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net/cnxk: add devargs for configuring SDP channel mask

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This patch adds support to configure channel mask which will
be used by rte flow when adding flow rules on SDP interfaces.

Signed-off-by: Satheesh Paul <psatheesh@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
This commit is contained in:
Satheesh Paul 2021-11-09 15:12:04 +05:30 committed by Jerin Jacob
parent f137566333
commit 18652b0f78
2 changed files with 59 additions and 2 deletions
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21
doc/guides/nics/cnxk.rst
View File

@ -276,6 +276,27 @@ Runtime Config Options
set with this custom mask, inbound encrypted traffic from all ports with
matching channel number pattern will be directed to the inline IPSec device.
- ``SDP device channel and mask`` (default ``none``)
Set channel and channel mask configuration for the SDP device. This
will be used when creating flow rules on the SDP device.
By default, for rules created on the SDP device, the RTE Flow API sets the
channel number and mask to cover the entire SDP channel range in the channel
field of the MCAM entry. This behaviour can be modified using the
``sdp_channel_mask`` ``devargs`` parameter.
For example::
-a 0002:1d:00.0,sdp_channel_mask=0x700/0xf00
With the above configuration, RTE Flow rules API will set the channel
and channel mask as 0x700 and 0xF00 in the MCAM entries of the flow rules
created on the SDP device. This option needs to be used when more than one
SDP interface is in use and RTE Flow rules created need to distinguish
between traffic from each SDP interface. The channel and mask combination
specified should match all the channels(or rings) configured on the SDP
interface.
.. note::
Above devarg parameters are configurable per device, user needs to pass the

40
drivers/net/cnxk/cnxk_ethdev_devargs.c
View File

@ -7,6 +7,12 @@
#include "cnxk_ethdev.h"
struct sdp_channel {
bool is_sdp_mask_set;
uint16_t channel;
uint16_t mask;
};
static int
parse_outb_nb_desc(const char *key, const char *value, void *extra_args)
{
@ -164,6 +170,27 @@ parse_switch_header_type(const char *key, const char *value, void *extra_args)
return 0;
}
static int
parse_sdp_channel_mask(const char *key, const char *value, void *extra_args)
{
RTE_SET_USED(key);
uint16_t chan = 0, mask = 0;
char *next = 0;
/* next will point to the separator '/' */
chan = strtol(value, &next, 16);
mask = strtol(++next, 0, 16);
if (chan > GENMASK(11, 0) || mask > GENMASK(11, 0))
return -EINVAL;
((struct sdp_channel *)extra_args)->channel = chan;
((struct sdp_channel *)extra_args)->mask = mask;
((struct sdp_channel *)extra_args)->is_sdp_mask_set = true;
return 0;
}
#define CNXK_RSS_RETA_SIZE "reta_size"
#define CNXK_SCL_ENABLE "scalar_enable"
#define CNXK_MAX_SQB_COUNT "max_sqb_count"
@ -177,6 +204,7 @@ parse_switch_header_type(const char *key, const char *value, void *extra_args)
#define CNXK_OUTB_NB_DESC "outb_nb_desc"
#define CNXK_FORCE_INB_INL_DEV "force_inb_inl_dev"
#define CNXK_OUTB_NB_CRYPTO_QS "outb_nb_crypto_qs"
#define CNXK_SDP_CHANNEL_MASK "sdp_channel_mask"
int
cnxk_ethdev_parse_devargs(struct rte_devargs *devargs, struct cnxk_eth_dev *dev)
@ -191,11 +219,14 @@ cnxk_ethdev_parse_devargs(struct rte_devargs *devargs, struct cnxk_eth_dev *dev)
uint16_t force_inb_inl_dev = 0;
uint16_t outb_nb_crypto_qs = 1;
uint16_t outb_nb_desc = 8200;
struct sdp_channel sdp_chan;
uint16_t rss_tag_as_xor = 0;
uint16_t scalar_enable = 0;
uint8_t lock_rx_ctx = 0;
struct rte_kvargs *kvlist;
memset(&sdp_chan, 0, sizeof(sdp_chan));
if (devargs == NULL)
goto null_devargs;
@ -228,6 +259,8 @@ cnxk_ethdev_parse_devargs(struct rte_devargs *devargs, struct cnxk_eth_dev *dev)
&parse_outb_nb_crypto_qs, &outb_nb_crypto_qs);
rte_kvargs_process(kvlist, CNXK_FORCE_INB_INL_DEV, &parse_flag,
&force_inb_inl_dev);
rte_kvargs_process(kvlist, CNXK_SDP_CHANNEL_MASK,
&parse_sdp_channel_mask, &sdp_chan);
rte_kvargs_free(kvlist);
null_devargs:
@ -246,8 +279,10 @@ null_devargs:
dev->npc.flow_prealloc_size = flow_prealloc_size;
dev->npc.flow_max_priority = flow_max_priority;
dev->npc.switch_header_type = switch_header_type;
dev->npc.sdp_channel = sdp_chan.channel;
dev->npc.sdp_channel_mask = sdp_chan.mask;
dev->npc.is_sdp_mask_set = sdp_chan.is_sdp_mask_set;
return 0;
exit:
return -EINVAL;
}
@ -263,4 +298,5 @@ RTE_PMD_REGISTER_PARAM_STRING(net_cnxk,
CNXK_IPSEC_IN_MAX_SPI "=<1-65535>"
CNXK_OUTB_NB_DESC "=<1-65535>"
CNXK_OUTB_NB_CRYPTO_QS "=<1-64>"
CNXK_FORCE_INB_INL_DEV "=1");
CNXK_FORCE_INB_INL_DEV "=1"
CNXK_SDP_CHANNEL_MASK "=<1-4095>/<1-4095>");