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Commit 0b3aec85 authored by Jesse Brandeburg's avatar Jesse Brandeburg Committed by Jeff Kirsher
Browse files

i40e/i40evf: unhide and enable to one prefena field 



The PREFENA field in the receive host memory cache (RX-HMC)
must be visible in order to be set to 1 at driver init for
best performance.

Change-ID: I16b0bcd84cf56f4b6c938201ff5e954bee5a1992
Signed-off-by: default avatarJesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: default avatarShannon Nelson <shannon.nelson@intel.com>
Tested-by: default avatarKavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 4ba0dea5

drivers/net/ethernet/intel/i40e/i40e_lan_hmc.c

+1 −0
Original line number Original line Diff line number Diff line
@@ -747,6 +747,7 @@ static struct i40e_context_ele i40e_hmc_rxq_ce_info[] = { 
	{ I40E_HMC_STORE(i40e_hmc_obj_rxq, tphdata_ena),  1,	195 },

	{ I40E_HMC_STORE(i40e_hmc_obj_rxq, tphdata_ena),  1,	195 },

	{ I40E_HMC_STORE(i40e_hmc_obj_rxq, tphhead_ena),  1,	196 },

	{ I40E_HMC_STORE(i40e_hmc_obj_rxq, tphhead_ena),  1,	196 },

	{ I40E_HMC_STORE(i40e_hmc_obj_rxq, lrxqthresh),   3,	198 },

	{ I40E_HMC_STORE(i40e_hmc_obj_rxq, lrxqthresh),   3,	198 },

	{ I40E_HMC_STORE(i40e_hmc_obj_rxq, prefena),      1,	201 },

	{ 0 }

	{ 0 }

};

};

drivers/net/ethernet/intel/i40e/i40e_lan_hmc.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -56,6 +56,7 @@ struct i40e_hmc_obj_rxq { 
	u8  tphdata_ena;

	u8  tphdata_ena;

	u8  tphhead_ena;

	u8  tphhead_ena;

	u8  lrxqthresh;

	u8  lrxqthresh;

	u8  prefena;	/* NOTE: normally must be set to 1 at init */

};

};





/* Tx queue context data */

/* Tx queue context data */

drivers/net/ethernet/intel/i40e/i40e_main.c

+2 −0
Original line number Original line Diff line number Diff line
@@ -3140,6 +3140,8 @@ static void i40e_netpoll(struct net_device *netdev) 
	pf->flags &= ~I40E_FLAG_IN_NETPOLL;

	pf->flags &= ~I40E_FLAG_IN_NETPOLL;

}

}

#endif

#endif

	/* set the prefena field to 1 because the manual says to */

	rx_ctx.prefena = 1;





/**

/**

 * i40e_vsi_control_tx - Start or stop a VSI's rings

 * i40e_vsi_control_tx - Start or stop a VSI's rings

drivers/net/ethernet/intel/i40evf/i40e_lan_hmc.h

+1 −0
Original line number Original line Diff line number Diff line
@@ -53,6 +53,7 @@ struct i40e_hmc_obj_rxq { 
	u8  tphdata_ena;

	u8  tphdata_ena;

	u8  tphhead_ena;

	u8  tphhead_ena;

	u8  lrxqthresh;

	u8  lrxqthresh;

	u8  prefena;	/* NOTE: normally must be set to 1 at init */

};

};





/* Tx queue context data */

/* Tx queue context data */