[dpdk-dev] [PATCH 1/4] net/ice: add devargs to control pipeline mode
Ying Wang
ying.a.wang at intel.com
Wed Sep 4 00:15:19 CEST 2019
From: Qiming Yang <qiming.yang at intel.com>
Added a devarg to control the mode in generic flow API.
We use none-pipeline mode by default.
Signed-off-by: Qiming Yang <qiming.yang at intel.com>
---
doc/guides/nics/ice.rst | 11 +++++++++++
drivers/net/ice/ice_ethdev.c | 16 +++++++++++++++-
drivers/net/ice/ice_ethdev.h | 1 +
3 files changed, 27 insertions(+), 1 deletion(-)
diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
index 03819d29f..a8429a535 100644
--- a/doc/guides/nics/ice.rst
+++ b/doc/guides/nics/ice.rst
@@ -61,6 +61,17 @@ Runtime Config Options
NOTE: In Safe mode, only very limited features are available, features like RSS,
checksum, fdir, tunneling ... are all disabled.
+- ``Generic Flow Pipeline Mode Support`` (default ``0``)
+
+ In pipeline mode, a flow can be setted at one specific stage by setting parameter
+ ``priority``. Currently, we support two stages, priority 0 for permission and 1 for
+ distributor. For none-pipeline mode, all flows are assumed to be at the same pipeline
+ stage, priority is ignored. Default, generic flow API is enabled in none pipeline mode,
+ user can choose to use pipeline mode by set ``devargs`` parameter ``pipeline-mode-support``,
+ for example::
+
+ -w 80:00.0, pipleline-mode-support=1
+
Driver compilation and testing
------------------------------
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 9aa7506ba..4e0645db1 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -19,9 +19,11 @@
/* devargs */
#define ICE_SAFE_MODE_SUPPORT_ARG "safe-mode-support"
+#define ICE_PIPELINE_MODE_SUPPORT_ARG "pipeline-mode-support"
static const char * const ice_valid_args[] = {
ICE_SAFE_MODE_SUPPORT_ARG,
+ ICE_PIPELINE_MODE_SUPPORT_ARG,
NULL
};
@@ -1510,7 +1512,18 @@ static int ice_parse_devargs(struct rte_eth_dev *dev)
ret = rte_kvargs_process(kvlist, ICE_SAFE_MODE_SUPPORT_ARG,
&parse_bool, &ad->devargs.safe_mode_support);
+ if (ret)
+ goto err_devargs;
+
+ ret = rte_kvargs_process(kvlist, ICE_PIPELINE_MODE_SUPPORT_ARG,
+ &parse_bool, &ad->devargs.pipeline_mode_support);
+ if (ret)
+ goto err_devargs;
+
+ rte_kvargs_free(kvlist);
+ return ret;
+err_devargs:
rte_kvargs_free(kvlist);
return ret;
}
@@ -3925,7 +3938,8 @@ RTE_PMD_REGISTER_PCI(net_ice, rte_ice_pmd);
RTE_PMD_REGISTER_PCI_TABLE(net_ice, pci_id_ice_map);
RTE_PMD_REGISTER_KMOD_DEP(net_ice, "* igb_uio | uio_pci_generic | vfio-pci");
RTE_PMD_REGISTER_PARAM_STRING(net_ice,
- ICE_SAFE_MODE_SUPPORT_ARG "=<0|1>");
+ ICE_SAFE_MODE_SUPPORT_ARG "=<0|1>"
+ ICE_PIPELINE_MODE_SUPPORT_ARG "=<0|1>");
RTE_INIT(ice_init_log)
{
diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h
index 926db23d2..9bf5de08d 100644
--- a/drivers/net/ice/ice_ethdev.h
+++ b/drivers/net/ice/ice_ethdev.h
@@ -285,6 +285,7 @@ struct ice_pf {
*/
struct ice_devargs {
int safe_mode_support;
+ int pipeline_mode_support;
};
/**
--
2.15.1
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