From nobody Tue Sep 15 14:47:51 2026 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hklHX0mnNz6sKXZ for ; Tue, 15 Sep 2026 14:47:52 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hklHW6G3Cz4Nx4 for ; Tue, 15 Sep 2026 14:47:51 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789483671; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=lKc8b0RZLbT/7f+GxUG9sDQXJ0ElYEpGQUbMlhy+Iow=; b=hDt9GeWr2qxc+xIbdNAmHB3Zrq7DMZndxReCF8XQW4xVZ6fhG2g1BX3xxq0xhpLRsiisDf OD7ZPm3n7ZVk6hyhXdycuOZfiB4JVD5OvVJklZgA9Or6RiOK3NkzDKCh09KEYt1LxS1Xzh iX6LB0sAlrbFUJFAgpNJ+ixEcmJlI6Ou/DdLBpu2MMudvLrmaSPsoAlUEq+ateYsXyMNuG zWesWSPSxZCO9QCGbQpPiJnPYj19JkFLY9rKZS/CI0jRmUNzBNeOyae+i109T2pqQ5nDT3 A8EvhDpP065kBunHh/5n0fvcGtBKZcWnTxbTY0kdXEXyaRWEzoNOcIAsjevkuQ== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1789483671; b=bO4NZ0EexL5PZeuAeWvzzKrFqPeK+rKTfn1CFV7uZuc0WmJ/lrIm9nENVPZihQN8tLY6B+ GKq4g5UhFH35MWMMGaVmYTtlFCHZvBQKozl+eMf2oi3xy36cOyHIohjUMzms83qdNEN2+a xLmRrn86o/MpQ/ELxm6NEQVtxIv90I8Tn7khWCzjQmiOKvcFbDBufqG6tMgH6stB4Rzusy JntQbtSFdcj+OV/XJvYv04VOUZVzdR5dMXww0uqG8JF0EusDcPytchLycIFGhovdgPzzb/ JMP9T4ElYJrZBECwSo1xXzFBhyj2b7skfzIdqEmvYIRWQqxONKm6Vvnt/GwkFA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789483671; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=lKc8b0RZLbT/7f+GxUG9sDQXJ0ElYEpGQUbMlhy+Iow=; b=mc8ylCmZjmMaG2DgOyAizfrd+UUxDUF73o6OnjzMKvXSldjvQNyw/R2Zytai8+OFtn5wBm 7Z9Q0SJmkhAOcy7ZERhascJBCaDSf5vjCARj2Ty+6843qEO3oHJ0/JaPDRqElg8L1btOvm aHZhyy2ngX4LSRqLTWylUwPoT3cfT1UjUZkSBVwJMQx2XPPmZU0ixuHsRntRkYKEK2XUSF PbAv6YTQiJCvfZWIZjKETXOD1NnLSGTKq78Da3nJnqBTm35dV8UMH1WdbvfENSxJ/9y55r 9teRSKpPxluujtDdP10m5eSa/yzv+h2xC8U69Af3OO1c0yRTvswQ8JkLOu5G+A== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hklHW5MLHz14dr for ; Tue, 15 Sep 2026 14:47:51 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 37c93 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 15 Sep 2026 14:47:51 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Cc: Steve Wise From: John Baldwin Subject: git: 96d9a91d6aaf - main - iw_cxgbe: use __raw_write*() to allow write-combining List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jhb X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 96d9a91d6aafa862f6e0740bbaa6cbc936ad5e19 Auto-Submitted: auto-generated Date: Tue, 15 Sep 2026 14:47:51 +0000 Message-Id: <6aa95a97.37c93.470b722b@gitrepo.freebsd.org> The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=96d9a91d6aafa862f6e0740bbaa6cbc936ad5e19 commit 96d9a91d6aafa862f6e0740bbaa6cbc936ad5e19 Author: Steve Wise AuthorDate: 2018-03-10 20:37:56 +0000 Commit: John Baldwin CommitDate: 2026-09-15 14:22:39 +0000 iw_cxgbe: use __raw_write*() to allow write-combining pio_copy() is suppose to be used for write-combining work requests. However, for some architectures like powerpc and arm64, write[ql]() include an explicit memory barrier which will flush the WC buffer and render this path useless. To prevent that use the relaxed variant. Sponsored by: Chelsio Communications --- sys/dev/cxgbe/iw_cxgbe/t4.h | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/sys/dev/cxgbe/iw_cxgbe/t4.h b/sys/dev/cxgbe/iw_cxgbe/t4.h index 88089213c22b..67efd3effe4b 100644 --- a/sys/dev/cxgbe/iw_cxgbe/t4.h +++ b/sys/dev/cxgbe/iw_cxgbe/t4.h @@ -490,7 +490,7 @@ static inline void pio_copy(u64 __iomem *dst, u64 *src) int count = 8; while (count) { - writeq(*src, dst); + __raw_writeq(*src, dst); src++; dst++; count--; @@ -512,9 +512,8 @@ t4_ring_sq_db(struct t4_wq *wq, u16 inc, union t4_wr *wqe, u8 wc) } else { CTR2(KTR_IW_CXGBE, "%s: DB wq->sq.pidx = %d", __func__, wq->sq.pidx); - writel(V_PIDX_T5(inc) | V_QID(wq->sq.bar2_qid), - (void __iomem *)((u64)wq->sq.bar2_va + - SGE_UDB_KDOORBELL)); + __raw_writel(V_PIDX_T5(inc) | V_QID(wq->sq.bar2_qid), + (char __iomem *)wq->sq.bar2_va + SGE_UDB_KDOORBELL); } /* Flush user doorbell area writes. */ @@ -536,9 +535,8 @@ t4_ring_rq_db(struct t4_wq *wq, u16 inc, union t4_recv_wr *wqe, u8 wc) } else { CTR2(KTR_IW_CXGBE, "%s: DB wq->rq.pidx = %d", __func__, wq->rq.pidx); - writel(V_PIDX_T5(inc) | V_QID(wq->rq.bar2_qid), - (void __iomem *)((u64)wq->rq.bar2_va + - SGE_UDB_KDOORBELL)); + __raw_writel(V_PIDX_T5(inc) | V_QID(wq->rq.bar2_qid), + (char __iomem *)wq->rq.bar2_va + SGE_UDB_KDOORBELL); } /* Flush user doorbell area writes. */