From 18b4547abc1277a6fa1b80e38be2e88f79f7e194 Mon Sep 17 00:00:00 2001 From: adrian Date: Thu, 15 Oct 2015 20:37:30 +0000 Subject: [PATCH] if_lem: Bring over the missing pieces from -HEAD to make NIC_PARAVIRT work. The paravirt support for the driver and netmap code was already MFCed, but the adapter and ifnet API bits weren't. This was backported from -HEAD by Eric Melville . Submitted by: eric Sponsored by: Norse Corp, Inc. git-svn-id: svn://svn.freebsd.org/base/stable/10@289386 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f --- sys/dev/e1000/if_lem.c | 2 +- sys/dev/e1000/if_lem.h | 16 ++++++++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/sys/dev/e1000/if_lem.c b/sys/dev/e1000/if_lem.c index 7dc7d84f9..903cc2878 100644 --- a/sys/dev/e1000/if_lem.c +++ b/sys/dev/e1000/if_lem.c @@ -951,7 +951,7 @@ lem_start_locked(struct ifnet *ifp) if (adapter->num_tx_desc_avail <= EM_TX_OP_THRESHOLD) ifp->if_drv_flags |= IFF_DRV_OACTIVE; #ifdef NIC_PARAVIRT - if (if_getdrvflags(ifp) & IFF_DRV_OACTIVE && adapter->csb && + if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) && adapter->csb && adapter->csb->guest_csb_on && !(adapter->csb->guest_need_txkick & 1)) { adapter->csb->guest_need_txkick = 1; diff --git a/sys/dev/e1000/if_lem.h b/sys/dev/e1000/if_lem.h index 235277d74..c67a76178 100644 --- a/sys/dev/e1000/if_lem.h +++ b/sys/dev/e1000/if_lem.h @@ -265,6 +265,13 @@ #define PICOSECS_PER_TICK 20833 #define TSYNC_PORT 319 /* UDP port for the protocol */ +#ifdef NIC_PARAVIRT +#define E1000_PARA_SUBDEV 0x1101 /* special id */ +#define E1000_CSBAL 0x02830 /* csb phys. addr. low */ +#define E1000_CSBAH 0x02834 /* csb phys. addr. hi */ +#include +#endif + /* * Bus dma allocation structure used by * e1000_dma_malloc and e1000_dma_free. @@ -437,6 +444,15 @@ struct adapter { boolean_t pcix_82544; boolean_t in_detach; +#ifdef NIC_PARAVIRT + struct em_dma_alloc csb_mem; + struct paravirt_csb *csb; + uint32_t rx_retries; + uint32_t tdt_csb_count; + uint32_t tdt_reg_count; + uint32_t tdt_int_count; + uint32_t guest_need_kick_count; +#endif struct e1000_hw_stats stats; }; -- 2.45.0