From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 26AA7C433E0 for ; Tue, 9 Feb 2021 20:12:44 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A079164E7E for ; Tue, 9 Feb 2021 20:12:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A079164E7E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ilande.co.uk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40380 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l9ZNK-0007od-Lz for qemu-devel@archiver.kernel.org; Tue, 09 Feb 2021 15:12:42 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:58126) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l9YlN-0006Vc-6h for qemu-devel@nongnu.org; Tue, 09 Feb 2021 14:33:29 -0500 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]:57084 helo=mail.default.ilande.uk0.bigv.io) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l9YlI-00033k-OS for qemu-devel@nongnu.org; Tue, 09 Feb 2021 14:33:28 -0500 Received: from host109-153-84-1.range109-153.btcentralplus.com ([109.153.84.1] helo=kentang.home) by mail.default.ilande.uk0.bigv.io with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l9YlN-0007pt-4h; Tue, 09 Feb 2021 19:33:35 +0000 From: Mark Cave-Ayland To: qemu-devel@nongnu.org, pbonzini@redhat.com, fam@euphon.net, laurent@vivier.eu Date: Tue, 9 Feb 2021 19:30:11 +0000 Message-Id: <20210209193018.31339-36-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210209193018.31339-1-mark.cave-ayland@ilande.co.uk> References: <20210209193018.31339-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 109.153.84.1 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v2 35/42] esp: raise interrupt after every non-DMA byte transferred to the FIFO X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.default.ilande.uk0.bigv.io) Received-SPF: pass client-ip=2001:41c9:1:41f::167; envelope-from=mark.cave-ayland@ilande.co.uk; helo=mail.default.ilande.uk0.bigv.io X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This matches the description in the datasheet and is required as support for non-DMA transfers is added. Signed-off-by: Mark Cave-Ayland --- hw/scsi/esp.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 8b856155d1..617fdcb3ed 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -767,6 +767,12 @@ void esp_reg_write(ESPState *s, uint32_t saddr, uint64_t val) s->ti_size++; s->ti_buf[s->ti_wptr++] = val & 0xff; } + + /* Non-DMA transfers raise an interrupt after every byte */ + if (s->rregs[ESP_CMD] == CMD_TI) { + s->rregs[ESP_RINTR] |= INTR_FC | INTR_BS; + esp_raise_irq(s); + } break; case ESP_CMD: s->rregs[saddr] = val; -- 2.20.1