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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-10 20:01:30 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-10 20:01:30 -0800
commitc5ce28df0e7c01a1de23c36ebdefcd803f2b6cbb (patch)
tree9830baf38832769e1cf621708889111bbe3c93df /drivers/net/ethernet/amd
parent29afc4e9a408f2304e09c6dd0dbcfbd2356d0faa (diff)
parent9399f0c51489ae8c16d6559b82a452fdc1895e91 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller: 1) More iov_iter conversion work from Al Viro. [ The "crypto: switch af_alg_make_sg() to iov_iter" commit was wrong, and this pull actually adds an extra commit on top of the branch I'm pulling to fix that up, so that the pre-merge state is ok. - Linus ] 2) Various optimizations to the ipv4 forwarding information base trie lookup implementation. From Alexander Duyck. 3) Remove sock_iocb altogether, from CHristoph Hellwig. 4) Allow congestion control algorithm selection via routing metrics. From Daniel Borkmann. 5) Make ipv4 uncached route list per-cpu, from Eric Dumazet. 6) Handle rfs hash collisions more gracefully, also from Eric Dumazet. 7) Add xmit_more support to r8169, e1000, and e1000e drivers. From Florian Westphal. 8) Transparent Ethernet Bridging support for GRO, from Jesse Gross. 9) Add BPF packet actions to packet scheduler, from Jiri Pirko. 10) Add support for uniqu flow IDs to openvswitch, from Joe Stringer. 11) New NetCP ethernet driver, from Muralidharan Karicheri and Wingman Kwok. 12) More sanely handle out-of-window dupacks, which can result in serious ACK storms. From Neal Cardwell. 13) Various rhashtable bug fixes and enhancements, from Herbert Xu, Patrick McHardy, and Thomas Graf. 14) Support xmit_more in be2net, from Sathya Perla. 15) Group Policy extensions for vxlan, from Thomas Graf. 16) Remove Checksum Offload support for vxlan, from Tom Herbert. 17) Like ipv4, support lockless transmit over ipv6 UDP sockets. From Vlad Yasevich. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1494+1 commits) crypto: fix af_alg_make_sg() conversion to iov_iter ipv4: Namespecify TCP PMTU mechanism i40e: Fix for stats init function call in Rx setup tcp: don't include Fast Open option in SYN-ACK on pure SYN-data openvswitch: Only set TUNNEL_VXLAN_OPT if VXLAN-GBP metadata is set ipv6: Make __ipv6_select_ident static ipv6: Fix fragment id assignment on LE arches. bridge: Fix inability to add non-vlan fdb entry net: Mellanox: Delete unnecessary checks before the function call "vunmap" cxgb4: Add support in cxgb4 to get expansion rom version via ethtool ethtool: rename reserved1 memeber in ethtool_drvinfo for expansion ROM version net: dsa: Remove redundant phy_attach() IB/mlx4: Reset flow support for IB kernel ULPs IB/mlx4: Always use the correct port for mirrored multicast attachments net/bonding: Fix potential bad memory access during bonding events tipc: remove tipc_snprintf tipc: nl compat add noop and remove legacy nl framework tipc: convert legacy nl stats show to nl compat tipc: convert legacy nl net id get to nl compat tipc: convert legacy nl net id set to nl compat ...
Diffstat (limited to 'drivers/net/ethernet/amd')
-rw-r--r--drivers/net/ethernet/amd/Kconfig2
-rw-r--r--drivers/net/ethernet/amd/amd8111e.c4
-rw-r--r--drivers/net/ethernet/amd/pcnet32.c2
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c2
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-desc.c32
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-dev.c66
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-drv.c78
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-main.c203
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-mdio.c29
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-ptp.c12
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe.h31
11 files changed, 291 insertions, 170 deletions
diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
index 77f1f6048dd..c638c85f395 100644
--- a/drivers/net/ethernet/amd/Kconfig
+++ b/drivers/net/ethernet/amd/Kconfig
@@ -179,7 +179,7 @@ config SUNLANCE
config AMD_XGBE
tristate "AMD 10GbE Ethernet driver"
- depends on OF_NET && HAS_IOMEM
+ depends on (OF_NET || ACPI) && HAS_IOMEM
select PHYLIB
select AMD_XGBE_PHY
select BITREVERSE
diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c
index 841e6558db6..4c2ae222178 100644
--- a/drivers/net/ethernet/amd/amd8111e.c
+++ b/drivers/net/ethernet/amd/amd8111e.c
@@ -1299,11 +1299,11 @@ static netdev_tx_t amd8111e_start_xmit(struct sk_buff *skb,
lp->tx_ring[tx_index].tx_flags = 0;
#if AMD8111E_VLAN_TAG_USED
- if (vlan_tx_tag_present(skb)) {
+ if (skb_vlan_tag_present(skb)) {
lp->tx_ring[tx_index].tag_ctrl_cmd |=
cpu_to_le16(TCC_VLAN_INSERT);
lp->tx_ring[tx_index].tag_ctrl_info =
- cpu_to_le16(vlan_tx_tag_get(skb));
+ cpu_to_le16(skb_vlan_tag_get(skb));
}
#endif
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index e2e3aaf501a..11d6e6561df 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -2806,7 +2806,7 @@ static void pcnet32_check_media(struct net_device *dev, int verbose)
/*
* Check for loss of link and link establishment.
- * Can not use mii_check_media because it does nothing if mode is forced.
+ * Could possibly be changed to use mii_check_media instead.
*/
static void pcnet32_watchdog(struct net_device *dev)
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
index 76479d04b90..2c063b60db4 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-debugfs.c
@@ -328,7 +328,7 @@ void xgbe_debugfs_init(struct xgbe_prv_data *pdata)
buf = kasprintf(GFP_KERNEL, "amd-xgbe-%s", pdata->netdev->name);
pdata->xgbe_debugfs = debugfs_create_dir(buf, NULL);
- if (pdata->xgbe_debugfs == NULL) {
+ if (!pdata->xgbe_debugfs) {
netdev_err(pdata->netdev, "debugfs_create_dir failed\n");
return;
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
index a50891f5219..d81fc6bd475 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-desc.c
@@ -422,7 +422,6 @@ static void xgbe_wrapper_rx_descriptor_init(struct xgbe_prv_data *pdata)
ring->cur = 0;
ring->dirty = 0;
- memset(&ring->rx, 0, sizeof(ring->rx));
hw_if->rx_desc_init(channel);
}
@@ -621,35 +620,6 @@ err_out:
return 0;
}
-static void xgbe_realloc_rx_buffer(struct xgbe_channel *channel)
-{
- struct xgbe_prv_data *pdata = channel->pdata;
- struct xgbe_hw_if *hw_if = &pdata->hw_if;
- struct xgbe_ring *ring = channel->rx_ring;
- struct xgbe_ring_data *rdata;
- int i;
-
- DBGPR("-->xgbe_realloc_rx_buffer: rx_ring->rx.realloc_index = %u\n",
- ring->rx.realloc_index);
-
- for (i = 0; i < ring->dirty; i++) {
- rdata = XGBE_GET_DESC_DATA(ring, ring->rx.realloc_index);
-
- /* Reset rdata values */
- xgbe_unmap_rdata(pdata, rdata);
-
- if (xgbe_map_rx_buffer(pdata, ring, rdata))
- break;
-
- hw_if->rx_desc_reset(rdata);
-
- ring->rx.realloc_index++;
- }
- ring->dirty = 0;
-
- DBGPR("<--xgbe_realloc_rx_buffer\n");
-}
-
void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *desc_if)
{
DBGPR("-->xgbe_init_function_ptrs_desc\n");
@@ -657,7 +627,7 @@ void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *desc_if)
desc_if->alloc_ring_resources = xgbe_alloc_ring_resources;
desc_if->free_ring_resources = xgbe_free_ring_resources;
desc_if->map_tx_skb = xgbe_map_tx_skb;
- desc_if->realloc_rx_buffer = xgbe_realloc_rx_buffer;
+ desc_if->map_rx_buffer = xgbe_map_rx_buffer;
desc_if->unmap_rdata = xgbe_unmap_rdata;
desc_if->wrapper_tx_desc_init = xgbe_wrapper_tx_descriptor_init;
desc_if->wrapper_rx_desc_init = xgbe_wrapper_rx_descriptor_init;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index 4c66cd1d1e6..400757b4987 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -115,6 +115,7 @@
*/
#include <linux/phy.h>
+#include <linux/mdio.h>
#include <linux/clk.h>
#include <linux/bitrev.h>
#include <linux/crc32.h>
@@ -130,7 +131,7 @@ static unsigned int xgbe_usec_to_riwt(struct xgbe_prv_data *pdata,
DBGPR("-->xgbe_usec_to_riwt\n");
- rate = clk_get_rate(pdata->sysclk);
+ rate = pdata->sysclk_rate;
/*
* Convert the input usec value to the watchdog timer value. Each
@@ -153,7 +154,7 @@ static unsigned int xgbe_riwt_to_usec(struct xgbe_prv_data *pdata,
DBGPR("-->xgbe_riwt_to_usec\n");
- rate = clk_get_rate(pdata->sysclk);
+ rate = pdata->sysclk_rate;
/*
* Convert the input watchdog timer value to the usec value. Each
@@ -673,6 +674,9 @@ static void xgbe_enable_mac_interrupts(struct xgbe_prv_data *pdata)
static int xgbe_set_gmii_speed(struct xgbe_prv_data *pdata)
{
+ if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0x3)
+ return 0;
+
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x3);
return 0;
@@ -680,6 +684,9 @@ static int xgbe_set_gmii_speed(struct xgbe_prv_data *pdata)
static int xgbe_set_gmii_2500_speed(struct xgbe_prv_data *pdata)
{
+ if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0x2)
+ return 0;
+
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0x2);
return 0;
@@ -687,6 +694,9 @@ static int xgbe_set_gmii_2500_speed(struct xgbe_prv_data *pdata)
static int xgbe_set_xgmii_speed(struct xgbe_prv_data *pdata)
{
+ if (XGMAC_IOREAD_BITS(pdata, MAC_TCR, SS) == 0)
+ return 0;
+
XGMAC_IOWRITE_BITS(pdata, MAC_TCR, SS, 0);
return 0;
@@ -881,6 +891,23 @@ static void xgbe_write_mmd_regs(struct xgbe_prv_data *pdata, int prtad,
else
mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
+ /* If the PCS is changing modes, match the MAC speed to it */
+ if (((mmd_address >> 16) == MDIO_MMD_PCS) &&
+ ((mmd_address & 0xffff) == MDIO_CTRL2)) {
+ struct phy_device *phydev = pdata->phydev;
+
+ if (mmd_data & MDIO_PCS_CTRL2_TYPE) {
+ /* KX mode */
+ if (phydev->supported & SUPPORTED_1000baseKX_Full)
+ xgbe_set_gmii_speed(pdata);
+ else
+ xgbe_set_gmii_2500_speed(pdata);
+ } else {
+ /* KR mode */
+ xgbe_set_xgmii_speed(pdata);
+ }
+ }
+
/* The PCS registers are accessed using mmio. The underlying APB3
* management interface uses indirect addressing to access the MMD
* register sets. This requires accessing of the PCS register in two
@@ -1359,6 +1386,7 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
unsigned int tso_context, vlan_context;
unsigned int tx_set_ic;
int start_index = ring->cur;
+ int cur_index = ring->cur;
int i;
DBGPR("-->xgbe_dev_xmit\n");
@@ -1401,7 +1429,7 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
else
tx_set_ic = 0;
- rdata = XGBE_GET_DESC_DATA(ring, ring->cur);
+ rdata = XGBE_GET_DESC_DATA(ring, cur_index);
rdesc = rdata->rdesc;
/* Create a context descriptor if this is a TSO packet */
@@ -1444,8 +1472,8 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
ring->tx.cur_vlan_ctag = packet->vlan_ctag;
}
- ring->cur++;
- rdata = XGBE_GET_DESC_DATA(ring, ring->cur);
+ cur_index++;
+ rdata = XGBE_GET_DESC_DATA(ring, cur_index);
rdesc = rdata->rdesc;
}
@@ -1473,7 +1501,7 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CTXT, 0);
/* Set OWN bit if not the first descriptor */
- if (ring->cur != start_index)
+ if (cur_index != start_index)
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, OWN, 1);
if (tso) {
@@ -1497,9 +1525,9 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
packet->length);
}
- for (i = ring->cur - start_index + 1; i < packet->rdesc_count; i++) {
- ring->cur++;
- rdata = XGBE_GET_DESC_DATA(ring, ring->cur);
+ for (i = cur_index - start_index + 1; i < packet->rdesc_count; i++) {
+ cur_index++;
+ rdata = XGBE_GET_DESC_DATA(ring, cur_index);
rdesc = rdata->rdesc;
/* Update buffer address */
@@ -1551,7 +1579,7 @@ static void xgbe_dev_xmit(struct xgbe_channel *channel)
/* Make sure ownership is written to the descriptor */
wmb();
- ring->cur++;
+ ring->cur = cur_index + 1;
if (!packet->skb->xmit_more ||
netif_xmit_stopped(netdev_get_tx_queue(pdata->netdev,
channel->queue_index)))
@@ -2107,6 +2135,23 @@ static void xgbe_config_jumbo_enable(struct xgbe_prv_data *pdata)
XGMAC_IOWRITE_BITS(pdata, MAC_RCR, JE, val);
}
+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;
+ }
+}
+
static void xgbe_config_checksum_offload(struct xgbe_prv_data *pdata)
{
if (pdata->netdev->features & NETIF_F_RXCSUM)
@@ -2757,6 +2802,7 @@ static int xgbe_init(struct xgbe_prv_data *pdata)
xgbe_config_mac_address(pdata);
xgbe_config_jumbo_enable(pdata);
xgbe_config_flow_control(pdata);
+ xgbe_config_mac_speed(pdata);
xgbe_config_checksum_offload(pdata);
xgbe_config_vlan_support(pdata);
xgbe_config_mmc(pdata);
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index e5ffb2ccb67..b93d4404d97 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -225,6 +225,11 @@ static inline unsigned int xgbe_tx_avail_desc(struct xgbe_ring *ring)
return (ring->rdesc_count - (ring->cur - ring->dirty));
}
+static inline unsigned int xgbe_rx_dirty_desc(struct xgbe_ring *ring)
+{
+ return (ring->cur - ring->dirty);
+}
+
static int xgbe_maybe_stop_tx_queue(struct xgbe_channel *channel,
struct xgbe_ring *ring, unsigned int count)
{
@@ -337,12 +342,13 @@ static irqreturn_t xgbe_isr(int irq, void *data)
dma_ch_isr = XGMAC_DMA_IOREAD(channel, DMA_CH_SR);
DBGPR(" DMA_CH%u_ISR = %08x\n", i, dma_ch_isr);
- /* If we get a TI or RI interrupt that means per channel DMA
- * interrupts are not enabled, so we use the private data napi
- * structure, not the per channel napi structure
+ /* The TI or RI interrupt bits may still be set even if using
+ * per channel DMA interrupts. Check to be sure those are not
+ * enabled before using the private data napi structure.
*/
- if (XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, TI) ||
- XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, RI)) {
+ if (!pdata->per_channel_irq &&
+ (XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, TI) ||
+ XGMAC_GET_BITS(dma_ch_isr, DMA_CH_SR, RI))) {
if (napi_schedule_prep(&pdata->napi)) {
/* Disable Tx and Rx interrupts */
xgbe_disable_rx_tx_ints(pdata);
@@ -410,17 +416,13 @@ static enum hrtimer_restart xgbe_tx_timer(struct hrtimer *timer)
struct xgbe_channel *channel = container_of(timer,
struct xgbe_channel,
tx_timer);
- struct xgbe_ring *ring = channel->tx_ring;
struct xgbe_prv_data *pdata = channel->pdata;
struct napi_struct *napi;
- unsigned long flags;
DBGPR("-->xgbe_tx_timer\n");
napi = (pdata->per_channel_irq) ? &channel->napi : &pdata->napi;
- spin_lock_irqsave(&ring->lock, flags);
-
if (napi_schedule_prep(napi)) {
/* Disable Tx and Rx interrupts */
if (pdata->per_channel_irq)
@@ -434,8 +436,6 @@ static enum hrtimer_restart xgbe_tx_timer(struct hrtimer *timer)
channel->tx_timer_active = 0;
- spin_unlock_irqrestore(&ring->lock, flags);
-
DBGPR("<--xgbe_tx_timer\n");
return HRTIMER_NORESTART;
@@ -694,7 +694,7 @@ static void xgbe_adjust_link(struct net_device *netdev)
struct phy_device *phydev = pdata->phydev;
int new_state = 0;
- if (phydev == NULL)
+ if (!phydev)
return;
if (phydev->link) {
@@ -929,7 +929,7 @@ static void xgbe_stop(struct xgbe_prv_data *pdata)
DBGPR("<--xgbe_stop\n");
}
-static void xgbe_restart_dev(struct xgbe_prv_data *pdata, unsigned int reset)
+static void xgbe_restart_dev(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
struct xgbe_hw_if *hw_if = &pdata->hw_if;
@@ -952,9 +952,8 @@ static void xgbe_restart_dev(struct xgbe_prv_data *pdata, unsigned int reset)
xgbe_free_tx_data(pdata);
xgbe_free_rx_data(pdata);
- /* Issue software reset to device if requested */
- if (reset)
- hw_if->exit(pdata);
+ /* Issue software reset to device */
+ hw_if->exit(pdata);
xgbe_start(pdata);
@@ -969,7 +968,7 @@ static void xgbe_restart(struct work_struct *work)
rtnl_lock();
- xgbe_restart_dev(pdata, 1);
+ xgbe_restart_dev(pdata);
rtnl_unlock();
}
@@ -1167,8 +1166,8 @@ static void xgbe_prep_tx_tstamp(struct xgbe_prv_data *pdata,
static void xgbe_prep_vlan(struct sk_buff *skb, struct xgbe_packet_data *packet)
{
- if (vlan_tx_tag_present(skb))
- packet->vlan_ctag = vlan_tx_tag_get(skb);
+ if (skb_vlan_tag_present(skb))
+ packet->vlan_ctag = skb_vlan_tag_get(skb);
}
static int xgbe_prep_tso(struct sk_buff *skb, struct xgbe_packet_data *packet)
@@ -1249,9 +1248,9 @@ static void xgbe_packet_info(struct xgbe_prv_data *pdata,
XGMAC_SET_BITS(packet->attributes, TX_PACKET_ATTRIBUTES,
CSUM_ENABLE, 1);
- if (vlan_tx_tag_present(skb)) {
+ if (skb_vlan_tag_present(skb)) {
/* VLAN requires an extra descriptor if tag is different */
- if (vlan_tx_tag_get(skb) != ring->tx.cur_vlan_ctag)
+ if (skb_vlan_tag_get(skb) != ring->tx.cur_vlan_ctag)
/* We can share with the TSO context descriptor */
if (!context_desc) {
context_desc = 1;
@@ -1448,7 +1447,6 @@ static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
struct xgbe_ring *ring;
struct xgbe_packet_data *packet;
struct netdev_queue *txq;
- unsigned long flags;
int ret;
DBGPR("-->xgbe_xmit: skb->len = %d\n", skb->len);
@@ -1460,8 +1458,6 @@ static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
ret = NETDEV_TX_OK;
- spin_lock_irqsave(&ring->lock, flags);
-
if (skb->len == 0) {
netdev_err(netdev, "empty skb received from stack\n");
dev_kfree_skb_any(skb);
@@ -1508,10 +1504,6 @@ static int xgbe_xmit(struct sk_buff *skb, struct net_device *netdev)
ret = NETDEV_TX_OK;
tx_netdev_return:
- spin_unlock_irqrestore(&ring->lock, flags);
-
- DBGPR("<--xgbe_xmit\n");
-
return ret;
}
@@ -1589,7 +1581,7 @@ static int xgbe_change_mtu(struct net_device *netdev, int mtu)
pdata->rx_buf_size = ret;
netdev->mtu = mtu;
- xgbe_restart_dev(pdata, 0);
+ xgbe_restart_dev(pdata);
DBGPR("<--xgbe_change_mtu\n");
@@ -1778,15 +1770,28 @@ struct net_device_ops *xgbe_get_netdev_ops(void)
static void xgbe_rx_refresh(struct xgbe_channel *channel)
{
struct xgbe_prv_data *pdata = channel->pdata;
+ struct xgbe_hw_if *hw_if = &pdata->hw_if;
struct xgbe_desc_if *desc_if = &pdata->desc_if;
struct xgbe_ring *ring = channel->rx_ring;
struct xgbe_ring_data *rdata;
- desc_if->realloc_rx_buffer(channel);
+ while (ring->dirty != ring->cur) {
+ rdata = XGBE_GET_DESC_DATA(ring, ring->dirty);
+
+ /* Reset rdata values */
+ desc_if->unmap_rdata(pdata, rdata);
+
+ if (desc_if->map_rx_buffer(pdata, ring, rdata))
+ break;
+
+ hw_if->rx_desc_reset(rdata);
+
+ ring->dirty++;
+ }
/* Update the Rx Tail Pointer Register with address of
* the last cleaned entry */
- rdata = XGBE_GET_DESC_DATA(ring, ring->rx.realloc_index - 1);
+ rdata = XGBE_GET_DESC_DATA(ring, ring->dirty - 1);
XGMAC_DMA_IOWRITE(channel, DMA_CH_RDTR_LO,
lower_32_bits(rdata->rdesc_dma));
}
@@ -1826,7 +1831,6 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
struct xgbe_ring_desc *rdesc;
struct net_device *netdev = pdata->netdev;
struct netdev_queue *txq;
- unsigned long flags;
int processed = 0;
unsigned int tx_packets = 0, tx_bytes = 0;
@@ -1838,8 +1842,6 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
txq = netdev_get_tx_queue(netdev, channel->queue_index);
- spin_lock_irqsave(&ring->lock, flags);
-
while ((processed < XGBE_TX_DESC_MAX_PROC) &&
(ring->dirty != ring->cur)) {
rdata = XGBE_GET_DESC_DATA(ring, ring->dirty);
@@ -1870,7 +1872,7 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
}
if (!processed)
- goto unlock;
+ return 0;
netdev_tx_completed_queue(txq, tx_packets, tx_bytes);
@@ -1882,9 +1884,6 @@ static int xgbe_tx_poll(struct xgbe_channel *channel)
DBGPR("<--xgbe_tx_poll: processed=%d\n", processed);
-unlock:
- spin_unlock_irqrestore(&ring->lock, flags);
-
return processed;
}
@@ -1936,7 +1935,7 @@ static int xgbe_rx_poll(struct xgbe_channel *channel, int budget)
read_again:
rdata = XGBE_GET_DESC_DATA(ring, ring->cur);
- if (ring->dirty > (XGBE_RX_DESC_CNT >> 3))
+ if (xgbe_rx_dirty_desc(ring) > (XGBE_RX_DESC_CNT >> 3))
xgbe_rx_refresh(channel);
if (hw_if->dev_read(channel))
@@ -1944,7 +1943,6 @@ read_again:
received++;
ring->cur++;
- ring->dirty++;
incomplete = XGMAC_GET_BITS(packet->attributes,
RX_PACKET_ATTRIBUTES,
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index dbd3850b8b0..32dd6513705 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -123,7 +123,10 @@
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_net.h>
+#include <linux/of_address.h>
#include <linux/clk.h>
+#include <linux/property.h>
+#include <linux/acpi.h>
#include "xgbe.h"
#include "xgbe-common.h"
@@ -148,6 +151,7 @@ static void xgbe_default_config(struct xgbe_prv_data *pdata)
pdata->pause_autoneg = 1;
pdata->tx_pause = 1;
pdata->rx_pause = 1;
+ pdata->phy_speed = SPEED_UNKNOWN;
pdata->power_down = 0;
pdata->default_autoneg = AUTONEG_ENABLE;
pdata->default_speed = SPEED_10000;
@@ -161,6 +165,96 @@ static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
xgbe_init_function_ptrs_desc(&pdata->desc_if);
}
+#ifdef CONFIG_ACPI
+static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
+{
+ struct acpi_device *adev = pdata->adev;
+ struct device *dev = pdata->dev;
+ u32 property;
+ acpi_handle handle;
+ acpi_status status;
+ unsigned long long data;
+ int cca;
+ 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;
+
+ /* Retrieve the device cache coherency value */
+ handle = adev->handle;
+ do {
+ status = acpi_evaluate_integer(handle, "_CCA", NULL, &data);
+ if (!ACPI_FAILURE(status)) {
+ cca = data;
+ break;
+ }
+
+ status = acpi_get_parent(handle, &handle);
+ } while (!ACPI_FAILURE(status));
+
+ if (ACPI_FAILURE(status)) {
+ dev_err(dev, "error obtaining acpi coherency value\n");
+ return -EINVAL;
+ }
+ pdata->coherent = !!cca;
+
+ return 0;
+}
+#else /* CONFIG_ACPI */
+static int xgbe_acpi_support(struct xgbe_prv_data *pdata)
+{
+ return -EINVAL;
+}
+#endif /* CONFIG_ACPI */
+
+#ifdef CONFIG_OF
+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);
+
+ /* Retrieve the device cache coherency value */
+ pdata->coherent = of_dma_is_coherent(dev->of_node);
+
+ return 0;
+}
+#else /* CONFIG_OF */
+static int xgbe_of_support(struct xgbe_prv_data *pdata)
+{
+ return -EINVAL;
+}
+#endif /*CONFIG_OF */
+
static int xgbe_probe(struct platform_device *pdev)
{
struct xgbe_prv_data *pdata;
@@ -169,7 +263,7 @@ static int xgbe_probe(struct platform_device *pdev)
struct net_device *netdev;
struct device *dev = &pdev->dev;
struct resource *res;
- const u8 *mac_addr;
+ const char *phy_mode;
unsigned int i;
int ret;
@@ -186,6 +280,7 @@ static int xgbe_probe(struct platform_device *pdev)
pdata = netdev_priv(netdev);
pdata->netdev = netdev;
pdata->pdev = pdev;
+ pdata->adev = ACPI_COMPANION(dev);
pdata->dev = dev;
platform_set_drvdata(pdev, netdev);
@@ -194,6 +289,9 @@ static int xgbe_probe(struct platform_device *pdev)
mutex_init(&pdata->rss_mutex);
spin_lock_init(&pdata->tstamp_lock);
+ /* Check if we should use ACPI or DT */
+ pdata->use_acpi = (!pdata->adev || acpi_disabled) ? 0 : 1;
+
/* 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;
@@ -212,22 +310,6 @@ static int xgbe_probe(struct platform_device *pdev)
goto err_io;
}
- /* 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");
- ret = PTR_ERR(pdata->sysclk);
- goto err_io;
- }
-
- /* 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");
- ret = PTR_ERR(pdata->ptpclk);
- goto err_io;
- }
-
/* Obtain the mmio areas for the device */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
pdata->xgmac_regs = devm_ioremap_resource(dev, res);
@@ -247,16 +329,42 @@ static int xgbe_probe(struct platform_device *pdev)
}
DBGPR(" xpcs_regs = %p\n", pdata->xpcs_regs);
- /* Set the DMA mask */
- if (!dev->dma_mask)
- dev->dma_mask = &dev->coherent_dma_mask;
- ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
- if (ret) {
- dev_err(dev, "dma_set_mask_and_coherent failed\n");
+ /* 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;
}
- if (of_property_read_bool(dev->of_node, "dma-coherent")) {
+ /* 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 */
+ if (pdata->coherent) {
pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;
pdata->arcache = XGBE_DMA_OS_ARCACHE;
pdata->awcache = XGBE_DMA_OS_AWCACHE;
@@ -266,10 +374,16 @@ static int xgbe_probe(struct platform_device *pdev)
pdata->awcache = XGBE_DMA_SYS_AWCACHE;
}
- /* Check for per channel interrupt support */
- if (of_property_read_bool(dev->of_node, XGBE_DMA_IRQS))
- pdata->per_channel_irq = 1;
+ /* Set the DMA mask */
+ if (!dev->dma_mask)
+ dev->dma_mask = &dev->coherent_dma_mask;
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
+ if (ret) {
+ dev_err(dev, "dma_set_mask_and_coherent failed\n");
+ goto err_io;
+ }
+ /* Get the device interrupt */
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
dev_err(dev, "platform_get_irq 0 failed\n");
@@ -279,6 +393,7 @@ static int xgbe_probe(struct platform_device *pdev)
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);
@@ -291,23 +406,6 @@ static int xgbe_probe(struct platform_device *pdev)
/* Populate the hardware features */
xgbe_get_all_hw_features(pdata);
- /* Retrieve the MAC address */
- mac_addr = of_get_mac_address(dev->of_node);
- if (!mac_addr) {
- dev_err(dev, "invalid mac address for this device\n");
- ret = -EINVAL;
- goto err_io;
- }
- memcpy(netdev->dev_addr, mac_addr, netdev->addr_len);
-
- /* Retrieve the PHY mode - it must be "xgmii" */
- pdata->phy_mode = of_get_phy_mode(dev->of_node);
- if (pdata->phy_mode != PHY_INTERFACE_MODE_XGMII) {
- dev_err(dev, "invalid phy-mode specified for this device\n");
- ret = -EINVAL;
- goto err_io;
- }
-
/* Set default configuration data */
xgbe_default_config(pdata);
@@ -491,18 +589,35 @@ static int xgbe_resume(struct device *dev)
}
#endif /* CONFIG_PM */
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id xgbe_acpi_match[] = {
+ { "AMDI8001", 0 },
+ {},
+};
+
+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", },
{},
};
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,
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 363b210560f..59e267f3f1b 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -205,25 +205,16 @@ void xgbe_dump_phy_registers(struct xgbe_prv_data *pdata)
int xgbe_mdio_register(struct xgbe_prv_data *pdata)
{
- struct device_node *phy_node;
struct mii_bus *mii;
struct phy_device *phydev;
int ret = 0;
DBGPR("-->xgbe_mdio_register\n");
- /* Retrieve the phy-handle */
- phy_node = of_parse_phandle(pdata->dev->of_node, "phy-handle", 0);
- if (!phy_node) {
- dev_err(pdata->dev, "unable to parse phy-handle\n");
- return -EINVAL;
- }
-
mii = mdiobus_alloc();
- if (mii == NULL) {
+ if (!mii) {
dev_err(pdata->dev, "mdiobus_alloc failed\n");
- ret = -ENOMEM;
- goto err_node_get;
+ return -ENOMEM;
}
/* Register on the MDIO bus (don't probe any PHYs) */
@@ -252,18 +243,19 @@ int xgbe_mdio_register(struct xgbe_prv_data *pdata)
request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT,
MDIO_ID_ARGS(phydev->c45_ids.device_ids[MDIO_MMD_PCS]));
- of_node_get(phy_node);
- phydev->dev.of_node = phy_node;
ret = phy_device_register(phydev);
if (ret) {
dev_err(pdata->dev, "phy_device_register failed\n");
- of_node_put(phy_node);
+ goto err_phy_device;
+ }
+ if (!phydev->dev.driver) {
+ dev_err(pdata->dev, "phy driver probe failed\n");
+ ret = -EIO;
goto err_phy_device;
}
/* Add a reference to the PHY driver so it can't be unloaded */
- pdata->phy_module = phydev->dev.driver ?
- phydev->dev.driver->owner : NULL;
+ pdata->phy_module = phydev->dev.driver->owner;
if (!try_module_get(pdata->phy_module)) {
dev_err(pdata->dev, "try_module_get failed\n");
ret = -EIO;
@@ -283,8 +275,6 @@ int xgbe_mdio_register(struct xgbe_prv_data *pdata)
pdata->phydev = phydev;
- of_node_put(phy_node);
-
DBGPHY_REGS(pdata);
DBGPR("<--xgbe_mdio_register\n");
@@ -300,9 +290,6 @@ err_mdiobus_register:
err_mdiobus_alloc:
mdiobus_free(mii);
-err_node_get:
- of_node_put(phy_node);
-
return ret;
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
index a1bf9d1cdae..f326178ef37 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ptp.c
@@ -171,15 +171,9 @@ static int xgbe_adjtime(struct ptp_clock_info *info, s64 delta)
struct xgbe_prv_data,
ptp_clock_info);
unsigned long flags;
- u64 nsec;
spin_lock_irqsave(&pdata->tstamp_lock, flags);
-
- nsec = timecounter_read(&pdata->tstamp_tc);
-
- nsec += delta;
- timecounter_init(&pdata->tstamp_tc, &pdata->tstamp_cc, nsec);
-
+ timecounter_adjtime(&pdata->tstamp_tc, delta);
spin_unlock_irqrestore(&pdata->tstamp_lock, flags);
return 0;
@@ -239,7 +233,7 @@ void xgbe_ptp_register(struct xgbe_prv_data *pdata)
snprintf(info->name, sizeof(info->name), "%s",
netdev_name(pdata->netdev));
info->owner = THIS_MODULE;
- info->max_adj = clk_get_rate(pdata->ptpclk);
+ info->max_adj = pdata->ptpclk_rate;
info->adjfreq = xgbe_adjfreq;
info->adjtime = xgbe_adjtime;
info->gettime = xgbe_gettime;
@@ -260,7 +254,7 @@ void xgbe_ptp_register(struct xgbe_prv_data *pdata)
*/
dividend = 50000000;
dividend <<= 32;
- pdata->tstamp_addend = div_u64(dividend, clk_get_rate(pdata->ptpclk));
+ pdata->tstamp_addend = div_u64(dividend, pdata->ptpclk_rate);
/* Setup the timecounter */
cc->read = xgbe_cc_read;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index f9ec762ac3f..13e8f95c077 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -124,7 +124,7 @@
#include <linux/if_vlan.h>
#include <linux/bitops.h>
#include <linux/ptp_clock_kernel.h>
-#include <linux/clocksource.h>
+#include <linux/timecounter.h>
#include <linux/net_tstamp.h>
#include <net/dcbnl.h>
@@ -182,10 +182,18 @@
#define XGBE_PHY_NAME "amd_xgbe_phy"
#define XGBE_PRTAD 0
+/* Common property names */
+#define XGBE_MAC_ADDR_PROPERTY "mac-address"
+#define XGBE_PHY_MODE_PROPERTY "phy-mode"
+#define XGBE_DMA_IRQS_PROPERTY "amd,per-channel-interrupt"
+
/* Device-tree clock names */
#define XGBE_DMA_CLOCK "dma_clk"
#define XGBE_PTP_CLOCK "ptp_clk"
-#define XGBE_DMA_IRQS "amd,per-channel-interrupt"
+
+/* ACPI property names */
+#define XGBE_ACPI_DMA_FREQ "amd,dma-freq"
+#define XGBE_ACPI_PTP_FREQ "amd,ptp-freq"
/* Timestamp support - values based on 50MHz PTP clock
* 50MHz => 20 nsec
@@ -361,8 +369,7 @@ struct xgbe_ring {
* cur - Tx: index of descriptor to be used for current transfer
* Rx: index of descriptor to check for packet availability
* dirty - Tx: index of descriptor to check for transfer complete
- * Rx: count of descriptors in which a packet has been received
- * (used with skb_realloc_index to refresh the ring)
+ * Rx: index of descriptor to check for buffer reallocation
*/
unsigned int cur;
unsigned int dirty;
@@ -377,11 +384,6 @@ struct xgbe_ring {
unsigned short cur_mss;
unsigned short cur_vlan_ctag;
} tx;
-
- struct {
- unsigned int realloc_index;
- unsigned int realloc_threshold;
- } rx;
};
} ____cacheline_aligned;
@@ -596,7 +598,8 @@ struct xgbe_desc_if {
int (*alloc_ring_resources)(struct xgbe_prv_data *);
void (*free_ring_resources)(struct xgbe_prv_data *);
int (*map_tx_skb)(struct xgbe_channel *, struct sk_buff *);
- void (*realloc_rx_buffer)(struct xgbe_channel *);
+ int (*map_rx_buffer)(struct xgbe_prv_data *, struct xgbe_ring *,
+ struct xgbe_ring_data *);
void (*unmap_rdata)(struct xgbe_prv_data *, struct xgbe_ring_data *);
void (*wrapper_tx_desc_init)(struct xgbe_prv_data *);
void (*wrapper_rx_desc_init)(struct xgbe_prv_data *);
@@ -650,8 +653,12 @@ struct xgbe_hw_features {
struct xgbe_prv_data {
struct net_device *netdev;
struct platform_device *pdev;
+ struct acpi_device *adev;
struct device *dev;
+ /* ACPI or DT flag */
+ unsigned int use_acpi;
+
/* XGMAC/XPCS related mmio registers */
void __iomem *xgmac_regs; /* XGMAC CSRs */
void __iomem *xpcs_regs; /* XPCS MMD registers */
@@ -672,6 +679,7 @@ struct xgbe_prv_data {
struct xgbe_desc_if desc_if;
/* AXI DMA settings */
+ unsigned int coherent;
unsigned int axdomain;
unsigned int arcache;
unsigned int awcache;
@@ -739,6 +747,7 @@ struct xgbe_prv_data {
unsigned int phy_rx_pause;
/* Netdev related settings */
+ unsigned char mac_addr[ETH_ALEN];
netdev_features_t netdev_features;
struct napi_struct napi;
struct xgbe_mmc_stats mmc_stats;
@@ -748,7 +757,9 @@ struct xgbe_prv_data {
/* Device clocks */
struct clk *sysclk;
+ unsigned long sysclk_rate;
struct clk *ptpclk;
+ unsigned long ptpclk_rate;
/* Timestamp support */
spinlock_t tstamp_lock;