGMAC_MAX_FLOW_CONTROL_QUEUES 8
+/* Flow control threshold units */
+#define XGMAC_FLOW_CONTROL_UNIT 512
+#define XGMAC_FLOW_CONTROL_ALIGN(_x) \
+ (((_x) + XGMAC_FLOW_CONTROL_UNIT - 1) & ~(XGMAC_FLOW_CONTROL_UNIT - 1))
+#define XGMAC_FLOW_CONTROL_VALUE(_x) \
+ (((_x) < 1024) ? 0 : ((_x) / XGMAC_FLOW_CONTROL_UNIT) - 2)
+#define XGMAC_FLOW_CONTROL_MAX 33280
+
/* Maximum MAC address hash table size (256 bits = 8 bytes) */
#define XGBE_MAC_HASH_TABLE_SIZE 8
@@ -843,6 +865,8 @@ struct xgbe_prv_data {
unsigned int pause_autoneg;
unsigned int tx_pause;
unsigned int rx_pause;
+ unsigned int rx_rfa[XGBE_MAX_QUEUES];
+ unsigned int rx_rfd[XGBE_MAX_QUEUES];
/* Receive Side Scaling settings */
u8 rss_key[XGBE_RSS_HASH_KEY_SIZE];
@@ -882,6 +906,8 @@ struct xgbe_prv_data {
struct ieee_pfc *pfc;
unsigned int q2tc_map[XGBE_MAX_QUEUES];
unsigned int prio2q_map[IEEE_8021QAZ_MAX_TCS];
+ unsigned int pfcq[XGBE_MAX_QUEUES];
+ unsigned int pfc_rfa;
u8 num_tcs;
/* Hardware features of the device */
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 04/10] amd-xgbe: Prepare for working with more than one type of phy
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (2 preceding siblings ...)
2016-11-03 18:18 ` [PATCH net-next v1 03/10] amd-xgbe: Perform priority-based hardware " Tom Lendacky
@ 2016-11-03 18:18 ` Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 05/10] amd-xgbe: Prepare for introduction of clause 37 autoneg Tom Lendacky
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:18 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Prepare the code to be able to work with more than one type of phy by
adding additional callable functions into the phy interface and removing
phy specific settings/functions from non-phy related files.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/Makefile | 3
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 58 +-
drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 6
drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c | 19 -
drivers/net/ethernet/amd/xgbe/xgbe-main.c | 214 ++-----
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 549 +++++------------
drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c | 821 ++++++++++++++++++++++++++
drivers/net/ethernet/amd/xgbe/xgbe.h | 130 ++--
8 files changed, 1140 insertions(+), 660 deletions(-)
create mode 100644 drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c
diff --git a/drivers/net/ethernet/amd/xgbe/Makefile b/drivers/net/ethernet/amd/xgbe/Makefile
index 171a7e6..60b4ae2 100644
--- a/drivers/net/ethernet/amd/xgbe/Makefile
+++ b/drivers/net/ethernet/amd/xgbe/Makefile
@@ -2,7 +2,8 @@ obj-$(CONFIG_AMD_XGBE) += amd-xgbe.o
amd-xgbe-objs := xgbe-main.o xgbe-drv.o xgbe-dev.o \
xgbe-desc.o xgbe-ethtool.o xgbe-mdio.o \
- xgbe-ptp.o
+ xgbe-ptp.o \
+ xgbe-phy-v1.o
amd-xgbe-$(CONFIG_AMD_XGBE_DCB) += xgbe-dcb.o
amd-xgbe-$(CONFIG_DEBUG_FS) += xgbe-debugfs.o
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index f8fffea..75c3df1 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -717,32 +717,26 @@ static void xgbe_enable_mac_interrupts(struct xgbe_prv_data *pdata)
XGMAC_IOWRITE_BITS(pdata, MMC_TIER, ALL_INTERRUPTS, 0xffffffff);
}
-static int xgbe_set_gmii_speed(struct xgbe_prv_data *pdata)
+static int xgbe_set_speed(struct xgbe_prv_data *pdata, int speed)
{
- if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0x3)
- return 0;
-
- XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x3);
-
- return 0;
-}
-
-static int xgbe_set_gmii_2500_speed(struct xgbe_prv_data *pdata)
-{
- if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0x2)
- return 0;
+ unsigned int ss;
- XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x2);
-
- return 0;
-}
-
-static int xgbe_set_xgmii_speed(struct xgbe_prv_data *pdata)
-{
- if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0)
- return 0;
+ switch (speed) {
+ case SPEED_1000:
+ ss = 0x03;
+ break;
+ case SPEED_2500:
+ ss = 0x02;
+ break;
+ case SPEED_10000:
+ ss = 0x00;
+ break;
+ default:
+ return -EINVAL;
+ }
- XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0);
+ if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) != ss)
+ XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, ss);
return 0;
}
@@ -2469,19 +2463,7 @@ static void xgbe_config_jumbo_enable(struct xgbe_prv_data *pdata)
static void xgbe_config_mac_speed(struct xgbe_prv_data *pdata)
{
- switch (pdata->phy_speed) {
- case SPEED_10000:
- xgbe_set_xgmii_speed(pdata);
- break;
-
- case SPEED_2500:
- xgbe_set_gmii_2500_speed(pdata);
- break;
-
- case SPEED_1000:
- xgbe_set_gmii_speed(pdata);
- break;
- }
+ xgbe_set_speed(pdata, pdata->phy_speed);
}
static void xgbe_config_checksum_offload(struct xgbe_prv_data *pdata)
@@ -3195,9 +3177,7 @@ void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *hw_if)
hw_if->read_mmd_regs = xgbe_read_mmd_regs;
hw_if->write_mmd_regs = xgbe_write_mmd_regs;
- hw_if->set_gmii_speed = xgbe_set_gmii_speed;
- hw_if->set_gmii_2500_speed = xgbe_set_gmii_2500_speed;
- hw_if->set_xgmii_speed = xgbe_set_xgmii_speed;
+ hw_if->set_speed = xgbe_set_speed;
hw_if->enable_tx = xgbe_enable_tx;
hw_if->disable_tx = xgbe_disable_tx;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index c4e6682..dd166a0 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -778,7 +778,7 @@ static void xgbe_free_rx_data(struct xgbe_prv_data *pdata)
DBGPR("<--xgbe_free_rx_data\n");
}
-static int xgbe_phy_init(struct xgbe_prv_data *pdata)
+static int xgbe_phy_reset(struct xgbe_prv_data *pdata)
{
pdata->phy_link = -1;
pdata->phy_speed = SPEED_UNKNOWN;
@@ -1292,8 +1292,8 @@ static int xgbe_open(struct net_device *netdev)
DBGPR("-->xgbe_open\n");
- /* Initialize the phy */
- ret = xgbe_phy_init(pdata);
+ /* Reset the phy settings */
+ ret = xgbe_phy_reset(pdata);
if (ret)
return ret;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
index 4007b42..46c959b 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
@@ -316,24 +316,7 @@ static int xgbe_set_settings(struct net_device *netdev,
}
if (cmd->autoneg == AUTONEG_DISABLE) {
- switch (speed) {
- case SPEED_10000:
- break;
- case SPEED_2500:
- if (pdata->speed_set != XGBE_SPEEDSET_2500_10000) {
- netdev_err(netdev, "unsupported speed %u\n",
- speed);
- return -EINVAL;
- }
- break;
- case SPEED_1000:
- if (pdata->speed_set != XGBE_SPEEDSET_1000_10000) {
- netdev_err(netdev, "unsupported speed %u\n",
- speed);
- return -EINVAL;
- }
- break;
- default:
+ if (!pdata->phy_if.phy_valid_speed(pdata, speed)) {
netdev_err(netdev, "unsupported speed %u\n", speed);
return -EINVAL;
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index 6997f11..38c5985 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -125,6 +125,7 @@
#include <linux/of_net.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
+#include <linux/of_device.h>
#include <linux/clk.h>
#include <linux/property.h>
#include <linux/acpi.h>
@@ -145,42 +146,6 @@
static const u32 default_msg_level = (NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
NETIF_MSG_IFUP);
-static const u32 xgbe_serdes_blwc[] = {
- XGBE_SPEED_1000_BLWC,
- XGBE_SPEED_2500_BLWC,
- XGBE_SPEED_10000_BLWC,
-};
-
-static const u32 xgbe_serdes_cdr_rate[] = {
- XGBE_SPEED_1000_CDR,
- XGBE_SPEED_2500_CDR,
- XGBE_SPEED_10000_CDR,
-};
-
-static const u32 xgbe_serdes_pq_skew[] = {
- XGBE_SPEED_1000_PQ,
- XGBE_SPEED_2500_PQ,
- XGBE_SPEED_10000_PQ,
-};
-
-static const u32 xgbe_serdes_tx_amp[] = {
- XGBE_SPEED_1000_TXAMP,
- XGBE_SPEED_2500_TXAMP,
- XGBE_SPEED_10000_TXAMP,
-};
-
-static const u32 xgbe_serdes_dfe_tap_cfg[] = {
- XGBE_SPEED_1000_DFE_TAP_CONFIG,
- XGBE_SPEED_2500_DFE_TAP_CONFIG,
- XGBE_SPEED_10000_DFE_TAP_CONFIG,
-};
-
-static const u32 xgbe_serdes_dfe_tap_ena[] = {
- XGBE_SPEED_1000_DFE_TAP_ENABLE,
- XGBE_SPEED_2500_DFE_TAP_ENABLE,
- XGBE_SPEED_10000_DFE_TAP_ENABLE,
-};
-
static void xgbe_default_config(struct xgbe_prv_data *pdata)
{
DBGPR("-->xgbe_default_config\n");
@@ -207,9 +172,22 @@ static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
xgbe_init_function_ptrs_dev(&pdata->hw_if);
xgbe_init_function_ptrs_phy(&pdata->phy_if);
xgbe_init_function_ptrs_desc(&pdata->desc_if);
+
+ pdata->vdata->init_function_ptrs_phy_impl(&pdata->phy_if);
}
#ifdef CONFIG_ACPI
+static const struct acpi_device_id xgbe_acpi_match[];
+
+static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
+{
+ const struct acpi_device_id *id;
+
+ id = acpi_match_device(xgbe_acpi_match, pdata->dev);
+
+ return id ? (struct xgbe_version_data *)id->driver_data : NULL;
+}
+
static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
{
struct device *dev = pdata->dev;
@@ -237,6 +215,11 @@ static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
return 0;
}
#else /* CONFIG_ACPI */
+static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
+{
+ return NULL;
+}
+
static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
{
return -EINVAL;
@@ -244,6 +227,17 @@ static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
#endif /* CONFIG_ACPI */
#ifdef CONFIG_OF
+static const struct of_device_id xgbe_of_match[];
+
+static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
+{
+ const struct of_device_id *id;
+
+ id = of_match_device(xgbe_of_match, pdata->dev);
+
+ return id ? (struct xgbe_version_data *)id->data : NULL;
+}
+
static int xgbe_of_support(struct xgbe_prv_data *pdata)
{
struct device *dev = pdata->dev;
@@ -292,6 +286,11 @@ static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
return phy_pdev;
}
#else /* CONFIG_OF */
+static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
+{
+ return NULL;
+}
+
static int xgbe_of_support(struct xgbe_prv_data *pdata)
{
return -EINVAL;
@@ -333,11 +332,17 @@ static struct platform_device *xgbe_get_phy_pdev(struct xgbe_prv_data *pdata)
return phy_pdev;
}
+static struct xgbe_version_data *xgbe_get_vdata(struct xgbe_prv_data *pdata)
+{
+ return pdata->use_acpi ? xgbe_acpi_vdata(pdata)
+ : xgbe_of_vdata(pdata);
+}
+
static int xgbe_probe(struct platform_device *pdev)
{
struct xgbe_prv_data *pdata;
struct net_device *netdev;
- struct device *dev = &pdev->dev, *phy_dev;
+ struct device *dev = &pdev->dev;
struct platform_device *phy_pdev;
struct resource *res;
const char *phy_mode;
@@ -374,13 +379,17 @@ static int xgbe_probe(struct platform_device *pdev)
/* Check if we should use ACPI or DT */
pdata->use_acpi = dev->of_node ? 0 : 1;
+ /* Get the version data */
+ pdata->vdata = xgbe_get_vdata(pdata);
+
phy_pdev = xgbe_get_phy_pdev(pdata);
if (!phy_pdev) {
dev_err(dev, "unable to obtain phy device\n");
ret = -EINVAL;
goto err_phydev;
}
- phy_dev = &phy_pdev->dev;
+ pdata->phy_pdev = phy_pdev;
+ pdata->phy_dev = &phy_pdev->dev;
if (pdev == phy_pdev) {
/* New style device tree or ACPI:
@@ -492,115 +501,6 @@ static int xgbe_probe(struct platform_device *pdev)
if (device_property_present(dev, XGBE_DMA_IRQS_PROPERTY))
pdata->per_channel_irq = 1;
- /* Retrieve the PHY speedset */
- ret = device_property_read_u32(phy_dev, XGBE_SPEEDSET_PROPERTY,
- &pdata->speed_set);
- if (ret) {
- dev_err(dev, "invalid %s property\n", XGBE_SPEEDSET_PROPERTY);
- goto err_io;
- }
-
- switch (pdata->speed_set) {
- case XGBE_SPEEDSET_1000_10000:
- case XGBE_SPEEDSET_2500_10000:
- break;
- default:
- dev_err(dev, "invalid %s property\n", XGBE_SPEEDSET_PROPERTY);
- ret = -EINVAL;
- goto err_io;
- }
-
- /* Retrieve the PHY configuration properties */
- if (device_property_present(phy_dev, XGBE_BLWC_PROPERTY)) {
- ret = device_property_read_u32_array(phy_dev,
- XGBE_BLWC_PROPERTY,
- pdata->serdes_blwc,
- XGBE_SPEEDS);
- if (ret) {
- dev_err(dev, "invalid %s property\n",
- XGBE_BLWC_PROPERTY);
- goto err_io;
- }
- } else {
- memcpy(pdata->serdes_blwc, xgbe_serdes_blwc,
- sizeof(pdata->serdes_blwc));
- }
-
- if (device_property_present(phy_dev, XGBE_CDR_RATE_PROPERTY)) {
- ret = device_property_read_u32_array(phy_dev,
- XGBE_CDR_RATE_PROPERTY,
- pdata->serdes_cdr_rate,
- XGBE_SPEEDS);
- if (ret) {
- dev_err(dev, "invalid %s property\n",
- XGBE_CDR_RATE_PROPERTY);
- goto err_io;
- }
- } else {
- memcpy(pdata->serdes_cdr_rate, xgbe_serdes_cdr_rate,
- sizeof(pdata->serdes_cdr_rate));
- }
-
- if (device_property_present(phy_dev, XGBE_PQ_SKEW_PROPERTY)) {
- ret = device_property_read_u32_array(phy_dev,
- XGBE_PQ_SKEW_PROPERTY,
- pdata->serdes_pq_skew,
- XGBE_SPEEDS);
- if (ret) {
- dev_err(dev, "invalid %s property\n",
- XGBE_PQ_SKEW_PROPERTY);
- goto err_io;
- }
- } else {
- memcpy(pdata->serdes_pq_skew, xgbe_serdes_pq_skew,
- sizeof(pdata->serdes_pq_skew));
- }
-
- if (device_property_present(phy_dev, XGBE_TX_AMP_PROPERTY)) {
- ret = device_property_read_u32_array(phy_dev,
- XGBE_TX_AMP_PROPERTY,
- pdata->serdes_tx_amp,
- XGBE_SPEEDS);
- if (ret) {
- dev_err(dev, "invalid %s property\n",
- XGBE_TX_AMP_PROPERTY);
- goto err_io;
- }
- } else {
- memcpy(pdata->serdes_tx_amp, xgbe_serdes_tx_amp,
- sizeof(pdata->serdes_tx_amp));
- }
-
- if (device_property_present(phy_dev, XGBE_DFE_CFG_PROPERTY)) {
- ret = device_property_read_u32_array(phy_dev,
- XGBE_DFE_CFG_PROPERTY,
- pdata->serdes_dfe_tap_cfg,
- XGBE_SPEEDS);
- if (ret) {
- dev_err(dev, "invalid %s property\n",
- XGBE_DFE_CFG_PROPERTY);
- goto err_io;
- }
- } else {
- memcpy(pdata->serdes_dfe_tap_cfg, xgbe_serdes_dfe_tap_cfg,
- sizeof(pdata->serdes_dfe_tap_cfg));
- }
-
- if (device_property_present(phy_dev, XGBE_DFE_ENA_PROPERTY)) {
- ret = device_property_read_u32_array(phy_dev,
- XGBE_DFE_ENA_PROPERTY,
- pdata->serdes_dfe_tap_ena,
- XGBE_SPEEDS);
- if (ret) {
- dev_err(dev, "invalid %s property\n",
- XGBE_DFE_ENA_PROPERTY);
- goto err_io;
- }
- } else {
- memcpy(pdata->serdes_dfe_tap_ena, xgbe_serdes_dfe_tap_ena,
- sizeof(pdata->serdes_dfe_tap_ena));
- }
-
/* Obtain device settings unique to ACPI/OF */
if (pdata->use_acpi)
ret = xgbe_acpi_support(pdata);
@@ -705,7 +605,9 @@ static int xgbe_probe(struct platform_device *pdev)
XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
/* Call MDIO/PHY initialization routine */
- pdata->phy_if.phy_init(pdata);
+ ret = pdata->phy_if.phy_init(pdata);
+ if (ret)
+ goto err_io;
/* Set device operations */
netdev->netdev_ops = xgbe_get_netdev_ops();
@@ -780,8 +682,6 @@ static int xgbe_probe(struct platform_device *pdev)
xgbe_debugfs_init(pdata);
- platform_device_put(phy_pdev);
-
netdev_notice(netdev, "net device enabled\n");
DBGPR("<-- xgbe_probe\n");
@@ -817,6 +717,8 @@ static int xgbe_remove(struct platform_device *pdev)
xgbe_ptp_unregister(pdata);
+ pdata->phy_if.phy_exit(pdata);
+
flush_workqueue(pdata->an_workqueue);
destroy_workqueue(pdata->an_workqueue);
@@ -825,6 +727,8 @@ static int xgbe_remove(struct platform_device *pdev)
unregister_netdev(netdev);
+ platform_device_put(pdata->phy_pdev);
+
free_netdev(netdev);
DBGPR("<--xgbe_remove\n");
@@ -879,9 +783,14 @@ static int xgbe_resume(struct device *dev)
}
#endif /* CONFIG_PM */
+static const struct xgbe_version_data xgbe_v1 = {
+ .init_function_ptrs_phy_impl = xgbe_init_function_ptrs_phy_v1,
+};
+
#ifdef CONFIG_ACPI
static const struct acpi_device_id xgbe_acpi_match[] = {
- { "AMDI8001", 0 },
+ { .id = "AMDI8001",
+ .driver_data = (kernel_ulong_t)&xgbe_v1 },
{},
};
@@ -890,7 +799,8 @@ static int xgbe_resume(struct device *dev)
#ifdef CONFIG_OF
static const struct of_device_id xgbe_of_match[] = {
- { .compatible = "amd,xgbe-seattle-v1a", },
+ { .compatible = "amd,xgbe-seattle-v1a",
+ .data = &xgbe_v1 },
{},
};
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index e9b01fc..35c302f 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -145,280 +145,91 @@ static void xgbe_an_disable_kr_training(struct xgbe_prv_data *pdata)
XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
}
-static void xgbe_pcs_power_cycle(struct xgbe_prv_data *pdata)
+static void xgbe_kr_mode(struct xgbe_prv_data *pdata)
{
- unsigned int reg;
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
-
- reg |= MDIO_CTRL1_LPOWER;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
-
- usleep_range(75, 100);
-
- reg &= ~MDIO_CTRL1_LPOWER;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
-}
-
-static void xgbe_serdes_start_ratechange(struct xgbe_prv_data *pdata)
-{
- /* Assert Rx and Tx ratechange */
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, RATECHANGE, 1);
-}
-
-static void xgbe_serdes_complete_ratechange(struct xgbe_prv_data *pdata)
-{
- unsigned int wait;
- u16 status;
-
- /* Release Rx and Tx ratechange */
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, RATECHANGE, 0);
-
- /* Wait for Rx and Tx ready */
- wait = XGBE_RATECHANGE_COUNT;
- while (wait--) {
- usleep_range(50, 75);
-
- status = XSIR0_IOREAD(pdata, SIR0_STATUS);
- if (XSIR_GET_BITS(status, SIR0_STATUS, RX_READY) &&
- XSIR_GET_BITS(status, SIR0_STATUS, TX_READY))
- goto rx_reset;
- }
-
- netif_dbg(pdata, link, pdata->netdev, "SerDes rx/tx not ready (%#hx)\n",
- status);
-
-rx_reset:
- /* Perform Rx reset for the DFE changes */
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG6, RESETB_RXD, 0);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG6, RESETB_RXD, 1);
-}
-
-static void xgbe_xgmii_mode(struct xgbe_prv_data *pdata)
-{
- unsigned int reg;
-
/* Enable KR training */
xgbe_an_enable_kr_training(pdata);
/* Set MAC to 10G speed */
- pdata->hw_if.set_xgmii_speed(pdata);
-
- /* Set PCS to KR/10G speed */
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
- reg &= ~MDIO_PCS_CTRL2_TYPE;
- reg |= MDIO_PCS_CTRL2_10GBR;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
- reg &= ~MDIO_CTRL1_SPEEDSEL;
- reg |= MDIO_CTRL1_SPEED10G;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
-
- xgbe_pcs_power_cycle(pdata);
-
- /* Set SerDes to 10G speed */
- xgbe_serdes_start_ratechange(pdata);
-
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_10000_RATE);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_10000_WORD);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_10000_PLL);
-
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
- pdata->serdes_cdr_rate[XGBE_SPEED_10000]);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
- pdata->serdes_tx_amp[XGBE_SPEED_10000]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
- pdata->serdes_blwc[XGBE_SPEED_10000]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
- pdata->serdes_pq_skew[XGBE_SPEED_10000]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
- pdata->serdes_dfe_tap_cfg[XGBE_SPEED_10000]);
- XRXTX_IOWRITE(pdata, RXTX_REG22,
- pdata->serdes_dfe_tap_ena[XGBE_SPEED_10000]);
-
- xgbe_serdes_complete_ratechange(pdata);
-
- netif_dbg(pdata, link, pdata->netdev, "10GbE KR mode set\n");
+ pdata->hw_if.set_speed(pdata, SPEED_10000);
+
+ /* Call PHY implementation support to complete rate change */
+ pdata->phy_if.phy_impl.set_mode(pdata, XGBE_MODE_KR);
}
-static void xgbe_gmii_2500_mode(struct xgbe_prv_data *pdata)
+static void xgbe_kx_2500_mode(struct xgbe_prv_data *pdata)
{
- unsigned int reg;
-
/* Disable KR training */
xgbe_an_disable_kr_training(pdata);
/* Set MAC to 2.5G speed */
- pdata->hw_if.set_gmii_2500_speed(pdata);
-
- /* Set PCS to KX/1G speed */
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
- reg &= ~MDIO_PCS_CTRL2_TYPE;
- reg |= MDIO_PCS_CTRL2_10GBX;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
- reg &= ~MDIO_CTRL1_SPEEDSEL;
- reg |= MDIO_CTRL1_SPEED1G;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
-
- xgbe_pcs_power_cycle(pdata);
-
- /* Set SerDes to 2.5G speed */
- xgbe_serdes_start_ratechange(pdata);
-
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_2500_RATE);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_2500_WORD);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_2500_PLL);
-
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
- pdata->serdes_cdr_rate[XGBE_SPEED_2500]);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
- pdata->serdes_tx_amp[XGBE_SPEED_2500]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
- pdata->serdes_blwc[XGBE_SPEED_2500]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
- pdata->serdes_pq_skew[XGBE_SPEED_2500]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
- pdata->serdes_dfe_tap_cfg[XGBE_SPEED_2500]);
- XRXTX_IOWRITE(pdata, RXTX_REG22,
- pdata->serdes_dfe_tap_ena[XGBE_SPEED_2500]);
-
- xgbe_serdes_complete_ratechange(pdata);
-
- netif_dbg(pdata, link, pdata->netdev, "2.5GbE KX mode set\n");
+ pdata->hw_if.set_speed(pdata, SPEED_2500);
+
+ /* Call PHY implementation support to complete rate change */
+ pdata->phy_if.phy_impl.set_mode(pdata, XGBE_MODE_KX_2500);
}
-static void xgbe_gmii_mode(struct xgbe_prv_data *pdata)
+static void xgbe_kx_1000_mode(struct xgbe_prv_data *pdata)
{
- unsigned int reg;
-
/* Disable KR training */
xgbe_an_disable_kr_training(pdata);
/* Set MAC to 1G speed */
- pdata->hw_if.set_gmii_speed(pdata);
-
- /* Set PCS to KX/1G speed */
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
- reg &= ~MDIO_PCS_CTRL2_TYPE;
- reg |= MDIO_PCS_CTRL2_10GBX;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
- reg &= ~MDIO_CTRL1_SPEEDSEL;
- reg |= MDIO_CTRL1_SPEED1G;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
-
- xgbe_pcs_power_cycle(pdata);
-
- /* Set SerDes to 1G speed */
- xgbe_serdes_start_ratechange(pdata);
-
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_1000_RATE);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_1000_WORD);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_1000_PLL);
-
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
- pdata->serdes_cdr_rate[XGBE_SPEED_1000]);
- XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
- pdata->serdes_tx_amp[XGBE_SPEED_1000]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
- pdata->serdes_blwc[XGBE_SPEED_1000]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
- pdata->serdes_pq_skew[XGBE_SPEED_1000]);
- XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
- pdata->serdes_dfe_tap_cfg[XGBE_SPEED_1000]);
- XRXTX_IOWRITE(pdata, RXTX_REG22,
- pdata->serdes_dfe_tap_ena[XGBE_SPEED_1000]);
-
- xgbe_serdes_complete_ratechange(pdata);
-
- netif_dbg(pdata, link, pdata->netdev, "1GbE KX mode set\n");
+ pdata->hw_if.set_speed(pdata, SPEED_1000);
+
+ /* Call PHY implementation support to complete rate change */
+ pdata->phy_if.phy_impl.set_mode(pdata, XGBE_MODE_KX_1000);
}
-static void xgbe_cur_mode(struct xgbe_prv_data *pdata,
- enum xgbe_mode *mode)
+static enum xgbe_mode xgbe_cur_mode(struct xgbe_prv_data *pdata)
{
- unsigned int reg;
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
- if ((reg & MDIO_PCS_CTRL2_TYPE) == MDIO_PCS_CTRL2_10GBR)
- *mode = XGBE_MODE_KR;
- else
- *mode = XGBE_MODE_KX;
+ return pdata->phy_if.phy_impl.cur_mode(pdata);
}
static bool xgbe_in_kr_mode(struct xgbe_prv_data *pdata)
{
- enum xgbe_mode mode;
-
- xgbe_cur_mode(pdata, &mode);
-
- return (mode == XGBE_MODE_KR);
+ return (xgbe_cur_mode(pdata) == XGBE_MODE_KR);
}
-static void xgbe_switch_mode(struct xgbe_prv_data *pdata)
+static void xgbe_change_mode(struct xgbe_prv_data *pdata,
+ enum xgbe_mode mode)
{
- /* If we are in KR switch to KX, and vice-versa */
- if (xgbe_in_kr_mode(pdata)) {
- if (pdata->speed_set == XGBE_SPEEDSET_1000_10000)
- xgbe_gmii_mode(pdata);
- else
- xgbe_gmii_2500_mode(pdata);
- } else {
- xgbe_xgmii_mode(pdata);
+ switch (mode) {
+ case XGBE_MODE_KX_1000:
+ xgbe_kx_1000_mode(pdata);
+ break;
+ case XGBE_MODE_KX_2500:
+ xgbe_kx_2500_mode(pdata);
+ break;
+ case XGBE_MODE_KR:
+ xgbe_kr_mode(pdata);
+ break;
+ case XGBE_MODE_UNKNOWN:
+ break;
+ default:
+ netif_dbg(pdata, link, pdata->netdev,
+ "invalid operation mode requested (%u)\n", mode);
}
}
-static void xgbe_set_mode(struct xgbe_prv_data *pdata,
- enum xgbe_mode mode)
-{
- enum xgbe_mode cur_mode;
-
- xgbe_cur_mode(pdata, &cur_mode);
- if (mode != cur_mode)
- xgbe_switch_mode(pdata);
-}
-
-static bool xgbe_use_xgmii_mode(struct xgbe_prv_data *pdata)
+static void xgbe_switch_mode(struct xgbe_prv_data *pdata)
{
- if (pdata->phy.autoneg == AUTONEG_ENABLE) {
- if (pdata->phy.advertising & ADVERTISED_10000baseKR_Full)
- return true;
- } else {
- if (pdata->phy.speed == SPEED_10000)
- return true;
- }
-
- return false;
+ xgbe_change_mode(pdata, pdata->phy_if.phy_impl.switch_mode(pdata));
}
-static bool xgbe_use_gmii_2500_mode(struct xgbe_prv_data *pdata)
+static void xgbe_set_mode(struct xgbe_prv_data *pdata,
+ enum xgbe_mode mode)
{
- if (pdata->phy.autoneg == AUTONEG_ENABLE) {
- if (pdata->phy.advertising & ADVERTISED_2500baseX_Full)
- return true;
- } else {
- if (pdata->phy.speed == SPEED_2500)
- return true;
- }
+ if (mode == xgbe_cur_mode(pdata))
+ return;
- return false;
+ xgbe_change_mode(pdata, mode);
}
-static bool xgbe_use_gmii_mode(struct xgbe_prv_data *pdata)
+static bool xgbe_use_mode(struct xgbe_prv_data *pdata,
+ enum xgbe_mode mode)
{
- if (pdata->phy.autoneg == AUTONEG_ENABLE) {
- if (pdata->phy.advertising & ADVERTISED_1000baseKX_Full)
- return true;
- } else {
- if (pdata->phy.speed == SPEED_1000)
- return true;
- }
-
- return false;
+ return pdata->phy_if.phy_impl.use_mode(pdata, mode);
}
static void xgbe_set_an(struct xgbe_prv_data *pdata, bool enable, bool restart)
@@ -476,13 +287,15 @@ static enum xgbe_an xgbe_an_tx_training(struct xgbe_prv_data *pdata,
/* Start KR training */
reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
if (reg & XGBE_KR_TRAINING_ENABLE) {
- XSIR0_IOWRITE_BITS(pdata, SIR0_KR_RT_1, RESET, 1);
+ if (pdata->phy_if.phy_impl.kr_training_pre)
+ pdata->phy_if.phy_impl.kr_training_pre(pdata);
reg |= XGBE_KR_TRAINING_START;
XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL,
reg);
- XSIR0_IOWRITE_BITS(pdata, SIR0_KR_RT_1, RESET, 0);
+ if (pdata->phy_if.phy_impl.kr_training_post)
+ pdata->phy_if.phy_impl.kr_training_post(pdata);
netif_dbg(pdata, link, pdata->netdev,
"KR training initiated\n");
@@ -571,7 +384,7 @@ static enum xgbe_an xgbe_an_page_received(struct xgbe_prv_data *pdata)
}
state = xgbe_in_kr_mode(pdata) ? &pdata->kr_state
- : &pdata->kx_state;
+ : &pdata->kx_state;
switch (*state) {
case XGBE_RX_BPA:
@@ -907,24 +720,28 @@ static void xgbe_phy_adjust_link(struct xgbe_prv_data *pdata)
xgbe_phy_print_status(pdata);
}
+static bool xgbe_phy_valid_speed(struct xgbe_prv_data *pdata, int speed)
+{
+ return pdata->phy_if.phy_impl.valid_speed(pdata, speed);
+}
+
static int xgbe_phy_config_fixed(struct xgbe_prv_data *pdata)
{
+ enum xgbe_mode mode;
+
netif_dbg(pdata, link, pdata->netdev, "fixed PHY configuration\n");
/* Disable auto-negotiation */
xgbe_disable_an(pdata);
- /* Validate/Set specified speed */
- switch (pdata->phy.speed) {
- case SPEED_10000:
- xgbe_set_mode(pdata, XGBE_MODE_KR);
- break;
-
- case SPEED_2500:
- case SPEED_1000:
- xgbe_set_mode(pdata, XGBE_MODE_KX);
+ /* Set specified mode for specified speed */
+ mode = pdata->phy_if.phy_impl.get_mode(pdata, pdata->phy.speed);
+ switch (mode) {
+ case XGBE_MODE_KX_1000:
+ case XGBE_MODE_KX_2500:
+ case XGBE_MODE_KR:
break;
-
+ case XGBE_MODE_UNKNOWN:
default:
return -EINVAL;
}
@@ -933,6 +750,8 @@ static int xgbe_phy_config_fixed(struct xgbe_prv_data *pdata)
if (pdata->phy.duplex != DUPLEX_FULL)
return -EINVAL;
+ xgbe_set_mode(pdata, mode);
+
return 0;
}
@@ -950,11 +769,12 @@ static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
disable_irq(pdata->an_irq);
/* Start auto-negotiation in a supported mode */
- if (pdata->phy.advertising & ADVERTISED_10000baseKR_Full) {
+ if (xgbe_use_mode(pdata, XGBE_MODE_KR)) {
xgbe_set_mode(pdata, XGBE_MODE_KR);
- } else if ((pdata->phy.advertising & ADVERTISED_1000baseKX_Full) ||
- (pdata->phy.advertising & ADVERTISED_2500baseX_Full)) {
- xgbe_set_mode(pdata, XGBE_MODE_KX);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_2500)) {
+ xgbe_set_mode(pdata, XGBE_MODE_KX_2500);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_1000)) {
+ xgbe_set_mode(pdata, XGBE_MODE_KX_1000);
} else {
enable_irq(pdata->an_irq);
return -EINVAL;
@@ -1016,108 +836,45 @@ static void xgbe_check_link_timeout(struct xgbe_prv_data *pdata)
}
}
-static void xgbe_phy_status_force(struct xgbe_prv_data *pdata)
+static enum xgbe_mode xgbe_phy_status_aneg(struct xgbe_prv_data *pdata)
{
- if (xgbe_in_kr_mode(pdata)) {
- pdata->phy.speed = SPEED_10000;
- } else {
- switch (pdata->speed_set) {
- case XGBE_SPEEDSET_1000_10000:
- pdata->phy.speed = SPEED_1000;
- break;
-
- case XGBE_SPEEDSET_2500_10000:
- pdata->phy.speed = SPEED_2500;
- break;
- }
- }
- pdata->phy.duplex = DUPLEX_FULL;
+ return pdata->phy_if.phy_impl.an_outcome(pdata);
}
-static void xgbe_phy_status_aneg(struct xgbe_prv_data *pdata)
+static void xgbe_phy_status_result(struct xgbe_prv_data *pdata)
{
- unsigned int ad_reg, lp_reg;
+ enum xgbe_mode mode;
pdata->phy.lp_advertising = 0;
if ((pdata->phy.autoneg != AUTONEG_ENABLE) || pdata->parallel_detect)
- return xgbe_phy_status_force(pdata);
-
- pdata->phy.lp_advertising |= ADVERTISED_Autoneg;
- pdata->phy.lp_advertising |= ADVERTISED_Backplane;
-
- /* Compare Advertisement and Link Partner register 1 */
- ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE);
- lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA);
- if (lp_reg & 0x400)
- pdata->phy.lp_advertising |= ADVERTISED_Pause;
- if (lp_reg & 0x800)
- pdata->phy.lp_advertising |= ADVERTISED_Asym_Pause;
-
- if (pdata->phy.pause_autoneg) {
- /* Set flow control based on auto-negotiation result */
- pdata->phy.tx_pause = 0;
- pdata->phy.rx_pause = 0;
-
- if (ad_reg & lp_reg & 0x400) {
- pdata->phy.tx_pause = 1;
- pdata->phy.rx_pause = 1;
- } else if (ad_reg & lp_reg & 0x800) {
- if (ad_reg & 0x400)
- pdata->phy.rx_pause = 1;
- else if (lp_reg & 0x400)
- pdata->phy.tx_pause = 1;
- }
- }
-
- /* Compare Advertisement and Link Partner register 2 */
- ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 1);
- lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 1);
- if (lp_reg & 0x80)
- pdata->phy.lp_advertising |= ADVERTISED_10000baseKR_Full;
- if (lp_reg & 0x20) {
- switch (pdata->speed_set) {
- case XGBE_SPEEDSET_1000_10000:
- pdata->phy.lp_advertising |= ADVERTISED_1000baseKX_Full;
- break;
- case XGBE_SPEEDSET_2500_10000:
- pdata->phy.lp_advertising |= ADVERTISED_2500baseX_Full;
- break;
- }
- }
+ mode = xgbe_cur_mode(pdata);
+ else
+ mode = xgbe_phy_status_aneg(pdata);
- ad_reg &= lp_reg;
- if (ad_reg & 0x80) {
+ switch (mode) {
+ case XGBE_MODE_KX_1000:
+ pdata->phy.speed = SPEED_1000;
+ break;
+ case XGBE_MODE_KX_2500:
+ pdata->phy.speed = SPEED_2500;
+ break;
+ case XGBE_MODE_KR:
pdata->phy.speed = SPEED_10000;
- xgbe_set_mode(pdata, XGBE_MODE_KR);
- } else if (ad_reg & 0x20) {
- switch (pdata->speed_set) {
- case XGBE_SPEEDSET_1000_10000:
- pdata->phy.speed = SPEED_1000;
- break;
-
- case XGBE_SPEEDSET_2500_10000:
- pdata->phy.speed = SPEED_2500;
- break;
- }
-
- xgbe_set_mode(pdata, XGBE_MODE_KX);
- } else {
+ break;
+ case XGBE_MODE_UNKNOWN:
+ default:
pdata->phy.speed = SPEED_UNKNOWN;
}
- /* Compare Advertisement and Link Partner register 3 */
- ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2);
- lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 2);
- if (lp_reg & 0xc000)
- pdata->phy.lp_advertising |= ADVERTISED_10000baseR_FEC;
-
pdata->phy.duplex = DUPLEX_FULL;
+
+ xgbe_set_mode(pdata, mode);
}
static void xgbe_phy_status(struct xgbe_prv_data *pdata)
{
- unsigned int reg, link_aneg;
+ unsigned int link_aneg;
if (test_bit(XGBE_LINK_ERR, &pdata->dev_state)) {
netif_carrier_off(pdata->netdev);
@@ -1128,20 +885,14 @@ static void xgbe_phy_status(struct xgbe_prv_data *pdata)
link_aneg = (pdata->phy.autoneg == AUTONEG_ENABLE);
- /* Get the link status. Link status is latched low, so read
- * once to clear and then read again to get current state
- */
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1);
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1);
- pdata->phy.link = (reg & MDIO_STAT1_LSTATUS) ? 1 : 0;
-
+ pdata->phy.link = pdata->phy_if.phy_impl.link_status(pdata);
if (pdata->phy.link) {
if (link_aneg && !xgbe_phy_aneg_done(pdata)) {
xgbe_check_link_timeout(pdata);
return;
}
- xgbe_phy_status_aneg(pdata);
+ xgbe_phy_status_result(pdata);
if (test_bit(XGBE_LINK_INIT, &pdata->dev_state))
clear_bit(XGBE_LINK_INIT, &pdata->dev_state);
@@ -1155,7 +906,7 @@ static void xgbe_phy_status(struct xgbe_prv_data *pdata)
return;
}
- xgbe_phy_status_aneg(pdata);
+ xgbe_phy_status_result(pdata);
netif_carrier_off(pdata->netdev);
}
@@ -1168,6 +919,12 @@ static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
{
netif_dbg(pdata, link, pdata->netdev, "stopping PHY\n");
+ if (!pdata->phy_started)
+ return;
+
+ /* Indicate the PHY is down */
+ pdata->phy_started = 0;
+
/* Disable auto-negotiation */
xgbe_disable_an(pdata);
@@ -1176,6 +933,8 @@ static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
devm_free_irq(pdata->dev, pdata->an_irq, pdata);
+ pdata->phy_if.phy_impl.stop(pdata);
+
pdata->phy.link = 0;
netif_carrier_off(pdata->netdev);
@@ -1189,28 +948,35 @@ static int xgbe_phy_start(struct xgbe_prv_data *pdata)
netif_dbg(pdata, link, pdata->netdev, "starting PHY\n");
+ ret = pdata->phy_if.phy_impl.start(pdata);
+ if (ret)
+ return ret;
+
ret = devm_request_irq(pdata->dev, pdata->an_irq,
xgbe_an_isr, 0, pdata->an_name,
pdata);
if (ret) {
netdev_err(netdev, "phy irq request failed\n");
- return ret;
+ goto err_stop;
}
/* Set initial mode - call the mode setting routines
* directly to insure we are properly configured
*/
- if (xgbe_use_xgmii_mode(pdata)) {
- xgbe_xgmii_mode(pdata);
- } else if (xgbe_use_gmii_mode(pdata)) {
- xgbe_gmii_mode(pdata);
- } else if (xgbe_use_gmii_2500_mode(pdata)) {
- xgbe_gmii_2500_mode(pdata);
+ if (xgbe_use_mode(pdata, XGBE_MODE_KR)) {
+ xgbe_kr_mode(pdata);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_2500)) {
+ xgbe_kx_2500_mode(pdata);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_1000)) {
+ xgbe_kx_1000_mode(pdata);
} else {
ret = -EINVAL;
goto err_irq;
}
+ /* Indicate the PHY is up and running */
+ pdata->phy_started = 1;
+
/* Set up advertisement registers based on current settings */
xgbe_an_init(pdata);
@@ -1222,25 +988,19 @@ static int xgbe_phy_start(struct xgbe_prv_data *pdata)
err_irq:
devm_free_irq(pdata->dev, pdata->an_irq, pdata);
+err_stop:
+ pdata->phy_if.phy_impl.stop(pdata);
+
return ret;
}
static int xgbe_phy_reset(struct xgbe_prv_data *pdata)
{
- unsigned int count, reg;
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
- reg |= MDIO_CTRL1_RESET;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
-
- count = 50;
- do {
- msleep(20);
- reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
- } while ((reg & MDIO_CTRL1_RESET) && --count);
+ int ret;
- if (reg & MDIO_CTRL1_RESET)
- return -ETIMEDOUT;
+ ret = pdata->phy_if.phy_impl.reset(pdata);
+ if (ret)
+ return ret;
/* Disable auto-negotiation for now */
xgbe_disable_an(pdata);
@@ -1290,41 +1050,57 @@ static void xgbe_dump_phy_registers(struct xgbe_prv_data *pdata)
dev_dbg(dev, "\n*************************************************\n");
}
-static void xgbe_phy_init(struct xgbe_prv_data *pdata)
+static int xgbe_phy_best_advertised_speed(struct xgbe_prv_data *pdata)
+{
+ if (pdata->phy.advertising & ADVERTISED_10000baseKR_Full)
+ return SPEED_10000;
+ else if (pdata->phy.advertising & ADVERTISED_2500baseX_Full)
+ return SPEED_2500;
+ else if (pdata->phy.advertising & ADVERTISED_1000baseKX_Full)
+ return SPEED_1000;
+
+ return SPEED_UNKNOWN;
+}
+
+static void xgbe_phy_exit(struct xgbe_prv_data *pdata)
{
+ xgbe_phy_stop(pdata);
+
+ pdata->phy_if.phy_impl.exit(pdata);
+}
+
+static int xgbe_phy_init(struct xgbe_prv_data *pdata)
+{
+ int ret;
+
mutex_init(&pdata->an_mutex);
INIT_WORK(&pdata->an_irq_work, xgbe_an_irq_work);
INIT_WORK(&pdata->an_work, xgbe_an_state_machine);
pdata->mdio_mmd = MDIO_MMD_PCS;
- /* Initialize supported features */
- pdata->phy.supported = SUPPORTED_Autoneg;
- pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
- pdata->phy.supported |= SUPPORTED_Backplane;
- pdata->phy.supported |= SUPPORTED_10000baseKR_Full;
- switch (pdata->speed_set) {
- case XGBE_SPEEDSET_1000_10000:
- pdata->phy.supported |= SUPPORTED_1000baseKX_Full;
- break;
- case XGBE_SPEEDSET_2500_10000:
- pdata->phy.supported |= SUPPORTED_2500baseX_Full;
- break;
- }
-
+ /* Check for FEC support */
pdata->fec_ability = XMDIO_READ(pdata, MDIO_MMD_PMAPMD,
MDIO_PMA_10GBR_FECABLE);
pdata->fec_ability &= (MDIO_PMA_10GBR_FECABLE_ABLE |
MDIO_PMA_10GBR_FECABLE_ERRABLE);
- if (pdata->fec_ability & MDIO_PMA_10GBR_FECABLE_ABLE)
- pdata->phy.supported |= SUPPORTED_10000baseR_FEC;
+ /* Setup the phy (including supported features) */
+ ret = pdata->phy_if.phy_impl.init(pdata);
+ if (ret)
+ return ret;
pdata->phy.advertising = pdata->phy.supported;
pdata->phy.address = 0;
- pdata->phy.autoneg = AUTONEG_ENABLE;
- pdata->phy.speed = SPEED_UNKNOWN;
- pdata->phy.duplex = DUPLEX_UNKNOWN;
+ if (pdata->phy.advertising & ADVERTISED_Autoneg) {
+ pdata->phy.autoneg = AUTONEG_ENABLE;
+ pdata->phy.speed = SPEED_UNKNOWN;
+ pdata->phy.duplex = DUPLEX_UNKNOWN;
+ } else {
+ pdata->phy.autoneg = AUTONEG_DISABLE;
+ pdata->phy.speed = xgbe_phy_best_advertised_speed(pdata);
+ pdata->phy.duplex = DUPLEX_FULL;
+ }
pdata->phy.link = 0;
@@ -1346,11 +1122,14 @@ static void xgbe_phy_init(struct xgbe_prv_data *pdata)
if (netif_msg_drv(pdata))
xgbe_dump_phy_registers(pdata);
+
+ return 0;
}
void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *phy_if)
{
phy_if->phy_init = xgbe_phy_init;
+ phy_if->phy_exit = xgbe_phy_exit;
phy_if->phy_reset = xgbe_phy_reset;
phy_if->phy_start = xgbe_phy_start;
@@ -1358,4 +1137,6 @@ void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *phy_if)
phy_if->phy_status = xgbe_phy_status;
phy_if->phy_config_aneg = xgbe_phy_config_aneg;
+
+ phy_if->phy_valid_speed = xgbe_phy_valid_speed;
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c
new file mode 100644
index 0000000..20ccb99
--- /dev/null
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c
@@ -0,0 +1,821 @@
+/*
+ * AMD 10Gb Ethernet driver
+ *
+ * This file is available to you under your choice of the following two
+ * licenses:
+ *
+ * License 1: GPLv2
+ *
+ * Copyright (c) 2016 Advanced Micro Devices, Inc.
+ *
+ * This file is free software; you may copy, redistribute and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ * The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ * (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ * Inc. unless otherwise expressly agreed to in writing between Synopsys
+ * and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product
+ * under any End User Software License Agreement or Agreement for Licensed
+ * Product with Synopsys or any supplement thereto. Permission is hereby
+ * granted, free of charge, to any person obtaining a copy of this software
+ * annotated with this license and the Software, to deal in the Software
+ * without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *
+ * License 2: Modified BSD
+ *
+ * Copyright (c) 2016 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Advanced Micro Devices, Inc. nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ * The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ * (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ * Inc. unless otherwise expressly agreed to in writing between Synopsys
+ * and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product
+ * under any End User Software License Agreement or Agreement for Licensed
+ * Product with Synopsys or any supplement thereto. Permission is hereby
+ * granted, free of charge, to any person obtaining a copy of this software
+ * annotated with this license and the Software, to deal in the Software
+ * without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+#include <linux/kmod.h>
+#include <linux/device.h>
+#include <linux/property.h>
+#include <linux/mdio.h>
+#include <linux/phy.h>
+
+#include "xgbe.h"
+#include "xgbe-common.h"
+
+#define XGBE_BLWC_PROPERTY "amd,serdes-blwc"
+#define XGBE_CDR_RATE_PROPERTY "amd,serdes-cdr-rate"
+#define XGBE_PQ_SKEW_PROPERTY "amd,serdes-pq-skew"
+#define XGBE_TX_AMP_PROPERTY "amd,serdes-tx-amp"
+#define XGBE_DFE_CFG_PROPERTY "amd,serdes-dfe-tap-config"
+#define XGBE_DFE_ENA_PROPERTY "amd,serdes-dfe-tap-enable"
+
+/* Default SerDes settings */
+#define XGBE_SPEED_1000_BLWC 1
+#define XGBE_SPEED_1000_CDR 0x2
+#define XGBE_SPEED_1000_PLL 0x0
+#define XGBE_SPEED_1000_PQ 0xa
+#define XGBE_SPEED_1000_RATE 0x3
+#define XGBE_SPEED_1000_TXAMP 0xf
+#define XGBE_SPEED_1000_WORD 0x1
+#define XGBE_SPEED_1000_DFE_TAP_CONFIG 0x3
+#define XGBE_SPEED_1000_DFE_TAP_ENABLE 0x0
+
+#define XGBE_SPEED_2500_BLWC 1
+#define XGBE_SPEED_2500_CDR 0x2
+#define XGBE_SPEED_2500_PLL 0x0
+#define XGBE_SPEED_2500_PQ 0xa
+#define XGBE_SPEED_2500_RATE 0x1
+#define XGBE_SPEED_2500_TXAMP 0xf
+#define XGBE_SPEED_2500_WORD 0x1
+#define XGBE_SPEED_2500_DFE_TAP_CONFIG 0x3
+#define XGBE_SPEED_2500_DFE_TAP_ENABLE 0x0
+
+#define XGBE_SPEED_10000_BLWC 0
+#define XGBE_SPEED_10000_CDR 0x7
+#define XGBE_SPEED_10000_PLL 0x1
+#define XGBE_SPEED_10000_PQ 0x12
+#define XGBE_SPEED_10000_RATE 0x0
+#define XGBE_SPEED_10000_TXAMP 0xa
+#define XGBE_SPEED_10000_WORD 0x7
+#define XGBE_SPEED_10000_DFE_TAP_CONFIG 0x1
+#define XGBE_SPEED_10000_DFE_TAP_ENABLE 0x7f
+
+/* Rate-change complete wait/retry count */
+#define XGBE_RATECHANGE_COUNT 500
+
+static const u32 xgbe_phy_blwc[] = {
+ XGBE_SPEED_1000_BLWC,
+ XGBE_SPEED_2500_BLWC,
+ XGBE_SPEED_10000_BLWC,
+};
+
+static const u32 xgbe_phy_cdr_rate[] = {
+ XGBE_SPEED_1000_CDR,
+ XGBE_SPEED_2500_CDR,
+ XGBE_SPEED_10000_CDR,
+};
+
+static const u32 xgbe_phy_pq_skew[] = {
+ XGBE_SPEED_1000_PQ,
+ XGBE_SPEED_2500_PQ,
+ XGBE_SPEED_10000_PQ,
+};
+
+static const u32 xgbe_phy_tx_amp[] = {
+ XGBE_SPEED_1000_TXAMP,
+ XGBE_SPEED_2500_TXAMP,
+ XGBE_SPEED_10000_TXAMP,
+};
+
+static const u32 xgbe_phy_dfe_tap_cfg[] = {
+ XGBE_SPEED_1000_DFE_TAP_CONFIG,
+ XGBE_SPEED_2500_DFE_TAP_CONFIG,
+ XGBE_SPEED_10000_DFE_TAP_CONFIG,
+};
+
+static const u32 xgbe_phy_dfe_tap_ena[] = {
+ XGBE_SPEED_1000_DFE_TAP_ENABLE,
+ XGBE_SPEED_2500_DFE_TAP_ENABLE,
+ XGBE_SPEED_10000_DFE_TAP_ENABLE,
+};
+
+struct xgbe_phy_data {
+ /* 1000/10000 vs 2500/10000 indicator */
+ unsigned int speed_set;
+
+ /* SerDes UEFI configurable settings.
+ * Switching between modes/speeds requires new values for some
+ * SerDes settings. The values can be supplied as device
+ * properties in array format. The first array entry is for
+ * 1GbE, second for 2.5GbE and third for 10GbE
+ */
+ u32 blwc[XGBE_SPEEDS];
+ u32 cdr_rate[XGBE_SPEEDS];
+ u32 pq_skew[XGBE_SPEEDS];
+ u32 tx_amp[XGBE_SPEEDS];
+ u32 dfe_tap_cfg[XGBE_SPEEDS];
+ u32 dfe_tap_ena[XGBE_SPEEDS];
+};
+
+static void xgbe_phy_kr_training_pre(struct xgbe_prv_data *pdata)
+{
+ XSIR0_IOWRITE_BITS(pdata, SIR0_KR_RT_1, RESET, 1);
+}
+
+static void xgbe_phy_kr_training_post(struct xgbe_prv_data *pdata)
+{
+ XSIR0_IOWRITE_BITS(pdata, SIR0_KR_RT_1, RESET, 0);
+}
+
+static enum xgbe_mode xgbe_phy_an_outcome(struct xgbe_prv_data *pdata)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+ enum xgbe_mode mode;
+ unsigned int ad_reg, lp_reg;
+
+ pdata->phy.lp_advertising |= ADVERTISED_Autoneg;
+ pdata->phy.lp_advertising |= ADVERTISED_Backplane;
+
+ /* Compare Advertisement and Link Partner register 1 */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA);
+ if (lp_reg & 0x400)
+ pdata->phy.lp_advertising |= ADVERTISED_Pause;
+ if (lp_reg & 0x800)
+ pdata->phy.lp_advertising |= ADVERTISED_Asym_Pause;
+
+ if (pdata->phy.pause_autoneg) {
+ /* Set flow control based on auto-negotiation result */
+ pdata->phy.tx_pause = 0;
+ pdata->phy.rx_pause = 0;
+
+ if (ad_reg & lp_reg & 0x400) {
+ pdata->phy.tx_pause = 1;
+ pdata->phy.rx_pause = 1;
+ } else if (ad_reg & lp_reg & 0x800) {
+ if (ad_reg & 0x400)
+ pdata->phy.rx_pause = 1;
+ else if (lp_reg & 0x400)
+ pdata->phy.tx_pause = 1;
+ }
+ }
+
+ /* Compare Advertisement and Link Partner register 2 */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 1);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 1);
+ if (lp_reg & 0x80)
+ pdata->phy.lp_advertising |= ADVERTISED_10000baseKR_Full;
+ if (lp_reg & 0x20) {
+ if (phy_data->speed_set == XGBE_SPEEDSET_2500_10000)
+ pdata->phy.lp_advertising |= ADVERTISED_2500baseX_Full;
+ else
+ pdata->phy.lp_advertising |= ADVERTISED_1000baseKX_Full;
+ }
+
+ ad_reg &= lp_reg;
+ if (ad_reg & 0x80) {
+ mode = XGBE_MODE_KR;
+ } else if (ad_reg & 0x20) {
+ if (phy_data->speed_set == XGBE_SPEEDSET_2500_10000)
+ mode = XGBE_MODE_KX_2500;
+ else
+ mode = XGBE_MODE_KX_1000;
+ } else {
+ mode = XGBE_MODE_UNKNOWN;
+ }
+
+ /* Compare Advertisement and Link Partner register 3 */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 2);
+ if (lp_reg & 0xc000)
+ pdata->phy.lp_advertising |= ADVERTISED_10000baseR_FEC;
+
+ return mode;
+}
+
+static void xgbe_phy_pcs_power_cycle(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+
+ reg |= MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ usleep_range(75, 100);
+
+ reg &= ~MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+}
+
+static void xgbe_phy_start_ratechange(struct xgbe_prv_data *pdata)
+{
+ /* Assert Rx and Tx ratechange */
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, RATECHANGE, 1);
+}
+
+static void xgbe_phy_complete_ratechange(struct xgbe_prv_data *pdata)
+{
+ unsigned int wait;
+ u16 status;
+
+ /* Release Rx and Tx ratechange */
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, RATECHANGE, 0);
+
+ /* Wait for Rx and Tx ready */
+ wait = XGBE_RATECHANGE_COUNT;
+ while (wait--) {
+ usleep_range(50, 75);
+
+ status = XSIR0_IOREAD(pdata, SIR0_STATUS);
+ if (XSIR_GET_BITS(status, SIR0_STATUS, RX_READY) &&
+ XSIR_GET_BITS(status, SIR0_STATUS, TX_READY))
+ goto rx_reset;
+ }
+
+ netif_dbg(pdata, link, pdata->netdev, "SerDes rx/tx not ready (%#hx)\n",
+ status);
+
+rx_reset:
+ /* Perform Rx reset for the DFE changes */
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG6, RESETB_RXD, 0);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG6, RESETB_RXD, 1);
+}
+
+static void xgbe_phy_kr_mode(struct xgbe_prv_data *pdata)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+ unsigned int reg;
+
+ /* Set PCS to KR/10G speed */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ reg &= ~MDIO_PCS_CTRL2_TYPE;
+ reg |= MDIO_PCS_CTRL2_10GBR;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg &= ~MDIO_CTRL1_SPEEDSEL;
+ reg |= MDIO_CTRL1_SPEED10G;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ xgbe_phy_pcs_power_cycle(pdata);
+
+ /* Set SerDes to 10G speed */
+ xgbe_phy_start_ratechange(pdata);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_10000_RATE);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_10000_WORD);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_10000_PLL);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
+ phy_data->cdr_rate[XGBE_SPEED_10000]);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
+ phy_data->tx_amp[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
+ phy_data->blwc[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
+ phy_data->pq_skew[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
+ phy_data->dfe_tap_cfg[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE(pdata, RXTX_REG22,
+ phy_data->dfe_tap_ena[XGBE_SPEED_10000]);
+
+ xgbe_phy_complete_ratechange(pdata);
+
+ netif_dbg(pdata, link, pdata->netdev, "10GbE KR mode set\n");
+}
+
+static void xgbe_phy_kx_2500_mode(struct xgbe_prv_data *pdata)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+ unsigned int reg;
+
+ /* Set PCS to KX/1G speed */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ reg &= ~MDIO_PCS_CTRL2_TYPE;
+ reg |= MDIO_PCS_CTRL2_10GBX;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg &= ~MDIO_CTRL1_SPEEDSEL;
+ reg |= MDIO_CTRL1_SPEED1G;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ xgbe_phy_pcs_power_cycle(pdata);
+
+ /* Set SerDes to 2.5G speed */
+ xgbe_phy_start_ratechange(pdata);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_2500_RATE);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_2500_WORD);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_2500_PLL);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
+ phy_data->cdr_rate[XGBE_SPEED_2500]);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
+ phy_data->tx_amp[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
+ phy_data->blwc[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
+ phy_data->pq_skew[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
+ phy_data->dfe_tap_cfg[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE(pdata, RXTX_REG22,
+ phy_data->dfe_tap_ena[XGBE_SPEED_2500]);
+
+ xgbe_phy_complete_ratechange(pdata);
+
+ netif_dbg(pdata, link, pdata->netdev, "2.5GbE KX mode set\n");
+}
+
+static void xgbe_phy_kx_1000_mode(struct xgbe_prv_data *pdata)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+ unsigned int reg;
+
+ /* Set PCS to KX/1G speed */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ reg &= ~MDIO_PCS_CTRL2_TYPE;
+ reg |= MDIO_PCS_CTRL2_10GBX;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg &= ~MDIO_CTRL1_SPEEDSEL;
+ reg |= MDIO_CTRL1_SPEED1G;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ xgbe_phy_pcs_power_cycle(pdata);
+
+ /* Set SerDes to 1G speed */
+ xgbe_phy_start_ratechange(pdata);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_1000_RATE);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_1000_WORD);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_1000_PLL);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
+ phy_data->cdr_rate[XGBE_SPEED_1000]);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
+ phy_data->tx_amp[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
+ phy_data->blwc[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
+ phy_data->pq_skew[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
+ phy_data->dfe_tap_cfg[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE(pdata, RXTX_REG22,
+ phy_data->dfe_tap_ena[XGBE_SPEED_1000]);
+
+ xgbe_phy_complete_ratechange(pdata);
+
+ netif_dbg(pdata, link, pdata->netdev, "1GbE KX mode set\n");
+}
+
+static enum xgbe_mode xgbe_phy_cur_mode(struct xgbe_prv_data *pdata)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+ enum xgbe_mode mode;
+ unsigned int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ reg &= MDIO_PCS_CTRL2_TYPE;
+
+ if (reg == MDIO_PCS_CTRL2_10GBR) {
+ mode = XGBE_MODE_KR;
+ } else {
+ if (phy_data->speed_set == XGBE_SPEEDSET_2500_10000)
+ mode = XGBE_MODE_KX_2500;
+ else
+ mode = XGBE_MODE_KX_1000;
+ }
+
+ return mode;
+}
+
+static enum xgbe_mode xgbe_phy_switch_mode(struct xgbe_prv_data *pdata)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+ enum xgbe_mode mode;
+
+ /* If we are in KR switch to KX, and vice-versa */
+ if (xgbe_phy_cur_mode(pdata) == XGBE_MODE_KR) {
+ if (phy_data->speed_set == XGBE_SPEEDSET_2500_10000)
+ mode = XGBE_MODE_KX_2500;
+ else
+ mode = XGBE_MODE_KX_1000;
+ } else {
+ mode = XGBE_MODE_KR;
+ }
+
+ return mode;
+}
+
+static enum xgbe_mode xgbe_phy_get_mode(struct xgbe_prv_data *pdata,
+ int speed)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+
+ switch (speed) {
+ case SPEED_1000:
+ return (phy_data->speed_set == XGBE_SPEEDSET_1000_10000)
+ ? XGBE_MODE_KX_1000 : XGBE_MODE_UNKNOWN;
+ case SPEED_2500:
+ return (phy_data->speed_set == XGBE_SPEEDSET_2500_10000)
+ ? XGBE_MODE_KX_2500 : XGBE_MODE_UNKNOWN;
+ case SPEED_10000:
+ return XGBE_MODE_KR;
+ default:
+ return XGBE_MODE_UNKNOWN;
+ }
+}
+
+static void xgbe_phy_set_mode(struct xgbe_prv_data *pdata, enum xgbe_mode mode)
+{
+ switch (mode) {
+ case XGBE_MODE_KX_1000:
+ xgbe_phy_kx_1000_mode(pdata);
+ break;
+ case XGBE_MODE_KX_2500:
+ xgbe_phy_kx_2500_mode(pdata);
+ break;
+ case XGBE_MODE_KR:
+ xgbe_phy_kr_mode(pdata);
+ break;
+ default:
+ break;
+ }
+}
+
+static bool xgbe_phy_check_mode(struct xgbe_prv_data *pdata,
+ enum xgbe_mode mode, u32 advert)
+{
+ if (pdata->phy.autoneg == AUTONEG_ENABLE) {
+ if (pdata->phy.advertising & advert)
+ return true;
+ } else {
+ enum xgbe_mode cur_mode;
+
+ cur_mode = xgbe_phy_get_mode(pdata, pdata->phy.speed);
+ if (cur_mode == mode)
+ return true;
+ }
+
+ return false;
+}
+
+static bool xgbe_phy_use_mode(struct xgbe_prv_data *pdata, enum xgbe_mode mode)
+{
+ switch (mode) {
+ case XGBE_MODE_KX_1000:
+ return xgbe_phy_check_mode(pdata, mode,
+ ADVERTISED_1000baseKX_Full);
+ case XGBE_MODE_KX_2500:
+ return xgbe_phy_check_mode(pdata, mode,
+ ADVERTISED_2500baseX_Full);
+ case XGBE_MODE_KR:
+ return xgbe_phy_check_mode(pdata, mode,
+ ADVERTISED_10000baseKR_Full);
+ default:
+ return false;
+ }
+}
+
+static bool xgbe_phy_valid_speed(struct xgbe_prv_data *pdata, int speed)
+{
+ struct xgbe_phy_data *phy_data = pdata->phy_data;
+
+ switch (speed) {
+ case SPEED_1000:
+ if (phy_data->speed_set != XGBE_SPEEDSET_1000_10000)
+ return false;
+ return true;
+ case SPEED_2500:
+ if (phy_data->speed_set != XGBE_SPEEDSET_2500_10000)
+ return false;
+ return true;
+ case SPEED_10000:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static int xgbe_phy_link_status(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ /* Link status is latched low, so read once to clear
+ * and then read again to get current state
+ */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1);
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1);
+
+ return (reg & MDIO_STAT1_LSTATUS) ? 1 : 0;
+}
+
+static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
+{
+ /* Nothing uniquely required for stop */
+}
+
+static int xgbe_phy_start(struct xgbe_prv_data *pdata)
+{
+ /* Nothing uniquely required for start */
+ return 0;
+}
+
+static int xgbe_phy_reset(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg, count;
+
+ /* Perform a software reset of the PCS */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg |= MDIO_CTRL1_RESET;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ count = 50;
+ do {
+ msleep(20);
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ } while ((reg & MDIO_CTRL1_RESET) && --count);
+
+ if (reg & MDIO_CTRL1_RESET)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static void xgbe_phy_exit(struct xgbe_prv_data *pdata)
+{
+ /* Nothing uniquely required for exit */
+}
+
+static int xgbe_phy_init(struct xgbe_prv_data *pdata)
+{
+ struct xgbe_phy_data *phy_data;
+ int ret;
+
+ phy_data = devm_kzalloc(pdata->dev, sizeof(*phy_data), GFP_KERNEL);
+ if (!phy_data)
+ return -ENOMEM;
+
+ /* Retrieve the PHY speedset */
+ ret = device_property_read_u32(pdata->phy_dev, XGBE_SPEEDSET_PROPERTY,
+ &phy_data->speed_set);
+ if (ret) {
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_SPEEDSET_PROPERTY);
+ return ret;
+ }
+
+ switch (phy_data->speed_set) {
+ case XGBE_SPEEDSET_1000_10000:
+ case XGBE_SPEEDSET_2500_10000:
+ break;
+ default:
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_SPEEDSET_PROPERTY);
+ return -EINVAL;
+ }
+
+ /* Retrieve the PHY configuration properties */
+ if (device_property_present(pdata->phy_dev, XGBE_BLWC_PROPERTY)) {
+ ret = device_property_read_u32_array(pdata->phy_dev,
+ XGBE_BLWC_PROPERTY,
+ phy_data->blwc,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_BLWC_PROPERTY);
+ return ret;
+ }
+ } else {
+ memcpy(phy_data->blwc, xgbe_phy_blwc,
+ sizeof(phy_data->blwc));
+ }
+
+ if (device_property_present(pdata->phy_dev, XGBE_CDR_RATE_PROPERTY)) {
+ ret = device_property_read_u32_array(pdata->phy_dev,
+ XGBE_CDR_RATE_PROPERTY,
+ phy_data->cdr_rate,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_CDR_RATE_PROPERTY);
+ return ret;
+ }
+ } else {
+ memcpy(phy_data->cdr_rate, xgbe_phy_cdr_rate,
+ sizeof(phy_data->cdr_rate));
+ }
+
+ if (device_property_present(pdata->phy_dev, XGBE_PQ_SKEW_PROPERTY)) {
+ ret = device_property_read_u32_array(pdata->phy_dev,
+ XGBE_PQ_SKEW_PROPERTY,
+ phy_data->pq_skew,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_PQ_SKEW_PROPERTY);
+ return ret;
+ }
+ } else {
+ memcpy(phy_data->pq_skew, xgbe_phy_pq_skew,
+ sizeof(phy_data->pq_skew));
+ }
+
+ if (device_property_present(pdata->phy_dev, XGBE_TX_AMP_PROPERTY)) {
+ ret = device_property_read_u32_array(pdata->phy_dev,
+ XGBE_TX_AMP_PROPERTY,
+ phy_data->tx_amp,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_TX_AMP_PROPERTY);
+ return ret;
+ }
+ } else {
+ memcpy(phy_data->tx_amp, xgbe_phy_tx_amp,
+ sizeof(phy_data->tx_amp));
+ }
+
+ if (device_property_present(pdata->phy_dev, XGBE_DFE_CFG_PROPERTY)) {
+ ret = device_property_read_u32_array(pdata->phy_dev,
+ XGBE_DFE_CFG_PROPERTY,
+ phy_data->dfe_tap_cfg,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_DFE_CFG_PROPERTY);
+ return ret;
+ }
+ } else {
+ memcpy(phy_data->dfe_tap_cfg, xgbe_phy_dfe_tap_cfg,
+ sizeof(phy_data->dfe_tap_cfg));
+ }
+
+ if (device_property_present(pdata->phy_dev, XGBE_DFE_ENA_PROPERTY)) {
+ ret = device_property_read_u32_array(pdata->phy_dev,
+ XGBE_DFE_ENA_PROPERTY,
+ phy_data->dfe_tap_ena,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(pdata->dev, "invalid %s property\n",
+ XGBE_DFE_ENA_PROPERTY);
+ return ret;
+ }
+ } else {
+ memcpy(phy_data->dfe_tap_ena, xgbe_phy_dfe_tap_ena,
+ sizeof(phy_data->dfe_tap_ena));
+ }
+
+ /* Initialize supported features */
+ pdata->phy.supported = SUPPORTED_Autoneg;
+ pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+ pdata->phy.supported |= SUPPORTED_Backplane;
+ pdata->phy.supported |= SUPPORTED_10000baseKR_Full;
+ switch (phy_data->speed_set) {
+ case XGBE_SPEEDSET_1000_10000:
+ pdata->phy.supported |= SUPPORTED_1000baseKX_Full;
+ break;
+ case XGBE_SPEEDSET_2500_10000:
+ pdata->phy.supported |= SUPPORTED_2500baseX_Full;
+ break;
+ }
+
+ if (pdata->fec_ability & MDIO_PMA_10GBR_FECABLE_ABLE)
+ pdata->phy.supported |= SUPPORTED_10000baseR_FEC;
+
+ pdata->phy_data = phy_data;
+
+ return 0;
+}
+
+void xgbe_init_function_ptrs_phy_v1(struct xgbe_phy_if *phy_if)
+{
+ struct xgbe_phy_impl_if *phy_impl = &phy_if->phy_impl;
+
+ phy_impl->init = xgbe_phy_init;
+ phy_impl->exit = xgbe_phy_exit;
+
+ phy_impl->reset = xgbe_phy_reset;
+ phy_impl->start = xgbe_phy_start;
+ phy_impl->stop = xgbe_phy_stop;
+
+ phy_impl->link_status = xgbe_phy_link_status;
+
+ phy_impl->valid_speed = xgbe_phy_valid_speed;
+
+ phy_impl->use_mode = xgbe_phy_use_mode;
+ phy_impl->set_mode = xgbe_phy_set_mode;
+ phy_impl->get_mode = xgbe_phy_get_mode;
+ phy_impl->switch_mode = xgbe_phy_switch_mode;
+ phy_impl->cur_mode = xgbe_phy_cur_mode;
+
+ phy_impl->an_outcome = xgbe_phy_an_outcome;
+
+ phy_impl->kr_training_pre = xgbe_phy_kr_training_pre;
+ phy_impl->kr_training_post = xgbe_phy_kr_training_post;
+}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index a4e1b8d..0d33aef 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -129,7 +129,7 @@
#include <net/dcbnl.h>
#define XGBE_DRV_NAME "amd-xgbe"
-#define XGBE_DRV_VERSION "1.0.2"
+#define XGBE_DRV_VERSION "1.0.3"
#define XGBE_DRV_DESC "AMD 10 Gigabit Ethernet Driver"
/* Descriptor related defines */
@@ -191,12 +191,6 @@
#define XGBE_PHY_MODE_PROPERTY "phy-mode"
#define XGBE_DMA_IRQS_PROPERTY "amd,per-channel-interrupt"
#define XGBE_SPEEDSET_PROPERTY "amd,speed-set"
-#define XGBE_BLWC_PROPERTY "amd,serdes-blwc"
-#define XGBE_CDR_RATE_PROPERTY "amd,serdes-cdr-rate"
-#define XGBE_PQ_SKEW_PROPERTY "amd,serdes-pq-skew"
-#define XGBE_TX_AMP_PROPERTY "amd,serdes-tx-amp"
-#define XGBE_DFE_CFG_PROPERTY "amd,serdes-dfe-tap-config"
-#define XGBE_DFE_ENA_PROPERTY "amd,serdes-dfe-tap-enable"
/* Device-tree clock names */
#define XGBE_DMA_CLOCK "dma_clk"
@@ -274,40 +268,6 @@
#define XGBE_AN_PG_RCV 0x04
#define XGBE_AN_INT_MASK 0x07
-/* Rate-change complete wait/retry count */
-#define XGBE_RATECHANGE_COUNT 500
-
-/* Default SerDes settings */
-#define XGBE_SPEED_10000_BLWC 0
-#define XGBE_SPEED_10000_CDR 0x7
-#define XGBE_SPEED_10000_PLL 0x1
-#define XGBE_SPEED_10000_PQ 0x12
-#define XGBE_SPEED_10000_RATE 0x0
-#define XGBE_SPEED_10000_TXAMP 0xa
-#define XGBE_SPEED_10000_WORD 0x7
-#define XGBE_SPEED_10000_DFE_TAP_CONFIG 0x1
-#define XGBE_SPEED_10000_DFE_TAP_ENABLE 0x7f
-
-#define XGBE_SPEED_2500_BLWC 1
-#define XGBE_SPEED_2500_CDR 0x2
-#define XGBE_SPEED_2500_PLL 0x0
-#define XGBE_SPEED_2500_PQ 0xa
-#define XGBE_SPEED_2500_RATE 0x1
-#define XGBE_SPEED_2500_TXAMP 0xf
-#define XGBE_SPEED_2500_WORD 0x1
-#define XGBE_SPEED_2500_DFE_TAP_CONFIG 0x3
-#define XGBE_SPEED_2500_DFE_TAP_ENABLE 0x0
-
-#define XGBE_SPEED_1000_BLWC 1
-#define XGBE_SPEED_1000_CDR 0x2
-#define XGBE_SPEED_1000_PLL 0x0
-#define XGBE_SPEED_1000_PQ 0xa
-#define XGBE_SPEED_1000_RATE 0x3
-#define XGBE_SPEED_1000_TXAMP 0xf
-#define XGBE_SPEED_1000_WORD 0x1
-#define XGBE_SPEED_1000_DFE_TAP_CONFIG 0x3
-#define XGBE_SPEED_1000_DFE_TAP_ENABLE 0x0
-
struct xgbe_prv_data;
struct xgbe_packet_data {
@@ -527,8 +487,10 @@ enum xgbe_rx {
};
enum xgbe_mode {
- XGBE_MODE_KR = 0,
- XGBE_MODE_KX,
+ XGBE_MODE_KX_1000 = 0,
+ XGBE_MODE_KX_2500,
+ XGBE_MODE_KR,
+ XGBE_MODE_UNKNOWN,
};
enum xgbe_speedset {
@@ -624,9 +586,7 @@ struct xgbe_hw_if {
int (*read_mmd_regs)(struct xgbe_prv_data *, int, int);
void (*write_mmd_regs)(struct xgbe_prv_data *, int, int, int);
- int (*set_gmii_speed)(struct xgbe_prv_data *);
- int (*set_gmii_2500_speed)(struct xgbe_prv_data *);
- int (*set_xgmii_speed)(struct xgbe_prv_data *);
+ int (*set_speed)(struct xgbe_prv_data *, int);
void (*enable_tx)(struct xgbe_prv_data *);
void (*disable_tx)(struct xgbe_prv_data *);
@@ -707,9 +667,50 @@ struct xgbe_hw_if {
int (*set_rss_lookup_table)(struct xgbe_prv_data *, const u32 *);
};
+/* This structure represents implementation specific routines for an
+ * implementation of a PHY. All routines are required unless noted below.
+ * Optional routines:
+ * kr_training_pre, kr_training_post
+ */
+struct xgbe_phy_impl_if {
+ /* Perform Setup/teardown actions */
+ int (*init)(struct xgbe_prv_data *);
+ void (*exit)(struct xgbe_prv_data *);
+
+ /* Perform start/stop specific actions */
+ int (*reset)(struct xgbe_prv_data *);
+ int (*start)(struct xgbe_prv_data *);
+ void (*stop)(struct xgbe_prv_data *);
+
+ /* Return the link status */
+ int (*link_status)(struct xgbe_prv_data *);
+
+ /* Indicate if a particular speed is valid */
+ bool (*valid_speed)(struct xgbe_prv_data *, int);
+
+ /* Check if the specified mode can/should be used */
+ bool (*use_mode)(struct xgbe_prv_data *, enum xgbe_mode);
+ /* Switch the PHY into various modes */
+ void (*set_mode)(struct xgbe_prv_data *, enum xgbe_mode);
+ /* Retrieve mode needed for a specific speed */
+ enum xgbe_mode (*get_mode)(struct xgbe_prv_data *, int);
+ /* Retrieve new/next mode when trying to auto-negotiate */
+ enum xgbe_mode (*switch_mode)(struct xgbe_prv_data *);
+ /* Retrieve current mode */
+ enum xgbe_mode (*cur_mode)(struct xgbe_prv_data *);
+
+ /* Process results of auto-negotiation */
+ enum xgbe_mode (*an_outcome)(struct xgbe_prv_data *);
+
+ /* Pre/Post KR training enablement support */
+ void (*kr_training_pre)(struct xgbe_prv_data *);
+ void (*kr_training_post)(struct xgbe_prv_data *);
+};
+
struct xgbe_phy_if {
- /* For initial PHY setup */
- void (*phy_init)(struct xgbe_prv_data *);
+ /* For PHY setup/teardown */
+ int (*phy_init)(struct xgbe_prv_data *);
+ void (*phy_exit)(struct xgbe_prv_data *);
/* For PHY support when setting device up/down */
int (*phy_reset)(struct xgbe_prv_data *);
@@ -719,6 +720,12 @@ struct xgbe_phy_if {
/* For PHY support while device is up */
void (*phy_status)(struct xgbe_prv_data *);
int (*phy_config_aneg)(struct xgbe_prv_data *);
+
+ /* For PHY settings validation */
+ bool (*phy_valid_speed)(struct xgbe_prv_data *, int);
+
+ /* PHY implementation specific services */
+ struct xgbe_phy_impl_if phy_impl;
};
struct xgbe_desc_if {
@@ -778,11 +785,20 @@ struct xgbe_hw_features {
unsigned int aux_snap_num; /* Number of Aux snapshot inputs */
};
+struct xgbe_version_data {
+ void (*init_function_ptrs_phy_impl)(struct xgbe_phy_if *);
+};
+
struct xgbe_prv_data {
struct net_device *netdev;
struct platform_device *pdev;
struct acpi_device *adev;
struct device *dev;
+ struct platform_device *phy_pdev;
+ struct device *phy_dev;
+
+ /* Version related data */
+ struct xgbe_version_data *vdata;
/* ACPI or DT flag */
unsigned int use_acpi;
@@ -928,6 +944,8 @@ struct xgbe_prv_data {
int phy_speed;
/* MDIO/PHY related settings */
+ unsigned int phy_started;
+ void *phy_data;
struct xgbe_phy phy;
int mdio_mmd;
unsigned long link_check;
@@ -938,21 +956,6 @@ struct xgbe_prv_data {
int an_irq;
struct work_struct an_irq_work;
- unsigned int speed_set;
-
- /* SerDes UEFI configurable settings.
- * Switching between modes/speeds requires new values for some
- * SerDes settings. The values can be supplied as device
- * properties in array format. The first array entry is for
- * 1GbE, second for 2.5GbE and third for 10GbE
- */
- u32 serdes_blwc[XGBE_SPEEDS];
- u32 serdes_cdr_rate[XGBE_SPEEDS];
- u32 serdes_pq_skew[XGBE_SPEEDS];
- u32 serdes_tx_amp[XGBE_SPEEDS];
- u32 serdes_dfe_tap_cfg[XGBE_SPEEDS];
- u32 serdes_dfe_tap_ena[XGBE_SPEEDS];
-
/* Auto-negotiation state machine support */
unsigned int an_int;
struct mutex an_mutex;
@@ -982,6 +985,7 @@ struct xgbe_prv_data {
void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *);
void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *);
+void xgbe_init_function_ptrs_phy_v1(struct xgbe_phy_if *);
void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *);
const struct net_device_ops *xgbe_get_netdev_ops(void);
const struct ethtool_ops *xgbe_get_ethtool_ops(void);
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 05/10] amd-xgbe: Prepare for introduction of clause 37 autoneg
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (3 preceding siblings ...)
2016-11-03 18:18 ` [PATCH net-next v1 04/10] amd-xgbe: Prepare for working with more than one type of phy Tom Lendacky
@ 2016-11-03 18:18 ` Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 06/10] amd-xgbe: Add support for clause 37 auto-negotiation Tom Lendacky
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:18 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Prepare for the future introduction of clause 37 auto-negotiation by
updating the current auto-negotiation related functions to identify
them as clause 73 functions. Move interrupt enablement to the
enable/disable auto-negotiation functions. Update what will be common
routines to check for the current type of AN and process accordingly.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-common.h | 5 +
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 235 ++++++++++++++++++---------
drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c | 7 +
drivers/net/ethernet/amd/xgbe/xgbe.h | 14 +-
4 files changed, 176 insertions(+), 85 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index bbef959..695e982 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -1052,6 +1052,11 @@
#endif
/* MDIO mask values */
+#define XGBE_AN_CL73_INT_CMPLT BIT(0)
+#define XGBE_AN_CL73_INC_LINK BIT(1)
+#define XGBE_AN_CL73_PG_RCV BIT(2)
+#define XGBE_AN_CL73_INT_MASK 0x07
+
#define XGBE_XNP_MCF_NULL_MESSAGE 0x001
#define XGBE_XNP_ACK_PROCESSED BIT(12)
#define XGBE_XNP_MP_FORMATTED BIT(13)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 35c302f..d5bfbe4 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -125,7 +125,33 @@
#include "xgbe.h"
#include "xgbe-common.h"
-static void xgbe_an_enable_kr_training(struct xgbe_prv_data *pdata)
+static void xgbe_an73_clear_interrupts(struct xgbe_prv_data *pdata)
+{
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+}
+
+static void xgbe_an73_disable_interrupts(struct xgbe_prv_data *pdata)
+{
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, 0);
+}
+
+static void xgbe_an73_enable_interrupts(struct xgbe_prv_data *pdata)
+{
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, XGBE_AN_CL73_INT_MASK);
+}
+
+static void xgbe_an_enable_interrupts(struct xgbe_prv_data *pdata)
+{
+ switch (pdata->an_mode) {
+ case XGBE_AN_MODE_CL73:
+ xgbe_an73_enable_interrupts(pdata);
+ break;
+ default:
+ break;
+ }
+}
+
+static void xgbe_an73_enable_kr_training(struct xgbe_prv_data *pdata)
{
unsigned int reg;
@@ -135,7 +161,7 @@ static void xgbe_an_enable_kr_training(struct xgbe_prv_data *pdata)
XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
}
-static void xgbe_an_disable_kr_training(struct xgbe_prv_data *pdata)
+static void xgbe_an73_disable_kr_training(struct xgbe_prv_data *pdata)
{
unsigned int reg;
@@ -148,7 +174,7 @@ static void xgbe_an_disable_kr_training(struct xgbe_prv_data *pdata)
static void xgbe_kr_mode(struct xgbe_prv_data *pdata)
{
/* Enable KR training */
- xgbe_an_enable_kr_training(pdata);
+ xgbe_an73_enable_kr_training(pdata);
/* Set MAC to 10G speed */
pdata->hw_if.set_speed(pdata, SPEED_10000);
@@ -160,7 +186,7 @@ static void xgbe_kr_mode(struct xgbe_prv_data *pdata)
static void xgbe_kx_2500_mode(struct xgbe_prv_data *pdata)
{
/* Disable KR training */
- xgbe_an_disable_kr_training(pdata);
+ xgbe_an73_disable_kr_training(pdata);
/* Set MAC to 2.5G speed */
pdata->hw_if.set_speed(pdata, SPEED_2500);
@@ -172,7 +198,7 @@ static void xgbe_kx_2500_mode(struct xgbe_prv_data *pdata)
static void xgbe_kx_1000_mode(struct xgbe_prv_data *pdata)
{
/* Disable KR training */
- xgbe_an_disable_kr_training(pdata);
+ xgbe_an73_disable_kr_training(pdata);
/* Set MAC to 1G speed */
pdata->hw_if.set_speed(pdata, SPEED_1000);
@@ -232,7 +258,8 @@ static bool xgbe_use_mode(struct xgbe_prv_data *pdata,
return pdata->phy_if.phy_impl.use_mode(pdata, mode);
}
-static void xgbe_set_an(struct xgbe_prv_data *pdata, bool enable, bool restart)
+static void xgbe_an73_set(struct xgbe_prv_data *pdata, bool enable,
+ bool restart)
{
unsigned int reg;
@@ -248,22 +275,46 @@ static void xgbe_set_an(struct xgbe_prv_data *pdata, bool enable, bool restart)
XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_CTRL1, reg);
}
-static void xgbe_restart_an(struct xgbe_prv_data *pdata)
+static void xgbe_an73_restart(struct xgbe_prv_data *pdata)
{
- xgbe_set_an(pdata, true, true);
+ xgbe_an73_enable_interrupts(pdata);
+ xgbe_an73_set(pdata, true, true);
- netif_dbg(pdata, link, pdata->netdev, "AN enabled/restarted\n");
+ netif_dbg(pdata, link, pdata->netdev, "CL73 AN enabled/restarted\n");
}
-static void xgbe_disable_an(struct xgbe_prv_data *pdata)
+static void xgbe_an73_disable(struct xgbe_prv_data *pdata)
{
- xgbe_set_an(pdata, false, false);
+ xgbe_an73_set(pdata, false, false);
+ xgbe_an73_disable_interrupts(pdata);
- netif_dbg(pdata, link, pdata->netdev, "AN disabled\n");
+ netif_dbg(pdata, link, pdata->netdev, "CL73 AN disabled\n");
}
-static enum xgbe_an xgbe_an_tx_training(struct xgbe_prv_data *pdata,
- enum xgbe_rx *state)
+static void xgbe_an_restart(struct xgbe_prv_data *pdata)
+{
+ switch (pdata->an_mode) {
+ case XGBE_AN_MODE_CL73:
+ xgbe_an73_restart(pdata);
+ break;
+ default:
+ break;
+ }
+}
+
+static void xgbe_an_disable(struct xgbe_prv_data *pdata)
+{
+ switch (pdata->an_mode) {
+ case XGBE_AN_MODE_CL73:
+ xgbe_an73_disable(pdata);
+ break;
+ default:
+ break;
+ }
+}
+
+static enum xgbe_an xgbe_an73_tx_training(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
{
unsigned int ad_reg, lp_reg, reg;
@@ -304,8 +355,8 @@ static enum xgbe_an xgbe_an_tx_training(struct xgbe_prv_data *pdata,
return XGBE_AN_PAGE_RECEIVED;
}
-static enum xgbe_an xgbe_an_tx_xnp(struct xgbe_prv_data *pdata,
- enum xgbe_rx *state)
+static enum xgbe_an xgbe_an73_tx_xnp(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
{
u16 msg;
@@ -321,8 +372,8 @@ static enum xgbe_an xgbe_an_tx_xnp(struct xgbe_prv_data *pdata,
return XGBE_AN_PAGE_RECEIVED;
}
-static enum xgbe_an xgbe_an_rx_bpa(struct xgbe_prv_data *pdata,
- enum xgbe_rx *state)
+static enum xgbe_an xgbe_an73_rx_bpa(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
{
unsigned int link_support;
unsigned int reg, ad_reg, lp_reg;
@@ -341,12 +392,12 @@ static enum xgbe_an xgbe_an_rx_bpa(struct xgbe_prv_data *pdata,
return ((ad_reg & XGBE_XNP_NP_EXCHANGE) ||
(lp_reg & XGBE_XNP_NP_EXCHANGE))
- ? xgbe_an_tx_xnp(pdata, state)
- : xgbe_an_tx_training(pdata, state);
+ ? xgbe_an73_tx_xnp(pdata, state)
+ : xgbe_an73_tx_training(pdata, state);
}
-static enum xgbe_an xgbe_an_rx_xnp(struct xgbe_prv_data *pdata,
- enum xgbe_rx *state)
+static enum xgbe_an xgbe_an73_rx_xnp(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
{
unsigned int ad_reg, lp_reg;
@@ -356,11 +407,11 @@ static enum xgbe_an xgbe_an_rx_xnp(struct xgbe_prv_data *pdata,
return ((ad_reg & XGBE_XNP_NP_EXCHANGE) ||
(lp_reg & XGBE_XNP_NP_EXCHANGE))
- ? xgbe_an_tx_xnp(pdata, state)
- : xgbe_an_tx_training(pdata, state);
+ ? xgbe_an73_tx_xnp(pdata, state)
+ : xgbe_an73_tx_training(pdata, state);
}
-static enum xgbe_an xgbe_an_page_received(struct xgbe_prv_data *pdata)
+static enum xgbe_an xgbe_an73_page_received(struct xgbe_prv_data *pdata)
{
enum xgbe_rx *state;
unsigned long an_timeout;
@@ -379,7 +430,7 @@ static enum xgbe_an xgbe_an_page_received(struct xgbe_prv_data *pdata)
pdata->an_start = jiffies;
netif_dbg(pdata, link, pdata->netdev,
- "AN timed out, resetting state\n");
+ "CL73 AN timed out, resetting state\n");
}
}
@@ -388,11 +439,11 @@ static enum xgbe_an xgbe_an_page_received(struct xgbe_prv_data *pdata)
switch (*state) {
case XGBE_RX_BPA:
- ret = xgbe_an_rx_bpa(pdata, state);
+ ret = xgbe_an73_rx_bpa(pdata, state);
break;
case XGBE_RX_XNP:
- ret = xgbe_an_rx_xnp(pdata, state);
+ ret = xgbe_an73_rx_xnp(pdata, state);
break;
default:
@@ -402,7 +453,7 @@ static enum xgbe_an xgbe_an_page_received(struct xgbe_prv_data *pdata)
return ret;
}
-static enum xgbe_an xgbe_an_incompat_link(struct xgbe_prv_data *pdata)
+static enum xgbe_an xgbe_an73_incompat_link(struct xgbe_prv_data *pdata)
{
/* Be sure we aren't looping trying to negotiate */
if (xgbe_in_kr_mode(pdata)) {
@@ -424,23 +475,19 @@ static enum xgbe_an xgbe_an_incompat_link(struct xgbe_prv_data *pdata)
return XGBE_AN_NO_LINK;
}
- xgbe_disable_an(pdata);
+ xgbe_an73_disable(pdata);
xgbe_switch_mode(pdata);
- xgbe_restart_an(pdata);
+ xgbe_an73_restart(pdata);
return XGBE_AN_INCOMPAT_LINK;
}
-static irqreturn_t xgbe_an_isr(int irq, void *data)
+static void xgbe_an73_isr(struct xgbe_prv_data *pdata)
{
- struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
-
- netif_dbg(pdata, intr, pdata->netdev, "AN interrupt received\n");
-
/* Disable AN interrupts */
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, 0);
+ xgbe_an73_disable_interrupts(pdata);
/* Save the interrupt(s) that fired */
pdata->an_int = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_INT);
@@ -452,8 +499,22 @@ static irqreturn_t xgbe_an_isr(int irq, void *data)
queue_work(pdata->an_workqueue, &pdata->an_irq_work);
} else {
/* Enable AN interrupts */
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK,
- XGBE_AN_INT_MASK);
+ xgbe_an73_enable_interrupts(pdata);
+ }
+}
+
+static irqreturn_t xgbe_an_isr(int irq, void *data)
+{
+ struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+
+ netif_dbg(pdata, intr, pdata->netdev, "AN interrupt received\n");
+
+ switch (pdata->an_mode) {
+ case XGBE_AN_MODE_CL73:
+ xgbe_an73_isr(pdata);
+ break;
+ default:
+ break;
}
return IRQ_HANDLED;
@@ -492,28 +553,23 @@ static const char *xgbe_state_as_string(enum xgbe_an state)
}
}
-static void xgbe_an_state_machine(struct work_struct *work)
+static void xgbe_an73_state_machine(struct xgbe_prv_data *pdata)
{
- struct xgbe_prv_data *pdata = container_of(work,
- struct xgbe_prv_data,
- an_work);
enum xgbe_an cur_state = pdata->an_state;
- mutex_lock(&pdata->an_mutex);
-
if (!pdata->an_int)
- goto out;
+ return;
next_int:
- if (pdata->an_int & XGBE_AN_PG_RCV) {
+ if (pdata->an_int & XGBE_AN_CL73_PG_RCV) {
pdata->an_state = XGBE_AN_PAGE_RECEIVED;
- pdata->an_int &= ~XGBE_AN_PG_RCV;
- } else if (pdata->an_int & XGBE_AN_INC_LINK) {
+ pdata->an_int &= ~XGBE_AN_CL73_PG_RCV;
+ } else if (pdata->an_int & XGBE_AN_CL73_INC_LINK) {
pdata->an_state = XGBE_AN_INCOMPAT_LINK;
- pdata->an_int &= ~XGBE_AN_INC_LINK;
- } else if (pdata->an_int & XGBE_AN_INT_CMPLT) {
+ pdata->an_int &= ~XGBE_AN_CL73_INC_LINK;
+ } else if (pdata->an_int & XGBE_AN_CL73_INT_CMPLT) {
pdata->an_state = XGBE_AN_COMPLETE;
- pdata->an_int &= ~XGBE_AN_INT_CMPLT;
+ pdata->an_int &= ~XGBE_AN_CL73_INT_CMPLT;
} else {
pdata->an_state = XGBE_AN_ERROR;
}
@@ -521,7 +577,7 @@ static void xgbe_an_state_machine(struct work_struct *work)
pdata->an_result = pdata->an_state;
again:
- netif_dbg(pdata, link, pdata->netdev, "AN %s\n",
+ netif_dbg(pdata, link, pdata->netdev, "CL73 AN %s\n",
xgbe_state_as_string(pdata->an_state));
cur_state = pdata->an_state;
@@ -532,14 +588,14 @@ static void xgbe_an_state_machine(struct work_struct *work)
break;
case XGBE_AN_PAGE_RECEIVED:
- pdata->an_state = xgbe_an_page_received(pdata);
+ pdata->an_state = xgbe_an73_page_received(pdata);
pdata->an_supported++;
break;
case XGBE_AN_INCOMPAT_LINK:
pdata->an_supported = 0;
pdata->parallel_detect = 0;
- pdata->an_state = xgbe_an_incompat_link(pdata);
+ pdata->an_state = xgbe_an73_incompat_link(pdata);
break;
case XGBE_AN_COMPLETE:
@@ -558,14 +614,14 @@ static void xgbe_an_state_machine(struct work_struct *work)
if (pdata->an_state == XGBE_AN_NO_LINK) {
pdata->an_int = 0;
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+ xgbe_an73_clear_interrupts(pdata);
} else if (pdata->an_state == XGBE_AN_ERROR) {
netdev_err(pdata->netdev,
"error during auto-negotiation, state=%u\n",
cur_state);
pdata->an_int = 0;
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+ xgbe_an73_clear_interrupts(pdata);
}
if (pdata->an_state >= XGBE_AN_COMPLETE) {
@@ -575,7 +631,7 @@ static void xgbe_an_state_machine(struct work_struct *work)
pdata->kx_state = XGBE_RX_BPA;
pdata->an_start = 0;
- netif_dbg(pdata, link, pdata->netdev, "AN result: %s\n",
+ netif_dbg(pdata, link, pdata->netdev, "CL73 AN result: %s\n",
xgbe_state_as_string(pdata->an_result));
}
@@ -585,14 +641,29 @@ static void xgbe_an_state_machine(struct work_struct *work)
if (pdata->an_int)
goto next_int;
-out:
- /* Enable AN interrupts on the way out */
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, XGBE_AN_INT_MASK);
+ xgbe_an73_enable_interrupts(pdata);
+}
+
+static void xgbe_an_state_machine(struct work_struct *work)
+{
+ struct xgbe_prv_data *pdata = container_of(work,
+ struct xgbe_prv_data,
+ an_work);
+
+ mutex_lock(&pdata->an_mutex);
+
+ switch (pdata->an_mode) {
+ case XGBE_AN_MODE_CL73:
+ xgbe_an73_state_machine(pdata);
+ break;
+ default:
+ break;
+ }
mutex_unlock(&pdata->an_mutex);
}
-static void xgbe_an_init(struct xgbe_prv_data *pdata)
+static void xgbe_an73_init(struct xgbe_prv_data *pdata)
{
unsigned int reg;
@@ -637,7 +708,20 @@ static void xgbe_an_init(struct xgbe_prv_data *pdata)
XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE, reg);
- netif_dbg(pdata, link, pdata->netdev, "AN initialized\n");
+ netif_dbg(pdata, link, pdata->netdev, "CL73 AN initialized\n");
+}
+
+static void xgbe_an_init(struct xgbe_prv_data *pdata)
+{
+ /* Set up advertisement registers based on current settings */
+ pdata->an_mode = pdata->phy_if.phy_impl.an_mode(pdata);
+ switch (pdata->an_mode) {
+ case XGBE_AN_MODE_CL73:
+ xgbe_an73_init(pdata);
+ break;
+ default:
+ break;
+ }
}
static const char *xgbe_phy_fc_string(struct xgbe_prv_data *pdata)
@@ -732,7 +816,7 @@ static int xgbe_phy_config_fixed(struct xgbe_prv_data *pdata)
netif_dbg(pdata, link, pdata->netdev, "fixed PHY configuration\n");
/* Disable auto-negotiation */
- xgbe_disable_an(pdata);
+ xgbe_an_disable(pdata);
/* Set specified mode for specified speed */
mode = pdata->phy_if.phy_impl.get_mode(pdata, pdata->phy.speed);
@@ -781,10 +865,10 @@ static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
}
/* Disable and stop any in progress auto-negotiation */
- xgbe_disable_an(pdata);
+ xgbe_an_disable(pdata);
/* Clear any auto-negotitation interrupts */
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+ xgbe_an73_clear_interrupts(pdata);
pdata->an_result = XGBE_AN_READY;
pdata->an_state = XGBE_AN_READY;
@@ -794,11 +878,8 @@ static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
/* Re-enable auto-negotiation interrupt */
enable_irq(pdata->an_irq);
- /* Set up advertisement registers based on current settings */
xgbe_an_init(pdata);
-
- /* Enable and start auto-negotiation */
- xgbe_restart_an(pdata);
+ xgbe_an_restart(pdata);
return 0;
}
@@ -926,10 +1007,7 @@ static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
pdata->phy_started = 0;
/* Disable auto-negotiation */
- xgbe_disable_an(pdata);
-
- /* Disable auto-negotiation interrupts */
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, 0);
+ xgbe_an_disable(pdata);
devm_free_irq(pdata->dev, pdata->an_irq, pdata);
@@ -977,11 +1055,8 @@ static int xgbe_phy_start(struct xgbe_prv_data *pdata)
/* Indicate the PHY is up and running */
pdata->phy_started = 1;
- /* Set up advertisement registers based on current settings */
xgbe_an_init(pdata);
-
- /* Enable auto-negotiation interrupts */
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, 0x07);
+ xgbe_an_enable_interrupts(pdata);
return xgbe_phy_config_aneg(pdata);
@@ -1003,10 +1078,10 @@ static int xgbe_phy_reset(struct xgbe_prv_data *pdata)
return ret;
/* Disable auto-negotiation for now */
- xgbe_disable_an(pdata);
+ xgbe_an_disable(pdata);
/* Clear auto-negotiation interrupts */
- XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+ xgbe_an73_clear_interrupts(pdata);
return 0;
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c
index 20ccb99..9c913a0 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v1.c
@@ -295,6 +295,11 @@ static enum xgbe_mode xgbe_phy_an_outcome(struct xgbe_prv_data *pdata)
return mode;
}
+static enum xgbe_an_mode xgbe_phy_an_mode(struct xgbe_prv_data *pdata)
+{
+ return XGBE_AN_MODE_CL73;
+}
+
static void xgbe_phy_pcs_power_cycle(struct xgbe_prv_data *pdata)
{
unsigned int reg;
@@ -814,6 +819,8 @@ void xgbe_init_function_ptrs_phy_v1(struct xgbe_phy_if *phy_if)
phy_impl->switch_mode = xgbe_phy_switch_mode;
phy_impl->cur_mode = xgbe_phy_cur_mode;
+ phy_impl->an_mode = xgbe_phy_an_mode;
+
phy_impl->an_outcome = xgbe_phy_an_outcome;
phy_impl->kr_training_pre = xgbe_phy_kr_training_pre;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 0d33aef..d90ecbc 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -263,11 +263,6 @@
#define XGBE_AN_MS_TIMEOUT 500
#define XGBE_LINK_TIMEOUT 10
-#define XGBE_AN_INT_CMPLT 0x01
-#define XGBE_AN_INC_LINK 0x02
-#define XGBE_AN_PG_RCV 0x04
-#define XGBE_AN_INT_MASK 0x07
-
struct xgbe_prv_data;
struct xgbe_packet_data {
@@ -470,6 +465,11 @@ enum xgbe_speed {
XGBE_SPEEDS,
};
+enum xgbe_an_mode {
+ XGBE_AN_MODE_CL73 = 0,
+ XGBE_AN_MODE_NONE,
+};
+
enum xgbe_an {
XGBE_AN_READY = 0,
XGBE_AN_PAGE_RECEIVED,
@@ -699,6 +699,9 @@ struct xgbe_phy_impl_if {
/* Retrieve current mode */
enum xgbe_mode (*cur_mode)(struct xgbe_prv_data *);
+ /* Retrieve current auto-negotiation mode */
+ enum xgbe_an_mode (*an_mode)(struct xgbe_prv_data *);
+
/* Process results of auto-negotiation */
enum xgbe_mode (*an_outcome)(struct xgbe_prv_data *);
@@ -968,6 +971,7 @@ struct xgbe_prv_data {
unsigned int parallel_detect;
unsigned int fec_ability;
unsigned long an_start;
+ enum xgbe_an_mode an_mode;
unsigned int lpm_ctrl; /* CTRL1 for resume */
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 06/10] amd-xgbe: Add support for clause 37 auto-negotiation
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (4 preceding siblings ...)
2016-11-03 18:18 ` [PATCH net-next v1 05/10] amd-xgbe: Prepare for introduction of clause 37 autoneg Tom Lendacky
@ 2016-11-03 18:18 ` Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 07/10] amd-xgbe: Prepare for a new PCS register access method Tom Lendacky
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:18 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Add support to be able to use clause 37 auto-negotiation.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-common.h | 41 +++++
drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 242 ++++++++++++++++++++++++++-
drivers/net/ethernet/amd/xgbe/xgbe.h | 11 +
3 files changed, 286 insertions(+), 8 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index 695e982..8bcf4ef 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -1027,6 +1027,10 @@
#define MDIO_PMA_10GBR_FECCTRL 0x00ab
#endif
+#ifndef MDIO_PCS_DIG_CTRL
+#define MDIO_PCS_DIG_CTRL 0x8000
+#endif
+
#ifndef MDIO_AN_XNP
#define MDIO_AN_XNP 0x0016
#endif
@@ -1047,10 +1051,34 @@
#define MDIO_AN_INT 0x8002
#endif
+#ifndef MDIO_VEND2_AN_ADVERTISE
+#define MDIO_VEND2_AN_ADVERTISE 0x0004
+#endif
+
+#ifndef MDIO_VEND2_AN_LP_ABILITY
+#define MDIO_VEND2_AN_LP_ABILITY 0x0005
+#endif
+
+#ifndef MDIO_VEND2_AN_CTRL
+#define MDIO_VEND2_AN_CTRL 0x8001
+#endif
+
+#ifndef MDIO_VEND2_AN_STAT
+#define MDIO_VEND2_AN_STAT 0x8002
+#endif
+
#ifndef MDIO_CTRL1_SPEED1G
#define MDIO_CTRL1_SPEED1G (MDIO_CTRL1_SPEED10G & ~BMCR_SPEED100)
#endif
+#ifndef MDIO_VEND2_CTRL1_AN_ENABLE
+#define MDIO_VEND2_CTRL1_AN_ENABLE BIT(12)
+#endif
+
+#ifndef MDIO_VEND2_CTRL1_AN_RESTART
+#define MDIO_VEND2_CTRL1_AN_RESTART BIT(9)
+#endif
+
/* MDIO mask values */
#define XGBE_AN_CL73_INT_CMPLT BIT(0)
#define XGBE_AN_CL73_INC_LINK BIT(1)
@@ -1065,6 +1093,19 @@
#define XGBE_KR_TRAINING_START BIT(0)
#define XGBE_KR_TRAINING_ENABLE BIT(1)
+#define XGBE_PCS_CL37_BP BIT(12)
+
+#define XGBE_AN_CL37_INT_CMPLT BIT(0)
+#define XGBE_AN_CL37_INT_MASK 0x01
+
+#define XGBE_AN_CL37_HD_MASK 0x40
+#define XGBE_AN_CL37_FD_MASK 0x20
+
+#define XGBE_AN_CL37_PCS_MODE_MASK 0x06
+#define XGBE_AN_CL37_PCS_MODE_BASEX 0x00
+#define XGBE_AN_CL37_PCS_MODE_SGMII 0x04
+#define XGBE_AN_CL37_TX_CONFIG_MASK 0x08
+
/* Bit setting and getting macros
* The get macro will extract the current bit field value from within
* the variable
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index d5bfbe4..723eb90 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -125,6 +125,41 @@
#include "xgbe.h"
#include "xgbe-common.h"
+static void xgbe_an37_clear_interrupts(struct xgbe_prv_data *pdata)
+{
+ int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_STAT);
+ reg &= ~XGBE_AN_CL37_INT_MASK;
+ XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_STAT, reg);
+}
+
+static void xgbe_an37_disable_interrupts(struct xgbe_prv_data *pdata)
+{
+ int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_CTRL);
+ reg &= ~XGBE_AN_CL37_INT_MASK;
+ XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_CTRL, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_PCS_DIG_CTRL);
+ reg &= ~XGBE_PCS_CL37_BP;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_PCS_DIG_CTRL, reg);
+}
+
+static void xgbe_an37_enable_interrupts(struct xgbe_prv_data *pdata)
+{
+ int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_PCS_DIG_CTRL);
+ reg |= XGBE_PCS_CL37_BP;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_PCS_DIG_CTRL, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_CTRL);
+ reg |= XGBE_AN_CL37_INT_MASK;
+ XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_CTRL, reg);
+}
+
static void xgbe_an73_clear_interrupts(struct xgbe_prv_data *pdata)
{
XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
@@ -146,11 +181,21 @@ static void xgbe_an_enable_interrupts(struct xgbe_prv_data *pdata)
case XGBE_AN_MODE_CL73:
xgbe_an73_enable_interrupts(pdata);
break;
+ case XGBE_AN_MODE_CL37:
+ case XGBE_AN_MODE_CL37_SGMII:
+ xgbe_an37_enable_interrupts(pdata);
+ break;
default:
break;
}
}
+static void xgbe_an_clear_interrupts_all(struct xgbe_prv_data *pdata)
+{
+ xgbe_an73_clear_interrupts(pdata);
+ xgbe_an37_clear_interrupts(pdata);
+}
+
static void xgbe_an73_enable_kr_training(struct xgbe_prv_data *pdata)
{
unsigned int reg;
@@ -258,6 +303,39 @@ static bool xgbe_use_mode(struct xgbe_prv_data *pdata,
return pdata->phy_if.phy_impl.use_mode(pdata, mode);
}
+static void xgbe_an37_set(struct xgbe_prv_data *pdata, bool enable,
+ bool restart)
+{
+ unsigned int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_CTRL1);
+ reg &= ~MDIO_VEND2_CTRL1_AN_ENABLE;
+
+ if (enable)
+ reg |= MDIO_VEND2_CTRL1_AN_ENABLE;
+
+ if (restart)
+ reg |= MDIO_VEND2_CTRL1_AN_RESTART;
+
+ XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_CTRL1, reg);
+}
+
+static void xgbe_an37_restart(struct xgbe_prv_data *pdata)
+{
+ xgbe_an37_enable_interrupts(pdata);
+ xgbe_an37_set(pdata, true, true);
+
+ netif_dbg(pdata, link, pdata->netdev, "CL37 AN enabled/restarted\n");
+}
+
+static void xgbe_an37_disable(struct xgbe_prv_data *pdata)
+{
+ xgbe_an37_set(pdata, false, false);
+ xgbe_an37_disable_interrupts(pdata);
+
+ netif_dbg(pdata, link, pdata->netdev, "CL37 AN disabled\n");
+}
+
static void xgbe_an73_set(struct xgbe_prv_data *pdata, bool enable,
bool restart)
{
@@ -297,6 +375,10 @@ static void xgbe_an_restart(struct xgbe_prv_data *pdata)
case XGBE_AN_MODE_CL73:
xgbe_an73_restart(pdata);
break;
+ case XGBE_AN_MODE_CL37:
+ case XGBE_AN_MODE_CL37_SGMII:
+ xgbe_an37_restart(pdata);
+ break;
default:
break;
}
@@ -308,11 +390,21 @@ static void xgbe_an_disable(struct xgbe_prv_data *pdata)
case XGBE_AN_MODE_CL73:
xgbe_an73_disable(pdata);
break;
+ case XGBE_AN_MODE_CL37:
+ case XGBE_AN_MODE_CL37_SGMII:
+ xgbe_an37_disable(pdata);
+ break;
default:
break;
}
}
+static void xgbe_an_disable_all(struct xgbe_prv_data *pdata)
+{
+ xgbe_an73_disable(pdata);
+ xgbe_an37_disable(pdata);
+}
+
static enum xgbe_an xgbe_an73_tx_training(struct xgbe_prv_data *pdata,
enum xgbe_rx *state)
{
@@ -484,6 +576,30 @@ static enum xgbe_an xgbe_an73_incompat_link(struct xgbe_prv_data *pdata)
return XGBE_AN_INCOMPAT_LINK;
}
+static void xgbe_an37_isr(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ /* Disable AN interrupts */
+ xgbe_an37_disable_interrupts(pdata);
+
+ /* Save the interrupt(s) that fired */
+ reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_STAT);
+ pdata->an_int = reg & XGBE_AN_CL37_INT_MASK;
+ pdata->an_status = reg & ~XGBE_AN_CL37_INT_MASK;
+
+ if (pdata->an_int) {
+ /* Clear the interrupt(s) that fired and process them */
+ reg &= ~XGBE_AN_CL37_INT_MASK;
+ XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_STAT, reg);
+
+ queue_work(pdata->an_workqueue, &pdata->an_irq_work);
+ } else {
+ /* Enable AN interrupts */
+ xgbe_an37_enable_interrupts(pdata);
+ }
+}
+
static void xgbe_an73_isr(struct xgbe_prv_data *pdata)
{
/* Disable AN interrupts */
@@ -513,6 +629,10 @@ static irqreturn_t xgbe_an_isr(int irq, void *data)
case XGBE_AN_MODE_CL73:
xgbe_an73_isr(pdata);
break;
+ case XGBE_AN_MODE_CL37:
+ case XGBE_AN_MODE_CL37_SGMII:
+ xgbe_an37_isr(pdata);
+ break;
default:
break;
}
@@ -553,6 +673,64 @@ static const char *xgbe_state_as_string(enum xgbe_an state)
}
}
+static void xgbe_an37_state_machine(struct xgbe_prv_data *pdata)
+{
+ enum xgbe_an cur_state = pdata->an_state;
+
+ if (!pdata->an_int)
+ return;
+
+ if (pdata->an_int & XGBE_AN_CL37_INT_CMPLT) {
+ pdata->an_state = XGBE_AN_COMPLETE;
+ pdata->an_int &= ~XGBE_AN_CL37_INT_CMPLT;
+
+ /* If SGMII is enabled, check the link status */
+ if ((pdata->an_mode == XGBE_AN_MODE_CL37_SGMII) &&
+ !(pdata->an_status & XGBE_SGMII_AN_LINK_STATUS))
+ pdata->an_state = XGBE_AN_NO_LINK;
+ }
+
+ netif_dbg(pdata, link, pdata->netdev, "CL37 AN %s\n",
+ xgbe_state_as_string(pdata->an_state));
+
+ cur_state = pdata->an_state;
+
+ switch (pdata->an_state) {
+ case XGBE_AN_READY:
+ break;
+
+ case XGBE_AN_COMPLETE:
+ netif_dbg(pdata, link, pdata->netdev,
+ "Auto negotiation successful\n");
+ break;
+
+ case XGBE_AN_NO_LINK:
+ break;
+
+ default:
+ pdata->an_state = XGBE_AN_ERROR;
+ }
+
+ if (pdata->an_state == XGBE_AN_ERROR) {
+ netdev_err(pdata->netdev,
+ "error during auto-negotiation, state=%u\n",
+ cur_state);
+
+ pdata->an_int = 0;
+ xgbe_an37_clear_interrupts(pdata);
+ }
+
+ if (pdata->an_state >= XGBE_AN_COMPLETE) {
+ pdata->an_result = pdata->an_state;
+ pdata->an_state = XGBE_AN_READY;
+
+ netif_dbg(pdata, link, pdata->netdev, "CL37 AN result: %s\n",
+ xgbe_state_as_string(pdata->an_result));
+ }
+
+ xgbe_an37_enable_interrupts(pdata);
+}
+
static void xgbe_an73_state_machine(struct xgbe_prv_data *pdata)
{
enum xgbe_an cur_state = pdata->an_state;
@@ -574,8 +752,6 @@ static void xgbe_an73_state_machine(struct xgbe_prv_data *pdata)
pdata->an_state = XGBE_AN_ERROR;
}
- pdata->an_result = pdata->an_state;
-
again:
netif_dbg(pdata, link, pdata->netdev, "CL73 AN %s\n",
xgbe_state_as_string(pdata->an_state));
@@ -656,6 +832,10 @@ static void xgbe_an_state_machine(struct work_struct *work)
case XGBE_AN_MODE_CL73:
xgbe_an73_state_machine(pdata);
break;
+ case XGBE_AN_MODE_CL37:
+ case XGBE_AN_MODE_CL37_SGMII:
+ xgbe_an37_state_machine(pdata);
+ break;
default:
break;
}
@@ -663,6 +843,50 @@ static void xgbe_an_state_machine(struct work_struct *work)
mutex_unlock(&pdata->an_mutex);
}
+static void xgbe_an37_init(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ /* Set up Advertisement register */
+ reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_ADVERTISE);
+ if (pdata->phy.advertising & ADVERTISED_Pause)
+ reg |= 0x100;
+ else
+ reg &= ~0x100;
+
+ if (pdata->phy.advertising & ADVERTISED_Asym_Pause)
+ reg |= 0x80;
+ else
+ reg &= ~0x80;
+
+ /* Full duplex, but not half */
+ reg |= XGBE_AN_CL37_FD_MASK;
+ reg &= ~XGBE_AN_CL37_HD_MASK;
+
+ XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_ADVERTISE, reg);
+
+ /* Set up the Control register */
+ reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_CTRL);
+ reg &= XGBE_AN_CL37_TX_CONFIG_MASK;
+ reg &= XGBE_AN_CL37_PCS_MODE_MASK;
+
+ switch (pdata->an_mode) {
+ case XGBE_AN_MODE_CL37:
+ reg |= XGBE_AN_CL37_PCS_MODE_BASEX;
+ break;
+ case XGBE_AN_MODE_CL37_SGMII:
+ reg |= XGBE_AN_CL37_PCS_MODE_SGMII;
+ break;
+ default:
+ break;
+ }
+
+ XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_VEND2_AN_CTRL, reg);
+
+ netif_dbg(pdata, link, pdata->netdev, "CL37 AN (%s) initialized\n",
+ (pdata->an_mode == XGBE_AN_MODE_CL37) ? "BaseX" : "SGMII");
+}
+
static void xgbe_an73_init(struct xgbe_prv_data *pdata)
{
unsigned int reg;
@@ -719,6 +943,10 @@ static void xgbe_an_init(struct xgbe_prv_data *pdata)
case XGBE_AN_MODE_CL73:
xgbe_an73_init(pdata);
break;
+ case XGBE_AN_MODE_CL37:
+ case XGBE_AN_MODE_CL37_SGMII:
+ xgbe_an37_init(pdata);
+ break;
default:
break;
}
@@ -865,10 +1093,10 @@ static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
}
/* Disable and stop any in progress auto-negotiation */
- xgbe_an_disable(pdata);
+ xgbe_an_disable_all(pdata);
/* Clear any auto-negotitation interrupts */
- xgbe_an73_clear_interrupts(pdata);
+ xgbe_an_clear_interrupts_all(pdata);
pdata->an_result = XGBE_AN_READY;
pdata->an_state = XGBE_AN_READY;
@@ -1007,7 +1235,7 @@ static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
pdata->phy_started = 0;
/* Disable auto-negotiation */
- xgbe_an_disable(pdata);
+ xgbe_an_disable_all(pdata);
devm_free_irq(pdata->dev, pdata->an_irq, pdata);
@@ -1078,10 +1306,10 @@ static int xgbe_phy_reset(struct xgbe_prv_data *pdata)
return ret;
/* Disable auto-negotiation for now */
- xgbe_an_disable(pdata);
+ xgbe_an_disable_all(pdata);
/* Clear auto-negotiation interrupts */
- xgbe_an73_clear_interrupts(pdata);
+ xgbe_an_clear_interrupts_all(pdata);
return 0;
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index d90ecbc..8cb4f20 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -261,7 +261,13 @@
/* Auto-negotiation */
#define XGBE_AN_MS_TIMEOUT 500
-#define XGBE_LINK_TIMEOUT 10
+#define XGBE_LINK_TIMEOUT 5
+
+#define XGBE_SGMII_AN_LINK_STATUS BIT(1)
+#define XGBE_SGMII_AN_LINK_SPEED (BIT(2) | BIT(3))
+#define XGBE_SGMII_AN_LINK_SPEED_100 0x04
+#define XGBE_SGMII_AN_LINK_SPEED_1000 0x08
+#define XGBE_SGMII_AN_LINK_DUPLEX BIT(4)
struct xgbe_prv_data;
@@ -467,6 +473,8 @@ enum xgbe_speed {
enum xgbe_an_mode {
XGBE_AN_MODE_CL73 = 0,
+ XGBE_AN_MODE_CL37,
+ XGBE_AN_MODE_CL37_SGMII,
XGBE_AN_MODE_NONE,
};
@@ -961,6 +969,7 @@ struct xgbe_prv_data {
/* Auto-negotiation state machine support */
unsigned int an_int;
+ unsigned int an_status;
struct mutex an_mutex;
enum xgbe_an an_result;
enum xgbe_an an_state;
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 07/10] amd-xgbe: Prepare for a new PCS register access method
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (5 preceding siblings ...)
2016-11-03 18:18 ` [PATCH net-next v1 06/10] amd-xgbe: Add support for clause 37 auto-negotiation Tom Lendacky
@ 2016-11-03 18:18 ` Tom Lendacky
2016-11-03 18:19 ` [PATCH net-next v1 08/10] amd-xgbe: Support for 64-bit management counter registers Tom Lendacky
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:18 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Prepare the code to be able to support accessing of the PCS registers
in a new way, while maintaining the current access method. Provide a
version specific field that indicates the method to use.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-common.h | 21 +++--
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 107 +++++++++++++++++++++++++--
drivers/net/ethernet/amd/xgbe/xgbe-main.c | 1
drivers/net/ethernet/amd/xgbe/xgbe.h | 9 ++
4 files changed, 119 insertions(+), 19 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index 8bcf4ef..6c40915 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -852,14 +852,9 @@
#define MTL_TSA_SP 0x00
#define MTL_TSA_ETS 0x02
-/* PCS MMD select register offset
- * The MMD select register is used for accessing PCS registers
- * when the underlying APB3 interface is using indirect addressing.
- * Indirect addressing requires accessing registers in two phases,
- * an address phase and a data phase. The address phases requires
- * writing an address selection value to the MMD select regiesters.
- */
-#define PCS_MMD_SELECT 0xff
+/* PCS register offsets */
+#define PCS_V1_WINDOW_SELECT 0x03fc
+#define PCS_V2_WINDOW_SELECT 0x9064
/* SerDes integration register offsets */
#define SIR0_KR_RT_1 0x002c
@@ -1241,12 +1236,18 @@
/* Macros for building, reading or writing register values or bits
* within the register values of XPCS registers.
*/
-#define XPCS_IOWRITE(_pdata, _off, _val) \
+#define XPCS32_IOWRITE(_pdata, _off, _val) \
iowrite32(_val, (_pdata)->xpcs_regs + (_off))
-#define XPCS_IOREAD(_pdata, _off) \
+#define XPCS32_IOREAD(_pdata, _off) \
ioread32((_pdata)->xpcs_regs + (_off))
+#define XPCS16_IOWRITE(_pdata, _off, _val) \
+ iowrite16(_val, (_pdata)->xpcs_regs + (_off))
+
+#define XPCS16_IOREAD(_pdata, _off) \
+ ioread16((_pdata)->xpcs_regs + (_off))
+
/* Macros for building, reading or writing register values or bits
* within the register values of SerDes integration registers.
*/
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index 75c3df1..b8a04e7 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -1026,8 +1026,71 @@ static int xgbe_config_rx_mode(struct xgbe_prv_data *pdata)
return 0;
}
-static int xgbe_read_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
- int mmd_reg)
+static int xgbe_read_mmd_regs_v2(struct xgbe_prv_data *pdata, int prtad,
+ int mmd_reg)
+{
+ unsigned long flags;
+ unsigned int mmd_address, index, offset;
+ int mmd_data;
+
+ if (mmd_reg & MII_ADDR_C45)
+ mmd_address = mmd_reg & ~MII_ADDR_C45;
+ else
+ mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
+
+ /* The PCS registers are accessed using mmio. The underlying
+ * management interface uses indirect addressing to access the MMD
+ * register sets. This requires accessing of the PCS register in two
+ * phases, an address phase and a data phase.
+ *
+ * The mmio interface is based on 16-bit offsets and values. All
+ * register offsets must therefore be adjusted by left shifting the
+ * offset 1 bit and reading 16 bits of data.
+ */
+ mmd_address <<= 1;
+ index = mmd_address & ~pdata->xpcs_window_mask;
+ offset = pdata->xpcs_window + (mmd_address & pdata->xpcs_window_mask);
+
+ spin_lock_irqsave(&pdata->xpcs_lock, flags);
+ XPCS32_IOWRITE(pdata, PCS_V2_WINDOW_SELECT, index);
+ mmd_data = XPCS16_IOREAD(pdata, offset);
+ spin_unlock_irqrestore(&pdata->xpcs_lock, flags);
+
+ return mmd_data;
+}
+
+static void xgbe_write_mmd_regs_v2(struct xgbe_prv_data *pdata, int prtad,
+ int mmd_reg, int mmd_data)
+{
+ unsigned long flags;
+ unsigned int mmd_address, index, offset;
+
+ if (mmd_reg & MII_ADDR_C45)
+ mmd_address = mmd_reg & ~MII_ADDR_C45;
+ else
+ mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
+
+ /* The PCS registers are accessed using mmio. The underlying
+ * management interface uses indirect addressing to access the MMD
+ * register sets. This requires accessing of the PCS register in two
+ * phases, an address phase and a data phase.
+ *
+ * The mmio interface is based on 16-bit offsets and values. All
+ * register offsets must therefore be adjusted by left shifting the
+ * offset 1 bit and writing 16 bits of data.
+ */
+ mmd_address <<= 1;
+ index = mmd_address & ~pdata->xpcs_window_mask;
+ offset = pdata->xpcs_window + (mmd_address & pdata->xpcs_window_mask);
+
+ spin_lock_irqsave(&pdata->xpcs_lock, flags);
+ XPCS32_IOWRITE(pdata, PCS_V2_WINDOW_SELECT, index);
+ XPCS16_IOWRITE(pdata, offset, mmd_data);
+ spin_unlock_irqrestore(&pdata->xpcs_lock, flags);
+}
+
+static int xgbe_read_mmd_regs_v1(struct xgbe_prv_data *pdata, int prtad,
+ int mmd_reg)
{
unsigned long flags;
unsigned int mmd_address;
@@ -1048,15 +1111,15 @@ static int xgbe_read_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
* offset 2 bits and reading 32 bits of data.
*/
spin_lock_irqsave(&pdata->xpcs_lock, flags);
- XPCS_IOWRITE(pdata, PCS_MMD_SELECT << 2, mmd_address >> 8);
- mmd_data = XPCS_IOREAD(pdata, (mmd_address & 0xff) << 2);
+ XPCS32_IOWRITE(pdata, PCS_V1_WINDOW_SELECT, mmd_address >> 8);
+ mmd_data = XPCS32_IOREAD(pdata, (mmd_address & 0xff) << 2);
spin_unlock_irqrestore(&pdata->xpcs_lock, flags);
return mmd_data;
}
-static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
- int mmd_reg, int mmd_data)
+static void xgbe_write_mmd_regs_v1(struct xgbe_prv_data *pdata, int prtad,
+ int mmd_reg, int mmd_data)
{
unsigned int mmd_address;
unsigned long flags;
@@ -1073,14 +1136,40 @@ static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
*
* The mmio interface is based on 32-bit offsets and values. All
* register offsets must therefore be adjusted by left shifting the
- * offset 2 bits and reading 32 bits of data.
+ * offset 2 bits and writing 32 bits of data.
*/
spin_lock_irqsave(&pdata->xpcs_lock, flags);
- XPCS_IOWRITE(pdata, PCS_MMD_SELECT << 2, mmd_address >> 8);
- XPCS_IOWRITE(pdata, (mmd_address & 0xff) << 2, mmd_data);
+ XPCS32_IOWRITE(pdata, PCS_V1_WINDOW_SELECT, mmd_address >> 8);
+ XPCS32_IOWRITE(pdata, (mmd_address & 0xff) << 2, mmd_data);
spin_unlock_irqrestore(&pdata->xpcs_lock, flags);
}
+static int xgbe_read_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
+ int mmd_reg)
+{
+ switch (pdata->vdata->xpcs_access) {
+ case XGBE_XPCS_ACCESS_V1:
+ return xgbe_read_mmd_regs_v1(pdata, prtad, mmd_reg);
+
+ case XGBE_XPCS_ACCESS_V2:
+ default:
+ return xgbe_read_mmd_regs_v2(pdata, prtad, mmd_reg);
+ }
+}
+
+static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
+ int mmd_reg, int mmd_data)
+{
+ switch (pdata->vdata->xpcs_access) {
+ case XGBE_XPCS_ACCESS_V1:
+ return xgbe_write_mmd_regs_v1(pdata, prtad, mmd_reg, mmd_data);
+
+ case XGBE_XPCS_ACCESS_V2:
+ default:
+ return xgbe_write_mmd_regs_v2(pdata, prtad, mmd_reg, mmd_data);
+ }
+}
+
static int xgbe_tx_complete(struct xgbe_ring_desc *rdesc)
{
return !XGMAC_GET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN);
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index 38c5985..d9864f0 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -785,6 +785,7 @@ static int xgbe_resume(struct device *dev)
static const struct xgbe_version_data xgbe_v1 = {
.init_function_ptrs_phy_impl = xgbe_init_function_ptrs_phy_v1,
+ .xpcs_access = XGBE_XPCS_ACCESS_V1,
};
#ifdef CONFIG_ACPI
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 8cb4f20..160b498 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -471,6 +471,11 @@ enum xgbe_speed {
XGBE_SPEEDS,
};
+enum xgbe_xpcs_access {
+ XGBE_XPCS_ACCESS_V1 = 0,
+ XGBE_XPCS_ACCESS_V2,
+};
+
enum xgbe_an_mode {
XGBE_AN_MODE_CL73 = 0,
XGBE_AN_MODE_CL37,
@@ -798,6 +803,7 @@ struct xgbe_hw_features {
struct xgbe_version_data {
void (*init_function_ptrs_phy_impl)(struct xgbe_phy_if *);
+ enum xgbe_xpcs_access xpcs_access;
};
struct xgbe_prv_data {
@@ -826,6 +832,9 @@ struct xgbe_prv_data {
/* XPCS indirect addressing lock */
spinlock_t xpcs_lock;
+ unsigned int xpcs_window;
+ unsigned int xpcs_window_size;
+ unsigned int xpcs_window_mask;
/* RSS addressing mutex */
struct mutex rss_mutex;
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 08/10] amd-xgbe: Support for 64-bit management counter registers
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (6 preceding siblings ...)
2016-11-03 18:18 ` [PATCH net-next v1 07/10] amd-xgbe: Prepare for a new PCS register access method Tom Lendacky
@ 2016-11-03 18:19 ` Tom Lendacky
2016-11-03 18:19 ` [PATCH net-next v1 09/10] amd-xgbe: Update how to determine DMA channel status Tom Lendacky
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:19 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Add support for reading all management counter registers as 64-bit
values. The indication of whether to read the high 32-bits to form
a 64-bit value is indicated in the version data.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 36 ++++++++++++++++++++++--------
drivers/net/ethernet/amd/xgbe/xgbe.h | 1 +
2 files changed, 27 insertions(+), 10 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index b8a04e7..fbd60ee 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -2588,17 +2588,33 @@ static u64 xgbe_mmc_read(struct xgbe_prv_data *pdata, unsigned int reg_lo)
bool read_hi;
u64 val;
- switch (reg_lo) {
- /* These registers are always 64 bit */
- case MMC_TXOCTETCOUNT_GB_LO:
- case MMC_TXOCTETCOUNT_G_LO:
- case MMC_RXOCTETCOUNT_GB_LO:
- case MMC_RXOCTETCOUNT_G_LO:
- read_hi = true;
- break;
+ if (pdata->vdata->mmc_64bit) {
+ switch (reg_lo) {
+ /* These registers are always 32 bit */
+ case MMC_RXRUNTERROR:
+ case MMC_RXJABBERERROR:
+ case MMC_RXUNDERSIZE_G:
+ case MMC_RXOVERSIZE_G:
+ case MMC_RXWATCHDOGERROR:
+ read_hi = false;
+ break;
- default:
- read_hi = false;
+ default:
+ read_hi = true;
+ }
+ } else {
+ switch (reg_lo) {
+ /* These registers are always 64 bit */
+ case MMC_TXOCTETCOUNT_GB_LO:
+ case MMC_TXOCTETCOUNT_G_LO:
+ case MMC_RXOCTETCOUNT_GB_LO:
+ case MMC_RXOCTETCOUNT_G_LO:
+ read_hi = true;
+ break;
+
+ default:
+ read_hi = false;
+ }
}
val = XGMAC_IOREAD(pdata, reg_lo);
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 160b498..7cbf91b 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -804,6 +804,7 @@ struct xgbe_hw_features {
struct xgbe_version_data {
void (*init_function_ptrs_phy_impl)(struct xgbe_phy_if *);
enum xgbe_xpcs_access xpcs_access;
+ unsigned int mmc_64bit;
};
struct xgbe_prv_data {
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 09/10] amd-xgbe: Update how to determine DMA channel status
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (7 preceding siblings ...)
2016-11-03 18:19 ` [PATCH net-next v1 08/10] amd-xgbe: Support for 64-bit management counter registers Tom Lendacky
@ 2016-11-03 18:19 ` Tom Lendacky
2016-11-03 18:19 ` [PATCH net-next v1 10/10] amd-xgbe: Prepare for supporting PCI devices Tom Lendacky
2016-11-04 18:52 ` [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 David Miller
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:19 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Tx and Rx DMA channel status determiniation is different depending on the
version of the hardware. Update the channel status processing code to
account for the change. Also, reduce the timeout value used when stopping
the channels.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/xgbe-common.h | 4 ++
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 58 ++++++++++++++++++---------
drivers/net/ethernet/amd/xgbe/xgbe.h | 2 -
3 files changed, 43 insertions(+), 21 deletions(-)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index 6c40915..8036ee5 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -790,6 +790,10 @@
#define MTL_Q_RQOMR_RSF_WIDTH 1
#define MTL_Q_RQOMR_RTC_INDEX 0
#define MTL_Q_RQOMR_RTC_WIDTH 2
+#define MTL_Q_TQDR_TRCSTS_INDEX 1
+#define MTL_Q_TQDR_TRCSTS_WIDTH 2
+#define MTL_Q_TQDR_TXQSTS_INDEX 4
+#define MTL_Q_TQDR_TXQSTS_WIDTH 1
#define MTL_Q_TQOMR_FTQ_INDEX 0
#define MTL_Q_TQOMR_FTQ_WIDTH 1
#define MTL_Q_TQOMR_Q2TCMAP_INDEX 8
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index fbd60ee..0a7ab63 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -2944,20 +2944,48 @@ static void xgbe_config_mmc(struct xgbe_prv_data *pdata)
XGMAC_IOWRITE_BITS(pdata, MMC_CR, CR, 1);
}
+static void xgbe_txq_prepare_tx_stop(struct xgbe_prv_data *pdata,
+ unsigned int queue)
+{
+ unsigned int tx_status;
+ unsigned long tx_timeout;
+
+ /* The Tx engine cannot be stopped if it is actively processing
+ * packets. Wait for the Tx queue to empty the Tx fifo. Don't
+ * wait forever though...
+ */
+ tx_timeout = jiffies + (XGBE_DMA_STOP_TIMEOUT * HZ);
+ while (time_before(jiffies, tx_timeout)) {
+ tx_status = XGMAC_MTL_IOREAD(pdata, queue, MTL_Q_TQDR);
+ if ((XGMAC_GET_BITS(tx_status, MTL_Q_TQDR, TRCSTS) != 1) &&
+ (XGMAC_GET_BITS(tx_status, MTL_Q_TQDR, TXQSTS) == 0))
+ break;
+
+ usleep_range(500, 1000);
+ }
+
+ if (!time_before(jiffies, tx_timeout))
+ netdev_info(pdata->netdev,
+ "timed out waiting for Tx queue %u to empty\n",
+ queue);
+}
+
static void xgbe_prepare_tx_stop(struct xgbe_prv_data *pdata,
- struct xgbe_channel *channel)
+ unsigned int queue)
{
unsigned int tx_dsr, tx_pos, tx_qidx;
unsigned int tx_status;
unsigned long tx_timeout;
+ if (XGMAC_GET_BITS(pdata->hw_feat.version, MAC_VR, SNPSVER) > 0x20)
+ return xgbe_txq_prepare_tx_stop(pdata, queue);
+
/* Calculate the status register to read and the position within */
- if (channel->queue_index < DMA_DSRX_FIRST_QUEUE) {
+ if (queue < DMA_DSRX_FIRST_QUEUE) {
tx_dsr = DMA_DSR0;
- tx_pos = (channel->queue_index * DMA_DSR_Q_WIDTH) +
- DMA_DSR0_TPS_START;
+ tx_pos = (queue * DMA_DSR_Q_WIDTH) + DMA_DSR0_TPS_START;
} else {
- tx_qidx = channel->queue_index - DMA_DSRX_FIRST_QUEUE;
+ tx_qidx = queue - DMA_DSRX_FIRST_QUEUE;
tx_dsr = DMA_DSR1 + ((tx_qidx / DMA_DSRX_QPR) * DMA_DSRX_INC);
tx_pos = ((tx_qidx % DMA_DSRX_QPR) * DMA_DSR_Q_WIDTH) +
@@ -2982,7 +3010,7 @@ static void xgbe_prepare_tx_stop(struct xgbe_prv_data *pdata,
if (!time_before(jiffies, tx_timeout))
netdev_info(pdata->netdev,
"timed out waiting for Tx DMA channel %u to stop\n",
- channel->queue_index);
+ queue);
}
static void xgbe_enable_tx(struct xgbe_prv_data *pdata)
@@ -3014,13 +3042,8 @@ static void xgbe_disable_tx(struct xgbe_prv_data *pdata)
unsigned int i;
/* Prepare for Tx DMA channel stop */
- channel = pdata->channel;
- for (i = 0; i < pdata->channel_count; i++, channel++) {
- if (!channel->tx_ring)
- break;
-
- xgbe_prepare_tx_stop(pdata, channel);
- }
+ for (i = 0; i < pdata->tx_q_count; i++)
+ xgbe_prepare_tx_stop(pdata, i);
/* Disable MAC Tx */
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 0);
@@ -3144,13 +3167,8 @@ static void xgbe_powerdown_tx(struct xgbe_prv_data *pdata)
unsigned int i;
/* Prepare for Tx DMA channel stop */
- channel = pdata->channel;
- for (i = 0; i < pdata->channel_count; i++, channel++) {
- if (!channel->tx_ring)
- break;
-
- xgbe_prepare_tx_stop(pdata, channel);
- }
+ for (i = 0; i < pdata->tx_q_count; i++)
+ xgbe_prepare_tx_stop(pdata, i);
/* Disable MAC Tx */
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, TE, 0);
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 7cbf91b..d5cae15 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -159,7 +159,7 @@
#define XGBE_MAX_DMA_CHANNELS 16
#define XGBE_MAX_QUEUES 16
#define XGBE_PRIORITY_QUEUES 8
-#define XGBE_DMA_STOP_TIMEOUT 5
+#define XGBE_DMA_STOP_TIMEOUT 1
/* DMA cache settings - Outer sharable, write-back, write-allocate */
#define XGBE_DMA_OS_AXDOMAIN 0x2
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH net-next v1 10/10] amd-xgbe: Prepare for supporting PCI devices
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (8 preceding siblings ...)
2016-11-03 18:19 ` [PATCH net-next v1 09/10] amd-xgbe: Update how to determine DMA channel status Tom Lendacky
@ 2016-11-03 18:19 ` Tom Lendacky
2016-11-04 18:52 ` [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 David Miller
10 siblings, 0 replies; 12+ messages in thread
From: Tom Lendacky @ 2016-11-03 18:19 UTC (permalink / raw)
To: netdev; +Cc: David Miller
Update the driver framework to separate out platform/ACPI specific code
from general code during device initialization. This will allow for the
introduction of PCI device support.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
drivers/net/ethernet/amd/xgbe/Makefile | 3
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 16 -
drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 22 -
drivers/net/ethernet/amd/xgbe/xgbe-main.c | 569 ++++-------------------
drivers/net/ethernet/amd/xgbe/xgbe-platform.c | 632 +++++++++++++++++++++++++
drivers/net/ethernet/amd/xgbe/xgbe.h | 23 +
6 files changed, 755 insertions(+), 510 deletions(-)
create mode 100644 drivers/net/ethernet/amd/xgbe/xgbe-platform.c
diff --git a/drivers/net/ethernet/amd/xgbe/Makefile b/drivers/net/ethernet/amd/xgbe/Makefile
index 60b4ae2..217d59e 100644
--- a/drivers/net/ethernet/amd/xgbe/Makefile
+++ b/drivers/net/ethernet/amd/xgbe/Makefile
@@ -3,7 +3,8 @@ obj-$(CONFIG_AMD_XGBE) += amd-xgbe.o
amd-xgbe-objs := xgbe-main.o xgbe-drv.o xgbe-dev.o \
xgbe-desc.o xgbe-ethtool.o xgbe-mdio.o \
xgbe-ptp.o \
- xgbe-phy-v1.o
+ xgbe-phy-v1.o \
+ xgbe-platform.o
amd-xgbe-$(CONFIG_AMD_XGBE_DCB) += xgbe-dcb.o
amd-xgbe-$(CONFIG_DEBUG_FS) += xgbe-debugfs.o
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index 0a7ab63..9037319 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -2088,24 +2088,16 @@ static void xgbe_config_flow_control_threshold(struct xgbe_prv_data *pdata)
static unsigned int xgbe_get_tx_fifo_size(struct xgbe_prv_data *pdata)
{
- unsigned int fifo_size;
-
- /* Calculate the configured fifo size */
- fifo_size = 1 << (pdata->hw_feat.tx_fifo_size + 7);
-
/* The configured value may not be the actual amount of fifo RAM */
- return min_t(unsigned int, XGMAC_FIFO_TX_MAX, fifo_size);
+ return min_t(unsigned int, pdata->tx_max_fifo_size,
+ pdata->hw_feat.tx_fifo_size);
}
static unsigned int xgbe_get_rx_fifo_size(struct xgbe_prv_data *pdata)
{
- unsigned int fifo_size;
-
- /* Calculate the configured fifo size */
- fifo_size = 1 << (pdata->hw_feat.rx_fifo_size + 7);
-
/* The configured value may not be the actual amount of fifo RAM */
- return min_t(unsigned int, XGMAC_FIFO_RX_MAX, fifo_size);
+ return min_t(unsigned int, pdata->rx_max_fifo_size,
+ pdata->hw_feat.rx_fifo_size);
}
static void xgbe_calculate_equal_fifo(unsigned int fifo_size,
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index dd166a0..a43e9303 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -114,7 +114,6 @@
* THE POSSIBILITY OF SUCH DAMAGE.
*/
-#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/tcp.h>
#include <linux/if_vlan.h>
@@ -160,18 +159,8 @@ static int xgbe_alloc_channels(struct xgbe_prv_data *pdata)
channel->dma_regs = pdata->xgmac_regs + DMA_CH_BASE +
(DMA_CH_INC * i);
- if (pdata->per_channel_irq) {
- /* Get the DMA interrupt (offset 1) */
- ret = platform_get_irq(pdata->pdev, i + 1);
- if (ret < 0) {
- netdev_err(pdata->netdev,
- "platform_get_irq %u failed\n",
- i + 1);
- goto err_irq;
- }
-
- channel->dma_irq = ret;
- }
+ if (pdata->per_channel_irq)
+ channel->dma_irq = pdata->channel_irq[i];
if (i < pdata->tx_ring_count) {
spin_lock_init(&tx_ring->lock);
@@ -194,9 +183,6 @@ static int xgbe_alloc_channels(struct xgbe_prv_data *pdata)
return 0;
-err_irq:
- kfree(rx_ring);
-
err_rx_ring:
kfree(tx_ring);
@@ -590,6 +576,10 @@ void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata)
hw_feat->tx_ch_cnt++;
hw_feat->tc_cnt++;
+ /* Translate the fifo sizes into actual numbers */
+ hw_feat->rx_fifo_size = 1 << (hw_feat->rx_fifo_size + 7);
+ hw_feat->tx_fifo_size = 1 << (hw_feat->tx_fifo_size + 7);
+
DBGPR("<--xgbe_get_all_hw_features\n");
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index d9864f0..c7187fc 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -116,20 +116,10 @@
#include <linux/module.h>
#include <linux/device.h>
-#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_net.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include <linux/of_device.h>
-#include <linux/clk.h>
-#include <linux/property.h>
-#include <linux/acpi.h>
-#include <linux/mdio.h>
#include "xgbe.h"
#include "xgbe-common.h"
@@ -176,196 +166,21 @@ static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
pdata->vdata->init_function_ptrs_phy_impl(&pdata->phy_if);
}
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id xgbe_acpi_match[];
-
-static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
-{
- const struct acpi_device_id *id;
-
- id = acpi_match_device(xgbe_acpi_match, pdata->dev);
-
- return id ? (struct xgbe_version_data *)id->driver_data : NULL;
-}
-
-static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
-{
- struct device *dev = pdata->dev;
- u32 property;
- int ret;
-
- /* Obtain the system clock setting */
- ret = device_property_read_u32(dev, XGBE_ACPI_DMA_FREQ, &property);
- if (ret) {
- dev_err(dev, "unable to obtain %s property\n",
- XGBE_ACPI_DMA_FREQ);
- return ret;
- }
- pdata->sysclk_rate = property;
-
- /* Obtain the PTP clock setting */
- ret = device_property_read_u32(dev, XGBE_ACPI_PTP_FREQ, &property);
- if (ret) {
- dev_err(dev, "unable to obtain %s property\n",
- XGBE_ACPI_PTP_FREQ);
- return ret;
- }
- pdata->ptpclk_rate = property;
-
- return 0;
-}
-#else /* CONFIG_ACPI */
-static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
-{
- return NULL;
-}
-
-static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
-{
- return -EINVAL;
-}
-#endif /* CONFIG_ACPI */
-
-#ifdef CONFIG_OF
-static const struct of_device_id xgbe_of_match[];
-
-static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
-{
- const struct of_device_id *id;
-
- id = of_match_device(xgbe_of_match, pdata->dev);
-
- return id ? (struct xgbe_version_data *)id->data : NULL;
-}
-
-static int xgbe_of_support(struct xgbe_prv_data *pdata)
-{
- struct device *dev = pdata->dev;
-
- /* Obtain the system clock setting */
- pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK);
- if (IS_ERR(pdata->sysclk)) {
- dev_err(dev, "dma devm_clk_get failed\n");
- return PTR_ERR(pdata->sysclk);
- }
- pdata->sysclk_rate = clk_get_rate(pdata->sysclk);
-
- /* Obtain the PTP clock setting */
- pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK);
- if (IS_ERR(pdata->ptpclk)) {
- dev_err(dev, "ptp devm_clk_get failed\n");
- return PTR_ERR(pdata->ptpclk);
- }
- pdata->ptpclk_rate = clk_get_rate(pdata->ptpclk);
-
- return 0;
-}
-
-static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
-{
- struct device *dev = pdata->dev;
- struct device_node *phy_node;
- struct platform_device *phy_pdev;
-
- phy_node = of_parse_phandle(dev->of_node, "phy-handle", 0);
- if (phy_node) {
- /* Old style device tree:
- * The XGBE and PHY resources are separate
- */
- phy_pdev = of_find_device_by_node(phy_node);
- of_node_put(phy_node);
- } else {
- /* New style device tree:
- * The XGBE and PHY resources are grouped together with
- * the PHY resources listed last
- */
- get_device(dev);
- phy_pdev = pdata->pdev;
- }
-
- return phy_pdev;
-}
-#else /* CONFIG_OF */
-static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
-{
- return NULL;
-}
-
-static int xgbe_of_support(struct xgbe_prv_data *pdata)
-{
- return -EINVAL;
-}
-
-static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
-{
- return NULL;
-}
-#endif /* CONFIG_OF */
-
-static unsigned int xgbe_resource_count(struct platform_device *pdev,
- unsigned int type)
-{
- unsigned int count;
- int i;
-
- for (i = 0, count = 0; i < pdev->num_resources; i++) {
- struct resource *res = &pdev->resource[i];
-
- if (type == resource_type(res))
- count++;
- }
-
- return count;
-}
-
-static struct platform_device *xgbe_get_phy_pdev(struct xgbe_prv_data *pdata)
-{
- struct platform_device *phy_pdev;
-
- if (pdata->use_acpi) {
- get_device(pdata->dev);
- phy_pdev = pdata->pdev;
- } else {
- phy_pdev = xgbe_of_get_phy_pdev(pdata);
- }
-
- return phy_pdev;
-}
-
-static struct xgbe_version_data *xgbe_get_vdata(struct xgbe_prv_data *pdata)
-{
- return pdata->use_acpi ? xgbe_acpi_vdata(pdata)
- : xgbe_of_vdata(pdata);
-}
-
-static int xgbe_probe(struct platform_device *pdev)
+struct xgbe_prv_data *xgbe_alloc_pdata(struct device *dev)
{
struct xgbe_prv_data *pdata;
struct net_device *netdev;
- struct device *dev = &pdev->dev;
- struct platform_device *phy_pdev;
- struct resource *res;
- const char *phy_mode;
- unsigned int i, phy_memnum, phy_irqnum;
- enum dev_dma_attr attr;
- int ret;
-
- DBGPR("--> xgbe_probe\n");
netdev = alloc_etherdev_mq(sizeof(struct xgbe_prv_data),
XGBE_MAX_DMA_CHANNELS);
if (!netdev) {
- dev_err(dev, "alloc_etherdev failed\n");
- ret = -ENOMEM;
- goto err_alloc;
+ dev_err(dev, "alloc_etherdev_mq failed\n");
+ return ERR_PTR(-ENOMEM);
}
SET_NETDEV_DEV(netdev, dev);
pdata = netdev_priv(netdev);
pdata->netdev = netdev;
- pdata->pdev = pdev;
- pdata->adev = ACPI_COMPANION(dev);
pdata->dev = dev;
- platform_set_drvdata(pdev, netdev);
spin_lock_init(&pdata->lock);
spin_lock_init(&pdata->xpcs_lock);
@@ -376,186 +191,82 @@ static int xgbe_probe(struct platform_device *pdev)
set_bit(XGBE_DOWN, &pdata->dev_state);
- /* Check if we should use ACPI or DT */
- pdata->use_acpi = dev->of_node ? 0 : 1;
+ return pdata;
+}
- /* Get the version data */
- pdata->vdata = xgbe_get_vdata(pdata);
+void xgbe_free_pdata(struct xgbe_prv_data *pdata)
+{
+ struct net_device *netdev = pdata->netdev;
- phy_pdev = xgbe_get_phy_pdev(pdata);
- if (!phy_pdev) {
- dev_err(dev, "unable to obtain phy device\n");
- ret = -EINVAL;
- goto err_phydev;
- }
- pdata->phy_pdev = phy_pdev;
- pdata->phy_dev = &phy_pdev->dev;
-
- if (pdev == phy_pdev) {
- /* New style device tree or ACPI:
- * The XGBE and PHY resources are grouped together with
- * the PHY resources listed last
- */
- phy_memnum = xgbe_resource_count(pdev, IORESOURCE_MEM) - 3;
- phy_irqnum = xgbe_resource_count(pdev, IORESOURCE_IRQ) - 1;
- } else {
- /* Old style device tree:
- * The XGBE and PHY resources are separate
- */
- phy_memnum = 0;
- phy_irqnum = 0;
- }
+ free_netdev(netdev);
+}
- /* Set and validate the number of descriptors for a ring */
- BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_TX_DESC_CNT);
- pdata->tx_desc_count = XGBE_TX_DESC_CNT;
- if (pdata->tx_desc_count & (pdata->tx_desc_count - 1)) {
- dev_err(dev, "tx descriptor count (%d) is not valid\n",
- pdata->tx_desc_count);
- ret = -EINVAL;
- goto err_io;
- }
- BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_RX_DESC_CNT);
- pdata->rx_desc_count = XGBE_RX_DESC_CNT;
- if (pdata->rx_desc_count & (pdata->rx_desc_count - 1)) {
- dev_err(dev, "rx descriptor count (%d) is not valid\n",
- pdata->rx_desc_count);
- ret = -EINVAL;
- goto err_io;
- }
+void xgbe_set_counts(struct xgbe_prv_data *pdata)
+{
+ /* Set all the function pointers */
+ xgbe_init_all_fptrs(pdata);
- /* Obtain the mmio areas for the device */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- pdata->xgmac_regs = devm_ioremap_resource(dev, res);
- if (IS_ERR(pdata->xgmac_regs)) {
- dev_err(dev, "xgmac ioremap failed\n");
- ret = PTR_ERR(pdata->xgmac_regs);
- goto err_io;
- }
- if (netif_msg_probe(pdata))
- dev_dbg(dev, "xgmac_regs = %p\n", pdata->xgmac_regs);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- pdata->xpcs_regs = devm_ioremap_resource(dev, res);
- if (IS_ERR(pdata->xpcs_regs)) {
- dev_err(dev, "xpcs ioremap failed\n");
- ret = PTR_ERR(pdata->xpcs_regs);
- goto err_io;
- }
- if (netif_msg_probe(pdata))
- dev_dbg(dev, "xpcs_regs = %p\n", pdata->xpcs_regs);
-
- res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
- pdata->rxtx_regs = devm_ioremap_resource(dev, res);
- if (IS_ERR(pdata->rxtx_regs)) {
- dev_err(dev, "rxtx ioremap failed\n");
- ret = PTR_ERR(pdata->rxtx_regs);
- goto err_io;
- }
- if (netif_msg_probe(pdata))
- dev_dbg(dev, "rxtx_regs = %p\n", pdata->rxtx_regs);
-
- res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
- pdata->sir0_regs = devm_ioremap_resource(dev, res);
- if (IS_ERR(pdata->sir0_regs)) {
- dev_err(dev, "sir0 ioremap failed\n");
- ret = PTR_ERR(pdata->sir0_regs);
- goto err_io;
- }
- if (netif_msg_probe(pdata))
- dev_dbg(dev, "sir0_regs = %p\n", pdata->sir0_regs);
-
- res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
- pdata->sir1_regs = devm_ioremap_resource(dev, res);
- if (IS_ERR(pdata->sir1_regs)) {
- dev_err(dev, "sir1 ioremap failed\n");
- ret = PTR_ERR(pdata->sir1_regs);
- goto err_io;
- }
- if (netif_msg_probe(pdata))
- dev_dbg(dev, "sir1_regs = %p\n", pdata->sir1_regs);
-
- /* Retrieve the MAC address */
- ret = device_property_read_u8_array(dev, XGBE_MAC_ADDR_PROPERTY,
- pdata->mac_addr,
- sizeof(pdata->mac_addr));
- if (ret || !is_valid_ether_addr(pdata->mac_addr)) {
- dev_err(dev, "invalid %s property\n", XGBE_MAC_ADDR_PROPERTY);
- if (!ret)
- ret = -EINVAL;
- goto err_io;
- }
+ /* Populate the hardware features */
+ xgbe_get_all_hw_features(pdata);
- /* Retrieve the PHY mode - it must be "xgmii" */
- ret = device_property_read_string(dev, XGBE_PHY_MODE_PROPERTY,
- &phy_mode);
- if (ret || strcmp(phy_mode, phy_modes(PHY_INTERFACE_MODE_XGMII))) {
- dev_err(dev, "invalid %s property\n", XGBE_PHY_MODE_PROPERTY);
- if (!ret)
- ret = -EINVAL;
- goto err_io;
- }
- pdata->phy_mode = PHY_INTERFACE_MODE_XGMII;
+ /* Set default max values if not provided */
+ if (!pdata->tx_max_channel_count)
+ pdata->tx_max_channel_count = pdata->hw_feat.tx_ch_cnt;
+ if (!pdata->rx_max_channel_count)
+ pdata->rx_max_channel_count = pdata->hw_feat.rx_ch_cnt;
- /* Check for per channel interrupt support */
- if (device_property_present(dev, XGBE_DMA_IRQS_PROPERTY))
- pdata->per_channel_irq = 1;
+ if (!pdata->tx_max_q_count)
+ pdata->tx_max_q_count = pdata->hw_feat.tx_q_cnt;
+ if (!pdata->rx_max_q_count)
+ pdata->rx_max_q_count = pdata->hw_feat.rx_q_cnt;
- /* Obtain device settings unique to ACPI/OF */
- if (pdata->use_acpi)
- ret = xgbe_acpi_support(pdata);
- else
- ret = xgbe_of_support(pdata);
- if (ret)
- goto err_io;
-
- /* Set the DMA coherency values */
- attr = device_get_dma_attr(dev);
- if (attr == DEV_DMA_NOT_SUPPORTED) {
- dev_err(dev, "DMA is not supported");
- ret = -ENODEV;
- goto err_io;
- }
- pdata->coherent = (attr == DEV_DMA_COHERENT);
- if (pdata->coherent) {
- pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;
- pdata->arcache = XGBE_DMA_OS_ARCACHE;
- pdata->awcache = XGBE_DMA_OS_AWCACHE;
- } else {
- pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN;
- pdata->arcache = XGBE_DMA_SYS_ARCACHE;
- pdata->awcache = XGBE_DMA_SYS_AWCACHE;
- }
+ /* Calculate the number of Tx and Rx rings to be created
+ * -Tx (DMA) Channels map 1-to-1 to Tx Queues so set
+ * the number of Tx queues to the number of Tx channels
+ * enabled
+ * -Rx (DMA) Channels do not map 1-to-1 so use the actual
+ * number of Rx queues or maximum allowed
+ */
+ pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(),
+ pdata->hw_feat.tx_ch_cnt);
+ pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count,
+ pdata->tx_max_channel_count);
+ pdata->tx_ring_count = min_t(unsigned int, pdata->tx_ring_count,
+ pdata->tx_max_q_count);
- /* Get the device interrupt */
- ret = platform_get_irq(pdev, 0);
- if (ret < 0) {
- dev_err(dev, "platform_get_irq 0 failed\n");
- goto err_io;
- }
- pdata->dev_irq = ret;
+ pdata->tx_q_count = pdata->tx_ring_count;
+
+ pdata->rx_ring_count = min_t(unsigned int,
+ netif_get_num_default_rss_queues(),
+ pdata->hw_feat.rx_ch_cnt);
+ pdata->rx_ring_count = min_t(unsigned int, pdata->rx_ring_count,
+ pdata->rx_max_channel_count);
+
+ pdata->rx_q_count = min_t(unsigned int, pdata->hw_feat.rx_q_cnt,
+ pdata->rx_max_q_count);
- /* Get the auto-negotiation interrupt */
- ret = platform_get_irq(phy_pdev, phy_irqnum++);
- if (ret < 0) {
- dev_err(dev, "platform_get_irq phy 0 failed\n");
- goto err_io;
+ if (netif_msg_probe(pdata)) {
+ dev_dbg(pdata->dev, "TX/RX DMA channel count = %u/%u\n",
+ pdata->tx_ring_count, pdata->rx_ring_count);
+ dev_dbg(pdata->dev, "TX/RX hardware queue count = %u/%u\n",
+ pdata->tx_q_count, pdata->rx_q_count);
}
- pdata->an_irq = ret;
+}
+
+int xgbe_config_netdev(struct xgbe_prv_data *pdata)
+{
+ struct net_device *netdev = pdata->netdev;
+ struct device *dev = pdata->dev;
+ unsigned int i;
+ int ret;
netdev->irq = pdata->dev_irq;
netdev->base_addr = (unsigned long)pdata->xgmac_regs;
memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
- /* Set all the function pointers */
- xgbe_init_all_fptrs(pdata);
-
/* Issue software reset to device */
pdata->hw_if.exit(pdata);
- /* Populate the hardware features */
- xgbe_get_all_hw_features(pdata);
-
/* Set default configuration data */
xgbe_default_config(pdata);
@@ -564,33 +275,33 @@ static int xgbe_probe(struct platform_device *pdev)
DMA_BIT_MASK(pdata->hw_feat.dma_width));
if (ret) {
dev_err(dev, "dma_set_mask_and_coherent failed\n");
- goto err_io;
+ return ret;
}
- /* Calculate the number of Tx and Rx rings to be created
- * -Tx (DMA) Channels map 1-to-1 to Tx Queues so set
- * the number of Tx queues to the number of Tx channels
- * enabled
- * -Rx (DMA) Channels do not map 1-to-1 so use the actual
- * number of Rx queues
- */
- pdata->tx_ring_count = min_t(unsigned int, num_online_cpus(),
- pdata->hw_feat.tx_ch_cnt);
- pdata->tx_q_count = pdata->tx_ring_count;
+ /* Set default max values if not provided */
+ if (!pdata->tx_max_fifo_size)
+ pdata->tx_max_fifo_size = pdata->hw_feat.tx_fifo_size;
+ if (!pdata->rx_max_fifo_size)
+ pdata->rx_max_fifo_size = pdata->hw_feat.rx_fifo_size;
+
+ /* Set and validate the number of descriptors for a ring */
+ BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_TX_DESC_CNT);
+ pdata->tx_desc_count = XGBE_TX_DESC_CNT;
+
+ BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_RX_DESC_CNT);
+ pdata->rx_desc_count = XGBE_RX_DESC_CNT;
+
+ /* Set the number of queues */
ret = netif_set_real_num_tx_queues(netdev, pdata->tx_ring_count);
if (ret) {
dev_err(dev, "error setting real tx queue count\n");
- goto err_io;
+ return ret;
}
- pdata->rx_ring_count = min_t(unsigned int,
- netif_get_num_default_rss_queues(),
- pdata->hw_feat.rx_ch_cnt);
- pdata->rx_q_count = pdata->hw_feat.rx_q_cnt;
ret = netif_set_real_num_rx_queues(netdev, pdata->rx_ring_count);
if (ret) {
dev_err(dev, "error setting real rx queue count\n");
- goto err_io;
+ return ret;
}
/* Initialize RSS hash key and lookup table */
@@ -607,7 +318,7 @@ static int xgbe_probe(struct platform_device *pdev)
/* Call MDIO/PHY initialization routine */
ret = pdata->phy_if.phy_init(pdata);
if (ret)
- goto err_io;
+ return ret;
/* Set device operations */
netdev->netdev_ops = xgbe_get_netdev_ops();
@@ -654,7 +365,7 @@ static int xgbe_probe(struct platform_device *pdev)
ret = register_netdev(netdev);
if (ret) {
dev_err(dev, "net device registration failed\n");
- goto err_io;
+ return ret;
}
/* Create the PHY/ANEG name based on netdev name */
@@ -682,10 +393,6 @@ static int xgbe_probe(struct platform_device *pdev)
xgbe_debugfs_init(pdata);
- netdev_notice(netdev, "net device enabled\n");
-
- DBGPR("<-- xgbe_probe\n");
-
return 0;
err_wq:
@@ -694,24 +401,12 @@ static int xgbe_probe(struct platform_device *pdev)
err_netdev:
unregister_netdev(netdev);
-err_io:
- platform_device_put(phy_pdev);
-
-err_phydev:
- free_netdev(netdev);
-
-err_alloc:
- dev_notice(dev, "net device not enabled\n");
-
return ret;
}
-static int xgbe_remove(struct platform_device *pdev)
+void xgbe_deconfig_netdev(struct xgbe_prv_data *pdata)
{
- struct net_device *netdev = platform_get_drvdata(pdev);
- struct xgbe_prv_data *pdata = netdev_priv(netdev);
-
- DBGPR("-->xgbe_remove\n");
+ struct net_device *netdev = pdata->netdev;
xgbe_debugfs_exit(pdata);
@@ -726,103 +421,23 @@ static int xgbe_remove(struct platform_device *pdev)
destroy_workqueue(pdata->dev_workqueue);
unregister_netdev(netdev);
-
- platform_device_put(pdata->phy_pdev);
-
- free_netdev(netdev);
-
- DBGPR("<--xgbe_remove\n");
-
- return 0;
}
-#ifdef CONFIG_PM
-static int xgbe_suspend(struct device *dev)
+static int __init xgbe_mod_init(void)
{
- struct net_device *netdev = dev_get_drvdata(dev);
- struct xgbe_prv_data *pdata = netdev_priv(netdev);
- int ret = 0;
-
- DBGPR("-->xgbe_suspend\n");
-
- if (netif_running(netdev))
- ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
-
- pdata->lpm_ctrl = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
- pdata->lpm_ctrl |= MDIO_CTRL1_LPOWER;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
+ int ret;
- DBGPR("<--xgbe_suspend\n");
+ ret = xgbe_platform_init();
+ if (ret)
+ return ret;
- return ret;
+ return 0;
}
-static int xgbe_resume(struct device *dev)
+static void __exit xgbe_mod_exit(void)
{
- struct net_device *netdev = dev_get_drvdata(dev);
- struct xgbe_prv_data *pdata = netdev_priv(netdev);
- int ret = 0;
-
- DBGPR("-->xgbe_resume\n");
-
- pdata->lpm_ctrl &= ~MDIO_CTRL1_LPOWER;
- XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
-
- if (netif_running(netdev)) {
- ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
-
- /* Schedule a restart in case the link or phy state changed
- * while we were powered down.
- */
- schedule_work(&pdata->restart_work);
- }
-
- DBGPR("<--xgbe_resume\n");
-
- return ret;
+ xgbe_platform_exit();
}
-#endif /* CONFIG_PM */
-
-static const struct xgbe_version_data xgbe_v1 = {
- .init_function_ptrs_phy_impl = xgbe_init_function_ptrs_phy_v1,
- .xpcs_access = XGBE_XPCS_ACCESS_V1,
-};
-
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id xgbe_acpi_match[] = {
- { .id = "AMDI8001",
- .driver_data = (kernel_ulong_t)&xgbe_v1 },
- {},
-};
-
-MODULE_DEVICE_TABLE(acpi, xgbe_acpi_match);
-#endif
-
-#ifdef CONFIG_OF
-static const struct of_device_id xgbe_of_match[] = {
- { .compatible = "amd,xgbe-seattle-v1a",
- .data = &xgbe_v1 },
- {},
-};
-
-MODULE_DEVICE_TABLE(of, xgbe_of_match);
-#endif
-
-static SIMPLE_DEV_PM_OPS(xgbe_pm_ops, xgbe_suspend, xgbe_resume);
-
-static struct platform_driver xgbe_driver = {
- .driver = {
- .name = "amd-xgbe",
-#ifdef CONFIG_ACPI
- .acpi_match_table = xgbe_acpi_match,
-#endif
-#ifdef CONFIG_OF
- .of_match_table = xgbe_of_match,
-#endif
- .pm = &xgbe_pm_ops,
- },
- .probe = xgbe_probe,
- .remove = xgbe_remove,
-};
-module_platform_driver(xgbe_driver);
+module_init(xgbe_mod_init);
+module_exit(xgbe_mod_exit);
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-platform.c b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
new file mode 100644
index 0000000..0edbcd5
--- /dev/null
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-platform.c
@@ -0,0 +1,632 @@
+/*
+ * AMD 10Gb Ethernet driver
+ *
+ * This file is available to you under your choice of the following two
+ * licenses:
+ *
+ * License 1: GPLv2
+ *
+ * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
+ *
+ * This file is free software; you may copy, redistribute and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ * The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ * (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ * Inc. unless otherwise expressly agreed to in writing between Synopsys
+ * and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product
+ * under any End User Software License Agreement or Agreement for Licensed
+ * Product with Synopsys or any supplement thereto. Permission is hereby
+ * granted, free of charge, to any person obtaining a copy of this software
+ * annotated with this license and the Software, to deal in the Software
+ * without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *
+ * License 2: Modified BSD
+ *
+ * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Advanced Micro Devices, Inc. nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ * The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ * (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ * Inc. unless otherwise expressly agreed to in writing between Synopsys
+ * and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product
+ * under any End User Software License Agreement or Agreement for Licensed
+ * Product with Synopsys or any supplement thereto. Permission is hereby
+ * granted, free of charge, to any person obtaining a copy of this software
+ * annotated with this license and the Software, to deal in the Software
+ * without restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ * BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/of_device.h>
+#include <linux/clk.h>
+#include <linux/property.h>
+#include <linux/acpi.h>
+#include <linux/mdio.h>
+
+#include "xgbe.h"
+#include "xgbe-common.h"
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id xgbe_acpi_match[];
+
+static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
+{
+ const struct acpi_device_id *id;
+
+ id = acpi_match_device(xgbe_acpi_match, pdata->dev);
+
+ return id ? (struct xgbe_version_data *)id->driver_data : NULL;
+}
+
+static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
+{
+ struct device *dev = pdata->dev;
+ u32 property;
+ int ret;
+
+ /* Obtain the system clock setting */
+ ret = device_property_read_u32(dev, XGBE_ACPI_DMA_FREQ, &property);
+ if (ret) {
+ dev_err(dev, "unable to obtain %s property\n",
+ XGBE_ACPI_DMA_FREQ);
+ return ret;
+ }
+ pdata->sysclk_rate = property;
+
+ /* Obtain the PTP clock setting */
+ ret = device_property_read_u32(dev, XGBE_ACPI_PTP_FREQ, &property);
+ if (ret) {
+ dev_err(dev, "unable to obtain %s property\n",
+ XGBE_ACPI_PTP_FREQ);
+ return ret;
+ }
+ pdata->ptpclk_rate = property;
+
+ return 0;
+}
+#else /* CONFIG_ACPI */
+static struct xgbe_version_data *xgbe_acpi_vdata(struct xgbe_prv_data *pdata)
+{
+ return NULL;
+}
+
+static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
+{
+ return -EINVAL;
+}
+#endif /* CONFIG_ACPI */
+
+#ifdef CONFIG_OF
+static const struct of_device_id xgbe_of_match[];
+
+static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
+{
+ const struct of_device_id *id;
+
+ id = of_match_device(xgbe_of_match, pdata->dev);
+
+ return id ? (struct xgbe_version_data *)id->data : NULL;
+}
+
+static int xgbe_of_support(struct xgbe_prv_data *pdata)
+{
+ struct device *dev = pdata->dev;
+
+ /* Obtain the system clock setting */
+ pdata->sysclk = devm_clk_get(dev, XGBE_DMA_CLOCK);
+ if (IS_ERR(pdata->sysclk)) {
+ dev_err(dev, "dma devm_clk_get failed\n");
+ return PTR_ERR(pdata->sysclk);
+ }
+ pdata->sysclk_rate = clk_get_rate(pdata->sysclk);
+
+ /* Obtain the PTP clock setting */
+ pdata->ptpclk = devm_clk_get(dev, XGBE_PTP_CLOCK);
+ if (IS_ERR(pdata->ptpclk)) {
+ dev_err(dev, "ptp devm_clk_get failed\n");
+ return PTR_ERR(pdata->ptpclk);
+ }
+ pdata->ptpclk_rate = clk_get_rate(pdata->ptpclk);
+
+ return 0;
+}
+
+static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
+{
+ struct device *dev = pdata->dev;
+ struct device_node *phy_node;
+ struct platform_device *phy_pdev;
+
+ phy_node = of_parse_phandle(dev->of_node, "phy-handle", 0);
+ if (phy_node) {
+ /* Old style device tree:
+ * The XGBE and PHY resources are separate
+ */
+ phy_pdev = of_find_device_by_node(phy_node);
+ of_node_put(phy_node);
+ } else {
+ /* New style device tree:
+ * The XGBE and PHY resources are grouped together with
+ * the PHY resources listed last
+ */
+ get_device(dev);
+ phy_pdev = pdata->platdev;
+ }
+
+ return phy_pdev;
+}
+#else /* CONFIG_OF */
+static struct xgbe_version_data *xgbe_of_vdata(struct xgbe_prv_data *pdata)
+{
+ return NULL;
+}
+
+static int xgbe_of_support(struct xgbe_prv_data *pdata)
+{
+ return -EINVAL;
+}
+
+static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
+{
+ return NULL;
+}
+#endif /* CONFIG_OF */
+
+static unsigned int xgbe_resource_count(struct platform_device *pdev,
+ unsigned int type)
+{
+ unsigned int count;
+ int i;
+
+ for (i = 0, count = 0; i < pdev->num_resources; i++) {
+ struct resource *res = &pdev->resource[i];
+
+ if (type == resource_type(res))
+ count++;
+ }
+
+ return count;
+}
+
+static struct platform_device *xgbe_get_phy_pdev(struct xgbe_prv_data *pdata)
+{
+ struct platform_device *phy_pdev;
+
+ if (pdata->use_acpi) {
+ get_device(pdata->dev);
+ phy_pdev = pdata->platdev;
+ } else {
+ phy_pdev = xgbe_of_get_phy_pdev(pdata);
+ }
+
+ return phy_pdev;
+}
+
+static struct xgbe_version_data *xgbe_get_vdata(struct xgbe_prv_data *pdata)
+{
+ return pdata->use_acpi ? xgbe_acpi_vdata(pdata)
+ : xgbe_of_vdata(pdata);
+}
+
+static int xgbe_platform_probe(struct platform_device *pdev)
+{
+ struct xgbe_prv_data *pdata;
+ struct device *dev = &pdev->dev;
+ struct platform_device *phy_pdev;
+ struct resource *res;
+ const char *phy_mode;
+ unsigned int phy_memnum, phy_irqnum;
+ unsigned int dma_irqnum, dma_irqend;
+ enum dev_dma_attr attr;
+ int ret;
+
+ pdata = xgbe_alloc_pdata(dev);
+ if (IS_ERR(pdata)) {
+ ret = PTR_ERR(pdata);
+ goto err_alloc;
+ }
+
+ pdata->platdev = pdev;
+ pdata->adev = ACPI_COMPANION(dev);
+ platform_set_drvdata(pdev, pdata);
+
+ /* Check if we should use ACPI or DT */
+ pdata->use_acpi = dev->of_node ? 0 : 1;
+
+ /* Get the version data */
+ pdata->vdata = xgbe_get_vdata(pdata);
+
+ phy_pdev = xgbe_get_phy_pdev(pdata);
+ if (!phy_pdev) {
+ dev_err(dev, "unable to obtain phy device\n");
+ ret = -EINVAL;
+ goto err_phydev;
+ }
+ pdata->phy_platdev = phy_pdev;
+ pdata->phy_dev = &phy_pdev->dev;
+
+ if (pdev == phy_pdev) {
+ /* New style device tree or ACPI:
+ * The XGBE and PHY resources are grouped together with
+ * the PHY resources listed last
+ */
+ phy_memnum = xgbe_resource_count(pdev, IORESOURCE_MEM) - 3;
+ phy_irqnum = xgbe_resource_count(pdev, IORESOURCE_IRQ) - 1;
+ dma_irqnum = 1;
+ dma_irqend = phy_irqnum;
+ } else {
+ /* Old style device tree:
+ * The XGBE and PHY resources are separate
+ */
+ phy_memnum = 0;
+ phy_irqnum = 0;
+ dma_irqnum = 1;
+ dma_irqend = xgbe_resource_count(pdev, IORESOURCE_IRQ);
+ }
+
+ /* Obtain the mmio areas for the device */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ pdata->xgmac_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->xgmac_regs)) {
+ dev_err(dev, "xgmac ioremap failed\n");
+ ret = PTR_ERR(pdata->xgmac_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "xgmac_regs = %p\n", pdata->xgmac_regs);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ pdata->xpcs_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->xpcs_regs)) {
+ dev_err(dev, "xpcs ioremap failed\n");
+ ret = PTR_ERR(pdata->xpcs_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "xpcs_regs = %p\n", pdata->xpcs_regs);
+
+ res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
+ pdata->rxtx_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->rxtx_regs)) {
+ dev_err(dev, "rxtx ioremap failed\n");
+ ret = PTR_ERR(pdata->rxtx_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "rxtx_regs = %p\n", pdata->rxtx_regs);
+
+ res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
+ pdata->sir0_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->sir0_regs)) {
+ dev_err(dev, "sir0 ioremap failed\n");
+ ret = PTR_ERR(pdata->sir0_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "sir0_regs = %p\n", pdata->sir0_regs);
+
+ res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
+ pdata->sir1_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->sir1_regs)) {
+ dev_err(dev, "sir1 ioremap failed\n");
+ ret = PTR_ERR(pdata->sir1_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "sir1_regs = %p\n", pdata->sir1_regs);
+
+ /* Retrieve the MAC address */
+ ret = device_property_read_u8_array(dev, XGBE_MAC_ADDR_PROPERTY,
+ pdata->mac_addr,
+ sizeof(pdata->mac_addr));
+ if (ret || !is_valid_ether_addr(pdata->mac_addr)) {
+ dev_err(dev, "invalid %s property\n", XGBE_MAC_ADDR_PROPERTY);
+ if (!ret)
+ ret = -EINVAL;
+ goto err_io;
+ }
+
+ /* Retrieve the PHY mode - it must be "xgmii" */
+ ret = device_property_read_string(dev, XGBE_PHY_MODE_PROPERTY,
+ &phy_mode);
+ if (ret || strcmp(phy_mode, phy_modes(PHY_INTERFACE_MODE_XGMII))) {
+ dev_err(dev, "invalid %s property\n", XGBE_PHY_MODE_PROPERTY);
+ if (!ret)
+ ret = -EINVAL;
+ goto err_io;
+ }
+ pdata->phy_mode = PHY_INTERFACE_MODE_XGMII;
+
+ /* Check for per channel interrupt support */
+ if (device_property_present(dev, XGBE_DMA_IRQS_PROPERTY))
+ pdata->per_channel_irq = 1;
+
+ /* Obtain device settings unique to ACPI/OF */
+ if (pdata->use_acpi)
+ ret = xgbe_acpi_support(pdata);
+ else
+ ret = xgbe_of_support(pdata);
+ if (ret)
+ goto err_io;
+
+ /* Set the DMA coherency values */
+ attr = device_get_dma_attr(dev);
+ if (attr == DEV_DMA_NOT_SUPPORTED) {
+ dev_err(dev, "DMA is not supported");
+ ret = -ENODEV;
+ goto err_io;
+ }
+ pdata->coherent = (attr == DEV_DMA_COHERENT);
+ if (pdata->coherent) {
+ pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;
+ pdata->arcache = XGBE_DMA_OS_ARCACHE;
+ pdata->awcache = XGBE_DMA_OS_AWCACHE;
+ } else {
+ pdata->axdomain = XGBE_DMA_SYS_AXDOMAIN;
+ pdata->arcache = XGBE_DMA_SYS_ARCACHE;
+ pdata->awcache = XGBE_DMA_SYS_AWCACHE;
+ }
+
+ /* Set the maximum fifo amounts */
+ pdata->tx_max_fifo_size = pdata->vdata->tx_max_fifo_size;
+ pdata->rx_max_fifo_size = pdata->vdata->rx_max_fifo_size;
+
+ /* Set the hardware channel and queue counts */
+ xgbe_set_counts(pdata);
+
+ /* Get the device interrupt */
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0) {
+ dev_err(dev, "platform_get_irq 0 failed\n");
+ goto err_io;
+ }
+ pdata->dev_irq = ret;
+
+ /* Get the per channel DMA interrupts */
+ if (pdata->per_channel_irq) {
+ unsigned int i, max = ARRAY_SIZE(pdata->channel_irq);
+
+ for (i = 0; (i < max) && (dma_irqnum < dma_irqend); i++) {
+ ret = platform_get_irq(pdata->platdev, dma_irqnum++);
+ if (ret < 0) {
+ netdev_err(pdata->netdev,
+ "platform_get_irq %u failed\n",
+ dma_irqnum - 1);
+ goto err_io;
+ }
+
+ pdata->channel_irq[i] = ret;
+ }
+ }
+
+ /* Get the auto-negotiation interrupt */
+ ret = platform_get_irq(phy_pdev, phy_irqnum++);
+ if (ret < 0) {
+ dev_err(dev, "platform_get_irq phy 0 failed\n");
+ goto err_io;
+ }
+ pdata->an_irq = ret;
+
+ /* Configure the netdev resource */
+ ret = xgbe_config_netdev(pdata);
+ if (ret)
+ goto err_io;
+
+ netdev_notice(pdata->netdev, "net device enabled\n");
+
+ return 0;
+
+err_io:
+ platform_device_put(phy_pdev);
+
+err_phydev:
+ xgbe_free_pdata(pdata);
+
+err_alloc:
+ dev_notice(dev, "net device not enabled\n");
+
+ return ret;
+}
+
+static int xgbe_platform_remove(struct platform_device *pdev)
+{
+ struct xgbe_prv_data *pdata = platform_get_drvdata(pdev);
+
+ xgbe_deconfig_netdev(pdata);
+
+ platform_device_put(pdata->phy_platdev);
+
+ xgbe_free_pdata(pdata);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int xgbe_platform_suspend(struct device *dev)
+{
+ struct xgbe_prv_data *pdata = dev_get_drvdata(dev);
+ struct net_device *netdev = pdata->netdev;
+ int ret = 0;
+
+ DBGPR("-->xgbe_suspend\n");
+
+ if (netif_running(netdev))
+ ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
+
+ pdata->lpm_ctrl = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ pdata->lpm_ctrl |= MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
+
+ DBGPR("<--xgbe_suspend\n");
+
+ return ret;
+}
+
+static int xgbe_platform_resume(struct device *dev)
+{
+ struct xgbe_prv_data *pdata = dev_get_drvdata(dev);
+ struct net_device *netdev = pdata->netdev;
+ int ret = 0;
+
+ DBGPR("-->xgbe_resume\n");
+
+ pdata->lpm_ctrl &= ~MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
+
+ if (netif_running(netdev)) {
+ ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
+
+ /* Schedule a restart in case the link or phy state changed
+ * while we were powered down.
+ */
+ schedule_work(&pdata->restart_work);
+ }
+
+ DBGPR("<--xgbe_resume\n");
+
+ return ret;
+}
+#endif /* CONFIG_PM */
+
+static const struct xgbe_version_data xgbe_v1 = {
+ .init_function_ptrs_phy_impl = xgbe_init_function_ptrs_phy_v1,
+ .xpcs_access = XGBE_XPCS_ACCESS_V1,
+ .tx_max_fifo_size = 81920,
+ .rx_max_fifo_size = 81920,
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id xgbe_acpi_match[] = {
+ { .id = "AMDI8001",
+ .driver_data = (kernel_ulong_t)&xgbe_v1 },
+ {},
+};
+
+MODULE_DEVICE_TABLE(acpi, xgbe_acpi_match);
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id xgbe_of_match[] = {
+ { .compatible = "amd,xgbe-seattle-v1a",
+ .data = &xgbe_v1 },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, xgbe_of_match);
+#endif
+
+static SIMPLE_DEV_PM_OPS(xgbe_platform_pm_ops,
+ xgbe_platform_suspend, xgbe_platform_resume);
+
+static struct platform_driver xgbe_driver = {
+ .driver = {
+ .name = "amd-xgbe",
+#ifdef CONFIG_ACPI
+ .acpi_match_table = xgbe_acpi_match,
+#endif
+#ifdef CONFIG_OF
+ .of_match_table = xgbe_of_match,
+#endif
+ .pm = &xgbe_platform_pm_ops,
+ },
+ .probe = xgbe_platform_probe,
+ .remove = xgbe_platform_remove,
+};
+
+int xgbe_platform_init(void)
+{
+ return platform_driver_register(&xgbe_driver);
+}
+
+void xgbe_platform_exit(void)
+{
+ platform_driver_unregister(&xgbe_driver);
+}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index d5cae15..0779247 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -210,8 +210,6 @@
#define XGMAC_DRIVER_CONTEXT 1
#define XGMAC_IOCTL_CONTEXT 2
-#define XGMAC_FIFO_RX_MAX 81920
-#define XGMAC_FIFO_TX_MAX 81920
#define XGMAC_FIFO_MIN_ALLOC 2048
#define XGMAC_FIFO_UNIT 256
#define XGMAC_FIFO_ALIGN(_x) \
@@ -805,14 +803,16 @@ struct xgbe_version_data {
void (*init_function_ptrs_phy_impl)(struct xgbe_phy_if *);
enum xgbe_xpcs_access xpcs_access;
unsigned int mmc_64bit;
+ unsigned int tx_max_fifo_size;
+ unsigned int rx_max_fifo_size;
};
struct xgbe_prv_data {
struct net_device *netdev;
- struct platform_device *pdev;
+ struct platform_device *platdev;
struct acpi_device *adev;
struct device *dev;
- struct platform_device *phy_pdev;
+ struct platform_device *phy_platdev;
struct device *phy_dev;
/* Version related data */
@@ -845,6 +845,7 @@ struct xgbe_prv_data {
int dev_irq;
unsigned int per_channel_irq;
+ int channel_irq[XGBE_MAX_DMA_CHANNELS];
struct xgbe_hw_if hw_if;
struct xgbe_phy_if phy_if;
@@ -863,12 +864,16 @@ struct xgbe_prv_data {
/* Rings for Tx/Rx on a DMA channel */
struct xgbe_channel *channel;
+ unsigned int tx_max_channel_count;
+ unsigned int rx_max_channel_count;
unsigned int channel_count;
unsigned int tx_ring_count;
unsigned int tx_desc_count;
unsigned int rx_ring_count;
unsigned int rx_desc_count;
+ unsigned int tx_max_q_count;
+ unsigned int rx_max_q_count;
unsigned int tx_q_count;
unsigned int rx_q_count;
@@ -880,11 +885,13 @@ struct xgbe_prv_data {
unsigned int tx_threshold;
unsigned int tx_pbl;
unsigned int tx_osp_mode;
+ unsigned int tx_max_fifo_size;
/* Rx settings */
unsigned int rx_sf_mode;
unsigned int rx_threshold;
unsigned int rx_pbl;
+ unsigned int rx_max_fifo_size;
/* Tx coalescing settings */
unsigned int tx_usecs;
@@ -1005,6 +1012,14 @@ struct xgbe_prv_data {
};
/* Function prototypes*/
+struct xgbe_prv_data *xgbe_alloc_pdata(struct device *);
+void xgbe_free_pdata(struct xgbe_prv_data *);
+void xgbe_set_counts(struct xgbe_prv_data *);
+int xgbe_config_netdev(struct xgbe_prv_data *);
+void xgbe_deconfig_netdev(struct xgbe_prv_data *);
+
+int xgbe_platform_init(void);
+void xgbe_platform_exit(void);
void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *);
void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *);
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
` (9 preceding siblings ...)
2016-11-03 18:19 ` [PATCH net-next v1 10/10] amd-xgbe: Prepare for supporting PCI devices Tom Lendacky
@ 2016-11-04 18:52 ` David Miller
10 siblings, 0 replies; 12+ messages in thread
From: David Miller @ 2016-11-04 18:52 UTC (permalink / raw)
To: thomas.lendacky; +Cc: netdev
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Thu, 3 Nov 2016 13:17:28 -0500
> This patch series is targeted at preparing the driver for a new PCI version
> of the hardware. After this series is applied, a follow-on series will
> introduce the support for the PCI version of the hardware.
>
> The following updates and fixes are included in this driver update series:
>
> - Fix formatting of PCS debug register dump
> - Prepare for priority-based FIFO allocation
> - Implement priority-based FIFO allocation
> - Prepare for working with more than one type of PCS/PHY
> - Prepare for the introduction of clause 37 auto-negotiation
> - Add support for clause 37 auto-negotiation
> - Prepare for supporting a new PCS register access method
> - Add support for 64-bit management counter registers
> - Update DMA channel status determination
> - Prepare for supporting PCI devices in addition to platform devices
>
> This patch series is based on net-next.
Series applied, thanks Tom.
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2016-11-04 18:52 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-11-03 18:17 [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 Tom Lendacky
2016-11-03 18:17 ` [PATCH net-next v1 01/10] amd-xgbe: Fix formatting of PCS register dump Tom Lendacky
2016-11-03 18:17 ` [PATCH net-next v1 02/10] amd-xgbe: Prepare for priority-based FIFO allocation Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 03/10] amd-xgbe: Perform priority-based hardware " Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 04/10] amd-xgbe: Prepare for working with more than one type of phy Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 05/10] amd-xgbe: Prepare for introduction of clause 37 autoneg Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 06/10] amd-xgbe: Add support for clause 37 auto-negotiation Tom Lendacky
2016-11-03 18:18 ` [PATCH net-next v1 07/10] amd-xgbe: Prepare for a new PCS register access method Tom Lendacky
2016-11-03 18:19 ` [PATCH net-next v1 08/10] amd-xgbe: Support for 64-bit management counter registers Tom Lendacky
2016-11-03 18:19 ` [PATCH net-next v1 09/10] amd-xgbe: Update how to determine DMA channel status Tom Lendacky
2016-11-03 18:19 ` [PATCH net-next v1 10/10] amd-xgbe: Prepare for supporting PCI devices Tom Lendacky
2016-11-04 18:52 ` [PATCH net-next v1 00/10] amd-xgbe: AMD XGBE driver updates 2016-11-03 David Miller
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