netmap: align codebase to upstream version v11.4

Changelist:
  - remove unused nkr_slot_flags
  - new nm_intr adapter callback to enable/disable interrupts
  - remove unused sysctls and document the other sysctls
  - new infrastructure to support NS_MOREFRAG for NIC ports
  - support for external memory allocator (for now linux-only),
    including linux-specific changes in common headers
  - optimizations within netmap pipes datapath
  - improvements on VALE control API
  - new nm_parse() helper function in netmap_user.h
  - various bug fixes and code clean up

Approved by:	hrs (mentor)

1 files changed, 1 insertions, 3 deletions

diff --git a/sys/dev/netmap/if_igb_netmap.h b/sys/dev/netmap/if_igb_netmap.h
index cd80f2663bc7..df15ceee7d8c 100644
--- a/sys/dev/netmap/if_igb_netmap.h
+++ b/sys/dev/netmap/if_igb_netmap.h
@@ -217,8 +217,6 @@ igb_netmap_rxsync(struct netmap_kring *kring, int flags)
 	 * First part: import newly received packets.
 	 */
 	if (netmap_no_pendintr || force_update) {
-		uint16_t slot_flags = kring->nkr_slot_flags;
-
 		nic_i = rxr->next_to_check;
 		nm_i = netmap_idx_n2k(kring, nic_i);
 
@@ -229,7 +227,7 @@ igb_netmap_rxsync(struct netmap_kring *kring, int flags)
 			if ((staterr & E1000_RXD_STAT_DD) == 0)
 				break;
 			ring->slot[nm_i].len = le16toh(curr->wb.upper.length);
-			ring->slot[nm_i].flags = slot_flags;
+			ring->slot[nm_i].flags = 0;
 			bus_dmamap_sync(rxr->ptag,
 			    rxr->rx_buffers[nic_i].pmap, BUS_DMASYNC_POSTREAD);
 			nm_i = nm_next(nm_i, lim);