[dpdk-dev] [PATCH v8 3/9] ethdev: support new VF representor syntax
Xueming Li
xuemingl at nvidia.com
Thu Mar 4 15:30:19 CET 2021
Current VF representor syntax:
representor=2 - single representor
representor=[0-3] - single range
To prepare for more representor types, this patch adds compatible VF
representor devargs syntax:
vf#:
representor=vf2 - single representor
representor=vf[1,3,5] - single list
representor=vf[0-3] - single range
representor=vf[0,1,4-7] - list with singles and range
For backwards compatibility, representor "#" is interpreted as "vf#".
Signed-off-by: Xueming Li <xuemingl at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
Acked-by: Thomas Monjalon <thomas at monjalon.net>
Acked-by: Andrew Rybchenko <andrew.rybchenko at oktetlabs.ru>
---
doc/guides/prog_guide/poll_mode_drv.rst | 7 ++++---
lib/librte_ethdev/ethdev_private.c | 5 ++++-
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/doc/guides/prog_guide/poll_mode_drv.rst b/doc/guides/prog_guide/poll_mode_drv.rst
index 239ec820ea..0117c2af07 100644
--- a/doc/guides/prog_guide/poll_mode_drv.rst
+++ b/doc/guides/prog_guide/poll_mode_drv.rst
@@ -374,9 +374,10 @@ parameters to those ports.
this argument allows user to specify which switch ports to enable port
representors for.::
- -a DBDF,representor=0
- -a DBDF,representor=[0,4,6,9]
- -a DBDF,representor=[0-31]
+ -a DBDF,representor=vf0
+ -a DBDF,representor=vf[0,4,6,9]
+ -a DBDF,representor=vf[0-31]
+ -a DBDF,representor=vf[0,2-4,7,9-11]
Note: PMDs are not required to support the standard device arguments and users
should consult the relevant PMD documentation to see support devargs.
diff --git a/lib/librte_ethdev/ethdev_private.c b/lib/librte_ethdev/ethdev_private.c
index d5ef05ea6f..4bb3879859 100644
--- a/lib/librte_ethdev/ethdev_private.c
+++ b/lib/librte_ethdev/ethdev_private.c
@@ -117,7 +117,8 @@ rte_eth_devargs_process_list(char *str, uint16_t *list, uint16_t *len_list,
* Parse representor ports from a single value or lists.
*
* Representor format:
- * #: range or single number of VF representor
+ * #: range or single number of VF representor - legacy
+ * vf#: VF port representor/s
*
* Examples of #:
* 2 - single
@@ -130,6 +131,8 @@ rte_eth_devargs_parse_representor_ports(char *str, void *data)
struct rte_eth_devargs *eth_da = data;
eth_da->type = RTE_ETH_REPRESENTOR_VF;
+ if (str[0] == 'v' && str[1] == 'f')
+ str += 2;
str = rte_eth_devargs_process_list(str, eth_da->representor_ports,
ð_da->nb_representor_ports,
RTE_DIM(eth_da->representor_ports));
--
2.25.1
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