From b95cbe7f1bc6027e89d705d6ba283b76383be81d Mon Sep 17 00:00:00 2001 From: Xiao Wang Date: Tue, 18 Dec 2018 16:02:05 +0800 Subject: [PATCH] net/ifc: use vhost lib function for used ring logging Vhost lib has already provided a helper for used ring logging, driver could use it to reduce code. Signed-off-by: Xiao Wang Reviewed-by: Maxime Coquelin --- drivers/net/ifc/ifcvf_vdpa.c | 27 ++++++++------------------- 1 file changed, 8 insertions(+), 19 deletions(-) diff --git a/drivers/net/ifc/ifcvf_vdpa.c b/drivers/net/ifc/ifcvf_vdpa.c index 2f73d3c7c6..4edba3e5f6 100644 --- a/drivers/net/ifc/ifcvf_vdpa.c +++ b/drivers/net/ifc/ifcvf_vdpa.c @@ -31,6 +31,9 @@ #define PAGE_SIZE 4096 #endif +#define IFCVF_USED_RING_LEN(size) \ + ((size) * sizeof(struct vring_used_elem) + sizeof(uint16_t) * 3) + #define IFCVF_VDPA_MODE "vdpa" #define IFCVF_SW_FALLBACK_LM "sw-live-migration" @@ -288,21 +291,6 @@ vdpa_ifcvf_start(struct ifcvf_internal *internal) return ifcvf_start_hw(&internal->hw); } -static void -ifcvf_used_ring_log(struct ifcvf_hw *hw, uint32_t queue, uint8_t *log_buf) -{ - uint32_t i, size; - uint64_t pfn; - - pfn = hw->vring[queue].used / PAGE_SIZE; - size = hw->vring[queue].size * sizeof(struct vring_used_elem) + - sizeof(uint16_t) * 3; - - for (i = 0; i <= size / PAGE_SIZE; i++) - __sync_fetch_and_or_8(&log_buf[(pfn + i) / 8], - 1 << ((pfn + i) % 8)); -} - static void vdpa_ifcvf_stop(struct ifcvf_internal *internal) { @@ -311,7 +299,7 @@ vdpa_ifcvf_stop(struct ifcvf_internal *internal) int vid; uint64_t features; uint64_t log_base, log_size; - uint8_t *log_buf; + uint64_t len; vid = internal->vid; ifcvf_stop_hw(hw); @@ -330,9 +318,10 @@ vdpa_ifcvf_stop(struct ifcvf_internal *internal) * IFCVF marks dirty memory pages for only packet buffer, * SW helps to mark the used ring as dirty after device stops. */ - log_buf = (uint8_t *)(uintptr_t)log_base; - for (i = 0; i < hw->nr_vring; i++) - ifcvf_used_ring_log(hw, i, log_buf); + for (i = 0; i < hw->nr_vring; i++) { + len = IFCVF_USED_RING_LEN(hw->vring[i].size); + rte_vhost_log_used_vring(vid, i, 0, len); + } } }