[dpdk-dev] [PATCH] eal: Clean up export of per_lcore__socket_id
Liang, Cunming
cunming.liang at intel.com
Thu Feb 26 00:54:51 CET 2015
Hi Neil,
Thanks for the cleanup.
Does it better moving rte_socket_id() to eal_common_thread.c ?
As it simply returns _socket_id, it's not necessary to have two copy in both linux and bsd.
-Cunming
> -----Original Message-----
> From: Neil Horman [mailto:nhorman at tuxdriver.com]
> Sent: Wednesday, February 25, 2015 10:34 PM
> To: dev at dpdk.org
> Cc: thomas.monjalon at 6wind.com; Liang, Cunming; Neil Horman
> Subject: [PATCH] eal: Clean up export of per_lcore__socket_id
>
> Theres no need to export this variable. Its set and queried from an API call
> that doesn't exist in the hot path. Instead just export the rte_socket_id
> symbol and make the variable private to protect it from type changes. We should
> do this with the other exported variables too, but I think its too late in the
> release cycle to do that.
>
> tested using distributor_autotest (which uses rte_socket_id), successfully.
> Only tested on linux, as I don't currently have a bsd system spun up, but the
> changes are symmetric, and should be fine
>
> Signed-off-by: Neil Horman <nhorman at tuxdriver.com>
> ---
> lib/librte_eal/bsdapp/eal/eal_thread.c | 5 +++++
> lib/librte_eal/bsdapp/eal/rte_eal_version.map | 2 +-
> lib/librte_eal/common/eal_common_thread.c | 2 ++
> lib/librte_eal/common/include/rte_lcore.h | 7 +------
> lib/librte_eal/linuxapp/eal/eal_thread.c | 5 +++++
> lib/librte_eal/linuxapp/eal/rte_eal_version.map | 2 +-
> 6 files changed, 15 insertions(+), 8 deletions(-)
>
> diff --git a/lib/librte_eal/bsdapp/eal/eal_thread.c
> b/lib/librte_eal/bsdapp/eal/eal_thread.c
> index ca95c72..5e6eea9 100644
> --- a/lib/librte_eal/bsdapp/eal/eal_thread.c
> +++ b/lib/librte_eal/bsdapp/eal/eal_thread.c
> @@ -60,6 +60,11 @@ RTE_DEFINE_PER_LCORE(unsigned, _lcore_id) =
> LCORE_ID_ANY;
> RTE_DEFINE_PER_LCORE(unsigned, _socket_id) = (unsigned)SOCKET_ID_ANY;
> RTE_DEFINE_PER_LCORE(rte_cpuset_t, _cpuset);
>
> +unsigned rte_socket_id(void)
> +{
> + return RTE_PER_LCORE(_socket_id);
> +}
> +
> /*
> * Send a message to a slave lcore identified by slave_id to call a
> * function f with argument arg. Once the execution is done, the
> diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
> b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
> index 17515a9..d83524d 100644
> --- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
> +++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
> @@ -10,7 +10,6 @@ DPDK_2.0 {
> pci_driver_list;
> per_lcore__lcore_id;
> per_lcore__rte_errno;
> - per_lcore__socket_id;
> rte_cpu_check_supported;
> rte_cpu_get_flag_enabled;
> rte_cycles_vmware_tsc_map;
> @@ -82,6 +81,7 @@ DPDK_2.0 {
> rte_set_log_level;
> rte_set_log_type;
> rte_snprintf;
> + rte_socket_id;
> rte_strerror;
> rte_strsplit;
> rte_sys_gettid;
> diff --git a/lib/librte_eal/common/eal_common_thread.c
> b/lib/librte_eal/common/eal_common_thread.c
> index f4d9892..4010eab 100644
> --- a/lib/librte_eal/common/eal_common_thread.c
> +++ b/lib/librte_eal/common/eal_common_thread.c
> @@ -46,6 +46,8 @@
>
> #include "eal_thread.h"
>
> +RTE_DECLARE_PER_LCORE(unsigned , _socket_id);
> +
> int eal_cpuset_socket_id(rte_cpuset_t *cpusetp)
> {
> unsigned cpu = 0;
> diff --git a/lib/librte_eal/common/include/rte_lcore.h
> b/lib/librte_eal/common/include/rte_lcore.h
> index 20a58eb..e03264e 100644
> --- a/lib/librte_eal/common/include/rte_lcore.h
> +++ b/lib/librte_eal/common/include/rte_lcore.h
> @@ -81,7 +81,6 @@ struct lcore_config {
> extern struct lcore_config lcore_config[RTE_MAX_LCORE];
>
> RTE_DECLARE_PER_LCORE(unsigned, _lcore_id); /**< Per thread "lcore id". */
> -RTE_DECLARE_PER_LCORE(unsigned, _socket_id); /**< Per thread "socket id".
> */
> RTE_DECLARE_PER_LCORE(rte_cpuset_t, _cpuset); /**< Per thread "cpuset". */
>
> /**
> @@ -145,11 +144,7 @@ rte_lcore_index(int lcore_id)
> * @return
> * the ID of current lcoreid's physical socket
> */
> -static inline unsigned
> -rte_socket_id(void)
> -{
> - return RTE_PER_LCORE(_socket_id);
> -}
> +unsigned rte_socket_id(void);
>
> /**
> * Get the ID of the physical socket of the specified lcore
> diff --git a/lib/librte_eal/linuxapp/eal/eal_thread.c
> b/lib/librte_eal/linuxapp/eal/eal_thread.c
> index 5635c7d..9cacd86 100644
> --- a/lib/librte_eal/linuxapp/eal/eal_thread.c
> +++ b/lib/librte_eal/linuxapp/eal/eal_thread.c
> @@ -60,6 +60,11 @@ RTE_DEFINE_PER_LCORE(unsigned, _lcore_id) =
> LCORE_ID_ANY;
> RTE_DEFINE_PER_LCORE(unsigned, _socket_id) = (unsigned)SOCKET_ID_ANY;
> RTE_DEFINE_PER_LCORE(rte_cpuset_t, _cpuset);
>
> +unsigned rte_socket_id(void)
> +{
> + return RTE_PER_LCORE(_socket_id);
> +}
> +
> /*
> * Send a message to a slave lcore identified by slave_id to call a
> * function f with argument arg. Once the execution is done, the
> diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> index 17515a9..d83524d 100644
> --- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> +++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
> @@ -10,7 +10,6 @@ DPDK_2.0 {
> pci_driver_list;
> per_lcore__lcore_id;
> per_lcore__rte_errno;
> - per_lcore__socket_id;
> rte_cpu_check_supported;
> rte_cpu_get_flag_enabled;
> rte_cycles_vmware_tsc_map;
> @@ -82,6 +81,7 @@ DPDK_2.0 {
> rte_set_log_level;
> rte_set_log_type;
> rte_snprintf;
> + rte_socket_id;
> rte_strerror;
> rte_strsplit;
> rte_sys_gettid;
> --
> 2.1.0
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