From d387c761fa8c9026cd87b8a56a3150535205be73 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Mon, 2 Nov 2020 11:54:00 -0600 Subject: [PATCH] net: ipa: eliminate legacy arguments We enable a channel doorbell engine only for IPA v3.5.1, and that is now handled directly by gsi_channel_program(). When initially setting up a channel, we want that doorbell engine enabled, and we can request that independent of the IPA version. Doing that makes the "legacy" argument to gsi_channel_setup_one() unnecessary. And with that gone we can get rid of the "legacy" argument to gsi_channel_setup(), and gsi_setup() as well. Signed-off-by: Alex Elder Signed-off-by: Jakub Kicinski --- drivers/net/ipa/gsi.c | 13 ++++++------- drivers/net/ipa/gsi.h | 3 +-- drivers/net/ipa/ipa_main.c | 3 +-- 3 files changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index f22b5d2efaf9..12a2001ee1e9 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -1454,8 +1454,7 @@ static void gsi_evt_ring_teardown(struct gsi *gsi) } /* Setup function for a single channel */ -static int gsi_channel_setup_one(struct gsi *gsi, u32 channel_id, - bool legacy) +static int gsi_channel_setup_one(struct gsi *gsi, u32 channel_id) { struct gsi_channel *channel = &gsi->channel[channel_id]; u32 evt_ring_id = channel->evt_ring_id; @@ -1474,7 +1473,7 @@ static int gsi_channel_setup_one(struct gsi *gsi, u32 channel_id, if (ret) goto err_evt_ring_de_alloc; - gsi_channel_program(channel, legacy); + gsi_channel_program(channel, true); if (channel->toward_ipa) netif_tx_napi_add(&gsi->dummy_dev, &channel->napi, @@ -1551,7 +1550,7 @@ static void gsi_modem_channel_halt(struct gsi *gsi, u32 channel_id) } /* Setup function for channels */ -static int gsi_channel_setup(struct gsi *gsi, bool legacy) +static int gsi_channel_setup(struct gsi *gsi) { u32 channel_id = 0; u32 mask; @@ -1563,7 +1562,7 @@ static int gsi_channel_setup(struct gsi *gsi, bool legacy) mutex_lock(&gsi->mutex); do { - ret = gsi_channel_setup_one(gsi, channel_id, legacy); + ret = gsi_channel_setup_one(gsi, channel_id); if (ret) goto err_unwind; } while (++channel_id < gsi->channel_count); @@ -1649,7 +1648,7 @@ static void gsi_channel_teardown(struct gsi *gsi) } /* Setup function for GSI. GSI firmware must be loaded and initialized */ -int gsi_setup(struct gsi *gsi, bool legacy) +int gsi_setup(struct gsi *gsi) { struct device *dev = gsi->dev; u32 val; @@ -1693,7 +1692,7 @@ int gsi_setup(struct gsi *gsi, bool legacy) /* Writing 1 indicates IRQ interrupts; 0 would be MSI */ iowrite32(1, gsi->virt + GSI_CNTXT_INTSET_OFFSET); - return gsi_channel_setup(gsi, legacy); + return gsi_channel_setup(gsi); } /* Inverse of gsi_setup() */ diff --git a/drivers/net/ipa/gsi.h b/drivers/net/ipa/gsi.h index 36f876fb8f5a..59ace83d404c 100644 --- a/drivers/net/ipa/gsi.h +++ b/drivers/net/ipa/gsi.h @@ -166,14 +166,13 @@ struct gsi { /** * gsi_setup() - Set up the GSI subsystem * @gsi: Address of GSI structure embedded in an IPA structure - * @legacy: Set up for legacy hardware * * Return: 0 if successful, or a negative error code * * Performs initialization that must wait until the GSI hardware is * ready (including firmware loaded). */ -int gsi_setup(struct gsi *gsi, bool legacy); +int gsi_setup(struct gsi *gsi); /** * gsi_teardown() - Tear down GSI subsystem diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c index 0d3d1a5cf07c..a580cab794b1 100644 --- a/drivers/net/ipa/ipa_main.c +++ b/drivers/net/ipa/ipa_main.c @@ -111,8 +111,7 @@ int ipa_setup(struct ipa *ipa) struct device *dev = &ipa->pdev->dev; int ret; - /* Setup for IPA v3.5.1 has some slight differences */ - ret = gsi_setup(&ipa->gsi, ipa->version == IPA_VERSION_3_5_1); + ret = gsi_setup(&ipa->gsi); if (ret) return ret; -- 2.11.0