[PATCH v1] net/ice: support 256 queues

[PATCH v1] net/ice: support 256 queues

[Wenjun Wu]

256 queues can be allowed now. This patch improves the code
to support 256 queues for per PF.

Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>
---
 drivers/net/ice/ice_ethdev.c | 8 ++++----
 drivers/net/ice/ice_ethdev.h | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 13adcf90ed..73e550f5fb 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -808,7 +808,7 @@ ice_vsi_config_tc_queue_mapping(struct ice_vsi *vsi,
 				struct ice_aqc_vsi_props *info,
 				uint8_t enabled_tcmap)
 {
-	uint16_t bsf, qp_idx;
+	uint16_t fls, qp_idx;
 
 	/* default tc 0 now. Multi-TC supporting need to be done later.
 	 * Configure TC and queue mapping parameters, for enabled TC,
@@ -820,15 +820,15 @@ ice_vsi_config_tc_queue_mapping(struct ice_vsi *vsi,
 	}
 
 	vsi->nb_qps = RTE_MIN(vsi->nb_qps, ICE_MAX_Q_PER_TC);
-	bsf = rte_bsf32(vsi->nb_qps);
+	fls = (vsi->nb_qps == 0) ? 0 : rte_fls_u32(vsi->nb_qps) - 1;
 	/* Adjust the queue number to actual queues that can be applied */
-	vsi->nb_qps = 0x1 << bsf;
+	vsi->nb_qps = (vsi->nb_qps == 0) ? 0 : 0x1 << fls;
 
 	qp_idx = 0;
 	/* Set tc and queue mapping with VSI */
 	info->tc_mapping[0] = rte_cpu_to_le_16((qp_idx <<
 						ICE_AQ_VSI_TC_Q_OFFSET_S) |
-					       (bsf << ICE_AQ_VSI_TC_Q_NUM_S));
+					       (fls << ICE_AQ_VSI_TC_Q_NUM_S));
 
 	/* Associate queue number with VSI */
 	info->mapping_flags |= rte_cpu_to_le_16(ICE_AQ_VSI_Q_MAP_CONTIG);
diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h
index 3ed580d438..09cfb60b0f 100644
--- a/drivers/net/ice/ice_ethdev.h
+++ b/drivers/net/ice/ice_ethdev.h
@@ -21,8 +21,8 @@
 #define ICE_ADMINQ_BUF_SZ            4096
 #define ICE_SBIOQ_BUF_SZ             4096
 #define ICE_MAILBOXQ_BUF_SZ          4096
-/* Number of queues per TC should be one of 1, 2, 4, 8, 16, 32, 64 */
-#define ICE_MAX_Q_PER_TC         64
+/* Number of queues per TC should be one of 1, 2, 4, 8, 16, 32, 64, 128, 256 */
+#define ICE_MAX_Q_PER_TC         256
 #define ICE_NUM_DESC_DEFAULT     512
 #define ICE_BUF_SIZE_MIN         1024
 #define ICE_FRAME_SIZE_MAX       9728
-- 
2.25.1

RE: [PATCH v1] net/ice: support 256 queues

[Zhang, Qi Z]

> -----Original Message-----
> From: Wu, Wenjun1 <wenjun1.wu@intel.com>
> Sent: Thursday, March 24, 2022 1:13 PM
> To: dev@dpdk.org; Yang, Qiming <qiming.yang@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Cc: Wu, Wenjun1 <wenjun1.wu@intel.com>
> Subject: [PATCH v1] net/ice: support 256 queues
> 
> 256 queues can be allowed now. This patch improves the code to support 256
> queues for per PF.
> 
> Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>

Acked-by: Qi Zhang <qi.z.zhang@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi