[dpdk-dev] [PATCH v2 05/63] net/ice/base: store number of functions for the device

Qi Zhang qi.z.zhang at intel.com
Thu Aug 29 04:35:58 CEST 2019


Store the number of functions the device has.  This value can be
very useful when calculating how to best allocate global resources.

Signed-off-by: Kevin Scott <kevin.c.scott at intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr at intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
 drivers/net/ice/base/ice_common.c | 6 +++++-
 drivers/net/ice/base/ice_type.h   | 1 +
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ice/base/ice_common.c b/drivers/net/ice/base/ice_common.c
index 58dd01ea1..fa97b792e 100644
--- a/drivers/net/ice/base/ice_common.c
+++ b/drivers/net/ice/base/ice_common.c
@@ -2114,6 +2114,10 @@ ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count,
 			ice_debug(hw, ICE_DBG_INIT,
 				  "%s: valid functions = %d\n", prefix,
 				  caps->valid_functions);
+
+			/* store func count for resource management purposes */
+			if (dev_p)
+				dev_p->num_funcs = ice_hweight32(number);
 			break;
 		case ICE_AQC_CAPS_VSI:
 			if (dev_p) {
@@ -2230,7 +2234,7 @@ ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count,
 	 * physical ports; i.e. some features are not supported or function
 	 * differently on devices with more than 4 ports.
 	 */
-	if (caps && (ice_hweight32(caps->valid_functions) > 4)) {
+	if (hw->dev_caps.num_funcs > 4) {
 		/* Max 4 TCs per port */
 		caps->maxtc = 4;
 		ice_debug(hw, ICE_DBG_INIT,
diff --git a/drivers/net/ice/base/ice_type.h b/drivers/net/ice/base/ice_type.h
index 2d010e643..88846e042 100644
--- a/drivers/net/ice/base/ice_type.h
+++ b/drivers/net/ice/base/ice_type.h
@@ -359,6 +359,7 @@ struct ice_hw_dev_caps {
 	struct ice_hw_common_caps common_cap;
 	u32 num_vsi_allocd_to_host;	/* Excluding EMP VSI */
 	u32 num_flow_director_fltr;	/* Number of FD filters available */
+	u32 num_funcs;
 };
 
 
-- 
2.13.6



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