[dpdk-dev] [PATCH v2 10/10] igbuio: use mode string for module param
Stephen Hemminger
stephen at networkplumber.org
Sat Jun 7 01:50:38 CEST 2014
Since we now have a list of interrupt modes for sysfs,
use that to match module param values. This also allows msi
to be selected as a preferred mode.
Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
--- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
+++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c
@@ -605,21 +605,24 @@
static int
igbuio_config_intr_mode(char *intr_str)
{
+ unsigned int i;
+
if (!intr_str) {
pr_info("Use MSIX interrupt by default\n");
return 0;
}
- if (!strcmp(intr_str, "msix")) {
- igbuio_intr_mode_preferred = IGBUIO_MSIX_INTR_MODE;
- pr_info("Use MSIX interrupt\n");
- } else if (!strcmp(intr_str, "legacy")) {
- igbuio_intr_mode_preferred = IGBUIO_LEGACY_INTR_MODE;
- pr_info("Use legacy interrupt\n");
- } else {
- pr_info("Error: bad parameter - %s\n", intr_str);
- return -EINVAL;
- }
+ for (i = 0; i < ARRAY_SIZE(igbuio_intr_modes); i++) {
+ const char *mode = igbuio_intr_modes[i];
+ if (!strcmp(intr_str, mode)) {
+ pr_info("Use %s interrupt mode\n", mode);
+ igbuio_intr_mode_preferred = i;
+ return 0;
+ }
+ }
+
+ pr_warn("bad interrupt mode parameter %s\n", intr_str);
+ return -EINVAL;
return 0;
}
@@ -656,6 +659,7 @@
MODULE_PARM_DESC(intr_mode,
"igb_uio interrupt mode (default=msix):\n"
" msix Use MSIX interrupt\n"
+" msi Use MSI interrupt\n"
" legacy Use Legacy interrupt\n"
"\n");
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