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msm: ipa4: function prototype for new qmap flow control

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Add new function prototype for rmnet_ctl module to support new
qmap flow control with new IPA pipes.

Change-Id: I5b2cfa5c7575dc67096cc11fd74402946fb71617
Signed-off-by: Bojun Pan <bojunp@codeaurora.org>
This commit is contained in:
Bojun Pan 2020-01-30 18:24:47 -08:00 • committed by Gerrit - the friendly Code Review server
commit 4aa37836f1
1 changed files with 81 additions and 1 deletions
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82
include/linux/ipa.h
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@ -829,7 +829,6 @@ struct ipa_rx_page_data {
bool is_tmp_alloc;
};
/**
* enum ipa_irq_type - IPA Interrupt Type
* Used to register handlers for IPA interrupts
@ -1508,6 +1507,18 @@ int ipa_set_single_ndp_per_mbim(bool enable);
int ipa_tx_dp(enum ipa_client_type dst, struct sk_buff *skb,
struct ipa_tx_meta *metadata);
/*
* ipa_rmnet_ctl_xmit - QMAP Flow control TX
*
* @skb - tx QMAP control packet
*
* Note: This need to be called after client receive rmnet_ctl_
* ready_cb and want to send TX flow control message.
*
* This funciton will return 0 on success, -EAGAIN if pipe if full.
*/
int ipa_rmnet_ctl_xmit(struct sk_buff *skb);
/*
* To transfer multiple data packets
* While passing the data descriptor list, the anchor node
@ -1700,6 +1711,12 @@ int ipa_stop_gsi_channel(u32 clnt_hdl);
typedef void (*ipa_ready_cb)(void *user_data);
typedef void (*ipa_rmnet_ctl_ready_cb)(void *user_data);
typedef void (*ipa_rmnet_ctl_stop_cb)(void *user_data);
typedef void (*ipa_rmnet_ctl_rx_notify_cb)(void *user_data, void *rx_data);
/**
* ipa_register_ipa_ready_cb() - register a callback to be invoked
* when IPA core driver initialization is complete.
@ -1722,6 +1739,45 @@ typedef void (*ipa_ready_cb)(void *user_data);
int ipa_register_ipa_ready_cb(void (*ipa_ready_cb)(void *user_data),
void *user_data);
/**
* ipa_register_rmnet_ctl_cb() - register callbacks to be invoked
* to rmnet_ctl for qmap flow control pipes setup/teardown/rx_notify.
*
* @ipa_rmnet_ctl_ready_cb: CB to be called when pipes setup.
* @user_data1: user_data for ipa_rmnet_ctl_ready_cb.
* @ipa_rmnet_ctl_stop_cb: CB to be called when pipes teardown.
* @user_data2: user_data for ipa_rmnet_ctl_stop_cb.
* @ipa_rmnet_ctl_rx_notify_cb: CB to be called when receive rx pkts.
* @user_data3: user_data for ipa_rmnet_ctl_rx_notify_cb.
* @rx_data: RX data buffer.
*
* Note: This function is expected to be utilized for rmnet_ctl
* module when new qmap flow control is enabled.
*
* The function will return 0 on success, -EAGAIN if IPA not ready,
* -ENXIO is feature is not enabled, -EEXIST if already called.
*/
int ipa_register_rmnet_ctl_cb(
void (*ipa_rmnet_ctl_ready_cb)(void *user_data1),
void *user_data1,
void (*ipa_rmnet_ctl_stop_cb)(void *user_data2),
void *user_data2,
void (*ipa_rmnet_ctl_rx_notify_cb)(void *user_data3, void *rx_data),
void *user_data3);
/**
* ipa_unregister_rmnet_ctl_cb() - unregister callbacks to be
* invoked to rmnet_ctl for qmap flow control pipes
* setup/teardown/rx_notify.
*
* Note: This function is expected to be utilized for rmnet_ctl
* module when new qmap flow control is enabled.
*
* The function will return 0 on success, -EAGAIN if IPA not ready,
* -ENXIO is feature is not enabled.
*/
int ipa_unregister_rmnet_ctl_cb(void);
/**
* ipa_tz_unlock_reg - Unlocks memory regions so that they become accessible
* from AP.
@ -2173,6 +2229,14 @@ static inline int ipa_tx_dp(enum ipa_client_type dst, struct sk_buff *skb,
return -EPERM;
}
/*
* QMAP Flow control TX
*/
static inline int ipa_rmnet_ctl_xmit(struct sk_buff *skb)
{
return -EPERM;
}
/*
* To transfer multiple data packets
*/
@ -2591,6 +2655,22 @@ static inline int ipa_register_ipa_ready_cb(
return -EPERM;
}
static inline int ipa_register_rmnet_ctl_cb(
void (*ipa_rmnet_ctl_ready_cb)(void *user_data1),
void *user_data1,
void (*ipa_rmnet_ctl_stop_cb)(void *user_data2),
void *user_data2,
void (*ipa_rmnet_ctl_rx_notify_cb)(void *user_data3, void *rx_data),
void *user_data3)
{
return -EPERM;
}
static inline int ipa_unregister_rmnet_ctl_cb(void)
{
return -EPERM;
}
static inline int ipa_tz_unlock_reg(struct ipa_tz_unlock_reg_info *reg_info,
u16 num_regs)
{