[dpdk-dev] [PATCH 1/6] test: remove unneeded casts
The malloc family returns void * and therefore cast is unnecessary.
Use calloc rather than zmalloc with multiply for array.
Signed-off-by: Stephen Hemminger
---
app/test/test_hash_perf.c | 8
app/test/test_mempool.c | 2 +-
app/test/test_ring.c | 2 +-
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/app/test/test_hash_perf.c b/app/test/test_hash_perf.c
index be34957..6f719fc 100644
--- a/app/test/test_hash_perf.c
+++ b/app/test/test_hash_perf.c
@@ -459,13 +459,13 @@ run_single_tbl_perf_test(const struct rte_hash *h,
hash_operation func,
/* Initialise */
num_buckets = params->entries / params->bucket_entries;
- key = (uint8_t *) rte_zmalloc("hash key",
- params->key_len * sizeof(uint8_t), 16);
+ key = rte_zmalloc("hash key",
+ params->key_len * sizeof(uint8_t), 16);
if (key == NULL)
return -1;
- bucket_occupancies = (uint32_t *) rte_zmalloc("bucket occupancies",
- num_buckets * sizeof(uint32_t), 16);
+ bucket_occupancies = rte_calloc("bucket occupancies",
+ num_buckets, sizeof(uint32_t), 16);
if (bucket_occupancies == NULL) {
rte_free(key);
return -1;
diff --git a/app/test/test_mempool.c b/app/test/test_mempool.c
index 303d2b3..de85c9c 100644
--- a/app/test/test_mempool.c
+++ b/app/test/test_mempool.c
@@ -360,7 +360,7 @@ test_mempool_basic_ex(struct rte_mempool * mp)
if (mp == NULL)
return ret;
- obj = (void **)rte_zmalloc("test_mempool_basic_ex", (MEMPOOL_SIZE *
sizeof(void *)), 0);
+ obj = rte_calloc("test_mempool_basic_ex", MEMPOOL_SIZE , sizeof(void
*), 0);
if (obj == NULL) {
printf("test_mempool_basic_ex fail to rte_malloc\n");
return ret;
diff --git a/app/test/test_ring.c b/app/test/test_ring.c
index 2cd8e77..ce25329 100644
--- a/app/test/test_ring.c
+++ b/app/test/test_ring.c
@@ -1259,7 +1259,7 @@ test_ring_basic_ex(void)
struct rte_ring * rp;
void **obj = NULL;
- obj = (void **)rte_zmalloc("test_ring_basic_ex_malloc", (RING_SIZE *
sizeof(void *)), 0);
+ obj = rte_calloc("test_ring_basic_ex_malloc", RING_SIZE, sizeof(void
*), 0);
if (obj == NULL) {
printf("test_ring_basic_ex fail to rte_malloc\n");
goto fail_test;
--
2.1.4
[dpdk-dev] [PATCH 2/6] vhost_xen: remove unnecessary cast
Don't need to cast malloc family of functions since they return
void *.
Signed-off-by: Stephen Hemminger
---
examples/vhost_xen/vhost_monitor.c | 2 +-
examples/vhost_xen/xenstore_parse.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/examples/vhost_xen/vhost_monitor.c
b/examples/vhost_xen/vhost_monitor.c
index f683989..9d99962 100644
--- a/examples/vhost_xen/vhost_monitor.c
+++ b/examples/vhost_xen/vhost_monitor.c
@@ -138,7 +138,7 @@ add_xen_guest(int32_t dom_id)
if ((guest = get_xen_guest(dom_id)) != NULL)
return guest;
- guest = (struct xen_guest * )calloc(1, sizeof(struct xen_guest));
+ guest = calloc(1, sizeof(struct xen_guest));
if (guest) {
RTE_LOG(ERR, XENHOST, " %s: return newly created guest with %d
rings\n", __func__, guest->vring_num);
TAILQ_INSERT_TAIL(&guest_root, guest, next);
diff --git a/examples/vhost_xen/xenstore_parse.c
b/examples/vhost_xen/xenstore_parse.c
index 9441639..df191ac 100644
--- a/examples/vhost_xen/xenstore_parse.c
+++ b/examples/vhost_xen/xenstore_parse.c
@@ -248,8 +248,8 @@ parse_gntnode(int dom_id, char *path)
goto err;
}
- gntnode = (struct xen_gntnode *)calloc(1, sizeof(struct xen_gntnode));
- gnt = (struct xen_gnt *)calloc(gref_num, sizeof(struct xen_gnt));
+ gntnode = calloc(1, sizeof(struct xen_gntnode));
+ gnt = calloc(gref_num, sizeof(struct xen_gnt));
if (gnt == NULL || gntnode == NULL)
goto err;
--
2.1.4
[dpdk-dev] [PATCH 3/6] bsd: remove useless assignments
If variable is set in the next line, it doesn't need to be
initialized.
Signed-off-by: Stephen Hemminger
---
lib/librte_eal/bsdapp/eal/eal.c | 3 ++-
lib/librte_eal/bsdapp/eal/eal_pci.c | 2 +-
2 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/librte_eal/bsdapp/eal/eal.c b/lib/librte_eal/bsdapp/eal/eal.c
index 69f3c03..71ae33c 100644
--- a/lib/librte_eal/bsdapp/eal/eal.c
+++ b/lib/librte_eal/bsdapp/eal/eal.c
@@ -417,7 +417,8 @@ int rte_eal_has_hugepages(void)
int
rte_eal_iopl_init(void)
{
- int fd = -1;
+ int fd;
+
fd = open("/dev/io", O_RDWR);
if (fd < 0)
return -1;
diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c
b/lib/librte_eal/bsdapp/eal/eal_pci.c
index 74ecce7..d191323 100644
--- a/lib/librte_eal/bsdapp/eal/eal_pci.c
+++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
@@ -382,7 +382,7 @@ skipdev:
static int
pci_scan(void)
{
- int fd = -1;
+ int fd;
unsigned dev_count = 0;
struct pci_conf matches[16];
struct pci_conf_io conf_io = {
--
2.1.4
[dpdk-dev] [PATCH 4/6] enic: eliminate useless cast
Signed-off-by: Stephen Hemminger
---
lib/librte_pmd_enic/enic_clsf.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/lib/librte_pmd_enic/enic_clsf.c b/lib/librte_pmd_enic/enic_clsf.c
index 577a382..b61d625 100644
--- a/lib/librte_pmd_enic/enic_clsf.c
+++ b/lib/librte_pmd_enic/enic_clsf.c
@@ -121,9 +121,8 @@ int enic_fdir_add_fltr(struct enic *enic, struct
rte_fdir_filter *params,
enic->fdir.stats.f_add++;
return -ENOSPC;
}
- key = (struct enic_fdir_node *)rte_zmalloc(
- "enic_fdir_node",
- sizeof(struct enic_fdir_node), 0);
+ key = rte_zmalloc("enic_fdir_node",
+ sizeof(struct enic_fdir_node), 0);
if (!key) {
enic->fdir.stats.f_add++;
return -ENOMEM;
--
2.1.4
[dpdk-dev] [PATCH 5/6] eal: remove useless memset
The path variable is set via snprintf, and does not need to memset before that. Signed-off-by: Stephen Hemminger --- lib/librte_eal/linuxapp/eal/eal_hugepage_info.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/lib/librte_eal/linuxapp/eal/eal_hugepage_info.c b/lib/librte_eal/linuxapp/eal/eal_hugepage_info.c index 590cb56..8d29e06 100644 --- a/lib/librte_eal/linuxapp/eal/eal_hugepage_info.c +++ b/lib/librte_eal/linuxapp/eal/eal_hugepage_info.c @@ -84,8 +84,6 @@ get_num_hugepages(const char *subdir) else nr_hp_file = "free_hugepages"; - memset(path, 0, sizeof(path)); - snprintf(path, sizeof(path), "%s/%s/%s", sys_dir_path, subdir, nr_hp_file); -- 2.1.4
[dpdk-dev] [PATCH 6/6] examples: remove unneeded casts
*alloc() routines return void * and therefore cast is not needed.
Signed-off-by: Stephen Hemminger
---
examples/kni/main.c | 4 ++--
examples/l3fwd-acl/main.c | 4 ++--
examples/vhost/main.c | 7 ---
3 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/examples/kni/main.c b/examples/kni/main.c
index 45b96bc..2bff1e1 100644
--- a/examples/kni/main.c
+++ b/examples/kni/main.c
@@ -462,8 +462,8 @@ parse_config(const char *arg)
goto fail;
}
kni_port_params_array[port_id] =
- (struct kni_port_params*)rte_zmalloc("KNI_port_params",
- sizeof(struct kni_port_params), RTE_CACHE_LINE_SIZE);
+ rte_zmalloc("KNI_port_params",
+ sizeof(struct kni_port_params),
RTE_CACHE_LINE_SIZE);
kni_port_params_array[port_id]->port_id = port_id;
kni_port_params_array[port_id]->lcore_rx =
(uint8_t)int_fld[i++];
diff --git a/examples/l3fwd-acl/main.c b/examples/l3fwd-acl/main.c
index f1f7601..20e071a 100644
--- a/examples/l3fwd-acl/main.c
+++ b/examples/l3fwd-acl/main.c
@@ -1047,13 +1047,13 @@ add_rules(const char *rule_path,
fseek(fh, 0, SEEK_SET);
- acl_rules = (uint8_t *)calloc(acl_num, rule_size);
+ acl_rules = calloc(acl_num, rule_size);
if (NULL == acl_rules)
rte_exit(EXIT_FAILURE, "%s: failed to malloc memory\n",
__func__);
- route_rules = (uint8_t *)calloc(route_num, rule_size);
+ route_rules = calloc(route_num, rule_size);
if (NULL == route_rules)
rte_exit(EXIT_FAILURE, "%s: failed to malloc memory\n",
diff --git a/examples/vhost/main.c b/examples/vhost/main.c
index 3a35359..a96b19f 100644
--- a/examples/vhost/main.c
+++ b/examples/vhost/main.c
@@ -2592,9 +2592,10 @@ new_device (struct virtio_net *dev)
}
- vdev->regions_hpa = (struct virtio_memory_regions_hpa *)
rte_zmalloc("vhost hpa region",
- sizeof(struct virtio_memory_regions_hpa) *
vdev->nregions_hpa,
- RTE_CACHE_LINE_SIZE);
+ vdev->regions_hpa = rte_calloc("vhost hpa region",
+ sizeof(struct
virtio_memory_regions_hpa),
+ vdev->nregions_hpa,
+ RTE_CACHE_LINE_SIZE);
if (vdev->regions_hpa == NULL) {
RTE_LOG(ERR, VHOST_CONFIG, "Cannot allocate memory for
hpa region\n");
rte_free(vdev);
--
2.1.4
[dpdk-dev] [PATCH 1/2] enic: replace use of printf with log
Device driver should log via DPDK log, not to printf which is
sends to /dev/null in a daemon application.
Signed-off-by: Stephen Hemminger
---
lib/librte_pmd_enic/enic_compat.h | 11 +++
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/lib/librte_pmd_enic/enic_compat.h
b/lib/librte_pmd_enic/enic_compat.h
index b1af838..c3ab76e 100644
--- a/lib/librte_pmd_enic/enic_compat.h
+++ b/lib/librte_pmd_enic/enic_compat.h
@@ -75,10 +75,13 @@
#define kzalloc(size, flags) calloc(1, size)
#define kfree(x) free(x)
-#define dev_err(x, args...) printf("rte_enic_pmd : Error - " args)
-#define dev_info(x, args...) printf("rte_enic_pmd: Info - " args)
-#define dev_warning(x, args...) printf("rte_enic_pmd: Warning - " args)
-#define dev_trace(x, args...) printf("rte_enic_pmd: Trace - " args)
+#define dev_printk(level, fmt, args...)\
+ RTE_LOG(level, PMD, "rte_enic_pmd:" fmt, ## args)
+
+#define dev_err(x, args...) dev_printk(ERR, args)
+#define dev_info(x, args...) dev_printk(INFO, args)
+#define dev_warning(x, args...) dev_printk(WARNING, args)
+#define dev_debug(x, args...) dev_printk(DEBUG, args)
#define __le16 u16
#define __le32 u32
--
2.1.4
[dpdk-dev] [PATCH 2/2] enic: change probe log message level
Drivers should be silent on boot. Signed-off-by: Stephen Hemminger --- lib/librte_pmd_enic/enic_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/librte_pmd_enic/enic_main.c b/lib/librte_pmd_enic/enic_main.c index 48fdca2..c66f139 100644 --- a/lib/librte_pmd_enic/enic_main.c +++ b/lib/librte_pmd_enic/enic_main.c @@ -1046,7 +1046,7 @@ int enic_probe(struct enic *enic) struct rte_pci_device *pdev = enic->pdev; int err = -1; - dev_info(enic, " Initializing ENIC PMD version %s\n", DRV_VERSION); + dev_debug(enic, " Initializing ENIC PMD version %s\n", DRV_VERSION); enic->bar0.vaddr = (void *)pdev->mem_resource[0].addr; enic->bar0.len = pdev->mem_resource[0].len; -- 2.1.4
[dpdk-dev] [PATCH 1/2] enic: replace use of printf with log
On Sat, Feb 14, 2015 at 10:32:58AM -0500, Stephen Hemminger wrote:
> Device driver should log via DPDK log, not to printf which is
> sends to /dev/null in a daemon application.
>
> Signed-off-by: Stephen Hemminger
> ---
> lib/librte_pmd_enic/enic_compat.h | 11 +++
> 1 file changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/lib/librte_pmd_enic/enic_compat.h
> b/lib/librte_pmd_enic/enic_compat.h
> index b1af838..c3ab76e 100644
> --- a/lib/librte_pmd_enic/enic_compat.h
> +++ b/lib/librte_pmd_enic/enic_compat.h
> @@ -75,10 +75,13 @@
> #define kzalloc(size, flags) calloc(1, size)
> #define kfree(x) free(x)
>
> -#define dev_err(x, args...) printf("rte_enic_pmd : Error - " args)
> -#define dev_info(x, args...) printf("rte_enic_pmd: Info - " args)
> -#define dev_warning(x, args...) printf("rte_enic_pmd: Warning - " args)
> -#define dev_trace(x, args...) printf("rte_enic_pmd: Trace - " args)
> +#define dev_printk(level, fmt, args...) \
> + RTE_LOG(level, PMD, "rte_enic_pmd:" fmt, ## args)
> +
> +#define dev_err(x, args...) dev_printk(ERR, args)
> +#define dev_info(x, args...) dev_printk(INFO, args)
> +#define dev_warning(x, args...) dev_printk(WARNING, args)
> +#define dev_debug(x, args...) dev_printk(DEBUG, args)
>
> #define __le16 u16
> #define __le32 u32
> --
> 2.1.4
>
>
Series
Acked-by: Neil Horman
[dpdk-dev] [PATCH 1/4] xen: allow choosing dom0 support at runtime
The previous code would only allow building library and application
so that it ran on Xen DOM0 or not on DOM0. This changes that to
a runtime flag.
Signed-off-by: Stephen Hemminger
---
lib/librte_eal/common/include/rte_memory.h | 4 +++
lib/librte_eal/linuxapp/eal/eal_memory.c | 7
lib/librte_ether/rte_ethdev.c | 22
lib/librte_ether/rte_ethdev.h | 23
lib/librte_mempool/rte_mempool.c | 26 +++---
lib/librte_pmd_e1000/em_rxtx.c | 30 +++-
lib/librte_pmd_e1000/igb_rxtx.c| 52 +--
lib/librte_pmd_ixgbe/ixgbe_rxtx.c | 58 +-
8 files changed, 108 insertions(+), 114 deletions(-)
diff --git a/lib/librte_eal/common/include/rte_memory.h
b/lib/librte_eal/common/include/rte_memory.h
index 7f8103f..ab6c1ff 100644
--- a/lib/librte_eal/common/include/rte_memory.h
+++ b/lib/librte_eal/common/include/rte_memory.h
@@ -176,6 +176,10 @@ unsigned rte_memory_get_nchannel(void);
unsigned rte_memory_get_nrank(void);
#ifdef RTE_LIBRTE_XEN_DOM0
+
+/**< Internal use only - should DOM0 memory mapping be used */
+extern int is_xen_dom0_supported(void);
+
/**
* Return the physical address of elt, which is an element of the pool mp.
*
diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c
b/lib/librte_eal/linuxapp/eal/eal_memory.c
index a67a1b0..4afda2a 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -98,6 +98,13 @@
#include "eal_filesystem.h"
#include "eal_hugepages.h"
+#ifdef RTE_LIBRTE_XEN_DOM0
+int is_xen_dom0_supported(void)
+{
+ return internal_config.xen_dom0_support;
+}
+#endif
+
/**
* @file
* Huge page mapping under linux
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index ea3a1fb..457e0bc 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -2825,6 +2825,27 @@ _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
}
rte_spinlock_unlock(&rte_eth_dev_cb_lock);
}
+
+const struct rte_memzone *
+rte_eth_dma_zone_reserve(const struct rte_eth_dev *dev, const char *ring_name,
+uint16_t queue_id, size_t size, unsigned align,
+int socket_id)
+{
+ char z_name[RTE_MEMZONE_NAMESIZE];
+ const struct rte_memzone *mz;
+
+ snprintf(z_name, sizeof(z_name), "%s_%s_%d_%d",
+dev->driver->pci_drv.name, ring_name,
+dev->data->port_id, queue_id);
+
+ mz = rte_memzone_lookup(z_name);
+ if (mz)
+ return mz;
+
+ return rte_memzone_reserve_bounded(z_name, size,
+ socket_id, 0, align, RTE_PGSIZE_2M);
+}
+
#ifdef RTE_NIC_BYPASS
int rte_eth_dev_bypass_init(uint8_t port_id)
{
@@ -3003,6 +3024,7 @@ rte_eth_dev_bypass_wd_reset(uint8_t port_id)
(*dev->dev_ops->bypass_wd_reset)(dev);
return 0;
}
+
#endif
int
diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index 1200c1c..747acb5 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -3664,6 +3664,29 @@ int rte_eth_dev_filter_supported(uint8_t port_id, enum
rte_filter_type filter_ty
int rte_eth_dev_filter_ctrl(uint8_t port_id, enum rte_filter_type filter_type,
enum rte_filter_op filter_op, void *arg);
+/**
+ * Create memzone for HW rings.
+ * malloc can't be used as the physical address is needed.
+ * If the memzone is already created, then this function returns a ptr
+ * to the old one.
+ *
+ * @param eth_dev
+ * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
+ * @param name
+ * The name of the memory zone
+ * @param queue_id
+ * The index of the queue to add to name
+ * @param size
+ * The sizeof of the memory area
+ * @param align
+ * Alignment for resulting memzone. Must be a power of 2.
+ * @param socket_id
+ * The *socket_id* argument is the socket identifier in case of NUMA.
+ */
+const struct rte_memzone *
+rte_eth_dma_zone_reserve(const struct rte_eth_dev *eth_dev, const char *name,
+uint16_t queue_id, size_t size,
+unsigned align, int socket_id);
#ifdef __cplusplus
}
#endif
diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index 4cf6c25..5056a4f 100644
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -372,19 +372,21 @@ rte_mempool_create(const char *name, unsigned n, unsigned
elt_size,
int socket_id, unsigned flags)
{
#ifdef RTE_LIBRTE_XEN_DOM0
- return (rte_dom0_mempool_create(name, n, elt_size,
- cache_size, private_data_size,
- mp_init, mp_init_arg,
- obj_init, obj_init_arg,
- socket_id, flags));
-#else
- return (rte_mempool_xmem_create(name, n, elt_size,
-
[dpdk-dev] [PATCH 2/4] xen: add phys-addr command line argument
Allow overriding default Xen DOM0 behavior to
use physical addresses insted of mfn.
Signed-off-by: Stephen Hemminger
---
lib/librte_eal/common/eal_common_options.c | 5 +
lib/librte_eal/common/eal_internal_cfg.h | 1 +
lib/librte_eal/common/eal_options.h| 2 ++
lib/librte_eal/common/include/rte_memory.h | 3 +++
lib/librte_eal/linuxapp/eal/eal_memory.c | 5 +
lib/librte_mempool/rte_dom0_mempool.c | 10 --
6 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/lib/librte_eal/common/eal_common_options.c
b/lib/librte_eal/common/eal_common_options.c
index 67e02dc..1742364 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -83,6 +83,7 @@ eal_long_options[] = {
{OPT_LOG_LEVEL, 1, NULL, OPT_LOG_LEVEL_NUM},
{OPT_BASE_VIRTADDR, 1, 0, OPT_BASE_VIRTADDR_NUM},
{OPT_XEN_DOM0, 0, 0, OPT_XEN_DOM0_NUM},
+ {OPT_XEN_PHYS_ADDR, 0, 0, OPT_XEN_PHYS_ADDR_NUM},
{OPT_CREATE_UIO_DEV, 1, NULL, OPT_CREATE_UIO_DEV_NUM},
{OPT_VFIO_INTR, 1, NULL, OPT_VFIO_INTR_NUM},
{0, 0, 0, 0}
@@ -491,6 +492,10 @@ eal_parse_common_option(int opt, const char *optarg,
}
conf->log_level = log;
break;
+
+ case OPT_XEN_PHYS_ADDR_NUM:
+ conf->xen_phys_addr_support = 1;
+ break;
}
/* don't know what to do, leave this to caller */
diff --git a/lib/librte_eal/common/eal_internal_cfg.h
b/lib/librte_eal/common/eal_internal_cfg.h
index e2ecb0d..41b4169 100644
--- a/lib/librte_eal/common/eal_internal_cfg.h
+++ b/lib/librte_eal/common/eal_internal_cfg.h
@@ -65,6 +65,7 @@ struct internal_config {
volatile unsigned force_nrank;/**< force number of ranks */
volatile unsigned no_hugetlbfs; /**< true to disable hugetlbfs */
volatile unsigned xen_dom0_support; /**< support app running on Xen
Dom0*/
+ volatile unsigned xen_phys_addr_support; /**< support phys addr */
volatile unsigned no_pci; /**< true to disable PCI */
volatile unsigned no_hpet;/**< true to disable HPET */
volatile unsigned vmware_tsc_map; /**< true to use VMware TSC mapping
diff --git a/lib/librte_eal/common/eal_options.h
b/lib/librte_eal/common/eal_options.h
index e476f8d..8aee959 100644
--- a/lib/librte_eal/common/eal_options.h
+++ b/lib/librte_eal/common/eal_options.h
@@ -73,6 +73,8 @@ enum {
OPT_BASE_VIRTADDR_NUM,
#define OPT_XEN_DOM0"xen-dom0"
OPT_XEN_DOM0_NUM,
+#define OPT_XEN_PHYS_ADDR "xen-phys-addr"
+ OPT_XEN_PHYS_ADDR_NUM,
#define OPT_CREATE_UIO_DEV "create-uio-dev"
OPT_CREATE_UIO_DEV_NUM,
#define OPT_VFIO_INTR"vfio-intr"
diff --git a/lib/librte_eal/common/include/rte_memory.h
b/lib/librte_eal/common/include/rte_memory.h
index ab6c1ff..c3b8a98 100644
--- a/lib/librte_eal/common/include/rte_memory.h
+++ b/lib/librte_eal/common/include/rte_memory.h
@@ -180,6 +180,9 @@ unsigned rte_memory_get_nrank(void);
/**< Internal use only - should DOM0 memory mapping be used */
extern int is_xen_dom0_supported(void);
+/**< Internal use only - should DOM0 use physical addresses insted of mfn */
+extern int is_xen_phys_addr_supported(void);
+
/**
* Return the physical address of elt, which is an element of the pool mp.
*
diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c
b/lib/librte_eal/linuxapp/eal/eal_memory.c
index 4afda2a..a759ac9 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -103,6 +103,11 @@ int is_xen_dom0_supported(void)
{
return internal_config.xen_dom0_support;
}
+
+int is_xen_phys_addr_supported(void)
+{
+ return internal_config.xen_phys_addr_support;
+}
#endif
/**
diff --git a/lib/librte_mempool/rte_dom0_mempool.c
b/lib/librte_mempool/rte_dom0_mempool.c
index 9ec68fb..ab35826 100644
--- a/lib/librte_mempool/rte_dom0_mempool.c
+++ b/lib/librte_mempool/rte_dom0_mempool.c
@@ -74,8 +74,14 @@ get_phys_map(void *va, phys_addr_t pa[], uint32_t pg_num,
virt_addr =(uintptr_t) mcfg->memseg[memseg_id].addr;
for (i = 0; i != pg_num; i++) {
-mfn_id = ((uintptr_t)va + i * pg_sz - virt_addr) / RTE_PGSIZE_2M;
-pa[i] = mcfg->memseg[memseg_id].mfn[mfn_id] * page_size;
+ if (!is_xen_phys_addr_supported()) {
+ mfn_id = ((uintptr_t)va + i * pg_sz -
+ virt_addr) / RTE_PGSIZE_2M;
+ pa[i] = mcfg->memseg[memseg_id].mfn[mfn_id] * page_size;
+ } else {
+ pa[i] = mcfg->memseg[memseg_id].phys_addr + i * pg_sz +
+ (uintptr_t)va - virt_addr;
+ }
}
}
--
2.1.4
[dpdk-dev] [PATCH 3/4] xen: add uio driver
New uio helper kernel driver for use by Xen netfront UIO poll mode driver. Signed-off-by: Stephen Hemminger --- lib/librte_eal/linuxapp/Makefile | 3 + lib/librte_eal/linuxapp/xen_uio/Makefile | 55 ++ lib/librte_eal/linuxapp/xen_uio/xen_uio.c | 837 ++ 3 files changed, 895 insertions(+) create mode 100644 lib/librte_eal/linuxapp/xen_uio/Makefile create mode 100644 lib/librte_eal/linuxapp/xen_uio/xen_uio.c diff --git a/lib/librte_eal/linuxapp/Makefile b/lib/librte_eal/linuxapp/Makefile index 8fcfdf6..d3893e5 100644 --- a/lib/librte_eal/linuxapp/Makefile +++ b/lib/librte_eal/linuxapp/Makefile @@ -41,5 +41,8 @@ endif ifeq ($(CONFIG_RTE_LIBRTE_XEN_DOM0),y) DIRS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += xen_dom0 endif +ifeq ($(CONFIG_RTE_LIBRTE_XEN_PMD),y) +DIRS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += xen_uio +endif include $(RTE_SDK)/mk/rte.subdir.mk diff --git a/lib/librte_eal/linuxapp/xen_uio/Makefile b/lib/librte_eal/linuxapp/xen_uio/Makefile new file mode 100644 index 000..25a9f35 --- /dev/null +++ b/lib/librte_eal/linuxapp/xen_uio/Makefile @@ -0,0 +1,55 @@ +# BSD LICENSE +# +# Copyright (c) 2013-2015 Brocade Communications Systems, Inc. +# All rights reserved. +# +# 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 Intel Corporation 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 $(RTE_SDK)/mk/rte.vars.mk + +# +# module name and path +# +MODULE = xen_uio +MODULE_PATH = drivers/net/xen_uio + +# +# CFLAGS +# +MODULE_CFLAGS += -I$(SRCDIR) --param max-inline-insns-single=100 +MODULE_CFLAGS += -I$(RTE_OUTPUT)/include +MODULE_CFLAGS += -Winline -Wall -Werror +MODULE_CFLAGS += -include $(RTE_OUTPUT)/include/rte_config.h + +# +# all source are stored in SRCS-y +# +SRCS-y := xen_uio.c + + +include $(RTE_SDK)/mk/rte.module.mk diff --git a/lib/librte_eal/linuxapp/xen_uio/xen_uio.c b/lib/librte_eal/linuxapp/xen_uio/xen_uio.c new file mode 100644 index 000..b25b1f3 --- /dev/null +++ b/lib/librte_eal/linuxapp/xen_uio/xen_uio.c @@ -0,0 +1,837 @@ +/* + * Virtual network driver for conversing with remote driver backends. + * + * Copyright (c) 2002-2005, K A Fraser + * Copyright (c) 2005, XenSource Ltd + * Copyright (c) 2013-2015 Brocade Communications Systems, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation; or, when distributed + * separately from the Linux kernel or incorporated into other + * software packages, subject to the following license: + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this source file (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, copy, modify, + * merge, publish, distribute, sublicense, and/or sell copies of the Software, + * and to permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
[dpdk-dev] [PATCH 4/4] xen: net-front poll mode driver
This driver implements DPDK driver that has the same functionality
as net-front driver in Linux kernel.
Signed-off-by: Stephen Hemminger
---
config/common_linuxapp| 6 +
lib/Makefile | 1 +
lib/librte_eal/common/eal_private.h | 7 +
lib/librte_eal/linuxapp/eal/eal.c | 8 +
lib/librte_pmd_xen/Makefile | 30 ++
lib/librte_pmd_xen/virt_dev.c | 400 +
lib/librte_pmd_xen/virt_dev.h | 30 ++
lib/librte_pmd_xen/xen_adapter_info.h | 64
lib/librte_pmd_xen/xen_dev.c | 369 +++
lib/librte_pmd_xen/xen_dev.h | 96 ++
lib/librte_pmd_xen/xen_logs.h | 23 ++
lib/librte_pmd_xen/xen_rxtx.c | 546 ++
lib/librte_pmd_xen/xen_rxtx.h | 110 +++
mk/rte.app.mk | 4 +
14 files changed, 1694 insertions(+)
create mode 100644 lib/librte_pmd_xen/Makefile
create mode 100644 lib/librte_pmd_xen/virt_dev.c
create mode 100644 lib/librte_pmd_xen/virt_dev.h
create mode 100644 lib/librte_pmd_xen/xen_adapter_info.h
create mode 100644 lib/librte_pmd_xen/xen_dev.c
create mode 100644 lib/librte_pmd_xen/xen_dev.h
create mode 100644 lib/librte_pmd_xen/xen_logs.h
create mode 100644 lib/librte_pmd_xen/xen_rxtx.c
create mode 100644 lib/librte_pmd_xen/xen_rxtx.h
diff --git a/config/common_linuxapp b/config/common_linuxapp
index d428f84..668fc8d 100644
--- a/config/common_linuxapp
+++ b/config/common_linuxapp
@@ -232,6 +232,12 @@ CONFIG_RTE_LIBRTE_PMD_AF_PACKET=y
CONFIG_RTE_LIBRTE_PMD_XENVIRT=n
#
+# Compile XEN net-front PMD driver
+#
+CONFIG_RTE_LIBRTE_XEN_PMD=n
+CONFIG_RTE_LIBRTE_XEN_DEBUG_INIT=n
+
+#
# Do prefetch of packet data within PMD driver receive function
#
CONFIG_RTE_PMD_PACKET_PREFETCH=y
diff --git a/lib/Makefile b/lib/Makefile
index d617d81..f405e40 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -52,6 +52,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET) +=
librte_pmd_af_packet
DIRS-$(CONFIG_RTE_LIBRTE_VIRTIO_PMD) += librte_pmd_virtio
DIRS-$(CONFIG_RTE_LIBRTE_VMXNET3_PMD) += librte_pmd_vmxnet3
DIRS-$(CONFIG_RTE_LIBRTE_PMD_XENVIRT) += librte_pmd_xenvirt
+DIRS-$(CONFIG_RTE_LIBRTE_XEN_PMD) += librte_pmd_xen
DIRS-$(CONFIG_RTE_LIBRTE_VHOST) += librte_vhost
DIRS-$(CONFIG_RTE_LIBRTE_HASH) += librte_hash
DIRS-$(CONFIG_RTE_LIBRTE_LPM) += librte_lpm
diff --git a/lib/librte_eal/common/eal_private.h
b/lib/librte_eal/common/eal_private.h
index 159cd66..0614607 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -128,6 +128,13 @@ int rte_eal_log_init(const char *id, int facility);
*/
int rte_eal_pci_init(void);
+#ifdef RTE_LIBRTE_XEN_PMD
+/**
+ * Init of the xen driver
+ */
+extern int rte_xen_pmd_init(void);
+#endif
+
#ifdef RTE_LIBRTE_IVSHMEM
/**
* Init the memory from IVSHMEM devices
diff --git a/lib/librte_eal/linuxapp/eal/eal.c
b/lib/librte_eal/linuxapp/eal/eal.c
index f99e158..4e60b7c 100644
--- a/lib/librte_eal/linuxapp/eal/eal.c
+++ b/lib/librte_eal/linuxapp/eal/eal.c
@@ -760,6 +760,14 @@ rte_eal_init(int argc, char **argv)
rte_panic("Cannot init IVSHMEM\n");
#endif
+#ifdef RTE_LIBRTE_XEN_PMD
+ ret = rte_xen_pmd_init();
+ if (ret != 0) {
+ RTE_LOG(ERR, PMD, "Cannot init xen PMD\n");
+ return ret;
+ }
+#endif /* RTE_LIBRTE_XEN_PMD */
+
if (rte_eal_memory_init() < 0)
rte_panic("Cannot init memory\n");
diff --git a/lib/librte_pmd_xen/Makefile b/lib/librte_pmd_xen/Makefile
new file mode 100644
index 000..d294d03
--- /dev/null
+++ b/lib/librte_pmd_xen/Makefile
@@ -0,0 +1,30 @@
+#
+# Copyright (c) 2013-2015 Brocade Communications Systems, Inc.
+# All rights reserved.
+#
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_xen.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+VPATH += $(RTE_SDK)/lib/librte_pmd_xen
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_XEN_PMD) += virt_dev.c
+SRCS-$(CONFIG_RTE_LIBRTE_XEN_PMD) += xen_dev.c
+SRCS-$(CONFIG_RTE_LIBRTE_XEN_PMD) += xen_rxtx.c
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_XEN_PMD) += lib/librte_eal lib/librte_ether
+DEPDIRS-$(CONFIG_RTE_LIBRTE_XEN_PMD) += lib/librte_mempool lib/librte_mbuf
+DEPDIRS-$(CONFIG_RTE_LIBRTE_XEN_PMD) += lib/librte_net lib/librte_malloc
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/lib/librte_pmd_xen/virt_dev.c b/lib/librte_pmd_xen/virt_dev.c
new file mode 100644
index 000..f824977
--- /dev/null
+++ b/lib/librte_pmd_xen/virt_dev.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright (c) 2013-2015 Brocade Communications Systems, Inc.
+ * All rights reserved.
+ */
+
+#include
+#include
+#include
+#include
+
+#include
+#include
+
+#include
+#include
+
+#include "virt_dev.h"
+
+struct uio_map {
+ void *addr;
+ uint64_t offset;
+ uint64_t size;
+ uint64_t phaddr;
+};
+
+struct uio_resource {
+
[dpdk-dev] [PATCH] Add Q variable to external builds to be quite
Signed-off-by: Keith Wiles --- mk/rte.extvars.mk | 4 1 file changed, 4 insertions(+) diff --git a/mk/rte.extvars.mk b/mk/rte.extvars.mk index 3e5a990..83a5721 100644 --- a/mk/rte.extvars.mk +++ b/mk/rte.extvars.mk @@ -66,6 +66,10 @@ endif RTE_OUTPUT ?= $(RTE_SRCDIR)/build export RTE_OUTPUT +# define Q to '@' or not. $(Q) is used to prefix all shell commands to +# be executed silently. +Q=@ + # if we are building an external application, include SDK # configuration and include project configuration if any include $(RTE_SDK_BIN)/.config -- 2.3.0
[dpdk-dev] [PATCH] Add support to read target/generic/rte.vars.mk file for external builds
The external build of applications does not import the target/generic/rte.vars.mk file, which is needed for locating DPDK headers and libraries. Signed-off-by: Keith Wiles --- mk/rte.extvars.mk | 7 +++ 1 file changed, 7 insertions(+) diff --git a/mk/rte.extvars.mk b/mk/rte.extvars.mk index 49fc9f2..2811ff9 100644 --- a/mk/rte.extvars.mk +++ b/mk/rte.extvars.mk @@ -82,3 +82,10 @@ RTE_MACHINE := $(CONFIG_RTE_MACHINE:"%"=%) RTE_EXEC_ENV := $(CONFIG_RTE_EXEC_ENV:"%"=%) RTE_TOOLCHAIN := $(CONFIG_RTE_TOOLCHAIN:"%"=%) RTE_MK_EXT := $(CONFIG_RTE_MK_EXT:"%"=%) + +ifneq ($(wildcard $(RTE_SDK)/mk/target/$(RTE_TARGET)/rte.vars.mk),) +include $(RTE_SDK)/mk/target/$(RTE_TARGET)/rte.vars.mk +else +include $(RTE_SDK)/mk/target/generic/rte.vars.mk +endif + -- 2.3.0
[dpdk-dev] [PATCH 1/4] xen: allow choosing dom0 support at runtime
On Sat, Feb 14, 2015 at 01:06:45PM -0500, Stephen Hemminger wrote:
> The previous code would only allow building library and application
> so that it ran on Xen DOM0 or not on DOM0. This changes that to
> a runtime flag.
>
> Signed-off-by: Stephen Hemminger
> ---
> lib/librte_eal/common/include/rte_memory.h | 4 +++
> lib/librte_eal/linuxapp/eal/eal_memory.c | 7
> lib/librte_ether/rte_ethdev.c | 22
> lib/librte_ether/rte_ethdev.h | 23
> lib/librte_mempool/rte_mempool.c | 26 +++---
> lib/librte_pmd_e1000/em_rxtx.c | 30 +++-
> lib/librte_pmd_e1000/igb_rxtx.c| 52 +--
> lib/librte_pmd_ixgbe/ixgbe_rxtx.c | 58
> +-
> 8 files changed, 108 insertions(+), 114 deletions(-)
>
> diff --git a/lib/librte_eal/common/include/rte_memory.h
> b/lib/librte_eal/common/include/rte_memory.h
> index 7f8103f..ab6c1ff 100644
> --- a/lib/librte_eal/common/include/rte_memory.h
> +++ b/lib/librte_eal/common/include/rte_memory.h
> @@ -176,6 +176,10 @@ unsigned rte_memory_get_nchannel(void);
> unsigned rte_memory_get_nrank(void);
>
> #ifdef RTE_LIBRTE_XEN_DOM0
> +
> +/**< Internal use only - should DOM0 memory mapping be used */
> +extern int is_xen_dom0_supported(void);
> +
> /**
> * Return the physical address of elt, which is an element of the pool mp.
> *
> diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c
> b/lib/librte_eal/linuxapp/eal/eal_memory.c
> index a67a1b0..4afda2a 100644
> --- a/lib/librte_eal/linuxapp/eal/eal_memory.c
> +++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
> @@ -98,6 +98,13 @@
> #include "eal_filesystem.h"
> #include "eal_hugepages.h"
>
> +#ifdef RTE_LIBRTE_XEN_DOM0
> +int is_xen_dom0_supported(void)
> +{
> + return internal_config.xen_dom0_support;
> +}
> +#endif
> +
> /**
> * @file
> * Huge page mapping under linux
> diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
> index ea3a1fb..457e0bc 100644
> --- a/lib/librte_ether/rte_ethdev.c
> +++ b/lib/librte_ether/rte_ethdev.c
> @@ -2825,6 +2825,27 @@ _rte_eth_dev_callback_process(struct rte_eth_dev *dev,
> }
> rte_spinlock_unlock(&rte_eth_dev_cb_lock);
> }
> +
> +const struct rte_memzone *
> +rte_eth_dma_zone_reserve(const struct rte_eth_dev *dev, const char
> *ring_name,
> + uint16_t queue_id, size_t size, unsigned align,
> + int socket_id)
> +{
> + char z_name[RTE_MEMZONE_NAMESIZE];
> + const struct rte_memzone *mz;
> +
> + snprintf(z_name, sizeof(z_name), "%s_%s_%d_%d",
> + dev->driver->pci_drv.name, ring_name,
> + dev->data->port_id, queue_id);
> +
> + mz = rte_memzone_lookup(z_name);
> + if (mz)
> + return mz;
> +
> + return rte_memzone_reserve_bounded(z_name, size,
> +socket_id, 0, align, RTE_PGSIZE_2M);
> +}
> +
> #ifdef RTE_NIC_BYPASS
> int rte_eth_dev_bypass_init(uint8_t port_id)
> {
> @@ -3003,6 +3024,7 @@ rte_eth_dev_bypass_wd_reset(uint8_t port_id)
> (*dev->dev_ops->bypass_wd_reset)(dev);
> return 0;
> }
> +
Nit: I think you meant to remove that space.
> #endif
>
> int
> diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
> index 1200c1c..747acb5 100644
> --- a/lib/librte_ether/rte_ethdev.h
> +++ b/lib/librte_ether/rte_ethdev.h
> @@ -3664,6 +3664,29 @@ int rte_eth_dev_filter_supported(uint8_t port_id, enum
> rte_filter_type filter_ty
> int rte_eth_dev_filter_ctrl(uint8_t port_id, enum rte_filter_type
> filter_type,
> enum rte_filter_op filter_op, void *arg);
>
> +/**
> + * Create memzone for HW rings.
> + * malloc can't be used as the physical address is needed.
> + * If the memzone is already created, then this function returns a ptr
> + * to the old one.
> + *
> + * @param eth_dev
> + * The *eth_dev* pointer is the address of the *rte_eth_dev* structure
> + * @param name
> + * The name of the memory zone
> + * @param queue_id
> + * The index of the queue to add to name
> + * @param size
> + * The sizeof of the memory area
> + * @param align
> + * Alignment for resulting memzone. Must be a power of 2.
> + * @param socket_id
> + * The *socket_id* argument is the socket identifier in case of NUMA.
> + */
> +const struct rte_memzone *
> +rte_eth_dma_zone_reserve(const struct rte_eth_dev *eth_dev, const char *name,
> + uint16_t queue_id, size_t size,
> + unsigned align, int socket_id);
I think this is an exported funciton right? It needs to be added to the version
map.
neil
[dpdk-dev] [PATCH 4/4] xen: net-front poll mode driver
On Sat, Feb 14, 2015 at 01:06:48PM -0500, Stephen Hemminger wrote:
> This driver implements DPDK driver that has the same functionality
> as net-front driver in Linux kernel.
>
> Signed-off-by: Stephen Hemminger
> ---
> config/common_linuxapp| 6 +
> lib/Makefile | 1 +
> lib/librte_eal/common/eal_private.h | 7 +
> lib/librte_eal/linuxapp/eal/eal.c | 8 +
> lib/librte_pmd_xen/Makefile | 30 ++
> lib/librte_pmd_xen/virt_dev.c | 400 +
> lib/librte_pmd_xen/virt_dev.h | 30 ++
> lib/librte_pmd_xen/xen_adapter_info.h | 64
> lib/librte_pmd_xen/xen_dev.c | 369 +++
> lib/librte_pmd_xen/xen_dev.h | 96 ++
> lib/librte_pmd_xen/xen_logs.h | 23 ++
> lib/librte_pmd_xen/xen_rxtx.c | 546
> ++
> lib/librte_pmd_xen/xen_rxtx.h | 110 +++
> mk/rte.app.mk | 4 +
> 14 files changed, 1694 insertions(+)
> create mode 100644 lib/librte_pmd_xen/Makefile
> create mode 100644 lib/librte_pmd_xen/virt_dev.c
> create mode 100644 lib/librte_pmd_xen/virt_dev.h
> create mode 100644 lib/librte_pmd_xen/xen_adapter_info.h
> create mode 100644 lib/librte_pmd_xen/xen_dev.c
> create mode 100644 lib/librte_pmd_xen/xen_dev.h
> create mode 100644 lib/librte_pmd_xen/xen_logs.h
> create mode 100644 lib/librte_pmd_xen/xen_rxtx.c
> create mode 100644 lib/librte_pmd_xen/xen_rxtx.h
>
> +
> +int
> +rte_xen_pmd_init(void)
> +{
> + PMD_INIT_FUNC_TRACE();
> +
> + xen_evt_fd = open("/dev/"XEN_PMD_UIO_NAME, O_RDWR);
> +
> + if (xen_evt_fd == -1) {
> + if (errno != ENOENT)
> + PMD_INIT_LOG(ERR, "cannot open event device %s",
> + "/dev/"XEN_PMD_UIO_NAME);
> + return 0;
> + }
> +
> + return virt_eth_driver_register(&rte_xen_pmd);
> +}
It looks like you've created a new method of registering a pmd here? Why not
use the existing REGISTER_PMD_DRIVER macro? It seems like this method will
break the DSO build.
Neil
>
[dpdk-dev] Explanation of the QoS offset values used in the QoS scheduler example app.
Hi everyone,
I am looking at this portion of the code in the app_thread.c file of the
QoS scheduler example application:
/*
* QoS parameters are encoded as follows:
* Outer VLAN ID defines subport
* Inner VLAN ID defines pipe
* Destination IP 0.0.XXX.0 defines traffic class
* Destination IP host (0.0.0.XXX) defines queue
* Values below define offset to each field from start of frame
*/
#define SUBPORT_OFFSET 7
#define PIPE_OFFSET 9
#define TC_OFFSET 20
#define QUEUE_OFFSET 20
#define COLOR_OFFSET 19
static inline int get_pkt_sched(struct rte_mbuf *m, uint32_t *subport,
uint32_t *pipe, uint32_t *traffic_class, uint32_t *queue, uint32_t *color)
{
uint16_t *pdata = rte_pktmbuf_mtod(m, uint16_t *);
*subport = (rte_be_to_cpu_16(pdata[SUBPORT_OFFSET]) & 0x0FFF) &
(port_params.n_subports_per_port - 1); /* Outer VLAN ID*/
*pipe = (rte_be_to_cpu_16(pdata[PIPE_OFFSET]) & 0x0FFF) &
(port_params.n_pipes_per_subport - 1); /* Inner VLAN ID */
*traffic_class = (pdata[QUEUE_OFFSET] & 0x0F) &
(RTE_SCHED_TRAFFIC_CLASSES_PER_PIPE - 1); /* Destination IP */
*queue = ((pdata[QUEUE_OFFSET] >> 8) & 0x0F) &
(RTE_SCHED_QUEUES_PER_TRAFFIC_CLASS - 1) ; /* Destination IP */
*color = pdata[COLOR_OFFSET] & 0x03; /* Destination IP */
return 0;
}
The offset values do not make sense to me. According to the programmer
guide, the queue selection is SVID/CVID/TC/QID based. And those offset seem
off in this case. Is this because it is assuming that the packet is being
altered before it gets to this stage ?
Can anyone provide a better explanation or at least the reason behind
choosing those offset values shown above.
Thanks.
