diff mbox series

[v4,3/9] ethdev: support new VF representor syntax

Message ID 1610968623-31345-4-git-send-email-xuemingl@nvidia.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers
Series ethdev: support SubFunction representor |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Xueming Li Jan. 18, 2021, 11:16 a.m. UTC 
  To prepare for more representor types, this patch adds compatible VF
representor devargs syntax:

vf#: new VF port representor/s, examples:
 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 deemed as "vf#".

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 doc/guides/prog_guide/poll_mode_drv.rst | 7 ++++---
 lib/librte_ethdev/ethdev_private.c      | 5 ++++-
 2 files changed, 8 insertions(+), 4 deletions(-)
diff mbox series

Patch

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 12bcc7e98d..ee60b1259a 100644
--- a/lib/librte_ethdev/ethdev_private.c
+++ b/lib/librte_ethdev/ethdev_private.c
@@ -107,7 +107,8 @@  rte_eth_devargs_process_list(char *str, uint16_t *list, uint16_t *len_list,
 
 /*
  * representor format:
- *   #: range or single number of VF representor
+ *   #: range or single number of VF representor - legacy
+ *   vf#: VF port representor/s
  */
 int
 rte_eth_devargs_parse_representor_ports(char *str, void *data)
@@ -115,6 +116,8 @@  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,
 		&eth_da->nb_representor_ports, RTE_MAX_ETHPORTS);
 	if (str == NULL)