[v3,5/9] ethdev: support multi-host representor
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Commit Message
This patch introduces multi-host controller for ethdev representor
syntax, examples:
[[c#]pf#]vf#: VF port representor/s, example: pf0vf1
[[c#]pf#]sf#: SF port representor/s, example: c1pf1sf[0-3]
c# is controller(host) ID/range in case of multi-host, optional. It is
mostly for SmartNIC attached to multiple hosts in the same rack to allow
routing the packets between PF/SF/VF running on these hosts.
Controller ID is physical host ID in multi-host, for end-user (e.g. OVS)
it is transparent as part of representor syntax, sam as representor
ID, interpreted by PMD.
Signed-off-by: Xueming Li <xuemingl@nvidia.com>
---
config/rte_config.h | 1 +
lib/librte_ethdev/ethdev_private.c | 14 ++++++++++++--
lib/librte_ethdev/rte_ethdev_driver.h | 4 ++++
3 files changed, 17 insertions(+), 2 deletions(-)
@@ -58,6 +58,7 @@
#define RTE_MAX_QUEUES_PER_PORT 1024
#define RTE_ETHDEV_QUEUE_STAT_CNTRS 16 /* max 256 */
#define RTE_ETHDEV_RXTX_CALLBACKS 1
+#define RTE_MAX_MULTI_HOST_CTRLS 4
/* cryptodev defines */
#define RTE_CRYPTO_MAX_DEVS 64
@@ -95,8 +95,8 @@ rte_eth_devargs_process_list(char *str, uint16_t *list, uint16_t *len_list,
/*
* representor format:
* #: range or single number of VF representor - legacy
- * [pf#]vf#: VF port representor/s
- * [pf#]sf#: SF port representor/s
+ * [[c#]pf#]vf#: VF port representor/s
+ * [[c#]pf#]sf#: SF port representor/s
*/
int
rte_eth_devargs_parse_representor_ports(char *str, void *data)
@@ -105,6 +105,16 @@ rte_eth_devargs_parse_representor_ports(char *str, void *data)
int ret;
eth_da->type = RTE_ETH_REPRESENTOR_NONE;
+ /* Parse c# */
+ if (str[0] == 'c') {
+ str += 1;
+ ret = rte_eth_devargs_process_list(str, eth_da->mh_controllers,
+ ð_da->nb_mh_controllers,
+ RTE_DIM(eth_da->mh_controllers));
+ if (ret < 0)
+ goto err;
+ str += ret;
+ }
/* Parse pf# */
if (str[0] == 'p' && str[1] == 'f') {
eth_da->type = RTE_ETH_REPRESENTOR_PF;
@@ -1203,6 +1203,10 @@ enum rte_eth_representor_type {
/** Generic Ethernet device arguments */
struct rte_eth_devargs {
+ uint16_t mh_controllers[RTE_MAX_MULTI_HOST_CTRLS];
+ /** controller/s number in case of multi-host */
+ uint16_t nb_mh_controllers;
+ /** number of controllers in multi-host controllers field */
uint16_t ports[RTE_MAX_ETHPORTS];
/** port/s number to enable on a multi-port single function */
uint16_t nb_ports;