diff options
| -rw-r--r-- | drivers/net/ipa/gsi.c | 16 | ||||
| -rw-r--r-- | drivers/net/ipa/gsi.h | 6 |
2 files changed, 10 insertions, 12 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index 1e19160281dd..178d6ec2699e 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -747,7 +747,8 @@ static void gsi_channel_program(struct gsi_channel *channel, bool doorbell) if (doorbell) val |= USE_DB_ENG_FMASK; - if (!channel->use_prefetch) + /* Starting with IPA v4.0 the command channel uses the escape buffer */ + if (gsi->version != IPA_VERSION_3_5_1 && channel->command) val |= USE_ESCAPE_BUF_ONLY_FMASK; iowrite32(val, gsi->virt + GSI_CH_C_QOS_OFFSET(channel_id)); @@ -1815,7 +1816,7 @@ static bool gsi_channel_data_valid(struct gsi *gsi, /* Init function for a single channel */ static int gsi_channel_init_one(struct gsi *gsi, const struct ipa_gsi_endpoint_data *data, - bool command, bool prefetch) + bool command) { struct gsi_channel *channel; u32 tre_count; @@ -1839,7 +1840,6 @@ static int gsi_channel_init_one(struct gsi *gsi, channel->gsi = gsi; channel->toward_ipa = data->toward_ipa; channel->command = command; - channel->use_prefetch = command && prefetch; channel->tlv_count = data->channel.tlv_count; channel->tre_count = tre_count; channel->event_count = data->channel.event_count; @@ -1893,7 +1893,7 @@ static void gsi_channel_exit_one(struct gsi_channel *channel) } /* Init function for channels */ -static int gsi_channel_init(struct gsi *gsi, bool prefetch, u32 count, +static int gsi_channel_init(struct gsi *gsi, u32 count, const struct ipa_gsi_endpoint_data *data, bool modem_alloc) { @@ -1917,7 +1917,7 @@ static int gsi_channel_init(struct gsi *gsi, bool prefetch, u32 count, continue; } - ret = gsi_channel_init_one(gsi, &data[i], command, prefetch); + ret = gsi_channel_init_one(gsi, &data[i], command); if (ret) goto err_unwind; } @@ -1962,17 +1962,15 @@ int gsi_init(struct gsi *gsi, struct platform_device *pdev, resource_size_t size; unsigned int irq; bool modem_alloc; - bool prefetch; int ret; gsi_validate_build(); - /* IPA v4.0+ (GSI v2.0+) uses prefetch for the command channel */ - prefetch = version != IPA_VERSION_3_5_1; /* IPA v4.2 requires the AP to allocate channels for the modem */ modem_alloc = version == IPA_VERSION_4_2; gsi->dev = dev; + gsi->version = version; /* The GSI layer performs NAPI on all endpoints. NAPI requires a * network device structure, but the GSI layer does not have one, @@ -2016,7 +2014,7 @@ int gsi_init(struct gsi *gsi, struct platform_device *pdev, goto err_free_irq; } - ret = gsi_channel_init(gsi, prefetch, count, data, modem_alloc); + ret = gsi_channel_init(gsi, count, data, modem_alloc); if (ret) goto err_iounmap; diff --git a/drivers/net/ipa/gsi.h b/drivers/net/ipa/gsi.h index 2dd8ee78aa8c..cf117b52496c 100644 --- a/drivers/net/ipa/gsi.h +++ b/drivers/net/ipa/gsi.h @@ -13,6 +13,8 @@ #include <linux/platform_device.h> #include <linux/netdevice.h> +#include "ipa_version.h" + /* Maximum number of channels and event rings supported by the driver */ #define GSI_CHANNEL_COUNT_MAX 17 #define GSI_EVT_RING_COUNT_MAX 13 @@ -20,8 +22,6 @@ /* Maximum TLV FIFO size for a channel; 64 here is arbitrary (and high) */ #define GSI_TLV_MAX 64 -enum ipa_version; - struct device; struct scatterlist; struct platform_device; @@ -109,7 +109,6 @@ struct gsi_channel { struct gsi *gsi; bool toward_ipa; bool command; /* AP command TX channel or not */ - bool use_prefetch; /* use prefetch (else escape buf) */ u8 tlv_count; /* # entries in TLV FIFO */ u16 tre_count; @@ -149,6 +148,7 @@ struct gsi_evt_ring { struct gsi { struct device *dev; /* Same as IPA device */ + enum ipa_version version; struct net_device dummy_dev; /* needed for NAPI */ void __iomem *virt; u32 irq; |