From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f181.google.com (mail-ob0-f181.google.com [209.85.214.181]) by dpdk.org (Postfix) with ESMTP id 9A6F0377C for ; Sat, 23 May 2015 06:46:50 +0200 (CEST) Received: by obbea2 with SMTP id ea2so25741524obb.3 for ; Fri, 22 May 2015 21:46:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=2/38KU6bH090IpFSCfNEbH8oVwxrOFE39Bp6ENz/25g=; b=UjFQLAiz+qoEVcfUTKhe9GSDAHHQTBTKD21oYF29lklih/kA7nPTxeE/6QRvtehPF3 LNhAFL9Ns7PaRT6CF/7/EB2WPvwRBtj9yFxUCl9k2DwnsOhFc97R0J0jwsPAKzVwJf0x SPE/Z7SyV2pItqY73ZiTRlxy2zLhjQZHRiam19KsFfAoJ0jIjDNRLwF/nV46y5v0y6kL iZnvgzAyUPBwi/1UOkxTpc7eNoIyVmvLBFapQJ2Pl2OLiJu8Q54v8VtOlACpFzt00yRm m6PcepooB4XF+lvfHZzHyGDX6BBiD3KC2if7/Rt07vALFuMqZfNWbbj7CY9mxpJnw+kf ASvA== MIME-Version: 1.0 X-Received: by 10.182.142.162 with SMTP id rx2mr9259434obb.82.1432356409894; Fri, 22 May 2015 21:46:49 -0700 (PDT) Received: by 10.76.38.161 with HTTP; Fri, 22 May 2015 21:46:49 -0700 (PDT) In-Reply-To: <1431705423-16134-11-git-send-email-bruce.richardson@intel.com> References: <1431450315-13179-1-git-send-email-bruce.richardson@intel.com> <1431705423-16134-1-git-send-email-bruce.richardson@intel.com> <1431705423-16134-11-git-send-email-bruce.richardson@intel.com> Date: Sat, 23 May 2015 07:46:49 +0300 Message-ID: From: Or Gerlitz To: Bruce Richardson Content-Type: text/plain; charset=UTF-8 X-Mailman-Approved-At: Sat, 23 May 2015 21:32:04 +0200 Cc: dev@dpdk.org Subject: Re: [dpdk-dev] [PATCH v2 10/19] mlx4: move mlx4 PMD to drivers/net directory X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 May 2015 04:46:51 -0000 On Fri, May 15, 2015 at 6:56 PM, Bruce Richardson wrote: > move mlx4 PMD to drivers/net directory > > Signed-off-by: Bruce Richardson > --- > drivers/net/Makefile | 2 +- > drivers/net/mlx4/Makefile | 121 + > drivers/net/mlx4/mlx4.c | 4686 ++++++++++++++++++++++++++ > drivers/net/mlx4/mlx4.h | 157 + > drivers/net/mlx4/rte_pmd_mlx4_version.map | 4 + > lib/Makefile | 1 - > lib/librte_pmd_mlx4/Makefile | 121 - > lib/librte_pmd_mlx4/mlx4.c | 4686 -------------------------- > lib/librte_pmd_mlx4/mlx4.h | 157 - > lib/librte_pmd_mlx4/rte_pmd_mlx4_version.map | 4 - > 10 files changed, 4969 insertions(+), 4970 deletions(-) > create mode 100644 drivers/net/mlx4/Makefile > create mode 100644 drivers/net/mlx4/mlx4.c > create mode 100644 drivers/net/mlx4/mlx4.h > create mode 100644 drivers/net/mlx4/rte_pmd_mlx4_version.map > delete mode 100644 lib/librte_pmd_mlx4/Makefile > delete mode 100644 lib/librte_pmd_mlx4/mlx4.c > delete mode 100644 lib/librte_pmd_mlx4/mlx4.h > delete mode 100644 lib/librte_pmd_mlx4/rte_pmd_mlx4_version.map There's a way to do source movements with git such that history remains, see for example in the upstream kernel the way the ethernet drivers were moved from drivers/net to drivers/net/ethernet couple of years ago. Please make sure to use that practice here too. Or. > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#include > +#ifdef PEDANTIC > +#pragma GCC diagnostic error "-pedantic" > +#endif > + > +/* Generated configuration header. */ > +#include "mlx4_autoconf.h" > + > +/* PMD header. */ > +#include "mlx4.h" > + > +/* Runtime logging through RTE_LOG() is enabled when not in debugging mode. > + * Intermediate LOG_*() macros add the required end-of-line characters. */ > +#ifndef NDEBUG > +#define INFO(...) DEBUG(__VA_ARGS__) > +#define WARN(...) DEBUG(__VA_ARGS__) > +#define ERROR(...) DEBUG(__VA_ARGS__) > +#else > +#define LOG__(level, m, ...) \ > + RTE_LOG(level, PMD, MLX4_DRIVER_NAME ": " m "%c", __VA_ARGS__) > +#define LOG_(level, ...) LOG__(level, __VA_ARGS__, '\n') > +#define INFO(...) LOG_(INFO, __VA_ARGS__) > +#define WARN(...) LOG_(WARNING, __VA_ARGS__) > +#define ERROR(...) LOG_(ERR, __VA_ARGS__) > +#endif > + > +/* Convenience macros for accessing mbuf fields. */ > +#define NEXT(m) ((m)->next) > +#define DATA_LEN(m) ((m)->data_len) > +#define PKT_LEN(m) ((m)->pkt_len) > +#define DATA_OFF(m) ((m)->data_off) > +#define SET_DATA_OFF(m, o) ((m)->data_off = (o)) > +#define NB_SEGS(m) ((m)->nb_segs) > +#define PORT(m) ((m)->port) > + > +/* Work Request ID data type (64 bit). */ > +typedef union { > + struct { > + uint32_t id; > + uint16_t offset; > + } data; > + uint64_t raw; > +} wr_id_t; > + > +#define WR_ID(o) (((wr_id_t *)&(o))->data) > + > +/* Compile-time check. */ > +static inline void wr_id_t_check(void) > +{ > + wr_id_t check[1 + (2 * -!(sizeof(wr_id_t) == sizeof(uint64_t)))]; > + > + (void)check; > + (void)wr_id_t_check; > +} > + > +/* If raw send operations are available, use them since they are faster. */ > +#ifdef SEND_RAW_WR_SUPPORT > +typedef struct ibv_send_wr_raw mlx4_send_wr_t; > +#define mlx4_post_send ibv_post_send_raw > +#else > +typedef struct ibv_send_wr mlx4_send_wr_t; > +#define mlx4_post_send ibv_post_send > +#endif > + > +struct mlx4_rxq_stats { > + unsigned int idx; /**< Mapping index. */ > +#ifdef MLX4_PMD_SOFT_COUNTERS > + uint64_t ipackets; /**< Total of successfully received packets. */ > + uint64_t ibytes; /**< Total of successfully received bytes. */ > +#endif > + uint64_t idropped; /**< Total of packets dropped when RX ring full. */ > + uint64_t rx_nombuf; /**< Total of RX mbuf allocation failures. */ > +}; > + > +struct mlx4_txq_stats { > + unsigned int idx; /**< Mapping index. */ > +#ifdef MLX4_PMD_SOFT_COUNTERS > + uint64_t opackets; /**< Total of successfully sent packets. */ > + uint64_t obytes; /**< Total of successfully sent bytes. */ > +#endif > + uint64_t odropped; /**< Total of packets not sent when TX ring full. */ > +}; > + > +/* RX element (scattered packets). */ > +struct rxq_elt_sp { > + struct ibv_recv_wr wr; /* Work Request. */ > + struct ibv_sge sges[MLX4_PMD_SGE_WR_N]; /* Scatter/Gather Elements. */ > + struct rte_mbuf *bufs[MLX4_PMD_SGE_WR_N]; /* SGEs buffers. */ > +}; > + > +/* RX element. */ > +struct rxq_elt { > + struct ibv_recv_wr wr; /* Work Request. */ > + struct ibv_sge sge; /* Scatter/Gather Element. */ > + /* mbuf pointer is derived from WR_ID(wr.wr_id).offset. */ > +}; > + > +/* RX queue descriptor. */ > +struct rxq { > + struct priv *priv; /* Back pointer to private data. */ > + struct rte_mempool *mp; /* Memory Pool for allocations. */ > + struct ibv_mr *mr; /* Memory Region (for mp). */ > + struct ibv_cq *cq; /* Completion Queue. */ > + struct ibv_qp *qp; /* Queue Pair. */ > + /* > + * There is exactly one flow configured per MAC address. Each flow > + * may contain several specifications, one per configured VLAN ID. > + */ > + BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES); > + struct ibv_exp_flow *mac_flow[MLX4_MAX_MAC_ADDRESSES]; > + struct ibv_exp_flow *promisc_flow; /* Promiscuous flow. */ > + struct ibv_exp_flow *allmulti_flow; /* Multicast flow. */ > + unsigned int port_id; /* Port ID for incoming packets. */ > + unsigned int elts_n; /* (*elts)[] length. */ > + union { > + struct rxq_elt_sp (*sp)[]; /* Scattered RX elements. */ > + struct rxq_elt (*no_sp)[]; /* RX elements. */ > + } elts; > + unsigned int sp:1; /* Use scattered RX elements. */ > + uint32_t mb_len; /* Length of a mp-issued mbuf. */ > + struct mlx4_rxq_stats stats; /* RX queue counters. */ > + unsigned int socket; /* CPU socket ID for allocations. */ > +}; > + > +/* TX element. */ > +struct txq_elt { > + mlx4_send_wr_t wr; /* Work Request. */ > + struct ibv_sge sges[MLX4_PMD_SGE_WR_N]; /* Scatter/Gather Elements. */ > + /* mbuf pointer is derived from WR_ID(wr.wr_id).offset. */ > +}; > + > +/* Linear buffer type. It is used when transmitting buffers with too many > + * segments that do not fit the hardware queue (see max_send_sge). > + * Extra segments are copied (linearized) in such buffers, replacing the > + * last SGE during TX. > + * The size is arbitrary but large enough to hold a jumbo frame with > + * 8 segments considering mbuf.buf_len is about 2048 bytes. */ > +typedef uint8_t linear_t[16384]; > + > +/* TX queue descriptor. */ > +struct txq { > + struct priv *priv; /* Back pointer to private data. */ > + struct { > + struct rte_mempool *mp; /* Cached Memory Pool. */ > + struct ibv_mr *mr; /* Memory Region (for mp). */ > + uint32_t lkey; /* mr->lkey */ > + } mp2mr[MLX4_PMD_TX_MP_CACHE]; /* MP to MR translation table. */ > + struct ibv_cq *cq; /* Completion Queue. */ > + struct ibv_qp *qp; /* Queue Pair. */ > +#if MLX4_PMD_MAX_INLINE > 0 > + uint32_t max_inline; /* Max inline send size <= MLX4_PMD_MAX_INLINE. */ > +#endif > + unsigned int elts_n; /* (*elts)[] length. */ > + struct txq_elt (*elts)[]; /* TX elements. */ > + unsigned int elts_head; /* Current index in (*elts)[]. */ > + unsigned int elts_tail; /* First element awaiting completion. */ > + unsigned int elts_comp; /* Number of completion requests. */ > + struct mlx4_txq_stats stats; /* TX queue counters. */ > + linear_t (*elts_linear)[]; /* Linearized buffers. */ > + struct ibv_mr *mr_linear; /* Memory Region for linearized buffers. */ > + unsigned int socket; /* CPU socket ID for allocations. */ > +}; > + > +struct priv { > + struct rte_eth_dev *dev; /* Ethernet device. */ > + struct ibv_context *ctx; /* Verbs context. */ > + struct ibv_device_attr device_attr; /* Device properties. */ > + struct ibv_port_attr port_attr; /* Physical port properties. */ > + struct ibv_pd *pd; /* Protection Domain. */ > + /* > + * MAC addresses array and configuration bit-field. > + * An extra entry that cannot be modified by the DPDK is reserved > + * for broadcast frames (destination MAC address ff:ff:ff:ff:ff:ff). > + */ > + struct ether_addr mac[MLX4_MAX_MAC_ADDRESSES]; > + BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES); > + /* VLAN filters. */ > + struct { > + unsigned int enabled:1; /* If enabled. */ > + unsigned int id:12; /* VLAN ID (0-4095). */ > + } vlan_filter[MLX4_MAX_VLAN_IDS]; /* VLAN filters table. */ > + /* Device properties. */ > + uint16_t mtu; /* Configured MTU. */ > + uint8_t port; /* Physical port number. */ > + unsigned int started:1; /* Device started, flows enabled. */ > + unsigned int promisc:1; /* Device in promiscuous mode. */ > + unsigned int promisc_ok:1; /* Promiscuous flow is supported. */ > + unsigned int allmulti:1; /* Device receives all multicast packets. */ > + unsigned int hw_qpg:1; /* QP groups are supported. */ > + unsigned int hw_tss:1; /* TSS is supported. */ > + unsigned int hw_rss:1; /* RSS is supported. */ > + unsigned int rss:1; /* RSS is enabled. */ > + unsigned int vf:1; /* This is a VF device. */ > +#ifdef INLINE_RECV > + unsigned int inl_recv_size; /* Inline recv size */ > +#endif > + unsigned int max_rss_tbl_sz; /* Maximum number of RSS queues. */ > + /* RX/TX queues. */ > + struct rxq rxq_parent; /* Parent queue when RSS is enabled. */ > + unsigned int rxqs_n; /* RX queues array size. */ > + unsigned int txqs_n; /* TX queues array size. */ > + struct rxq *(*rxqs)[]; /* RX queues. */ > + struct txq *(*txqs)[]; /* TX queues. */ > + rte_spinlock_t lock; /* Lock for control functions. */ > +}; > + > +/** > + * Lock private structure to protect it from concurrent access in the > + * control path. > + * > + * @param priv > + * Pointer to private structure. > + */ > +static void > +priv_lock(struct priv *priv) > +{ > + rte_spinlock_lock(&priv->lock); > +} > + > +/** > + * Unlock private structure. > + * > + * @param priv > + * Pointer to private structure. > + */ > +static void > +priv_unlock(struct priv *priv) > +{ > + rte_spinlock_unlock(&priv->lock); > +} > + > +/* Allocate a buffer on the stack and fill it with a printf format string. */ > +#define MKSTR(name, ...) \ > + char name[snprintf(NULL, 0, __VA_ARGS__) + 1]; \ > + \ > + snprintf(name, sizeof(name), __VA_ARGS__) > + > +/** > + * Get interface name from private structure. > + * > + * @param[in] priv > + * Pointer to private structure. > + * @param[out] ifname > + * Interface name output buffer. > + * > + * @return > + * 0 on success, -1 on failure and errno is set. > + */ > +static int > +priv_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE]) > +{ > + int ret = -1; > + DIR *dir; > + struct dirent *dent; > + > + { > + MKSTR(path, "%s/device/net", priv->ctx->device->ibdev_path); > + > + dir = opendir(path); > + if (dir == NULL) > + return -1; > + } > + while ((dent = readdir(dir)) != NULL) { > + char *name = dent->d_name; > + FILE *file; > + unsigned int dev_id; > + int r; > + > + if ((name[0] == '.') && > + ((name[1] == '\0') || > + ((name[1] == '.') && (name[2] == '\0')))) > + continue; > + > + MKSTR(path, "%s/device/net/%s/dev_id", > + priv->ctx->device->ibdev_path, name); > + > + file = fopen(path, "rb"); > + if (file == NULL) > + continue; > + r = fscanf(file, "%x", &dev_id); > + fclose(file); > + if ((r == 1) && (dev_id == (priv->port - 1u))) { > + snprintf(*ifname, sizeof(*ifname), "%s", name); > + ret = 0; > + break; > + } > + } > + closedir(dir); > + return ret; > +} > + > +/** > + * 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; > + > + MKSTR(path, "%s/device/net/%s/%s", priv->ctx->device->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->ctx->device->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; > + } > + return 0; > +} > + > +/** > + * Perform ifreq ioctl() on associated Ethernet device. > + * > + * @param[in] priv > + * Pointer to private structure. > + * @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. > + */ > +static int > +priv_ifreq(const struct priv *priv, int req, struct ifreq *ifr) > +{ > + int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); > + int ret = -1; > + > + if (sock == -1) > + return ret; > + if (priv_get_ifname(priv, &ifr->ifr_name) == 0) > + ret = ioctl(sock, req, ifr); > + close(sock); > + return ret; > +} > + > +/** > + * Get device MTU. > + * > + * @param priv > + * Pointer to private structure. > + * @param[out] mtu > + * MTU value output buffer. > + * > + * @return > + * 0 on success, -1 on failure and errno is set. > + */ > +static 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; > +} > + > +/** > + * Set device MTU. > + * > + * @param priv > + * Pointer to private structure. > + * @param mtu > + * MTU value to set. > + * > + * @return > + * 0 on success, -1 on failure and errno is set. > + */ > +static int > +priv_set_mtu(struct priv *priv, uint16_t mtu) > +{ > + return priv_set_sysfs_ulong(priv, "mtu", mtu); > +} > + > +/** > + * Set device flags. > + * > + * @param priv > + * Pointer to private structure. > + * @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. > + */ > +static int > +priv_set_flags(struct priv *priv, unsigned int keep, unsigned int flags) > +{ > + unsigned long tmp; > + > + if (priv_get_sysfs_ulong(priv, "flags", &tmp) == -1) > + return -1; > + tmp &= keep; > + tmp |= flags; > + return priv_set_sysfs_ulong(priv, "flags", tmp); > +} > + > +/* Device configuration. */ > + > +static int > +rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc, > + unsigned int socket, const struct rte_eth_rxconf *conf, > + struct rte_mempool *mp); > + > +static void > +rxq_cleanup(struct rxq *rxq); > + > +/** > + * Ethernet device configuration. > + * > + * Prepare the driver for a given number of TX and RX queues. > + * Allocate parent RSS queue when several RX queues are requested. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +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 txqs_n = dev->data->nb_tx_queues; > + unsigned int tmp; > + int ret; > + > + 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); > + priv->txqs_n = txqs_n; > + } > + if (rxqs_n == priv->rxqs_n) > + return 0; > + INFO("%p: RX queues number update: %u -> %u", > + (void *)dev, priv->rxqs_n, rxqs_n); > + /* If RSS is enabled, disable it first. */ > + if (priv->rss) { > + unsigned int i; > + > + /* Only if there are no remaining child RX queues. */ > + for (i = 0; (i != priv->rxqs_n); ++i) > + if ((*priv->rxqs)[i] != NULL) > + return EINVAL; > + rxq_cleanup(&priv->rxq_parent); > + priv->rss = 0; > + priv->rxqs_n = 0; > + } > + if (rxqs_n <= 1) { > + /* Nothing else to do. */ > + priv->rxqs_n = rxqs_n; > + return 0; > + } > + /* Allocate a new RSS parent queue if supported by hardware. */ > + if (!priv->hw_rss) { > + ERROR("%p: only a single RX queue can be configured when" > + " hardware doesn't support RSS", > + (void *)dev); > + return EINVAL; > + } > + /* Fail if hardware doesn't support that many RSS queues. */ > + if (rxqs_n >= priv->max_rss_tbl_sz) { > + ERROR("%p: only %u RX queues can be configured for RSS", > + (void *)dev, priv->max_rss_tbl_sz); > + return EINVAL; > + } > + priv->rss = 1; > + tmp = priv->rxqs_n; > + priv->rxqs_n = rxqs_n; > + ret = rxq_setup(dev, &priv->rxq_parent, 0, 0, NULL, NULL); > + if (!ret) > + return 0; > + /* Failure, rollback. */ > + priv->rss = 0; > + priv->rxqs_n = tmp; > + assert(ret > 0); > + return ret; > +} > + > +/** > + * DPDK callback for Ethernet device configuration. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_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; > +} > + > +/* TX queues handling. */ > + > +/** > + * Allocate TX queue elements. > + * > + * @param txq > + * Pointer to TX queue structure. > + * @param elts_n > + * Number of elements to allocate. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +txq_alloc_elts(struct txq *txq, unsigned int elts_n) > +{ > + unsigned int i; > + struct txq_elt (*elts)[elts_n] = > + rte_calloc_socket("TXQ", 1, sizeof(*elts), 0, txq->socket); > + linear_t (*elts_linear)[elts_n] = > + rte_calloc_socket("TXQ", 1, sizeof(*elts_linear), 0, > + txq->socket); > + struct ibv_mr *mr_linear = NULL; > + int ret = 0; > + > + if ((elts == NULL) || (elts_linear == NULL)) { > + ERROR("%p: can't allocate packets array", (void *)txq); > + ret = ENOMEM; > + goto error; > + } > + mr_linear = > + ibv_reg_mr(txq->priv->pd, elts_linear, sizeof(*elts_linear), > + (IBV_ACCESS_LOCAL_WRITE | IBV_ACCESS_REMOTE_WRITE)); > + if (mr_linear == NULL) { > + ERROR("%p: unable to configure MR, ibv_reg_mr() failed", > + (void *)txq); > + ret = EINVAL; > + goto error; > + } > + for (i = 0; (i != elts_n); ++i) { > + struct txq_elt *elt = &(*elts)[i]; > + mlx4_send_wr_t *wr = &elt->wr; > + > + /* Configure WR. */ > + WR_ID(wr->wr_id).id = i; > + WR_ID(wr->wr_id).offset = 0; > + wr->sg_list = &elt->sges[0]; > + wr->opcode = IBV_WR_SEND; > + /* Other fields are updated during TX. */ > + } > + DEBUG("%p: allocated and configured %u WRs", (void *)txq, elts_n); > + txq->elts_n = elts_n; > + txq->elts = elts; > + txq->elts_head = 0; > + txq->elts_tail = 0; > + txq->elts_comp = 0; > + txq->elts_linear = elts_linear; > + txq->mr_linear = mr_linear; > + assert(ret == 0); > + return 0; > +error: > + if (mr_linear != NULL) > + claim_zero(ibv_dereg_mr(mr_linear)); > + > + rte_free(elts_linear); > + rte_free(elts); > + > + DEBUG("%p: failed, freed everything", (void *)txq); > + assert(ret > 0); > + return ret; > +} > + > +/** > + * Free TX queue elements. > + * > + * @param txq > + * Pointer to TX queue structure. > + */ > +static void > +txq_free_elts(struct txq *txq) > +{ > + unsigned int i; > + unsigned int elts_n = txq->elts_n; > + struct txq_elt (*elts)[elts_n] = txq->elts; > + linear_t (*elts_linear)[elts_n] = txq->elts_linear; > + struct ibv_mr *mr_linear = txq->mr_linear; > + > + DEBUG("%p: freeing WRs", (void *)txq); > + txq->elts_n = 0; > + txq->elts = NULL; > + txq->elts_linear = NULL; > + txq->mr_linear = NULL; > + if (mr_linear != NULL) > + claim_zero(ibv_dereg_mr(mr_linear)); > + > + rte_free(elts_linear); > + if (elts == NULL) > + return; > + for (i = 0; (i != elemof(*elts)); ++i) { > + struct txq_elt *elt = &(*elts)[i]; > + > + if (WR_ID(elt->wr.wr_id).offset == 0) > + continue; > + rte_pktmbuf_free((void *)(elt->sges[0].addr - > + WR_ID(elt->wr.wr_id).offset)); > + } > + rte_free(elts); > +} > + > + > +/** > + * Clean up a TX queue. > + * > + * Destroy objects, free allocated memory and reset the structure for reuse. > + * > + * @param txq > + * Pointer to TX queue structure. > + */ > +static void > +txq_cleanup(struct txq *txq) > +{ > + size_t i; > + > + DEBUG("cleaning up %p", (void *)txq); > + txq_free_elts(txq); > + if (txq->qp != NULL) > + claim_zero(ibv_destroy_qp(txq->qp)); > + if (txq->cq != NULL) > + claim_zero(ibv_destroy_cq(txq->cq)); > + for (i = 0; (i != elemof(txq->mp2mr)); ++i) { > + if (txq->mp2mr[i].mp == NULL) > + break; > + assert(txq->mp2mr[i].mr != NULL); > + claim_zero(ibv_dereg_mr(txq->mp2mr[i].mr)); > + } > + memset(txq, 0, sizeof(*txq)); > +} > + > +/** > + * Manage TX completions. > + * > + * When sending a burst, mlx4_tx_burst() posts several WRs. > + * To improve performance, a completion event is only required for the last of > + * them. Doing so discards completion information for other WRs, but this > + * information would not be used anyway. > + * > + * @param txq > + * Pointer to TX queue structure. > + * > + * @return > + * 0 on success, -1 on failure. > + */ > +static int > +txq_complete(struct txq *txq) > +{ > + unsigned int elts_comp = txq->elts_comp; > + unsigned int elts_tail; > + const unsigned int elts_n = txq->elts_n; > + struct ibv_wc wcs[elts_comp]; > + int wcs_n; > + > + if (unlikely(elts_comp == 0)) > + return 0; > +#ifdef DEBUG_SEND > + DEBUG("%p: processing %u work requests completions", > + (void *)txq, elts_comp); > +#endif > + wcs_n = ibv_poll_cq(txq->cq, elts_comp, wcs); > + if (unlikely(wcs_n == 0)) > + return 0; > + if (unlikely(wcs_n < 0)) { > + DEBUG("%p: ibv_poll_cq() failed (wcs_n=%d)", > + (void *)txq, wcs_n); > + return -1; > + } > + elts_comp -= wcs_n; > + assert(elts_comp <= txq->elts_comp); > + /* > + * Work Completion ID contains the associated element index in > + * (*txq->elts)[]. Since WCs are returned in order, we only need to > + * look at the last WC to clear older Work Requests. > + * > + * Assume WC status is successful as nothing can be done about it > + * anyway. > + */ > + elts_tail = WR_ID(wcs[wcs_n - 1].wr_id).id; > + /* Consume the last WC. */ > + if (++elts_tail >= elts_n) > + elts_tail = 0; > + txq->elts_tail = elts_tail; > + txq->elts_comp = elts_comp; > + return 0; > +} > + > +/** > + * Get Memory Region (MR) <-> Memory Pool (MP) association from txq->mp2mr[]. > + * Add MP to txq->mp2mr[] if it's not registered yet. If mp2mr[] is full, > + * remove an entry first. > + * > + * @param txq > + * Pointer to TX queue structure. > + * @param[in] mp > + * Memory Pool for which a Memory Region lkey must be returned. > + * > + * @return > + * mr->lkey on success, (uint32_t)-1 on failure. > + */ > +static uint32_t > +txq_mp2mr(struct txq *txq, struct rte_mempool *mp) > +{ > + unsigned int i; > + struct ibv_mr *mr; > + > + for (i = 0; (i != elemof(txq->mp2mr)); ++i) { > + if (unlikely(txq->mp2mr[i].mp == NULL)) { > + /* Unknown MP, add a new MR for it. */ > + break; > + } > + if (txq->mp2mr[i].mp == mp) { > + assert(txq->mp2mr[i].lkey != (uint32_t)-1); > + assert(txq->mp2mr[i].mr->lkey == txq->mp2mr[i].lkey); > + return txq->mp2mr[i].lkey; > + } > + } > + /* Add a new entry, register MR first. */ > + DEBUG("%p: discovered new memory pool %p", (void *)txq, (void *)mp); > + mr = ibv_reg_mr(txq->priv->pd, > + (void *)mp->elt_va_start, > + (mp->elt_va_end - mp->elt_va_start), > + (IBV_ACCESS_LOCAL_WRITE | IBV_ACCESS_REMOTE_WRITE)); > + if (unlikely(mr == NULL)) { > + DEBUG("%p: unable to configure MR, ibv_reg_mr() failed.", > + (void *)txq); > + return (uint32_t)-1; > + } > + if (unlikely(i == elemof(txq->mp2mr))) { > + /* Table is full, remove oldest entry. */ > + DEBUG("%p: MR <-> MP table full, dropping oldest entry.", > + (void *)txq); > + --i; > + claim_zero(ibv_dereg_mr(txq->mp2mr[i].mr)); > + memmove(&txq->mp2mr[0], &txq->mp2mr[1], > + (sizeof(txq->mp2mr) - sizeof(txq->mp2mr[0]))); > + } > + /* Store the new entry. */ > + txq->mp2mr[i].mp = mp; > + txq->mp2mr[i].mr = mr; > + txq->mp2mr[i].lkey = mr->lkey; > + DEBUG("%p: new MR lkey for MP %p: 0x%08" PRIu32, > + (void *)txq, (void *)mp, txq->mp2mr[i].lkey); > + return txq->mp2mr[i].lkey; > +} > + > +/** > + * Copy scattered mbuf contents to a single linear buffer. > + * > + * @param[out] linear > + * Linear output buffer. > + * @param[in] buf > + * Scattered input buffer. > + * > + * @return > + * Number of bytes copied to the output buffer or 0 if not large enough. > + */ > +static unsigned int > +linearize_mbuf(linear_t *linear, struct rte_mbuf *buf) > +{ > + unsigned int size = 0; > + unsigned int offset; > + > + do { > + unsigned int len = DATA_LEN(buf); > + > + offset = size; > + size += len; > + if (unlikely(size > sizeof(*linear))) > + return 0; > + memcpy(&(*linear)[offset], > + rte_pktmbuf_mtod(buf, uint8_t *), > + len); > + buf = NEXT(buf); > + } while (buf != NULL); > + return size; > +} > + > +/** > + * DPDK callback for TX. > + * > + * @param dpdk_txq > + * Generic pointer to TX queue structure. > + * @param[in] pkts > + * Packets to transmit. > + * @param pkts_n > + * Number of packets in array. > + * > + * @return > + * Number of packets successfully transmitted (<= pkts_n). > + */ > +static uint16_t > +mlx4_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) > +{ > + struct txq *txq = (struct txq *)dpdk_txq; > + mlx4_send_wr_t head; > + mlx4_send_wr_t **wr_next = &head.next; > + mlx4_send_wr_t *bad_wr; > + unsigned int elts_head = txq->elts_head; > + const unsigned int elts_tail = txq->elts_tail; > + const unsigned int elts_n = txq->elts_n; > + unsigned int i; > + unsigned int max; > + int err; > + > + txq_complete(txq); > + max = (elts_n - (elts_head - elts_tail)); > + if (max > elts_n) > + max -= elts_n; > + assert(max >= 1); > + assert(max <= elts_n); > + /* Always leave one free entry in the ring. */ > + --max; > + if (max == 0) > + return 0; > + if (max > pkts_n) > + max = pkts_n; > + for (i = 0; (i != max); ++i) { > + struct rte_mbuf *buf = pkts[i]; > + struct txq_elt *elt = &(*txq->elts)[elts_head]; > + mlx4_send_wr_t *wr = &elt->wr; > + unsigned int segs = NB_SEGS(buf); > +#if (MLX4_PMD_MAX_INLINE > 0) || defined(MLX4_PMD_SOFT_COUNTERS) > + unsigned int sent_size = 0; > +#endif > + unsigned int j; > + int linearize = 0; > + > + /* Clean up old buffer. */ > + if (likely(WR_ID(wr->wr_id).offset != 0)) { > + struct rte_mbuf *tmp = (void *) > + (elt->sges[0].addr - WR_ID(wr->wr_id).offset); > + > + /* Faster than rte_pktmbuf_free(). */ > + do { > + struct rte_mbuf *next = NEXT(tmp); > + > + rte_pktmbuf_free_seg(tmp); > + tmp = next; > + } while (tmp != NULL); > + } > +#ifndef NDEBUG > + /* For assert(). */ > + WR_ID(wr->wr_id).offset = 0; > + for (j = 0; ((int)j < wr->num_sge); ++j) { > + elt->sges[j].addr = 0; > + elt->sges[j].length = 0; > + elt->sges[j].lkey = 0; > + } > + wr->next = NULL; > + wr->num_sge = 0; > +#endif > + /* Sanity checks, most of which are only relevant with > + * debugging enabled. */ > + assert(WR_ID(wr->wr_id).id == elts_head); > + assert(WR_ID(wr->wr_id).offset == 0); > + assert(wr->next == NULL); > + assert(wr->sg_list == &elt->sges[0]); > + assert(wr->num_sge == 0); > + assert(wr->opcode == IBV_WR_SEND); > + /* When there are too many segments, extra segments are > + * linearized in the last SGE. */ > + if (unlikely(segs > elemof(elt->sges))) { > + segs = (elemof(elt->sges) - 1); > + linearize = 1; > + } > + /* Set WR fields. */ > + assert(((uintptr_t)rte_pktmbuf_mtod(buf, char *) - > + (uintptr_t)buf) <= 0xffff); > + WR_ID(wr->wr_id).offset = > + ((uintptr_t)rte_pktmbuf_mtod(buf, char *) - > + (uintptr_t)buf); > + wr->num_sge = segs; > + /* Register segments as SGEs. */ > + for (j = 0; (j != segs); ++j) { > + struct ibv_sge *sge = &elt->sges[j]; > + uint32_t lkey; > + > + /* Retrieve Memory Region key for this memory pool. */ > + lkey = txq_mp2mr(txq, buf->pool); > + if (unlikely(lkey == (uint32_t)-1)) { > + /* MR does not exist. */ > + DEBUG("%p: unable to get MP <-> MR" > + " association", (void *)txq); > + /* Clean up TX element. */ > + WR_ID(elt->wr.wr_id).offset = 0; > +#ifndef NDEBUG > + /* For assert(). */ > + while (j) { > + --j; > + --sge; > + sge->addr = 0; > + sge->length = 0; > + sge->lkey = 0; > + } > + wr->num_sge = 0; > +#endif > + goto stop; > + } > + /* Sanity checks, only relevant with debugging > + * enabled. */ > + assert(sge->addr == 0); > + assert(sge->length == 0); > + assert(sge->lkey == 0); > + /* Update SGE. */ > + sge->addr = (uintptr_t)rte_pktmbuf_mtod(buf, char *); > + if (txq->priv->vf) > + rte_prefetch0((volatile void *)sge->addr); > + sge->length = DATA_LEN(buf); > + sge->lkey = lkey; > +#if (MLX4_PMD_MAX_INLINE > 0) || defined(MLX4_PMD_SOFT_COUNTERS) > + sent_size += sge->length; > +#endif > + buf = NEXT(buf); > + } > + /* If buf is not NULL here and is not going to be linearized, > + * nb_segs is not valid. */ > + assert(j == segs); > + assert((buf == NULL) || (linearize)); > + /* Linearize extra segments. */ > + if (linearize) { > + struct ibv_sge *sge = &elt->sges[segs]; > + linear_t *linear = &(*txq->elts_linear)[elts_head]; > + unsigned int size = linearize_mbuf(linear, buf); > + > + assert(segs == (elemof(elt->sges) - 1)); > + if (size == 0) { > + /* Invalid packet. */ > + DEBUG("%p: packet too large to be linearized.", > + (void *)txq); > + /* Clean up TX element. */ > + WR_ID(elt->wr.wr_id).offset = 0; > +#ifndef NDEBUG > + /* For assert(). */ > + while (j) { > + --j; > + --sge; > + sge->addr = 0; > + sge->length = 0; > + sge->lkey = 0; > + } > + wr->num_sge = 0; > +#endif > + goto stop; > + } > + /* If MLX4_PMD_SGE_WR_N is 1, free mbuf immediately > + * and clear offset from WR ID. */ > + if (elemof(elt->sges) == 1) { > + do { > + struct rte_mbuf *next = NEXT(buf); > + > + rte_pktmbuf_free_seg(buf); > + buf = next; > + } while (buf != NULL); > + WR_ID(wr->wr_id).offset = 0; > + } > + /* Set WR fields and fill SGE with linear buffer. */ > + ++wr->num_sge; > + /* Sanity checks, only relevant with debugging > + * enabled. */ > + assert(sge->addr == 0); > + assert(sge->length == 0); > + assert(sge->lkey == 0); > + /* Update SGE. */ > + sge->addr = (uintptr_t)&(*linear)[0]; > + sge->length = size; > + sge->lkey = txq->mr_linear->lkey; > +#if (MLX4_PMD_MAX_INLINE > 0) || defined(MLX4_PMD_SOFT_COUNTERS) > + sent_size += size; > +#endif > + } > + /* Link WRs together for ibv_post_send(). */ > + *wr_next = wr; > + wr_next = &wr->next; > +#if MLX4_PMD_MAX_INLINE > 0 > + if (sent_size <= txq->max_inline) > + wr->send_flags = IBV_SEND_INLINE; > + else > +#endif > + wr->send_flags = 0; > + if (++elts_head >= elts_n) > + elts_head = 0; > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increment sent bytes counter. */ > + txq->stats.obytes += sent_size; > +#endif > + } > +stop: > + /* Take a shortcut if nothing must be sent. */ > + if (unlikely(i == 0)) > + return 0; > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increment sent packets counter. */ > + txq->stats.opackets += i; > +#endif > + *wr_next = NULL; > + /* The last WR is the only one asking for a completion event. */ > + containerof(wr_next, mlx4_send_wr_t, next)-> > + send_flags |= IBV_SEND_SIGNALED; > + err = mlx4_post_send(txq->qp, head.next, &bad_wr); > + if (unlikely(err)) { > + unsigned int unsent = 0; > + > + /* An error occurred, completion event is lost. Fix counters. */ > + while (bad_wr != NULL) { > + struct txq_elt *elt = > + containerof(bad_wr, struct txq_elt, wr); > + mlx4_send_wr_t *wr = &elt->wr; > + mlx4_send_wr_t *next = wr->next; > +#if defined(MLX4_PMD_SOFT_COUNTERS) || !defined(NDEBUG) > + unsigned int j; > +#endif > + > + assert(wr == bad_wr); > + /* Clean up TX element without freeing it, caller > + * should take care of this. */ > + WR_ID(elt->wr.wr_id).offset = 0; > +#ifdef MLX4_PMD_SOFT_COUNTERS > + for (j = 0; ((int)j < wr->num_sge); ++j) > + txq->stats.obytes -= wr->sg_list[j].length; > +#endif > + ++unsent; > +#ifndef NDEBUG > + /* For assert(). */ > + for (j = 0; ((int)j < wr->num_sge); ++j) { > + elt->sges[j].addr = 0; > + elt->sges[j].length = 0; > + elt->sges[j].lkey = 0; > + } > + wr->next = NULL; > + wr->num_sge = 0; > +#endif > + bad_wr = next; > + } > +#ifdef MLX4_PMD_SOFT_COUNTERS > + txq->stats.opackets -= unsent; > +#endif > + assert(i >= unsent); > + i -= unsent; > + /* "Unsend" remaining packets. */ > + elts_head -= unsent; > + if (elts_head >= elts_n) > + elts_head += elts_n; > + assert(elts_head < elts_n); > + DEBUG("%p: mlx4_post_send() failed, %u unprocessed WRs: %s", > + (void *)txq, unsent, > + ((err <= -1) ? "Internal error" : strerror(err))); > + } else > + ++txq->elts_comp; > + txq->elts_head = elts_head; > + return i; > +} > + > +/** > + * Configure a TX queue. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param txq > + * Pointer to TX queue structure. > + * @param desc > + * Number of descriptors to configure in queue. > + * @param socket > + * NUMA socket on which memory must be allocated. > + * @param[in] conf > + * Thresholds parameters. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +txq_setup(struct rte_eth_dev *dev, struct txq *txq, uint16_t desc, > + unsigned int socket, const struct rte_eth_txconf *conf) > +{ > + struct priv *priv = dev->data->dev_private; > + struct txq tmpl = { > + .priv = priv, > + .socket = socket > + }; > + union { > + struct ibv_qp_init_attr init; > + struct ibv_exp_qp_attr mod; > + } attr; > + int ret = 0; > + > + (void)conf; /* Thresholds configuration (ignored). */ > + if ((desc == 0) || (desc % MLX4_PMD_SGE_WR_N)) { > + ERROR("%p: invalid number of TX descriptors (must be a" > + " multiple of %d)", (void *)dev, desc); > + return EINVAL; > + } > + desc /= MLX4_PMD_SGE_WR_N; > + /* MRs will be registered in mp2mr[] later. */ > + tmpl.cq = ibv_create_cq(priv->ctx, desc, NULL, NULL, 0); > + if (tmpl.cq == NULL) { > + ret = ENOMEM; > + ERROR("%p: CQ creation failure: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + DEBUG("priv->device_attr.max_qp_wr is %d", > + priv->device_attr.max_qp_wr); > + DEBUG("priv->device_attr.max_sge is %d", > + priv->device_attr.max_sge); > + attr.init = (struct ibv_qp_init_attr){ > + /* CQ to be associated with the send queue. */ > + .send_cq = tmpl.cq, > + /* CQ to be associated with the receive queue. */ > + .recv_cq = tmpl.cq, > + .cap = { > + /* Max number of outstanding WRs. */ > + .max_send_wr = ((priv->device_attr.max_qp_wr < desc) ? > + priv->device_attr.max_qp_wr : > + desc), > + /* Max number of scatter/gather elements in a WR. */ > + .max_send_sge = ((priv->device_attr.max_sge < > + MLX4_PMD_SGE_WR_N) ? > + priv->device_attr.max_sge : > + MLX4_PMD_SGE_WR_N), > +#if MLX4_PMD_MAX_INLINE > 0 > + .max_inline_data = MLX4_PMD_MAX_INLINE, > +#endif > + }, > + .qp_type = IBV_QPT_RAW_PACKET, > + /* Do *NOT* enable this, completions events are managed per > + * TX burst. */ > + .sq_sig_all = 0 > + }; > + tmpl.qp = ibv_create_qp(priv->pd, &attr.init); > + if (tmpl.qp == NULL) { > + ret = (errno ? errno : EINVAL); > + ERROR("%p: QP creation failure: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > +#if MLX4_PMD_MAX_INLINE > 0 > + /* ibv_create_qp() updates this value. */ > + tmpl.max_inline = attr.init.cap.max_inline_data; > +#endif > + attr.mod = (struct ibv_exp_qp_attr){ > + /* Move the QP to this state. */ > + .qp_state = IBV_QPS_INIT, > + /* Primary port number. */ > + .port_num = priv->port > + }; > + ret = ibv_exp_modify_qp(tmpl.qp, &attr.mod, > + (IBV_EXP_QP_STATE | IBV_EXP_QP_PORT)); > + if (ret) { > + ERROR("%p: QP state to IBV_QPS_INIT failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + ret = txq_alloc_elts(&tmpl, desc); > + if (ret) { > + ERROR("%p: TXQ allocation failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + attr.mod = (struct ibv_exp_qp_attr){ > + .qp_state = IBV_QPS_RTR > + }; > + ret = ibv_exp_modify_qp(tmpl.qp, &attr.mod, IBV_EXP_QP_STATE); > + if (ret) { > + ERROR("%p: QP state to IBV_QPS_RTR failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + attr.mod.qp_state = IBV_QPS_RTS; > + ret = ibv_exp_modify_qp(tmpl.qp, &attr.mod, IBV_EXP_QP_STATE); > + if (ret) { > + ERROR("%p: QP state to IBV_QPS_RTS failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + /* Clean up txq in case we're reinitializing it. */ > + DEBUG("%p: cleaning-up old txq just in case", (void *)txq); > + txq_cleanup(txq); > + *txq = tmpl; > + DEBUG("%p: txq updated with %p", (void *)txq, (void *)&tmpl); > + assert(ret == 0); > + return 0; > +error: > + txq_cleanup(&tmpl); > + assert(ret > 0); > + return ret; > +} > + > +/** > + * DPDK callback to configure a TX queue. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param idx > + * TX queue index. > + * @param desc > + * Number of descriptors to configure in queue. > + * @param socket > + * NUMA socket on which memory must be allocated. > + * @param[in] conf > + * Thresholds parameters. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, > + unsigned int socket, const struct rte_eth_txconf *conf) > +{ > + struct priv *priv = dev->data->dev_private; > + struct txq *txq = (*priv->txqs)[idx]; > + int ret; > + > + priv_lock(priv); > + DEBUG("%p: configuring queue %u for %u descriptors", > + (void *)dev, idx, desc); > + if (idx >= priv->txqs_n) { > + ERROR("%p: queue index out of range (%u >= %u)", > + (void *)dev, idx, priv->txqs_n); > + priv_unlock(priv); > + return -EOVERFLOW; > + } > + if (txq != NULL) { > + DEBUG("%p: reusing already allocated queue index %u (%p)", > + (void *)dev, idx, (void *)txq); > + if (priv->started) { > + priv_unlock(priv); > + return -EEXIST; > + } > + (*priv->txqs)[idx] = NULL; > + txq_cleanup(txq); > + } else { > + txq = rte_calloc_socket("TXQ", 1, sizeof(*txq), 0, socket); > + if (txq == NULL) { > + ERROR("%p: unable to allocate queue index %u", > + (void *)dev, idx); > + priv_unlock(priv); > + return -ENOMEM; > + } > + } > + ret = txq_setup(dev, txq, desc, socket, conf); > + if (ret) > + rte_free(txq); > + else { > + txq->stats.idx = idx; > + DEBUG("%p: adding TX queue %p to list", > + (void *)dev, (void *)txq); > + (*priv->txqs)[idx] = txq; > + /* Update send callback. */ > + dev->tx_pkt_burst = mlx4_tx_burst; > + } > + priv_unlock(priv); > + return -ret; > +} > + > +/** > + * DPDK callback to release a TX queue. > + * > + * @param dpdk_txq > + * Generic TX queue pointer. > + */ > +static void > +mlx4_tx_queue_release(void *dpdk_txq) > +{ > + struct txq *txq = (struct txq *)dpdk_txq; > + struct priv *priv; > + unsigned int i; > + > + if (txq == NULL) > + return; > + priv = txq->priv; > + priv_lock(priv); > + for (i = 0; (i != priv->txqs_n); ++i) > + if ((*priv->txqs)[i] == txq) { > + DEBUG("%p: removing TX queue %p from list", > + (void *)priv->dev, (void *)txq); > + (*priv->txqs)[i] = NULL; > + break; > + } > + txq_cleanup(txq); > + rte_free(txq); > + priv_unlock(priv); > +} > + > +/* RX queues handling. */ > + > +/** > + * Allocate RX queue elements with scattered packets support. > + * > + * @param rxq > + * Pointer to RX queue structure. > + * @param elts_n > + * Number of elements to allocate. > + * @param[in] pool > + * If not NULL, fetch buffers from this array instead of allocating them > + * with rte_pktmbuf_alloc(). > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_alloc_elts_sp(struct rxq *rxq, unsigned int elts_n, > + struct rte_mbuf **pool) > +{ > + unsigned int i; > + struct rxq_elt_sp (*elts)[elts_n] = > + rte_calloc_socket("RXQ elements", 1, sizeof(*elts), 0, > + rxq->socket); > + int ret = 0; > + > + if (elts == NULL) { > + ERROR("%p: can't allocate packets array", (void *)rxq); > + ret = ENOMEM; > + goto error; > + } > + /* For each WR (packet). */ > + for (i = 0; (i != elts_n); ++i) { > + unsigned int j; > + struct rxq_elt_sp *elt = &(*elts)[i]; > + struct ibv_recv_wr *wr = &elt->wr; > + struct ibv_sge (*sges)[(elemof(elt->sges))] = &elt->sges; > + > + /* These two arrays must have the same size. */ > + assert(elemof(elt->sges) == elemof(elt->bufs)); > + /* Configure WR. */ > + wr->wr_id = i; > + wr->next = &(*elts)[(i + 1)].wr; > + wr->sg_list = &(*sges)[0]; > + wr->num_sge = elemof(*sges); > + /* For each SGE (segment). */ > + for (j = 0; (j != elemof(elt->bufs)); ++j) { > + struct ibv_sge *sge = &(*sges)[j]; > + struct rte_mbuf *buf; > + > + if (pool != NULL) { > + buf = *(pool++); > + assert(buf != NULL); > + rte_pktmbuf_reset(buf); > + } else > + buf = rte_pktmbuf_alloc(rxq->mp); > + if (buf == NULL) { > + assert(pool == NULL); > + ERROR("%p: empty mbuf pool", (void *)rxq); > + ret = ENOMEM; > + goto error; > + } > + elt->bufs[j] = buf; > + /* Headroom is reserved by rte_pktmbuf_alloc(). */ > + assert(DATA_OFF(buf) == RTE_PKTMBUF_HEADROOM); > + /* Buffer is supposed to be empty. */ > + assert(rte_pktmbuf_data_len(buf) == 0); > + assert(rte_pktmbuf_pkt_len(buf) == 0); > + /* sge->addr must be able to store a pointer. */ > + assert(sizeof(sge->addr) >= sizeof(uintptr_t)); > + if (j == 0) { > + /* The first SGE keeps its headroom. */ > + sge->addr = (uintptr_t)rte_pktmbuf_mtod(buf, > + char *); > + sge->length = (buf->buf_len - > + RTE_PKTMBUF_HEADROOM); > + } else { > + /* Subsequent SGEs lose theirs. */ > + assert(DATA_OFF(buf) == RTE_PKTMBUF_HEADROOM); > + SET_DATA_OFF(buf, 0); > + sge->addr = (uintptr_t)buf->buf_addr; > + sge->length = buf->buf_len; > + } > + sge->lkey = rxq->mr->lkey; > + /* Redundant check for tailroom. */ > + assert(sge->length == rte_pktmbuf_tailroom(buf)); > + } > + } > + /* The last WR pointer must be NULL. */ > + (*elts)[(i - 1)].wr.next = NULL; > + DEBUG("%p: allocated and configured %u WRs (%zu segments)", > + (void *)rxq, elts_n, (elts_n * elemof((*elts)[0].sges))); > + rxq->elts_n = elts_n; > + rxq->elts.sp = elts; > + assert(ret == 0); > + return 0; > +error: > + if (elts != NULL) { > + assert(pool == NULL); > + for (i = 0; (i != elemof(*elts)); ++i) { > + unsigned int j; > + struct rxq_elt_sp *elt = &(*elts)[i]; > + > + for (j = 0; (j != elemof(elt->bufs)); ++j) { > + struct rte_mbuf *buf = elt->bufs[j]; > + > + if (buf != NULL) > + rte_pktmbuf_free_seg(buf); > + } > + } > + rte_free(elts); > + } > + DEBUG("%p: failed, freed everything", (void *)rxq); > + assert(ret > 0); > + return ret; > +} > + > +/** > + * Free RX queue elements with scattered packets support. > + * > + * @param rxq > + * Pointer to RX queue structure. > + */ > +static void > +rxq_free_elts_sp(struct rxq *rxq) > +{ > + unsigned int i; > + unsigned int elts_n = rxq->elts_n; > + struct rxq_elt_sp (*elts)[elts_n] = rxq->elts.sp; > + > + DEBUG("%p: freeing WRs", (void *)rxq); > + rxq->elts_n = 0; > + rxq->elts.sp = NULL; > + if (elts == NULL) > + return; > + for (i = 0; (i != elemof(*elts)); ++i) { > + unsigned int j; > + struct rxq_elt_sp *elt = &(*elts)[i]; > + > + for (j = 0; (j != elemof(elt->bufs)); ++j) { > + struct rte_mbuf *buf = elt->bufs[j]; > + > + if (buf != NULL) > + rte_pktmbuf_free_seg(buf); > + } > + } > + rte_free(elts); > +} > + > +/** > + * Allocate RX queue elements. > + * > + * @param rxq > + * Pointer to RX queue structure. > + * @param elts_n > + * Number of elements to allocate. > + * @param[in] pool > + * If not NULL, fetch buffers from this array instead of allocating them > + * with rte_pktmbuf_alloc(). > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_alloc_elts(struct rxq *rxq, unsigned int elts_n, struct rte_mbuf **pool) > +{ > + unsigned int i; > + struct rxq_elt (*elts)[elts_n] = > + rte_calloc_socket("RXQ elements", 1, sizeof(*elts), 0, > + rxq->socket); > + int ret = 0; > + > + if (elts == NULL) { > + ERROR("%p: can't allocate packets array", (void *)rxq); > + ret = ENOMEM; > + goto error; > + } > + /* For each WR (packet). */ > + for (i = 0; (i != elts_n); ++i) { > + struct rxq_elt *elt = &(*elts)[i]; > + struct ibv_recv_wr *wr = &elt->wr; > + struct ibv_sge *sge = &(*elts)[i].sge; > + struct rte_mbuf *buf; > + > + if (pool != NULL) { > + buf = *(pool++); > + assert(buf != NULL); > + rte_pktmbuf_reset(buf); > + } else > + buf = rte_pktmbuf_alloc(rxq->mp); > + if (buf == NULL) { > + assert(pool == NULL); > + ERROR("%p: empty mbuf pool", (void *)rxq); > + ret = ENOMEM; > + goto error; > + } > + /* Configure WR. Work request ID contains its own index in > + * the elts array and the offset between SGE buffer header and > + * its data. */ > + WR_ID(wr->wr_id).id = i; > + WR_ID(wr->wr_id).offset = > + (((uintptr_t)buf->buf_addr + RTE_PKTMBUF_HEADROOM) - > + (uintptr_t)buf); > + wr->next = &(*elts)[(i + 1)].wr; > + wr->sg_list = sge; > + wr->num_sge = 1; > + /* Headroom is reserved by rte_pktmbuf_alloc(). */ > + assert(DATA_OFF(buf) == RTE_PKTMBUF_HEADROOM); > + /* Buffer is supposed to be empty. */ > + assert(rte_pktmbuf_data_len(buf) == 0); > + assert(rte_pktmbuf_pkt_len(buf) == 0); > + /* sge->addr must be able to store a pointer. */ > + assert(sizeof(sge->addr) >= sizeof(uintptr_t)); > + /* SGE keeps its headroom. */ > + sge->addr = (uintptr_t) > + ((uint8_t *)buf->buf_addr + RTE_PKTMBUF_HEADROOM); > + sge->length = (buf->buf_len - RTE_PKTMBUF_HEADROOM); > + sge->lkey = rxq->mr->lkey; > + /* Redundant check for tailroom. */ > + assert(sge->length == rte_pktmbuf_tailroom(buf)); > + /* Make sure elts index and SGE mbuf pointer can be deduced > + * from WR ID. */ > + if ((WR_ID(wr->wr_id).id != i) || > + ((void *)(sge->addr - WR_ID(wr->wr_id).offset) != buf)) { > + ERROR("%p: cannot store index and offset in WR ID", > + (void *)rxq); > + sge->addr = 0; > + rte_pktmbuf_free(buf); > + ret = EOVERFLOW; > + goto error; > + } > + } > + /* The last WR pointer must be NULL. */ > + (*elts)[(i - 1)].wr.next = NULL; > + DEBUG("%p: allocated and configured %u single-segment WRs", > + (void *)rxq, elts_n); > + rxq->elts_n = elts_n; > + rxq->elts.no_sp = elts; > + assert(ret == 0); > + return 0; > +error: > + if (elts != NULL) { > + assert(pool == NULL); > + for (i = 0; (i != elemof(*elts)); ++i) { > + struct rxq_elt *elt = &(*elts)[i]; > + struct rte_mbuf *buf; > + > + if (elt->sge.addr == 0) > + continue; > + assert(WR_ID(elt->wr.wr_id).id == i); > + buf = (void *) > + (elt->sge.addr - WR_ID(elt->wr.wr_id).offset); > + rte_pktmbuf_free_seg(buf); > + } > + rte_free(elts); > + } > + DEBUG("%p: failed, freed everything", (void *)rxq); > + assert(ret > 0); > + return ret; > +} > + > +/** > + * Free RX queue elements. > + * > + * @param rxq > + * Pointer to RX queue structure. > + */ > +static void > +rxq_free_elts(struct rxq *rxq) > +{ > + unsigned int i; > + unsigned int elts_n = rxq->elts_n; > + struct rxq_elt (*elts)[elts_n] = rxq->elts.no_sp; > + > + DEBUG("%p: freeing WRs", (void *)rxq); > + rxq->elts_n = 0; > + rxq->elts.no_sp = NULL; > + if (elts == NULL) > + return; > + for (i = 0; (i != elemof(*elts)); ++i) { > + struct rxq_elt *elt = &(*elts)[i]; > + struct rte_mbuf *buf; > + > + if (elt->sge.addr == 0) > + continue; > + assert(WR_ID(elt->wr.wr_id).id == i); > + buf = (void *)(elt->sge.addr - WR_ID(elt->wr.wr_id).offset); > + rte_pktmbuf_free_seg(buf); > + } > + rte_free(elts); > +} > + > +/** > + * Unregister a MAC address from a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + * @param mac_index > + * MAC address index. > + */ > +static void > +rxq_mac_addr_del(struct rxq *rxq, unsigned int mac_index) > +{ > +#ifndef NDEBUG > + struct priv *priv = rxq->priv; > + const uint8_t (*mac)[ETHER_ADDR_LEN] = > + (const uint8_t (*)[ETHER_ADDR_LEN]) > + priv->mac[mac_index].addr_bytes; > +#endif > + > + assert(mac_index < elemof(priv->mac)); > + if (!BITFIELD_ISSET(rxq->mac_configured, mac_index)) { > + assert(rxq->mac_flow[mac_index] == NULL); > + return; > + } > + DEBUG("%p: removing MAC address %02x:%02x:%02x:%02x:%02x:%02x" > + " index %u", > + (void *)rxq, > + (*mac)[0], (*mac)[1], (*mac)[2], (*mac)[3], (*mac)[4], (*mac)[5], > + mac_index); > + assert(rxq->mac_flow[mac_index] != NULL); > + claim_zero(ibv_exp_destroy_flow(rxq->mac_flow[mac_index])); > + rxq->mac_flow[mac_index] = NULL; > + BITFIELD_RESET(rxq->mac_configured, mac_index); > +} > + > +/** > + * Unregister all MAC addresses from a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + */ > +static void > +rxq_mac_addrs_del(struct rxq *rxq) > +{ > + struct priv *priv = rxq->priv; > + unsigned int i; > + > + for (i = 0; (i != elemof(priv->mac)); ++i) > + rxq_mac_addr_del(rxq, i); > +} > + > +static int rxq_promiscuous_enable(struct rxq *); > +static void rxq_promiscuous_disable(struct rxq *); > + > +/** > + * Register a MAC address in a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + * @param mac_index > + * MAC address index to register. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_mac_addr_add(struct rxq *rxq, unsigned int mac_index) > +{ > + struct priv *priv = rxq->priv; > + const uint8_t (*mac)[ETHER_ADDR_LEN] = > + (const uint8_t (*)[ETHER_ADDR_LEN]) > + priv->mac[mac_index].addr_bytes; > + unsigned int vlans = 0; > + unsigned int specs = 0; > + unsigned int i, j; > + struct ibv_exp_flow *flow; > + > + assert(mac_index < elemof(priv->mac)); > + if (BITFIELD_ISSET(rxq->mac_configured, mac_index)) > + rxq_mac_addr_del(rxq, mac_index); > + /* Number of configured VLANs. */ > + for (i = 0; (i != elemof(priv->vlan_filter)); ++i) > + if (priv->vlan_filter[i].enabled) > + ++vlans; > + specs = (vlans ? vlans : 1); > + > + /* Allocate flow specification on the stack. */ > + struct ibv_exp_flow_attr data > + [1 + > + (sizeof(struct ibv_exp_flow_spec_eth[specs]) / > + sizeof(struct ibv_exp_flow_attr)) + > + !!(sizeof(struct ibv_exp_flow_spec_eth[specs]) % > + sizeof(struct ibv_exp_flow_attr))]; > + struct ibv_exp_flow_attr *attr = (void *)&data[0]; > + struct ibv_exp_flow_spec_eth *spec = (void *)&data[1]; > + > + /* > + * No padding must be inserted by the compiler between attr and spec. > + * This layout is expected by libibverbs. > + */ > + assert(((uint8_t *)attr + sizeof(*attr)) == (uint8_t *)spec); > + *attr = (struct ibv_exp_flow_attr){ > + .type = IBV_EXP_FLOW_ATTR_NORMAL, > + .num_of_specs = specs, > + .port = priv->port, > + .flags = 0 > + }; > + *spec = (struct ibv_exp_flow_spec_eth){ > + .type = IBV_EXP_FLOW_SPEC_ETH, > + .size = sizeof(*spec), > + .val = { > + .dst_mac = { > + (*mac)[0], (*mac)[1], (*mac)[2], > + (*mac)[3], (*mac)[4], (*mac)[5] > + } > + }, > + .mask = { > + .dst_mac = "\xff\xff\xff\xff\xff\xff", > + .vlan_tag = (vlans ? htons(0xfff) : 0) > + } > + }; > + /* Fill VLAN specifications. */ > + for (i = 0, j = 0; (i != elemof(priv->vlan_filter)); ++i) { > + if (!priv->vlan_filter[i].enabled) > + continue; > + assert(j != vlans); > + if (j) > + spec[j] = spec[0]; > + spec[j].val.vlan_tag = htons(priv->vlan_filter[i].id); > + ++j; > + } > + DEBUG("%p: adding MAC address %02x:%02x:%02x:%02x:%02x:%02x index %u" > + " (%u VLAN(s) configured)", > + (void *)rxq, > + (*mac)[0], (*mac)[1], (*mac)[2], (*mac)[3], (*mac)[4], (*mac)[5], > + mac_index, > + vlans); > + /* Create related flow. */ > + errno = 0; > + flow = ibv_exp_create_flow(rxq->qp, attr); > + if (flow == NULL) { > + int err = errno; > + > + /* Flow creation failure is not fatal when in DMFS A0 mode. > + * Ignore error if promiscuity is already enabled or can be > + * enabled. */ > + if (priv->promisc_ok) > + return 0; > + if ((rxq->promisc_flow != NULL) || > + (rxq_promiscuous_enable(rxq) == 0)) { > + if (rxq->promisc_flow != NULL) > + rxq_promiscuous_disable(rxq); > + WARN("cannot configure normal flow but promiscuous" > + " mode is fine, assuming promiscuous optimization" > + " is enabled" > + " (options mlx4_core log_num_mgm_entry_size=-7)"); > + priv->promisc_ok = 1; > + return 0; > + } > + errno = err; > + /* It's not clear whether errno is always set in this case. */ > + ERROR("%p: flow configuration failed, errno=%d: %s", > + (void *)rxq, errno, > + (errno ? strerror(errno) : "Unknown error")); > + if (errno) > + return errno; > + return EINVAL; > + } > + assert(rxq->mac_flow[mac_index] == NULL); > + rxq->mac_flow[mac_index] = flow; > + BITFIELD_SET(rxq->mac_configured, mac_index); > + return 0; > +} > + > +/** > + * Register all MAC addresses in a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_mac_addrs_add(struct rxq *rxq) > +{ > + struct priv *priv = rxq->priv; > + unsigned int i; > + int ret; > + > + for (i = 0; (i != elemof(priv->mac)); ++i) { > + if (!BITFIELD_ISSET(priv->mac_configured, i)) > + continue; > + ret = rxq_mac_addr_add(rxq, i); > + if (!ret) > + continue; > + /* Failure, rollback. */ > + while (i != 0) > + rxq_mac_addr_del(rxq, --i); > + assert(ret > 0); > + return ret; > + } > + return 0; > +} > + > +/** > + * Unregister a MAC address. > + * > + * In RSS mode, the MAC address is unregistered from the parent queue, > + * otherwise it is unregistered from each queue directly. > + * > + * @param priv > + * Pointer to private structure. > + * @param mac_index > + * MAC address index. > + */ > +static void > +priv_mac_addr_del(struct priv *priv, unsigned int mac_index) > +{ > + unsigned int i; > + > + assert(mac_index < elemof(priv->mac)); > + if (!BITFIELD_ISSET(priv->mac_configured, mac_index)) > + return; > + if (priv->rss) { > + rxq_mac_addr_del(&priv->rxq_parent, mac_index); > + goto end; > + } > + for (i = 0; (i != priv->dev->data->nb_rx_queues); ++i) > + rxq_mac_addr_del((*priv->rxqs)[i], mac_index); > +end: > + BITFIELD_RESET(priv->mac_configured, mac_index); > +} > + > +/** > + * Register a MAC address. > + * > + * In RSS mode, the MAC address is registered in the parent queue, > + * otherwise it is registered in each queue directly. > + * > + * @param priv > + * Pointer to private structure. > + * @param mac_index > + * MAC address index to use. > + * @param mac > + * MAC address to register. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +priv_mac_addr_add(struct priv *priv, unsigned int mac_index, > + const uint8_t (*mac)[ETHER_ADDR_LEN]) > +{ > + unsigned int i; > + int ret; > + > + assert(mac_index < elemof(priv->mac)); > + /* First, make sure this address isn't already configured. */ > + for (i = 0; (i != elemof(priv->mac)); ++i) { > + /* Skip this index, it's going to be reconfigured. */ > + if (i == mac_index) > + continue; > + if (!BITFIELD_ISSET(priv->mac_configured, i)) > + continue; > + if (memcmp(priv->mac[i].addr_bytes, *mac, sizeof(*mac))) > + continue; > + /* Address already configured elsewhere, return with error. */ > + return EADDRINUSE; > + } > + if (BITFIELD_ISSET(priv->mac_configured, mac_index)) > + priv_mac_addr_del(priv, mac_index); > + priv->mac[mac_index] = (struct ether_addr){ > + { > + (*mac)[0], (*mac)[1], (*mac)[2], > + (*mac)[3], (*mac)[4], (*mac)[5] > + } > + }; > + /* If device isn't started, this is all we need to do. */ > + if (!priv->started) { > +#ifndef NDEBUG > + /* Verify that all queues have this index disabled. */ > + for (i = 0; (i != priv->rxqs_n); ++i) { > + if ((*priv->rxqs)[i] == NULL) > + continue; > + assert(!BITFIELD_ISSET > + ((*priv->rxqs)[i]->mac_configured, mac_index)); > + } > +#endif > + goto end; > + } > + if (priv->rss) { > + ret = rxq_mac_addr_add(&priv->rxq_parent, mac_index); > + if (ret) > + return ret; > + goto end; > + } > + for (i = 0; (i != priv->rxqs_n); ++i) { > + if ((*priv->rxqs)[i] == NULL) > + continue; > + ret = rxq_mac_addr_add((*priv->rxqs)[i], mac_index); > + if (!ret) > + continue; > + /* Failure, rollback. */ > + while (i != 0) > + if ((*priv->rxqs)[(--i)] != NULL) > + rxq_mac_addr_del((*priv->rxqs)[i], mac_index); > + return ret; > + } > +end: > + BITFIELD_SET(priv->mac_configured, mac_index); > + return 0; > +} > + > +/** > + * Enable allmulti mode in a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_allmulticast_enable(struct rxq *rxq) > +{ > + struct ibv_exp_flow *flow; > + struct ibv_exp_flow_attr attr = { > + .type = IBV_EXP_FLOW_ATTR_MC_DEFAULT, > + .num_of_specs = 0, > + .port = rxq->priv->port, > + .flags = 0 > + }; > + > + DEBUG("%p: enabling allmulticast mode", (void *)rxq); > + if (rxq->allmulti_flow != NULL) > + return EBUSY; > + errno = 0; > + flow = ibv_exp_create_flow(rxq->qp, &attr); > + if (flow == NULL) { > + /* It's not clear whether errno is always set in this case. */ > + ERROR("%p: flow configuration failed, errno=%d: %s", > + (void *)rxq, errno, > + (errno ? strerror(errno) : "Unknown error")); > + if (errno) > + return errno; > + return EINVAL; > + } > + rxq->allmulti_flow = flow; > + DEBUG("%p: allmulticast mode enabled", (void *)rxq); > + return 0; > +} > + > +/** > + * Disable allmulti mode in a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + */ > +static void > +rxq_allmulticast_disable(struct rxq *rxq) > +{ > + DEBUG("%p: disabling allmulticast mode", (void *)rxq); > + if (rxq->allmulti_flow == NULL) > + return; > + claim_zero(ibv_exp_destroy_flow(rxq->allmulti_flow)); > + rxq->allmulti_flow = NULL; > + DEBUG("%p: allmulticast mode disabled", (void *)rxq); > +} > + > +/** > + * Enable promiscuous mode in a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_promiscuous_enable(struct rxq *rxq) > +{ > + struct ibv_exp_flow *flow; > + struct ibv_exp_flow_attr attr = { > + .type = IBV_EXP_FLOW_ATTR_ALL_DEFAULT, > + .num_of_specs = 0, > + .port = rxq->priv->port, > + .flags = 0 > + }; > + > + if (rxq->priv->vf) > + return 0; > + DEBUG("%p: enabling promiscuous mode", (void *)rxq); > + if (rxq->promisc_flow != NULL) > + return EBUSY; > + errno = 0; > + flow = ibv_exp_create_flow(rxq->qp, &attr); > + if (flow == NULL) { > + /* It's not clear whether errno is always set in this case. */ > + ERROR("%p: flow configuration failed, errno=%d: %s", > + (void *)rxq, errno, > + (errno ? strerror(errno) : "Unknown error")); > + if (errno) > + return errno; > + return EINVAL; > + } > + rxq->promisc_flow = flow; > + DEBUG("%p: promiscuous mode enabled", (void *)rxq); > + return 0; > +} > + > +/** > + * Disable promiscuous mode in a RX queue. > + * > + * @param rxq > + * Pointer to RX queue structure. > + */ > +static void > +rxq_promiscuous_disable(struct rxq *rxq) > +{ > + if (rxq->priv->vf) > + return; > + DEBUG("%p: disabling promiscuous mode", (void *)rxq); > + if (rxq->promisc_flow == NULL) > + return; > + claim_zero(ibv_exp_destroy_flow(rxq->promisc_flow)); > + rxq->promisc_flow = NULL; > + DEBUG("%p: promiscuous mode disabled", (void *)rxq); > +} > + > +/** > + * Clean up a RX queue. > + * > + * Destroy objects, free allocated memory and reset the structure for reuse. > + * > + * @param rxq > + * Pointer to RX queue structure. > + */ > +static void > +rxq_cleanup(struct rxq *rxq) > +{ > + DEBUG("cleaning up %p", (void *)rxq); > + if (rxq->sp) > + rxq_free_elts_sp(rxq); > + else > + rxq_free_elts(rxq); > + if (rxq->qp != NULL) { > + rxq_promiscuous_disable(rxq); > + rxq_allmulticast_disable(rxq); > + rxq_mac_addrs_del(rxq); > + claim_zero(ibv_destroy_qp(rxq->qp)); > + } > + if (rxq->cq != NULL) > + claim_zero(ibv_destroy_cq(rxq->cq)); > + if (rxq->mr != NULL) > + claim_zero(ibv_dereg_mr(rxq->mr)); > + memset(rxq, 0, sizeof(*rxq)); > +} > + > +static uint16_t > +mlx4_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n); > + > +/** > + * DPDK callback for RX with scattered packets support. > + * > + * @param dpdk_rxq > + * Generic pointer to RX queue structure. > + * @param[out] pkts > + * Array to store received packets. > + * @param pkts_n > + * Maximum number of packets in array. > + * > + * @return > + * Number of packets successfully received (<= pkts_n). > + */ > +static uint16_t > +mlx4_rx_burst_sp(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n) > +{ > + struct rxq *rxq = (struct rxq *)dpdk_rxq; > + struct rxq_elt_sp (*elts)[rxq->elts_n] = rxq->elts.sp; > + struct ibv_wc wcs[pkts_n]; > + struct ibv_recv_wr head; > + struct ibv_recv_wr **next = &head.next; > + struct ibv_recv_wr *bad_wr; > + int ret = 0; > + int wcs_n; > + int i; > + > + if (unlikely(!rxq->sp)) > + return mlx4_rx_burst(dpdk_rxq, pkts, pkts_n); > + if (unlikely(elts == NULL)) /* See RTE_DEV_CMD_SET_MTU. */ > + return 0; > + wcs_n = ibv_poll_cq(rxq->cq, pkts_n, wcs); > + if (unlikely(wcs_n == 0)) > + return 0; > + if (unlikely(wcs_n < 0)) { > + DEBUG("rxq=%p, ibv_poll_cq() failed (wc_n=%d)", > + (void *)rxq, wcs_n); > + return 0; > + } > + assert(wcs_n <= (int)pkts_n); > + /* For each work completion. */ > + for (i = 0; (i != wcs_n); ++i) { > + struct ibv_wc *wc = &wcs[i]; > + uint64_t wr_id = wc->wr_id; > + uint32_t len = wc->byte_len; > + struct rxq_elt_sp *elt = &(*elts)[wr_id]; > + struct ibv_recv_wr *wr = &elt->wr; > + struct rte_mbuf *pkt_buf = NULL; /* Buffer returned in pkts. */ > + struct rte_mbuf **pkt_buf_next = &pkt_buf; > + unsigned int seg_headroom = RTE_PKTMBUF_HEADROOM; > + unsigned int j = 0; > + > + /* Sanity checks. */ > + assert(wr_id < rxq->elts_n); > + assert(wr_id == wr->wr_id); > + assert(wr->sg_list == elt->sges); > + assert(wr->num_sge == elemof(elt->sges)); > + /* Link completed WRs together for repost. */ > + *next = wr; > + next = &wr->next; > + if (unlikely(wc->status != IBV_WC_SUCCESS)) { > + /* Whatever, just repost the offending WR. */ > + DEBUG("rxq=%p, wr_id=%" PRIu64 ": bad work completion" > + " status (%d): %s", > + (void *)rxq, wc->wr_id, wc->status, > + ibv_wc_status_str(wc->status)); > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increase dropped packets counter. */ > + ++rxq->stats.idropped; > +#endif > + goto repost; > + } > + /* > + * Replace spent segments with new ones, concatenate and > + * return them as pkt_buf. > + */ > + while (1) { > + struct ibv_sge *sge = &elt->sges[j]; > + struct rte_mbuf *seg = elt->bufs[j]; > + struct rte_mbuf *rep; > + unsigned int seg_tailroom; > + > + /* > + * Fetch initial bytes of packet descriptor into a > + * cacheline while allocating rep. > + */ > + rte_prefetch0(seg); > + rep = __rte_mbuf_raw_alloc(rxq->mp); > + if (unlikely(rep == NULL)) { > + /* > + * Unable to allocate a replacement mbuf, > + * repost WR. > + */ > + DEBUG("rxq=%p, wr_id=%" PRIu64 ":" > + " can't allocate a new mbuf", > + (void *)rxq, wr_id); > + if (pkt_buf != NULL) > + rte_pktmbuf_free(pkt_buf); > + /* Increase out of memory counters. */ > + ++rxq->stats.rx_nombuf; > + ++rxq->priv->dev->data->rx_mbuf_alloc_failed; > + goto repost; > + } > +#ifndef NDEBUG > + /* Poison user-modifiable fields in rep. */ > + NEXT(rep) = (void *)((uintptr_t)-1); > + SET_DATA_OFF(rep, 0xdead); > + DATA_LEN(rep) = 0xd00d; > + PKT_LEN(rep) = 0xdeadd00d; > + NB_SEGS(rep) = 0x2a; > + PORT(rep) = 0x2a; > + rep->ol_flags = -1; > +#endif > + assert(rep->buf_len == seg->buf_len); > + assert(rep->buf_len == rxq->mb_len); > + /* Reconfigure sge to use rep instead of seg. */ > + assert(sge->lkey == rxq->mr->lkey); > + sge->addr = ((uintptr_t)rep->buf_addr + seg_headroom); > + elt->bufs[j] = rep; > + ++j; > + /* Update pkt_buf if it's the first segment, or link > + * seg to the previous one and update pkt_buf_next. */ > + *pkt_buf_next = seg; > + pkt_buf_next = &NEXT(seg); > + /* Update seg information. */ > + seg_tailroom = (seg->buf_len - seg_headroom); > + assert(sge->length == seg_tailroom); > + SET_DATA_OFF(seg, seg_headroom); > + if (likely(len <= seg_tailroom)) { > + /* Last segment. */ > + DATA_LEN(seg) = len; > + PKT_LEN(seg) = len; > + /* Sanity check. */ > + assert(rte_pktmbuf_headroom(seg) == > + seg_headroom); > + assert(rte_pktmbuf_tailroom(seg) == > + (seg_tailroom - len)); > + break; > + } > + DATA_LEN(seg) = seg_tailroom; > + PKT_LEN(seg) = seg_tailroom; > + /* Sanity check. */ > + assert(rte_pktmbuf_headroom(seg) == seg_headroom); > + assert(rte_pktmbuf_tailroom(seg) == 0); > + /* Fix len and clear headroom for next segments. */ > + len -= seg_tailroom; > + seg_headroom = 0; > + } > + /* Update head and tail segments. */ > + *pkt_buf_next = NULL; > + assert(pkt_buf != NULL); > + assert(j != 0); > + NB_SEGS(pkt_buf) = j; > + PORT(pkt_buf) = rxq->port_id; > + PKT_LEN(pkt_buf) = wc->byte_len; > + pkt_buf->ol_flags = 0; > + > + /* Return packet. */ > + *(pkts++) = pkt_buf; > + ++ret; > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increase bytes counter. */ > + rxq->stats.ibytes += wc->byte_len; > +#endif > +repost: > + continue; > + } > + *next = NULL; > + /* Repost WRs. */ > +#ifdef DEBUG_RECV > + DEBUG("%p: reposting %d WRs starting from %" PRIu64 " (%p)", > + (void *)rxq, wcs_n, wcs[0].wr_id, (void *)head.next); > +#endif > + i = ibv_post_recv(rxq->qp, head.next, &bad_wr); > + if (unlikely(i)) { > + /* Inability to repost WRs is fatal. */ > + DEBUG("%p: ibv_post_recv(): failed for WR %p: %s", > + (void *)rxq->priv, > + (void *)bad_wr, > + strerror(i)); > + abort(); > + } > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increase packets counter. */ > + rxq->stats.ipackets += ret; > +#endif > + return ret; > +} > + > +/** > + * DPDK callback for RX. > + * > + * The following function is the same as mlx4_rx_burst_sp(), except it doesn't > + * manage scattered packets. Improves performance when MRU is lower than the > + * size of the first segment. > + * > + * @param dpdk_rxq > + * Generic pointer to RX queue structure. > + * @param[out] pkts > + * Array to store received packets. > + * @param pkts_n > + * Maximum number of packets in array. > + * > + * @return > + * Number of packets successfully received (<= pkts_n). > + */ > +static uint16_t > +mlx4_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n) > +{ > + struct rxq *rxq = (struct rxq *)dpdk_rxq; > + struct rxq_elt (*elts)[rxq->elts_n] = rxq->elts.no_sp; > + struct ibv_wc wcs[pkts_n]; > + struct ibv_recv_wr head; > + struct ibv_recv_wr **next = &head.next; > + struct ibv_recv_wr *bad_wr; > + int ret = 0; > + int wcs_n; > + int i; > + > + if (unlikely(rxq->sp)) > + return mlx4_rx_burst_sp(dpdk_rxq, pkts, pkts_n); > + wcs_n = ibv_poll_cq(rxq->cq, pkts_n, wcs); > + if (unlikely(wcs_n == 0)) > + return 0; > + if (unlikely(wcs_n < 0)) { > + DEBUG("rxq=%p, ibv_poll_cq() failed (wc_n=%d)", > + (void *)rxq, wcs_n); > + return 0; > + } > + assert(wcs_n <= (int)pkts_n); > + /* For each work completion. */ > + for (i = 0; (i != wcs_n); ++i) { > + struct ibv_wc *wc = &wcs[i]; > + uint64_t wr_id = wc->wr_id; > + uint32_t len = wc->byte_len; > + struct rxq_elt *elt = &(*elts)[WR_ID(wr_id).id]; > + struct ibv_recv_wr *wr = &elt->wr; > + struct rte_mbuf *seg = > + (void *)(elt->sge.addr - WR_ID(wr_id).offset); > + struct rte_mbuf *rep; > + > + /* Sanity checks. */ > + assert(WR_ID(wr_id).id < rxq->elts_n); > + assert(wr_id == wr->wr_id); > + assert(wr->sg_list == &elt->sge); > + assert(wr->num_sge == 1); > + /* Link completed WRs together for repost. */ > + *next = wr; > + next = &wr->next; > + if (unlikely(wc->status != IBV_WC_SUCCESS)) { > + /* Whatever, just repost the offending WR. */ > + DEBUG("rxq=%p, wr_id=%" PRIu32 ": bad work completion" > + " status (%d): %s", > + (void *)rxq, WR_ID(wr_id).id, wc->status, > + ibv_wc_status_str(wc->status)); > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increase dropped packets counter. */ > + ++rxq->stats.idropped; > +#endif > + goto repost; > + } > + /* > + * Fetch initial bytes of packet descriptor into a > + * cacheline while allocating rep. > + */ > + rte_prefetch0(seg); > + rep = __rte_mbuf_raw_alloc(rxq->mp); > + if (unlikely(rep == NULL)) { > + /* > + * Unable to allocate a replacement mbuf, > + * repost WR. > + */ > + DEBUG("rxq=%p, wr_id=%" PRIu32 ":" > + " can't allocate a new mbuf", > + (void *)rxq, WR_ID(wr_id).id); > + /* Increase out of memory counters. */ > + ++rxq->stats.rx_nombuf; > + ++rxq->priv->dev->data->rx_mbuf_alloc_failed; > + goto repost; > + } > + > + /* Reconfigure sge to use rep instead of seg. */ > + elt->sge.addr = (uintptr_t)rep->buf_addr + RTE_PKTMBUF_HEADROOM; > + assert(elt->sge.lkey == rxq->mr->lkey); > + WR_ID(wr->wr_id).offset = > + (((uintptr_t)rep->buf_addr + RTE_PKTMBUF_HEADROOM) - > + (uintptr_t)rep); > + assert(WR_ID(wr->wr_id).id == WR_ID(wr_id).id); > + > + /* Update seg information. */ > + SET_DATA_OFF(seg, RTE_PKTMBUF_HEADROOM); > + NB_SEGS(seg) = 1; > + PORT(seg) = rxq->port_id; > + NEXT(seg) = NULL; > + PKT_LEN(seg) = len; > + DATA_LEN(seg) = len; > + seg->ol_flags = 0; > + > + /* Return packet. */ > + *(pkts++) = seg; > + ++ret; > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increase bytes counter. */ > + rxq->stats.ibytes += wc->byte_len; > +#endif > +repost: > + continue; > + } > + *next = NULL; > + /* Repost WRs. */ > +#ifdef DEBUG_RECV > + DEBUG("%p: reposting %d WRs starting from %" PRIu32 " (%p)", > + (void *)rxq, wcs_n, WR_ID(wcs[0].wr_id).id, (void *)head.next); > +#endif > + i = ibv_post_recv(rxq->qp, head.next, &bad_wr); > + if (unlikely(i)) { > + /* Inability to repost WRs is fatal. */ > + DEBUG("%p: ibv_post_recv(): failed for WR %p: %s", > + (void *)rxq->priv, > + (void *)bad_wr, > + strerror(i)); > + abort(); > + } > +#ifdef MLX4_PMD_SOFT_COUNTERS > + /* Increase packets counter. */ > + rxq->stats.ipackets += ret; > +#endif > + return ret; > +} > + > +#ifdef INLINE_RECV > + > +/** > + * Allocate a Queue Pair in case inline receive is supported. > + * > + * @param priv > + * Pointer to private structure. > + * @param cq > + * Completion queue to associate with QP. > + * @param desc > + * Number of descriptors in QP (hint only). > + * > + * @return > + * QP pointer or NULL in case of error. > + */ > +static struct ibv_qp * > +rxq_setup_qp(struct priv *priv, struct ibv_cq *cq, uint16_t desc) > +{ > + struct ibv_exp_qp_init_attr attr = { > + /* CQ to be associated with the send queue. */ > + .send_cq = cq, > + /* CQ to be associated with the receive queue. */ > + .recv_cq = cq, > + .max_inl_recv = priv->inl_recv_size, > + .cap = { > + /* Max number of outstanding WRs. */ > + .max_recv_wr = ((priv->device_attr.max_qp_wr < desc) ? > + priv->device_attr.max_qp_wr : > + desc), > + /* Max number of scatter/gather elements in a WR. */ > + .max_recv_sge = ((priv->device_attr.max_sge < > + MLX4_PMD_SGE_WR_N) ? > + priv->device_attr.max_sge : > + MLX4_PMD_SGE_WR_N), > + }, > + .qp_type = IBV_QPT_RAW_PACKET, > + .pd = priv->pd > + }; > + > + attr.comp_mask = IBV_EXP_QP_INIT_ATTR_PD; > + attr.comp_mask |= IBV_EXP_QP_INIT_ATTR_INL_RECV; > + > + return ibv_exp_create_qp(priv->ctx, &attr); > +} > + > +#else /* INLINE_RECV */ > + > +/** > + * Allocate a Queue Pair. > + * > + * @param priv > + * Pointer to private structure. > + * @param cq > + * Completion queue to associate with QP. > + * @param desc > + * Number of descriptors in QP (hint only). > + * > + * @return > + * QP pointer or NULL in case of error. > + */ > +static struct ibv_qp * > +rxq_setup_qp(struct priv *priv, struct ibv_cq *cq, uint16_t desc) > +{ > + struct ibv_qp_init_attr attr = { > + /* CQ to be associated with the send queue. */ > + .send_cq = cq, > + /* CQ to be associated with the receive queue. */ > + .recv_cq = cq, > + .cap = { > + /* Max number of outstanding WRs. */ > + .max_recv_wr = ((priv->device_attr.max_qp_wr < desc) ? > + priv->device_attr.max_qp_wr : > + desc), > + /* Max number of scatter/gather elements in a WR. */ > + .max_recv_sge = ((priv->device_attr.max_sge < > + MLX4_PMD_SGE_WR_N) ? > + priv->device_attr.max_sge : > + MLX4_PMD_SGE_WR_N), > + }, > + .qp_type = IBV_QPT_RAW_PACKET > + }; > + > + return ibv_create_qp(priv->pd, &attr); > +} > + > +#endif /* INLINE_RECV */ > + > +#ifdef RSS_SUPPORT > + > +/** > + * Allocate a RSS Queue Pair. > + * > + * @param priv > + * Pointer to private structure. > + * @param cq > + * Completion queue to associate with QP. > + * @param desc > + * Number of descriptors in QP (hint only). > + * @param parent > + * If nonzero, create a parent QP, otherwise a child. > + * > + * @return > + * QP pointer or NULL in case of error. > + */ > +static struct ibv_qp * > +rxq_setup_qp_rss(struct priv *priv, struct ibv_cq *cq, uint16_t desc, > + int parent) > +{ > + struct ibv_exp_qp_init_attr attr = { > + /* CQ to be associated with the send queue. */ > + .send_cq = cq, > + /* CQ to be associated with the receive queue. */ > + .recv_cq = cq, > +#ifdef INLINE_RECV > + .max_inl_recv = priv->inl_recv_size, > +#endif > + .cap = { > + /* Max number of outstanding WRs. */ > + .max_recv_wr = ((priv->device_attr.max_qp_wr < desc) ? > + priv->device_attr.max_qp_wr : > + desc), > + /* Max number of scatter/gather elements in a WR. */ > + .max_recv_sge = ((priv->device_attr.max_sge < > + MLX4_PMD_SGE_WR_N) ? > + priv->device_attr.max_sge : > + MLX4_PMD_SGE_WR_N), > + }, > + .qp_type = IBV_QPT_RAW_PACKET, > + .comp_mask = (IBV_EXP_QP_INIT_ATTR_PD | > + IBV_EXP_QP_INIT_ATTR_QPG), > + .pd = priv->pd > + }; > + > +#ifdef INLINE_RECV > + attr.comp_mask |= IBV_EXP_QP_INIT_ATTR_INL_RECV; > +#endif > + if (parent) { > + attr.qpg.qpg_type = IBV_EXP_QPG_PARENT; > + /* TSS isn't necessary. */ > + attr.qpg.parent_attrib.tss_child_count = 0; > + attr.qpg.parent_attrib.rss_child_count = priv->rxqs_n; > + DEBUG("initializing parent RSS queue"); > + } else { > + attr.qpg.qpg_type = IBV_EXP_QPG_CHILD_RX; > + attr.qpg.qpg_parent = priv->rxq_parent.qp; > + DEBUG("initializing child RSS queue"); > + } > + return ibv_exp_create_qp(priv->ctx, &attr); > +} > + > +#endif /* RSS_SUPPORT */ > + > +/** > + * Reconfigure a RX queue with new parameters. > + * > + * rxq_rehash() does not allocate mbufs, which, if not done from the right > + * thread (such as a control thread), may corrupt the pool. > + * In case of failure, the queue is left untouched. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param rxq > + * RX queue pointer. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) > +{ > + struct priv *priv = rxq->priv; > + struct rxq tmpl = *rxq; > + unsigned int mbuf_n; > + unsigned int desc_n; > + struct rte_mbuf **pool; > + unsigned int i, k; > + struct ibv_exp_qp_attr mod; > + struct ibv_recv_wr *bad_wr; > + int err; > + int parent = (rxq == &priv->rxq_parent); > + > + if (parent) { > + ERROR("%p: cannot rehash parent queue %p", > + (void *)dev, (void *)rxq); > + return EINVAL; > + } > + DEBUG("%p: rehashing queue %p", (void *)dev, (void *)rxq); > + /* Number of descriptors and mbufs currently allocated. */ > + desc_n = (tmpl.elts_n * (tmpl.sp ? MLX4_PMD_SGE_WR_N : 1)); > + mbuf_n = desc_n; > + /* Enable scattered packets support for this queue if necessary. */ > + if ((dev->data->dev_conf.rxmode.jumbo_frame) && > + (dev->data->dev_conf.rxmode.max_rx_pkt_len > > + (tmpl.mb_len - RTE_PKTMBUF_HEADROOM))) { > + tmpl.sp = 1; > + desc_n /= MLX4_PMD_SGE_WR_N; > + } else > + tmpl.sp = 0; > + DEBUG("%p: %s scattered packets support (%u WRs)", > + (void *)dev, (tmpl.sp ? "enabling" : "disabling"), desc_n); > + /* If scatter mode is the same as before, nothing to do. */ > + if (tmpl.sp == rxq->sp) { > + DEBUG("%p: nothing to do", (void *)dev); > + return 0; > + } > + /* Remove attached flows if RSS is disabled (no parent queue). */ > + if (!priv->rss) { > + rxq_allmulticast_disable(&tmpl); > + rxq_promiscuous_disable(&tmpl); > + rxq_mac_addrs_del(&tmpl); > + /* Update original queue in case of failure. */ > + rxq->allmulti_flow = tmpl.allmulti_flow; > + rxq->promisc_flow = tmpl.promisc_flow; > + memcpy(rxq->mac_configured, tmpl.mac_configured, > + sizeof(rxq->mac_configured)); > + memcpy(rxq->mac_flow, tmpl.mac_flow, sizeof(rxq->mac_flow)); > + } > + /* From now on, any failure will render the queue unusable. > + * Reinitialize QP. */ > + mod = (struct ibv_exp_qp_attr){ .qp_state = IBV_QPS_RESET }; > + err = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); > + if (err) { > + ERROR("%p: cannot reset QP: %s", (void *)dev, strerror(err)); > + assert(err > 0); > + return err; > + } > + err = ibv_resize_cq(tmpl.cq, desc_n); > + if (err) { > + ERROR("%p: cannot resize CQ: %s", (void *)dev, strerror(err)); > + assert(err > 0); > + return err; > + } > + mod = (struct ibv_exp_qp_attr){ > + /* Move the QP to this state. */ > + .qp_state = IBV_QPS_INIT, > + /* Primary port number. */ > + .port_num = priv->port > + }; > + err = ibv_exp_modify_qp(tmpl.qp, &mod, > + (IBV_EXP_QP_STATE | > +#ifdef RSS_SUPPORT > + (parent ? IBV_EXP_QP_GROUP_RSS : 0) | > +#endif /* RSS_SUPPORT */ > + IBV_EXP_QP_PORT)); > + if (err) { > + ERROR("%p: QP state to IBV_QPS_INIT failed: %s", > + (void *)dev, strerror(err)); > + assert(err > 0); > + return err; > + }; > + /* Reconfigure flows. Do not care for errors. */ > + if (!priv->rss) { > + rxq_mac_addrs_add(&tmpl); > + if (priv->promisc) > + rxq_promiscuous_enable(&tmpl); > + if (priv->allmulti) > + rxq_allmulticast_enable(&tmpl); > + /* Update original queue in case of failure. */ > + rxq->allmulti_flow = tmpl.allmulti_flow; > + rxq->promisc_flow = tmpl.promisc_flow; > + memcpy(rxq->mac_configured, tmpl.mac_configured, > + sizeof(rxq->mac_configured)); > + memcpy(rxq->mac_flow, tmpl.mac_flow, sizeof(rxq->mac_flow)); > + } > + /* Allocate pool. */ > + pool = rte_malloc(__func__, (mbuf_n * sizeof(*pool)), 0); > + if (pool == NULL) { > + ERROR("%p: cannot allocate memory", (void *)dev); > + return ENOBUFS; > + } > + /* Snatch mbufs from original queue. */ > + k = 0; > + if (rxq->sp) { > + struct rxq_elt_sp (*elts)[rxq->elts_n] = rxq->elts.sp; > + > + for (i = 0; (i != elemof(*elts)); ++i) { > + struct rxq_elt_sp *elt = &(*elts)[i]; > + unsigned int j; > + > + for (j = 0; (j != elemof(elt->bufs)); ++j) { > + assert(elt->bufs[j] != NULL); > + pool[k++] = elt->bufs[j]; > + } > + } > + } else { > + struct rxq_elt (*elts)[rxq->elts_n] = rxq->elts.no_sp; > + > + for (i = 0; (i != elemof(*elts)); ++i) { > + struct rxq_elt *elt = &(*elts)[i]; > + struct rte_mbuf *buf = (void *) > + (elt->sge.addr - WR_ID(elt->wr.wr_id).offset); > + > + assert(WR_ID(elt->wr.wr_id).id == i); > + pool[k++] = buf; > + } > + } > + assert(k == mbuf_n); > + tmpl.elts_n = 0; > + tmpl.elts.sp = NULL; > + assert((void *)&tmpl.elts.sp == (void *)&tmpl.elts.no_sp); > + err = ((tmpl.sp) ? > + rxq_alloc_elts_sp(&tmpl, desc_n, pool) : > + rxq_alloc_elts(&tmpl, desc_n, pool)); > + if (err) { > + ERROR("%p: cannot reallocate WRs, aborting", (void *)dev); > + rte_free(pool); > + assert(err > 0); > + return err; > + } > + assert(tmpl.elts_n == desc_n); > + assert(tmpl.elts.sp != NULL); > + rte_free(pool); > + /* Clean up original data. */ > + rxq->elts_n = 0; > + rte_free(rxq->elts.sp); > + rxq->elts.sp = NULL; > + /* Post WRs. */ > + err = ibv_post_recv(tmpl.qp, > + (tmpl.sp ? > + &(*tmpl.elts.sp)[0].wr : > + &(*tmpl.elts.no_sp)[0].wr), > + &bad_wr); > + if (err) { > + ERROR("%p: ibv_post_recv() failed for WR %p: %s", > + (void *)dev, > + (void *)bad_wr, > + strerror(err)); > + goto skip_rtr; > + } > + mod = (struct ibv_exp_qp_attr){ > + .qp_state = IBV_QPS_RTR > + }; > + err = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); > + if (err) > + ERROR("%p: QP state to IBV_QPS_RTR failed: %s", > + (void *)dev, strerror(err)); > +skip_rtr: > + *rxq = tmpl; > + assert(err >= 0); > + return err; > +} > + > +/** > + * Configure a RX queue. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param rxq > + * Pointer to RX queue structure. > + * @param desc > + * Number of descriptors to configure in queue. > + * @param socket > + * NUMA socket on which memory must be allocated. > + * @param[in] conf > + * Thresholds parameters. > + * @param mp > + * Memory pool for buffer allocations. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc, > + unsigned int socket, const struct rte_eth_rxconf *conf, > + struct rte_mempool *mp) > +{ > + struct priv *priv = dev->data->dev_private; > + struct rxq tmpl = { > + .priv = priv, > + .mp = mp, > + .socket = socket > + }; > + struct ibv_exp_qp_attr mod; > + struct ibv_recv_wr *bad_wr; > + struct rte_mbuf *buf; > + int ret = 0; > + int parent = (rxq == &priv->rxq_parent); > + > + (void)conf; /* Thresholds configuration (ignored). */ > + /* > + * If this is a parent queue, hardware must support RSS and > + * RSS must be enabled. > + */ > + assert((!parent) || ((priv->hw_rss) && (priv->rss))); > + if (parent) { > + /* Even if unused, ibv_create_cq() requires at least one > + * descriptor. */ > + desc = 1; > + goto skip_mr; > + } > + if ((desc == 0) || (desc % MLX4_PMD_SGE_WR_N)) { > + ERROR("%p: invalid number of RX descriptors (must be a" > + " multiple of %d)", (void *)dev, desc); > + return EINVAL; > + } > + /* Get mbuf length. */ > + buf = rte_pktmbuf_alloc(mp); > + if (buf == NULL) { > + ERROR("%p: unable to allocate mbuf", (void *)dev); > + return ENOMEM; > + } > + tmpl.mb_len = buf->buf_len; > + assert((rte_pktmbuf_headroom(buf) + > + rte_pktmbuf_tailroom(buf)) == tmpl.mb_len); > + assert(rte_pktmbuf_headroom(buf) == RTE_PKTMBUF_HEADROOM); > + rte_pktmbuf_free(buf); > + /* Enable scattered packets support for this queue if necessary. */ > + if ((dev->data->dev_conf.rxmode.jumbo_frame) && > + (dev->data->dev_conf.rxmode.max_rx_pkt_len > > + (tmpl.mb_len - RTE_PKTMBUF_HEADROOM))) { > + tmpl.sp = 1; > + desc /= MLX4_PMD_SGE_WR_N; > + } > + DEBUG("%p: %s scattered packets support (%u WRs)", > + (void *)dev, (tmpl.sp ? "enabling" : "disabling"), desc); > + /* Use the entire RX mempool as the memory region. */ > + tmpl.mr = ibv_reg_mr(priv->pd, > + (void *)mp->elt_va_start, > + (mp->elt_va_end - mp->elt_va_start), > + (IBV_ACCESS_LOCAL_WRITE | > + IBV_ACCESS_REMOTE_WRITE)); > + if (tmpl.mr == NULL) { > + ret = EINVAL; > + ERROR("%p: MR creation failure: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > +skip_mr: > + tmpl.cq = ibv_create_cq(priv->ctx, desc, NULL, NULL, 0); > + if (tmpl.cq == NULL) { > + ret = ENOMEM; > + ERROR("%p: CQ creation failure: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + DEBUG("priv->device_attr.max_qp_wr is %d", > + priv->device_attr.max_qp_wr); > + DEBUG("priv->device_attr.max_sge is %d", > + priv->device_attr.max_sge); > +#ifdef RSS_SUPPORT > + if (priv->rss) > + tmpl.qp = rxq_setup_qp_rss(priv, tmpl.cq, desc, parent); > + else > +#endif /* RSS_SUPPORT */ > + tmpl.qp = rxq_setup_qp(priv, tmpl.cq, desc); > + if (tmpl.qp == NULL) { > + ret = (errno ? errno : EINVAL); > + ERROR("%p: QP creation failure: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + mod = (struct ibv_exp_qp_attr){ > + /* Move the QP to this state. */ > + .qp_state = IBV_QPS_INIT, > + /* Primary port number. */ > + .port_num = priv->port > + }; > + ret = ibv_exp_modify_qp(tmpl.qp, &mod, > + (IBV_EXP_QP_STATE | > +#ifdef RSS_SUPPORT > + (parent ? IBV_EXP_QP_GROUP_RSS : 0) | > +#endif /* RSS_SUPPORT */ > + IBV_EXP_QP_PORT)); > + if (ret) { > + ERROR("%p: QP state to IBV_QPS_INIT failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + if ((parent) || (!priv->rss)) { > + /* Configure MAC and broadcast addresses. */ > + ret = rxq_mac_addrs_add(&tmpl); > + if (ret) { > + ERROR("%p: QP flow attachment failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + } > + /* Allocate descriptors for RX queues, except for the RSS parent. */ > + if (parent) > + goto skip_alloc; > + if (tmpl.sp) > + ret = rxq_alloc_elts_sp(&tmpl, desc, NULL); > + else > + ret = rxq_alloc_elts(&tmpl, desc, NULL); > + if (ret) { > + ERROR("%p: RXQ allocation failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + ret = ibv_post_recv(tmpl.qp, > + (tmpl.sp ? > + &(*tmpl.elts.sp)[0].wr : > + &(*tmpl.elts.no_sp)[0].wr), > + &bad_wr); > + if (ret) { > + ERROR("%p: ibv_post_recv() failed for WR %p: %s", > + (void *)dev, > + (void *)bad_wr, > + strerror(ret)); > + goto error; > + } > +skip_alloc: > + mod = (struct ibv_exp_qp_attr){ > + .qp_state = IBV_QPS_RTR > + }; > + ret = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); > + if (ret) { > + ERROR("%p: QP state to IBV_QPS_RTR failed: %s", > + (void *)dev, strerror(ret)); > + goto error; > + } > + /* Save port ID. */ > + tmpl.port_id = dev->data->port_id; > + DEBUG("%p: RTE port ID: %u", (void *)rxq, tmpl.port_id); > + /* Clean up rxq in case we're reinitializing it. */ > + DEBUG("%p: cleaning-up old rxq just in case", (void *)rxq); > + rxq_cleanup(rxq); > + *rxq = tmpl; > + DEBUG("%p: rxq updated with %p", (void *)rxq, (void *)&tmpl); > + assert(ret == 0); > + return 0; > +error: > + rxq_cleanup(&tmpl); > + assert(ret > 0); > + return ret; > +} > + > +/** > + * DPDK callback to configure a RX queue. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param idx > + * RX queue index. > + * @param desc > + * Number of descriptors to configure in queue. > + * @param socket > + * NUMA socket on which memory must be allocated. > + * @param[in] conf > + * Thresholds parameters. > + * @param mp > + * Memory pool for buffer allocations. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, > + unsigned int socket, const struct rte_eth_rxconf *conf, > + struct rte_mempool *mp) > +{ > + struct priv *priv = dev->data->dev_private; > + struct rxq *rxq = (*priv->rxqs)[idx]; > + int ret; > + > + priv_lock(priv); > + DEBUG("%p: configuring queue %u for %u descriptors", > + (void *)dev, idx, desc); > + if (idx >= priv->rxqs_n) { > + ERROR("%p: queue index out of range (%u >= %u)", > + (void *)dev, idx, priv->rxqs_n); > + priv_unlock(priv); > + return -EOVERFLOW; > + } > + if (rxq != NULL) { > + DEBUG("%p: reusing already allocated queue index %u (%p)", > + (void *)dev, idx, (void *)rxq); > + if (priv->started) { > + priv_unlock(priv); > + return -EEXIST; > + } > + (*priv->rxqs)[idx] = NULL; > + rxq_cleanup(rxq); > + } else { > + rxq = rte_calloc_socket("RXQ", 1, sizeof(*rxq), 0, socket); > + if (rxq == NULL) { > + ERROR("%p: unable to allocate queue index %u", > + (void *)dev, idx); > + priv_unlock(priv); > + return -ENOMEM; > + } > + } > + ret = rxq_setup(dev, rxq, desc, socket, conf, mp); > + if (ret) > + rte_free(rxq); > + else { > + rxq->stats.idx = idx; > + DEBUG("%p: adding RX queue %p to list", > + (void *)dev, (void *)rxq); > + (*priv->rxqs)[idx] = rxq; > + /* Update receive callback. */ > + if (rxq->sp) > + dev->rx_pkt_burst = mlx4_rx_burst_sp; > + else > + dev->rx_pkt_burst = mlx4_rx_burst; > + } > + priv_unlock(priv); > + return -ret; > +} > + > +/** > + * DPDK callback to release a RX queue. > + * > + * @param dpdk_rxq > + * Generic RX queue pointer. > + */ > +static void > +mlx4_rx_queue_release(void *dpdk_rxq) > +{ > + struct rxq *rxq = (struct rxq *)dpdk_rxq; > + struct priv *priv; > + unsigned int i; > + > + if (rxq == NULL) > + return; > + priv = rxq->priv; > + priv_lock(priv); > + assert(rxq != &priv->rxq_parent); > + for (i = 0; (i != priv->rxqs_n); ++i) > + if ((*priv->rxqs)[i] == rxq) { > + DEBUG("%p: removing RX queue %p from list", > + (void *)priv->dev, (void *)rxq); > + (*priv->rxqs)[i] = NULL; > + break; > + } > + rxq_cleanup(rxq); > + rte_free(rxq); > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to start the device. > + * > + * Simulate device start by attaching all configured flows. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_dev_start(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i = 0; > + unsigned int r; > + struct rxq *rxq; > + > + priv_lock(priv); > + if (priv->started) { > + priv_unlock(priv); > + return 0; > + } > + DEBUG("%p: attaching configured flows to all RX queues", (void *)dev); > + priv->started = 1; > + if (priv->rss) { > + rxq = &priv->rxq_parent; > + r = 1; > + } else { > + rxq = (*priv->rxqs)[0]; > + r = priv->rxqs_n; > + } > + /* Iterate only once when RSS is enabled. */ > + do { > + int ret; > + > + /* Ignore nonexistent RX queues. */ > + if (rxq == NULL) > + continue; > + ret = rxq_mac_addrs_add(rxq); > + if (!ret && priv->promisc) > + ret = rxq_promiscuous_enable(rxq); > + if (!ret && priv->allmulti) > + ret = rxq_allmulticast_enable(rxq); > + if (!ret) > + continue; > + WARN("%p: QP flow attachment failed: %s", > + (void *)dev, strerror(ret)); > + /* Rollback. */ > + while (i != 0) { > + rxq = (*priv->rxqs)[--i]; > + if (rxq != NULL) { > + rxq_allmulticast_disable(rxq); > + rxq_promiscuous_disable(rxq); > + rxq_mac_addrs_del(rxq); > + } > + } > + priv->started = 0; > + return -ret; > + } while ((--r) && ((rxq = (*priv->rxqs)[++i]), i)); > + priv_unlock(priv); > + return 0; > +} > + > +/** > + * DPDK callback to stop the device. > + * > + * Simulate device stop by detaching all configured flows. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + */ > +static void > +mlx4_dev_stop(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i = 0; > + unsigned int r; > + struct rxq *rxq; > + > + priv_lock(priv); > + if (!priv->started) { > + priv_unlock(priv); > + return; > + } > + DEBUG("%p: detaching flows from all RX queues", (void *)dev); > + priv->started = 0; > + if (priv->rss) { > + rxq = &priv->rxq_parent; > + r = 1; > + } else { > + rxq = (*priv->rxqs)[0]; > + r = priv->rxqs_n; > + } > + /* Iterate only once when RSS is enabled. */ > + do { > + /* Ignore nonexistent RX queues. */ > + if (rxq == NULL) > + continue; > + rxq_allmulticast_disable(rxq); > + rxq_promiscuous_disable(rxq); > + rxq_mac_addrs_del(rxq); > + } while ((--r) && ((rxq = (*priv->rxqs)[++i]), i)); > + priv_unlock(priv); > +} > + > +/** > + * Dummy DPDK callback for TX. > + * > + * This function is used to temporarily replace the real callback during > + * unsafe control operations on the queue, or in case of error. > + * > + * @param dpdk_txq > + * Generic pointer to TX queue structure. > + * @param[in] pkts > + * Packets to transmit. > + * @param pkts_n > + * Number of packets in array. > + * > + * @return > + * Number of packets successfully transmitted (<= pkts_n). > + */ > +static uint16_t > +removed_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) > +{ > + (void)dpdk_txq; > + (void)pkts; > + (void)pkts_n; > + return 0; > +} > + > +/** > + * Dummy DPDK callback for RX. > + * > + * This function is used to temporarily replace the real callback during > + * unsafe control operations on the queue, or in case of error. > + * > + * @param dpdk_rxq > + * Generic pointer to RX queue structure. > + * @param[out] pkts > + * Array to store received packets. > + * @param pkts_n > + * Maximum number of packets in array. > + * > + * @return > + * Number of packets successfully received (<= pkts_n). > + */ > +static uint16_t > +removed_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n) > +{ > + (void)dpdk_rxq; > + (void)pkts; > + (void)pkts_n; > + return 0; > +} > + > +/** > + * DPDK callback to close the device. > + * > + * Destroy all queues and objects, free memory. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + */ > +static void > +mlx4_dev_close(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + void *tmp; > + unsigned int i; > + > + priv_lock(priv); > + DEBUG("%p: closing device \"%s\"", > + (void *)dev, > + ((priv->ctx != NULL) ? priv->ctx->device->name : "")); > + /* Prevent crashes when queues are still in use. This is unfortunately > + * still required for DPDK 1.3 because some programs (such as testpmd) > + * never release them before closing the device. */ > + dev->rx_pkt_burst = removed_rx_burst; > + dev->tx_pkt_burst = removed_tx_burst; > + if (priv->rxqs != NULL) { > + /* XXX race condition if mlx4_rx_burst() is still running. */ > + usleep(1000); > + for (i = 0; (i != priv->rxqs_n); ++i) { > + tmp = (*priv->rxqs)[i]; > + if (tmp == NULL) > + continue; > + (*priv->rxqs)[i] = NULL; > + rxq_cleanup(tmp); > + rte_free(tmp); > + } > + priv->rxqs_n = 0; > + priv->rxqs = NULL; > + } > + if (priv->txqs != NULL) { > + /* XXX race condition if mlx4_tx_burst() is still running. */ > + usleep(1000); > + for (i = 0; (i != priv->txqs_n); ++i) { > + tmp = (*priv->txqs)[i]; > + if (tmp == NULL) > + continue; > + (*priv->txqs)[i] = NULL; > + txq_cleanup(tmp); > + rte_free(tmp); > + } > + priv->txqs_n = 0; > + priv->txqs = NULL; > + } > + if (priv->rss) > + rxq_cleanup(&priv->rxq_parent); > + if (priv->pd != NULL) { > + assert(priv->ctx != NULL); > + claim_zero(ibv_dealloc_pd(priv->pd)); > + claim_zero(ibv_close_device(priv->ctx)); > + } else > + assert(priv->ctx == NULL); > + priv_unlock(priv); > + memset(priv, 0, sizeof(*priv)); > +} > + > +/** > + * DPDK callback to get information about the device. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param[out] info > + * Info structure output buffer. > + */ > +static void > +mlx4_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int max; > + > + priv_lock(priv); > + /* FIXME: we should ask the device for these values. */ > + info->min_rx_bufsize = 32; > + info->max_rx_pktlen = 65536; > + /* > + * Since we need one CQ per QP, the limit is the minimum number > + * between the two values. > + */ > + max = ((priv->device_attr.max_cq > priv->device_attr.max_qp) ? > + priv->device_attr.max_qp : priv->device_attr.max_cq); > + /* If max >= 65535 then max = 0, max_rx_queues is uint16_t. */ > + if (max >= 65535) > + max = 65535; > + info->max_rx_queues = max; > + info->max_tx_queues = max; > + info->max_mac_addrs = elemof(priv->mac); > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to get device statistics. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param[out] stats > + * Stats structure output buffer. > + */ > +static void > +mlx4_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) > +{ > + struct priv *priv = dev->data->dev_private; > + struct rte_eth_stats tmp = {0}; > + unsigned int i; > + unsigned int idx; > + > + priv_lock(priv); > + /* Add software counters. */ > + for (i = 0; (i != priv->rxqs_n); ++i) { > + struct rxq *rxq = (*priv->rxqs)[i]; > + > + if (rxq == NULL) > + continue; > + idx = rxq->stats.idx; > + if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) { > +#ifdef MLX4_PMD_SOFT_COUNTERS > + tmp.q_ipackets[idx] += rxq->stats.ipackets; > + tmp.q_ibytes[idx] += rxq->stats.ibytes; > +#endif > + tmp.q_errors[idx] += (rxq->stats.idropped + > + rxq->stats.rx_nombuf); > + } > +#ifdef MLX4_PMD_SOFT_COUNTERS > + tmp.ipackets += rxq->stats.ipackets; > + tmp.ibytes += rxq->stats.ibytes; > +#endif > + tmp.ierrors += rxq->stats.idropped; > + tmp.rx_nombuf += rxq->stats.rx_nombuf; > + } > + for (i = 0; (i != priv->txqs_n); ++i) { > + struct txq *txq = (*priv->txqs)[i]; > + > + if (txq == NULL) > + continue; > + idx = txq->stats.idx; > + if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) { > +#ifdef MLX4_PMD_SOFT_COUNTERS > + tmp.q_opackets[idx] += txq->stats.opackets; > + tmp.q_obytes[idx] += txq->stats.obytes; > +#endif > + tmp.q_errors[idx] += txq->stats.odropped; > + } > +#ifdef MLX4_PMD_SOFT_COUNTERS > + tmp.opackets += txq->stats.opackets; > + tmp.obytes += txq->stats.obytes; > +#endif > + tmp.oerrors += txq->stats.odropped; > + } > +#ifndef MLX4_PMD_SOFT_COUNTERS > + /* FIXME: retrieve and add hardware counters. */ > +#endif > + *stats = tmp; > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to clear device statistics. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + */ > +static void > +mlx4_stats_reset(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i; > + unsigned int idx; > + > + priv_lock(priv); > + for (i = 0; (i != priv->rxqs_n); ++i) { > + if ((*priv->rxqs)[i] == NULL) > + continue; > + idx = (*priv->rxqs)[i]->stats.idx; > + (*priv->rxqs)[i]->stats = > + (struct mlx4_rxq_stats){ .idx = idx }; > + } > + for (i = 0; (i != priv->txqs_n); ++i) { > + if ((*priv->txqs)[i] == NULL) > + continue; > + idx = (*priv->rxqs)[i]->stats.idx; > + (*priv->txqs)[i]->stats = > + (struct mlx4_txq_stats){ .idx = idx }; > + } > +#ifndef MLX4_PMD_SOFT_COUNTERS > + /* FIXME: reset hardware counters. */ > +#endif > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to remove a MAC address. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param index > + * MAC address index. > + */ > +static void > +mlx4_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index) > +{ > + struct priv *priv = dev->data->dev_private; > + > + priv_lock(priv); > + DEBUG("%p: removing MAC address from index %" PRIu32, > + (void *)dev, index); > + if (index >= MLX4_MAX_MAC_ADDRESSES) > + goto end; > + /* Refuse to remove the broadcast address, this one is special. */ > + if (!memcmp(priv->mac[index].addr_bytes, "\xff\xff\xff\xff\xff\xff", > + ETHER_ADDR_LEN)) > + goto end; > + priv_mac_addr_del(priv, index); > +end: > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to add a MAC address. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param mac_addr > + * MAC address to register. > + * @param index > + * MAC address index. > + * @param vmdq > + * VMDq pool index to associate address with (ignored). > + */ > +static void > +mlx4_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr, > + uint32_t index, uint32_t vmdq) > +{ > + struct priv *priv = dev->data->dev_private; > + > + (void)vmdq; > + priv_lock(priv); > + DEBUG("%p: adding MAC address at index %" PRIu32, > + (void *)dev, index); > + if (index >= MLX4_MAX_MAC_ADDRESSES) > + goto end; > + /* Refuse to add the broadcast address, this one is special. */ > + if (!memcmp(mac_addr->addr_bytes, "\xff\xff\xff\xff\xff\xff", > + ETHER_ADDR_LEN)) > + goto end; > + priv_mac_addr_add(priv, index, > + (const uint8_t (*)[ETHER_ADDR_LEN]) > + mac_addr->addr_bytes); > +end: > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to enable promiscuous mode. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + */ > +static void > +mlx4_promiscuous_enable(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i; > + int ret; > + > + priv_lock(priv); > + if (priv->promisc) { > + priv_unlock(priv); > + return; > + } > + /* If device isn't started, this is all we need to do. */ > + if (!priv->started) > + goto end; > + if (priv->rss) { > + ret = rxq_promiscuous_enable(&priv->rxq_parent); > + if (ret) { > + priv_unlock(priv); > + return; > + } > + goto end; > + } > + for (i = 0; (i != priv->rxqs_n); ++i) { > + if ((*priv->rxqs)[i] == NULL) > + continue; > + ret = rxq_promiscuous_enable((*priv->rxqs)[i]); > + if (!ret) > + continue; > + /* Failure, rollback. */ > + while (i != 0) > + if ((*priv->rxqs)[--i] != NULL) > + rxq_promiscuous_disable((*priv->rxqs)[i]); > + priv_unlock(priv); > + return; > + } > +end: > + priv->promisc = 1; > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to disable promiscuous mode. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + */ > +static void > +mlx4_promiscuous_disable(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i; > + > + priv_lock(priv); > + if (!priv->promisc) { > + priv_unlock(priv); > + return; > + } > + if (priv->rss) { > + rxq_promiscuous_disable(&priv->rxq_parent); > + goto end; > + } > + for (i = 0; (i != priv->rxqs_n); ++i) > + if ((*priv->rxqs)[i] != NULL) > + rxq_promiscuous_disable((*priv->rxqs)[i]); > +end: > + priv->promisc = 0; > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to enable allmulti mode. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + */ > +static void > +mlx4_allmulticast_enable(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i; > + int ret; > + > + priv_lock(priv); > + if (priv->allmulti) { > + priv_unlock(priv); > + return; > + } > + /* If device isn't started, this is all we need to do. */ > + if (!priv->started) > + goto end; > + if (priv->rss) { > + ret = rxq_allmulticast_enable(&priv->rxq_parent); > + if (ret) { > + priv_unlock(priv); > + return; > + } > + goto end; > + } > + for (i = 0; (i != priv->rxqs_n); ++i) { > + if ((*priv->rxqs)[i] == NULL) > + continue; > + ret = rxq_allmulticast_enable((*priv->rxqs)[i]); > + if (!ret) > + continue; > + /* Failure, rollback. */ > + while (i != 0) > + if ((*priv->rxqs)[--i] != NULL) > + rxq_allmulticast_disable((*priv->rxqs)[i]); > + priv_unlock(priv); > + return; > + } > +end: > + priv->allmulti = 1; > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to disable allmulti mode. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + */ > +static void > +mlx4_allmulticast_disable(struct rte_eth_dev *dev) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i; > + > + priv_lock(priv); > + if (!priv->allmulti) { > + priv_unlock(priv); > + return; > + } > + if (priv->rss) { > + rxq_allmulticast_disable(&priv->rxq_parent); > + goto end; > + } > + for (i = 0; (i != priv->rxqs_n); ++i) > + if ((*priv->rxqs)[i] != NULL) > + rxq_allmulticast_disable((*priv->rxqs)[i]); > +end: > + priv->allmulti = 0; > + priv_unlock(priv); > +} > + > +/** > + * DPDK callback to retrieve physical link information (unlocked version). > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param wait_to_complete > + * Wait for request completion (ignored). > + */ > +static int > +mlx4_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete) > +{ > + struct priv *priv = dev->data->dev_private; > + struct ibv_port_attr port_attr; > + static const uint8_t width_mult[] = { > + /* Multiplier values taken from devinfo.c in libibverbs. */ > + 0, 1, 4, 0, 8, 0, 0, 0, 12, 0 > + }; > + > + (void)wait_to_complete; > + errno = ibv_query_port(priv->ctx, priv->port, &port_attr); > + if (errno) { > + WARN("port query failed: %s", strerror(errno)); > + return -1; > + } > + dev->data->dev_link = (struct rte_eth_link){ > + .link_speed = (ibv_rate_to_mbps(mult_to_ibv_rate > + (port_attr.active_speed)) * > + width_mult[(port_attr.active_width % > + sizeof(width_mult))]), > + .link_duplex = ETH_LINK_FULL_DUPLEX, > + .link_status = (port_attr.state == IBV_PORT_ACTIVE) > + }; > + if (memcmp(&port_attr, &priv->port_attr, sizeof(port_attr))) { > + /* Link status changed. */ > + priv->port_attr = port_attr; > + return 0; > + } > + /* Link status is still the same. */ > + return -1; > +} > + > +/** > + * DPDK callback to retrieve physical link information. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param wait_to_complete > + * Wait for request completion (ignored). > + */ > +static int > +mlx4_link_update(struct rte_eth_dev *dev, int wait_to_complete) > +{ > + struct priv *priv = dev->data->dev_private; > + int ret; > + > + priv_lock(priv); > + ret = mlx4_link_update_unlocked(dev, wait_to_complete); > + priv_unlock(priv); > + return ret; > +} > + > +/** > + * DPDK callback to change the MTU. > + * > + * Setting the MTU affects hardware MRU (packets larger than the MTU cannot be > + * received). Use this as a hint to enable/disable scattered packets support > + * and improve performance when not needed. > + * Since failure is not an option, reconfiguring queues on the fly is not > + * recommended. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param in_mtu > + * New MTU. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) > +{ > + struct priv *priv = dev->data->dev_private; > + int ret = 0; > + unsigned int i; > + uint16_t (*rx_func)(void *, struct rte_mbuf **, uint16_t) = > + mlx4_rx_burst; > + > + priv_lock(priv); > + /* Set kernel interface MTU first. */ > + if (priv_set_mtu(priv, mtu)) { > + ret = errno; > + WARN("cannot set port %u MTU to %u: %s", priv->port, mtu, > + strerror(ret)); > + goto out; > + } else > + DEBUG("adapter port %u MTU set to %u", priv->port, mtu); > + priv->mtu = mtu; > + /* Temporarily replace RX handler with a fake one, assuming it has not > + * been copied elsewhere. */ > + dev->rx_pkt_burst = removed_rx_burst; > + /* Make sure everyone has left mlx4_rx_burst() and uses > + * removed_rx_burst() instead. */ > + rte_wmb(); > + usleep(1000); > + /* Reconfigure each RX queue. */ > + for (i = 0; (i != priv->rxqs_n); ++i) { > + struct rxq *rxq = (*priv->rxqs)[i]; > + unsigned int max_frame_len; > + int sp; > + > + if (rxq == NULL) > + continue; > + /* Calculate new maximum frame length according to MTU and > + * toggle scattered support (sp) if necessary. */ > + max_frame_len = (priv->mtu + ETHER_HDR_LEN + > + (ETHER_MAX_VLAN_FRAME_LEN - ETHER_MAX_LEN)); > + sp = (max_frame_len > (rxq->mb_len - RTE_PKTMBUF_HEADROOM)); > + /* Provide new values to rxq_setup(). */ > + dev->data->dev_conf.rxmode.jumbo_frame = sp; > + dev->data->dev_conf.rxmode.max_rx_pkt_len = max_frame_len; > + ret = rxq_rehash(dev, rxq); > + if (ret) { > + /* Force SP RX if that queue requires it and abort. */ > + if (rxq->sp) > + rx_func = mlx4_rx_burst_sp; > + break; > + } > + /* Reenable non-RSS queue attributes. No need to check > + * for errors at this stage. */ > + if (!priv->rss) { > + rxq_mac_addrs_add(rxq); > + if (priv->promisc) > + rxq_promiscuous_enable(rxq); > + if (priv->allmulti) > + rxq_allmulticast_enable(rxq); > + } > + /* Scattered burst function takes priority. */ > + if (rxq->sp) > + rx_func = mlx4_rx_burst_sp; > + } > + /* Burst functions can now be called again. */ > + rte_wmb(); > + dev->rx_pkt_burst = rx_func; > +out: > + priv_unlock(priv); > + assert(ret >= 0); > + return -ret; > +} > + > +/** > + * DPDK callback to get flow control status. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param[out] fc_conf > + * Flow control output buffer. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_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 = ðpause; > + priv_lock(priv); > + if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { > + ret = errno; > + WARN("ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM)" > + " failed: %s", > + strerror(ret)); > + goto out; > + } > + > + fc_conf->autoneg = ethpause.autoneg; > + if (ethpause.rx_pause && ethpause.tx_pause) > + fc_conf->mode = RTE_FC_FULL; > + else if (ethpause.rx_pause) > + fc_conf->mode = RTE_FC_RX_PAUSE; > + else if (ethpause.tx_pause) > + 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; > +} > + > +/** > + * DPDK callback to modify flow control parameters. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param[in] fc_conf > + * Flow control parameters. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_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 > + }; > + int ret; > + > + ifr.ifr_data = ðpause; > + ethpause.autoneg = fc_conf->autoneg; > + if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || > + (fc_conf->mode & RTE_FC_RX_PAUSE)) > + ethpause.rx_pause = 1; > + else > + ethpause.rx_pause = 0; > + > + if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || > + (fc_conf->mode & RTE_FC_TX_PAUSE)) > + 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 = 0; > + > +out: > + priv_unlock(priv); > + assert(ret >= 0); > + return -ret; > +} > + > +/** > + * Configure a VLAN filter. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param vlan_id > + * VLAN ID to filter. > + * @param on > + * Toggle filter. > + * > + * @return > + * 0 on success, errno value on failure. > + */ > +static int > +vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) > +{ > + struct priv *priv = dev->data->dev_private; > + unsigned int i; > + unsigned int j = -1; > + > + DEBUG("%p: %s VLAN filter ID %" PRIu16, > + (void *)dev, (on ? "enable" : "disable"), vlan_id); > + for (i = 0; (i != elemof(priv->vlan_filter)); ++i) { > + if (!priv->vlan_filter[i].enabled) { > + /* Unused index, remember it. */ > + j = i; > + continue; > + } > + if (priv->vlan_filter[i].id != vlan_id) > + continue; > + /* This VLAN ID is already known, use its index. */ > + j = i; > + break; > + } > + /* Check if there's room for another VLAN filter. */ > + if (j == (unsigned int)-1) > + return ENOMEM; > + /* > + * VLAN filters apply to all configured MAC addresses, flow > + * specifications must be reconfigured accordingly. > + */ > + priv->vlan_filter[j].id = vlan_id; > + if ((on) && (!priv->vlan_filter[j].enabled)) { > + /* > + * Filter is disabled, enable it. > + * Rehashing flows in all RX queues is necessary. > + */ > + if (priv->rss) > + rxq_mac_addrs_del(&priv->rxq_parent); > + else > + for (i = 0; (i != priv->rxqs_n); ++i) > + if ((*priv->rxqs)[i] != NULL) > + rxq_mac_addrs_del((*priv->rxqs)[i]); > + priv->vlan_filter[j].enabled = 1; > + if (priv->started) { > + if (priv->rss) > + rxq_mac_addrs_add(&priv->rxq_parent); > + else > + for (i = 0; (i != priv->rxqs_n); ++i) { > + if ((*priv->rxqs)[i] == NULL) > + continue; > + rxq_mac_addrs_add((*priv->rxqs)[i]); > + } > + } > + } else if ((!on) && (priv->vlan_filter[j].enabled)) { > + /* > + * Filter is enabled, disable it. > + * Rehashing flows in all RX queues is necessary. > + */ > + if (priv->rss) > + rxq_mac_addrs_del(&priv->rxq_parent); > + else > + for (i = 0; (i != priv->rxqs_n); ++i) > + if ((*priv->rxqs)[i] != NULL) > + rxq_mac_addrs_del((*priv->rxqs)[i]); > + priv->vlan_filter[j].enabled = 0; > + if (priv->started) { > + if (priv->rss) > + rxq_mac_addrs_add(&priv->rxq_parent); > + else > + for (i = 0; (i != priv->rxqs_n); ++i) { > + if ((*priv->rxqs)[i] == NULL) > + continue; > + rxq_mac_addrs_add((*priv->rxqs)[i]); > + } > + } > + } > + return 0; > +} > + > +/** > + * DPDK callback to configure a VLAN filter. > + * > + * @param dev > + * Pointer to Ethernet device structure. > + * @param vlan_id > + * VLAN ID to filter. > + * @param on > + * Toggle filter. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) > +{ > + struct priv *priv = dev->data->dev_private; > + int ret; > + > + priv_lock(priv); > + ret = vlan_filter_set(dev, vlan_id, on); > + priv_unlock(priv); > + assert(ret >= 0); > + return -ret; > +} > + > +static const struct eth_dev_ops mlx4_dev_ops = { > + .dev_configure = mlx4_dev_configure, > + .dev_start = mlx4_dev_start, > + .dev_stop = mlx4_dev_stop, > + .dev_close = mlx4_dev_close, > + .promiscuous_enable = mlx4_promiscuous_enable, > + .promiscuous_disable = mlx4_promiscuous_disable, > + .allmulticast_enable = mlx4_allmulticast_enable, > + .allmulticast_disable = mlx4_allmulticast_disable, > + .link_update = mlx4_link_update, > + .stats_get = mlx4_stats_get, > + .stats_reset = mlx4_stats_reset, > + .queue_stats_mapping_set = NULL, > + .dev_infos_get = mlx4_dev_infos_get, > + .vlan_filter_set = mlx4_vlan_filter_set, > + .vlan_tpid_set = NULL, > + .vlan_strip_queue_set = NULL, > + .vlan_offload_set = NULL, > + .rx_queue_setup = mlx4_rx_queue_setup, > + .tx_queue_setup = mlx4_tx_queue_setup, > + .rx_queue_release = mlx4_rx_queue_release, > + .tx_queue_release = mlx4_tx_queue_release, > + .dev_led_on = NULL, > + .dev_led_off = NULL, > + .flow_ctrl_get = mlx4_dev_get_flow_ctrl, > + .flow_ctrl_set = mlx4_dev_set_flow_ctrl, > + .priority_flow_ctrl_set = NULL, > + .mac_addr_remove = mlx4_mac_addr_remove, > + .mac_addr_add = mlx4_mac_addr_add, > + .mtu_set = mlx4_dev_set_mtu, > + .fdir_add_signature_filter = NULL, > + .fdir_update_signature_filter = NULL, > + .fdir_remove_signature_filter = NULL, > + .fdir_add_perfect_filter = NULL, > + .fdir_update_perfect_filter = NULL, > + .fdir_remove_perfect_filter = NULL, > + .fdir_set_masks = NULL > +}; > + > +/** > + * Get PCI information from struct ibv_device. > + * > + * @param device > + * Pointer to Ethernet device structure. > + * @param[out] pci_addr > + * PCI bus address output buffer. > + * > + * @return > + * 0 on success, -1 on failure and errno is set. > + */ > +static int > +mlx4_ibv_device_to_pci_addr(const struct ibv_device *device, > + struct rte_pci_addr *pci_addr) > +{ > + FILE *file; > + char line[32]; > + MKSTR(path, "%s/device/uevent", device->ibdev_path); > + > + file = fopen(path, "rb"); > + if (file == NULL) > + return -1; > + while (fgets(line, sizeof(line), file) == line) { > + size_t len = strlen(line); > + int ret; > + > + /* Truncate long lines. */ > + if (len == (sizeof(line) - 1)) > + while (line[(len - 1)] != '\n') { > + ret = fgetc(file); > + if (ret == EOF) > + break; > + line[(len - 1)] = ret; > + } > + /* Extract information. */ > + if (sscanf(line, > + "PCI_SLOT_NAME=" > + "%" SCNx16 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n", > + &pci_addr->domain, > + &pci_addr->bus, > + &pci_addr->devid, > + &pci_addr->function) == 4) { > + ret = 0; > + break; > + } > + } > + fclose(file); > + return 0; > +} > + > +/** > + * Derive MAC address from port GID. > + * > + * @param[out] mac > + * MAC address output buffer. > + * @param port > + * Physical port number. > + * @param[in] gid > + * Port GID. > + */ > +static void > +mac_from_gid(uint8_t (*mac)[ETHER_ADDR_LEN], uint32_t port, uint8_t *gid) > +{ > + memcpy(&(*mac)[0], gid + 8, 3); > + memcpy(&(*mac)[3], gid + 13, 3); > + if (port == 1) > + (*mac)[0] ^= 2; > +} > + > +/* Support up to 32 adapters. */ > +static struct { > + struct rte_pci_addr pci_addr; /* associated PCI address */ > + uint32_t ports; /* physical ports bitfield. */ > +} mlx4_dev[32]; > + > +/** > + * Get device index in mlx4_dev[] from PCI bus address. > + * > + * @param[in] pci_addr > + * PCI bus address to look for. > + * > + * @return > + * mlx4_dev[] index on success, -1 on failure. > + */ > +static int > +mlx4_dev_idx(struct rte_pci_addr *pci_addr) > +{ > + unsigned int i; > + int ret = -1; > + > + assert(pci_addr != NULL); > + for (i = 0; (i != elemof(mlx4_dev)); ++i) { > + if ((mlx4_dev[i].pci_addr.domain == pci_addr->domain) && > + (mlx4_dev[i].pci_addr.bus == pci_addr->bus) && > + (mlx4_dev[i].pci_addr.devid == pci_addr->devid) && > + (mlx4_dev[i].pci_addr.function == pci_addr->function)) > + return i; > + if ((mlx4_dev[i].ports == 0) && (ret == -1)) > + ret = i; > + } > + return ret; > +} > + > +/** > + * Retrieve integer value from environment variable. > + * > + * @param[in] name > + * Environment variable name. > + * > + * @return > + * Integer value, 0 if the variable is not set. > + */ > +static int > +mlx4_getenv_int(const char *name) > +{ > + const char *val = getenv(name); > + > + if (val == NULL) > + return 0; > + return atoi(val); > +} > + > +static struct eth_driver mlx4_driver; > + > +/** > + * DPDK callback to register a PCI device. > + * > + * This function creates an Ethernet device for each port of a given > + * PCI device. > + * > + * @param[in] pci_drv > + * PCI driver structure (mlx4_driver). > + * @param[in] pci_dev > + * PCI device information. > + * > + * @return > + * 0 on success, negative errno value on failure. > + */ > +static int > +mlx4_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) > +{ > + struct ibv_device **list; > + struct ibv_device *ibv_dev; > + int err = 0; > + struct ibv_context *attr_ctx = NULL; > + struct ibv_device_attr device_attr; > + unsigned int vf; > + int idx; > + int i; > + > + (void)pci_drv; > + assert(pci_drv == &mlx4_driver.pci_drv); > + /* Get mlx4_dev[] index. */ > + idx = mlx4_dev_idx(&pci_dev->addr); > + if (idx == -1) { > + ERROR("this driver cannot support any more adapters"); > + return -ENOMEM; > + } > + DEBUG("using driver device index %d", idx); > + > + /* Save PCI address. */ > + mlx4_dev[idx].pci_addr = pci_dev->addr; > + list = ibv_get_device_list(&i); > + if (list == NULL) { > + assert(errno); > + if (errno == ENOSYS) { > + WARN("cannot list devices, is ib_uverbs loaded?"); > + return 0; > + } > + return -errno; > + } > + assert(i >= 0); > + /* > + * For each listed device, check related sysfs entry against > + * the provided PCI ID. > + */ > + while (i != 0) { > + struct rte_pci_addr pci_addr; > + > + --i; > + DEBUG("checking device \"%s\"", list[i]->name); > + if (mlx4_ibv_device_to_pci_addr(list[i], &pci_addr)) > + continue; > + if ((pci_dev->addr.domain != pci_addr.domain) || > + (pci_dev->addr.bus != pci_addr.bus) || > + (pci_dev->addr.devid != pci_addr.devid) || > + (pci_dev->addr.function != pci_addr.function)) > + continue; > + vf = (pci_dev->id.device_id == > + PCI_DEVICE_ID_MELLANOX_CONNECTX3VF); > + INFO("PCI information matches, using device \"%s\" (VF: %s)", > + list[i]->name, (vf ? "true" : "false")); > + attr_ctx = ibv_open_device(list[i]); > + err = errno; > + break; > + } > + if (attr_ctx == NULL) { > + ibv_free_device_list(list); > + switch (err) { > + case 0: > + WARN("cannot access device, is mlx4_ib loaded?"); > + return 0; > + case EINVAL: > + WARN("cannot use device, are drivers up to date?"); > + return 0; > + } > + assert(err > 0); > + return -err; > + } > + ibv_dev = list[i]; > + > + DEBUG("device opened"); > + if (ibv_query_device(attr_ctx, &device_attr)) > + goto error; > + INFO("%u port(s) detected", device_attr.phys_port_cnt); > + > + for (i = 0; i < device_attr.phys_port_cnt; i++) { > + uint32_t port = i + 1; /* ports are indexed from one */ > + uint32_t test = (1 << i); > + struct ibv_context *ctx = NULL; > + struct ibv_port_attr port_attr; > + struct ibv_pd *pd = NULL; > + struct priv *priv = NULL; > + struct rte_eth_dev *eth_dev; > +#if defined(INLINE_RECV) || defined(RSS_SUPPORT) > + struct ibv_exp_device_attr exp_device_attr; > +#endif > + struct ether_addr mac; > + union ibv_gid temp_gid; > + > +#ifdef RSS_SUPPORT > + exp_device_attr.comp_mask = > + (IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS | > + IBV_EXP_DEVICE_ATTR_RSS_TBL_SZ); > +#endif /* RSS_SUPPORT */ > + > + DEBUG("using port %u (%08" PRIx32 ")", port, test); > + > + ctx = ibv_open_device(ibv_dev); > + if (ctx == NULL) > + goto port_error; > + > + /* Check port status. */ > + err = ibv_query_port(ctx, port, &port_attr); > + if (err) { > + ERROR("port query failed: %s", strerror(err)); > + goto port_error; > + } > + if (port_attr.state != IBV_PORT_ACTIVE) > + WARN("bad state for port %d: \"%s\" (%d)", > + port, ibv_port_state_str(port_attr.state), > + port_attr.state); > + > + /* Allocate protection domain. */ > + pd = ibv_alloc_pd(ctx); > + if (pd == NULL) { > + ERROR("PD allocation failure"); > + err = ENOMEM; > + goto port_error; > + } > + > + mlx4_dev[idx].ports |= test; > + > + /* from rte_ethdev.c */ > + priv = rte_zmalloc("ethdev private structure", > + sizeof(*priv), > + RTE_CACHE_LINE_SIZE); > + if (priv == NULL) { > + ERROR("priv allocation failure"); > + err = ENOMEM; > + goto port_error; > + } > + > + priv->ctx = ctx; > + priv->device_attr = device_attr; > + priv->port_attr = port_attr; > + priv->port = port; > + priv->pd = pd; > + priv->mtu = ETHER_MTU; > +#ifdef RSS_SUPPORT > + if (ibv_exp_query_device(ctx, &exp_device_attr)) { > + INFO("experimental ibv_exp_query_device"); > + goto port_error; > + } > + if ((exp_device_attr.exp_device_cap_flags & > + IBV_EXP_DEVICE_QPG) && > + (exp_device_attr.exp_device_cap_flags & > + IBV_EXP_DEVICE_UD_RSS) && > + (exp_device_attr.comp_mask & > + IBV_EXP_DEVICE_ATTR_RSS_TBL_SZ) && > + (exp_device_attr.max_rss_tbl_sz > 0)) { > + priv->hw_qpg = 1; > + priv->hw_rss = 1; > + priv->max_rss_tbl_sz = exp_device_attr.max_rss_tbl_sz; > + } else { > + priv->hw_qpg = 0; > + priv->hw_rss = 0; > + priv->max_rss_tbl_sz = 0; > + } > + priv->hw_tss = !!(exp_device_attr.exp_device_cap_flags & > + IBV_EXP_DEVICE_UD_TSS); > + DEBUG("device flags: %s%s%s", > + (priv->hw_qpg ? "IBV_DEVICE_QPG " : ""), > + (priv->hw_tss ? "IBV_DEVICE_TSS " : ""), > + (priv->hw_rss ? "IBV_DEVICE_RSS " : "")); > + if (priv->hw_rss) > + DEBUG("maximum RSS indirection table size: %u", > + exp_device_attr.max_rss_tbl_sz); > +#endif /* RSS_SUPPORT */ > + > +#ifdef INLINE_RECV > + priv->inl_recv_size = mlx4_getenv_int("MLX4_INLINE_RECV_SIZE"); > + > + if (priv->inl_recv_size) { > + exp_device_attr.comp_mask = > + IBV_EXP_DEVICE_ATTR_INLINE_RECV_SZ; > + if (ibv_exp_query_device(ctx, &exp_device_attr)) { > + INFO("Couldn't query device for inline-receive" > + " capabilities."); > + priv->inl_recv_size = 0; > + } else { > + if ((unsigned)exp_device_attr.inline_recv_sz < > + priv->inl_recv_size) { > + INFO("Max inline-receive (%d) <" > + " requested inline-receive (%u)", > + exp_device_attr.inline_recv_sz, > + priv->inl_recv_size); > + priv->inl_recv_size = > + exp_device_attr.inline_recv_sz; > + } > + } > + INFO("Set inline receive size to %u", > + priv->inl_recv_size); > + } > +#endif /* INLINE_RECV */ > + > + (void)mlx4_getenv_int; > + priv->vf = vf; > + if (ibv_query_gid(ctx, port, 0, &temp_gid)) { > + ERROR("ibv_query_gid() failure"); > + goto port_error; > + } > + /* Configure the first MAC address by default. */ > + mac_from_gid(&mac.addr_bytes, port, temp_gid.raw); > + INFO("port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x", > + priv->port, > + mac.addr_bytes[0], mac.addr_bytes[1], > + mac.addr_bytes[2], mac.addr_bytes[3], > + mac.addr_bytes[4], mac.addr_bytes[5]); > + /* Register MAC and broadcast addresses. */ > + claim_zero(priv_mac_addr_add(priv, 0, > + (const uint8_t (*)[ETHER_ADDR_LEN]) > + mac.addr_bytes)); > + claim_zero(priv_mac_addr_add(priv, 1, > + &(const uint8_t [ETHER_ADDR_LEN]) > + { "\xff\xff\xff\xff\xff\xff" })); > +#ifndef NDEBUG > + { > + char ifname[IF_NAMESIZE]; > + > + if (priv_get_ifname(priv, &ifname) == 0) > + DEBUG("port %u ifname is \"%s\"", > + priv->port, ifname); > + else > + DEBUG("port %u ifname is unknown", priv->port); > + } > +#endif > + /* Get actual MTU if possible. */ > + priv_get_mtu(priv, &priv->mtu); > + DEBUG("port %u MTU is %u", priv->port, priv->mtu); > + > + /* from rte_ethdev.c */ > + { > + char name[RTE_ETH_NAME_MAX_LEN]; > + > + snprintf(name, sizeof(name), "%s port %u", > + ibv_get_device_name(ibv_dev), port); > + eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI); > + } > + if (eth_dev == NULL) { > + ERROR("can not allocate rte ethdev"); > + err = ENOMEM; > + goto port_error; > + } > + > + eth_dev->data->dev_private = priv; > + eth_dev->pci_dev = pci_dev; > + eth_dev->driver = &mlx4_driver; > + eth_dev->data->rx_mbuf_alloc_failed = 0; > + eth_dev->data->mtu = ETHER_MTU; > + > + priv->dev = eth_dev; > + eth_dev->dev_ops = &mlx4_dev_ops; > + eth_dev->data->mac_addrs = priv->mac; > + > + /* Bring Ethernet device up. */ > + DEBUG("forcing Ethernet interface up"); > + priv_set_flags(priv, ~IFF_UP, IFF_UP); > + continue; > + > +port_error: > + rte_free(priv); > + if (pd) > + claim_zero(ibv_dealloc_pd(pd)); > + if (ctx) > + claim_zero(ibv_close_device(ctx)); > + break; > + } > + > + /* > + * XXX if something went wrong in the loop above, there is a resource > + * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as > + * long as the dpdk does not provide a way to deallocate a ethdev and a > + * way to enumerate the registered ethdevs to free the previous ones. > + */ > + > + /* no port found, complain */ > + if (!mlx4_dev[idx].ports) { > + err = ENODEV; > + goto error; > + } > + > +error: > + if (attr_ctx) > + claim_zero(ibv_close_device(attr_ctx)); > + if (list) > + ibv_free_device_list(list); > + assert(err >= 0); > + return -err; > +} > + > +static const struct rte_pci_id mlx4_pci_id_map[] = { > + { > + .vendor_id = PCI_VENDOR_ID_MELLANOX, > + .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX3, > + .subsystem_vendor_id = PCI_ANY_ID, > + .subsystem_device_id = PCI_ANY_ID > + }, > + { > + .vendor_id = PCI_VENDOR_ID_MELLANOX, > + .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO, > + .subsystem_vendor_id = PCI_ANY_ID, > + .subsystem_device_id = PCI_ANY_ID > + }, > + { > + .vendor_id = PCI_VENDOR_ID_MELLANOX, > + .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX3VF, > + .subsystem_vendor_id = PCI_ANY_ID, > + .subsystem_device_id = PCI_ANY_ID > + }, > + { > + .vendor_id = 0 > + } > +}; > + > +static struct eth_driver mlx4_driver = { > + .pci_drv = { > + .name = MLX4_DRIVER_NAME, > + .id_table = mlx4_pci_id_map, > + .devinit = mlx4_pci_devinit, > + }, > + .dev_private_size = sizeof(struct priv) > +}; > + > +/** > + * Driver initialization routine. > + */ > +static int > +rte_mlx4_pmd_init(const char *name, const char *args) > +{ > + (void)name; > + (void)args; > + rte_eal_pci_register(&mlx4_driver.pci_drv); > + return 0; > +} > + > +static struct rte_driver rte_mlx4_driver = { > + .type = PMD_PDEV, > + .name = MLX4_DRIVER_NAME, > + .init = rte_mlx4_pmd_init, > +}; > + > +PMD_REGISTER_DRIVER(rte_mlx4_driver) > diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h > new file mode 100644 > index 0000000..433aa3b > --- /dev/null > +++ b/drivers/net/mlx4/mlx4.h > @@ -0,0 +1,157 @@ > +/*- > + * BSD LICENSE > + * > + * Copyright 2012-2015 6WIND S.A. > + * Copyright 2012 Mellanox. > + * > + * Redistribution and use in source and binary forms, with or without > + * modification, are permitted provided that the following conditions > + * are met: > + * > + * * Redistributions of source code must retain the above copyright > + * notice, this list of conditions and the following disclaimer. > + * * Redistributions in binary form must reproduce the above copyright > + * notice, this list of conditions and the following disclaimer in > + * the documentation and/or other materials provided with the > + * distribution. > + * * Neither the name of 6WIND S.A. nor the names of its > + * contributors may be used to endorse or promote products derived > + * from this software without specific prior written permission. > + * > + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS > + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT > + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR > + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT > + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, > + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT > + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, > + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY > + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT > + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE > + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. > + */ > + > +#ifndef RTE_PMD_MLX4_H_ > +#define RTE_PMD_MLX4_H_ > + > +#include > +#include > +#include > + > +/* > + * Maximum number of simultaneous MAC addresses supported. > + * > + * According to ConnectX's Programmer Reference Manual: > + * The L2 Address Match is implemented by comparing a MAC/VLAN combination > + * of 128 MAC addresses and 127 VLAN values, comprising 128x127 possible > + * L2 addresses. > + */ > +#define MLX4_MAX_MAC_ADDRESSES 128 > + > +/* Maximum number of simultaneous VLAN filters supported. See above. */ > +#define MLX4_MAX_VLAN_IDS 127 > + > +/* Maximum number of Scatter/Gather Elements per Work Request. */ > +#ifndef MLX4_PMD_SGE_WR_N > +#define MLX4_PMD_SGE_WR_N 4 > +#endif > + > +/* Maximum size for inline data. */ > +#ifndef MLX4_PMD_MAX_INLINE > +#define MLX4_PMD_MAX_INLINE 0 > +#endif > + > +/* > + * Maximum number of cached Memory Pools (MPs) per TX queue. Each RTE MP > + * from which buffers are to be transmitted will have to be mapped by this > + * driver to their own Memory Region (MR). This is a slow operation. > + * > + * This value is always 1 for RX queues. > + */ > +#ifndef MLX4_PMD_TX_MP_CACHE > +#define MLX4_PMD_TX_MP_CACHE 8 > +#endif > + > +/* > + * If defined, only use software counters. The PMD will never ask the hardware > + * for these, and many of them won't be available. > + */ > +#ifndef MLX4_PMD_SOFT_COUNTERS > +#define MLX4_PMD_SOFT_COUNTERS 1 > +#endif > + > +enum { > + PCI_VENDOR_ID_MELLANOX = 0x15b3, > +}; > + > +enum { > + PCI_DEVICE_ID_MELLANOX_CONNECTX3 = 0x1003, > + PCI_DEVICE_ID_MELLANOX_CONNECTX3VF = 0x1004, > + PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO = 0x1007, > +}; > + > +#define MLX4_DRIVER_NAME "librte_pmd_mlx4" > + > +/* Bit-field manipulation. */ > +#define BITFIELD_DECLARE(bf, type, size) \ > + type bf[(((size_t)(size) / (sizeof(type) * CHAR_BIT)) + \ > + !!((size_t)(size) % (sizeof(type) * CHAR_BIT)))] > +#define BITFIELD_DEFINE(bf, type, size) \ > + BITFIELD_DECLARE((bf), type, (size)) = { 0 } > +#define BITFIELD_SET(bf, b) \ > + (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ > + (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] |= \ > + ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))) > +#define BITFIELD_RESET(bf, b) \ > + (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ > + (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] &= \ > + ~((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))) > +#define BITFIELD_ISSET(bf, b) \ > + (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ > + !!(((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] & \ > + ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT)))))) > + > +/* Number of elements in array. */ > +#define elemof(a) (sizeof(a) / sizeof((a)[0])) > + > +/* Cast pointer p to structure member m to its parent structure of type t. */ > +#define containerof(p, t, m) ((t *)((uint8_t *)(p) - offsetof(t, m))) > + > +/* Branch prediction helpers. */ > +#ifndef likely > +#define likely(c) __builtin_expect(!!(c), 1) > +#endif > +#ifndef unlikely > +#define unlikely(c) __builtin_expect(!!(c), 0) > +#endif > + > +/* Debugging */ > +#ifndef NDEBUG > +#include > +#define DEBUG__(m, ...) \ > + (fprintf(stderr, "%s:%d: %s(): " m "%c", \ > + __FILE__, __LINE__, __func__, __VA_ARGS__), \ > + fflush(stderr), \ > + (void)0) > +/* > + * Save/restore errno around DEBUG__(). > + * XXX somewhat undefined behavior, but works. > + */ > +#define DEBUG_(...) \ > + (errno = ((int []){ \ > + *(volatile int *)&errno, \ > + (DEBUG__(__VA_ARGS__), 0) \ > + })[0]) > +#define DEBUG(...) DEBUG_(__VA_ARGS__, '\n') > +#define claim_zero(...) assert((__VA_ARGS__) == 0) > +#define claim_nonzero(...) assert((__VA_ARGS__) != 0) > +#define claim_positive(...) assert((__VA_ARGS__) >= 0) > +#else /* NDEBUG */ > +/* No-ops. */ > +#define DEBUG(...) (void)0 > +#define claim_zero(...) (__VA_ARGS__) > +#define claim_nonzero(...) (__VA_ARGS__) > +#define claim_positive(...) (__VA_ARGS__) > +#endif /* NDEBUG */ > + > +#endif /* RTE_PMD_MLX4_H_ */ > diff --git a/drivers/net/mlx4/rte_pmd_mlx4_version.map b/drivers/net/mlx4/rte_pmd_mlx4_version.map > new file mode 100644 > index 0000000..ef35398 > --- /dev/null > +++ b/drivers/net/mlx4/rte_pmd_mlx4_version.map > @@ -0,0 +1,4 @@ > +DPDK_2.0 { > + > + local: *; > +}; > diff --git a/lib/Makefile b/lib/Makefile > index ffd7870..80978cd 100644 > --- a/lib/Makefile > +++ b/lib/Makefile > @@ -41,7 +41,6 @@ DIRS-$(CONFIG_RTE_LIBRTE_TIMER) += librte_timer > DIRS-$(CONFIG_RTE_LIBRTE_CFGFILE) += librte_cfgfile > DIRS-$(CONFIG_RTE_LIBRTE_CMDLINE) += librte_cmdline > DIRS-$(CONFIG_RTE_LIBRTE_ETHER) += librte_ether > -DIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += librte_pmd_mlx4 > DIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += librte_pmd_ring > DIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += librte_pmd_pcap > DIRS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += librte_pmd_virtio > diff --git a/lib/librte_pmd_mlx4/Makefile b/lib/librte_pmd_mlx4/Makefile > deleted file mode 100644 > index 97b364a..0000000 > --- a/lib/librte_pmd_mlx4/Makefile > +++ /dev/null > @@ -1,121 +0,0 @@ > -# BSD LICENSE > -# > -# Copyright 2012-2015 6WIND S.A. > -# Copyright 2012 Mellanox. > -# > -# Redistribution and use in source and binary forms, with or without > -# modification, are permitted provided that the following conditions > -# are met: > -# > -# * Redistributions of source code must retain the above copyright > -# notice, this list of conditions and the following disclaimer. > -# * Redistributions in binary form must reproduce the above copyright > -# notice, this list of conditions and the following disclaimer in > -# the documentation and/or other materials provided with the > -# distribution. > -# * Neither the name of 6WIND S.A. nor the names of its > -# contributors may be used to endorse or promote products derived > -# from this software without specific prior written permission. > -# > -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS > -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT > -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR > -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT > -# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, > -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT > -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, > -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY > -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT > -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE > -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. > - > -include $(RTE_SDK)/mk/rte.vars.mk > - > -# Library name. > -LIB = librte_pmd_mlx4.a > - > -# Sources. > -SRCS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += mlx4.c > - > -# Dependencies. > -DEPDIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += lib/librte_ether > -DEPDIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += lib/librte_mbuf > -DEPDIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += lib/librte_eal > -DEPDIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += lib/librte_mempool > -DEPDIRS-$(CONFIG_RTE_LIBRTE_MLX4_PMD) += lib/librte_malloc > - > -# Basic CFLAGS. > -CFLAGS += -O3 > -CFLAGS += -std=gnu99 -Wall -Wextra > -CFLAGS += -g > -CFLAGS += -I. > -CFLAGS += -D_XOPEN_SOURCE=600 > -CFLAGS += $(WERROR_FLAGS) > - > -# A few warnings cannot be avoided in external headers. > -CFLAGS += -Wno-error=cast-qual > - > -EXPORT_MAP := rte_pmd_mlx4_version.map > -LIBABIVER := 1 > - > -# DEBUG which is usually provided on the command-line may enable > -# CONFIG_RTE_LIBRTE_MLX4_DEBUG. > -ifeq ($(DEBUG),1) > -CONFIG_RTE_LIBRTE_MLX4_DEBUG := y > -endif > - > -# User-defined CFLAGS. > -ifeq ($(CONFIG_RTE_LIBRTE_MLX4_DEBUG),y) > -CFLAGS += -pedantic -UNDEBUG -DPEDANTIC > -else > -CFLAGS += -DNDEBUG -UPEDANTIC > -endif > - > -ifdef CONFIG_RTE_LIBRTE_MLX4_SGE_WR_N > -CFLAGS += -DMLX4_PMD_SGE_WR_N=$(CONFIG_RTE_LIBRTE_MLX4_SGE_WR_N) > -endif > - > -ifdef CONFIG_RTE_LIBRTE_MLX4_MAX_INLINE > -CFLAGS += -DMLX4_PMD_MAX_INLINE=$(CONFIG_RTE_LIBRTE_MLX4_MAX_INLINE) > -endif > - > -ifdef CONFIG_RTE_LIBRTE_MLX4_TX_MP_CACHE > -CFLAGS += -DMLX4_PMD_TX_MP_CACHE=$(CONFIG_RTE_LIBRTE_MLX4_TX_MP_CACHE) > -endif > - > -ifdef CONFIG_RTE_LIBRTE_MLX4_SOFT_COUNTERS > -CFLAGS += -DMLX4_PMD_SOFT_COUNTERS=$(CONFIG_RTE_LIBRTE_MLX4_SOFT_COUNTERS) > -endif > - > -include $(RTE_SDK)/mk/rte.lib.mk > - > -# Generate and clean-up mlx4_autoconf.h. > - > -export CC CFLAGS CPPFLAGS EXTRA_CFLAGS EXTRA_CPPFLAGS > -export AUTO_CONFIG_CFLAGS = -Wno-error > - > -ifndef V > -AUTOCONF_OUTPUT := >/dev/null > -endif > - > -mlx4_autoconf.h: $(RTE_SDK)/scripts/auto-config-h.sh > - $Q $(RM) -f -- '$@' > - $Q sh -- '$<' '$@' \ > - RSS_SUPPORT \ > - infiniband/verbs.h \ > - enum IBV_EXP_DEVICE_UD_RSS $(AUTOCONF_OUTPUT) > - $Q sh -- '$<' '$@' \ > - INLINE_RECV \ > - infiniband/verbs.h \ > - enum IBV_EXP_DEVICE_ATTR_INLINE_RECV_SZ $(AUTOCONF_OUTPUT) > - $Q sh -- '$<' '$@' \ > - SEND_RAW_WR_SUPPORT \ > - infiniband/verbs.h \ > - type 'struct ibv_send_wr_raw' $(AUTOCONF_OUTPUT) > - > -mlx4.o: mlx4_autoconf.h > - > -clean_mlx4: FORCE > - $Q rm -f -- mlx4_autoconf.h > - > -clean: clean_mlx4 > diff --git a/lib/librte_pmd_mlx4/mlx4.c b/lib/librte_pmd_mlx4/mlx4.c > deleted file mode 100644 > index f915bc1..0000000 > --- a/lib/librte_pmd_mlx4/mlx4.c > +++ /dev/null > @@ -1,4686 +0,0 @@ > -/*- > - * BSD LICENSE > - * > - * Copyright 2012-2015 6WIND S.A. > - * Copyright 2012 Mellanox. > - * > - * Redistribution and use in source and binary forms, with or without > - * modification, are permitted provided that the following conditions > - * are met: > - * > - * * Redistributions of source code must retain the above copyright > - * notice, this list of conditions and the following disclaimer. > - * * Redistributions in binary form must reproduce the above copyright > - * notice, this list of conditions and the following disclaimer in > - * the documentation and/or other materials provided with the > - * distribution. > - * * Neither the name of 6WIND S.A. nor the names of its > - * contributors may be used to endorse or promote products derived > - * from this software without specific prior written permission. > - * > - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS > - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT > - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR > - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT > - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, > - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT > - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, > - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY > - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT > - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE > - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. > - */ > - > -/* > - * Known limitations: > - * - Multiple RX VLAN filters can be configured, but only the first one > - * works properly. > - * - RSS hash key and options cannot be modified. > - * - Hardware counters aren't implemented. > - */ > - > -/* System headers. */ > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > - > -/* Verbs header. */ > -/* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */ > -#ifdef PEDANTIC > -#pragma GCC diagnostic ignored "-pedantic" > -#endif > -#include > -#ifdef PEDANTIC > -#pragma GCC diagnostic error "-pedantic" > -#endif > - > -/* DPDK headers don't like -pedantic. */ > -#ifdef PEDANTIC > -#pragma GCC diagnostic ignored "-pedantic" > -#endif > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#include > -#ifdef PEDANTIC > -#pragma GCC diagnostic error "-pedantic" > -#endif > - > -/* Generated configuration header. */ > -#include "mlx4_autoconf.h" > - > -/* PMD header. */ > -#include "mlx4.h" > - > -/* Runtime logging through RTE_LOG() is enabled when not in debugging mode. > - * Intermediate LOG_*() macros add the required end-of-line characters. */ > -#ifndef NDEBUG > -#define INFO(...) DEBUG(__VA_ARGS__) > -#define WARN(...) DEBUG(__VA_ARGS__) > -#define ERROR(...) DEBUG(__VA_ARGS__) > -#else > -#define LOG__(level, m, ...) \ > - RTE_LOG(level, PMD, MLX4_DRIVER_NAME ": " m "%c", __VA_ARGS__) > -#define LOG_(level, ...) LOG__(level, __VA_ARGS__, '\n') > -#define INFO(...) LOG_(INFO, __VA_ARGS__) > -#define WARN(...) LOG_(WARNING, __VA_ARGS__) > -#define ERROR(...) LOG_(ERR, __VA_ARGS__) > -#endif > - > -/* Convenience macros for accessing mbuf fields. */ > -#define NEXT(m) ((m)->next) > -#define DATA_LEN(m) ((m)->data_len) > -#define PKT_LEN(m) ((m)->pkt_len) > -#define DATA_OFF(m) ((m)->data_off) > -#define SET_DATA_OFF(m, o) ((m)->data_off = (o)) > -#define NB_SEGS(m) ((m)->nb_segs) > -#define PORT(m) ((m)->port) > - > -/* Work Request ID data type (64 bit). */ > -typedef union { > - struct { > - uint32_t id; > - uint16_t offset; > - } data; > - uint64_t raw; > -} wr_id_t; > - > -#define WR_ID(o) (((wr_id_t *)&(o))->data) > - > -/* Compile-time check. */ > -static inline void wr_id_t_check(void) > -{ > - wr_id_t check[1 + (2 * -!(sizeof(wr_id_t) == sizeof(uint64_t)))]; > - > - (void)check; > - (void)wr_id_t_check; > -} > - > -/* If raw send operations are available, use them since they are faster. */ > -#ifdef SEND_RAW_WR_SUPPORT > -typedef struct ibv_send_wr_raw mlx4_send_wr_t; > -#define mlx4_post_send ibv_post_send_raw > -#else > -typedef struct ibv_send_wr mlx4_send_wr_t; > -#define mlx4_post_send ibv_post_send > -#endif > - > -struct mlx4_rxq_stats { > - unsigned int idx; /**< Mapping index. */ > -#ifdef MLX4_PMD_SOFT_COUNTERS > - uint64_t ipackets; /**< Total of successfully received packets. */ > - uint64_t ibytes; /**< Total of successfully received bytes. */ > -#endif > - uint64_t idropped; /**< Total of packets dropped when RX ring full. */ > - uint64_t rx_nombuf; /**< Total of RX mbuf allocation failures. */ > -}; > - > -struct mlx4_txq_stats { > - unsigned int idx; /**< Mapping index. */ > -#ifdef MLX4_PMD_SOFT_COUNTERS > - uint64_t opackets; /**< Total of successfully sent packets. */ > - uint64_t obytes; /**< Total of successfully sent bytes. */ > -#endif > - uint64_t odropped; /**< Total of packets not sent when TX ring full. */ > -}; > - > -/* RX element (scattered packets). */ > -struct rxq_elt_sp { > - struct ibv_recv_wr wr; /* Work Request. */ > - struct ibv_sge sges[MLX4_PMD_SGE_WR_N]; /* Scatter/Gather Elements. */ > - struct rte_mbuf *bufs[MLX4_PMD_SGE_WR_N]; /* SGEs buffers. */ > -}; > - > -/* RX element. */ > -struct rxq_elt { > - struct ibv_recv_wr wr; /* Work Request. */ > - struct ibv_sge sge; /* Scatter/Gather Element. */ > - /* mbuf pointer is derived from WR_ID(wr.wr_id).offset. */ > -}; > - > -/* RX queue descriptor. */ > -struct rxq { > - struct priv *priv; /* Back pointer to private data. */ > - struct rte_mempool *mp; /* Memory Pool for allocations. */ > - struct ibv_mr *mr; /* Memory Region (for mp). */ > - struct ibv_cq *cq; /* Completion Queue. */ > - struct ibv_qp *qp; /* Queue Pair. */ > - /* > - * There is exactly one flow configured per MAC address. Each flow > - * may contain several specifications, one per configured VLAN ID. > - */ > - BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES); > - struct ibv_exp_flow *mac_flow[MLX4_MAX_MAC_ADDRESSES]; > - struct ibv_exp_flow *promisc_flow; /* Promiscuous flow. */ > - struct ibv_exp_flow *allmulti_flow; /* Multicast flow. */ > - unsigned int port_id; /* Port ID for incoming packets. */ > - unsigned int elts_n; /* (*elts)[] length. */ > - union { > - struct rxq_elt_sp (*sp)[]; /* Scattered RX elements. */ > - struct rxq_elt (*no_sp)[]; /* RX elements. */ > - } elts; > - unsigned int sp:1; /* Use scattered RX elements. */ > - uint32_t mb_len; /* Length of a mp-issued mbuf. */ > - struct mlx4_rxq_stats stats; /* RX queue counters. */ > - unsigned int socket; /* CPU socket ID for allocations. */ > -}; > - > -/* TX element. */ > -struct txq_elt { > - mlx4_send_wr_t wr; /* Work Request. */ > - struct ibv_sge sges[MLX4_PMD_SGE_WR_N]; /* Scatter/Gather Elements. */ > - /* mbuf pointer is derived from WR_ID(wr.wr_id).offset. */ > -}; > - > -/* Linear buffer type. It is used when transmitting buffers with too many > - * segments that do not fit the hardware queue (see max_send_sge). > - * Extra segments are copied (linearized) in such buffers, replacing the > - * last SGE during TX. > - * The size is arbitrary but large enough to hold a jumbo frame with > - * 8 segments considering mbuf.buf_len is about 2048 bytes. */ > -typedef uint8_t linear_t[16384]; > - > -/* TX queue descriptor. */ > -struct txq { > - struct priv *priv; /* Back pointer to private data. */ > - struct { > - struct rte_mempool *mp; /* Cached Memory Pool. */ > - struct ibv_mr *mr; /* Memory Region (for mp). */ > - uint32_t lkey; /* mr->lkey */ > - } mp2mr[MLX4_PMD_TX_MP_CACHE]; /* MP to MR translation table. */ > - struct ibv_cq *cq; /* Completion Queue. */ > - struct ibv_qp *qp; /* Queue Pair. */ > -#if MLX4_PMD_MAX_INLINE > 0 > - uint32_t max_inline; /* Max inline send size <= MLX4_PMD_MAX_INLINE. */ > -#endif > - unsigned int elts_n; /* (*elts)[] length. */ > - struct txq_elt (*elts)[]; /* TX elements. */ > - unsigned int elts_head; /* Current index in (*elts)[]. */ > - unsigned int elts_tail; /* First element awaiting completion. */ > - unsigned int elts_comp; /* Number of completion requests. */ > - struct mlx4_txq_stats stats; /* TX queue counters. */ > - linear_t (*elts_linear)[]; /* Linearized buffers. */ > - struct ibv_mr *mr_linear; /* Memory Region for linearized buffers. */ > - unsigned int socket; /* CPU socket ID for allocations. */ > -}; > - > -struct priv { > - struct rte_eth_dev *dev; /* Ethernet device. */ > - struct ibv_context *ctx; /* Verbs context. */ > - struct ibv_device_attr device_attr; /* Device properties. */ > - struct ibv_port_attr port_attr; /* Physical port properties. */ > - struct ibv_pd *pd; /* Protection Domain. */ > - /* > - * MAC addresses array and configuration bit-field. > - * An extra entry that cannot be modified by the DPDK is reserved > - * for broadcast frames (destination MAC address ff:ff:ff:ff:ff:ff). > - */ > - struct ether_addr mac[MLX4_MAX_MAC_ADDRESSES]; > - BITFIELD_DECLARE(mac_configured, uint32_t, MLX4_MAX_MAC_ADDRESSES); > - /* VLAN filters. */ > - struct { > - unsigned int enabled:1; /* If enabled. */ > - unsigned int id:12; /* VLAN ID (0-4095). */ > - } vlan_filter[MLX4_MAX_VLAN_IDS]; /* VLAN filters table. */ > - /* Device properties. */ > - uint16_t mtu; /* Configured MTU. */ > - uint8_t port; /* Physical port number. */ > - unsigned int started:1; /* Device started, flows enabled. */ > - unsigned int promisc:1; /* Device in promiscuous mode. */ > - unsigned int promisc_ok:1; /* Promiscuous flow is supported. */ > - unsigned int allmulti:1; /* Device receives all multicast packets. */ > - unsigned int hw_qpg:1; /* QP groups are supported. */ > - unsigned int hw_tss:1; /* TSS is supported. */ > - unsigned int hw_rss:1; /* RSS is supported. */ > - unsigned int rss:1; /* RSS is enabled. */ > - unsigned int vf:1; /* This is a VF device. */ > -#ifdef INLINE_RECV > - unsigned int inl_recv_size; /* Inline recv size */ > -#endif > - unsigned int max_rss_tbl_sz; /* Maximum number of RSS queues. */ > - /* RX/TX queues. */ > - struct rxq rxq_parent; /* Parent queue when RSS is enabled. */ > - unsigned int rxqs_n; /* RX queues array size. */ > - unsigned int txqs_n; /* TX queues array size. */ > - struct rxq *(*rxqs)[]; /* RX queues. */ > - struct txq *(*txqs)[]; /* TX queues. */ > - rte_spinlock_t lock; /* Lock for control functions. */ > -}; > - > -/** > - * Lock private structure to protect it from concurrent access in the > - * control path. > - * > - * @param priv > - * Pointer to private structure. > - */ > -static void > -priv_lock(struct priv *priv) > -{ > - rte_spinlock_lock(&priv->lock); > -} > - > -/** > - * Unlock private structure. > - * > - * @param priv > - * Pointer to private structure. > - */ > -static void > -priv_unlock(struct priv *priv) > -{ > - rte_spinlock_unlock(&priv->lock); > -} > - > -/* Allocate a buffer on the stack and fill it with a printf format string. */ > -#define MKSTR(name, ...) \ > - char name[snprintf(NULL, 0, __VA_ARGS__) + 1]; \ > - \ > - snprintf(name, sizeof(name), __VA_ARGS__) > - > -/** > - * Get interface name from private structure. > - * > - * @param[in] priv > - * Pointer to private structure. > - * @param[out] ifname > - * Interface name output buffer. > - * > - * @return > - * 0 on success, -1 on failure and errno is set. > - */ > -static int > -priv_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE]) > -{ > - int ret = -1; > - DIR *dir; > - struct dirent *dent; > - > - { > - MKSTR(path, "%s/device/net", priv->ctx->device->ibdev_path); > - > - dir = opendir(path); > - if (dir == NULL) > - return -1; > - } > - while ((dent = readdir(dir)) != NULL) { > - char *name = dent->d_name; > - FILE *file; > - unsigned int dev_id; > - int r; > - > - if ((name[0] == '.') && > - ((name[1] == '\0') || > - ((name[1] == '.') && (name[2] == '\0')))) > - continue; > - > - MKSTR(path, "%s/device/net/%s/dev_id", > - priv->ctx->device->ibdev_path, name); > - > - file = fopen(path, "rb"); > - if (file == NULL) > - continue; > - r = fscanf(file, "%x", &dev_id); > - fclose(file); > - if ((r == 1) && (dev_id == (priv->port - 1u))) { > - snprintf(*ifname, sizeof(*ifname), "%s", name); > - ret = 0; > - break; > - } > - } > - closedir(dir); > - return ret; > -} > - > -/** > - * 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; > - > - MKSTR(path, "%s/device/net/%s/%s", priv->ctx->device->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->ctx->device->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; > - } > - return 0; > -} > - > -/** > - * Perform ifreq ioctl() on associated Ethernet device. > - * > - * @param[in] priv > - * Pointer to private structure. > - * @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. > - */ > -static int > -priv_ifreq(const struct priv *priv, int req, struct ifreq *ifr) > -{ > - int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); > - int ret = -1; > - > - if (sock == -1) > - return ret; > - if (priv_get_ifname(priv, &ifr->ifr_name) == 0) > - ret = ioctl(sock, req, ifr); > - close(sock); > - return ret; > -} > - > -/** > - * Get device MTU. > - * > - * @param priv > - * Pointer to private structure. > - * @param[out] mtu > - * MTU value output buffer. > - * > - * @return > - * 0 on success, -1 on failure and errno is set. > - */ > -static 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; > -} > - > -/** > - * Set device MTU. > - * > - * @param priv > - * Pointer to private structure. > - * @param mtu > - * MTU value to set. > - * > - * @return > - * 0 on success, -1 on failure and errno is set. > - */ > -static int > -priv_set_mtu(struct priv *priv, uint16_t mtu) > -{ > - return priv_set_sysfs_ulong(priv, "mtu", mtu); > -} > - > -/** > - * Set device flags. > - * > - * @param priv > - * Pointer to private structure. > - * @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. > - */ > -static int > -priv_set_flags(struct priv *priv, unsigned int keep, unsigned int flags) > -{ > - unsigned long tmp; > - > - if (priv_get_sysfs_ulong(priv, "flags", &tmp) == -1) > - return -1; > - tmp &= keep; > - tmp |= flags; > - return priv_set_sysfs_ulong(priv, "flags", tmp); > -} > - > -/* Device configuration. */ > - > -static int > -rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc, > - unsigned int socket, const struct rte_eth_rxconf *conf, > - struct rte_mempool *mp); > - > -static void > -rxq_cleanup(struct rxq *rxq); > - > -/** > - * Ethernet device configuration. > - * > - * Prepare the driver for a given number of TX and RX queues. > - * Allocate parent RSS queue when several RX queues are requested. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -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 txqs_n = dev->data->nb_tx_queues; > - unsigned int tmp; > - int ret; > - > - 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); > - priv->txqs_n = txqs_n; > - } > - if (rxqs_n == priv->rxqs_n) > - return 0; > - INFO("%p: RX queues number update: %u -> %u", > - (void *)dev, priv->rxqs_n, rxqs_n); > - /* If RSS is enabled, disable it first. */ > - if (priv->rss) { > - unsigned int i; > - > - /* Only if there are no remaining child RX queues. */ > - for (i = 0; (i != priv->rxqs_n); ++i) > - if ((*priv->rxqs)[i] != NULL) > - return EINVAL; > - rxq_cleanup(&priv->rxq_parent); > - priv->rss = 0; > - priv->rxqs_n = 0; > - } > - if (rxqs_n <= 1) { > - /* Nothing else to do. */ > - priv->rxqs_n = rxqs_n; > - return 0; > - } > - /* Allocate a new RSS parent queue if supported by hardware. */ > - if (!priv->hw_rss) { > - ERROR("%p: only a single RX queue can be configured when" > - " hardware doesn't support RSS", > - (void *)dev); > - return EINVAL; > - } > - /* Fail if hardware doesn't support that many RSS queues. */ > - if (rxqs_n >= priv->max_rss_tbl_sz) { > - ERROR("%p: only %u RX queues can be configured for RSS", > - (void *)dev, priv->max_rss_tbl_sz); > - return EINVAL; > - } > - priv->rss = 1; > - tmp = priv->rxqs_n; > - priv->rxqs_n = rxqs_n; > - ret = rxq_setup(dev, &priv->rxq_parent, 0, 0, NULL, NULL); > - if (!ret) > - return 0; > - /* Failure, rollback. */ > - priv->rss = 0; > - priv->rxqs_n = tmp; > - assert(ret > 0); > - return ret; > -} > - > -/** > - * DPDK callback for Ethernet device configuration. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_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; > -} > - > -/* TX queues handling. */ > - > -/** > - * Allocate TX queue elements. > - * > - * @param txq > - * Pointer to TX queue structure. > - * @param elts_n > - * Number of elements to allocate. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -txq_alloc_elts(struct txq *txq, unsigned int elts_n) > -{ > - unsigned int i; > - struct txq_elt (*elts)[elts_n] = > - rte_calloc_socket("TXQ", 1, sizeof(*elts), 0, txq->socket); > - linear_t (*elts_linear)[elts_n] = > - rte_calloc_socket("TXQ", 1, sizeof(*elts_linear), 0, > - txq->socket); > - struct ibv_mr *mr_linear = NULL; > - int ret = 0; > - > - if ((elts == NULL) || (elts_linear == NULL)) { > - ERROR("%p: can't allocate packets array", (void *)txq); > - ret = ENOMEM; > - goto error; > - } > - mr_linear = > - ibv_reg_mr(txq->priv->pd, elts_linear, sizeof(*elts_linear), > - (IBV_ACCESS_LOCAL_WRITE | IBV_ACCESS_REMOTE_WRITE)); > - if (mr_linear == NULL) { > - ERROR("%p: unable to configure MR, ibv_reg_mr() failed", > - (void *)txq); > - ret = EINVAL; > - goto error; > - } > - for (i = 0; (i != elts_n); ++i) { > - struct txq_elt *elt = &(*elts)[i]; > - mlx4_send_wr_t *wr = &elt->wr; > - > - /* Configure WR. */ > - WR_ID(wr->wr_id).id = i; > - WR_ID(wr->wr_id).offset = 0; > - wr->sg_list = &elt->sges[0]; > - wr->opcode = IBV_WR_SEND; > - /* Other fields are updated during TX. */ > - } > - DEBUG("%p: allocated and configured %u WRs", (void *)txq, elts_n); > - txq->elts_n = elts_n; > - txq->elts = elts; > - txq->elts_head = 0; > - txq->elts_tail = 0; > - txq->elts_comp = 0; > - txq->elts_linear = elts_linear; > - txq->mr_linear = mr_linear; > - assert(ret == 0); > - return 0; > -error: > - if (mr_linear != NULL) > - claim_zero(ibv_dereg_mr(mr_linear)); > - > - rte_free(elts_linear); > - rte_free(elts); > - > - DEBUG("%p: failed, freed everything", (void *)txq); > - assert(ret > 0); > - return ret; > -} > - > -/** > - * Free TX queue elements. > - * > - * @param txq > - * Pointer to TX queue structure. > - */ > -static void > -txq_free_elts(struct txq *txq) > -{ > - unsigned int i; > - unsigned int elts_n = txq->elts_n; > - struct txq_elt (*elts)[elts_n] = txq->elts; > - linear_t (*elts_linear)[elts_n] = txq->elts_linear; > - struct ibv_mr *mr_linear = txq->mr_linear; > - > - DEBUG("%p: freeing WRs", (void *)txq); > - txq->elts_n = 0; > - txq->elts = NULL; > - txq->elts_linear = NULL; > - txq->mr_linear = NULL; > - if (mr_linear != NULL) > - claim_zero(ibv_dereg_mr(mr_linear)); > - > - rte_free(elts_linear); > - if (elts == NULL) > - return; > - for (i = 0; (i != elemof(*elts)); ++i) { > - struct txq_elt *elt = &(*elts)[i]; > - > - if (WR_ID(elt->wr.wr_id).offset == 0) > - continue; > - rte_pktmbuf_free((void *)(elt->sges[0].addr - > - WR_ID(elt->wr.wr_id).offset)); > - } > - rte_free(elts); > -} > - > - > -/** > - * Clean up a TX queue. > - * > - * Destroy objects, free allocated memory and reset the structure for reuse. > - * > - * @param txq > - * Pointer to TX queue structure. > - */ > -static void > -txq_cleanup(struct txq *txq) > -{ > - size_t i; > - > - DEBUG("cleaning up %p", (void *)txq); > - txq_free_elts(txq); > - if (txq->qp != NULL) > - claim_zero(ibv_destroy_qp(txq->qp)); > - if (txq->cq != NULL) > - claim_zero(ibv_destroy_cq(txq->cq)); > - for (i = 0; (i != elemof(txq->mp2mr)); ++i) { > - if (txq->mp2mr[i].mp == NULL) > - break; > - assert(txq->mp2mr[i].mr != NULL); > - claim_zero(ibv_dereg_mr(txq->mp2mr[i].mr)); > - } > - memset(txq, 0, sizeof(*txq)); > -} > - > -/** > - * Manage TX completions. > - * > - * When sending a burst, mlx4_tx_burst() posts several WRs. > - * To improve performance, a completion event is only required for the last of > - * them. Doing so discards completion information for other WRs, but this > - * information would not be used anyway. > - * > - * @param txq > - * Pointer to TX queue structure. > - * > - * @return > - * 0 on success, -1 on failure. > - */ > -static int > -txq_complete(struct txq *txq) > -{ > - unsigned int elts_comp = txq->elts_comp; > - unsigned int elts_tail; > - const unsigned int elts_n = txq->elts_n; > - struct ibv_wc wcs[elts_comp]; > - int wcs_n; > - > - if (unlikely(elts_comp == 0)) > - return 0; > -#ifdef DEBUG_SEND > - DEBUG("%p: processing %u work requests completions", > - (void *)txq, elts_comp); > -#endif > - wcs_n = ibv_poll_cq(txq->cq, elts_comp, wcs); > - if (unlikely(wcs_n == 0)) > - return 0; > - if (unlikely(wcs_n < 0)) { > - DEBUG("%p: ibv_poll_cq() failed (wcs_n=%d)", > - (void *)txq, wcs_n); > - return -1; > - } > - elts_comp -= wcs_n; > - assert(elts_comp <= txq->elts_comp); > - /* > - * Work Completion ID contains the associated element index in > - * (*txq->elts)[]. Since WCs are returned in order, we only need to > - * look at the last WC to clear older Work Requests. > - * > - * Assume WC status is successful as nothing can be done about it > - * anyway. > - */ > - elts_tail = WR_ID(wcs[wcs_n - 1].wr_id).id; > - /* Consume the last WC. */ > - if (++elts_tail >= elts_n) > - elts_tail = 0; > - txq->elts_tail = elts_tail; > - txq->elts_comp = elts_comp; > - return 0; > -} > - > -/** > - * Get Memory Region (MR) <-> Memory Pool (MP) association from txq->mp2mr[]. > - * Add MP to txq->mp2mr[] if it's not registered yet. If mp2mr[] is full, > - * remove an entry first. > - * > - * @param txq > - * Pointer to TX queue structure. > - * @param[in] mp > - * Memory Pool for which a Memory Region lkey must be returned. > - * > - * @return > - * mr->lkey on success, (uint32_t)-1 on failure. > - */ > -static uint32_t > -txq_mp2mr(struct txq *txq, struct rte_mempool *mp) > -{ > - unsigned int i; > - struct ibv_mr *mr; > - > - for (i = 0; (i != elemof(txq->mp2mr)); ++i) { > - if (unlikely(txq->mp2mr[i].mp == NULL)) { > - /* Unknown MP, add a new MR for it. */ > - break; > - } > - if (txq->mp2mr[i].mp == mp) { > - assert(txq->mp2mr[i].lkey != (uint32_t)-1); > - assert(txq->mp2mr[i].mr->lkey == txq->mp2mr[i].lkey); > - return txq->mp2mr[i].lkey; > - } > - } > - /* Add a new entry, register MR first. */ > - DEBUG("%p: discovered new memory pool %p", (void *)txq, (void *)mp); > - mr = ibv_reg_mr(txq->priv->pd, > - (void *)mp->elt_va_start, > - (mp->elt_va_end - mp->elt_va_start), > - (IBV_ACCESS_LOCAL_WRITE | IBV_ACCESS_REMOTE_WRITE)); > - if (unlikely(mr == NULL)) { > - DEBUG("%p: unable to configure MR, ibv_reg_mr() failed.", > - (void *)txq); > - return (uint32_t)-1; > - } > - if (unlikely(i == elemof(txq->mp2mr))) { > - /* Table is full, remove oldest entry. */ > - DEBUG("%p: MR <-> MP table full, dropping oldest entry.", > - (void *)txq); > - --i; > - claim_zero(ibv_dereg_mr(txq->mp2mr[i].mr)); > - memmove(&txq->mp2mr[0], &txq->mp2mr[1], > - (sizeof(txq->mp2mr) - sizeof(txq->mp2mr[0]))); > - } > - /* Store the new entry. */ > - txq->mp2mr[i].mp = mp; > - txq->mp2mr[i].mr = mr; > - txq->mp2mr[i].lkey = mr->lkey; > - DEBUG("%p: new MR lkey for MP %p: 0x%08" PRIu32, > - (void *)txq, (void *)mp, txq->mp2mr[i].lkey); > - return txq->mp2mr[i].lkey; > -} > - > -/** > - * Copy scattered mbuf contents to a single linear buffer. > - * > - * @param[out] linear > - * Linear output buffer. > - * @param[in] buf > - * Scattered input buffer. > - * > - * @return > - * Number of bytes copied to the output buffer or 0 if not large enough. > - */ > -static unsigned int > -linearize_mbuf(linear_t *linear, struct rte_mbuf *buf) > -{ > - unsigned int size = 0; > - unsigned int offset; > - > - do { > - unsigned int len = DATA_LEN(buf); > - > - offset = size; > - size += len; > - if (unlikely(size > sizeof(*linear))) > - return 0; > - memcpy(&(*linear)[offset], > - rte_pktmbuf_mtod(buf, uint8_t *), > - len); > - buf = NEXT(buf); > - } while (buf != NULL); > - return size; > -} > - > -/** > - * DPDK callback for TX. > - * > - * @param dpdk_txq > - * Generic pointer to TX queue structure. > - * @param[in] pkts > - * Packets to transmit. > - * @param pkts_n > - * Number of packets in array. > - * > - * @return > - * Number of packets successfully transmitted (<= pkts_n). > - */ > -static uint16_t > -mlx4_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) > -{ > - struct txq *txq = (struct txq *)dpdk_txq; > - mlx4_send_wr_t head; > - mlx4_send_wr_t **wr_next = &head.next; > - mlx4_send_wr_t *bad_wr; > - unsigned int elts_head = txq->elts_head; > - const unsigned int elts_tail = txq->elts_tail; > - const unsigned int elts_n = txq->elts_n; > - unsigned int i; > - unsigned int max; > - int err; > - > - txq_complete(txq); > - max = (elts_n - (elts_head - elts_tail)); > - if (max > elts_n) > - max -= elts_n; > - assert(max >= 1); > - assert(max <= elts_n); > - /* Always leave one free entry in the ring. */ > - --max; > - if (max == 0) > - return 0; > - if (max > pkts_n) > - max = pkts_n; > - for (i = 0; (i != max); ++i) { > - struct rte_mbuf *buf = pkts[i]; > - struct txq_elt *elt = &(*txq->elts)[elts_head]; > - mlx4_send_wr_t *wr = &elt->wr; > - unsigned int segs = NB_SEGS(buf); > -#if (MLX4_PMD_MAX_INLINE > 0) || defined(MLX4_PMD_SOFT_COUNTERS) > - unsigned int sent_size = 0; > -#endif > - unsigned int j; > - int linearize = 0; > - > - /* Clean up old buffer. */ > - if (likely(WR_ID(wr->wr_id).offset != 0)) { > - struct rte_mbuf *tmp = (void *) > - (elt->sges[0].addr - WR_ID(wr->wr_id).offset); > - > - /* Faster than rte_pktmbuf_free(). */ > - do { > - struct rte_mbuf *next = NEXT(tmp); > - > - rte_pktmbuf_free_seg(tmp); > - tmp = next; > - } while (tmp != NULL); > - } > -#ifndef NDEBUG > - /* For assert(). */ > - WR_ID(wr->wr_id).offset = 0; > - for (j = 0; ((int)j < wr->num_sge); ++j) { > - elt->sges[j].addr = 0; > - elt->sges[j].length = 0; > - elt->sges[j].lkey = 0; > - } > - wr->next = NULL; > - wr->num_sge = 0; > -#endif > - /* Sanity checks, most of which are only relevant with > - * debugging enabled. */ > - assert(WR_ID(wr->wr_id).id == elts_head); > - assert(WR_ID(wr->wr_id).offset == 0); > - assert(wr->next == NULL); > - assert(wr->sg_list == &elt->sges[0]); > - assert(wr->num_sge == 0); > - assert(wr->opcode == IBV_WR_SEND); > - /* When there are too many segments, extra segments are > - * linearized in the last SGE. */ > - if (unlikely(segs > elemof(elt->sges))) { > - segs = (elemof(elt->sges) - 1); > - linearize = 1; > - } > - /* Set WR fields. */ > - assert(((uintptr_t)rte_pktmbuf_mtod(buf, char *) - > - (uintptr_t)buf) <= 0xffff); > - WR_ID(wr->wr_id).offset = > - ((uintptr_t)rte_pktmbuf_mtod(buf, char *) - > - (uintptr_t)buf); > - wr->num_sge = segs; > - /* Register segments as SGEs. */ > - for (j = 0; (j != segs); ++j) { > - struct ibv_sge *sge = &elt->sges[j]; > - uint32_t lkey; > - > - /* Retrieve Memory Region key for this memory pool. */ > - lkey = txq_mp2mr(txq, buf->pool); > - if (unlikely(lkey == (uint32_t)-1)) { > - /* MR does not exist. */ > - DEBUG("%p: unable to get MP <-> MR" > - " association", (void *)txq); > - /* Clean up TX element. */ > - WR_ID(elt->wr.wr_id).offset = 0; > -#ifndef NDEBUG > - /* For assert(). */ > - while (j) { > - --j; > - --sge; > - sge->addr = 0; > - sge->length = 0; > - sge->lkey = 0; > - } > - wr->num_sge = 0; > -#endif > - goto stop; > - } > - /* Sanity checks, only relevant with debugging > - * enabled. */ > - assert(sge->addr == 0); > - assert(sge->length == 0); > - assert(sge->lkey == 0); > - /* Update SGE. */ > - sge->addr = (uintptr_t)rte_pktmbuf_mtod(buf, char *); > - if (txq->priv->vf) > - rte_prefetch0((volatile void *)sge->addr); > - sge->length = DATA_LEN(buf); > - sge->lkey = lkey; > -#if (MLX4_PMD_MAX_INLINE > 0) || defined(MLX4_PMD_SOFT_COUNTERS) > - sent_size += sge->length; > -#endif > - buf = NEXT(buf); > - } > - /* If buf is not NULL here and is not going to be linearized, > - * nb_segs is not valid. */ > - assert(j == segs); > - assert((buf == NULL) || (linearize)); > - /* Linearize extra segments. */ > - if (linearize) { > - struct ibv_sge *sge = &elt->sges[segs]; > - linear_t *linear = &(*txq->elts_linear)[elts_head]; > - unsigned int size = linearize_mbuf(linear, buf); > - > - assert(segs == (elemof(elt->sges) - 1)); > - if (size == 0) { > - /* Invalid packet. */ > - DEBUG("%p: packet too large to be linearized.", > - (void *)txq); > - /* Clean up TX element. */ > - WR_ID(elt->wr.wr_id).offset = 0; > -#ifndef NDEBUG > - /* For assert(). */ > - while (j) { > - --j; > - --sge; > - sge->addr = 0; > - sge->length = 0; > - sge->lkey = 0; > - } > - wr->num_sge = 0; > -#endif > - goto stop; > - } > - /* If MLX4_PMD_SGE_WR_N is 1, free mbuf immediately > - * and clear offset from WR ID. */ > - if (elemof(elt->sges) == 1) { > - do { > - struct rte_mbuf *next = NEXT(buf); > - > - rte_pktmbuf_free_seg(buf); > - buf = next; > - } while (buf != NULL); > - WR_ID(wr->wr_id).offset = 0; > - } > - /* Set WR fields and fill SGE with linear buffer. */ > - ++wr->num_sge; > - /* Sanity checks, only relevant with debugging > - * enabled. */ > - assert(sge->addr == 0); > - assert(sge->length == 0); > - assert(sge->lkey == 0); > - /* Update SGE. */ > - sge->addr = (uintptr_t)&(*linear)[0]; > - sge->length = size; > - sge->lkey = txq->mr_linear->lkey; > -#if (MLX4_PMD_MAX_INLINE > 0) || defined(MLX4_PMD_SOFT_COUNTERS) > - sent_size += size; > -#endif > - } > - /* Link WRs together for ibv_post_send(). */ > - *wr_next = wr; > - wr_next = &wr->next; > -#if MLX4_PMD_MAX_INLINE > 0 > - if (sent_size <= txq->max_inline) > - wr->send_flags = IBV_SEND_INLINE; > - else > -#endif > - wr->send_flags = 0; > - if (++elts_head >= elts_n) > - elts_head = 0; > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increment sent bytes counter. */ > - txq->stats.obytes += sent_size; > -#endif > - } > -stop: > - /* Take a shortcut if nothing must be sent. */ > - if (unlikely(i == 0)) > - return 0; > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increment sent packets counter. */ > - txq->stats.opackets += i; > -#endif > - *wr_next = NULL; > - /* The last WR is the only one asking for a completion event. */ > - containerof(wr_next, mlx4_send_wr_t, next)-> > - send_flags |= IBV_SEND_SIGNALED; > - err = mlx4_post_send(txq->qp, head.next, &bad_wr); > - if (unlikely(err)) { > - unsigned int unsent = 0; > - > - /* An error occurred, completion event is lost. Fix counters. */ > - while (bad_wr != NULL) { > - struct txq_elt *elt = > - containerof(bad_wr, struct txq_elt, wr); > - mlx4_send_wr_t *wr = &elt->wr; > - mlx4_send_wr_t *next = wr->next; > -#if defined(MLX4_PMD_SOFT_COUNTERS) || !defined(NDEBUG) > - unsigned int j; > -#endif > - > - assert(wr == bad_wr); > - /* Clean up TX element without freeing it, caller > - * should take care of this. */ > - WR_ID(elt->wr.wr_id).offset = 0; > -#ifdef MLX4_PMD_SOFT_COUNTERS > - for (j = 0; ((int)j < wr->num_sge); ++j) > - txq->stats.obytes -= wr->sg_list[j].length; > -#endif > - ++unsent; > -#ifndef NDEBUG > - /* For assert(). */ > - for (j = 0; ((int)j < wr->num_sge); ++j) { > - elt->sges[j].addr = 0; > - elt->sges[j].length = 0; > - elt->sges[j].lkey = 0; > - } > - wr->next = NULL; > - wr->num_sge = 0; > -#endif > - bad_wr = next; > - } > -#ifdef MLX4_PMD_SOFT_COUNTERS > - txq->stats.opackets -= unsent; > -#endif > - assert(i >= unsent); > - i -= unsent; > - /* "Unsend" remaining packets. */ > - elts_head -= unsent; > - if (elts_head >= elts_n) > - elts_head += elts_n; > - assert(elts_head < elts_n); > - DEBUG("%p: mlx4_post_send() failed, %u unprocessed WRs: %s", > - (void *)txq, unsent, > - ((err <= -1) ? "Internal error" : strerror(err))); > - } else > - ++txq->elts_comp; > - txq->elts_head = elts_head; > - return i; > -} > - > -/** > - * Configure a TX queue. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param txq > - * Pointer to TX queue structure. > - * @param desc > - * Number of descriptors to configure in queue. > - * @param socket > - * NUMA socket on which memory must be allocated. > - * @param[in] conf > - * Thresholds parameters. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -txq_setup(struct rte_eth_dev *dev, struct txq *txq, uint16_t desc, > - unsigned int socket, const struct rte_eth_txconf *conf) > -{ > - struct priv *priv = dev->data->dev_private; > - struct txq tmpl = { > - .priv = priv, > - .socket = socket > - }; > - union { > - struct ibv_qp_init_attr init; > - struct ibv_exp_qp_attr mod; > - } attr; > - int ret = 0; > - > - (void)conf; /* Thresholds configuration (ignored). */ > - if ((desc == 0) || (desc % MLX4_PMD_SGE_WR_N)) { > - ERROR("%p: invalid number of TX descriptors (must be a" > - " multiple of %d)", (void *)dev, desc); > - return EINVAL; > - } > - desc /= MLX4_PMD_SGE_WR_N; > - /* MRs will be registered in mp2mr[] later. */ > - tmpl.cq = ibv_create_cq(priv->ctx, desc, NULL, NULL, 0); > - if (tmpl.cq == NULL) { > - ret = ENOMEM; > - ERROR("%p: CQ creation failure: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - DEBUG("priv->device_attr.max_qp_wr is %d", > - priv->device_attr.max_qp_wr); > - DEBUG("priv->device_attr.max_sge is %d", > - priv->device_attr.max_sge); > - attr.init = (struct ibv_qp_init_attr){ > - /* CQ to be associated with the send queue. */ > - .send_cq = tmpl.cq, > - /* CQ to be associated with the receive queue. */ > - .recv_cq = tmpl.cq, > - .cap = { > - /* Max number of outstanding WRs. */ > - .max_send_wr = ((priv->device_attr.max_qp_wr < desc) ? > - priv->device_attr.max_qp_wr : > - desc), > - /* Max number of scatter/gather elements in a WR. */ > - .max_send_sge = ((priv->device_attr.max_sge < > - MLX4_PMD_SGE_WR_N) ? > - priv->device_attr.max_sge : > - MLX4_PMD_SGE_WR_N), > -#if MLX4_PMD_MAX_INLINE > 0 > - .max_inline_data = MLX4_PMD_MAX_INLINE, > -#endif > - }, > - .qp_type = IBV_QPT_RAW_PACKET, > - /* Do *NOT* enable this, completions events are managed per > - * TX burst. */ > - .sq_sig_all = 0 > - }; > - tmpl.qp = ibv_create_qp(priv->pd, &attr.init); > - if (tmpl.qp == NULL) { > - ret = (errno ? errno : EINVAL); > - ERROR("%p: QP creation failure: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > -#if MLX4_PMD_MAX_INLINE > 0 > - /* ibv_create_qp() updates this value. */ > - tmpl.max_inline = attr.init.cap.max_inline_data; > -#endif > - attr.mod = (struct ibv_exp_qp_attr){ > - /* Move the QP to this state. */ > - .qp_state = IBV_QPS_INIT, > - /* Primary port number. */ > - .port_num = priv->port > - }; > - ret = ibv_exp_modify_qp(tmpl.qp, &attr.mod, > - (IBV_EXP_QP_STATE | IBV_EXP_QP_PORT)); > - if (ret) { > - ERROR("%p: QP state to IBV_QPS_INIT failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - ret = txq_alloc_elts(&tmpl, desc); > - if (ret) { > - ERROR("%p: TXQ allocation failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - attr.mod = (struct ibv_exp_qp_attr){ > - .qp_state = IBV_QPS_RTR > - }; > - ret = ibv_exp_modify_qp(tmpl.qp, &attr.mod, IBV_EXP_QP_STATE); > - if (ret) { > - ERROR("%p: QP state to IBV_QPS_RTR failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - attr.mod.qp_state = IBV_QPS_RTS; > - ret = ibv_exp_modify_qp(tmpl.qp, &attr.mod, IBV_EXP_QP_STATE); > - if (ret) { > - ERROR("%p: QP state to IBV_QPS_RTS failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - /* Clean up txq in case we're reinitializing it. */ > - DEBUG("%p: cleaning-up old txq just in case", (void *)txq); > - txq_cleanup(txq); > - *txq = tmpl; > - DEBUG("%p: txq updated with %p", (void *)txq, (void *)&tmpl); > - assert(ret == 0); > - return 0; > -error: > - txq_cleanup(&tmpl); > - assert(ret > 0); > - return ret; > -} > - > -/** > - * DPDK callback to configure a TX queue. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param idx > - * TX queue index. > - * @param desc > - * Number of descriptors to configure in queue. > - * @param socket > - * NUMA socket on which memory must be allocated. > - * @param[in] conf > - * Thresholds parameters. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_tx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, > - unsigned int socket, const struct rte_eth_txconf *conf) > -{ > - struct priv *priv = dev->data->dev_private; > - struct txq *txq = (*priv->txqs)[idx]; > - int ret; > - > - priv_lock(priv); > - DEBUG("%p: configuring queue %u for %u descriptors", > - (void *)dev, idx, desc); > - if (idx >= priv->txqs_n) { > - ERROR("%p: queue index out of range (%u >= %u)", > - (void *)dev, idx, priv->txqs_n); > - priv_unlock(priv); > - return -EOVERFLOW; > - } > - if (txq != NULL) { > - DEBUG("%p: reusing already allocated queue index %u (%p)", > - (void *)dev, idx, (void *)txq); > - if (priv->started) { > - priv_unlock(priv); > - return -EEXIST; > - } > - (*priv->txqs)[idx] = NULL; > - txq_cleanup(txq); > - } else { > - txq = rte_calloc_socket("TXQ", 1, sizeof(*txq), 0, socket); > - if (txq == NULL) { > - ERROR("%p: unable to allocate queue index %u", > - (void *)dev, idx); > - priv_unlock(priv); > - return -ENOMEM; > - } > - } > - ret = txq_setup(dev, txq, desc, socket, conf); > - if (ret) > - rte_free(txq); > - else { > - txq->stats.idx = idx; > - DEBUG("%p: adding TX queue %p to list", > - (void *)dev, (void *)txq); > - (*priv->txqs)[idx] = txq; > - /* Update send callback. */ > - dev->tx_pkt_burst = mlx4_tx_burst; > - } > - priv_unlock(priv); > - return -ret; > -} > - > -/** > - * DPDK callback to release a TX queue. > - * > - * @param dpdk_txq > - * Generic TX queue pointer. > - */ > -static void > -mlx4_tx_queue_release(void *dpdk_txq) > -{ > - struct txq *txq = (struct txq *)dpdk_txq; > - struct priv *priv; > - unsigned int i; > - > - if (txq == NULL) > - return; > - priv = txq->priv; > - priv_lock(priv); > - for (i = 0; (i != priv->txqs_n); ++i) > - if ((*priv->txqs)[i] == txq) { > - DEBUG("%p: removing TX queue %p from list", > - (void *)priv->dev, (void *)txq); > - (*priv->txqs)[i] = NULL; > - break; > - } > - txq_cleanup(txq); > - rte_free(txq); > - priv_unlock(priv); > -} > - > -/* RX queues handling. */ > - > -/** > - * Allocate RX queue elements with scattered packets support. > - * > - * @param rxq > - * Pointer to RX queue structure. > - * @param elts_n > - * Number of elements to allocate. > - * @param[in] pool > - * If not NULL, fetch buffers from this array instead of allocating them > - * with rte_pktmbuf_alloc(). > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_alloc_elts_sp(struct rxq *rxq, unsigned int elts_n, > - struct rte_mbuf **pool) > -{ > - unsigned int i; > - struct rxq_elt_sp (*elts)[elts_n] = > - rte_calloc_socket("RXQ elements", 1, sizeof(*elts), 0, > - rxq->socket); > - int ret = 0; > - > - if (elts == NULL) { > - ERROR("%p: can't allocate packets array", (void *)rxq); > - ret = ENOMEM; > - goto error; > - } > - /* For each WR (packet). */ > - for (i = 0; (i != elts_n); ++i) { > - unsigned int j; > - struct rxq_elt_sp *elt = &(*elts)[i]; > - struct ibv_recv_wr *wr = &elt->wr; > - struct ibv_sge (*sges)[(elemof(elt->sges))] = &elt->sges; > - > - /* These two arrays must have the same size. */ > - assert(elemof(elt->sges) == elemof(elt->bufs)); > - /* Configure WR. */ > - wr->wr_id = i; > - wr->next = &(*elts)[(i + 1)].wr; > - wr->sg_list = &(*sges)[0]; > - wr->num_sge = elemof(*sges); > - /* For each SGE (segment). */ > - for (j = 0; (j != elemof(elt->bufs)); ++j) { > - struct ibv_sge *sge = &(*sges)[j]; > - struct rte_mbuf *buf; > - > - if (pool != NULL) { > - buf = *(pool++); > - assert(buf != NULL); > - rte_pktmbuf_reset(buf); > - } else > - buf = rte_pktmbuf_alloc(rxq->mp); > - if (buf == NULL) { > - assert(pool == NULL); > - ERROR("%p: empty mbuf pool", (void *)rxq); > - ret = ENOMEM; > - goto error; > - } > - elt->bufs[j] = buf; > - /* Headroom is reserved by rte_pktmbuf_alloc(). */ > - assert(DATA_OFF(buf) == RTE_PKTMBUF_HEADROOM); > - /* Buffer is supposed to be empty. */ > - assert(rte_pktmbuf_data_len(buf) == 0); > - assert(rte_pktmbuf_pkt_len(buf) == 0); > - /* sge->addr must be able to store a pointer. */ > - assert(sizeof(sge->addr) >= sizeof(uintptr_t)); > - if (j == 0) { > - /* The first SGE keeps its headroom. */ > - sge->addr = (uintptr_t)rte_pktmbuf_mtod(buf, > - char *); > - sge->length = (buf->buf_len - > - RTE_PKTMBUF_HEADROOM); > - } else { > - /* Subsequent SGEs lose theirs. */ > - assert(DATA_OFF(buf) == RTE_PKTMBUF_HEADROOM); > - SET_DATA_OFF(buf, 0); > - sge->addr = (uintptr_t)buf->buf_addr; > - sge->length = buf->buf_len; > - } > - sge->lkey = rxq->mr->lkey; > - /* Redundant check for tailroom. */ > - assert(sge->length == rte_pktmbuf_tailroom(buf)); > - } > - } > - /* The last WR pointer must be NULL. */ > - (*elts)[(i - 1)].wr.next = NULL; > - DEBUG("%p: allocated and configured %u WRs (%zu segments)", > - (void *)rxq, elts_n, (elts_n * elemof((*elts)[0].sges))); > - rxq->elts_n = elts_n; > - rxq->elts.sp = elts; > - assert(ret == 0); > - return 0; > -error: > - if (elts != NULL) { > - assert(pool == NULL); > - for (i = 0; (i != elemof(*elts)); ++i) { > - unsigned int j; > - struct rxq_elt_sp *elt = &(*elts)[i]; > - > - for (j = 0; (j != elemof(elt->bufs)); ++j) { > - struct rte_mbuf *buf = elt->bufs[j]; > - > - if (buf != NULL) > - rte_pktmbuf_free_seg(buf); > - } > - } > - rte_free(elts); > - } > - DEBUG("%p: failed, freed everything", (void *)rxq); > - assert(ret > 0); > - return ret; > -} > - > -/** > - * Free RX queue elements with scattered packets support. > - * > - * @param rxq > - * Pointer to RX queue structure. > - */ > -static void > -rxq_free_elts_sp(struct rxq *rxq) > -{ > - unsigned int i; > - unsigned int elts_n = rxq->elts_n; > - struct rxq_elt_sp (*elts)[elts_n] = rxq->elts.sp; > - > - DEBUG("%p: freeing WRs", (void *)rxq); > - rxq->elts_n = 0; > - rxq->elts.sp = NULL; > - if (elts == NULL) > - return; > - for (i = 0; (i != elemof(*elts)); ++i) { > - unsigned int j; > - struct rxq_elt_sp *elt = &(*elts)[i]; > - > - for (j = 0; (j != elemof(elt->bufs)); ++j) { > - struct rte_mbuf *buf = elt->bufs[j]; > - > - if (buf != NULL) > - rte_pktmbuf_free_seg(buf); > - } > - } > - rte_free(elts); > -} > - > -/** > - * Allocate RX queue elements. > - * > - * @param rxq > - * Pointer to RX queue structure. > - * @param elts_n > - * Number of elements to allocate. > - * @param[in] pool > - * If not NULL, fetch buffers from this array instead of allocating them > - * with rte_pktmbuf_alloc(). > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_alloc_elts(struct rxq *rxq, unsigned int elts_n, struct rte_mbuf **pool) > -{ > - unsigned int i; > - struct rxq_elt (*elts)[elts_n] = > - rte_calloc_socket("RXQ elements", 1, sizeof(*elts), 0, > - rxq->socket); > - int ret = 0; > - > - if (elts == NULL) { > - ERROR("%p: can't allocate packets array", (void *)rxq); > - ret = ENOMEM; > - goto error; > - } > - /* For each WR (packet). */ > - for (i = 0; (i != elts_n); ++i) { > - struct rxq_elt *elt = &(*elts)[i]; > - struct ibv_recv_wr *wr = &elt->wr; > - struct ibv_sge *sge = &(*elts)[i].sge; > - struct rte_mbuf *buf; > - > - if (pool != NULL) { > - buf = *(pool++); > - assert(buf != NULL); > - rte_pktmbuf_reset(buf); > - } else > - buf = rte_pktmbuf_alloc(rxq->mp); > - if (buf == NULL) { > - assert(pool == NULL); > - ERROR("%p: empty mbuf pool", (void *)rxq); > - ret = ENOMEM; > - goto error; > - } > - /* Configure WR. Work request ID contains its own index in > - * the elts array and the offset between SGE buffer header and > - * its data. */ > - WR_ID(wr->wr_id).id = i; > - WR_ID(wr->wr_id).offset = > - (((uintptr_t)buf->buf_addr + RTE_PKTMBUF_HEADROOM) - > - (uintptr_t)buf); > - wr->next = &(*elts)[(i + 1)].wr; > - wr->sg_list = sge; > - wr->num_sge = 1; > - /* Headroom is reserved by rte_pktmbuf_alloc(). */ > - assert(DATA_OFF(buf) == RTE_PKTMBUF_HEADROOM); > - /* Buffer is supposed to be empty. */ > - assert(rte_pktmbuf_data_len(buf) == 0); > - assert(rte_pktmbuf_pkt_len(buf) == 0); > - /* sge->addr must be able to store a pointer. */ > - assert(sizeof(sge->addr) >= sizeof(uintptr_t)); > - /* SGE keeps its headroom. */ > - sge->addr = (uintptr_t) > - ((uint8_t *)buf->buf_addr + RTE_PKTMBUF_HEADROOM); > - sge->length = (buf->buf_len - RTE_PKTMBUF_HEADROOM); > - sge->lkey = rxq->mr->lkey; > - /* Redundant check for tailroom. */ > - assert(sge->length == rte_pktmbuf_tailroom(buf)); > - /* Make sure elts index and SGE mbuf pointer can be deduced > - * from WR ID. */ > - if ((WR_ID(wr->wr_id).id != i) || > - ((void *)(sge->addr - WR_ID(wr->wr_id).offset) != buf)) { > - ERROR("%p: cannot store index and offset in WR ID", > - (void *)rxq); > - sge->addr = 0; > - rte_pktmbuf_free(buf); > - ret = EOVERFLOW; > - goto error; > - } > - } > - /* The last WR pointer must be NULL. */ > - (*elts)[(i - 1)].wr.next = NULL; > - DEBUG("%p: allocated and configured %u single-segment WRs", > - (void *)rxq, elts_n); > - rxq->elts_n = elts_n; > - rxq->elts.no_sp = elts; > - assert(ret == 0); > - return 0; > -error: > - if (elts != NULL) { > - assert(pool == NULL); > - for (i = 0; (i != elemof(*elts)); ++i) { > - struct rxq_elt *elt = &(*elts)[i]; > - struct rte_mbuf *buf; > - > - if (elt->sge.addr == 0) > - continue; > - assert(WR_ID(elt->wr.wr_id).id == i); > - buf = (void *) > - (elt->sge.addr - WR_ID(elt->wr.wr_id).offset); > - rte_pktmbuf_free_seg(buf); > - } > - rte_free(elts); > - } > - DEBUG("%p: failed, freed everything", (void *)rxq); > - assert(ret > 0); > - return ret; > -} > - > -/** > - * Free RX queue elements. > - * > - * @param rxq > - * Pointer to RX queue structure. > - */ > -static void > -rxq_free_elts(struct rxq *rxq) > -{ > - unsigned int i; > - unsigned int elts_n = rxq->elts_n; > - struct rxq_elt (*elts)[elts_n] = rxq->elts.no_sp; > - > - DEBUG("%p: freeing WRs", (void *)rxq); > - rxq->elts_n = 0; > - rxq->elts.no_sp = NULL; > - if (elts == NULL) > - return; > - for (i = 0; (i != elemof(*elts)); ++i) { > - struct rxq_elt *elt = &(*elts)[i]; > - struct rte_mbuf *buf; > - > - if (elt->sge.addr == 0) > - continue; > - assert(WR_ID(elt->wr.wr_id).id == i); > - buf = (void *)(elt->sge.addr - WR_ID(elt->wr.wr_id).offset); > - rte_pktmbuf_free_seg(buf); > - } > - rte_free(elts); > -} > - > -/** > - * Unregister a MAC address from a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - * @param mac_index > - * MAC address index. > - */ > -static void > -rxq_mac_addr_del(struct rxq *rxq, unsigned int mac_index) > -{ > -#ifndef NDEBUG > - struct priv *priv = rxq->priv; > - const uint8_t (*mac)[ETHER_ADDR_LEN] = > - (const uint8_t (*)[ETHER_ADDR_LEN]) > - priv->mac[mac_index].addr_bytes; > -#endif > - > - assert(mac_index < elemof(priv->mac)); > - if (!BITFIELD_ISSET(rxq->mac_configured, mac_index)) { > - assert(rxq->mac_flow[mac_index] == NULL); > - return; > - } > - DEBUG("%p: removing MAC address %02x:%02x:%02x:%02x:%02x:%02x" > - " index %u", > - (void *)rxq, > - (*mac)[0], (*mac)[1], (*mac)[2], (*mac)[3], (*mac)[4], (*mac)[5], > - mac_index); > - assert(rxq->mac_flow[mac_index] != NULL); > - claim_zero(ibv_exp_destroy_flow(rxq->mac_flow[mac_index])); > - rxq->mac_flow[mac_index] = NULL; > - BITFIELD_RESET(rxq->mac_configured, mac_index); > -} > - > -/** > - * Unregister all MAC addresses from a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - */ > -static void > -rxq_mac_addrs_del(struct rxq *rxq) > -{ > - struct priv *priv = rxq->priv; > - unsigned int i; > - > - for (i = 0; (i != elemof(priv->mac)); ++i) > - rxq_mac_addr_del(rxq, i); > -} > - > -static int rxq_promiscuous_enable(struct rxq *); > -static void rxq_promiscuous_disable(struct rxq *); > - > -/** > - * Register a MAC address in a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - * @param mac_index > - * MAC address index to register. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_mac_addr_add(struct rxq *rxq, unsigned int mac_index) > -{ > - struct priv *priv = rxq->priv; > - const uint8_t (*mac)[ETHER_ADDR_LEN] = > - (const uint8_t (*)[ETHER_ADDR_LEN]) > - priv->mac[mac_index].addr_bytes; > - unsigned int vlans = 0; > - unsigned int specs = 0; > - unsigned int i, j; > - struct ibv_exp_flow *flow; > - > - assert(mac_index < elemof(priv->mac)); > - if (BITFIELD_ISSET(rxq->mac_configured, mac_index)) > - rxq_mac_addr_del(rxq, mac_index); > - /* Number of configured VLANs. */ > - for (i = 0; (i != elemof(priv->vlan_filter)); ++i) > - if (priv->vlan_filter[i].enabled) > - ++vlans; > - specs = (vlans ? vlans : 1); > - > - /* Allocate flow specification on the stack. */ > - struct ibv_exp_flow_attr data > - [1 + > - (sizeof(struct ibv_exp_flow_spec_eth[specs]) / > - sizeof(struct ibv_exp_flow_attr)) + > - !!(sizeof(struct ibv_exp_flow_spec_eth[specs]) % > - sizeof(struct ibv_exp_flow_attr))]; > - struct ibv_exp_flow_attr *attr = (void *)&data[0]; > - struct ibv_exp_flow_spec_eth *spec = (void *)&data[1]; > - > - /* > - * No padding must be inserted by the compiler between attr and spec. > - * This layout is expected by libibverbs. > - */ > - assert(((uint8_t *)attr + sizeof(*attr)) == (uint8_t *)spec); > - *attr = (struct ibv_exp_flow_attr){ > - .type = IBV_EXP_FLOW_ATTR_NORMAL, > - .num_of_specs = specs, > - .port = priv->port, > - .flags = 0 > - }; > - *spec = (struct ibv_exp_flow_spec_eth){ > - .type = IBV_EXP_FLOW_SPEC_ETH, > - .size = sizeof(*spec), > - .val = { > - .dst_mac = { > - (*mac)[0], (*mac)[1], (*mac)[2], > - (*mac)[3], (*mac)[4], (*mac)[5] > - } > - }, > - .mask = { > - .dst_mac = "\xff\xff\xff\xff\xff\xff", > - .vlan_tag = (vlans ? htons(0xfff) : 0) > - } > - }; > - /* Fill VLAN specifications. */ > - for (i = 0, j = 0; (i != elemof(priv->vlan_filter)); ++i) { > - if (!priv->vlan_filter[i].enabled) > - continue; > - assert(j != vlans); > - if (j) > - spec[j] = spec[0]; > - spec[j].val.vlan_tag = htons(priv->vlan_filter[i].id); > - ++j; > - } > - DEBUG("%p: adding MAC address %02x:%02x:%02x:%02x:%02x:%02x index %u" > - " (%u VLAN(s) configured)", > - (void *)rxq, > - (*mac)[0], (*mac)[1], (*mac)[2], (*mac)[3], (*mac)[4], (*mac)[5], > - mac_index, > - vlans); > - /* Create related flow. */ > - errno = 0; > - flow = ibv_exp_create_flow(rxq->qp, attr); > - if (flow == NULL) { > - int err = errno; > - > - /* Flow creation failure is not fatal when in DMFS A0 mode. > - * Ignore error if promiscuity is already enabled or can be > - * enabled. */ > - if (priv->promisc_ok) > - return 0; > - if ((rxq->promisc_flow != NULL) || > - (rxq_promiscuous_enable(rxq) == 0)) { > - if (rxq->promisc_flow != NULL) > - rxq_promiscuous_disable(rxq); > - WARN("cannot configure normal flow but promiscuous" > - " mode is fine, assuming promiscuous optimization" > - " is enabled" > - " (options mlx4_core log_num_mgm_entry_size=-7)"); > - priv->promisc_ok = 1; > - return 0; > - } > - errno = err; > - /* It's not clear whether errno is always set in this case. */ > - ERROR("%p: flow configuration failed, errno=%d: %s", > - (void *)rxq, errno, > - (errno ? strerror(errno) : "Unknown error")); > - if (errno) > - return errno; > - return EINVAL; > - } > - assert(rxq->mac_flow[mac_index] == NULL); > - rxq->mac_flow[mac_index] = flow; > - BITFIELD_SET(rxq->mac_configured, mac_index); > - return 0; > -} > - > -/** > - * Register all MAC addresses in a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_mac_addrs_add(struct rxq *rxq) > -{ > - struct priv *priv = rxq->priv; > - unsigned int i; > - int ret; > - > - for (i = 0; (i != elemof(priv->mac)); ++i) { > - if (!BITFIELD_ISSET(priv->mac_configured, i)) > - continue; > - ret = rxq_mac_addr_add(rxq, i); > - if (!ret) > - continue; > - /* Failure, rollback. */ > - while (i != 0) > - rxq_mac_addr_del(rxq, --i); > - assert(ret > 0); > - return ret; > - } > - return 0; > -} > - > -/** > - * Unregister a MAC address. > - * > - * In RSS mode, the MAC address is unregistered from the parent queue, > - * otherwise it is unregistered from each queue directly. > - * > - * @param priv > - * Pointer to private structure. > - * @param mac_index > - * MAC address index. > - */ > -static void > -priv_mac_addr_del(struct priv *priv, unsigned int mac_index) > -{ > - unsigned int i; > - > - assert(mac_index < elemof(priv->mac)); > - if (!BITFIELD_ISSET(priv->mac_configured, mac_index)) > - return; > - if (priv->rss) { > - rxq_mac_addr_del(&priv->rxq_parent, mac_index); > - goto end; > - } > - for (i = 0; (i != priv->dev->data->nb_rx_queues); ++i) > - rxq_mac_addr_del((*priv->rxqs)[i], mac_index); > -end: > - BITFIELD_RESET(priv->mac_configured, mac_index); > -} > - > -/** > - * Register a MAC address. > - * > - * In RSS mode, the MAC address is registered in the parent queue, > - * otherwise it is registered in each queue directly. > - * > - * @param priv > - * Pointer to private structure. > - * @param mac_index > - * MAC address index to use. > - * @param mac > - * MAC address to register. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -priv_mac_addr_add(struct priv *priv, unsigned int mac_index, > - const uint8_t (*mac)[ETHER_ADDR_LEN]) > -{ > - unsigned int i; > - int ret; > - > - assert(mac_index < elemof(priv->mac)); > - /* First, make sure this address isn't already configured. */ > - for (i = 0; (i != elemof(priv->mac)); ++i) { > - /* Skip this index, it's going to be reconfigured. */ > - if (i == mac_index) > - continue; > - if (!BITFIELD_ISSET(priv->mac_configured, i)) > - continue; > - if (memcmp(priv->mac[i].addr_bytes, *mac, sizeof(*mac))) > - continue; > - /* Address already configured elsewhere, return with error. */ > - return EADDRINUSE; > - } > - if (BITFIELD_ISSET(priv->mac_configured, mac_index)) > - priv_mac_addr_del(priv, mac_index); > - priv->mac[mac_index] = (struct ether_addr){ > - { > - (*mac)[0], (*mac)[1], (*mac)[2], > - (*mac)[3], (*mac)[4], (*mac)[5] > - } > - }; > - /* If device isn't started, this is all we need to do. */ > - if (!priv->started) { > -#ifndef NDEBUG > - /* Verify that all queues have this index disabled. */ > - for (i = 0; (i != priv->rxqs_n); ++i) { > - if ((*priv->rxqs)[i] == NULL) > - continue; > - assert(!BITFIELD_ISSET > - ((*priv->rxqs)[i]->mac_configured, mac_index)); > - } > -#endif > - goto end; > - } > - if (priv->rss) { > - ret = rxq_mac_addr_add(&priv->rxq_parent, mac_index); > - if (ret) > - return ret; > - goto end; > - } > - for (i = 0; (i != priv->rxqs_n); ++i) { > - if ((*priv->rxqs)[i] == NULL) > - continue; > - ret = rxq_mac_addr_add((*priv->rxqs)[i], mac_index); > - if (!ret) > - continue; > - /* Failure, rollback. */ > - while (i != 0) > - if ((*priv->rxqs)[(--i)] != NULL) > - rxq_mac_addr_del((*priv->rxqs)[i], mac_index); > - return ret; > - } > -end: > - BITFIELD_SET(priv->mac_configured, mac_index); > - return 0; > -} > - > -/** > - * Enable allmulti mode in a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_allmulticast_enable(struct rxq *rxq) > -{ > - struct ibv_exp_flow *flow; > - struct ibv_exp_flow_attr attr = { > - .type = IBV_EXP_FLOW_ATTR_MC_DEFAULT, > - .num_of_specs = 0, > - .port = rxq->priv->port, > - .flags = 0 > - }; > - > - DEBUG("%p: enabling allmulticast mode", (void *)rxq); > - if (rxq->allmulti_flow != NULL) > - return EBUSY; > - errno = 0; > - flow = ibv_exp_create_flow(rxq->qp, &attr); > - if (flow == NULL) { > - /* It's not clear whether errno is always set in this case. */ > - ERROR("%p: flow configuration failed, errno=%d: %s", > - (void *)rxq, errno, > - (errno ? strerror(errno) : "Unknown error")); > - if (errno) > - return errno; > - return EINVAL; > - } > - rxq->allmulti_flow = flow; > - DEBUG("%p: allmulticast mode enabled", (void *)rxq); > - return 0; > -} > - > -/** > - * Disable allmulti mode in a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - */ > -static void > -rxq_allmulticast_disable(struct rxq *rxq) > -{ > - DEBUG("%p: disabling allmulticast mode", (void *)rxq); > - if (rxq->allmulti_flow == NULL) > - return; > - claim_zero(ibv_exp_destroy_flow(rxq->allmulti_flow)); > - rxq->allmulti_flow = NULL; > - DEBUG("%p: allmulticast mode disabled", (void *)rxq); > -} > - > -/** > - * Enable promiscuous mode in a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_promiscuous_enable(struct rxq *rxq) > -{ > - struct ibv_exp_flow *flow; > - struct ibv_exp_flow_attr attr = { > - .type = IBV_EXP_FLOW_ATTR_ALL_DEFAULT, > - .num_of_specs = 0, > - .port = rxq->priv->port, > - .flags = 0 > - }; > - > - if (rxq->priv->vf) > - return 0; > - DEBUG("%p: enabling promiscuous mode", (void *)rxq); > - if (rxq->promisc_flow != NULL) > - return EBUSY; > - errno = 0; > - flow = ibv_exp_create_flow(rxq->qp, &attr); > - if (flow == NULL) { > - /* It's not clear whether errno is always set in this case. */ > - ERROR("%p: flow configuration failed, errno=%d: %s", > - (void *)rxq, errno, > - (errno ? strerror(errno) : "Unknown error")); > - if (errno) > - return errno; > - return EINVAL; > - } > - rxq->promisc_flow = flow; > - DEBUG("%p: promiscuous mode enabled", (void *)rxq); > - return 0; > -} > - > -/** > - * Disable promiscuous mode in a RX queue. > - * > - * @param rxq > - * Pointer to RX queue structure. > - */ > -static void > -rxq_promiscuous_disable(struct rxq *rxq) > -{ > - if (rxq->priv->vf) > - return; > - DEBUG("%p: disabling promiscuous mode", (void *)rxq); > - if (rxq->promisc_flow == NULL) > - return; > - claim_zero(ibv_exp_destroy_flow(rxq->promisc_flow)); > - rxq->promisc_flow = NULL; > - DEBUG("%p: promiscuous mode disabled", (void *)rxq); > -} > - > -/** > - * Clean up a RX queue. > - * > - * Destroy objects, free allocated memory and reset the structure for reuse. > - * > - * @param rxq > - * Pointer to RX queue structure. > - */ > -static void > -rxq_cleanup(struct rxq *rxq) > -{ > - DEBUG("cleaning up %p", (void *)rxq); > - if (rxq->sp) > - rxq_free_elts_sp(rxq); > - else > - rxq_free_elts(rxq); > - if (rxq->qp != NULL) { > - rxq_promiscuous_disable(rxq); > - rxq_allmulticast_disable(rxq); > - rxq_mac_addrs_del(rxq); > - claim_zero(ibv_destroy_qp(rxq->qp)); > - } > - if (rxq->cq != NULL) > - claim_zero(ibv_destroy_cq(rxq->cq)); > - if (rxq->mr != NULL) > - claim_zero(ibv_dereg_mr(rxq->mr)); > - memset(rxq, 0, sizeof(*rxq)); > -} > - > -static uint16_t > -mlx4_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n); > - > -/** > - * DPDK callback for RX with scattered packets support. > - * > - * @param dpdk_rxq > - * Generic pointer to RX queue structure. > - * @param[out] pkts > - * Array to store received packets. > - * @param pkts_n > - * Maximum number of packets in array. > - * > - * @return > - * Number of packets successfully received (<= pkts_n). > - */ > -static uint16_t > -mlx4_rx_burst_sp(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n) > -{ > - struct rxq *rxq = (struct rxq *)dpdk_rxq; > - struct rxq_elt_sp (*elts)[rxq->elts_n] = rxq->elts.sp; > - struct ibv_wc wcs[pkts_n]; > - struct ibv_recv_wr head; > - struct ibv_recv_wr **next = &head.next; > - struct ibv_recv_wr *bad_wr; > - int ret = 0; > - int wcs_n; > - int i; > - > - if (unlikely(!rxq->sp)) > - return mlx4_rx_burst(dpdk_rxq, pkts, pkts_n); > - if (unlikely(elts == NULL)) /* See RTE_DEV_CMD_SET_MTU. */ > - return 0; > - wcs_n = ibv_poll_cq(rxq->cq, pkts_n, wcs); > - if (unlikely(wcs_n == 0)) > - return 0; > - if (unlikely(wcs_n < 0)) { > - DEBUG("rxq=%p, ibv_poll_cq() failed (wc_n=%d)", > - (void *)rxq, wcs_n); > - return 0; > - } > - assert(wcs_n <= (int)pkts_n); > - /* For each work completion. */ > - for (i = 0; (i != wcs_n); ++i) { > - struct ibv_wc *wc = &wcs[i]; > - uint64_t wr_id = wc->wr_id; > - uint32_t len = wc->byte_len; > - struct rxq_elt_sp *elt = &(*elts)[wr_id]; > - struct ibv_recv_wr *wr = &elt->wr; > - struct rte_mbuf *pkt_buf = NULL; /* Buffer returned in pkts. */ > - struct rte_mbuf **pkt_buf_next = &pkt_buf; > - unsigned int seg_headroom = RTE_PKTMBUF_HEADROOM; > - unsigned int j = 0; > - > - /* Sanity checks. */ > - assert(wr_id < rxq->elts_n); > - assert(wr_id == wr->wr_id); > - assert(wr->sg_list == elt->sges); > - assert(wr->num_sge == elemof(elt->sges)); > - /* Link completed WRs together for repost. */ > - *next = wr; > - next = &wr->next; > - if (unlikely(wc->status != IBV_WC_SUCCESS)) { > - /* Whatever, just repost the offending WR. */ > - DEBUG("rxq=%p, wr_id=%" PRIu64 ": bad work completion" > - " status (%d): %s", > - (void *)rxq, wc->wr_id, wc->status, > - ibv_wc_status_str(wc->status)); > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increase dropped packets counter. */ > - ++rxq->stats.idropped; > -#endif > - goto repost; > - } > - /* > - * Replace spent segments with new ones, concatenate and > - * return them as pkt_buf. > - */ > - while (1) { > - struct ibv_sge *sge = &elt->sges[j]; > - struct rte_mbuf *seg = elt->bufs[j]; > - struct rte_mbuf *rep; > - unsigned int seg_tailroom; > - > - /* > - * Fetch initial bytes of packet descriptor into a > - * cacheline while allocating rep. > - */ > - rte_prefetch0(seg); > - rep = __rte_mbuf_raw_alloc(rxq->mp); > - if (unlikely(rep == NULL)) { > - /* > - * Unable to allocate a replacement mbuf, > - * repost WR. > - */ > - DEBUG("rxq=%p, wr_id=%" PRIu64 ":" > - " can't allocate a new mbuf", > - (void *)rxq, wr_id); > - if (pkt_buf != NULL) > - rte_pktmbuf_free(pkt_buf); > - /* Increase out of memory counters. */ > - ++rxq->stats.rx_nombuf; > - ++rxq->priv->dev->data->rx_mbuf_alloc_failed; > - goto repost; > - } > -#ifndef NDEBUG > - /* Poison user-modifiable fields in rep. */ > - NEXT(rep) = (void *)((uintptr_t)-1); > - SET_DATA_OFF(rep, 0xdead); > - DATA_LEN(rep) = 0xd00d; > - PKT_LEN(rep) = 0xdeadd00d; > - NB_SEGS(rep) = 0x2a; > - PORT(rep) = 0x2a; > - rep->ol_flags = -1; > -#endif > - assert(rep->buf_len == seg->buf_len); > - assert(rep->buf_len == rxq->mb_len); > - /* Reconfigure sge to use rep instead of seg. */ > - assert(sge->lkey == rxq->mr->lkey); > - sge->addr = ((uintptr_t)rep->buf_addr + seg_headroom); > - elt->bufs[j] = rep; > - ++j; > - /* Update pkt_buf if it's the first segment, or link > - * seg to the previous one and update pkt_buf_next. */ > - *pkt_buf_next = seg; > - pkt_buf_next = &NEXT(seg); > - /* Update seg information. */ > - seg_tailroom = (seg->buf_len - seg_headroom); > - assert(sge->length == seg_tailroom); > - SET_DATA_OFF(seg, seg_headroom); > - if (likely(len <= seg_tailroom)) { > - /* Last segment. */ > - DATA_LEN(seg) = len; > - PKT_LEN(seg) = len; > - /* Sanity check. */ > - assert(rte_pktmbuf_headroom(seg) == > - seg_headroom); > - assert(rte_pktmbuf_tailroom(seg) == > - (seg_tailroom - len)); > - break; > - } > - DATA_LEN(seg) = seg_tailroom; > - PKT_LEN(seg) = seg_tailroom; > - /* Sanity check. */ > - assert(rte_pktmbuf_headroom(seg) == seg_headroom); > - assert(rte_pktmbuf_tailroom(seg) == 0); > - /* Fix len and clear headroom for next segments. */ > - len -= seg_tailroom; > - seg_headroom = 0; > - } > - /* Update head and tail segments. */ > - *pkt_buf_next = NULL; > - assert(pkt_buf != NULL); > - assert(j != 0); > - NB_SEGS(pkt_buf) = j; > - PORT(pkt_buf) = rxq->port_id; > - PKT_LEN(pkt_buf) = wc->byte_len; > - pkt_buf->ol_flags = 0; > - > - /* Return packet. */ > - *(pkts++) = pkt_buf; > - ++ret; > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increase bytes counter. */ > - rxq->stats.ibytes += wc->byte_len; > -#endif > -repost: > - continue; > - } > - *next = NULL; > - /* Repost WRs. */ > -#ifdef DEBUG_RECV > - DEBUG("%p: reposting %d WRs starting from %" PRIu64 " (%p)", > - (void *)rxq, wcs_n, wcs[0].wr_id, (void *)head.next); > -#endif > - i = ibv_post_recv(rxq->qp, head.next, &bad_wr); > - if (unlikely(i)) { > - /* Inability to repost WRs is fatal. */ > - DEBUG("%p: ibv_post_recv(): failed for WR %p: %s", > - (void *)rxq->priv, > - (void *)bad_wr, > - strerror(i)); > - abort(); > - } > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increase packets counter. */ > - rxq->stats.ipackets += ret; > -#endif > - return ret; > -} > - > -/** > - * DPDK callback for RX. > - * > - * The following function is the same as mlx4_rx_burst_sp(), except it doesn't > - * manage scattered packets. Improves performance when MRU is lower than the > - * size of the first segment. > - * > - * @param dpdk_rxq > - * Generic pointer to RX queue structure. > - * @param[out] pkts > - * Array to store received packets. > - * @param pkts_n > - * Maximum number of packets in array. > - * > - * @return > - * Number of packets successfully received (<= pkts_n). > - */ > -static uint16_t > -mlx4_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n) > -{ > - struct rxq *rxq = (struct rxq *)dpdk_rxq; > - struct rxq_elt (*elts)[rxq->elts_n] = rxq->elts.no_sp; > - struct ibv_wc wcs[pkts_n]; > - struct ibv_recv_wr head; > - struct ibv_recv_wr **next = &head.next; > - struct ibv_recv_wr *bad_wr; > - int ret = 0; > - int wcs_n; > - int i; > - > - if (unlikely(rxq->sp)) > - return mlx4_rx_burst_sp(dpdk_rxq, pkts, pkts_n); > - wcs_n = ibv_poll_cq(rxq->cq, pkts_n, wcs); > - if (unlikely(wcs_n == 0)) > - return 0; > - if (unlikely(wcs_n < 0)) { > - DEBUG("rxq=%p, ibv_poll_cq() failed (wc_n=%d)", > - (void *)rxq, wcs_n); > - return 0; > - } > - assert(wcs_n <= (int)pkts_n); > - /* For each work completion. */ > - for (i = 0; (i != wcs_n); ++i) { > - struct ibv_wc *wc = &wcs[i]; > - uint64_t wr_id = wc->wr_id; > - uint32_t len = wc->byte_len; > - struct rxq_elt *elt = &(*elts)[WR_ID(wr_id).id]; > - struct ibv_recv_wr *wr = &elt->wr; > - struct rte_mbuf *seg = > - (void *)(elt->sge.addr - WR_ID(wr_id).offset); > - struct rte_mbuf *rep; > - > - /* Sanity checks. */ > - assert(WR_ID(wr_id).id < rxq->elts_n); > - assert(wr_id == wr->wr_id); > - assert(wr->sg_list == &elt->sge); > - assert(wr->num_sge == 1); > - /* Link completed WRs together for repost. */ > - *next = wr; > - next = &wr->next; > - if (unlikely(wc->status != IBV_WC_SUCCESS)) { > - /* Whatever, just repost the offending WR. */ > - DEBUG("rxq=%p, wr_id=%" PRIu32 ": bad work completion" > - " status (%d): %s", > - (void *)rxq, WR_ID(wr_id).id, wc->status, > - ibv_wc_status_str(wc->status)); > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increase dropped packets counter. */ > - ++rxq->stats.idropped; > -#endif > - goto repost; > - } > - /* > - * Fetch initial bytes of packet descriptor into a > - * cacheline while allocating rep. > - */ > - rte_prefetch0(seg); > - rep = __rte_mbuf_raw_alloc(rxq->mp); > - if (unlikely(rep == NULL)) { > - /* > - * Unable to allocate a replacement mbuf, > - * repost WR. > - */ > - DEBUG("rxq=%p, wr_id=%" PRIu32 ":" > - " can't allocate a new mbuf", > - (void *)rxq, WR_ID(wr_id).id); > - /* Increase out of memory counters. */ > - ++rxq->stats.rx_nombuf; > - ++rxq->priv->dev->data->rx_mbuf_alloc_failed; > - goto repost; > - } > - > - /* Reconfigure sge to use rep instead of seg. */ > - elt->sge.addr = (uintptr_t)rep->buf_addr + RTE_PKTMBUF_HEADROOM; > - assert(elt->sge.lkey == rxq->mr->lkey); > - WR_ID(wr->wr_id).offset = > - (((uintptr_t)rep->buf_addr + RTE_PKTMBUF_HEADROOM) - > - (uintptr_t)rep); > - assert(WR_ID(wr->wr_id).id == WR_ID(wr_id).id); > - > - /* Update seg information. */ > - SET_DATA_OFF(seg, RTE_PKTMBUF_HEADROOM); > - NB_SEGS(seg) = 1; > - PORT(seg) = rxq->port_id; > - NEXT(seg) = NULL; > - PKT_LEN(seg) = len; > - DATA_LEN(seg) = len; > - seg->ol_flags = 0; > - > - /* Return packet. */ > - *(pkts++) = seg; > - ++ret; > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increase bytes counter. */ > - rxq->stats.ibytes += wc->byte_len; > -#endif > -repost: > - continue; > - } > - *next = NULL; > - /* Repost WRs. */ > -#ifdef DEBUG_RECV > - DEBUG("%p: reposting %d WRs starting from %" PRIu32 " (%p)", > - (void *)rxq, wcs_n, WR_ID(wcs[0].wr_id).id, (void *)head.next); > -#endif > - i = ibv_post_recv(rxq->qp, head.next, &bad_wr); > - if (unlikely(i)) { > - /* Inability to repost WRs is fatal. */ > - DEBUG("%p: ibv_post_recv(): failed for WR %p: %s", > - (void *)rxq->priv, > - (void *)bad_wr, > - strerror(i)); > - abort(); > - } > -#ifdef MLX4_PMD_SOFT_COUNTERS > - /* Increase packets counter. */ > - rxq->stats.ipackets += ret; > -#endif > - return ret; > -} > - > -#ifdef INLINE_RECV > - > -/** > - * Allocate a Queue Pair in case inline receive is supported. > - * > - * @param priv > - * Pointer to private structure. > - * @param cq > - * Completion queue to associate with QP. > - * @param desc > - * Number of descriptors in QP (hint only). > - * > - * @return > - * QP pointer or NULL in case of error. > - */ > -static struct ibv_qp * > -rxq_setup_qp(struct priv *priv, struct ibv_cq *cq, uint16_t desc) > -{ > - struct ibv_exp_qp_init_attr attr = { > - /* CQ to be associated with the send queue. */ > - .send_cq = cq, > - /* CQ to be associated with the receive queue. */ > - .recv_cq = cq, > - .max_inl_recv = priv->inl_recv_size, > - .cap = { > - /* Max number of outstanding WRs. */ > - .max_recv_wr = ((priv->device_attr.max_qp_wr < desc) ? > - priv->device_attr.max_qp_wr : > - desc), > - /* Max number of scatter/gather elements in a WR. */ > - .max_recv_sge = ((priv->device_attr.max_sge < > - MLX4_PMD_SGE_WR_N) ? > - priv->device_attr.max_sge : > - MLX4_PMD_SGE_WR_N), > - }, > - .qp_type = IBV_QPT_RAW_PACKET, > - .pd = priv->pd > - }; > - > - attr.comp_mask = IBV_EXP_QP_INIT_ATTR_PD; > - attr.comp_mask |= IBV_EXP_QP_INIT_ATTR_INL_RECV; > - > - return ibv_exp_create_qp(priv->ctx, &attr); > -} > - > -#else /* INLINE_RECV */ > - > -/** > - * Allocate a Queue Pair. > - * > - * @param priv > - * Pointer to private structure. > - * @param cq > - * Completion queue to associate with QP. > - * @param desc > - * Number of descriptors in QP (hint only). > - * > - * @return > - * QP pointer or NULL in case of error. > - */ > -static struct ibv_qp * > -rxq_setup_qp(struct priv *priv, struct ibv_cq *cq, uint16_t desc) > -{ > - struct ibv_qp_init_attr attr = { > - /* CQ to be associated with the send queue. */ > - .send_cq = cq, > - /* CQ to be associated with the receive queue. */ > - .recv_cq = cq, > - .cap = { > - /* Max number of outstanding WRs. */ > - .max_recv_wr = ((priv->device_attr.max_qp_wr < desc) ? > - priv->device_attr.max_qp_wr : > - desc), > - /* Max number of scatter/gather elements in a WR. */ > - .max_recv_sge = ((priv->device_attr.max_sge < > - MLX4_PMD_SGE_WR_N) ? > - priv->device_attr.max_sge : > - MLX4_PMD_SGE_WR_N), > - }, > - .qp_type = IBV_QPT_RAW_PACKET > - }; > - > - return ibv_create_qp(priv->pd, &attr); > -} > - > -#endif /* INLINE_RECV */ > - > -#ifdef RSS_SUPPORT > - > -/** > - * Allocate a RSS Queue Pair. > - * > - * @param priv > - * Pointer to private structure. > - * @param cq > - * Completion queue to associate with QP. > - * @param desc > - * Number of descriptors in QP (hint only). > - * @param parent > - * If nonzero, create a parent QP, otherwise a child. > - * > - * @return > - * QP pointer or NULL in case of error. > - */ > -static struct ibv_qp * > -rxq_setup_qp_rss(struct priv *priv, struct ibv_cq *cq, uint16_t desc, > - int parent) > -{ > - struct ibv_exp_qp_init_attr attr = { > - /* CQ to be associated with the send queue. */ > - .send_cq = cq, > - /* CQ to be associated with the receive queue. */ > - .recv_cq = cq, > -#ifdef INLINE_RECV > - .max_inl_recv = priv->inl_recv_size, > -#endif > - .cap = { > - /* Max number of outstanding WRs. */ > - .max_recv_wr = ((priv->device_attr.max_qp_wr < desc) ? > - priv->device_attr.max_qp_wr : > - desc), > - /* Max number of scatter/gather elements in a WR. */ > - .max_recv_sge = ((priv->device_attr.max_sge < > - MLX4_PMD_SGE_WR_N) ? > - priv->device_attr.max_sge : > - MLX4_PMD_SGE_WR_N), > - }, > - .qp_type = IBV_QPT_RAW_PACKET, > - .comp_mask = (IBV_EXP_QP_INIT_ATTR_PD | > - IBV_EXP_QP_INIT_ATTR_QPG), > - .pd = priv->pd > - }; > - > -#ifdef INLINE_RECV > - attr.comp_mask |= IBV_EXP_QP_INIT_ATTR_INL_RECV; > -#endif > - if (parent) { > - attr.qpg.qpg_type = IBV_EXP_QPG_PARENT; > - /* TSS isn't necessary. */ > - attr.qpg.parent_attrib.tss_child_count = 0; > - attr.qpg.parent_attrib.rss_child_count = priv->rxqs_n; > - DEBUG("initializing parent RSS queue"); > - } else { > - attr.qpg.qpg_type = IBV_EXP_QPG_CHILD_RX; > - attr.qpg.qpg_parent = priv->rxq_parent.qp; > - DEBUG("initializing child RSS queue"); > - } > - return ibv_exp_create_qp(priv->ctx, &attr); > -} > - > -#endif /* RSS_SUPPORT */ > - > -/** > - * Reconfigure a RX queue with new parameters. > - * > - * rxq_rehash() does not allocate mbufs, which, if not done from the right > - * thread (such as a control thread), may corrupt the pool. > - * In case of failure, the queue is left untouched. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param rxq > - * RX queue pointer. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_rehash(struct rte_eth_dev *dev, struct rxq *rxq) > -{ > - struct priv *priv = rxq->priv; > - struct rxq tmpl = *rxq; > - unsigned int mbuf_n; > - unsigned int desc_n; > - struct rte_mbuf **pool; > - unsigned int i, k; > - struct ibv_exp_qp_attr mod; > - struct ibv_recv_wr *bad_wr; > - int err; > - int parent = (rxq == &priv->rxq_parent); > - > - if (parent) { > - ERROR("%p: cannot rehash parent queue %p", > - (void *)dev, (void *)rxq); > - return EINVAL; > - } > - DEBUG("%p: rehashing queue %p", (void *)dev, (void *)rxq); > - /* Number of descriptors and mbufs currently allocated. */ > - desc_n = (tmpl.elts_n * (tmpl.sp ? MLX4_PMD_SGE_WR_N : 1)); > - mbuf_n = desc_n; > - /* Enable scattered packets support for this queue if necessary. */ > - if ((dev->data->dev_conf.rxmode.jumbo_frame) && > - (dev->data->dev_conf.rxmode.max_rx_pkt_len > > - (tmpl.mb_len - RTE_PKTMBUF_HEADROOM))) { > - tmpl.sp = 1; > - desc_n /= MLX4_PMD_SGE_WR_N; > - } else > - tmpl.sp = 0; > - DEBUG("%p: %s scattered packets support (%u WRs)", > - (void *)dev, (tmpl.sp ? "enabling" : "disabling"), desc_n); > - /* If scatter mode is the same as before, nothing to do. */ > - if (tmpl.sp == rxq->sp) { > - DEBUG("%p: nothing to do", (void *)dev); > - return 0; > - } > - /* Remove attached flows if RSS is disabled (no parent queue). */ > - if (!priv->rss) { > - rxq_allmulticast_disable(&tmpl); > - rxq_promiscuous_disable(&tmpl); > - rxq_mac_addrs_del(&tmpl); > - /* Update original queue in case of failure. */ > - rxq->allmulti_flow = tmpl.allmulti_flow; > - rxq->promisc_flow = tmpl.promisc_flow; > - memcpy(rxq->mac_configured, tmpl.mac_configured, > - sizeof(rxq->mac_configured)); > - memcpy(rxq->mac_flow, tmpl.mac_flow, sizeof(rxq->mac_flow)); > - } > - /* From now on, any failure will render the queue unusable. > - * Reinitialize QP. */ > - mod = (struct ibv_exp_qp_attr){ .qp_state = IBV_QPS_RESET }; > - err = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); > - if (err) { > - ERROR("%p: cannot reset QP: %s", (void *)dev, strerror(err)); > - assert(err > 0); > - return err; > - } > - err = ibv_resize_cq(tmpl.cq, desc_n); > - if (err) { > - ERROR("%p: cannot resize CQ: %s", (void *)dev, strerror(err)); > - assert(err > 0); > - return err; > - } > - mod = (struct ibv_exp_qp_attr){ > - /* Move the QP to this state. */ > - .qp_state = IBV_QPS_INIT, > - /* Primary port number. */ > - .port_num = priv->port > - }; > - err = ibv_exp_modify_qp(tmpl.qp, &mod, > - (IBV_EXP_QP_STATE | > -#ifdef RSS_SUPPORT > - (parent ? IBV_EXP_QP_GROUP_RSS : 0) | > -#endif /* RSS_SUPPORT */ > - IBV_EXP_QP_PORT)); > - if (err) { > - ERROR("%p: QP state to IBV_QPS_INIT failed: %s", > - (void *)dev, strerror(err)); > - assert(err > 0); > - return err; > - }; > - /* Reconfigure flows. Do not care for errors. */ > - if (!priv->rss) { > - rxq_mac_addrs_add(&tmpl); > - if (priv->promisc) > - rxq_promiscuous_enable(&tmpl); > - if (priv->allmulti) > - rxq_allmulticast_enable(&tmpl); > - /* Update original queue in case of failure. */ > - rxq->allmulti_flow = tmpl.allmulti_flow; > - rxq->promisc_flow = tmpl.promisc_flow; > - memcpy(rxq->mac_configured, tmpl.mac_configured, > - sizeof(rxq->mac_configured)); > - memcpy(rxq->mac_flow, tmpl.mac_flow, sizeof(rxq->mac_flow)); > - } > - /* Allocate pool. */ > - pool = rte_malloc(__func__, (mbuf_n * sizeof(*pool)), 0); > - if (pool == NULL) { > - ERROR("%p: cannot allocate memory", (void *)dev); > - return ENOBUFS; > - } > - /* Snatch mbufs from original queue. */ > - k = 0; > - if (rxq->sp) { > - struct rxq_elt_sp (*elts)[rxq->elts_n] = rxq->elts.sp; > - > - for (i = 0; (i != elemof(*elts)); ++i) { > - struct rxq_elt_sp *elt = &(*elts)[i]; > - unsigned int j; > - > - for (j = 0; (j != elemof(elt->bufs)); ++j) { > - assert(elt->bufs[j] != NULL); > - pool[k++] = elt->bufs[j]; > - } > - } > - } else { > - struct rxq_elt (*elts)[rxq->elts_n] = rxq->elts.no_sp; > - > - for (i = 0; (i != elemof(*elts)); ++i) { > - struct rxq_elt *elt = &(*elts)[i]; > - struct rte_mbuf *buf = (void *) > - (elt->sge.addr - WR_ID(elt->wr.wr_id).offset); > - > - assert(WR_ID(elt->wr.wr_id).id == i); > - pool[k++] = buf; > - } > - } > - assert(k == mbuf_n); > - tmpl.elts_n = 0; > - tmpl.elts.sp = NULL; > - assert((void *)&tmpl.elts.sp == (void *)&tmpl.elts.no_sp); > - err = ((tmpl.sp) ? > - rxq_alloc_elts_sp(&tmpl, desc_n, pool) : > - rxq_alloc_elts(&tmpl, desc_n, pool)); > - if (err) { > - ERROR("%p: cannot reallocate WRs, aborting", (void *)dev); > - rte_free(pool); > - assert(err > 0); > - return err; > - } > - assert(tmpl.elts_n == desc_n); > - assert(tmpl.elts.sp != NULL); > - rte_free(pool); > - /* Clean up original data. */ > - rxq->elts_n = 0; > - rte_free(rxq->elts.sp); > - rxq->elts.sp = NULL; > - /* Post WRs. */ > - err = ibv_post_recv(tmpl.qp, > - (tmpl.sp ? > - &(*tmpl.elts.sp)[0].wr : > - &(*tmpl.elts.no_sp)[0].wr), > - &bad_wr); > - if (err) { > - ERROR("%p: ibv_post_recv() failed for WR %p: %s", > - (void *)dev, > - (void *)bad_wr, > - strerror(err)); > - goto skip_rtr; > - } > - mod = (struct ibv_exp_qp_attr){ > - .qp_state = IBV_QPS_RTR > - }; > - err = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); > - if (err) > - ERROR("%p: QP state to IBV_QPS_RTR failed: %s", > - (void *)dev, strerror(err)); > -skip_rtr: > - *rxq = tmpl; > - assert(err >= 0); > - return err; > -} > - > -/** > - * Configure a RX queue. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param rxq > - * Pointer to RX queue structure. > - * @param desc > - * Number of descriptors to configure in queue. > - * @param socket > - * NUMA socket on which memory must be allocated. > - * @param[in] conf > - * Thresholds parameters. > - * @param mp > - * Memory pool for buffer allocations. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -rxq_setup(struct rte_eth_dev *dev, struct rxq *rxq, uint16_t desc, > - unsigned int socket, const struct rte_eth_rxconf *conf, > - struct rte_mempool *mp) > -{ > - struct priv *priv = dev->data->dev_private; > - struct rxq tmpl = { > - .priv = priv, > - .mp = mp, > - .socket = socket > - }; > - struct ibv_exp_qp_attr mod; > - struct ibv_recv_wr *bad_wr; > - struct rte_mbuf *buf; > - int ret = 0; > - int parent = (rxq == &priv->rxq_parent); > - > - (void)conf; /* Thresholds configuration (ignored). */ > - /* > - * If this is a parent queue, hardware must support RSS and > - * RSS must be enabled. > - */ > - assert((!parent) || ((priv->hw_rss) && (priv->rss))); > - if (parent) { > - /* Even if unused, ibv_create_cq() requires at least one > - * descriptor. */ > - desc = 1; > - goto skip_mr; > - } > - if ((desc == 0) || (desc % MLX4_PMD_SGE_WR_N)) { > - ERROR("%p: invalid number of RX descriptors (must be a" > - " multiple of %d)", (void *)dev, desc); > - return EINVAL; > - } > - /* Get mbuf length. */ > - buf = rte_pktmbuf_alloc(mp); > - if (buf == NULL) { > - ERROR("%p: unable to allocate mbuf", (void *)dev); > - return ENOMEM; > - } > - tmpl.mb_len = buf->buf_len; > - assert((rte_pktmbuf_headroom(buf) + > - rte_pktmbuf_tailroom(buf)) == tmpl.mb_len); > - assert(rte_pktmbuf_headroom(buf) == RTE_PKTMBUF_HEADROOM); > - rte_pktmbuf_free(buf); > - /* Enable scattered packets support for this queue if necessary. */ > - if ((dev->data->dev_conf.rxmode.jumbo_frame) && > - (dev->data->dev_conf.rxmode.max_rx_pkt_len > > - (tmpl.mb_len - RTE_PKTMBUF_HEADROOM))) { > - tmpl.sp = 1; > - desc /= MLX4_PMD_SGE_WR_N; > - } > - DEBUG("%p: %s scattered packets support (%u WRs)", > - (void *)dev, (tmpl.sp ? "enabling" : "disabling"), desc); > - /* Use the entire RX mempool as the memory region. */ > - tmpl.mr = ibv_reg_mr(priv->pd, > - (void *)mp->elt_va_start, > - (mp->elt_va_end - mp->elt_va_start), > - (IBV_ACCESS_LOCAL_WRITE | > - IBV_ACCESS_REMOTE_WRITE)); > - if (tmpl.mr == NULL) { > - ret = EINVAL; > - ERROR("%p: MR creation failure: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > -skip_mr: > - tmpl.cq = ibv_create_cq(priv->ctx, desc, NULL, NULL, 0); > - if (tmpl.cq == NULL) { > - ret = ENOMEM; > - ERROR("%p: CQ creation failure: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - DEBUG("priv->device_attr.max_qp_wr is %d", > - priv->device_attr.max_qp_wr); > - DEBUG("priv->device_attr.max_sge is %d", > - priv->device_attr.max_sge); > -#ifdef RSS_SUPPORT > - if (priv->rss) > - tmpl.qp = rxq_setup_qp_rss(priv, tmpl.cq, desc, parent); > - else > -#endif /* RSS_SUPPORT */ > - tmpl.qp = rxq_setup_qp(priv, tmpl.cq, desc); > - if (tmpl.qp == NULL) { > - ret = (errno ? errno : EINVAL); > - ERROR("%p: QP creation failure: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - mod = (struct ibv_exp_qp_attr){ > - /* Move the QP to this state. */ > - .qp_state = IBV_QPS_INIT, > - /* Primary port number. */ > - .port_num = priv->port > - }; > - ret = ibv_exp_modify_qp(tmpl.qp, &mod, > - (IBV_EXP_QP_STATE | > -#ifdef RSS_SUPPORT > - (parent ? IBV_EXP_QP_GROUP_RSS : 0) | > -#endif /* RSS_SUPPORT */ > - IBV_EXP_QP_PORT)); > - if (ret) { > - ERROR("%p: QP state to IBV_QPS_INIT failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - if ((parent) || (!priv->rss)) { > - /* Configure MAC and broadcast addresses. */ > - ret = rxq_mac_addrs_add(&tmpl); > - if (ret) { > - ERROR("%p: QP flow attachment failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - } > - /* Allocate descriptors for RX queues, except for the RSS parent. */ > - if (parent) > - goto skip_alloc; > - if (tmpl.sp) > - ret = rxq_alloc_elts_sp(&tmpl, desc, NULL); > - else > - ret = rxq_alloc_elts(&tmpl, desc, NULL); > - if (ret) { > - ERROR("%p: RXQ allocation failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - ret = ibv_post_recv(tmpl.qp, > - (tmpl.sp ? > - &(*tmpl.elts.sp)[0].wr : > - &(*tmpl.elts.no_sp)[0].wr), > - &bad_wr); > - if (ret) { > - ERROR("%p: ibv_post_recv() failed for WR %p: %s", > - (void *)dev, > - (void *)bad_wr, > - strerror(ret)); > - goto error; > - } > -skip_alloc: > - mod = (struct ibv_exp_qp_attr){ > - .qp_state = IBV_QPS_RTR > - }; > - ret = ibv_exp_modify_qp(tmpl.qp, &mod, IBV_EXP_QP_STATE); > - if (ret) { > - ERROR("%p: QP state to IBV_QPS_RTR failed: %s", > - (void *)dev, strerror(ret)); > - goto error; > - } > - /* Save port ID. */ > - tmpl.port_id = dev->data->port_id; > - DEBUG("%p: RTE port ID: %u", (void *)rxq, tmpl.port_id); > - /* Clean up rxq in case we're reinitializing it. */ > - DEBUG("%p: cleaning-up old rxq just in case", (void *)rxq); > - rxq_cleanup(rxq); > - *rxq = tmpl; > - DEBUG("%p: rxq updated with %p", (void *)rxq, (void *)&tmpl); > - assert(ret == 0); > - return 0; > -error: > - rxq_cleanup(&tmpl); > - assert(ret > 0); > - return ret; > -} > - > -/** > - * DPDK callback to configure a RX queue. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param idx > - * RX queue index. > - * @param desc > - * Number of descriptors to configure in queue. > - * @param socket > - * NUMA socket on which memory must be allocated. > - * @param[in] conf > - * Thresholds parameters. > - * @param mp > - * Memory pool for buffer allocations. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_rx_queue_setup(struct rte_eth_dev *dev, uint16_t idx, uint16_t desc, > - unsigned int socket, const struct rte_eth_rxconf *conf, > - struct rte_mempool *mp) > -{ > - struct priv *priv = dev->data->dev_private; > - struct rxq *rxq = (*priv->rxqs)[idx]; > - int ret; > - > - priv_lock(priv); > - DEBUG("%p: configuring queue %u for %u descriptors", > - (void *)dev, idx, desc); > - if (idx >= priv->rxqs_n) { > - ERROR("%p: queue index out of range (%u >= %u)", > - (void *)dev, idx, priv->rxqs_n); > - priv_unlock(priv); > - return -EOVERFLOW; > - } > - if (rxq != NULL) { > - DEBUG("%p: reusing already allocated queue index %u (%p)", > - (void *)dev, idx, (void *)rxq); > - if (priv->started) { > - priv_unlock(priv); > - return -EEXIST; > - } > - (*priv->rxqs)[idx] = NULL; > - rxq_cleanup(rxq); > - } else { > - rxq = rte_calloc_socket("RXQ", 1, sizeof(*rxq), 0, socket); > - if (rxq == NULL) { > - ERROR("%p: unable to allocate queue index %u", > - (void *)dev, idx); > - priv_unlock(priv); > - return -ENOMEM; > - } > - } > - ret = rxq_setup(dev, rxq, desc, socket, conf, mp); > - if (ret) > - rte_free(rxq); > - else { > - rxq->stats.idx = idx; > - DEBUG("%p: adding RX queue %p to list", > - (void *)dev, (void *)rxq); > - (*priv->rxqs)[idx] = rxq; > - /* Update receive callback. */ > - if (rxq->sp) > - dev->rx_pkt_burst = mlx4_rx_burst_sp; > - else > - dev->rx_pkt_burst = mlx4_rx_burst; > - } > - priv_unlock(priv); > - return -ret; > -} > - > -/** > - * DPDK callback to release a RX queue. > - * > - * @param dpdk_rxq > - * Generic RX queue pointer. > - */ > -static void > -mlx4_rx_queue_release(void *dpdk_rxq) > -{ > - struct rxq *rxq = (struct rxq *)dpdk_rxq; > - struct priv *priv; > - unsigned int i; > - > - if (rxq == NULL) > - return; > - priv = rxq->priv; > - priv_lock(priv); > - assert(rxq != &priv->rxq_parent); > - for (i = 0; (i != priv->rxqs_n); ++i) > - if ((*priv->rxqs)[i] == rxq) { > - DEBUG("%p: removing RX queue %p from list", > - (void *)priv->dev, (void *)rxq); > - (*priv->rxqs)[i] = NULL; > - break; > - } > - rxq_cleanup(rxq); > - rte_free(rxq); > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to start the device. > - * > - * Simulate device start by attaching all configured flows. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_dev_start(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i = 0; > - unsigned int r; > - struct rxq *rxq; > - > - priv_lock(priv); > - if (priv->started) { > - priv_unlock(priv); > - return 0; > - } > - DEBUG("%p: attaching configured flows to all RX queues", (void *)dev); > - priv->started = 1; > - if (priv->rss) { > - rxq = &priv->rxq_parent; > - r = 1; > - } else { > - rxq = (*priv->rxqs)[0]; > - r = priv->rxqs_n; > - } > - /* Iterate only once when RSS is enabled. */ > - do { > - int ret; > - > - /* Ignore nonexistent RX queues. */ > - if (rxq == NULL) > - continue; > - ret = rxq_mac_addrs_add(rxq); > - if (!ret && priv->promisc) > - ret = rxq_promiscuous_enable(rxq); > - if (!ret && priv->allmulti) > - ret = rxq_allmulticast_enable(rxq); > - if (!ret) > - continue; > - WARN("%p: QP flow attachment failed: %s", > - (void *)dev, strerror(ret)); > - /* Rollback. */ > - while (i != 0) { > - rxq = (*priv->rxqs)[--i]; > - if (rxq != NULL) { > - rxq_allmulticast_disable(rxq); > - rxq_promiscuous_disable(rxq); > - rxq_mac_addrs_del(rxq); > - } > - } > - priv->started = 0; > - return -ret; > - } while ((--r) && ((rxq = (*priv->rxqs)[++i]), i)); > - priv_unlock(priv); > - return 0; > -} > - > -/** > - * DPDK callback to stop the device. > - * > - * Simulate device stop by detaching all configured flows. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - */ > -static void > -mlx4_dev_stop(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i = 0; > - unsigned int r; > - struct rxq *rxq; > - > - priv_lock(priv); > - if (!priv->started) { > - priv_unlock(priv); > - return; > - } > - DEBUG("%p: detaching flows from all RX queues", (void *)dev); > - priv->started = 0; > - if (priv->rss) { > - rxq = &priv->rxq_parent; > - r = 1; > - } else { > - rxq = (*priv->rxqs)[0]; > - r = priv->rxqs_n; > - } > - /* Iterate only once when RSS is enabled. */ > - do { > - /* Ignore nonexistent RX queues. */ > - if (rxq == NULL) > - continue; > - rxq_allmulticast_disable(rxq); > - rxq_promiscuous_disable(rxq); > - rxq_mac_addrs_del(rxq); > - } while ((--r) && ((rxq = (*priv->rxqs)[++i]), i)); > - priv_unlock(priv); > -} > - > -/** > - * Dummy DPDK callback for TX. > - * > - * This function is used to temporarily replace the real callback during > - * unsafe control operations on the queue, or in case of error. > - * > - * @param dpdk_txq > - * Generic pointer to TX queue structure. > - * @param[in] pkts > - * Packets to transmit. > - * @param pkts_n > - * Number of packets in array. > - * > - * @return > - * Number of packets successfully transmitted (<= pkts_n). > - */ > -static uint16_t > -removed_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n) > -{ > - (void)dpdk_txq; > - (void)pkts; > - (void)pkts_n; > - return 0; > -} > - > -/** > - * Dummy DPDK callback for RX. > - * > - * This function is used to temporarily replace the real callback during > - * unsafe control operations on the queue, or in case of error. > - * > - * @param dpdk_rxq > - * Generic pointer to RX queue structure. > - * @param[out] pkts > - * Array to store received packets. > - * @param pkts_n > - * Maximum number of packets in array. > - * > - * @return > - * Number of packets successfully received (<= pkts_n). > - */ > -static uint16_t > -removed_rx_burst(void *dpdk_rxq, struct rte_mbuf **pkts, uint16_t pkts_n) > -{ > - (void)dpdk_rxq; > - (void)pkts; > - (void)pkts_n; > - return 0; > -} > - > -/** > - * DPDK callback to close the device. > - * > - * Destroy all queues and objects, free memory. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - */ > -static void > -mlx4_dev_close(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - void *tmp; > - unsigned int i; > - > - priv_lock(priv); > - DEBUG("%p: closing device \"%s\"", > - (void *)dev, > - ((priv->ctx != NULL) ? priv->ctx->device->name : "")); > - /* Prevent crashes when queues are still in use. This is unfortunately > - * still required for DPDK 1.3 because some programs (such as testpmd) > - * never release them before closing the device. */ > - dev->rx_pkt_burst = removed_rx_burst; > - dev->tx_pkt_burst = removed_tx_burst; > - if (priv->rxqs != NULL) { > - /* XXX race condition if mlx4_rx_burst() is still running. */ > - usleep(1000); > - for (i = 0; (i != priv->rxqs_n); ++i) { > - tmp = (*priv->rxqs)[i]; > - if (tmp == NULL) > - continue; > - (*priv->rxqs)[i] = NULL; > - rxq_cleanup(tmp); > - rte_free(tmp); > - } > - priv->rxqs_n = 0; > - priv->rxqs = NULL; > - } > - if (priv->txqs != NULL) { > - /* XXX race condition if mlx4_tx_burst() is still running. */ > - usleep(1000); > - for (i = 0; (i != priv->txqs_n); ++i) { > - tmp = (*priv->txqs)[i]; > - if (tmp == NULL) > - continue; > - (*priv->txqs)[i] = NULL; > - txq_cleanup(tmp); > - rte_free(tmp); > - } > - priv->txqs_n = 0; > - priv->txqs = NULL; > - } > - if (priv->rss) > - rxq_cleanup(&priv->rxq_parent); > - if (priv->pd != NULL) { > - assert(priv->ctx != NULL); > - claim_zero(ibv_dealloc_pd(priv->pd)); > - claim_zero(ibv_close_device(priv->ctx)); > - } else > - assert(priv->ctx == NULL); > - priv_unlock(priv); > - memset(priv, 0, sizeof(*priv)); > -} > - > -/** > - * DPDK callback to get information about the device. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param[out] info > - * Info structure output buffer. > - */ > -static void > -mlx4_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int max; > - > - priv_lock(priv); > - /* FIXME: we should ask the device for these values. */ > - info->min_rx_bufsize = 32; > - info->max_rx_pktlen = 65536; > - /* > - * Since we need one CQ per QP, the limit is the minimum number > - * between the two values. > - */ > - max = ((priv->device_attr.max_cq > priv->device_attr.max_qp) ? > - priv->device_attr.max_qp : priv->device_attr.max_cq); > - /* If max >= 65535 then max = 0, max_rx_queues is uint16_t. */ > - if (max >= 65535) > - max = 65535; > - info->max_rx_queues = max; > - info->max_tx_queues = max; > - info->max_mac_addrs = elemof(priv->mac); > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to get device statistics. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param[out] stats > - * Stats structure output buffer. > - */ > -static void > -mlx4_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) > -{ > - struct priv *priv = dev->data->dev_private; > - struct rte_eth_stats tmp = {0}; > - unsigned int i; > - unsigned int idx; > - > - priv_lock(priv); > - /* Add software counters. */ > - for (i = 0; (i != priv->rxqs_n); ++i) { > - struct rxq *rxq = (*priv->rxqs)[i]; > - > - if (rxq == NULL) > - continue; > - idx = rxq->stats.idx; > - if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) { > -#ifdef MLX4_PMD_SOFT_COUNTERS > - tmp.q_ipackets[idx] += rxq->stats.ipackets; > - tmp.q_ibytes[idx] += rxq->stats.ibytes; > -#endif > - tmp.q_errors[idx] += (rxq->stats.idropped + > - rxq->stats.rx_nombuf); > - } > -#ifdef MLX4_PMD_SOFT_COUNTERS > - tmp.ipackets += rxq->stats.ipackets; > - tmp.ibytes += rxq->stats.ibytes; > -#endif > - tmp.ierrors += rxq->stats.idropped; > - tmp.rx_nombuf += rxq->stats.rx_nombuf; > - } > - for (i = 0; (i != priv->txqs_n); ++i) { > - struct txq *txq = (*priv->txqs)[i]; > - > - if (txq == NULL) > - continue; > - idx = txq->stats.idx; > - if (idx < RTE_ETHDEV_QUEUE_STAT_CNTRS) { > -#ifdef MLX4_PMD_SOFT_COUNTERS > - tmp.q_opackets[idx] += txq->stats.opackets; > - tmp.q_obytes[idx] += txq->stats.obytes; > -#endif > - tmp.q_errors[idx] += txq->stats.odropped; > - } > -#ifdef MLX4_PMD_SOFT_COUNTERS > - tmp.opackets += txq->stats.opackets; > - tmp.obytes += txq->stats.obytes; > -#endif > - tmp.oerrors += txq->stats.odropped; > - } > -#ifndef MLX4_PMD_SOFT_COUNTERS > - /* FIXME: retrieve and add hardware counters. */ > -#endif > - *stats = tmp; > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to clear device statistics. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - */ > -static void > -mlx4_stats_reset(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i; > - unsigned int idx; > - > - priv_lock(priv); > - for (i = 0; (i != priv->rxqs_n); ++i) { > - if ((*priv->rxqs)[i] == NULL) > - continue; > - idx = (*priv->rxqs)[i]->stats.idx; > - (*priv->rxqs)[i]->stats = > - (struct mlx4_rxq_stats){ .idx = idx }; > - } > - for (i = 0; (i != priv->txqs_n); ++i) { > - if ((*priv->txqs)[i] == NULL) > - continue; > - idx = (*priv->rxqs)[i]->stats.idx; > - (*priv->txqs)[i]->stats = > - (struct mlx4_txq_stats){ .idx = idx }; > - } > -#ifndef MLX4_PMD_SOFT_COUNTERS > - /* FIXME: reset hardware counters. */ > -#endif > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to remove a MAC address. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param index > - * MAC address index. > - */ > -static void > -mlx4_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index) > -{ > - struct priv *priv = dev->data->dev_private; > - > - priv_lock(priv); > - DEBUG("%p: removing MAC address from index %" PRIu32, > - (void *)dev, index); > - if (index >= MLX4_MAX_MAC_ADDRESSES) > - goto end; > - /* Refuse to remove the broadcast address, this one is special. */ > - if (!memcmp(priv->mac[index].addr_bytes, "\xff\xff\xff\xff\xff\xff", > - ETHER_ADDR_LEN)) > - goto end; > - priv_mac_addr_del(priv, index); > -end: > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to add a MAC address. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param mac_addr > - * MAC address to register. > - * @param index > - * MAC address index. > - * @param vmdq > - * VMDq pool index to associate address with (ignored). > - */ > -static void > -mlx4_mac_addr_add(struct rte_eth_dev *dev, struct ether_addr *mac_addr, > - uint32_t index, uint32_t vmdq) > -{ > - struct priv *priv = dev->data->dev_private; > - > - (void)vmdq; > - priv_lock(priv); > - DEBUG("%p: adding MAC address at index %" PRIu32, > - (void *)dev, index); > - if (index >= MLX4_MAX_MAC_ADDRESSES) > - goto end; > - /* Refuse to add the broadcast address, this one is special. */ > - if (!memcmp(mac_addr->addr_bytes, "\xff\xff\xff\xff\xff\xff", > - ETHER_ADDR_LEN)) > - goto end; > - priv_mac_addr_add(priv, index, > - (const uint8_t (*)[ETHER_ADDR_LEN]) > - mac_addr->addr_bytes); > -end: > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to enable promiscuous mode. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - */ > -static void > -mlx4_promiscuous_enable(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i; > - int ret; > - > - priv_lock(priv); > - if (priv->promisc) { > - priv_unlock(priv); > - return; > - } > - /* If device isn't started, this is all we need to do. */ > - if (!priv->started) > - goto end; > - if (priv->rss) { > - ret = rxq_promiscuous_enable(&priv->rxq_parent); > - if (ret) { > - priv_unlock(priv); > - return; > - } > - goto end; > - } > - for (i = 0; (i != priv->rxqs_n); ++i) { > - if ((*priv->rxqs)[i] == NULL) > - continue; > - ret = rxq_promiscuous_enable((*priv->rxqs)[i]); > - if (!ret) > - continue; > - /* Failure, rollback. */ > - while (i != 0) > - if ((*priv->rxqs)[--i] != NULL) > - rxq_promiscuous_disable((*priv->rxqs)[i]); > - priv_unlock(priv); > - return; > - } > -end: > - priv->promisc = 1; > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to disable promiscuous mode. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - */ > -static void > -mlx4_promiscuous_disable(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i; > - > - priv_lock(priv); > - if (!priv->promisc) { > - priv_unlock(priv); > - return; > - } > - if (priv->rss) { > - rxq_promiscuous_disable(&priv->rxq_parent); > - goto end; > - } > - for (i = 0; (i != priv->rxqs_n); ++i) > - if ((*priv->rxqs)[i] != NULL) > - rxq_promiscuous_disable((*priv->rxqs)[i]); > -end: > - priv->promisc = 0; > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to enable allmulti mode. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - */ > -static void > -mlx4_allmulticast_enable(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i; > - int ret; > - > - priv_lock(priv); > - if (priv->allmulti) { > - priv_unlock(priv); > - return; > - } > - /* If device isn't started, this is all we need to do. */ > - if (!priv->started) > - goto end; > - if (priv->rss) { > - ret = rxq_allmulticast_enable(&priv->rxq_parent); > - if (ret) { > - priv_unlock(priv); > - return; > - } > - goto end; > - } > - for (i = 0; (i != priv->rxqs_n); ++i) { > - if ((*priv->rxqs)[i] == NULL) > - continue; > - ret = rxq_allmulticast_enable((*priv->rxqs)[i]); > - if (!ret) > - continue; > - /* Failure, rollback. */ > - while (i != 0) > - if ((*priv->rxqs)[--i] != NULL) > - rxq_allmulticast_disable((*priv->rxqs)[i]); > - priv_unlock(priv); > - return; > - } > -end: > - priv->allmulti = 1; > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to disable allmulti mode. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - */ > -static void > -mlx4_allmulticast_disable(struct rte_eth_dev *dev) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i; > - > - priv_lock(priv); > - if (!priv->allmulti) { > - priv_unlock(priv); > - return; > - } > - if (priv->rss) { > - rxq_allmulticast_disable(&priv->rxq_parent); > - goto end; > - } > - for (i = 0; (i != priv->rxqs_n); ++i) > - if ((*priv->rxqs)[i] != NULL) > - rxq_allmulticast_disable((*priv->rxqs)[i]); > -end: > - priv->allmulti = 0; > - priv_unlock(priv); > -} > - > -/** > - * DPDK callback to retrieve physical link information (unlocked version). > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param wait_to_complete > - * Wait for request completion (ignored). > - */ > -static int > -mlx4_link_update_unlocked(struct rte_eth_dev *dev, int wait_to_complete) > -{ > - struct priv *priv = dev->data->dev_private; > - struct ibv_port_attr port_attr; > - static const uint8_t width_mult[] = { > - /* Multiplier values taken from devinfo.c in libibverbs. */ > - 0, 1, 4, 0, 8, 0, 0, 0, 12, 0 > - }; > - > - (void)wait_to_complete; > - errno = ibv_query_port(priv->ctx, priv->port, &port_attr); > - if (errno) { > - WARN("port query failed: %s", strerror(errno)); > - return -1; > - } > - dev->data->dev_link = (struct rte_eth_link){ > - .link_speed = (ibv_rate_to_mbps(mult_to_ibv_rate > - (port_attr.active_speed)) * > - width_mult[(port_attr.active_width % > - sizeof(width_mult))]), > - .link_duplex = ETH_LINK_FULL_DUPLEX, > - .link_status = (port_attr.state == IBV_PORT_ACTIVE) > - }; > - if (memcmp(&port_attr, &priv->port_attr, sizeof(port_attr))) { > - /* Link status changed. */ > - priv->port_attr = port_attr; > - return 0; > - } > - /* Link status is still the same. */ > - return -1; > -} > - > -/** > - * DPDK callback to retrieve physical link information. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param wait_to_complete > - * Wait for request completion (ignored). > - */ > -static int > -mlx4_link_update(struct rte_eth_dev *dev, int wait_to_complete) > -{ > - struct priv *priv = dev->data->dev_private; > - int ret; > - > - priv_lock(priv); > - ret = mlx4_link_update_unlocked(dev, wait_to_complete); > - priv_unlock(priv); > - return ret; > -} > - > -/** > - * DPDK callback to change the MTU. > - * > - * Setting the MTU affects hardware MRU (packets larger than the MTU cannot be > - * received). Use this as a hint to enable/disable scattered packets support > - * and improve performance when not needed. > - * Since failure is not an option, reconfiguring queues on the fly is not > - * recommended. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param in_mtu > - * New MTU. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) > -{ > - struct priv *priv = dev->data->dev_private; > - int ret = 0; > - unsigned int i; > - uint16_t (*rx_func)(void *, struct rte_mbuf **, uint16_t) = > - mlx4_rx_burst; > - > - priv_lock(priv); > - /* Set kernel interface MTU first. */ > - if (priv_set_mtu(priv, mtu)) { > - ret = errno; > - WARN("cannot set port %u MTU to %u: %s", priv->port, mtu, > - strerror(ret)); > - goto out; > - } else > - DEBUG("adapter port %u MTU set to %u", priv->port, mtu); > - priv->mtu = mtu; > - /* Temporarily replace RX handler with a fake one, assuming it has not > - * been copied elsewhere. */ > - dev->rx_pkt_burst = removed_rx_burst; > - /* Make sure everyone has left mlx4_rx_burst() and uses > - * removed_rx_burst() instead. */ > - rte_wmb(); > - usleep(1000); > - /* Reconfigure each RX queue. */ > - for (i = 0; (i != priv->rxqs_n); ++i) { > - struct rxq *rxq = (*priv->rxqs)[i]; > - unsigned int max_frame_len; > - int sp; > - > - if (rxq == NULL) > - continue; > - /* Calculate new maximum frame length according to MTU and > - * toggle scattered support (sp) if necessary. */ > - max_frame_len = (priv->mtu + ETHER_HDR_LEN + > - (ETHER_MAX_VLAN_FRAME_LEN - ETHER_MAX_LEN)); > - sp = (max_frame_len > (rxq->mb_len - RTE_PKTMBUF_HEADROOM)); > - /* Provide new values to rxq_setup(). */ > - dev->data->dev_conf.rxmode.jumbo_frame = sp; > - dev->data->dev_conf.rxmode.max_rx_pkt_len = max_frame_len; > - ret = rxq_rehash(dev, rxq); > - if (ret) { > - /* Force SP RX if that queue requires it and abort. */ > - if (rxq->sp) > - rx_func = mlx4_rx_burst_sp; > - break; > - } > - /* Reenable non-RSS queue attributes. No need to check > - * for errors at this stage. */ > - if (!priv->rss) { > - rxq_mac_addrs_add(rxq); > - if (priv->promisc) > - rxq_promiscuous_enable(rxq); > - if (priv->allmulti) > - rxq_allmulticast_enable(rxq); > - } > - /* Scattered burst function takes priority. */ > - if (rxq->sp) > - rx_func = mlx4_rx_burst_sp; > - } > - /* Burst functions can now be called again. */ > - rte_wmb(); > - dev->rx_pkt_burst = rx_func; > -out: > - priv_unlock(priv); > - assert(ret >= 0); > - return -ret; > -} > - > -/** > - * DPDK callback to get flow control status. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param[out] fc_conf > - * Flow control output buffer. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_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 = ðpause; > - priv_lock(priv); > - if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { > - ret = errno; > - WARN("ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM)" > - " failed: %s", > - strerror(ret)); > - goto out; > - } > - > - fc_conf->autoneg = ethpause.autoneg; > - if (ethpause.rx_pause && ethpause.tx_pause) > - fc_conf->mode = RTE_FC_FULL; > - else if (ethpause.rx_pause) > - fc_conf->mode = RTE_FC_RX_PAUSE; > - else if (ethpause.tx_pause) > - 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; > -} > - > -/** > - * DPDK callback to modify flow control parameters. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param[in] fc_conf > - * Flow control parameters. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_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 > - }; > - int ret; > - > - ifr.ifr_data = ðpause; > - ethpause.autoneg = fc_conf->autoneg; > - if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || > - (fc_conf->mode & RTE_FC_RX_PAUSE)) > - ethpause.rx_pause = 1; > - else > - ethpause.rx_pause = 0; > - > - if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || > - (fc_conf->mode & RTE_FC_TX_PAUSE)) > - 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 = 0; > - > -out: > - priv_unlock(priv); > - assert(ret >= 0); > - return -ret; > -} > - > -/** > - * Configure a VLAN filter. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param vlan_id > - * VLAN ID to filter. > - * @param on > - * Toggle filter. > - * > - * @return > - * 0 on success, errno value on failure. > - */ > -static int > -vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) > -{ > - struct priv *priv = dev->data->dev_private; > - unsigned int i; > - unsigned int j = -1; > - > - DEBUG("%p: %s VLAN filter ID %" PRIu16, > - (void *)dev, (on ? "enable" : "disable"), vlan_id); > - for (i = 0; (i != elemof(priv->vlan_filter)); ++i) { > - if (!priv->vlan_filter[i].enabled) { > - /* Unused index, remember it. */ > - j = i; > - continue; > - } > - if (priv->vlan_filter[i].id != vlan_id) > - continue; > - /* This VLAN ID is already known, use its index. */ > - j = i; > - break; > - } > - /* Check if there's room for another VLAN filter. */ > - if (j == (unsigned int)-1) > - return ENOMEM; > - /* > - * VLAN filters apply to all configured MAC addresses, flow > - * specifications must be reconfigured accordingly. > - */ > - priv->vlan_filter[j].id = vlan_id; > - if ((on) && (!priv->vlan_filter[j].enabled)) { > - /* > - * Filter is disabled, enable it. > - * Rehashing flows in all RX queues is necessary. > - */ > - if (priv->rss) > - rxq_mac_addrs_del(&priv->rxq_parent); > - else > - for (i = 0; (i != priv->rxqs_n); ++i) > - if ((*priv->rxqs)[i] != NULL) > - rxq_mac_addrs_del((*priv->rxqs)[i]); > - priv->vlan_filter[j].enabled = 1; > - if (priv->started) { > - if (priv->rss) > - rxq_mac_addrs_add(&priv->rxq_parent); > - else > - for (i = 0; (i != priv->rxqs_n); ++i) { > - if ((*priv->rxqs)[i] == NULL) > - continue; > - rxq_mac_addrs_add((*priv->rxqs)[i]); > - } > - } > - } else if ((!on) && (priv->vlan_filter[j].enabled)) { > - /* > - * Filter is enabled, disable it. > - * Rehashing flows in all RX queues is necessary. > - */ > - if (priv->rss) > - rxq_mac_addrs_del(&priv->rxq_parent); > - else > - for (i = 0; (i != priv->rxqs_n); ++i) > - if ((*priv->rxqs)[i] != NULL) > - rxq_mac_addrs_del((*priv->rxqs)[i]); > - priv->vlan_filter[j].enabled = 0; > - if (priv->started) { > - if (priv->rss) > - rxq_mac_addrs_add(&priv->rxq_parent); > - else > - for (i = 0; (i != priv->rxqs_n); ++i) { > - if ((*priv->rxqs)[i] == NULL) > - continue; > - rxq_mac_addrs_add((*priv->rxqs)[i]); > - } > - } > - } > - return 0; > -} > - > -/** > - * DPDK callback to configure a VLAN filter. > - * > - * @param dev > - * Pointer to Ethernet device structure. > - * @param vlan_id > - * VLAN ID to filter. > - * @param on > - * Toggle filter. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on) > -{ > - struct priv *priv = dev->data->dev_private; > - int ret; > - > - priv_lock(priv); > - ret = vlan_filter_set(dev, vlan_id, on); > - priv_unlock(priv); > - assert(ret >= 0); > - return -ret; > -} > - > -static const struct eth_dev_ops mlx4_dev_ops = { > - .dev_configure = mlx4_dev_configure, > - .dev_start = mlx4_dev_start, > - .dev_stop = mlx4_dev_stop, > - .dev_close = mlx4_dev_close, > - .promiscuous_enable = mlx4_promiscuous_enable, > - .promiscuous_disable = mlx4_promiscuous_disable, > - .allmulticast_enable = mlx4_allmulticast_enable, > - .allmulticast_disable = mlx4_allmulticast_disable, > - .link_update = mlx4_link_update, > - .stats_get = mlx4_stats_get, > - .stats_reset = mlx4_stats_reset, > - .queue_stats_mapping_set = NULL, > - .dev_infos_get = mlx4_dev_infos_get, > - .vlan_filter_set = mlx4_vlan_filter_set, > - .vlan_tpid_set = NULL, > - .vlan_strip_queue_set = NULL, > - .vlan_offload_set = NULL, > - .rx_queue_setup = mlx4_rx_queue_setup, > - .tx_queue_setup = mlx4_tx_queue_setup, > - .rx_queue_release = mlx4_rx_queue_release, > - .tx_queue_release = mlx4_tx_queue_release, > - .dev_led_on = NULL, > - .dev_led_off = NULL, > - .flow_ctrl_get = mlx4_dev_get_flow_ctrl, > - .flow_ctrl_set = mlx4_dev_set_flow_ctrl, > - .priority_flow_ctrl_set = NULL, > - .mac_addr_remove = mlx4_mac_addr_remove, > - .mac_addr_add = mlx4_mac_addr_add, > - .mtu_set = mlx4_dev_set_mtu, > - .fdir_add_signature_filter = NULL, > - .fdir_update_signature_filter = NULL, > - .fdir_remove_signature_filter = NULL, > - .fdir_add_perfect_filter = NULL, > - .fdir_update_perfect_filter = NULL, > - .fdir_remove_perfect_filter = NULL, > - .fdir_set_masks = NULL > -}; > - > -/** > - * Get PCI information from struct ibv_device. > - * > - * @param device > - * Pointer to Ethernet device structure. > - * @param[out] pci_addr > - * PCI bus address output buffer. > - * > - * @return > - * 0 on success, -1 on failure and errno is set. > - */ > -static int > -mlx4_ibv_device_to_pci_addr(const struct ibv_device *device, > - struct rte_pci_addr *pci_addr) > -{ > - FILE *file; > - char line[32]; > - MKSTR(path, "%s/device/uevent", device->ibdev_path); > - > - file = fopen(path, "rb"); > - if (file == NULL) > - return -1; > - while (fgets(line, sizeof(line), file) == line) { > - size_t len = strlen(line); > - int ret; > - > - /* Truncate long lines. */ > - if (len == (sizeof(line) - 1)) > - while (line[(len - 1)] != '\n') { > - ret = fgetc(file); > - if (ret == EOF) > - break; > - line[(len - 1)] = ret; > - } > - /* Extract information. */ > - if (sscanf(line, > - "PCI_SLOT_NAME=" > - "%" SCNx16 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n", > - &pci_addr->domain, > - &pci_addr->bus, > - &pci_addr->devid, > - &pci_addr->function) == 4) { > - ret = 0; > - break; > - } > - } > - fclose(file); > - return 0; > -} > - > -/** > - * Derive MAC address from port GID. > - * > - * @param[out] mac > - * MAC address output buffer. > - * @param port > - * Physical port number. > - * @param[in] gid > - * Port GID. > - */ > -static void > -mac_from_gid(uint8_t (*mac)[ETHER_ADDR_LEN], uint32_t port, uint8_t *gid) > -{ > - memcpy(&(*mac)[0], gid + 8, 3); > - memcpy(&(*mac)[3], gid + 13, 3); > - if (port == 1) > - (*mac)[0] ^= 2; > -} > - > -/* Support up to 32 adapters. */ > -static struct { > - struct rte_pci_addr pci_addr; /* associated PCI address */ > - uint32_t ports; /* physical ports bitfield. */ > -} mlx4_dev[32]; > - > -/** > - * Get device index in mlx4_dev[] from PCI bus address. > - * > - * @param[in] pci_addr > - * PCI bus address to look for. > - * > - * @return > - * mlx4_dev[] index on success, -1 on failure. > - */ > -static int > -mlx4_dev_idx(struct rte_pci_addr *pci_addr) > -{ > - unsigned int i; > - int ret = -1; > - > - assert(pci_addr != NULL); > - for (i = 0; (i != elemof(mlx4_dev)); ++i) { > - if ((mlx4_dev[i].pci_addr.domain == pci_addr->domain) && > - (mlx4_dev[i].pci_addr.bus == pci_addr->bus) && > - (mlx4_dev[i].pci_addr.devid == pci_addr->devid) && > - (mlx4_dev[i].pci_addr.function == pci_addr->function)) > - return i; > - if ((mlx4_dev[i].ports == 0) && (ret == -1)) > - ret = i; > - } > - return ret; > -} > - > -/** > - * Retrieve integer value from environment variable. > - * > - * @param[in] name > - * Environment variable name. > - * > - * @return > - * Integer value, 0 if the variable is not set. > - */ > -static int > -mlx4_getenv_int(const char *name) > -{ > - const char *val = getenv(name); > - > - if (val == NULL) > - return 0; > - return atoi(val); > -} > - > -static struct eth_driver mlx4_driver; > - > -/** > - * DPDK callback to register a PCI device. > - * > - * This function creates an Ethernet device for each port of a given > - * PCI device. > - * > - * @param[in] pci_drv > - * PCI driver structure (mlx4_driver). > - * @param[in] pci_dev > - * PCI device information. > - * > - * @return > - * 0 on success, negative errno value on failure. > - */ > -static int > -mlx4_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev) > -{ > - struct ibv_device **list; > - struct ibv_device *ibv_dev; > - int err = 0; > - struct ibv_context *attr_ctx = NULL; > - struct ibv_device_attr device_attr; > - unsigned int vf; > - int idx; > - int i; > - > - (void)pci_drv; > - assert(pci_drv == &mlx4_driver.pci_drv); > - /* Get mlx4_dev[] index. */ > - idx = mlx4_dev_idx(&pci_dev->addr); > - if (idx == -1) { > - ERROR("this driver cannot support any more adapters"); > - return -ENOMEM; > - } > - DEBUG("using driver device index %d", idx); > - > - /* Save PCI address. */ > - mlx4_dev[idx].pci_addr = pci_dev->addr; > - list = ibv_get_device_list(&i); > - if (list == NULL) { > - assert(errno); > - if (errno == ENOSYS) { > - WARN("cannot list devices, is ib_uverbs loaded?"); > - return 0; > - } > - return -errno; > - } > - assert(i >= 0); > - /* > - * For each listed device, check related sysfs entry against > - * the provided PCI ID. > - */ > - while (i != 0) { > - struct rte_pci_addr pci_addr; > - > - --i; > - DEBUG("checking device \"%s\"", list[i]->name); > - if (mlx4_ibv_device_to_pci_addr(list[i], &pci_addr)) > - continue; > - if ((pci_dev->addr.domain != pci_addr.domain) || > - (pci_dev->addr.bus != pci_addr.bus) || > - (pci_dev->addr.devid != pci_addr.devid) || > - (pci_dev->addr.function != pci_addr.function)) > - continue; > - vf = (pci_dev->id.device_id == > - PCI_DEVICE_ID_MELLANOX_CONNECTX3VF); > - INFO("PCI information matches, using device \"%s\" (VF: %s)", > - list[i]->name, (vf ? "true" : "false")); > - attr_ctx = ibv_open_device(list[i]); > - err = errno; > - break; > - } > - if (attr_ctx == NULL) { > - ibv_free_device_list(list); > - switch (err) { > - case 0: > - WARN("cannot access device, is mlx4_ib loaded?"); > - return 0; > - case EINVAL: > - WARN("cannot use device, are drivers up to date?"); > - return 0; > - } > - assert(err > 0); > - return -err; > - } > - ibv_dev = list[i]; > - > - DEBUG("device opened"); > - if (ibv_query_device(attr_ctx, &device_attr)) > - goto error; > - INFO("%u port(s) detected", device_attr.phys_port_cnt); > - > - for (i = 0; i < device_attr.phys_port_cnt; i++) { > - uint32_t port = i + 1; /* ports are indexed from one */ > - uint32_t test = (1 << i); > - struct ibv_context *ctx = NULL; > - struct ibv_port_attr port_attr; > - struct ibv_pd *pd = NULL; > - struct priv *priv = NULL; > - struct rte_eth_dev *eth_dev; > -#if defined(INLINE_RECV) || defined(RSS_SUPPORT) > - struct ibv_exp_device_attr exp_device_attr; > -#endif > - struct ether_addr mac; > - union ibv_gid temp_gid; > - > -#ifdef RSS_SUPPORT > - exp_device_attr.comp_mask = > - (IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS | > - IBV_EXP_DEVICE_ATTR_RSS_TBL_SZ); > -#endif /* RSS_SUPPORT */ > - > - DEBUG("using port %u (%08" PRIx32 ")", port, test); > - > - ctx = ibv_open_device(ibv_dev); > - if (ctx == NULL) > - goto port_error; > - > - /* Check port status. */ > - err = ibv_query_port(ctx, port, &port_attr); > - if (err) { > - ERROR("port query failed: %s", strerror(err)); > - goto port_error; > - } > - if (port_attr.state != IBV_PORT_ACTIVE) > - WARN("bad state for port %d: \"%s\" (%d)", > - port, ibv_port_state_str(port_attr.state), > - port_attr.state); > - > - /* Allocate protection domain. */ > - pd = ibv_alloc_pd(ctx); > - if (pd == NULL) { > - ERROR("PD allocation failure"); > - err = ENOMEM; > - goto port_error; > - } > - > - mlx4_dev[idx].ports |= test; > - > - /* from rte_ethdev.c */ > - priv = rte_zmalloc("ethdev private structure", > - sizeof(*priv), > - RTE_CACHE_LINE_SIZE); > - if (priv == NULL) { > - ERROR("priv allocation failure"); > - err = ENOMEM; > - goto port_error; > - } > - > - priv->ctx = ctx; > - priv->device_attr = device_attr; > - priv->port_attr = port_attr; > - priv->port = port; > - priv->pd = pd; > - priv->mtu = ETHER_MTU; > -#ifdef RSS_SUPPORT > - if (ibv_exp_query_device(ctx, &exp_device_attr)) { > - INFO("experimental ibv_exp_query_device"); > - goto port_error; > - } > - if ((exp_device_attr.exp_device_cap_flags & > - IBV_EXP_DEVICE_QPG) && > - (exp_device_attr.exp_device_cap_flags & > - IBV_EXP_DEVICE_UD_RSS) && > - (exp_device_attr.comp_mask & > - IBV_EXP_DEVICE_ATTR_RSS_TBL_SZ) && > - (exp_device_attr.max_rss_tbl_sz > 0)) { > - priv->hw_qpg = 1; > - priv->hw_rss = 1; > - priv->max_rss_tbl_sz = exp_device_attr.max_rss_tbl_sz; > - } else { > - priv->hw_qpg = 0; > - priv->hw_rss = 0; > - priv->max_rss_tbl_sz = 0; > - } > - priv->hw_tss = !!(exp_device_attr.exp_device_cap_flags & > - IBV_EXP_DEVICE_UD_TSS); > - DEBUG("device flags: %s%s%s", > - (priv->hw_qpg ? "IBV_DEVICE_QPG " : ""), > - (priv->hw_tss ? "IBV_DEVICE_TSS " : ""), > - (priv->hw_rss ? "IBV_DEVICE_RSS " : "")); > - if (priv->hw_rss) > - DEBUG("maximum RSS indirection table size: %u", > - exp_device_attr.max_rss_tbl_sz); > -#endif /* RSS_SUPPORT */ > - > -#ifdef INLINE_RECV > - priv->inl_recv_size = mlx4_getenv_int("MLX4_INLINE_RECV_SIZE"); > - > - if (priv->inl_recv_size) { > - exp_device_attr.comp_mask = > - IBV_EXP_DEVICE_ATTR_INLINE_RECV_SZ; > - if (ibv_exp_query_device(ctx, &exp_device_attr)) { > - INFO("Couldn't query device for inline-receive" > - " capabilities."); > - priv->inl_recv_size = 0; > - } else { > - if ((unsigned)exp_device_attr.inline_recv_sz < > - priv->inl_recv_size) { > - INFO("Max inline-receive (%d) <" > - " requested inline-receive (%u)", > - exp_device_attr.inline_recv_sz, > - priv->inl_recv_size); > - priv->inl_recv_size = > - exp_device_attr.inline_recv_sz; > - } > - } > - INFO("Set inline receive size to %u", > - priv->inl_recv_size); > - } > -#endif /* INLINE_RECV */ > - > - (void)mlx4_getenv_int; > - priv->vf = vf; > - if (ibv_query_gid(ctx, port, 0, &temp_gid)) { > - ERROR("ibv_query_gid() failure"); > - goto port_error; > - } > - /* Configure the first MAC address by default. */ > - mac_from_gid(&mac.addr_bytes, port, temp_gid.raw); > - INFO("port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x", > - priv->port, > - mac.addr_bytes[0], mac.addr_bytes[1], > - mac.addr_bytes[2], mac.addr_bytes[3], > - mac.addr_bytes[4], mac.addr_bytes[5]); > - /* Register MAC and broadcast addresses. */ > - claim_zero(priv_mac_addr_add(priv, 0, > - (const uint8_t (*)[ETHER_ADDR_LEN]) > - mac.addr_bytes)); > - claim_zero(priv_mac_addr_add(priv, 1, > - &(const uint8_t [ETHER_ADDR_LEN]) > - { "\xff\xff\xff\xff\xff\xff" })); > -#ifndef NDEBUG > - { > - char ifname[IF_NAMESIZE]; > - > - if (priv_get_ifname(priv, &ifname) == 0) > - DEBUG("port %u ifname is \"%s\"", > - priv->port, ifname); > - else > - DEBUG("port %u ifname is unknown", priv->port); > - } > -#endif > - /* Get actual MTU if possible. */ > - priv_get_mtu(priv, &priv->mtu); > - DEBUG("port %u MTU is %u", priv->port, priv->mtu); > - > - /* from rte_ethdev.c */ > - { > - char name[RTE_ETH_NAME_MAX_LEN]; > - > - snprintf(name, sizeof(name), "%s port %u", > - ibv_get_device_name(ibv_dev), port); > - eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI); > - } > - if (eth_dev == NULL) { > - ERROR("can not allocate rte ethdev"); > - err = ENOMEM; > - goto port_error; > - } > - > - eth_dev->data->dev_private = priv; > - eth_dev->pci_dev = pci_dev; > - eth_dev->driver = &mlx4_driver; > - eth_dev->data->rx_mbuf_alloc_failed = 0; > - eth_dev->data->mtu = ETHER_MTU; > - > - priv->dev = eth_dev; > - eth_dev->dev_ops = &mlx4_dev_ops; > - eth_dev->data->mac_addrs = priv->mac; > - > - /* Bring Ethernet device up. */ > - DEBUG("forcing Ethernet interface up"); > - priv_set_flags(priv, ~IFF_UP, IFF_UP); > - continue; > - > -port_error: > - rte_free(priv); > - if (pd) > - claim_zero(ibv_dealloc_pd(pd)); > - if (ctx) > - claim_zero(ibv_close_device(ctx)); > - break; > - } > - > - /* > - * XXX if something went wrong in the loop above, there is a resource > - * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as > - * long as the dpdk does not provide a way to deallocate a ethdev and a > - * way to enumerate the registered ethdevs to free the previous ones. > - */ > - > - /* no port found, complain */ > - if (!mlx4_dev[idx].ports) { > - err = ENODEV; > - goto error; > - } > - > -error: > - if (attr_ctx) > - claim_zero(ibv_close_device(attr_ctx)); > - if (list) > - ibv_free_device_list(list); > - assert(err >= 0); > - return -err; > -} > - > -static const struct rte_pci_id mlx4_pci_id_map[] = { > - { > - .vendor_id = PCI_VENDOR_ID_MELLANOX, > - .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX3, > - .subsystem_vendor_id = PCI_ANY_ID, > - .subsystem_device_id = PCI_ANY_ID > - }, > - { > - .vendor_id = PCI_VENDOR_ID_MELLANOX, > - .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO, > - .subsystem_vendor_id = PCI_ANY_ID, > - .subsystem_device_id = PCI_ANY_ID > - }, > - { > - .vendor_id = PCI_VENDOR_ID_MELLANOX, > - .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX3VF, > - .subsystem_vendor_id = PCI_ANY_ID, > - .subsystem_device_id = PCI_ANY_ID > - }, > - { > - .vendor_id = 0 > - } > -}; > - > -static struct eth_driver mlx4_driver = { > - .pci_drv = { > - .name = MLX4_DRIVER_NAME, > - .id_table = mlx4_pci_id_map, > - .devinit = mlx4_pci_devinit, > - }, > - .dev_private_size = sizeof(struct priv) > -}; > - > -/** > - * Driver initialization routine. > - */ > -static int > -rte_mlx4_pmd_init(const char *name, const char *args) > -{ > - (void)name; > - (void)args; > - rte_eal_pci_register(&mlx4_driver.pci_drv); > - return 0; > -} > - > -static struct rte_driver rte_mlx4_driver = { > - .type = PMD_PDEV, > - .name = MLX4_DRIVER_NAME, > - .init = rte_mlx4_pmd_init, > -}; > - > -PMD_REGISTER_DRIVER(rte_mlx4_driver) > diff --git a/lib/librte_pmd_mlx4/mlx4.h b/lib/librte_pmd_mlx4/mlx4.h > deleted file mode 100644 > index 433aa3b..0000000 > --- a/lib/librte_pmd_mlx4/mlx4.h > +++ /dev/null > @@ -1,157 +0,0 @@ > -/*- > - * BSD LICENSE > - * > - * Copyright 2012-2015 6WIND S.A. > - * Copyright 2012 Mellanox. > - * > - * Redistribution and use in source and binary forms, with or without > - * modification, are permitted provided that the following conditions > - * are met: > - * > - * * Redistributions of source code must retain the above copyright > - * notice, this list of conditions and the following disclaimer. > - * * Redistributions in binary form must reproduce the above copyright > - * notice, this list of conditions and the following disclaimer in > - * the documentation and/or other materials provided with the > - * distribution. > - * * Neither the name of 6WIND S.A. nor the names of its > - * contributors may be used to endorse or promote products derived > - * from this software without specific prior written permission. > - * > - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS > - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT > - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR > - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT > - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, > - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT > - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, > - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY > - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT > - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE > - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. > - */ > - > -#ifndef RTE_PMD_MLX4_H_ > -#define RTE_PMD_MLX4_H_ > - > -#include > -#include > -#include > - > -/* > - * Maximum number of simultaneous MAC addresses supported. > - * > - * According to ConnectX's Programmer Reference Manual: > - * The L2 Address Match is implemented by comparing a MAC/VLAN combination > - * of 128 MAC addresses and 127 VLAN values, comprising 128x127 possible > - * L2 addresses. > - */ > -#define MLX4_MAX_MAC_ADDRESSES 128 > - > -/* Maximum number of simultaneous VLAN filters supported. See above. */ > -#define MLX4_MAX_VLAN_IDS 127 > - > -/* Maximum number of Scatter/Gather Elements per Work Request. */ > -#ifndef MLX4_PMD_SGE_WR_N > -#define MLX4_PMD_SGE_WR_N 4 > -#endif > - > -/* Maximum size for inline data. */ > -#ifndef MLX4_PMD_MAX_INLINE > -#define MLX4_PMD_MAX_INLINE 0 > -#endif > - > -/* > - * Maximum number of cached Memory Pools (MPs) per TX queue. Each RTE MP > - * from which buffers are to be transmitted will have to be mapped by this > - * driver to their own Memory Region (MR). This is a slow operation. > - * > - * This value is always 1 for RX queues. > - */ > -#ifndef MLX4_PMD_TX_MP_CACHE > -#define MLX4_PMD_TX_MP_CACHE 8 > -#endif > - > -/* > - * If defined, only use software counters. The PMD will never ask the hardware > - * for these, and many of them won't be available. > - */ > -#ifndef MLX4_PMD_SOFT_COUNTERS > -#define MLX4_PMD_SOFT_COUNTERS 1 > -#endif > - > -enum { > - PCI_VENDOR_ID_MELLANOX = 0x15b3, > -}; > - > -enum { > - PCI_DEVICE_ID_MELLANOX_CONNECTX3 = 0x1003, > - PCI_DEVICE_ID_MELLANOX_CONNECTX3VF = 0x1004, > - PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO = 0x1007, > -}; > - > -#define MLX4_DRIVER_NAME "librte_pmd_mlx4" > - > -/* Bit-field manipulation. */ > -#define BITFIELD_DECLARE(bf, type, size) \ > - type bf[(((size_t)(size) / (sizeof(type) * CHAR_BIT)) + \ > - !!((size_t)(size) % (sizeof(type) * CHAR_BIT)))] > -#define BITFIELD_DEFINE(bf, type, size) \ > - BITFIELD_DECLARE((bf), type, (size)) = { 0 } > -#define BITFIELD_SET(bf, b) \ > - (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ > - (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] |= \ > - ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))) > -#define BITFIELD_RESET(bf, b) \ > - (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ > - (void)((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] &= \ > - ~((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT))))) > -#define BITFIELD_ISSET(bf, b) \ > - (assert((size_t)(b) < (sizeof(bf) * CHAR_BIT)), \ > - !!(((bf)[((b) / (sizeof((bf)[0]) * CHAR_BIT))] & \ > - ((size_t)1 << ((b) % (sizeof((bf)[0]) * CHAR_BIT)))))) > - > -/* Number of elements in array. */ > -#define elemof(a) (sizeof(a) / sizeof((a)[0])) > - > -/* Cast pointer p to structure member m to its parent structure of type t. */ > -#define containerof(p, t, m) ((t *)((uint8_t *)(p) - offsetof(t, m))) > - > -/* Branch prediction helpers. */ > -#ifndef likely > -#define likely(c) __builtin_expect(!!(c), 1) > -#endif > -#ifndef unlikely > -#define unlikely(c) __builtin_expect(!!(c), 0) > -#endif > - > -/* Debugging */ > -#ifndef NDEBUG > -#include > -#define DEBUG__(m, ...) \ > - (fprintf(stderr, "%s:%d: %s(): " m "%c", \ > - __FILE__, __LINE__, __func__, __VA_ARGS__), \ > - fflush(stderr), \ > - (void)0) > -/* > - * Save/restore errno around DEBUG__(). > - * XXX somewhat undefined behavior, but works. > - */ > -#define DEBUG_(...) \ > - (errno = ((int []){ \ > - *(volatile int *)&errno, \ > - (DEBUG__(__VA_ARGS__), 0) \ > - })[0]) > -#define DEBUG(...) DEBUG_(__VA_ARGS__, '\n') > -#define claim_zero(...) assert((__VA_ARGS__) == 0) > -#define claim_nonzero(...) assert((__VA_ARGS__) != 0) > -#define claim_positive(...) assert((__VA_ARGS__) >= 0) > -#else /* NDEBUG */ > -/* No-ops. */ > -#define DEBUG(...) (void)0 > -#define claim_zero(...) (__VA_ARGS__) > -#define claim_nonzero(...) (__VA_ARGS__) > -#define claim_positive(...) (__VA_ARGS__) > -#endif /* NDEBUG */ > - > -#endif /* RTE_PMD_MLX4_H_ */ > diff --git a/lib/librte_pmd_mlx4/rte_pmd_mlx4_version.map b/lib/librte_pmd_mlx4/rte_pmd_mlx4_version.map > deleted file mode 100644 > index ef35398..0000000 > --- a/lib/librte_pmd_mlx4/rte_pmd_mlx4_version.map > +++ /dev/null > @@ -1,4 +0,0 @@ > -DPDK_2.0 { > - > - local: *; > -}; > -- > 2.1.0 >