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From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
To: qemu-devel@nongnu.org, pbonzini@redhat.com, fam@euphon.net,
	laurent@vivier.eu
Subject: [PATCH v3 31/42] esp: implement FIFO flush command
Date: Thu,  4 Mar 2021 22:10:52 +0000
Message-ID: <20210304221103.6369-32-mark.cave-ayland@ilande.co.uk> (raw)
In-Reply-To: <20210304221103.6369-1-mark.cave-ayland@ilande.co.uk>

At this point it is now possible to properly implement the FIFO flush command
without causing guest errors.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
---
 hw/scsi/esp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c
index 2dded90be6..6aae6f91c2 100644
--- a/hw/scsi/esp.c
+++ b/hw/scsi/esp.c
@@ -769,6 +769,8 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val)
         case CMD_FLUSH:
             trace_esp_mem_writeb_cmd_flush(val);
             /*s->ti_size = 0;*/
+            s->ti_wptr = 0;
+            s->ti_rptr = 0;
             s->rregs[ESP_RINTR] = INTR_FC;
             s->rregs[ESP_RSEQ] = 0;
             s->rregs[ESP_RFLAGS] = 0;
-- 
2.20.1



  parent reply index

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-04 22:10 [PATCH v3 00/42] esp: consolidate PDMA transfer buffers and other fixes Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 01/42] esp: checkpatch fixes Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 02/42] esp: rename existing ESP QOM type to SYSBUS_ESP Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 03/42] esp: QOMify the internal ESP device state Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 04/42] esp: add vmstate_esp version to embedded ESPState Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 05/42] esp: add trace event when receiving a TI command Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 06/42] esp: fix esp_reg_read() trace event Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 07/42] esp: add PDMA trace events Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 08/42] esp: determine transfer direction directly from SCSI phase Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 09/42] esp: introduce esp_get_tc() and esp_set_tc() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 10/42] esp: introduce esp_get_stc() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 11/42] esp: apply transfer length adjustment when STC is zero at TC load time Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 12/42] esp: remove dma_counter from ESPState Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 13/42] esp: remove dma_left " Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 14/42] esp: remove minlen restriction in handle_ti Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 15/42] esp: introduce esp_pdma_read() and esp_pdma_write() functions Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 16/42] esp: use pdma_origin directly in esp_pdma_read()/esp_pdma_write() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 17/42] esp: move pdma_len and TC logic into esp_pdma_read()/esp_pdma_write() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 18/42] esp: accumulate SCSI commands for PDMA transfers in cmdbuf instead of pdma_buf Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 19/42] esp: remove buf parameter from do_cmd() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 20/42] esp: remove the buf and buflen parameters from get_cmd() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 21/42] esp: remove redundant pdma_start from ESPState Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 22/42] esp: move PDMA length adjustments into esp_pdma_read()/esp_pdma_write() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 23/42] esp: use ti_wptr/ti_rptr to manage the current FIFO position for PDMA Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 24/42] esp: use in-built TC to determine PDMA transfer length Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 25/42] esp: remove CMD pdma_origin Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 26/42] esp: rename get_cmd_cb() to esp_select() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 27/42] esp: fix PDMA target selection Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 28/42] esp: use FIFO for PDMA transfers between initiator and device Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 29/42] esp: remove pdma_origin from ESPState Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 30/42] esp: add 4 byte PDMA read and write transfers Mark Cave-Ayland
2021-03-04 22:10 ` Mark Cave-Ayland [this message]
2021-03-04 22:10 ` [PATCH v3 32/42] esp: latch individual bits in ESP_RINTR register Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 33/42] esp: defer command completion interrupt on incoming data transfers Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 34/42] esp: remove old deferred command completion mechanism Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 35/42] esp: raise interrupt after every non-DMA byte transferred to the FIFO Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 36/42] esp: add maxlen parameter to get_cmd() Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 37/42] esp: transition to message out phase after SATN and stop command Mark Cave-Ayland
2021-03-04 22:10 ` [PATCH v3 38/42] esp: convert ti_buf from array to Fifo8 Mark Cave-Ayland
2021-03-04 22:11 ` [PATCH v3 39/42] esp: convert cmdbuf " Mark Cave-Ayland
2021-03-04 22:11 ` [PATCH v3 40/42] esp: add trivial implementation of the ESP_RFLAGS register Mark Cave-Ayland
2021-03-04 22:11 ` [PATCH v3 41/42] esp: implement non-DMA transfers in PDMA mode Mark Cave-Ayland
2021-03-04 22:11 ` [PATCH v3 42/42] esp: add support for unaligned accesses Mark Cave-Ayland
2021-03-04 22:58 ` [PATCH v3 00/42] esp: consolidate PDMA transfer buffers and other fixes Philippe Mathieu-Daudé
2021-03-05  7:31   ` Mark Cave-Ayland

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