-/*-
- * BSD LICENSE
- *
- * Copyright 2012 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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2012 6WIND S.A.
+ * Copyright 2012 Mellanox Technologies, Ltd
*/
/**
(device_attr.vendor_part_id ==
PCI_DEVICE_ID_MELLANOX_CONNECTX3PRO);
DEBUG("L2 tunnel checksum offloads are %ssupported",
- (priv->hw_csum_l2tun ? "" : "not "));
+ priv->hw_csum_l2tun ? "" : "not ");
priv->hw_rss_sup = device_attr_ex.rss_caps.rx_hash_fields_mask;
if (!priv->hw_rss_sup) {
WARN("no RSS capabilities reported; disabling support"
}
DEBUG("supported RSS hash fields mask: %016" PRIx64,
priv->hw_rss_sup);
+ priv->hw_fcs_strip = !!(device_attr_ex.raw_packet_caps &
+ IBV_RAW_PACKET_CAP_SCATTER_FCS);
+ DEBUG("FCS stripping toggling is %ssupported",
+ priv->hw_fcs_strip ? "" : "not ");
/* Configure the first MAC address by default. */
if (mlx4_get_mac(priv, &mac.addr_bytes)) {
ERROR("cannot get MAC address, is mlx4_en loaded?"
#ifdef RTE_LIBRTE_MLX4_DLOPEN_DEPS
+/**
+ * Suffix RTE_EAL_PMD_PATH with "-glue".
+ *
+ * This function performs a sanity check on RTE_EAL_PMD_PATH before
+ * suffixing its last component.
+ *
+ * @param buf[out]
+ * Output buffer, should be large enough otherwise NULL is returned.
+ * @param size
+ * Size of @p out.
+ *
+ * @return
+ * Pointer to @p buf or @p NULL in case suffix cannot be appended.
+ */
+static char *
+mlx4_glue_path(char *buf, size_t size)
+{
+ static const char *const bad[] = { "/", ".", "..", NULL };
+ const char *path = RTE_EAL_PMD_PATH;
+ size_t len = strlen(path);
+ size_t off;
+ int i;
+
+ while (len && path[len - 1] == '/')
+ --len;
+ for (off = len; off && path[off - 1] != '/'; --off)
+ ;
+ for (i = 0; bad[i]; ++i)
+ if (!strncmp(path + off, bad[i], (int)(len - off)))
+ goto error;
+ i = snprintf(buf, size, "%.*s-glue", (int)len, path);
+ if (i == -1 || (size_t)i >= size)
+ goto error;
+ return buf;
+error:
+ ERROR("unable to append \"-glue\" to last component of"
+ " RTE_EAL_PMD_PATH (\"" RTE_EAL_PMD_PATH "\"),"
+ " please re-configure DPDK");
+ return NULL;
+}
+
/**
* Initialization routine for run-time dependency on rdma-core.
*/
static int
mlx4_glue_init(void)
{
+ char glue_path[sizeof(RTE_EAL_PMD_PATH) - 1 + sizeof("-glue")];
+ const char *path[] = {
+ /*
+ * A basic security check is necessary before trusting
+ * MLX4_GLUE_PATH, which may override RTE_EAL_PMD_PATH.
+ */
+ (geteuid() == getuid() && getegid() == getgid() ?
+ getenv("MLX4_GLUE_PATH") : NULL),
+ /*
+ * When RTE_EAL_PMD_PATH is set, use its glue-suffixed
+ * variant, otherwise let dlopen() look up libraries on its
+ * own.
+ */
+ (*RTE_EAL_PMD_PATH ?
+ mlx4_glue_path(glue_path, sizeof(glue_path)) : ""),
+ };
+ unsigned int i = 0;
void *handle = NULL;
void **sym;
const char *dlmsg;
- handle = dlopen(MLX4_GLUE, RTLD_LAZY);
+ while (!handle && i != RTE_DIM(path)) {
+ const char *end;
+ size_t len;
+ int ret;
+
+ if (!path[i]) {
+ ++i;
+ continue;
+ }
+ end = strpbrk(path[i], ":;");
+ if (!end)
+ end = path[i] + strlen(path[i]);
+ len = end - path[i];
+ ret = 0;
+ do {
+ char name[ret + 1];
+
+ ret = snprintf(name, sizeof(name), "%.*s%s" MLX4_GLUE,
+ (int)len, path[i],
+ (!len || *(end - 1) == '/') ? "" : "/");
+ if (ret == -1)
+ break;
+ if (sizeof(name) != (size_t)ret + 1)
+ continue;
+ DEBUG("looking for rdma-core glue as \"%s\"", name);
+ handle = dlopen(name, RTLD_LAZY);
+ break;
+ } while (1);
+ path[i] = end + 1;
+ if (!*end)
+ ++i;
+ }
if (!handle) {
rte_errno = EINVAL;
dlmsg = dlerror();
return;
assert(mlx4_glue);
#endif
+#ifndef NDEBUG
+ /* Glue structure must not contain any NULL pointers. */
+ {
+ unsigned int i;
+
+ for (i = 0; i != sizeof(*mlx4_glue) / sizeof(void *); ++i)
+ assert(((const void *const *)mlx4_glue)[i]);
+ }
+#endif
+ if (strcmp(mlx4_glue->version, MLX4_GLUE_VERSION)) {
+ ERROR("rdma-core glue \"%s\" mismatch: \"%s\" is required",
+ mlx4_glue->version, MLX4_GLUE_VERSION);
+ return;
+ }
mlx4_glue->fork_init();
rte_pci_register(&mlx4_driver);
}
git.droids-corp.org / dpdk.git / blobdiff