Author: kp
Date: Wed Jun 3 18:09:32 2020
New Revision: 361762
URL: https://svnweb.freebsd.org/changeset/base/361762
Log:
MFC r361279:
bnxt: isc_nrxd_max and isc_ntxd_max must be powers of two
Modified:
stable/11/sys/dev/bnxt/bnxt.h
stable/11/sys/dev/bnxt/if_bnxt.c
Modified: stable/11/sys/dev/bnxt/bnxt.h
==============================================================================
--- stable/11/sys/dev/bnxt/bnxt.h Wed Jun 3 18:09:31 2020
(r361761)
+++ stable/11/sys/dev/bnxt/bnxt.h Wed Jun 3 18:09:32 2020
(r361762)
@@ -87,6 +87,11 @@ __FBSDID("$FreeBSD$");
#define NETXTREME_E_VF2 0x16d3
#define NETXTREME_E_VF3 0x16dc
+/* Maximum numbers of RX and TX descriptors. iflib requires this to be a power
+ * of two. The hardware has no particular limitation. */
+#define BNXT_MAX_RXD ((INT32_MAX >> 1) + 1)
+#define BNXT_MAX_TXD ((INT32_MAX >> 1) + 1)
+
#define CSUM_OFFLOAD (CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP| \
CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP| \
CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP)
Modified: stable/11/sys/dev/bnxt/if_bnxt.c
==============================================================================
--- stable/11/sys/dev/bnxt/if_bnxt.c Wed Jun 3 18:09:31 2020
(r361761)
+++ stable/11/sys/dev/bnxt/if_bnxt.c Wed Jun 3 18:09:32 2020
(r361762)
@@ -313,11 +313,11 @@ static struct if_shared_ctx bnxt_sctx_init = {
.isc_nrxd_default = {PAGE_SIZE / sizeof(struct cmpl_base) * 8,
PAGE_SIZE / sizeof(struct rx_prod_pkt_bd),
PAGE_SIZE / sizeof(struct rx_prod_pkt_bd)},
- .isc_nrxd_max = {INT32_MAX, INT32_MAX, INT32_MAX},
+ .isc_nrxd_max = {BNXT_MAX_RXD, BNXT_MAX_RXD, BNXT_MAX_RXD},
.isc_ntxd_min = {16, 16, 16},
.isc_ntxd_default = {PAGE_SIZE / sizeof(struct cmpl_base) * 2,
PAGE_SIZE / sizeof(struct tx_bd_short)},
- .isc_ntxd_max = {INT32_MAX, INT32_MAX, INT32_MAX},
+ .isc_ntxd_max = {BNXT_MAX_TXD, BNXT_MAX_TXD, BNXT_MAX_TXD},
.isc_admin_intrcnt = 1,
.isc_vendor_info = bnxt_vendor_info_array,
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