net/bnxt: fix max rings calculation

[dpdk.git] / drivers / net / bnxt / bnxt.h

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 3487b91..ddb2681 100644 (file)
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -622,12 +622,19 @@ struct bnxt {
        uint16_t                max_tx_rings;
        uint16_t                max_rx_rings;
 #define MAX_STINGRAY_RINGS             128U
-#define BNXT_MAX_RINGS(bp) \
+/* For sake of symmetry, max Tx rings == max Rx rings, one stat ctx for each */
+#define BNXT_MAX_RX_RINGS(bp) \
        (BNXT_STINGRAY(bp) ? RTE_MIN(RTE_MIN(bp->max_rx_rings, \
                                             MAX_STINGRAY_RINGS), \
-                                    bp->max_stat_ctx) : \
-                               RTE_MIN(bp->max_rx_rings, bp->max_stat_ctx))
+                                    bp->max_stat_ctx / 2U) : \
+                               RTE_MIN(bp->max_rx_rings, \
+                                       bp->max_stat_ctx / 2U))
+#define BNXT_MAX_TX_RINGS(bp) \
+       (RTE_MIN((bp)->max_tx_rings, BNXT_MAX_RX_RINGS(bp)))
 
+#define BNXT_MAX_RINGS(bp) \
+       (RTE_MIN((((bp)->max_cp_rings - BNXT_NUM_ASYNC_CPR(bp)) / 2U), \
+                BNXT_MAX_TX_RINGS(bp)))
        uint16_t                max_nq_rings;
        uint16_t                max_l2_ctx;
        uint16_t                max_rx_em_flows;