Hi,
Best Regards, Mark > -----Original Message----- > From: He, Shaopeng > Sent: Thursday, January 28, 2016 1:47 PM > To: dev at dpdk.org > Cc: Chen, Jing D; Wang, Xiao W; He, Shaopeng > Subject: [PATCH] fm10k: fix switch manager high CPU usage > > fm10k switch core uses source MAC + VID + SGLORT to do > look up in MAC table. If no match, an exception interrupt > will be sent to the switch manager, and cause high CPU > usage. Above paragraph didn't describe the bug clearly. Can you add more Words on it? > This patch fixes this issue. A default SGLORT is assigned > to each TX queue. This default value works for non-VMDq mode > and current VMDq example. For advanced VMDq usage, e.g. > different source MAC address for different TX queue, FTAG > forwarding function could be used to change this default > SGLORT value. > > Signed-off-by: Shaopeng He <shaopeng.he at intel.com> > --- > drivers/net/fm10k/fm10k_ethdev.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/net/fm10k/fm10k_ethdev.c > b/drivers/net/fm10k/fm10k_ethdev.c > index e4aed94..f6eb05d 100644 > --- a/drivers/net/fm10k/fm10k_ethdev.c > +++ b/drivers/net/fm10k/fm10k_ethdev.c > @@ -675,6 +675,9 @@ fm10k_dev_tx_init(struct rte_eth_dev *dev) > FM10K_WRITE_REG(hw, FM10K_TDBAH(i), > base_addr >> (CHAR_BIT * sizeof(uint32_t))); > FM10K_WRITE_REG(hw, FM10K_TDLEN(i), size); > + > + /* assign default SGLORT for each TX queue */ > + FM10K_WRITE_REG(hw, FM10K_TX_SGLORT(i), hw- > >mac.dglort_map); > } > > /* set up vector or scalar TX function as appropriate */ > -- > 1.9.3
