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authorFlorin Coras <fcoras@cisco.com>2018-01-15 01:08:33 -0800
committerDave Barach <openvpp@barachs.net>2018-01-25 23:53:35 +0000
commitb384b543313b6b47a277c903e9d4fcd4343054fa (patch)
tree1996e3a25eb3a32fe5bbc405d75f38dd041a5a40 /src/vnet/session/application.c
parent4e578068fc3fe8ba176d211123ddd88962dab315 (diff)
session: add support for memfd segments
- update segment manager and session api to work with both flavors of ssvm segments - added generic ssvm slave/master init and del functions - cleanup/refactor tcp_echo - fixed uses of svm fifo pool as vector Change-Id: Ieee8b163faa407da6e77e657a2322de213a9d2a0 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/application.c')
-rw-r--r--src/vnet/session/application.c84
1 files changed, 63 insertions, 21 deletions
diff --git a/src/vnet/session/application.c b/src/vnet/session/application.c
index 8090e75a6dc..13ccdd7cbc8 100644
--- a/src/vnet/session/application.c
+++ b/src/vnet/session/application.c
@@ -227,18 +227,56 @@ application_verify_cb_fns (session_cb_vft_t * cb_fns)
clib_warning ("No session reset callback function provided");
}
+/**
+ * Check app config for given segment type
+ *
+ * Returns 1 on success and 0 otherwise
+ */
+static u8
+application_verify_cfg (ssvm_segment_type_t st)
+{
+ u8 is_valid;
+ if (st == SSVM_SEGMENT_MEMFD)
+ {
+ is_valid = (session_manager_get_evt_q_segment () != 0);
+ if (!is_valid)
+ clib_warning ("memfd seg: vpp's event qs IN binary api svm region");
+ return is_valid;
+ }
+ else if (st == SSVM_SEGMENT_SHM)
+ {
+ is_valid = (session_manager_get_evt_q_segment () == 0);
+ if (!is_valid)
+ clib_warning ("shm seg: vpp's event qs NOT IN binary api svm region");
+ return is_valid;
+ }
+ else
+ return 1;
+}
+
int
application_init (application_t * app, u32 api_client_index, u64 * options,
session_cb_vft_t * cb_fns)
{
- segment_manager_t *sm;
- segment_manager_properties_t *props;
+ ssvm_segment_type_t st = SSVM_SEGMENT_MEMFD;
u32 app_evt_queue_size, first_seg_size;
- u32 default_rx_fifo_size = 16 << 10, default_tx_fifo_size = 16 << 10;
+ segment_manager_properties_t *props;
+ vl_api_registration_t *reg;
+ segment_manager_t *sm;
int rv;
- app_evt_queue_size = options[APP_OPTIONS_EVT_QUEUE_SIZE] > 0 ?
- options[APP_OPTIONS_EVT_QUEUE_SIZE] : default_app_evt_queue_size;
+ /*
+ * Make sure we support the requested configuration
+ */
+ reg = vl_api_client_index_to_registration (api_client_index);
+ if (!reg)
+ return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
+
+ if (vl_api_registration_file_index (reg) == ~0)
+ st = SSVM_SEGMENT_SHM;
+
+ if (!application_verify_cfg (st))
+ return VNET_API_ERROR_APP_UNSUPPORTED_CFG;
/*
* Setup segment manager
@@ -247,21 +285,27 @@ application_init (application_t * app, u32 api_client_index, u64 * options,
sm->app_index = app->index;
props = segment_manager_properties_alloc ();
app->sm_properties = segment_manager_properties_index (props);
- props->add_segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE];
- props->rx_fifo_size = options[APP_OPTIONS_RX_FIFO_SIZE];
- props->rx_fifo_size =
- props->rx_fifo_size ? props->rx_fifo_size : default_rx_fifo_size;
- props->tx_fifo_size = options[APP_OPTIONS_TX_FIFO_SIZE];
- props->tx_fifo_size =
- props->tx_fifo_size ? props->tx_fifo_size : default_tx_fifo_size;
- props->add_segment = props->add_segment_size != 0;
+ if (options[APP_OPTIONS_ADD_SEGMENT_SIZE])
+ {
+ props->add_segment_size = options[APP_OPTIONS_ADD_SEGMENT_SIZE];
+ props->add_segment = 1;
+ }
+ if (options[APP_OPTIONS_RX_FIFO_SIZE])
+ props->rx_fifo_size = options[APP_OPTIONS_RX_FIFO_SIZE];
+ if (options[APP_OPTIONS_TX_FIFO_SIZE])
+ props->tx_fifo_size = options[APP_OPTIONS_TX_FIFO_SIZE];
props->preallocated_fifo_pairs = options[APP_OPTIONS_PREALLOC_FIFO_PAIRS];
- props->use_private_segment = options[APP_OPTIONS_FLAGS]
- & APP_OPTIONS_FLAGS_IS_BUILTIN;
props->private_segment_count = options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT];
+ if (options[APP_OPTIONS_FLAGS] & APP_OPTIONS_FLAGS_IS_BUILTIN)
+ props->segment_type = SSVM_N_SEGMENT_TYPES;
+ else
+ props->segment_type = st;
+ app_evt_queue_size = options[APP_OPTIONS_EVT_QUEUE_SIZE] > 0 ?
+ options[APP_OPTIONS_EVT_QUEUE_SIZE] : default_app_evt_queue_size;
first_seg_size = options[APP_OPTIONS_SEGMENT_SIZE];
- if ((rv = segment_manager_init (sm, app->sm_properties, first_seg_size)))
+ if ((rv = segment_manager_init (sm, app->sm_properties, first_seg_size,
+ app_evt_queue_size)))
return rv;
sm->first_is_protected = 1;
@@ -478,15 +522,13 @@ int
application_add_segment_notify (u32 app_index, u32 fifo_segment_index)
{
application_t *app = application_get (app_index);
- u32 seg_size = 0;
- u8 *seg_name;
+ svm_fifo_segment_private_t *fs;
/* Send an API message to the external app, to map new segment */
ASSERT (app->cb_fns.add_segment_callback);
- segment_manager_get_segment_info (fifo_segment_index, &seg_name, &seg_size);
- return app->cb_fns.add_segment_callback (app->api_client_index, seg_name,
- seg_size);
+ fs = segment_manager_get_segment (fifo_segment_index);
+ return app->cb_fns.add_segment_callback (app->api_client_index, &fs->ssvm);
}
u8