#include <stddef.h>
#include <assert.h>
+#include <inttypes.h>
#include <unistd.h>
#include <stdint.h>
#include <stdio.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
-#include <sys/utsname.h>
#include <netinet/in.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
-#include <linux/version.h>
#include <fcntl.h>
#include <stdalign.h>
#include <sys/un.h>
+#include <time.h>
#include <rte_atomic.h>
#include <rte_ethdev.h>
#include <rte_mbuf.h>
#include <rte_common.h>
#include <rte_interrupts.h>
-#include <rte_alarm.h>
#include <rte_malloc.h>
#include "mlx5.h"
#define ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT 39
#endif
-/**
- * Return private structure associated with an Ethernet device.
- *
- * @param dev
- * Pointer to Ethernet device structure.
- *
- * @return
- * Pointer to private structure.
- */
-struct priv *
-mlx5_get_priv(struct rte_eth_dev *dev)
-{
- return dev->data->dev_private;
-}
-
/**
* Get interface name from private structure.
*
- * @param[in] priv
- * Pointer to private structure.
+ * @param[in] dev
+ * Pointer to Ethernet device.
* @param[out] ifname
* Interface name output buffer.
*
* @return
- * 0 on success, -1 on failure and errno is set.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
-priv_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE])
+mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE])
{
+ struct priv *priv = dev->data->dev_private;
DIR *dir;
struct dirent *dent;
unsigned int dev_type = 0;
MKSTR(path, "%s/device/net", priv->ibdev_path);
dir = opendir(path);
- if (dir == NULL)
- return -1;
+ if (dir == NULL) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
}
while ((dent = readdir(dir)) != NULL) {
char *name = dent->d_name;
snprintf(match, sizeof(match), "%s", name);
}
closedir(dir);
- if (match[0] == '\0')
- return -1;
- strncpy(*ifname, match, sizeof(*ifname));
- return 0;
-}
-
-/**
- * Check if the counter is located on ib counters file.
- *
- * @param[in] cntr
- * Counter name.
- *
- * @return
- * 1 if counter is located on ib counters file , 0 otherwise.
- */
-int
-priv_is_ib_cntr(const char *cntr)
-{
- if (!strcmp(cntr, "out_of_buffer"))
- return 1;
- return 0;
-}
-
-/**
- * Read from sysfs entry.
- *
- * @param[in] priv
- * Pointer to private structure.
- * @param[in] entry
- * Entry name relative to sysfs path.
- * @param[out] buf
- * Data output buffer.
- * @param size
- * Buffer size.
- *
- * @return
- * 0 on success, -1 on failure and errno is set.
- */
-static int
-priv_sysfs_read(const struct priv *priv, const char *entry,
- char *buf, size_t size)
-{
- char ifname[IF_NAMESIZE];
- FILE *file;
- int ret;
- int err;
-
- if (priv_get_ifname(priv, &ifname))
- return -1;
-
- if (priv_is_ib_cntr(entry)) {
- MKSTR(path, "%s/ports/1/hw_counters/%s",
- priv->ibdev_path, entry);
- file = fopen(path, "rb");
- } else {
- MKSTR(path, "%s/device/net/%s/%s",
- priv->ibdev_path, ifname, entry);
- file = fopen(path, "rb");
- }
- if (file == NULL)
- return -1;
- ret = fread(buf, 1, size, file);
- err = errno;
- if (((size_t)ret < size) && (ferror(file)))
- ret = -1;
- else
- ret = size;
- fclose(file);
- errno = err;
- return ret;
-}
-
-/**
- * Write to sysfs entry.
- *
- * @param[in] priv
- * Pointer to private structure.
- * @param[in] entry
- * Entry name relative to sysfs path.
- * @param[in] buf
- * Data buffer.
- * @param size
- * Buffer size.
- *
- * @return
- * 0 on success, -1 on failure and errno is set.
- */
-static int
-priv_sysfs_write(const struct priv *priv, const char *entry,
- char *buf, size_t size)
-{
- char ifname[IF_NAMESIZE];
- FILE *file;
- int ret;
- int err;
-
- if (priv_get_ifname(priv, &ifname))
- return -1;
-
- MKSTR(path, "%s/device/net/%s/%s", priv->ibdev_path, ifname, entry);
-
- file = fopen(path, "wb");
- if (file == NULL)
- return -1;
- ret = fwrite(buf, 1, size, file);
- err = errno;
- if (((size_t)ret < size) || (ferror(file)))
- ret = -1;
- else
- ret = size;
- fclose(file);
- errno = err;
- return ret;
-}
-
-/**
- * Get unsigned long sysfs property.
- *
- * @param priv
- * Pointer to private structure.
- * @param[in] name
- * Entry name relative to sysfs path.
- * @param[out] value
- * Value output buffer.
- *
- * @return
- * 0 on success, -1 on failure and errno is set.
- */
-static int
-priv_get_sysfs_ulong(struct priv *priv, const char *name, unsigned long *value)
-{
- int ret;
- unsigned long value_ret;
- char value_str[32];
-
- ret = priv_sysfs_read(priv, name, value_str, (sizeof(value_str) - 1));
- if (ret == -1) {
- DEBUG("cannot read %s value from sysfs: %s",
- name, strerror(errno));
- return -1;
- }
- value_str[ret] = '\0';
- errno = 0;
- value_ret = strtoul(value_str, NULL, 0);
- if (errno) {
- DEBUG("invalid %s value `%s': %s", name, value_str,
- strerror(errno));
- return -1;
- }
- *value = value_ret;
- return 0;
-}
-
-/**
- * Set unsigned long sysfs property.
- *
- * @param priv
- * Pointer to private structure.
- * @param[in] name
- * Entry name relative to sysfs path.
- * @param value
- * Value to set.
- *
- * @return
- * 0 on success, -1 on failure and errno is set.
- */
-static int
-priv_set_sysfs_ulong(struct priv *priv, const char *name, unsigned long value)
-{
- int ret;
- MKSTR(value_str, "%lu", value);
-
- ret = priv_sysfs_write(priv, name, value_str, (sizeof(value_str) - 1));
- if (ret == -1) {
- DEBUG("cannot write %s `%s' (%lu) to sysfs: %s",
- name, value_str, value, strerror(errno));
- return -1;
+ if (match[0] == '\0') {
+ rte_errno = ENOENT;
+ return -rte_errno;
}
+ strncpy(*ifname, match, sizeof(*ifname));
return 0;
}
/**
* Perform ifreq ioctl() on associated Ethernet device.
*
- * @param[in] priv
- * Pointer to private structure.
+ * @param[in] dev
+ * Pointer to Ethernet device.
* @param req
* Request number to pass to ioctl().
* @param[out] ifr
* Interface request structure output buffer.
*
* @return
- * 0 on success, -1 on failure and errno is set.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
-priv_ifreq(const struct priv *priv, int req, struct ifreq *ifr)
+mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr)
{
int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
- int ret = -1;
+ int ret = 0;
- if (sock == -1)
- return ret;
- if (priv_get_ifname(priv, &ifr->ifr_name) == 0)
- ret = ioctl(sock, req, ifr);
+ if (sock == -1) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
+ ret = mlx5_get_ifname(dev, &ifr->ifr_name);
+ if (ret)
+ goto error;
+ ret = ioctl(sock, req, ifr);
+ if (ret == -1) {
+ rte_errno = errno;
+ goto error;
+ }
close(sock);
- return ret;
-}
-
-/**
- * Return the number of active VFs for the current device.
- *
- * @param[in] priv
- * Pointer to private structure.
- * @param[out] num_vfs
- * Number of active VFs.
- *
- * @return
- * 0 on success, -1 on failure and errno is set.
- */
-int
-priv_get_num_vfs(struct priv *priv, uint16_t *num_vfs)
-{
- /* The sysfs entry name depends on the operating system. */
- const char **name = (const char *[]){
- "device/sriov_numvfs",
- "device/mlx5_num_vfs",
- NULL,
- };
- int ret;
-
- do {
- unsigned long ulong_num_vfs;
-
- ret = priv_get_sysfs_ulong(priv, *name, &ulong_num_vfs);
- if (!ret)
- *num_vfs = ulong_num_vfs;
- } while (*(++name) && ret);
- return ret;
+ return 0;
+error:
+ close(sock);
+ return -rte_errno;
}
/**
* Get device MTU.
*
- * @param priv
- * Pointer to private structure.
+ * @param dev
+ * Pointer to Ethernet device.
* @param[out] mtu
* MTU value output buffer.
*
* @return
- * 0 on success, -1 on failure and errno is set.
- */
-int
-priv_get_mtu(struct priv *priv, uint16_t *mtu)
-{
- unsigned long ulong_mtu;
-
- if (priv_get_sysfs_ulong(priv, "mtu", &ulong_mtu) == -1)
- return -1;
- *mtu = ulong_mtu;
- return 0;
-}
-
-/**
- * Read device counter from sysfs.
- *
- * @param priv
- * Pointer to private structure.
- * @param name
- * Counter name.
- * @param[out] cntr
- * Counter output buffer.
- *
- * @return
- * 0 on success, -1 on failure and errno is set.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
-priv_get_cntr_sysfs(struct priv *priv, const char *name, uint64_t *cntr)
+mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu)
{
- unsigned long ulong_ctr;
+ struct ifreq request;
+ int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request);
- if (priv_get_sysfs_ulong(priv, name, &ulong_ctr) == -1)
- return -1;
- *cntr = ulong_ctr;
+ if (ret)
+ return ret;
+ *mtu = request.ifr_mtu;
return 0;
}
/**
* Set device MTU.
*
- * @param priv
- * Pointer to private structure.
+ * @param dev
+ * Pointer to Ethernet device.
* @param mtu
* MTU value to set.
*
* @return
- * 0 on success, -1 on failure and errno is set.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-priv_set_mtu(struct priv *priv, uint16_t mtu)
+mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
{
- uint16_t new_mtu;
+ struct ifreq request = { .ifr_mtu = mtu, };
- if (priv_set_sysfs_ulong(priv, "mtu", mtu) ||
- priv_get_mtu(priv, &new_mtu))
- return -1;
- if (new_mtu == mtu)
- return 0;
- errno = EINVAL;
- return -1;
+ return mlx5_ifreq(dev, SIOCSIFMTU, &request);
}
/**
* Set device flags.
*
- * @param priv
- * Pointer to private structure.
+ * @param dev
+ * Pointer to Ethernet device.
* @param keep
* Bitmask for flags that must remain untouched.
* @param flags
* Bitmask for flags to modify.
*
* @return
- * 0 on success, -1 on failure and errno is set.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
-priv_set_flags(struct priv *priv, unsigned int keep, unsigned int flags)
+mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags)
{
- unsigned long tmp;
+ struct ifreq request;
+ int ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &request);
- if (priv_get_sysfs_ulong(priv, "flags", &tmp) == -1)
- return -1;
- tmp &= keep;
- tmp |= (flags & (~keep));
- return priv_set_sysfs_ulong(priv, "flags", tmp);
+ if (ret)
+ return ret;
+ request.ifr_flags &= keep;
+ request.ifr_flags |= flags & ~keep;
+ return mlx5_ifreq(dev, SIOCSIFFLAGS, &request);
}
/**
- * Ethernet device configuration.
- *
- * Prepare the driver for a given number of TX and RX queues.
+ * DPDK callback for Ethernet device configuration.
*
* @param dev
* Pointer to Ethernet device structure.
*
* @return
- * 0 on success, errno value on failure.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
-static int
-dev_configure(struct rte_eth_dev *dev)
+int
+mlx5_dev_configure(struct rte_eth_dev *dev)
{
struct priv *priv = dev->data->dev_private;
unsigned int rxqs_n = dev->data->nb_rx_queues;
unsigned int reta_idx_n;
const uint8_t use_app_rss_key =
!!dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key;
+ int ret = 0;
if (use_app_rss_key &&
(dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len !=
rss_hash_default_key_len)) {
- /* MLX5 RSS only support 40bytes key. */
- return EINVAL;
+ DRV_LOG(ERR, "port %u RSS key len must be %zu Bytes long",
+ dev->data->port_id, rss_hash_default_key_len);
+ rte_errno = EINVAL;
+ return -rte_errno;
}
priv->rss_conf.rss_key =
rte_realloc(priv->rss_conf.rss_key,
rss_hash_default_key_len, 0);
if (!priv->rss_conf.rss_key) {
- ERROR("cannot allocate RSS hash key memory (%u)", rxqs_n);
- return ENOMEM;
+ DRV_LOG(ERR, "port %u cannot allocate RSS hash key memory (%u)",
+ dev->data->port_id, rxqs_n);
+ rte_errno = ENOMEM;
+ return -rte_errno;
}
memcpy(priv->rss_conf.rss_key,
use_app_rss_key ?
priv->rxqs = (void *)dev->data->rx_queues;
priv->txqs = (void *)dev->data->tx_queues;
if (txqs_n != priv->txqs_n) {
- INFO("%p: TX queues number update: %u -> %u",
- (void *)dev, priv->txqs_n, txqs_n);
+ DRV_LOG(INFO, "port %u Tx queues number update: %u -> %u",
+ dev->data->port_id, priv->txqs_n, txqs_n);
priv->txqs_n = txqs_n;
}
if (rxqs_n > priv->ind_table_max_size) {
- ERROR("cannot handle this many RX queues (%u)", rxqs_n);
- return EINVAL;
+ DRV_LOG(ERR, "port %u cannot handle this many Rx queues (%u)",
+ dev->data->port_id, rxqs_n);
+ rte_errno = EINVAL;
+ return -rte_errno;
}
if (rxqs_n == priv->rxqs_n)
return 0;
- INFO("%p: RX queues number update: %u -> %u",
- (void *)dev, priv->rxqs_n, rxqs_n);
+ DRV_LOG(INFO, "port %u Rx queues number update: %u -> %u",
+ dev->data->port_id, priv->rxqs_n, rxqs_n);
priv->rxqs_n = rxqs_n;
/* If the requested number of RX queues is not a power of two, use the
* maximum indirection table size for better balancing.
reta_idx_n = (1 << log2above((rxqs_n & (rxqs_n - 1)) ?
priv->ind_table_max_size :
rxqs_n));
- if (priv_rss_reta_index_resize(priv, reta_idx_n))
- return ENOMEM;
+ ret = mlx5_rss_reta_index_resize(dev, reta_idx_n);
+ if (ret)
+ return ret;
/* When the number of RX queues is not a power of two, the remaining
* table entries are padded with reused WQs and hashes are not spread
* uniformly. */
return 0;
}
-/**
- * DPDK callback for Ethernet device configuration.
- *
- * @param dev
- * Pointer to Ethernet device structure.
- *
- * @return
- * 0 on success, negative errno value on failure.
- */
-int
-mlx5_dev_configure(struct rte_eth_dev *dev)
-{
- struct priv *priv = dev->data->dev_private;
- int ret;
-
- priv_lock(priv);
- ret = dev_configure(dev);
- assert(ret >= 0);
- priv_unlock(priv);
- return -ret;
-}
-
/**
* DPDK callback to get information about the device.
*
void
mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
{
- struct priv *priv = mlx5_get_priv(dev);
+ struct priv *priv = dev->data->dev_private;
unsigned int max;
char ifname[IF_NAMESIZE];
info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
-
- priv_lock(priv);
/* FIXME: we should ask the device for these values. */
info->min_rx_bufsize = 32;
info->max_rx_pktlen = 65536;
info->tx_offload_capa |= (DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
DEV_TX_OFFLOAD_GRE_TNL_TSO);
- if (priv_get_ifname(priv, &ifname) == 0)
+ if (mlx5_get_ifname(dev, &ifname) == 0)
info->if_index = if_nametoindex(ifname);
info->reta_size = priv->reta_idx_n ?
priv->reta_idx_n : priv->ind_table_max_size;
- info->hash_key_size = priv->rss_conf.rss_key_len;
+ info->hash_key_size = rss_hash_default_key_len;
info->speed_capa = priv->link_speed_capa;
info->flow_type_rss_offloads = ~MLX5_RSS_HF_MASK;
- priv_unlock(priv);
}
+/**
+ * Get supported packet types.
+ *
+ * @param dev
+ * Pointer to Ethernet device structure.
+ *
+ * @return
+ * A pointer to the supported Packet types array.
+ */
const uint32_t *
mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev)
{
*
* @param dev
* Pointer to Ethernet device structure.
- * @param wait_to_complete
- * Wait for request completion (ignored).
+ * @param[out] link
+ * Storage for current link status.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev, int wait_to_complete)
+mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev,
+ struct rte_eth_link *link)
{
- struct priv *priv = mlx5_get_priv(dev);
+ struct priv *priv = dev->data->dev_private;
struct ethtool_cmd edata = {
.cmd = ETHTOOL_GSET /* Deprecated since Linux v4.5. */
};
struct ifreq ifr;
struct rte_eth_link dev_link;
int link_speed = 0;
+ int ret;
- /* priv_lock() is not taken to allow concurrent calls. */
-
- (void)wait_to_complete;
- if (priv_ifreq(priv, SIOCGIFFLAGS, &ifr)) {
- WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(errno));
- return -1;
+ ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
+ if (ret) {
+ DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ return ret;
}
memset(&dev_link, 0, sizeof(dev_link));
dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
(ifr.ifr_flags & IFF_RUNNING));
ifr.ifr_data = (void *)&edata;
- if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
- WARN("ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s",
- strerror(errno));
- return -1;
+ ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
+ if (ret) {
+ DRV_LOG(WARNING,
+ "port %u ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ return ret;
}
link_speed = ethtool_cmd_speed(&edata);
if (link_speed == -1)
ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
ETH_LINK_SPEED_FIXED);
- if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) {
- /* Link status changed. */
- dev->data->dev_link = dev_link;
- return 0;
+ if ((dev_link.link_speed && !dev_link.link_status) ||
+ (!dev_link.link_speed && dev_link.link_status)) {
+ rte_errno = EAGAIN;
+ return -rte_errno;
}
- /* Link status is still the same. */
- return -1;
+ *link = dev_link;
+ return 0;
}
/**
*
* @param dev
* Pointer to Ethernet device structure.
- * @param wait_to_complete
- * Wait for request completion (ignored).
+ * @param[out] link
+ * Storage for current link status.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
-mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev, int wait_to_complete)
+mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev,
+ struct rte_eth_link *link)
+
{
- struct priv *priv = mlx5_get_priv(dev);
+ struct priv *priv = dev->data->dev_private;
struct ethtool_link_settings gcmd = { .cmd = ETHTOOL_GLINKSETTINGS };
struct ifreq ifr;
struct rte_eth_link dev_link;
uint64_t sc;
+ int ret;
- (void)wait_to_complete;
- if (priv_ifreq(priv, SIOCGIFFLAGS, &ifr)) {
- WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(errno));
- return -1;
+ ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
+ if (ret) {
+ DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ return ret;
}
memset(&dev_link, 0, sizeof(dev_link));
dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
(ifr.ifr_flags & IFF_RUNNING));
ifr.ifr_data = (void *)&gcmd;
- if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
- DEBUG("ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS) failed: %s",
- strerror(errno));
- return -1;
+ ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
+ if (ret) {
+ DRV_LOG(DEBUG,
+ "port %u ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS)"
+ " failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ return ret;
}
gcmd.link_mode_masks_nwords = -gcmd.link_mode_masks_nwords;
*ecmd = gcmd;
ifr.ifr_data = (void *)ecmd;
- if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
- DEBUG("ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS) failed: %s",
- strerror(errno));
- return -1;
+ ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
+ if (ret) {
+ DRV_LOG(DEBUG,
+ "port %u ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS)"
+ " failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ return ret;
}
dev_link.link_speed = ecmd->speed;
sc = ecmd->link_mode_masks[0] |
ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
ETH_LINK_SPEED_FIXED);
- if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) {
- /* Link status changed. */
- dev->data->dev_link = dev_link;
- return 0;
+ if ((dev_link.link_speed && !dev_link.link_status) ||
+ (!dev_link.link_speed && dev_link.link_status)) {
+ rte_errno = EAGAIN;
+ return -rte_errno;
}
- /* Link status is still the same. */
- return -1;
-}
-
-/**
- * Enable receiving and transmitting traffic.
- *
- * @param priv
- * Pointer to private structure.
- */
-static void
-priv_link_start(struct priv *priv)
-{
- struct rte_eth_dev *dev = priv->dev;
- int err;
-
- priv_dev_select_tx_function(priv, dev);
- priv_dev_select_rx_function(priv, dev);
- err = priv_dev_traffic_enable(priv, dev);
- if (err)
- ERROR("%p: error occurred while configuring control flows: %s",
- (void *)priv, strerror(err));
- err = priv_flow_start(priv, &priv->flows);
- if (err)
- ERROR("%p: error occurred while configuring flows: %s",
- (void *)priv, strerror(err));
-}
-
-/**
- * Disable receiving and transmitting traffic.
- *
- * @param priv
- * Pointer to private structure.
- */
-static void
-priv_link_stop(struct priv *priv)
-{
- struct rte_eth_dev *dev = priv->dev;
-
- priv_flow_stop(priv, &priv->flows);
- priv_dev_traffic_disable(priv, dev);
- dev->rx_pkt_burst = removed_rx_burst;
- dev->tx_pkt_burst = removed_tx_burst;
-}
-
-/**
- * Retrieve physical link information and update rx/tx_pkt_burst callbacks
- * accordingly.
- *
- * @param priv
- * Pointer to private structure.
- * @param wait_to_complete
- * Wait for request completion (ignored).
- */
-int
-priv_link_update(struct priv *priv, int wait_to_complete)
-{
- struct rte_eth_dev *dev = priv->dev;
- struct utsname utsname;
- int ver[3];
- int ret;
- struct rte_eth_link dev_link = dev->data->dev_link;
-
- if (uname(&utsname) == -1 ||
- sscanf(utsname.release, "%d.%d.%d",
- &ver[0], &ver[1], &ver[2]) != 3 ||
- KERNEL_VERSION(ver[0], ver[1], ver[2]) < KERNEL_VERSION(4, 9, 0))
- ret = mlx5_link_update_unlocked_gset(dev, wait_to_complete);
- else
- ret = mlx5_link_update_unlocked_gs(dev, wait_to_complete);
- /* If lsc interrupt is disabled, should always be ready for traffic. */
- if (!dev->data->dev_conf.intr_conf.lsc) {
- priv_link_start(priv);
- return ret;
- }
- /* Re-select burst callbacks only if link status has been changed. */
- if (!ret && dev_link.link_status != dev->data->dev_link.link_status) {
- if (dev->data->dev_link.link_status == ETH_LINK_UP)
- priv_link_start(priv);
- else
- priv_link_stop(priv);
- }
- return ret;
-}
-
-/**
- * Querying the link status till it changes to the desired state.
- * Number of query attempts is bounded by MLX5_MAX_LINK_QUERY_ATTEMPTS.
- *
- * @param priv
- * Pointer to private structure.
- * @param status
- * Link desired status.
- *
- * @return
- * 0 on success, negative errno value on failure.
- */
-int
-priv_force_link_status_change(struct priv *priv, int status)
-{
- int try = 0;
-
- while (try < MLX5_MAX_LINK_QUERY_ATTEMPTS) {
- priv_link_update(priv, 0);
- if (priv->dev->data->dev_link.link_status == status)
- return 0;
- try++;
- sleep(1);
- }
- return -EAGAIN;
+ *link = dev_link;
+ return 0;
}
/**
* @param dev
* Pointer to Ethernet device structure.
* @param wait_to_complete
- * Wait for request completion (ignored).
+ * Wait for request completion.
+ *
+ * @return
+ * 0 if link status was not updated, positive if it was, a negative errno
+ * value otherwise and rte_errno is set.
*/
int
mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete)
{
- struct priv *priv = dev->data->dev_private;
int ret;
+ struct rte_eth_link dev_link;
+ time_t start_time = time(NULL);
- priv_lock(priv);
- ret = priv_link_update(priv, wait_to_complete);
- priv_unlock(priv);
+ do {
+ ret = mlx5_link_update_unlocked_gs(dev, &dev_link);
+ if (ret)
+ ret = mlx5_link_update_unlocked_gset(dev, &dev_link);
+ if (ret == 0)
+ break;
+ /* Handle wait to complete situation. */
+ if (wait_to_complete && ret == -EAGAIN) {
+ if (abs((int)difftime(time(NULL), start_time)) <
+ MLX5_LINK_STATUS_TIMEOUT) {
+ usleep(0);
+ continue;
+ } else {
+ rte_errno = EBUSY;
+ return -rte_errno;
+ }
+ } else if (ret < 0) {
+ return ret;
+ }
+ } while (wait_to_complete);
+ ret = !!memcmp(&dev->data->dev_link, &dev_link,
+ sizeof(struct rte_eth_link));
+ dev->data->dev_link = dev_link;
return ret;
}
* New MTU.
*
* @return
- * 0 on success, negative errno value on failure.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
{
struct priv *priv = dev->data->dev_private;
- uint16_t kern_mtu;
- int ret = 0;
+ uint16_t kern_mtu = 0;
+ int ret;
- priv_lock(priv);
- ret = priv_get_mtu(priv, &kern_mtu);
+ ret = mlx5_get_mtu(dev, &kern_mtu);
if (ret)
- goto out;
+ return ret;
/* Set kernel interface MTU first. */
- ret = priv_set_mtu(priv, mtu);
+ ret = mlx5_set_mtu(dev, mtu);
if (ret)
- goto out;
- ret = priv_get_mtu(priv, &kern_mtu);
+ return ret;
+ ret = mlx5_get_mtu(dev, &kern_mtu);
if (ret)
- goto out;
+ return ret;
if (kern_mtu == mtu) {
priv->mtu = mtu;
- DEBUG("adapter port %u MTU set to %u", priv->port, mtu);
+ DRV_LOG(DEBUG, "port %u adapter MTU set to %u",
+ dev->data->port_id, mtu);
+ return 0;
}
- priv_unlock(priv);
- return 0;
-out:
- ret = errno;
- WARN("cannot set port %u MTU to %u: %s", priv->port, mtu,
- strerror(ret));
- priv_unlock(priv);
- assert(ret >= 0);
- return -ret;
+ rte_errno = EAGAIN;
+ return -rte_errno;
}
/**
* Flow control output buffer.
*
* @return
- * 0 on success, negative errno value on failure.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
{
- struct priv *priv = dev->data->dev_private;
struct ifreq ifr;
struct ethtool_pauseparam ethpause = {
.cmd = ETHTOOL_GPAUSEPARAM
int ret;
ifr.ifr_data = (void *)ðpause;
- priv_lock(priv);
- if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
- ret = errno;
- WARN("ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM)"
- " failed: %s",
- strerror(ret));
- goto out;
+ ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
+ if (ret) {
+ DRV_LOG(WARNING,
+ "port %u ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM) failed:"
+ " %s",
+ dev->data->port_id, strerror(rte_errno));
+ return ret;
}
-
fc_conf->autoneg = ethpause.autoneg;
if (ethpause.rx_pause && ethpause.tx_pause)
fc_conf->mode = RTE_FC_FULL;
fc_conf->mode = RTE_FC_TX_PAUSE;
else
fc_conf->mode = RTE_FC_NONE;
- ret = 0;
-
-out:
- priv_unlock(priv);
- assert(ret >= 0);
- return -ret;
+ return 0;
}
/**
* Flow control parameters.
*
* @return
- * 0 on success, negative errno value on failure.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
{
- struct priv *priv = dev->data->dev_private;
struct ifreq ifr;
struct ethtool_pauseparam ethpause = {
.cmd = ETHTOOL_SPAUSEPARAM
ethpause.tx_pause = 1;
else
ethpause.tx_pause = 0;
-
- priv_lock(priv);
- if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) {
- ret = errno;
- WARN("ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)"
- " failed: %s",
- strerror(ret));
- goto out;
+ ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
+ if (ret) {
+ DRV_LOG(WARNING,
+ "port %u ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)"
+ " failed: %s",
+ dev->data->port_id, strerror(rte_errno));
+ return ret;
}
- ret = 0;
-
-out:
- priv_unlock(priv);
- assert(ret >= 0);
- return -ret;
+ return 0;
}
/**
* PCI bus address output buffer.
*
* @return
- * 0 on success, -1 on failure and errno is set.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_ibv_device_to_pci_addr(const struct ibv_device *device,
MKSTR(path, "%s/device/uevent", device->ibdev_path);
file = fopen(path, "rb");
- if (file == NULL)
- return -1;
+ if (file == NULL) {
+ rte_errno = errno;
+ return -rte_errno;
+ }
while (fgets(line, sizeof(line), file) == line) {
size_t len = strlen(line);
int ret;
return 0;
}
-/**
- * Update the link status.
- *
- * @param priv
- * Pointer to private structure.
- *
- * @return
- * Zero if the callback process can be called immediately.
- */
-static int
-priv_link_status_update(struct priv *priv)
-{
- struct rte_eth_link *link = &priv->dev->data->dev_link;
-
- priv_link_update(priv, 0);
- if (((link->link_speed == 0) && link->link_status) ||
- ((link->link_speed != 0) && !link->link_status)) {
- /*
- * Inconsistent status. Event likely occurred before the
- * kernel netdevice exposes the new status.
- */
- if (!priv->pending_alarm) {
- priv->pending_alarm = 1;
- rte_eal_alarm_set(MLX5_ALARM_TIMEOUT_US,
- mlx5_dev_link_status_handler,
- priv->dev);
- }
- return 1;
- } else if (unlikely(priv->pending_alarm)) {
- /* Link interrupt occurred while alarm is already scheduled. */
- priv->pending_alarm = 0;
- rte_eal_alarm_cancel(mlx5_dev_link_status_handler, priv->dev);
- }
- return 0;
-}
-
/**
* Device status handler.
*
- * @param priv
- * Pointer to private structure.
+ * @param dev
+ * Pointer to Ethernet device.
* @param events
* Pointer to event flags holder.
*
* Events bitmap of callback process which can be called immediately.
*/
static uint32_t
-priv_dev_status_handler(struct priv *priv)
+mlx5_dev_status_handler(struct rte_eth_dev *dev)
{
+ struct priv *priv = dev->data->dev_private;
struct ibv_async_event event;
uint32_t ret = 0;
+ if (mlx5_link_update(dev, 0) == -EAGAIN) {
+ usleep(0);
+ return 0;
+ }
/* Read all message and acknowledge them. */
for (;;) {
if (ibv_get_async_event(priv->ctx, &event))
break;
if ((event.event_type == IBV_EVENT_PORT_ACTIVE ||
event.event_type == IBV_EVENT_PORT_ERR) &&
- (priv->dev->data->dev_conf.intr_conf.lsc == 1))
+ (dev->data->dev_conf.intr_conf.lsc == 1))
ret |= (1 << RTE_ETH_EVENT_INTR_LSC);
else if (event.event_type == IBV_EVENT_DEVICE_FATAL &&
- priv->dev->data->dev_conf.intr_conf.rmv == 1)
+ dev->data->dev_conf.intr_conf.rmv == 1)
ret |= (1 << RTE_ETH_EVENT_INTR_RMV);
else
- DEBUG("event type %d on port %d not handled",
- event.event_type, event.element.port_num);
+ DRV_LOG(DEBUG,
+ "port %u event type %d on not handled",
+ dev->data->port_id, event.event_type);
ibv_ack_async_event(&event);
}
- if (ret & (1 << RTE_ETH_EVENT_INTR_LSC))
- if (priv_link_status_update(priv))
- ret &= ~(1 << RTE_ETH_EVENT_INTR_LSC);
return ret;
}
-/**
- * Handle delayed link status event.
- *
- * @param arg
- * Registered argument.
- */
-void
-mlx5_dev_link_status_handler(void *arg)
-{
- struct rte_eth_dev *dev = arg;
- struct priv *priv = dev->data->dev_private;
- int ret;
-
- while (!priv_trylock(priv)) {
- /* Alarm is being canceled. */
- if (priv->pending_alarm == 0)
- return;
- rte_pause();
- }
- priv->pending_alarm = 0;
- ret = priv_link_status_update(priv);
- priv_unlock(priv);
- if (!ret)
- _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL,
- NULL);
-}
-
/**
* Handle interrupts from the NIC.
*
mlx5_dev_interrupt_handler(void *cb_arg)
{
struct rte_eth_dev *dev = cb_arg;
- struct priv *priv = dev->data->dev_private;
uint32_t events;
- priv_lock(priv);
- events = priv_dev_status_handler(priv);
- priv_unlock(priv);
+ events = mlx5_dev_status_handler(dev);
if (events & (1 << RTE_ETH_EVENT_INTR_LSC))
_rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL,
NULL);
mlx5_dev_handler_socket(void *cb_arg)
{
struct rte_eth_dev *dev = cb_arg;
- struct priv *priv = dev->data->dev_private;
- priv_lock(priv);
- priv_socket_handle(priv);
- priv_unlock(priv);
+ mlx5_socket_handle(dev);
}
/**
* Uninstall interrupt handler.
*
- * @param priv
- * Pointer to private structure.
* @param dev
- * Pointer to the rte_eth_dev structure.
+ * Pointer to Ethernet device.
*/
void
-priv_dev_interrupt_handler_uninstall(struct priv *priv, struct rte_eth_dev *dev)
+mlx5_dev_interrupt_handler_uninstall(struct rte_eth_dev *dev)
{
+ struct priv *priv = dev->data->dev_private;
+
if (dev->data->dev_conf.intr_conf.lsc ||
dev->data->dev_conf.intr_conf.rmv)
rte_intr_callback_unregister(&priv->intr_handle,
if (priv->primary_socket)
rte_intr_callback_unregister(&priv->intr_handle_socket,
mlx5_dev_handler_socket, dev);
- if (priv->pending_alarm) {
- priv->pending_alarm = 0;
- rte_eal_alarm_cancel(mlx5_dev_link_status_handler, dev);
- }
priv->intr_handle.fd = 0;
priv->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
priv->intr_handle_socket.fd = 0;
/**
* Install interrupt handler.
*
- * @param priv
- * Pointer to private structure.
* @param dev
- * Pointer to the rte_eth_dev structure.
+ * Pointer to Ethernet device.
*/
void
-priv_dev_interrupt_handler_install(struct priv *priv, struct rte_eth_dev *dev)
+mlx5_dev_interrupt_handler_install(struct rte_eth_dev *dev)
{
- int rc, flags;
+ struct priv *priv = dev->data->dev_private;
+ int ret;
+ int flags;
assert(priv->ctx->async_fd > 0);
flags = fcntl(priv->ctx->async_fd, F_GETFL);
- rc = fcntl(priv->ctx->async_fd, F_SETFL, flags | O_NONBLOCK);
- if (rc < 0) {
- INFO("failed to change file descriptor async event queue");
+ ret = fcntl(priv->ctx->async_fd, F_SETFL, flags | O_NONBLOCK);
+ if (ret) {
+ DRV_LOG(INFO,
+ "port %u failed to change file descriptor async event"
+ " queue",
+ dev->data->port_id);
dev->data->dev_conf.intr_conf.lsc = 0;
dev->data->dev_conf.intr_conf.rmv = 0;
}
rte_intr_callback_register(&priv->intr_handle,
mlx5_dev_interrupt_handler, dev);
}
-
- rc = priv_socket_init(priv);
- if (!rc && priv->primary_socket) {
+ ret = mlx5_socket_init(dev);
+ if (ret)
+ DRV_LOG(ERR, "port %u cannot initialise socket: %s",
+ dev->data->port_id, strerror(rte_errno));
+ else if (priv->primary_socket) {
priv->intr_handle_socket.fd = priv->primary_socket;
priv->intr_handle_socket.type = RTE_INTR_HANDLE_EXT;
rte_intr_callback_register(&priv->intr_handle_socket,
}
}
-/**
- * Change the link state (UP / DOWN).
- *
- * @param priv
- * Pointer to private data structure.
- * @param up
- * Nonzero for link up, otherwise link down.
- *
- * @return
- * 0 on success, errno value on failure.
- */
-static int
-priv_dev_set_link(struct priv *priv, int up)
-{
- return priv_set_flags(priv, ~IFF_UP, up ? IFF_UP : ~IFF_UP);
-}
-
/**
* DPDK callback to bring the link DOWN.
*
* Pointer to Ethernet device structure.
*
* @return
- * 0 on success, errno value on failure.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_set_link_down(struct rte_eth_dev *dev)
{
- struct priv *priv = dev->data->dev_private;
- int err;
-
- priv_lock(priv);
- err = priv_dev_set_link(priv, 0);
- priv_unlock(priv);
- return err;
+ return mlx5_set_flags(dev, ~IFF_UP, ~IFF_UP);
}
/**
* Pointer to Ethernet device structure.
*
* @return
- * 0 on success, errno value on failure.
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_set_link_up(struct rte_eth_dev *dev)
{
- struct priv *priv = dev->data->dev_private;
- int err;
-
- priv_lock(priv);
- err = priv_dev_set_link(priv, 1);
- priv_unlock(priv);
- return err;
+ return mlx5_set_flags(dev, ~IFF_UP, IFF_UP);
}
/**
* Configure the TX function to use.
*
- * @param priv
- * Pointer to private data structure.
* @param dev
* Pointer to rte_eth_dev structure.
+ *
+ * @return
+ * Pointer to selected Tx burst function.
*/
-void
-priv_dev_select_tx_function(struct priv *priv, struct rte_eth_dev *dev)
+eth_tx_burst_t
+mlx5_select_tx_function(struct rte_eth_dev *dev)
{
- assert(priv != NULL);
- assert(dev != NULL);
- dev->tx_pkt_burst = mlx5_tx_burst;
+ struct priv *priv = dev->data->dev_private;
+ eth_tx_burst_t tx_pkt_burst = mlx5_tx_burst;
+
/* Select appropriate TX function. */
if (priv->mps == MLX5_MPW_ENHANCED) {
- if (priv_check_vec_tx_support(priv) > 0) {
- if (priv_check_raw_vec_tx_support(priv) > 0)
- dev->tx_pkt_burst = mlx5_tx_burst_raw_vec;
+ if (mlx5_check_vec_tx_support(dev) > 0) {
+ if (mlx5_check_raw_vec_tx_support(dev) > 0)
+ tx_pkt_burst = mlx5_tx_burst_raw_vec;
else
- dev->tx_pkt_burst = mlx5_tx_burst_vec;
- DEBUG("selected Enhanced MPW TX vectorized function");
+ tx_pkt_burst = mlx5_tx_burst_vec;
+ DRV_LOG(DEBUG,
+ "port %u selected enhanced MPW Tx vectorized"
+ " function",
+ dev->data->port_id);
} else {
- dev->tx_pkt_burst = mlx5_tx_burst_empw;
- DEBUG("selected Enhanced MPW TX function");
+ tx_pkt_burst = mlx5_tx_burst_empw;
+ DRV_LOG(DEBUG,
+ "port %u selected enhanced MPW Tx function",
+ dev->data->port_id);
}
} else if (priv->mps && priv->txq_inline) {
- dev->tx_pkt_burst = mlx5_tx_burst_mpw_inline;
- DEBUG("selected MPW inline TX function");
+ tx_pkt_burst = mlx5_tx_burst_mpw_inline;
+ DRV_LOG(DEBUG, "port %u selected MPW inline Tx function",
+ dev->data->port_id);
} else if (priv->mps) {
- dev->tx_pkt_burst = mlx5_tx_burst_mpw;
- DEBUG("selected MPW TX function");
+ tx_pkt_burst = mlx5_tx_burst_mpw;
+ DRV_LOG(DEBUG, "port %u selected MPW Tx function",
+ dev->data->port_id);
}
+ return tx_pkt_burst;
}
/**
* Configure the RX function to use.
*
- * @param priv
- * Pointer to private data structure.
* @param dev
* Pointer to rte_eth_dev structure.
+ *
+ * @return
+ * Pointer to selected Rx burst function.
*/
-void
-priv_dev_select_rx_function(struct priv *priv, struct rte_eth_dev *dev)
+eth_rx_burst_t
+mlx5_select_rx_function(struct rte_eth_dev *dev)
{
- assert(priv != NULL);
+ eth_rx_burst_t rx_pkt_burst = mlx5_rx_burst;
+
assert(dev != NULL);
- if (priv_check_vec_rx_support(priv) > 0) {
- dev->rx_pkt_burst = mlx5_rx_burst_vec;
- DEBUG("selected RX vectorized function");
- } else {
- dev->rx_pkt_burst = mlx5_rx_burst;
+ if (mlx5_check_vec_rx_support(dev) > 0) {
+ rx_pkt_burst = mlx5_rx_burst_vec;
+ DRV_LOG(DEBUG, "port %u selected Rx vectorized function",
+ dev->data->port_id);
}
+ return rx_pkt_burst;
}
Code Review / deb_dpdk.git / blobdiff