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-rw-r--r--drivers/net/ethernet/intel/e1000/e1000_main.c10
-rw-r--r--drivers/net/ethernet/intel/ixgbe/Makefile2
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe.h10
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c300
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_main.c60
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c105
6 files changed, 423 insertions, 64 deletions
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 0ae2fcfa5124..3a8368e42ede 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -2014,6 +2014,7 @@ static void e1000_clean_tx_ring(struct e1000_adapter *adapter,
e1000_unmap_and_free_tx_resource(adapter, buffer_info);
}
+ netdev_reset_queue(adapter->netdev);
size = sizeof(struct e1000_buffer) * tx_ring->count;
memset(tx_ring->buffer_info, 0, size);
@@ -3262,6 +3263,7 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
nr_frags, mss);
if (count) {
+ netdev_sent_queue(netdev, skb->len);
skb_tx_timestamp(skb);
e1000_tx_queue(adapter, tx_ring, tx_flags, count);
@@ -3849,6 +3851,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
unsigned int i, eop;
unsigned int count = 0;
unsigned int total_tx_bytes=0, total_tx_packets=0;
+ unsigned int bytes_compl = 0, pkts_compl = 0;
i = tx_ring->next_to_clean;
eop = tx_ring->buffer_info[i].next_to_watch;
@@ -3866,6 +3869,11 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
if (cleaned) {
total_tx_packets += buffer_info->segs;
total_tx_bytes += buffer_info->bytecount;
+ if (buffer_info->skb) {
+ bytes_compl += buffer_info->skb->len;
+ pkts_compl++;
+ }
+
}
e1000_unmap_and_free_tx_resource(adapter, buffer_info);
tx_desc->upper.data = 0;
@@ -3879,6 +3887,8 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
tx_ring->next_to_clean = i;
+ netdev_completed_queue(netdev, pkts_compl, bytes_compl);
+
#define TX_WAKE_THRESHOLD 32
if (unlikely(count && netif_carrier_ok(netdev) &&
E1000_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD)) {
diff --git a/drivers/net/ethernet/intel/ixgbe/Makefile b/drivers/net/ethernet/intel/ixgbe/Makefile
index 5fd5d04c26c9..89f40e51fc13 100644
--- a/drivers/net/ethernet/intel/ixgbe/Makefile
+++ b/drivers/net/ethernet/intel/ixgbe/Makefile
@@ -32,7 +32,7 @@
obj-$(CONFIG_IXGBE) += ixgbe.o
-ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o \
+ixgbe-objs := ixgbe_main.o ixgbe_common.o ixgbe_ethtool.o ixgbe_debugfs.o\
ixgbe_82599.o ixgbe_82598.o ixgbe_phy.o ixgbe_sriov.o \
ixgbe_mbx.o ixgbe_x540.o ixgbe_lib.o
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index bffcf1f2357a..5bd26763554c 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -597,6 +597,9 @@ struct ixgbe_adapter {
#ifdef CONFIG_IXGBE_HWMON
struct hwmon_buff ixgbe_hwmon_buff;
#endif /* CONFIG_IXGBE_HWMON */
+#ifdef CONFIG_DEBUG_FS
+ struct dentry *ixgbe_dbg_adapter;
+#endif /*CONFIG_DEBUG_FS*/
};
struct ixgbe_fdir_filter {
@@ -725,7 +728,12 @@ extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
struct netdev_fcoe_hbainfo *info);
extern u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
#endif /* IXGBE_FCOE */
-
+#ifdef CONFIG_DEBUG_FS
+extern void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
+extern void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
+extern void ixgbe_dbg_init(void);
+extern void ixgbe_dbg_exit(void);
+#endif /* CONFIG_DEBUG_FS */
static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
{
return netdev_get_tx_queue(ring->netdev, ring->queue_index);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
new file mode 100644
index 000000000000..8d3a21889099
--- /dev/null
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_debugfs.c
@@ -0,0 +1,300 @@
+/*******************************************************************************
+
+ Intel 10 Gigabit PCI Express Linux driver
+ Copyright(c) 1999 - 2012 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope 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, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/debugfs.h>
+#include <linux/module.h>
+
+#include "ixgbe.h"
+
+static struct dentry *ixgbe_dbg_root;
+
+static char ixgbe_dbg_reg_ops_buf[256] = "";
+
+/**
+ * ixgbe_dbg_reg_ops_open - prep the debugfs pokee data item when opened
+ * @inode: inode that was opened
+ * @filp: file info
+ *
+ * Stash the adapter pointer hiding in the inode into the file pointer where
+ * we can find it later in the read and write calls
+ **/
+static int ixgbe_dbg_reg_ops_open(struct inode *inode, struct file *filp)
+{
+ filp->private_data = inode->i_private;
+ return 0;
+}
+
+/**
+ * ixgbe_dbg_reg_ops_read - read for reg_ops datum
+ * @filp: the opened file
+ * @buffer: where to write the data for the user to read
+ * @count: the size of the user's buffer
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_reg_ops_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct ixgbe_adapter *adapter = filp->private_data;
+ char buf[256];
+ int bytes_not_copied;
+ int len;
+
+ /* don't allow partial reads */
+ if (*ppos != 0)
+ return 0;
+
+ len = snprintf(buf, sizeof(buf), "%s: %s\n",
+ adapter->netdev->name, ixgbe_dbg_reg_ops_buf);
+ if (count < len)
+ return -ENOSPC;
+ bytes_not_copied = copy_to_user(buffer, buf, len);
+ if (bytes_not_copied < 0)
+ return bytes_not_copied;
+
+ *ppos = len;
+ return len;
+}
+
+/**
+ * ixgbe_dbg_reg_ops_write - write into reg_ops datum
+ * @filp: the opened file
+ * @buffer: where to find the user's data
+ * @count: the length of the user's data
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_reg_ops_write(struct file *filp,
+ const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct ixgbe_adapter *adapter = filp->private_data;
+ int bytes_not_copied;
+
+ /* don't allow partial writes */
+ if (*ppos != 0)
+ return 0;
+ if (count >= sizeof(ixgbe_dbg_reg_ops_buf))
+ return -ENOSPC;
+
+ bytes_not_copied = copy_from_user(ixgbe_dbg_reg_ops_buf, buffer, count);
+ if (bytes_not_copied < 0)
+ return bytes_not_copied;
+ else if (bytes_not_copied < count)
+ count -= bytes_not_copied;
+ else
+ return -ENOSPC;
+ ixgbe_dbg_reg_ops_buf[count] = '\0';
+
+ if (strncmp(ixgbe_dbg_reg_ops_buf, "write", 5) == 0) {
+ u32 reg, value;
+ int cnt;
+ cnt = sscanf(&ixgbe_dbg_reg_ops_buf[5], "%x %x", &reg, &value);
+ if (cnt == 2) {
+ IXGBE_WRITE_REG(&adapter->hw, reg, value);
+ value = IXGBE_READ_REG(&adapter->hw, reg);
+ e_dev_info("write: 0x%08x = 0x%08x\n", reg, value);
+ } else {
+ e_dev_info("write <reg> <value>\n");
+ }
+ } else if (strncmp(ixgbe_dbg_reg_ops_buf, "read", 4) == 0) {
+ u32 reg, value;
+ int cnt;
+ cnt = sscanf(&ixgbe_dbg_reg_ops_buf[4], "%x", &reg);
+ if (cnt == 1) {
+ value = IXGBE_READ_REG(&adapter->hw, reg);
+ e_dev_info("read 0x%08x = 0x%08x\n", reg, value);
+ } else {
+ e_dev_info("read <reg>\n");
+ }
+ } else {
+ e_dev_info("Unknown command %s\n", ixgbe_dbg_reg_ops_buf);
+ e_dev_info("Available commands:\n");
+ e_dev_info(" read <reg>\n");
+ e_dev_info(" write <reg> <value>\n");
+ }
+ return count;
+}
+
+static const struct file_operations ixgbe_dbg_reg_ops_fops = {
+ .owner = THIS_MODULE,
+ .open = ixgbe_dbg_reg_ops_open,
+ .read = ixgbe_dbg_reg_ops_read,
+ .write = ixgbe_dbg_reg_ops_write,
+};
+
+static char ixgbe_dbg_netdev_ops_buf[256] = "";
+
+/**
+ * ixgbe_dbg_netdev_ops_open - prep the debugfs netdev_ops data item
+ * @inode: inode that was opened
+ * @filp: file info
+ *
+ * Stash the adapter pointer hiding in the inode into the file pointer
+ * where we can find it later in the read and write calls
+ **/
+static int ixgbe_dbg_netdev_ops_open(struct inode *inode, struct file *filp)
+{
+ filp->private_data = inode->i_private;
+ return 0;
+}
+
+/**
+ * ixgbe_dbg_netdev_ops_read - read for netdev_ops datum
+ * @filp: the opened file
+ * @buffer: where to write the data for the user to read
+ * @count: the size of the user's buffer
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_netdev_ops_read(struct file *filp,
+ char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct ixgbe_adapter *adapter = filp->private_data;
+ char buf[256];
+ int bytes_not_copied;
+ int len;
+
+ /* don't allow partial reads */
+ if (*ppos != 0)
+ return 0;
+
+ len = snprintf(buf, sizeof(buf), "%s: %s\n",
+ adapter->netdev->name, ixgbe_dbg_netdev_ops_buf);
+ if (count < len)
+ return -ENOSPC;
+ bytes_not_copied = copy_to_user(buffer, buf, len);
+ if (bytes_not_copied < 0)
+ return bytes_not_copied;
+
+ *ppos = len;
+ return len;
+}
+
+/**
+ * ixgbe_dbg_netdev_ops_write - write into netdev_ops datum
+ * @filp: the opened file
+ * @buffer: where to find the user's data
+ * @count: the length of the user's data
+ * @ppos: file position offset
+ **/
+static ssize_t ixgbe_dbg_netdev_ops_write(struct file *filp,
+ const char __user *buffer,
+ size_t count, loff_t *ppos)
+{
+ struct ixgbe_adapter *adapter = filp->private_data;
+ int bytes_not_copied;
+
+ /* don't allow partial writes */
+ if (*ppos != 0)
+ return 0;
+ if (count >= sizeof(ixgbe_dbg_netdev_ops_buf))
+ return -ENOSPC;
+
+ bytes_not_copied = copy_from_user(ixgbe_dbg_netdev_ops_buf,
+ buffer, count);
+ if (bytes_not_copied < 0)
+ return bytes_not_copied;
+ else if (bytes_not_copied < count)
+ count -= bytes_not_copied;
+ else
+ return -ENOSPC;
+ ixgbe_dbg_netdev_ops_buf[count] = '\0';
+
+ if (strncmp(ixgbe_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
+ adapter->netdev->netdev_ops->ndo_tx_timeout(adapter->netdev);
+ e_dev_info("tx_timeout called\n");
+ } else {
+ e_dev_info("Unknown command: %s\n", ixgbe_dbg_netdev_ops_buf);
+ e_dev_info("Available commands:\n");
+ e_dev_info(" tx_timeout\n");
+ }
+ return count;
+}
+
+static const struct file_operations ixgbe_dbg_netdev_ops_fops = {
+ .owner = THIS_MODULE,
+ .open = ixgbe_dbg_netdev_ops_open,
+ .read = ixgbe_dbg_netdev_ops_read,
+ .write = ixgbe_dbg_netdev_ops_write,
+};
+
+/**
+ * ixgbe_dbg_adapter_init - setup the debugfs directory for the adapter
+ * @adapter: the adapter that is starting up
+ **/
+void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter)
+{
+ const char *name = pci_name(adapter->pdev);
+ struct dentry *pfile;
+ adapter->ixgbe_dbg_adapter = debugfs_create_dir(name, ixgbe_dbg_root);
+ if (adapter->ixgbe_dbg_adapter) {
+ pfile = debugfs_create_file("reg_ops", 0600,
+ adapter->ixgbe_dbg_adapter, adapter,
+ &ixgbe_dbg_reg_ops_fops);
+ if (!pfile)
+ e_dev_err("debugfs reg_ops for %s failed\n", name);
+ pfile = debugfs_create_file("netdev_ops", 0600,
+ adapter->ixgbe_dbg_adapter, adapter,
+ &ixgbe_dbg_netdev_ops_fops);
+ if (!pfile)
+ e_dev_err("debugfs netdev_ops for %s failed\n", name);
+ } else {
+ e_dev_err("debugfs entry for %s failed\n", name);
+ }
+}
+
+/**
+ * ixgbe_dbg_adapter_exit - clear out the adapter's debugfs entries
+ * @pf: the pf that is stopping
+ **/
+void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter)
+{
+ if (adapter->ixgbe_dbg_adapter)
+ debugfs_remove_recursive(adapter->ixgbe_dbg_adapter);
+ adapter->ixgbe_dbg_adapter = NULL;
+}
+
+/**
+ * ixgbe_dbg_init - start up debugfs for the driver
+ **/
+void ixgbe_dbg_init(void)
+{
+ ixgbe_dbg_root = debugfs_create_dir(ixgbe_driver_name, NULL);
+ if (ixgbe_dbg_root == NULL)
+ pr_err("init of debugfs failed\n");
+}
+
+/**
+ * ixgbe_dbg_exit - clean out the driver's debugfs entries
+ **/
+void ixgbe_dbg_exit(void)
+{
+ debugfs_remove_recursive(ixgbe_dbg_root);
+}
+
+#endif /* CONFIG_DEBUG_FS */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 1cbb34f507c9..2dc9d91e2b67 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1785,7 +1785,8 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
unsigned int total_rx_bytes = 0, total_rx_packets = 0;
#ifdef IXGBE_FCOE
struct ixgbe_adapter *adapter = q_vector->adapter;
- int ddp_bytes = 0;
+ int ddp_bytes;
+ unsigned int mss = 0;
#endif /* IXGBE_FCOE */
u16 cleaned_count = ixgbe_desc_unused(rx_ring);
@@ -1839,6 +1840,20 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
/* if ddp, not passing to ULD unless for FCP_RSP or error */
if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) {
ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb);
+ /* include DDPed FCoE data */
+ if (ddp_bytes > 0) {
+ if (!mss) {
+ mss = rx_ring->netdev->mtu -
+ sizeof(struct fcoe_hdr) -
+ sizeof(struct fc_frame_header) -
+ sizeof(struct fcoe_crc_eof);
+ if (mss > 512)
+ mss &= ~511;
+ }
+ total_rx_bytes += ddp_bytes;
+ total_rx_packets += DIV_ROUND_UP(ddp_bytes,
+ mss);
+ }
if (!ddp_bytes) {
dev_kfree_skb_any(skb);
continue;
@@ -1852,21 +1867,6 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector,
budget--;
} while (likely(budget));
-#ifdef IXGBE_FCOE
- /* include DDPed FCoE data */
- if (ddp_bytes > 0) {
- unsigned int mss;
-
- mss = rx_ring->netdev->mtu - sizeof(struct fcoe_hdr) -
- sizeof(struct fc_frame_header) -
- sizeof(struct fcoe_crc_eof);
- if (mss > 512)
- mss &= ~511;
- total_rx_bytes += ddp_bytes;
- total_rx_packets += DIV_ROUND_UP(ddp_bytes, mss);
- }
-
-#endif /* IXGBE_FCOE */
u64_stats_update_begin(&rx_ring->syncp);
rx_ring->stats.packets += total_rx_packets;
rx_ring->stats.bytes += total_rx_bytes;
@@ -3660,8 +3660,6 @@ static void ixgbe_configure_dcb(struct ixgbe_adapter *adapter)
if (hw->mac.type == ixgbe_mac_82598EB)
netif_set_gso_max_size(adapter->netdev, 32768);
- hw->mac.ops.set_vfta(&adapter->hw, 0, 0, true);
-
#ifdef IXGBE_FCOE
if (adapter->netdev->features & NETIF_F_FCOE_MTU)
max_frame = max(max_frame, IXGBE_FCOE_JUMBO_FRAME_SIZE);
@@ -3861,6 +3859,11 @@ static void ixgbe_configure(struct ixgbe_adapter *adapter)
#ifdef CONFIG_IXGBE_DCB
ixgbe_configure_dcb(adapter);
#endif
+ /*
+ * We must restore virtualization before VLANs or else
+ * the VLVF registers will not be populated
+ */
+ ixgbe_configure_virtualization(adapter);
ixgbe_set_rx_mode(adapter->netdev);
ixgbe_restore_vlan(adapter);
@@ -3892,8 +3895,6 @@ static void ixgbe_configure(struct ixgbe_adapter *adapter)
break;
}
- ixgbe_configure_virtualization(adapter);
-
#ifdef IXGBE_FCOE
/* configure FCoE L2 filters, redirection table, and Rx control */
ixgbe_configure_fcoe(adapter);
@@ -5572,7 +5573,7 @@ static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
if (!ssvpc)
return;
- e_warn(drv, "%d Spoofed packets detected\n", ssvpc);
+ e_warn(drv, "%u Spoofed packets detected\n", ssvpc);
}
/**
@@ -7447,6 +7448,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
e_err(probe, "failed to allocate sysfs resources\n");
#endif /* CONFIG_IXGBE_HWMON */
+#ifdef CONFIG_DEBUG_FS
+ ixgbe_dbg_adapter_init(adapter);
+#endif /* CONFIG_DEBUG_FS */
+
return 0;
err_register:
@@ -7481,6 +7486,10 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev)
struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
struct net_device *netdev = adapter->netdev;
+#ifdef CONFIG_DEBUG_FS
+ ixgbe_dbg_adapter_exit(adapter);
+#endif /*CONFIG_DEBUG_FS */
+
set_bit(__IXGBE_DOWN, &adapter->state);
cancel_work_sync(&adapter->service_task);
@@ -7736,6 +7745,10 @@ static int __init ixgbe_init_module(void)
pr_info("%s - version %s\n", ixgbe_driver_string, ixgbe_driver_version);
pr_info("%s\n", ixgbe_copyright);
+#ifdef CONFIG_DEBUG_FS
+ ixgbe_dbg_init();
+#endif /* CONFIG_DEBUG_FS */
+
#ifdef CONFIG_IXGBE_DCA
dca_register_notify(&dca_notifier);
#endif
@@ -7758,6 +7771,11 @@ static void __exit ixgbe_exit_module(void)
dca_unregister_notify(&dca_notifier);
#endif
pci_unregister_driver(&ixgbe_driver);
+
+#ifdef CONFIG_DEBUG_FS
+ ixgbe_dbg_exit();
+#endif /* CONFIG_DEBUG_FS */
+
rcu_barrier(); /* Wait for completion of call_rcu()'s */
}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 4fea8716ab64..dce48bf64d96 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -346,6 +346,10 @@ void ixgbe_restore_vf_multicasts(struct ixgbe_adapter *adapter)
static int ixgbe_set_vf_vlan(struct ixgbe_adapter *adapter, int add, int vid,
u32 vf)
{
+ /* VLAN 0 is a special case, don't allow it to be removed */
+ if (!vid && !add)
+ return 0;
+
return adapter->hw.mac.ops.set_vfta(&adapter->hw, vid, vf, (bool)add);
}
@@ -414,6 +418,7 @@ static inline void ixgbe_vf_reset_event(struct ixgbe_adapter *adapter, u32 vf)
VLAN_PRIO_SHIFT)), vf);
ixgbe_set_vmolr(hw, vf, false);
} else {
+ ixgbe_set_vf_vlan(adapter, true, 0, vf);
ixgbe_set_vmvir(adapter, 0, vf);
ixgbe_set_vmolr(hw, vf, true);
}
@@ -810,9 +815,9 @@ out:
return err;
}
-static int ixgbe_link_mbps(int internal_link_speed)
+static int ixgbe_link_mbps(struct ixgbe_adapter *adapter)
{
- switch (internal_link_speed) {
+ switch (adapter->link_speed) {
case IXGBE_LINK_SPEED_100_FULL:
return 100;
case IXGBE_LINK_SPEED_1GB_FULL:
@@ -824,27 +829,30 @@ static int ixgbe_link_mbps(int internal_link_speed)
}
}
-static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate,
- int link_speed)
+static void ixgbe_set_vf_rate_limit(struct ixgbe_adapter *adapter, int vf)
{
- int rf_dec, rf_int;
- u32 bcnrc_val;
+ struct ixgbe_ring_feature *vmdq = &adapter->ring_feature[RING_F_VMDQ];
+ struct ixgbe_hw *hw = &adapter->hw;
+ u32 bcnrc_val = 0;
+ u16 queue, queues_per_pool;
+ u16 tx_rate = adapter->vfinfo[vf].tx_rate;
+
+ if (tx_rate) {
+ /* start with base link speed value */
+ bcnrc_val = adapter->vf_rate_link_speed;
- if (tx_rate != 0) {
/* Calculate the rate factor values to set */
- rf_int = link_speed / tx_rate;
- rf_dec = (link_speed - (rf_int * tx_rate));
- rf_dec = (rf_dec * (1<<IXGBE_RTTBCNRC_RF_INT_SHIFT)) / tx_rate;
-
- bcnrc_val = IXGBE_RTTBCNRC_RS_ENA;
- bcnrc_val |= ((rf_int<<IXGBE_RTTBCNRC_RF_INT_SHIFT) &
- IXGBE_RTTBCNRC_RF_INT_MASK);
- bcnrc_val |= (rf_dec & IXGBE_RTTBCNRC_RF_DEC_MASK);
- } else {
- bcnrc_val = 0;
+ bcnrc_val <<= IXGBE_RTTBCNRC_RF_INT_SHIFT;
+ bcnrc_val /= tx_rate;
+
+ /* clear everything but the rate factor */
+ bcnrc_val &= IXGBE_RTTBCNRC_RF_INT_MASK |
+ IXGBE_RTTBCNRC_RF_DEC_MASK;
+
+ /* enable the rate scheduler */
+ bcnrc_val |= IXGBE_RTTBCNRC_RS_ENA;
}
- IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, 2*vf); /* vf Y uses queue 2*Y */
/*
* Set global transmit compensation time to the MMW_SIZE in RTTBCNRM
* register. Typically MMW_SIZE=0x014 if 9728-byte jumbo is supported
@@ -861,53 +869,68 @@ static void ixgbe_set_vf_rate_limit(struct ixgbe_hw *hw, int vf, int tx_rate,
break;
}
- IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
+ /* determine how many queues per pool based on VMDq mask */
+ queues_per_pool = __ALIGN_MASK(1, ~vmdq->mask);
+
+ /* write value for all Tx queues belonging to VF */
+ for (queue = 0; queue < queues_per_pool; queue++) {
+ unsigned int reg_idx = (vf * queues_per_pool) + queue;
+
+ IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, reg_idx);
+ IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, bcnrc_val);
+ }
}
void ixgbe_check_vf_rate_limit(struct ixgbe_adapter *adapter)
{
- int actual_link_speed, i;
- bool reset_rate = false;
+ int i;
/* VF Tx rate limit was not set */
- if (adapter->vf_rate_link_speed == 0)
+ if (!adapter->vf_rate_link_speed)
return;
- actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
- if (actual_link_speed != adapter->vf_rate_link_speed) {
- reset_rate = true;
+ if (ixgbe_link_mbps(adapter) != adapter->vf_rate_link_speed) {
adapter->vf_rate_link_speed = 0;
dev_info(&adapter->pdev->dev,
- "Link speed has been changed. VF Transmit rate "
- "is disabled\n");
+ "Link speed has been changed. VF Transmit rate is disabled\n");
}
for (i = 0; i < adapter->num_vfs; i++) {
- if (reset_rate)
+ if (!adapter->vf_rate_link_speed)
adapter->vfinfo[i].tx_rate = 0;
- ixgbe_set_vf_rate_limit(&adapter->hw, i,
- adapter->vfinfo[i].tx_rate,
- actual_link_speed);
+ ixgbe_set_vf_rate_limit(adapter, i);
}
}
int ixgbe_ndo_set_vf_bw(struct net_device *netdev, int vf, int tx_rate)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
- struct ixgbe_hw *hw = &adapter->hw;
- int actual_link_speed;
+ int link_speed;
+
+ /* verify VF is active */
+ if (vf >= adapter->num_vfs)
+ return -EINVAL;
- actual_link_speed = ixgbe_link_mbps(adapter->link_speed);
- if ((vf >= adapter->num_vfs) || (!adapter->link_up) ||
- (tx_rate > actual_link_speed) || (actual_link_speed != 10000) ||
- ((tx_rate != 0) && (tx_rate <= 10)))
- /* rate limit cannot be set to 10Mb or less in 10Gb adapters */
+ /* verify link is up */
+ if (!adapter->link_up)
return -EINVAL;
- adapter->vf_rate_link_speed = actual_link_speed;
- adapter->vfinfo[vf].tx_rate = (u16)tx_rate;
- ixgbe_set_vf_rate_limit(hw, vf, tx_rate, actual_link_speed);
+ /* verify we are linked at 10Gbps */
+ link_speed = ixgbe_link_mbps(adapter);
+ if (link_speed != 10000)
+ return -EINVAL;
+
+ /* rate limit cannot be less than 10Mbs or greater than link speed */
+ if (tx_rate && ((tx_rate <= 10) || (tx_rate > link_speed)))
+ return -EINVAL;
+
+ /* store values */
+ adapter->vf_rate_link_speed = link_speed;
+ adapter->vfinfo[vf].tx_rate = tx_rate;
+
+ /* update hardware configuration */
+ ixgbe_set_vf_rate_limit(adapter, vf);
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-23 01:11:53 +0000