From nobody Tue Feb 10 12:58:43 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1617263637; cv=none; d=zohomail.com; s=zohoarc; b=bb9dTnpnmlp1bg9JIBih4vv/mRBspYuF7/eaYH+APxgiQZoYQrCnK0W8bOdAkatUjzAcwYxFWuVlTsjt8vNSSIbJP5ug6/q7g3FwSLpQGhBE5HFI7xxEb2zX2nmkM7ab9IMEjOTYqcH5/qlTAJ0J0TAz8pdcysgm+815nfqu9Aw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1617263637; h=Content-Transfer-Encoding:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=o856PUeuYeOH3zC12ngHJrmpyfSD9OLErUJBnSfedZo=; b=JObfW5BPnYiqQac+H684mSe9NXuGboHEiyPjHi+LzyYK6hO6Ov2x9yS59J/le+7mLl5JHqsfwsdhGLUNU8/ItBhkkMiTX6mY23E0WPrShZd9FJTyQmwxe8itibEJatC0qh8lYqPZxgZqy3wnZ4viFe558F0nuUP0yiOPhy6egKY= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1617263637039295.7202965451062; Thu, 1 Apr 2021 00:53:57 -0700 (PDT) Received: from localhost ([::1]:44094 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lRs9J-0002bE-Vx for importer@patchew.org; Thu, 01 Apr 2021 03:53:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56998) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lRs5e-0005ax-KM for qemu-devel@nongnu.org; Thu, 01 Apr 2021 03:50:06 -0400 Received: from mail.ilande.co.uk ([2001:41c9:1:41f::167]:57024 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 1lRs5c-0000rH-VO for qemu-devel@nongnu.org; Thu, 01 Apr 2021 03:50:06 -0400 Received: from host86-148-103-9.range86-148.btcentralplus.com ([86.148.103.9] 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 1lRs5i-0004IO-TH; Thu, 01 Apr 2021 08:50:15 +0100 From: Mark Cave-Ayland To: qemu-devel@nongnu.org, alxndr@bu.edu, laurent@vivier.eu, pbonzini@redhat.com Date: Thu, 1 Apr 2021 08:49:26 +0100 Message-Id: <20210401074933.9923-5-mark.cave-ayland@ilande.co.uk> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210401074933.9923-1-mark.cave-ayland@ilande.co.uk> References: <20210401074933.9923-1-mark.cave-ayland@ilande.co.uk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SA-Exim-Connect-IP: 86.148.103.9 X-SA-Exim-Mail-From: mark.cave-ayland@ilande.co.uk Subject: [PATCH v3 04/11] esp: consolidate esp_cmdfifo_pop() into esp_fifo_pop() 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 (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Each FIFO currently has its own pop functions with the only difference being the capacity check. The original reason for this was that the fifo8 implementation doesn't have a formal API for retrieving the FIFO capacity, however there are multiple examples within QEMU where the capacity field is accessed directly. Change esp_fifo_pop() to access the FIFO capacity directly and then consoli= date esp_cmdfifo_pop() into esp_fifo_pop(). Signed-off-by: Mark Cave-Ayland Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/scsi/esp.c | 21 ++++++--------------- 1 file changed, 6 insertions(+), 15 deletions(-) diff --git a/hw/scsi/esp.c b/hw/scsi/esp.c index 16aaf8be93..ce88866803 100644 --- a/hw/scsi/esp.c +++ b/hw/scsi/esp.c @@ -107,22 +107,13 @@ static void esp_fifo_push(Fifo8 *fifo, uint8_t val) =20 fifo8_push(fifo, val); } -static uint8_t esp_fifo_pop(ESPState *s) +static uint8_t esp_fifo_pop(Fifo8 *fifo) { - if (fifo8_is_empty(&s->fifo)) { + if (fifo8_is_empty(fifo)) { return 0; } =20 - return fifo8_pop(&s->fifo); -} - -static uint8_t esp_cmdfifo_pop(ESPState *s) -{ - if (fifo8_is_empty(&s->cmdfifo)) { - return 0; - } - - return fifo8_pop(&s->cmdfifo); + return fifo8_pop(fifo); } =20 static uint32_t esp_get_tc(ESPState *s) @@ -159,9 +150,9 @@ static uint8_t esp_pdma_read(ESPState *s) uint8_t val; =20 if (s->do_cmd) { - val =3D esp_cmdfifo_pop(s); + val =3D esp_fifo_pop(&s->cmdfifo); } else { - val =3D esp_fifo_pop(s); + val =3D esp_fifo_pop(&s->fifo); } =20 return val; @@ -887,7 +878,7 @@ uint64_t esp_reg_read(ESPState *s, uint32_t saddr) qemu_log_mask(LOG_UNIMP, "esp: PIO data read not implemented\n= "); s->rregs[ESP_FIFO] =3D 0; } else { - s->rregs[ESP_FIFO] =3D esp_fifo_pop(s); + s->rregs[ESP_FIFO] =3D esp_fifo_pop(&s->fifo); } val =3D s->rregs[ESP_FIFO]; break; --=20 2.20.1