diff options
Diffstat (limited to 'drivers/net/ipa/gsi.c')
| -rw-r--r-- | drivers/net/ipa/gsi.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index f8036ee78647..bea2da1c4c51 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. - * Copyright (C) 2018-2021 Linaro Ltd. + * Copyright (C) 2018-2022 Linaro Ltd. */ #include <linux/types.h> @@ -56,9 +56,9 @@ * element can also contain an immediate command, requesting the IPA perform * actions other than data transfer. * - * Each TRE refers to a block of data--also located DRAM. After writing one - * or more TREs to a channel, the writer (either the IPA or an EE) writes a - * doorbell register to inform the receiving side how many elements have + * Each TRE refers to a block of data--also located in DRAM. After writing + * one or more TREs to a channel, the writer (either the IPA or an EE) writes + * a doorbell register to inform the receiving side how many elements have * been written. * * Each channel has a GSI "event ring" associated with it. An event ring @@ -1347,8 +1347,8 @@ gsi_event_trans(struct gsi *gsi, struct gsi_event *event) * we update transactions to record their actual received lengths. * * When an event for a TX channel arrives we use information in the - * transaction to report the number of requests and bytes have been - * transferred. + * transaction to report the number of requests and bytes that have + * been transferred. * * This function is called whenever we learn that the GSI hardware has filled * new events since the last time we checked. The ring's index field tells @@ -1474,7 +1474,7 @@ void gsi_channel_doorbell(struct gsi_channel *channel) iowrite32(val, gsi->virt + GSI_CH_C_DOORBELL_0_OFFSET(channel_id)); } -/* Consult hardware, move any newly completed transactions to completed list */ +/* Consult hardware, move newly completed transactions to completed state */ void gsi_channel_update(struct gsi_channel *channel) { u32 evt_ring_id = channel->evt_ring_id; @@ -1515,17 +1515,17 @@ void gsi_channel_update(struct gsi_channel *channel) * * Return: Transaction pointer, or null if none are available * - * This function returns the first entry on a channel's completed transaction - * list. If that list is empty, the hardware is consulted to determine - * whether any new transactions have completed. If so, they're moved to the - * completed list and the new first entry is returned. If there are no more - * completed transactions, a null pointer is returned. + * This function returns the first of a channel's completed transactions. + * If no transactions are in completed state, the hardware is consulted to + * determine whether any new transactions have completed. If so, they're + * moved to completed state and the first such transaction is returned. + * If there are no more completed transactions, a null pointer is returned. */ static struct gsi_trans *gsi_channel_poll_one(struct gsi_channel *channel) { struct gsi_trans *trans; - /* Get the first transaction from the completed list */ + /* Get the first completed transaction */ trans = gsi_channel_trans_complete(channel); if (trans) gsi_trans_move_polled(trans); |