From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 08AC578F49; Mon, 6 Jan 2025 15:29:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736177359; cv=none; b=ROsVgbhKl3KB9k2bC/XzW2vmLTvUm6uSWKU4mCvdC3HRAg17wWtYzPfszQ6J/jpIffD+Nka+7Vvv2ocSasOL3tHfycWpg3OFEUn8Y5DxXDRHxWs8dh5syo5KlcuqWEXshpNkixvvCL1xkWfmgMzPzUOfWtY2lZOD88TcCxm5kXU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736177359; c=relaxed/simple; bh=2OmV95Ks4TdgExp5InDPnl4AbOdUFHXBe6yaiO0dpIA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=NYfUx+13UCMsYf5xATQhTJaA7Usnp9uT/nE7RurDMtFlcM6wpBtezAkQkDjntOIk/7bCVh/q08bciOKivjwA2qtqDUzIFTs0f4/tGVnxW8KK7g48WEguUTEeo7Lb+PKziUgCnPJRmU3XSnGYN6jQ+LA9eEoS7BWY59DT/uJKYtI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=C0D/xF1r; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="C0D/xF1r" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58ABBC4CED2; Mon, 6 Jan 2025 15:29:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1736177358; bh=2OmV95Ks4TdgExp5InDPnl4AbOdUFHXBe6yaiO0dpIA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=C0D/xF1rdQoY3Eh9iXtbuITkBC3eCNU/S47RqLd5eIZJVmyPLS9eARmUe9AVcOHa3 2Kdar+Z3wgtusBHqb+/Eu/hyrIF7DhTvobsu+oZOnt+u8jLxwRYmwyEIldwHxC2agk I4S64V9rzLr9AuNBBcIxPGLjUktXWcG9evbMtMBo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Kalesh AP , Selvin Xavier , Leon Romanovsky , Sasha Levin Subject: [PATCH 6.6 138/222] RDMA/bnxt_re: Disable use of reserved wqes Date: Mon, 6 Jan 2025 16:15:42 +0100 Message-ID: <20250106151155.991840745@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20250106151150.585603565@linuxfoundation.org> References: <20250106151150.585603565@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kalesh AP [ Upstream commit d5a38bf2f35979537c526acbc56bc435ed40685f ] Disabling the reserved wqes logic for Gen P5/P7 devices because this workaround is required only for legacy devices. Fixes: ecb53febfcad ("RDMA/bnxt_en: Enable RDMA driver support for 57500 chip") Signed-off-by: Kalesh AP Signed-off-by: Selvin Xavier Link: https://patch.msgid.link/20241217102649.1377704-3-kalesh-anakkur.purayil@broadcom.com Signed-off-by: Leon Romanovsky Signed-off-by: Sasha Levin --- drivers/infiniband/hw/bnxt_re/qplib_sp.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/infiniband/hw/bnxt_re/qplib_sp.c b/drivers/infiniband/hw/bnxt_re/qplib_sp.c index a46df2a5ab33..577a6eaca4ce 100644 --- a/drivers/infiniband/hw/bnxt_re/qplib_sp.c +++ b/drivers/infiniband/hw/bnxt_re/qplib_sp.c @@ -130,11 +130,13 @@ int bnxt_qplib_get_dev_attr(struct bnxt_qplib_rcfw *rcfw, sb->max_qp_init_rd_atom > BNXT_QPLIB_MAX_OUT_RD_ATOM ? BNXT_QPLIB_MAX_OUT_RD_ATOM : sb->max_qp_init_rd_atom; attr->max_qp_wqes = le16_to_cpu(sb->max_qp_wr) - 1; - /* - * 128 WQEs needs to be reserved for the HW (8916). Prevent - * reporting the max number - */ - attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1; + if (!bnxt_qplib_is_chip_gen_p5_p7(rcfw->res->cctx)) { + /* + * 128 WQEs needs to be reserved for the HW (8916). Prevent + * reporting the max number on legacy devices + */ + attr->max_qp_wqes -= BNXT_QPLIB_RESERVED_QP_WRS + 1; + } attr->max_qp_sges = cctx->modes.wqe_mode == BNXT_QPLIB_WQE_MODE_VARIABLE ? min_t(u32, sb->max_sge_var_wqe, BNXT_VAR_MAX_SGE) : 6; -- 2.39.5