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Commit 4061269e authored by Jinesh K. Jayakumar's avatar Jinesh K. Jayakumar
Browse files

net: aquantia: Forward device events to IPA offload sub-system 



Add support in IPA glue layer to forward device events RESET_PREPARE and
RESET_COMPLETE to IPA offload sub-system.

Change-Id: I7a411d18aa876b20c2ff76dd8c72c468a555aaab
Signed-off-by: default avatarJinesh K. Jayakumar <jineshk@codeaurora.org>
parent ef0d97ad

drivers/net/ethernet/aquantia/atlantic-fwd/atl_qcom_ipa.c

+49 −0
Original line number Diff line number Diff line
@@ -21,9 +21,14 @@ 
#include "atl_fwd.h"

#include "atl_qcom_ipa.h"



#if ATL_FWD_API_VERSION >= 2 && IPA_ETH_API_VER >= 4

#define ATL_IPA_SUPPORT_NOTIFY

#endif



struct atl_ipa_device {

	struct atl_nic *atl_nic;

	struct ipa_eth_device *eth_dev;

	struct notifier_block fwd_notify_nb;

};



static inline struct atl_fwd_ring *CH_RING(struct ipa_eth_channel *ch)
@@ -97,6 +102,31 @@ static void atl_ipa_free_buf(void *buf, struct device *dev, size_t size, 
			ch->mem_params.desc.allocator);

}



#ifdef ATL_IPA_SUPPORT_NOTIFY

static int atl_ipa_fwd_notification(struct notifier_block *nb,

				    unsigned long action, void *data)

{

	enum atl_fwd_notify notif = action;

	struct atl_ipa_device *ai_dev = container_of(

		nb, struct atl_ipa_device, fwd_notify_nb);



	switch (notif) {

	case ATL_FWD_NOTIFY_RESET_PREPARE:

		ipa_eth_device_notify(ai_dev->eth_dev,

				      IPA_ETH_DEV_RESET_PREPARE, NULL);

		break;

	case ATL_FWD_NOTIFY_RESET_COMPLETE:

		ipa_eth_device_notify(ai_dev->eth_dev,

				      IPA_ETH_DEV_RESET_COMPLETE, NULL);

		break;

	default:

		return NOTIFY_DONE;

	}



	return NOTIFY_OK;

}

#endif



static int atl_ipa_open_device(struct ipa_eth_device *eth_dev)

{

	struct atl_ipa_device *ai_dev;
@@ -119,6 +149,20 @@ static int atl_ipa_open_device(struct ipa_eth_device *eth_dev) 
	eth_dev->nd_priv = ai_dev;

	eth_dev->net_dev = nic->ndev;



#ifdef ATL_IPA_SUPPORT_NOTIFY

	ai_dev->fwd_notify_nb.notifier_call = atl_ipa_fwd_notification;



	if (atl_fwd_register_notifier(nic->ndev, &ai_dev->fwd_notify_nb)) {

		dev_err(eth_dev->dev, "Failed to register notifier\n");



		eth_dev->nd_priv = NULL;

		eth_dev->net_dev = NULL;

		kfree(ai_dev);



		return -EFAULT;

	}

#endif



	return 0;

}
@@ -126,6 +170,11 @@ static void atl_ipa_close_device(struct ipa_eth_device *eth_dev) 
{

	struct atl_ipa_device *ai_dev = eth_dev->nd_priv;



#ifdef ATL_IPA_SUPPORT_NOTIFY

	atl_fwd_unregister_notifier(ai_dev->atl_nic->ndev,

				    &ai_dev->fwd_notify_nb);

#endif



	eth_dev->nd_priv = NULL;

	eth_dev->net_dev = NULL;