sfc: move MCDI event queue management code
A function was split, the others were renamed. Code style fixes included. Signed-off-by: Alexandru-Mihai Maftei <amaftei@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alex Maftei (amaftei)
David S. Miller
Родитель
37a5f9dceb
Коммит
4438b587fe
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@ -3199,106 +3199,20 @@ efx_ef10_rx_defer_refill_complete(struct efx_nic *efx, unsigned long cookie,
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/* nothing to do */
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}
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static int efx_ef10_ev_probe(struct efx_channel *channel)
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{
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return efx_nic_alloc_buffer(channel->efx, &channel->eventq.buf,
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(channel->eventq_mask + 1) *
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sizeof(efx_qword_t),
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GFP_KERNEL);
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}
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static void efx_ef10_ev_fini(struct efx_channel *channel)
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{
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MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_EVQ_IN_LEN);
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MCDI_DECLARE_BUF_ERR(outbuf);
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struct efx_nic *efx = channel->efx;
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size_t outlen;
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int rc;
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MCDI_SET_DWORD(inbuf, FINI_EVQ_IN_INSTANCE, channel->channel);
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rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FINI_EVQ, inbuf, sizeof(inbuf),
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outbuf, sizeof(outbuf), &outlen);
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if (rc && rc != -EALREADY)
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goto fail;
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return;
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fail:
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efx_mcdi_display_error(efx, MC_CMD_FINI_EVQ, MC_CMD_FINI_EVQ_IN_LEN,
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outbuf, outlen, rc);
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}
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static int efx_ef10_ev_init(struct efx_channel *channel)
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{
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MCDI_DECLARE_BUF(inbuf,
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MC_CMD_INIT_EVQ_V2_IN_LEN(EFX_MAX_EVQ_SIZE * 8 /
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EFX_BUF_SIZE));
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MCDI_DECLARE_BUF(outbuf, MC_CMD_INIT_EVQ_V2_OUT_LEN);
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size_t entries = channel->eventq.buf.len / EFX_BUF_SIZE;
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struct efx_nic *efx = channel->efx;
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struct efx_ef10_nic_data *nic_data;
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size_t inlen, outlen;
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unsigned int enabled, implemented;
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dma_addr_t dma_addr;
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bool use_v2, cut_thru;
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int rc;
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int i;
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nic_data = efx->nic_data;
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/* Fill event queue with all ones (i.e. empty events) */
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memset(channel->eventq.buf.addr, 0xff, channel->eventq.buf.len);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_SIZE, channel->eventq_mask + 1);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_INSTANCE, channel->channel);
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/* INIT_EVQ expects index in vector table, not absolute */
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_IRQ_NUM, channel->channel);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_MODE,
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MC_CMD_INIT_EVQ_IN_TMR_MODE_DIS);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_LOAD, 0);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_RELOAD, 0);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_COUNT_MODE,
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MC_CMD_INIT_EVQ_IN_COUNT_MODE_DIS);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_COUNT_THRSHLD, 0);
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if (nic_data->datapath_caps2 &
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1 << MC_CMD_GET_CAPABILITIES_V2_OUT_INIT_EVQ_V2_LBN) {
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/* Use the new generic approach to specifying event queue
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* configuration, requesting lower latency or higher throughput.
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* The options that actually get used appear in the output.
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*/
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MCDI_POPULATE_DWORD_2(inbuf, INIT_EVQ_V2_IN_FLAGS,
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INIT_EVQ_V2_IN_FLAG_INTERRUPTING, 1,
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INIT_EVQ_V2_IN_FLAG_TYPE,
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MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_AUTO);
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} else {
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bool cut_thru = !(nic_data->datapath_caps &
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1 << MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_LBN);
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MCDI_POPULATE_DWORD_4(inbuf, INIT_EVQ_IN_FLAGS,
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INIT_EVQ_IN_FLAG_INTERRUPTING, 1,
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INIT_EVQ_IN_FLAG_RX_MERGE, 1,
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INIT_EVQ_IN_FLAG_TX_MERGE, 1,
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INIT_EVQ_IN_FLAG_CUT_THRU, cut_thru);
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}
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dma_addr = channel->eventq.buf.dma_addr;
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for (i = 0; i < entries; ++i) {
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MCDI_SET_ARRAY_QWORD(inbuf, INIT_EVQ_IN_DMA_ADDR, i, dma_addr);
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dma_addr += EFX_BUF_SIZE;
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}
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inlen = MC_CMD_INIT_EVQ_IN_LEN(entries);
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rc = efx_mcdi_rpc(efx, MC_CMD_INIT_EVQ, inbuf, inlen,
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outbuf, sizeof(outbuf), &outlen);
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if (outlen >= MC_CMD_INIT_EVQ_V2_OUT_LEN)
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netif_dbg(efx, drv, efx->net_dev,
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"Channel %d using event queue flags %08x\n",
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channel->channel,
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MCDI_DWORD(outbuf, INIT_EVQ_V2_OUT_FLAGS));
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use_v2 = nic_data->datapath_caps2 &
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1 << MC_CMD_GET_CAPABILITIES_V2_OUT_INIT_EVQ_V2_LBN;
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cut_thru = !(nic_data->datapath_caps &
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1 << MC_CMD_GET_CAPABILITIES_OUT_RX_BATCHING_LBN);
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rc = efx_mcdi_ev_init(channel, cut_thru, use_v2);
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/* IRQ return is ignored */
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if (channel->channel || rc)
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@ -3356,15 +3270,10 @@ static int efx_ef10_ev_init(struct efx_channel *channel)
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return 0;
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fail:
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efx_ef10_ev_fini(channel);
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efx_mcdi_ev_fini(channel);
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return rc;
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}
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static void efx_ef10_ev_remove(struct efx_channel *channel)
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{
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efx_nic_free_buffer(channel->efx, &channel->eventq.buf);
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}
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static void efx_ef10_handle_rx_wrong_queue(struct efx_rx_queue *rx_queue,
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unsigned int rx_queue_label)
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{
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@ -6630,10 +6539,10 @@ const struct efx_nic_type efx_hunt_a0_vf_nic_type = {
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.rx_remove = efx_ef10_rx_remove,
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.rx_write = efx_ef10_rx_write,
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.rx_defer_refill = efx_ef10_rx_defer_refill,
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.ev_probe = efx_ef10_ev_probe,
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.ev_probe = efx_mcdi_ev_probe,
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.ev_init = efx_ef10_ev_init,
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.ev_fini = efx_ef10_ev_fini,
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.ev_remove = efx_ef10_ev_remove,
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.ev_fini = efx_mcdi_ev_fini,
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.ev_remove = efx_mcdi_ev_remove,
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.ev_process = efx_ef10_ev_process,
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.ev_read_ack = efx_ef10_ev_read_ack,
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.ev_test_generate = efx_ef10_ev_test_generate,
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@ -6742,10 +6651,10 @@ const struct efx_nic_type efx_hunt_a0_nic_type = {
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.rx_remove = efx_ef10_rx_remove,
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.rx_write = efx_ef10_rx_write,
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.rx_defer_refill = efx_ef10_rx_defer_refill,
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.ev_probe = efx_ef10_ev_probe,
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.ev_probe = efx_mcdi_ev_probe,
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.ev_init = efx_ef10_ev_init,
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.ev_fini = efx_ef10_ev_fini,
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.ev_remove = efx_ef10_ev_remove,
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.ev_fini = efx_mcdi_ev_fini,
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.ev_remove = efx_mcdi_ev_remove,
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.ev_process = efx_ef10_ev_process,
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.ev_read_ack = efx_ef10_ev_read_ack,
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.ev_test_generate = efx_ef10_ev_test_generate,
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@ -59,3 +59,106 @@ int efx_mcdi_alloc_vis(struct efx_nic *efx, unsigned int min_vis,
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*allocated_vis = MCDI_DWORD(outbuf, ALLOC_VIS_OUT_VI_COUNT);
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return 0;
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}
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int efx_mcdi_ev_probe(struct efx_channel *channel)
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{
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return efx_nic_alloc_buffer(channel->efx, &channel->eventq.buf,
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(channel->eventq_mask + 1) *
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sizeof(efx_qword_t),
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GFP_KERNEL);
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}
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int efx_mcdi_ev_init(struct efx_channel *channel, bool v1_cut_thru, bool v2)
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{
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MCDI_DECLARE_BUF(inbuf,
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MC_CMD_INIT_EVQ_V2_IN_LEN(EFX_MAX_EVQ_SIZE * 8 /
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EFX_BUF_SIZE));
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MCDI_DECLARE_BUF(outbuf, MC_CMD_INIT_EVQ_V2_OUT_LEN);
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size_t entries = channel->eventq.buf.len / EFX_BUF_SIZE;
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struct efx_nic *efx = channel->efx;
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struct efx_ef10_nic_data *nic_data;
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size_t inlen, outlen;
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dma_addr_t dma_addr;
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int rc, i;
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nic_data = efx->nic_data;
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/* Fill event queue with all ones (i.e. empty events) */
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memset(channel->eventq.buf.addr, 0xff, channel->eventq.buf.len);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_SIZE, channel->eventq_mask + 1);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_INSTANCE, channel->channel);
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/* INIT_EVQ expects index in vector table, not absolute */
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_IRQ_NUM, channel->channel);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_MODE,
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MC_CMD_INIT_EVQ_IN_TMR_MODE_DIS);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_LOAD, 0);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_TMR_RELOAD, 0);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_COUNT_MODE,
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MC_CMD_INIT_EVQ_IN_COUNT_MODE_DIS);
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MCDI_SET_DWORD(inbuf, INIT_EVQ_IN_COUNT_THRSHLD, 0);
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if (v2) {
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/* Use the new generic approach to specifying event queue
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* configuration, requesting lower latency or higher throughput.
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* The options that actually get used appear in the output.
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*/
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MCDI_POPULATE_DWORD_2(inbuf, INIT_EVQ_V2_IN_FLAGS,
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INIT_EVQ_V2_IN_FLAG_INTERRUPTING, 1,
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INIT_EVQ_V2_IN_FLAG_TYPE,
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MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_AUTO);
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} else {
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MCDI_POPULATE_DWORD_4(inbuf, INIT_EVQ_IN_FLAGS,
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INIT_EVQ_IN_FLAG_INTERRUPTING, 1,
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INIT_EVQ_IN_FLAG_RX_MERGE, 1,
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INIT_EVQ_IN_FLAG_TX_MERGE, 1,
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INIT_EVQ_IN_FLAG_CUT_THRU, v1_cut_thru);
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}
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dma_addr = channel->eventq.buf.dma_addr;
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for (i = 0; i < entries; ++i) {
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MCDI_SET_ARRAY_QWORD(inbuf, INIT_EVQ_IN_DMA_ADDR, i, dma_addr);
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dma_addr += EFX_BUF_SIZE;
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}
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inlen = MC_CMD_INIT_EVQ_IN_LEN(entries);
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rc = efx_mcdi_rpc(efx, MC_CMD_INIT_EVQ, inbuf, inlen,
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outbuf, sizeof(outbuf), &outlen);
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if (outlen >= MC_CMD_INIT_EVQ_V2_OUT_LEN)
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netif_dbg(efx, drv, efx->net_dev,
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"Channel %d using event queue flags %08x\n",
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channel->channel,
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MCDI_DWORD(outbuf, INIT_EVQ_V2_OUT_FLAGS));
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return rc;
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}
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void efx_mcdi_ev_remove(struct efx_channel *channel)
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{
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efx_nic_free_buffer(channel->efx, &channel->eventq.buf);
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}
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void efx_mcdi_ev_fini(struct efx_channel *channel)
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{
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MCDI_DECLARE_BUF(inbuf, MC_CMD_FINI_EVQ_IN_LEN);
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MCDI_DECLARE_BUF_ERR(outbuf);
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struct efx_nic *efx = channel->efx;
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size_t outlen;
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int rc;
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MCDI_SET_DWORD(inbuf, FINI_EVQ_IN_INSTANCE, channel->channel);
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rc = efx_mcdi_rpc_quiet(efx, MC_CMD_FINI_EVQ, inbuf, sizeof(inbuf),
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outbuf, sizeof(outbuf), &outlen);
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if (rc && rc != -EALREADY)
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goto fail;
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return;
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fail:
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efx_mcdi_display_error(efx, MC_CMD_FINI_EVQ, MC_CMD_FINI_EVQ_IN_LEN,
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outbuf, outlen, rc);
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}
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